Sample records for relative risk ranking

  1. Relative risk-relative ranking in Defense and Energy Department cleanup programs: Comparison of methods, results, and role in priority setting

    SciTech Connect (OSTI)

    Turkeltaub, R. [Office of the Deputy Under Secretary of Defense, Washington, DC (United States); Treichel, L.C. [Dept. of Energy, Germantown, MD (United States). Office of Environmental Restoration; Rowe, W.D. Jr.; Strohl, A.R. [Booz Allen and Hamilton, McLean, VA (United States)

    1996-12-31T23:59:59.000Z

    This paper demonstrates how the Department of Energy (DOE) enhanced their Environmental Restoration Program by modifying the Department of Defense (DoD) Cleanup Program`s Relative Risk Site Evaluation Primer in order to create their own framework, the Relative Ranking Evaluation Framework for EM-40 Release Sites, Facilities and Buildings. In addition, this paper discusses and compares the two frameworks and presents the results of relative risk/relative ranking site evaluations for both agencies through July 1996. The status of agency efforts to implement their respective frameworks also is discussed along with plans for strengthening these initiatives in the coming year.

  2. Nuclear Facility Risk Ranking | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122Commercial602 1,39732onMake YourDepartment of EnergyNoticeFacility Risk Ranking

  3. Risk-Based Ranking Experiences for Cold War Legacy Facilities in the United States

    SciTech Connect (OSTI)

    Droppo, James G.

    2003-05-01T23:59:59.000Z

    Over the past two decades, a number of government agencies in the United States have faced increasing public scrutiny for their efforts to address the wide range of potential environmental issues related to Cold War legacies. Risk-based ranking was selected as a means of defining the relative importance of issues. Ambitious facility-wide risk-based ranking applications were undertaken. However, although facility-wide risk-based ranking efforts can build invaluable understanding of the potential issues related to Cold War legacies, conducting such efforts is difficult because of the potentially enormous scope and the potentially strong institutional barriers. The U.S. experience is that such efforts are worth undertaking to start building a knowledge base and infrastructure that are based on a thorough understanding of risk. In both the East and the West, the legacy of the Cold War includes a wide range of potential environmental issues associated with large industrial complexes of weapon production facilities. The responsible agencies or ministries are required to make decisions that could benefit greatly from information on the relative importance of these potential issues. Facility-wide risk-based ranking of potential health and environmental issues is one means to help these decision makers. The initial U.S. risk-based ranking applications described in this chapter were “ground-breaking” in that they defined new methodologies and approaches to meet the challenges. Many of these approaches fit the designation of a population-centred risk assessment. These U.S. activities parallel efforts that are just beginning for similar facilities in the countries of the former Soviet Union. As described below, conducting a facility-wide risk-based ranking has special challenges and potential pitfalls. Little guidance exists to conduct major risk-based rankings. For those considering undertaking such efforts, the material contained in this chapter should be useful background information.

  4. Environmental restoration risk-based prioritization work package planning and risk ranking methodology. Revision 2

    SciTech Connect (OSTI)

    Dail, J.L.; Nanstad, L.D.; White, R.K.

    1995-06-01T23:59:59.000Z

    This document presents the risk-based prioritization methodology developed to evaluate and rank Environmental Restoration (ER) work packages at the five US Department of Energy, Oak Ridge Field Office (DOE-ORO) sites [i.e., Oak Ridge K-25 Site (K-25), Portsmouth Gaseous Diffusion Plant (PORTS), Paducah Gaseous Diffusion Plant (PGDP), Oak Ridge National Laboratory (ORNL), and the Oak Ridge Y-12 Plant (Y-12)], the ER Off-site Program, and Central ER. This prioritization methodology was developed to support the increased rigor and formality of work planning in the overall conduct of operations within the DOE-ORO ER Program. Prioritization is conducted as an integral component of the fiscal ER funding cycle to establish program budget priorities. The purpose of the ER risk-based prioritization methodology is to provide ER management with the tools and processes needed to evaluate, compare, prioritize, and justify fiscal budget decisions for a diverse set of remedial action, decontamination and decommissioning, and waste management activities. The methodology provides the ER Program with a framework for (1) organizing information about identified DOE-ORO environmental problems, (2) generating qualitative assessments of the long- and short-term risks posed by DOE-ORO environmental problems, and (3) evaluating the benefits associated with candidate work packages designed to reduce those risks. Prioritization is conducted to rank ER work packages on the basis of the overall value (e.g., risk reduction, stakeholder confidence) each package provides to the ER Program. Application of the methodology yields individual work package ``scores`` and rankings that are used to develop fiscal budget requests. This document presents the technical basis for the decision support tools and process.

  5. Percentile rank scores are congruous indicators of relative performance, or aren't they?

    E-Print Network [OSTI]

    Rousseau, Ronald

    2011-01-01T23:59:59.000Z

    Percentile ranks and the I3 indicator were introduced by Bornmann, Leydesdorff, Mutz and Opthof. These two notions are based on the concept of percentiles (or quantiles) for discrete data. As several definitions for these notions exist we propose one that we think is suitable in this context. Next we show that if the notion of relative congruous indicators is carefully defined then percentile rank scores are congruous indicators of relative performance. The I3 indicator is a strictly congruous indicator of absolute performance.

  6. Relative risk analysis in regulating the use of radiation-emitting medical devices. A preliminary application

    SciTech Connect (OSTI)

    Jones, E.D.; Banks, W.W.; Altenbach, T.J.; Fischer, L.E. [Lawrence Livermore National Lab., CA (United States)

    1995-09-01T23:59:59.000Z

    This report describes a preliminary application of an analysis approach for assessing relative risks in the use of radiation- emitting medical devices. Results are presented on human-initiated actions and failure modes that are most likely to occur in the use of the Gamma Knife, a gamma irradiation therapy device. This effort represents an initial step in a US Nuclear Regulatory Commission (NRC) plan to evaluate the potential role of risk analysis in regulating the use of nuclear medical devices. For this preliminary application of risk assessment, the focus was to develop a basic process using existing techniques for identifying the most likely risk contributors and their relative importance. The approach taken developed relative risk rankings and profiles that incorporated the type and quality of data available and could present results in an easily understood form. This work was performed by the Lawrence Livermore National Laboratory for the NRC.

  7. Screening and ranking framework (SRF) for geologic CO2 storagesite selection on the basis of HSE risk

    SciTech Connect (OSTI)

    Oldenburg, Curtis M.

    2006-11-27T23:59:59.000Z

    A screening and ranking framework (SRF) has been developedto evaluate potential geologic carbon dioxide (CO2) storage sites on thebasis of health, safety, and environmental (HSE) risk arising from CO2leakage. The approach is based on the assumption that CO2 leakage risk isdependent on three basic characteristics of a geologic CO2 storage site:(1) the potential for primary containment by the target formation; (2)the potential for secondary containment if the primary formation leaks;and (3) the potential for attenuation and dispersion of leaking CO2 ifthe primary formation leaks and secondary containment fails. Theframework is implemented in a spreadsheet in which users enter numericalscores representing expert opinions or published information along withestimates of uncertainty. Applications to three sites in Californiademonstrate the approach. Refinements and extensions are possible throughthe use of more detailed data or model results in place of propertyproxies.

  8. Environmental Risk Evaluation System An Approach to Ranking Risk of Ocean Energy Development on Coastal and Estuarine Environments

    SciTech Connect (OSTI)

    Copping, Andrea E.; Hanna, Luke A.; Van Cleve, Frances B.; Blake, Kara M.; Anderson, Richard M.

    2015-01-01T23:59:59.000Z

    Deployment and operation of ocean energy devices does not represent the first foray into industrialization of the oceans; shipping, nearshore development, waste disposal, subsea mining, oil and gas extraction, and large-scale commercial fishing all coexist in various states of equilibrium with the marine environment. In most cases these industries were developed without a clear understanding of the likely outcomes of large-scale development. In virtually every country where the harvest of ocean energy is emerging, regulators and stakeholders require that the industry examine potential effects of devices, minimize the footprint of effects, and provide management measures that either avoid the impacts or mitigate to further reduce the residual impacts. The ERES analysis is based on scenarios that are consistent with sequences of events that lead to adverse impacts, distinguishing between episodic, intermittent, and chronic risks. In the context of ocean energy development, an episodic scenario might involve the exceedingly rare but potentially devastating event of an oil spill from vessels caused by the presence of the device, while vulnerable receptors are present; understanding the risk of such a scenario involves determining the probability of the occurrence by examining factors such as the petroleum content of ocean energy devices, the vessel traffic volume and the proximity of shipping lanes to the ocean energy devices, the reliability of the control measures to avoid an episodic event, and the likely presence of seabirds, marine mammals, or fish that may be affected by oil. In contrast, chronic risk scenarios involve events or circumstances that are continuous, so that risk characterization involves assessing only the severity of the consequences. An example of a chronic risk scenario might be the toxicity to marine organisms due to low-level chemical releases from anti-biofouling paints and coatings that may be used on devices, and the effect that the level of toxicity may have on marine flora and fauna. Between these two extremes are intermittent events, such as encounters between fish and rotating tidal turbine blades that will occur only when fish are present and the tidal device is turning. A key feature of understanding risk is describing the uncertainty associated with the occurrence of an episodic, intermittent, or chronic event, as well as the uncertainty of the resulting consequences.

  9. Feasibility of developing risk-based rankings of pressure boundary systems for inservice inspection

    SciTech Connect (OSTI)

    Vo, T.V.; Smith, B.W.; Simonen, F.A.; Gore, B.F.

    1994-08-01T23:59:59.000Z

    The goals of the Evaluation and Improvement of Non-destructive Examination Reliability for the In-service Inspection of Light Water Reactors Program sponsored by the Nuclear Regulatory Commission at Pacific Northwest Laboratory (PNL) are to (1) assess current ISI techniques and requirements for all pressure boundary systems and components, (2) determine if improvements to the requirements are needed, and (3) if necessary, develop recommendations for revising the applicable ASME Codes and regulatory requirements. In evaluating approaches that could be used to provide a technical basis for improved inservice inspection plans, PNL has developed and applied a method that uses results of probabilistic risk assessment (PRA) to establish piping system ISI requirements. In the PNL program, the feasibility of generic ISI requirements is being addressed in two phases. Phase I involves identifying and prioritizing the systems most relevant to plant safety. The results of these evaluations will be later consolidated into requirements for comprehensive inservice inspection of nuclear power plant components that will be developed in Phase II. This report presents Phase I evaluations for eight selected plants and attempts to compare these PRA-based inspection priorities with current ASME Section XI requirements for Class 1, 2 and 3 systems. These results show that there are generic insights that can be extrapolated from the selected plants to specific classes of light water reactors.

  10. SRS: Site ranking system for hazardous chemical and radioactive waste

    SciTech Connect (OSTI)

    Rechard, R.P.; Chu, M.S.Y.; Brown, S.L.

    1988-05-01T23:59:59.000Z

    This report describes the rationale and presents instructions for a site ranking system (SRS). SRS ranks hazardous chemical and radioactive waste sites by scoring important and readily available factors that influence risk to human health. Using SRS, sites can be ranked for purposes of detailed site investigations. SRS evaluates the relative risk as a combination of potentially exposed population, chemical toxicity, and potential exposure of release from a waste site; hence, SRS uses the same concepts found in a detailed assessment of health risk. Basing SRS on the concepts of risk assessment tends to reduce the distortion of results found in other ranking schemes. More importantly, a clear logic helps ensure the successful application of the ranking procedure and increases its versatility when modifications are necessary for unique situations. Although one can rank sites using a detailed risk assessment, it is potentially costly because of data and resources required. SRS is an efficient approach to provide an order-of-magnitude ranking, requiring only readily available data (often only descriptive) and hand calculations. Worksheets are included to make the system easier to understand and use. 88 refs., 19 figs., 58 tabs.

  11. Double affine Hecke algebras of rank 1 and the $Z_3$-symmetric Askey-Wilson relations

    E-Print Network [OSTI]

    Ito, Tatsuro

    2010-01-01T23:59:59.000Z

    We consider the double affine Hecke algebra $H=H(k_0,k_1,k^\\vee_0,k^\\vee_1;q)$ associated with the root system $(C^\\vee_1,C_1)$. We display three elements $x,y,z$ in $H$ that satisfy essentially the $Z_3$-symmetric Askey-Wilson relations. We obtain the relations as follows. We introduce an algebra $\\hat H$ that is more general than $H$, called the universal double affine Hecke algebra of type $(C_1^\\vee,C_1)$. An advantage of $\\hat H$ over $H$ is that it is parameter free and has a larger automorphism group. We give a surjective algebra homomorphism ${\\hat H} \\to H$. We define some elements $x,y,z$ in $\\hat H$ that get mapped to their counterparts in $H$ by this homomorphism. We give an action of Artin's braid group $B_3$ on $\\hat H$ that acts nicely on the elements $x,y,z$; one generator sends $x\\mapsto y\\mapsto z \\mapsto x$ and another generator interchanges $x,y$. Using the $B_3$ action we show that the elements $x,y,z$ in $\\hat H$ satisfy three equations that are essentially $Z_3$-symmetric Askey-Wilson r...

  12. ROOF CHARACTERISATION RELATED TO FIRE PROPAGATION RISK BY A NUMERICAL

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    ROOF CHARACTERISATION RELATED TO FIRE PROPAGATION RISK BY A NUMERICAL APPROACH L. Fournier1 , A by th roof: - one is th use of intumescent strips on th roof, - th other consists of extending th fire walls (typically 70 cm or 1 m) above th roof lev1 in order to prevent th flame from being blown

  13. Building-related risk factors and work-related lower respiratory symptoms in 80 office buildings

    SciTech Connect (OSTI)

    Mendell, M.J.; Naco, G.M.; Wilcox, T.G.; Sieber, W.K.

    2002-01-01T23:59:59.000Z

    We assessed building-related risk factors for lower respiratory symptoms in office workers. The National Institute for Occupational Safety and Health in 1993 collected data during indoor environmental health investigations of workplaces. We used multivariate logistic regression analyses to assess relationships between lower respiratory symptoms in office workers and risk factors plausibly related to microbiologic contamination. Among 2,435 occupants in 80 office buildings, frequent, work-related multiple lower respiratory symptoms were strongly associated, in multivariate models, with two risk factors for microbiologic contamination: poor pan drainage under cooling coils and debris in outside air intake. Associations tended to be stronger among those with a history of physician-diagnosed asthma. These findings suggest that adverse lower respiratory health effects from indoor work environments, although unusual, may occur in relation to poorly designed or maintained ventilation systems, particularly among previously diagnosed asthmatics. These findings require confirmation in more representative buildings.

  14. Methodology to identify risk-significant components for inservice inspection and testing

    SciTech Connect (OSTI)

    Anderson, M.T.; Hartley, R.S.; Jones, J.L. Jr.; Kido, C.; Phillips, J.H.

    1992-08-01T23:59:59.000Z

    Periodic inspection and testing of vital system components should be performed to ensure the safe and reliable operation of Department of Energy (DOE) nuclear processing facilities. Probabilistic techniques may be used to help identify and rank components by their relative risk. A risk-based ranking would allow varied DOE sites to implement inspection and testing programs in an effective and cost-efficient manner. This report describes a methodology that can be used to rank components, while addressing multiple risk issues.

  15. PageRank of integers

    E-Print Network [OSTI]

    K. M. Frahm; A. D. Chepelianskii; D. L. Shepelyansky

    2012-05-29T23:59:59.000Z

    We build up a directed network tracing links from a given integer to its divisors and analyze the properties of the Google matrix of this network. The PageRank vector of this matrix is computed numerically and it is shown that its probability is inversely proportional to the PageRank index thus being similar to the Zipf law and the dependence established for the World Wide Web. The spectrum of the Google matrix of integers is characterized by a large gap and a relatively small number of nonzero eigenvalues. A simple semi-analytical expression for the PageRank of integers is derived that allows to find this vector for matrices of billion size. This network provides a new PageRank order of integers.

  16. Ranking species in mutualistic networks

    E-Print Network [OSTI]

    Domnguez-Garca, Virginia

    2015-01-01T23:59:59.000Z

    Understanding the architectural subtleties of ecological networks, believed to confer them enhanced stability and robustness, is a subject of outmost relevance. Mutualistic interactions have been profusely studied and their corresponding bipartite networks, such as plant-pollinator networks, have been reported to exhibit a characteristic "nested" structure. Assessing the importance of any given species in mutualistic networks is a key task when evaluating extinction risks and possible cascade effects. Inspired in a recently introduced algorithm --similar in spirit to Google's PageRank but with a built-in non-linearity-- here we propose a method which --by exploiting their nested architecture-- allows us to derive a sound ranking of species importance in mutualistic networks. This method clearly outperforms other existing ranking schemes and can become very useful for ecosystem management and biodiversity preservation, where decisions on what aspects of ecosystems to explicitly protect need to be made.

  17. Coal rank trends in eastern Kentucky

    SciTech Connect (OSTI)

    Hower, J.C.; Trinkle, E.J.

    1984-12-01T23:59:59.000Z

    Examination of coal rank (by vitrinite maximum reflectance) for eastern Kentucky coals has revealed several regional trends. Coal rank varies from high volatile C (0.5% R/sub max/) to medium volatile bituminous (1.1% R/sub max/), and generally increases to the southeast. One east-west-trending rank high and at least four north-south-trending rank highs interrupt the regional increase. The east-west-trending rank high is associated with the Kentucky River faults in northeastern Kentucky. It is the only rank high clearly associated with a fault zone. The four north-south-trending rank highs are parallel with portions of major tectonic features such as the Eastern Kentucky syncline. Overall, though, the association of north-south-trending rank highs with tectonic expression is not as marked as that with the anomaly associated with the Kentucky River faults. It is possible that the rank trends are related to basement features with subdued surface expression. Rank generally increases with depth, and regional trends observed in one coal are also seen in overlying and underlying coals. The cause of the regional southeastward increase in rank is likely to be the combined influence of greater depth of burial and proximity to late Paleozoic orogenic activity. The anomalous trends could be due to increased depth of burial, but are more likely to have resulted from tectonic activity along faults and basement discontinuities. The thermal disturbances necessary to increase the coal rank need not have been great, perhaps on the order of 10-20/sup 0/C (18-36/sup 0/F) above the metamorphic temperatures of the lower rank coals.

  18. A systematic approach for managing the risk related to semantic interoperability between geospatial datacubes

    E-Print Network [OSTI]

    A systematic approach for managing the risk related to semantic interoperability between geospatial in Geospatial Databases for Decision-Support tarek.sboui.1@ulaval.ca, mehrdad.salehi.1@ulaval.ca, yvan.bedard@scg.ulaval.ca Abstract Geospatial datacubes are the database backend of novel types of spatiotemporal decision- support

  19. Forestflood relation still tenuous comment on `Global evidence that deforestation amplifies flood risk and

    E-Print Network [OSTI]

    Chappell, Nick A

    Forest­flood relation still tenuous ­ comment on `Global evidence that deforestation amplifies cover change, and conclude that deforestation amplifies flood risk and severity in the developing world% of the variation in reported flood occurrences, considerably more than forest cover or deforestation (o10

  20. A multi-scale bone study to estimate the risk of fracture related to osteoporosis

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    A multi-scale bone study to estimate the risk of fracture related to osteoporosis Abdelwahed' Orlans, 8, Rue Lonard de Vinci 45072 Orlans, France Objective: Osteoporosis is a disease marked. Bone fractures caused by the osteoporosis become increasingly important goal for both clinicians

  1. Separability of the massive Dirac's equation in 5-dimensional Myers-Perry black hole geometry and its relation to a rank-three Killing-Yano tensor

    E-Print Network [OSTI]

    Shuang-Qing Wu

    2008-09-08T23:59:59.000Z

    The Dirac equation for the electron around a five-dimensional rotating black hole with two different angular momenta is separated into purely radial and purely angular equations. The general solution is expressed as a superposition of solutions derived from these two decoupled ordinary differential equations. By separating variables for the massive Klein-Gordon equation in the same space-time background, I derive a simple and elegant form for the Stackel-Killing tensor, which can be easily written as the square of a rank-three Killing-Yano tensor. I have also explicitly constructed a symmetry operator that commutes with the scalar Laplacian by using the Stackel-Killing tensor, and the one with the Dirac operator by the Killing-Yano tensor admitted by the five-dimensional Myers-Perry metric, respectively.

  2. Risk assessment in decision making related to land-use planning (LUP) as required by the Seveso II directive

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Risk assessment in decision making related to land-use planning (LUP) as required by the Seveso II the requirement of the Seveso II directive and an analysis of the use of LUP as part of a risk management policy management policy combining several tools. To describe the risk management policy implemented in France

  3. Relative risk site evaluation for buildings 7740 and 7741 Fort Campbell, Kentucky

    SciTech Connect (OSTI)

    Last, G.V.; Gilmore, T.J.; Bronson, F.J.

    1998-01-01T23:59:59.000Z

    Buildings 7740 and 7741 are a part of a former nuclear weapon`s storage and maintenance facility located in the southeastern portion of Fort Campbell, Kentucky. This underground tunnel complex was originally used as a classified storage area beginning in 1949 and continuing until 1969. Staff from the Pacific Northwest National Laboratory recently completed a detailed Relative Risk Site Evaluation of the facility. This evaluation included (1) obtaining engineering drawings of the facility and associated structures, (2) conducting detailed radiological surveys, (3) air sampling, (4) sampling drainage systems, and (5) sampling the underground wastewater storage tank. Ten samples were submitted for laboratory analysis of radionuclides and priority pollutant metals, and two samples submitted for analysis of volatile organic compounds. No volatile organic contaminants were detected using field instruments or laboratory analyses. However, several radionuclides and metals were detected in water and/or soil/sediment samples collected from this facility. Of the radionuclides detected, only {sup 226}Ra may have come from facility operations; however, its concentration is at least one order of magnitude below the relative-risk comparison value. Several metals (arsenic, beryllium, cadmium, copper, mercury, lead, and antimony) were found to exceed the relative-risk comparison values for water, while only arsenic, cadmium, and lead were found to exceed the relative risk comparison values for soil. Of these constituents, it is believed that only arsenic, beryllium, mercury, and lead may have come from facility operations. Other significant hazards posed by the tunnel complex include radon exposure and potentially low oxygen concentrations (<19.5% in atmosphere) if the tunnel complex is not allowed to vent to the outside air. Asbestos-wrapped pipes, lead-based paint, rat poison, and possibly a selenium rectifier are also present within the tunnel complex.

  4. Analysis of Wet Weather Related Collision Concentration Locations: Empirical Assessment of Continuous Risk Profile

    E-Print Network [OSTI]

    Oh, Soonmi; Chung, Koohong; Ragland, David R; Chan, Ching-Yao

    2009-01-01T23:59:59.000Z

    of Continuous Risk Profile Submission Date: November 15,The Continuous Risk Profile Approach for the Identificationby the Continuous Risk Profile (CRP) approach and the safety

  5. Guide to journal rankings 1. What are journal rankings?

    E-Print Network [OSTI]

    McCusker, Guy

    Opus Guide to journal rankings 1. What are journal rankings? Journal rankings are metrics that provide information on how a journal performs in comparison with other journals in the same discipline. Articles in high impact journals are more likely to be cited. Good citation counts are often considered

  6. Qualitative risk evaluation of environmental restoration programs at Brookhaven National Laboratory

    SciTech Connect (OSTI)

    Morris, S.C.

    1996-05-01T23:59:59.000Z

    This report documents the evaluation of risks associated with environmental restoration activities at Brookhaven National Laboratory using two tools supplied by DOE to provide a consistent set of risk estimates across the DOE complex: Risk Data Sheets (RDS) and Relative Risk Ranking. The tools are described, the process taken characterized, results provided and discussed. The two approaches are compared and recommendations provided for continuing improvement of the process.

  7. Method of assessing a lipid-related health risk based on ion mobility analysis of lipoproteins

    DOE Patents [OSTI]

    Benner, W. Henry (Danville, CA); Krauss, Ronald M. (Berkeley, CA); Blanche, Patricia J. (Berkeley, CA)

    2010-12-14T23:59:59.000Z

    A medical diagnostic method and instrumentation system for analyzing noncovalently bonded agglomerated biological particles is described. The method and system comprises: a method of preparation for the biological particles; an electrospray generator; an alpha particle radiation source; a differential mobility analyzer; a particle counter; and data acquisition and analysis means. The medical device is useful for the assessment of human diseases, such as cardiac disease risk and hyperlipidemia, by rapid quantitative analysis of lipoprotein fraction densities. Initially, purification procedures are described to reduce an initial blood sample to an analytical input to the instrument. The measured sizes from the analytical sample are correlated with densities, resulting in a spectrum of lipoprotein densities. The lipoprotein density distribution can then be used to characterize cardiac and other lipid-related health risks.

  8. Link Analysis Ranking Algorithms, Theory, and Experiments #

    E-Print Network [OSTI]

    Rosenthal, Jeffrey S.

    and the widespread accessibility of the Web has led to surge of research activity in the area of information retrieval on the World Wide Web. The seminal papers of Kleinberg [31], and Brin and Page [9] introduced Link Analysis Ranking, where hyperlink structures are used to determine the relative authority of a Web page

  9. Low-rank coal research

    SciTech Connect (OSTI)

    Weber, G. F.; Laudal, D. L.

    1989-01-01T23:59:59.000Z

    This work is a compilation of reports on ongoing research at the University of North Dakota. Topics include: Control Technology and Coal Preparation Research (SO{sub x}/NO{sub x} control, waste management), Advanced Research and Technology Development (turbine combustion phenomena, combustion inorganic transformation, coal/char reactivity, liquefaction reactivity of low-rank coals, gasification ash and slag characterization, fine particulate emissions), Combustion Research (fluidized bed combustion, beneficiation of low-rank coals, combustion characterization of low-rank coal fuels, diesel utilization of low-rank coals), Liquefaction Research (low-rank coal direct liquefaction), and Gasification Research (hydrogen production from low-rank coals, advanced wastewater treatment, mild gasification, color and residual COD removal from Synfuel wastewaters, Great Plains Gasification Plant, gasifier optimization).

  10. Efficient and Secure Ranked Multi-Keyword Search on Encrypted Cloud Data

    E-Print Network [OSTI]

    Yanikoglu, Berrin

    Efficient and Secure Ranked Multi-Keyword Search on Encrypted Cloud Data Cengiz ?rencik Faculty and reveal information about sensitive search terms. A related protocol, Private Information Retrieval (PIR-preserving ranked keyword search scheme based on PIR that allows multi-keyword queries with rank- ing capability

  11. A Prospective Study of Blood Selenium Levels and the Risk of Arsenic-2 related Premalignant Skin Lesions3

    E-Print Network [OSTI]

    van Geen, Alexander

    1 1 A Prospective Study of Blood Selenium Levels and the Risk of Arsenic-2 related Premalignant-related premalignant skin lesions and prediagnostic blood Se levels in 30357 cases of skin lesions newly-diagnosed from in the Health Effects59 of As Longitudinal Study with available baseline blood and urine samples collected in60

  12. Astronomy Ranking Task: Stellar Evolution

    E-Print Network [OSTI]

    Farritor, Shane

    Cloud of Gas and Dust C Neutron Star I White Dwarf D Supernova Type II J Black Hole E Nothing K Supernova Type I F Giant L Nova M Gravity Collapse of Gas/Dust Cloud A) Ranking Instructions: Rank, from

  13. Criteria for risk decision-making process related to hazardous installation : a French experience

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    -use planning. The first part explains why the French risk assessment procedure is based on the quantitative evaluation of major accident scenarios with explicit criteria, and only on qualitative analysis of the risk risk assessment procedure is based on the quantitative evaluation of major accident scenarios

  14. Using population risk assessment as a basis for administrative decisions related to storage of irradiated nuclear fuel

    SciTech Connect (OSTI)

    Droppo, James G. [Pacific Northwest National Laboratory, PO Box 999, Richland WA 99352 (United States); Eremenko, V.A. [International Knowledge Bridge LLC (Russian Federation); Linde, J. [Association on Computer Technology and Informational Systems - ACTIS (Russian Federation); Shilova, E. [Moscow Institute of International Economic Relations, 76, Vernadsky av. 119454 Moscow (Russian Federation)

    2007-07-01T23:59:59.000Z

    Available in abstract form only. Full text of publication follows: Optimization of safety related decisions by local authorities could be improved using information on potential risks to a regional population. A joint Russia-US effort in 2001-2002 modeled potential population health risks for a proposed nuclear waste storage facility in northern Russia. Conducting such an assessment in addition to the standard PRA is proposed as an innovation in Russia aimed at better meeting the needs of local decision makers. This case-study analysis was conducted for the proposed facility to provide insights into potential population health risks. In the case study results, the background population risks from radiation accident exposures were very low compared to risks from chemical background exposures - an unexpected outcome for those that perceive any nuclear facility as very hazardous to the local population. The paper notes that rather than requiring a proposed low-risk facility for hazardous materials be made even safer, these results give the local authority the option of proposing a trade-off of having a major unrelated regional risks mitigated. The results show the value of conducting a population risk assessment in addition to a facility-oriented PRA as a means of better defining the potential impacts. (authors)

  15. Breast Cancer-Related Arm Lymphedema: Incidence Rates, Diagnostic Techniques, Optimal Management and Risk Reduction Strategies

    SciTech Connect (OSTI)

    Shah, Chirag [Department of Radiation Oncology, William Beaumont Hospital, Royal Oak, MI (United States); Vicini, Frank A., E-mail: fvicini@beaumont.edu [Department of Radiation Oncology, William Beaumont Hospital, Royal Oak, MI (United States)

    2011-11-15T23:59:59.000Z

    As more women survive breast cancer, long-term toxicities affecting their quality of life, such as lymphedema (LE) of the arm, gain importance. Although numerous studies have attempted to determine incidence rates, identify optimal diagnostic tests, enumerate efficacious treatment strategies and outline risk reduction guidelines for breast cancer-related lymphedema (BCRL), few groups have consistently agreed on any of these issues. As a result, standardized recommendations are still lacking. This review will summarize the latest data addressing all of these concerns in order to provide patients and health care providers with optimal, contemporary recommendations. Published incidence rates for BCRL vary substantially with a range of 2-65% based on surgical technique, axillary sampling method, radiation therapy fields treated, and the use of chemotherapy. Newer clinical assessment tools can potentially identify BCRL in patients with subclinical disease with prospective data suggesting that early diagnosis and management with noninvasive therapy can lead to excellent outcomes. Multiple therapies exist with treatments defined by the severity of BCRL present. Currently, the standard of care for BCRL in patients with significant LE is complex decongestive physiotherapy (CDP). Contemporary data also suggest that a multidisciplinary approach to the management of BCRL should begin prior to definitive treatment for breast cancer employing patient-specific surgical, radiation therapy, and chemotherapy paradigms that limit risks. Further, prospective clinical assessments before and after treatment should be employed to diagnose subclinical disease. In those patients who require aggressive locoregional management, prophylactic therapies and the use of CDP can help reduce the long-term sequelae of BCRL.

  16. Nuclear fuel cycle risk assessment: survey and computer compilation of risk-related literature. [Once-through Cycle and Plutonium Recycle

    SciTech Connect (OSTI)

    Yates, K.R.; Schreiber, A.M.; Rudolph, A.W.

    1982-10-01T23:59:59.000Z

    The US Nuclear Regulatory Commission has initiated the Fuel Cycle Risk Assessment Program to provide risk assessment methods for assistance in the regulatory process for nuclear fuel cycle facilities other than reactors. Both the once-through cycle and plutonium recycle are being considered. A previous report generated by this program defines and describes fuel cycle facilities, or elements, considered in the program. This report, the second from the program, describes the survey and computer compilation of fuel cycle risk-related literature. Sources of available information on the design, safety, and risk associated with the defined set of fuel cycle elements were searched and documents obtained were catalogued and characterized with respect to fuel cycle elements and specific risk/safety information. Both US and foreign surveys were conducted. Battelle's computer-based BASIS information management system was used to facilitate the establishment of the literature compilation. A complete listing of the literature compilation and several useful indexes are included. Future updates of the literature compilation will be published periodically. 760 annotated citations are included.

  17. Ranking Related News Predictions Nattiya Kanhabua

    E-Print Network [OSTI]

    Nørvåg, Kjetil

    world. These include the energy crisis, the global financial crisis, politics, health care, science, requires prior specif c permission and/or a fee. SIGIR'11, July 24­28, 2011, Beijing, China. Copyright 2011

  18. Evaluating ranking methods on heterogeneous digital library collections

    E-Print Network [OSTI]

    Canvet, Olivier; Marian, Ludmila; Chonavel, Thierry

    In the frame of research in particle physics, CERN has been developing its own web-based software /Invenio/ to run the digital library of all the documents related to CERN and fundamental physics. The documents (articles, photos, news, thesis, ...) can be retrieved through a search engine. The results matching the query of the user can be displayed in several ways: sorted by latest first, author, title and also ranked by word similarity. The purpose of this project is to study and implement a new ranking method in Invenio: distributed-ranking (D-Rank). This method aims at aggregating several ranking scores coming from different ranking methods into a new score. In addition to query-related scores such as word similarity, the goal of the work is to take into account non-query-related scores such as citations, journal impact factor and in particular scores related to the document access frequency in the database. The idea is that for two equally query-relevant documents, if one has been more downloaded for inst...

  19. alcohol-related injury risk: Topics by E-print Network

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

    activity in the ADRIA project concerns the performance of numerical simulations of the brain response to human head loading during car Verhoeve Bovendeerd Wismans 23 Risk...

  20. Analysis of Wet Weather Related Collision Concentration Locations: Empirical Assessment of Continuous Risk Profile

    E-Print Network [OSTI]

    Oh, Soonmi; Chung, Koohong; Ragland, David R; Chan, Ching-Yao

    2009-01-01T23:59:59.000Z

    Analysis of Wet Weather Related Collision ConcentrationThe CRP plot displays wet weather related collision profilefactors responsible for wet weather related collisions is

  1. Risk assessment of converting salt caverns to natural gas storage. Final report, November 1994-July 1995

    SciTech Connect (OSTI)

    Harrison, M.R.; Ellis, P.F.

    1995-10-01T23:59:59.000Z

    The objective of this paper was an assessment of the risks of release of large quantities of natural gas from salt caverns converted from other uses to the storage of compressed natural gas (CNG). A total of 22 potential root causes for large releases of natural gas from converted salt converns were identified and ranked in terms of relative risk. While this project assessed the relative risks of major gas releases, the absolute risk was determined by implication to be extremely low, as indicated by the historical record.

  2. asphyxia-related risk factors: Topics by E-print Network

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

    2010-01-01 44 Review Epidemiology, risk factors, and lifestyle modifications for gout CiteSeer Summary: Gout affects more than 1 % of adults in the USA, and it is the most...

  3. Assessing Risk and Driving Risk Mitigation for First-of-a-Kind Advanced Reactors

    SciTech Connect (OSTI)

    John W. Collins

    2011-09-01T23:59:59.000Z

    Planning and decision making amidst programmatic and technological risks represent significant challenges for projects. This presentation addresses the four step risk-assessment process needed to determine clear path forward to mature needed technology and design, license, and construct advanced nuclear power plants, which have never been built before, including Small Modular Reactors. This four step process has been carefully applied to the Next Generation Nuclear Plant. STEP 1 - Risk Identification Risks are identified, collected, and categorized as technical risks, programmatic risks, and project risks, each of which result in cost and schedule impacts if realized. These include risks arising from the use of technologies not previously demonstrated in a relevant application. These risks include normal and accident scenarios which the SMR could experience including events that cause the disablement of engineered safety features (typically documented in Phenomena Identification Ranking Tables (PIRT) as produced with the Nuclear Regulatory Commission) and design needs which must be addressed to further detail the design. Product - Project Risk Register contained in a database with sorting, presentation, rollup, risk work off functionality similar to the NGNP Risk Management System . STEP 2 - Risk Quantification The risks contained in the risk register are then scored for probability of occurrence and severity of consequence, if realized. Here the scoring methodology is established and the basis for the scoring is well documented. Product - Quantified project risk register with documented basis for scoring. STEP 3 - Risk Handling Strategy Risks are mitigated by applying a systematic approach to maturing the technology through Research and Development, modeling, test, and design. A Technology Readiness Assessment is performed to determine baseline Technology Readiness Levels (TRL). Tasks needed to mature the technology are developed and documented in a roadmap. Product - Risk Handling Strategy. STEP 4 - Residual Risk Work off The risk handling strategy is entered into the Project Risk Allocation Tool (PRAT) to analyze each task for its ability to reduce risk. The result is risk-informed task prioritization. The risk handling strategy is captured in the Risk Management System, a relational database that provides conventional database utility, including data maintenance, archiving, configuration control, and query ability. The tool's Hierarchy Tree allows visualization and analyses of complex relationships between risks, risk mitigation tasks, design needs, and PIRTs. Product - Project Risk Allocation Tool and Risk Management System which depict project plan to reduce risk and current progress in doing so.

  4. Robust Rankings for College Football

    E-Print Network [OSTI]

    2012-01-06T23:59:59.000Z

    Oct 11, 2011 ... tournament at the end of a season to determine the best team (or national champion). ?Department of Management Sciences, University of Iowa, Iowa City, IA, ... practice. One such method, which is one of six computer rankings used ...... inconsequential set I. One could also manually choose a completely...

  5. POLYTOPES OF MINIMUM POSITIVE SEMIDEFINITE RANK 1 ...

    E-Print Network [OSTI]

    2012-05-23T23:59:59.000Z

    M ? rank M. In Exam- ple 2.3 we saw that the first inequality may be strict. We now ..... Let Si denote the ith row of SP . Since rank SP = n+ 1, we have ? n+2.

  6. Indoor risk factors for cough and their relation to wheeze and sensitization in Chilean young adults

    SciTech Connect (OSTI)

    Potts, J.F.; Rona, R.J.; Oyarzun, M.J.; Amigo, H.; Bustos, P. [Kings College London, London (United Kingdom). Dept. for Public Health Science

    2008-04-15T23:59:59.000Z

    We assessed the effects of indoor risk factors, including smoking, on different types of cough and on cough and wheeze in combination. Our sample was composed of 1232 men and women residing in a semi-rural area of Chile. We used a standardized questionnaire, sensitization to 8 allergens, and bronchial hyperresponsiveness to methacholine to assess cough and wheeze characteristics. Information was gathered on dampness, mold, ventilation, heating, housing quality, smoking, and environmental tobacco smoke exposure. Most exposures were associated with cough alone or cough in combination with wheeze. Smoking, past smoking, and environmental tobacco smoke exposure were strongly associated with dry cough and wheeze. The use of coal for heating was associated with dry cough. Leaks, mold, and lack of kitchen ventilation were associated with cough and wheeze. Nocturnal cough and productive cough were associated with specific types of sensitization, but dry cough was not. Productive cough was associated with hyperresponsiveness to methacholine. Several different types of indoor exposures, including environmental tobacco smoke exposure, are important contributors to morbidity associated with cough and wheeze. A vigorous preventive strategy designed to lower exposures to indoor risk factors would lower rates of respiratory morbidity.

  7. Professor (Open Rank) Department of Nuclear, Plasma, and Radiological Engineering

    E-Print Network [OSTI]

    Ma, Yi

    Professor (Open Rank) Department of Nuclear, Plasma, and Radiological Engineering University of Illinois at Urbana-Champaign The Department of Nuclear, Plasma, and Radiological Engineering-qualified candidates with background in areas related to reactor power engineering and other nuclear applications

  8. Accounting for the Uncertainty in the Evaluation of Percentile Ranks

    E-Print Network [OSTI]

    Leydesdorff, Loet

    2012-01-01T23:59:59.000Z

    In a recent paper entitled "Inconsistencies of Recently Proposed Citation Impact Indicators and how to Avoid Them," Schreiber (2012, at arXiv:1202.3861) proposed (i) a method to assess tied ranks consistently and (ii) fractional attribution to percentile ranks in the case of relatively small samples (e.g., for n percentile rank classes used in the Science and Engineering Indicators of the U.S. National Science Board, and thus missed, in my opinion, the point that fractional attribution at the level of hundred percentiles-or equivalently quantiles as the continuous random variable-is only a linear, and therefore much less complex problem. Given the quantile-values, the non-linear a...

  9. RANK-SPARSITY INCOHERENCE FOR MATRIX DECOMPOSITION ...

    E-Print Network [OSTI]

    2009-06-11T23:59:59.000Z

    Jun 11, 2009 ... nuclear norm of the components. We develop a notion of rank-sparsity incoherence, expressed as an uncertainty principle between the sparsity...

  10. Sex Hormones Genotypes and Phenotypes and Determinants of Sex Hormone Binding Globulin in relation to Type 2 Diabetes Risk

    E-Print Network [OSTI]

    GOTO, ATSUSHI

    2012-01-01T23:59:59.000Z

    of diagnosed Type 2 diabetes in British men, 1978-2005.and Risk of Type 2 Diabetes in Postmenopausal Women: theHormone Pathways and Diabetes Risk among African-American,

  11. Top for economics Rank Business School

    E-Print Network [OSTI]

    Lin, Xiaodong

    Top for economics Rank Business School 1 University of Chicago: Booth Rutgers Business School University of Toronto: Rotman Cranfield School of Management University of California at Irvine: Merage University of Rochester: Simon Columbia/London Business School 2 3 4 5 6 7 8 9 10 Rank Business School 1

  12. (psd) rank of a nonnegative matrix w

    E-Print Network [OSTI]

    2013-05-20T23:59:59.000Z

    at least k and we pose the problem of deciding whether the psd rank is exactly k. Using geometry ... referred to as the psd rank of P) is exactly the smallest k such that P is the linear image of an ..... References. [1] J. Bochnak, M. Coste, M. Roy.

  13. Universal Emergence of PageRank

    E-Print Network [OSTI]

    K. M. Frahm; B. Georgeot; D. L. Shepelyansky

    2011-10-19T23:59:59.000Z

    The PageRank algorithm enables to rank the nodes of a network through a specific eigenvector of the Google matrix, using a damping parameter $\\alpha \\in ]0,1[$. Using extensive numerical simulations of large web networks, with a special accent on British University networks, we determine numerically and analytically the universal features of PageRank vector at its emergence when $\\alpha \\rightarrow 1$. The whole network can be divided into a core part and a group of invariant subspaces. For $ \\alpha \\rightarrow 1$ the PageRank converges to a universal power law distribution on the invariant subspaces whose size distribution also follows a universal power law. The convergence of PageRank at $ \\alpha \\rightarrow 1$ is controlled by eigenvalues of the core part of the Google matrix which are extremely close to unity leading to large relaxation times as for example in spin glasses.

  14. Ranking Outlier Nodes in Subspaces of Attributed Graphs

    E-Print Network [OSTI]

    Antwerpen, Universiteit

    . Our graph outlier ranking (GOutRank) introduces scoring functions based on these selected subgraphs by looking at the most promising objects first. They 1http://www.ipd.kit.edu/~muellere/GOutRank/ allow users

  15. Building-related symptoms among U.S. office workers and risks factors for moisture and contamination: Preliminary analyses of U.S. EPA BASE Data

    SciTech Connect (OSTI)

    Mendell, Mark J.; Cozen, Myrna

    2002-09-01T23:59:59.000Z

    The authors assessed relationships between health symptoms in office workers and risk factors related to moisture and contamination, using data collected from a representative sample of U.S. office buildings in the U.S. EPA BASE study. Methods: Analyses assessed associations between three types of weekly, workrelated symptoms-lower respiratory, mucous membrane, and neurologic-and risk factors for moisture or contamination in these office buildings. Multivariate logistic regression models were used to estimate the strength of associations for these risk factors as odds ratios (ORs) adjusted for personal-level potential confounding variables related to demographics, health, job, and workspace. A number of risk factors were associated (e.g., 95% confidence limits excluded 1.0) significantly with small to moderate increases in one or more symptom outcomes. Significantly elevated ORs for mucous membrane symptoms were associated with the following risk factors: presence of humidification system in good condition versus none (OR = 1.4); air handler inspection annually versus daily (OR = 1.6); current water damage in the building (OR = 1.2); and less than daily vacuuming in study space (OR = 1.2). Significantly elevated ORs for lower respiratory symptoms were associated with: air handler inspection annually versus daily (OR = 2.0); air handler inspection less than daily but at least semi-annually (OR=1.6); less than daily cleaning of offices (1.7); and less than daily vacuuming of the study space (OR = 1.4). Only two statistically significant risk factors for neurologic symptoms were identified: presence of any humidification system versus none (OR = 1.3); and less than daily vacuuming of the study space (OR = 1.3). Dirty cooling coils, dirty or poorly draining drain pans, and standing water near outdoor air intakes, evaluated by inspection, were not identified as risk factors in these analyses, despite predictions based on previous findings elsewhere, except that very dirty cooling coils were associated with a nonsignificant increase in lower respiratory symptoms. These preliminary findings suggest that some factors that indicate risks for moisture or contamination in office buildings may have adverse effects on respiratory or neurologic health of office workers. More refined analyses are underway that will include these risk factors in simultaneous multivariate models along with additional risk factors that may be confounders, such as ventilation rate and indoor temperature. Future analyses will also use more refined metrics for both health outcomes and environmental risks, as well as assess risk in susceptible sub-groups.

  16. Cooperative measures to support the Indo-Pak Agreement Reducing Risk from Accidents Relating to Nuclear Weapons.

    SciTech Connect (OSTI)

    Mishra, Sitakanta; Ahmed, Mansoor

    2014-04-01T23:59:59.000Z

    In 2012, India and Pakistan reaffirmed the Agreement on Reducing the Risk from Accidents Relating to Nuclear Weapons. Despite a history of mutual animosity and persistent conflict between the two countries, this agreement derives strength from a few successful nuclear confidence building measures that have stood the test of time. It also rests on the hope that the region would be spared a nuclear holocaust from an accidental nuclear weapon detonation that might be misconstrued as a deliberate use of a weapon by the other side. This study brings together two emerging strategic analysts from South Asia to explore measures to support the Agreement and further develop cooperation around this critical issue. This study briefly dwells upon the strategic landscape of nuclear South Asia with the respective nuclear force management structures, doctrines, and postures of India and Pakistan. It outlines the measures in place for the physical protection and safety of nuclear warheads, nuclear materials, and command and control mechanisms in the two countries, and it goes on to identify the prominent, emerging challenges posed by the introduction of new weapon technologies and modernization of the respective strategic forces. This is followed by an analysis of the agreement itself leading up to a proposed framework for cooperative measures that might enhance the spirit and implementation of the agreement.

  17. Ranking of sabotage/tampering avoidance technology alternatives

    SciTech Connect (OSTI)

    Andrews, W.B.; Tabatabai, A.S.; Powers, T.B.; Daling, P.M.; Fecht, B.A.; Gore, B.F.; Overcast, T.D.; Rankin, W.R.; Schreiber, R.E.; Tawil, J.J.

    1986-01-01T23:59:59.000Z

    Pacific Northwest Laboratory conducted a study to evaluate alternatives to the design and operation of nuclear power plants, emphasizing a reduction of their vulnerability to sabotage. Estimates of core melt accident frequency during normal operations and from sabotage/tampering events were used to rank the alternatives. Core melt frequency for normal operations was estimated using sensitivity analysis of results of probabilistic risk assessments. Core melt frequency for sabotage/tampering was estimated by developing a model based on probabilistic risk analyses, historic data, engineering judgment, and safeguards analyses of plant locations where core melt events could be initiated. Results indicate the most effective alternatives focus on large areas of the plant, increase safety system redundancy, and reduce reliance on single locations for mitigation of transients. Less effective options focus on specific areas of the plant, reduce reliance on some plant areas for safe shutdown, and focus on less vulnerable targets.

  18. Optical ranked-order filtering using threshold decomposition

    DOE Patents [OSTI]

    Allebach, J.P.; Ochoa, E.; Sweeney, D.W.

    1987-10-09T23:59:59.000Z

    A hybrid optical/electronic system performs median filtering and related ranked-order operations using threshold decomposition to encode the image. Threshold decomposition transforms the nonlinear neighborhood ranking operation into a linear space-invariant filtering step followed by a point-to-point threshold comparison step. Spatial multiplexing allows parallel processing of all the threshold components as well as recombination by a second linear, space-invariant filtering step. An incoherent optical correlation system performs the linear filtering, using a magneto-optic spatial light modulator as the input device and a computer-generated hologram in the filter plane. Thresholding is done electronically. By adjusting the value of the threshold, the same architecture is used to perform median, minimum, and maximum filtering of images. A totally optical system is also disclosed. 3 figs.

  19. Optical ranked-order filtering using threshold decomposition

    DOE Patents [OSTI]

    Allebach, Jan P. (West Lafayette, IN); Ochoa, Ellen (Pleasanton, CA); Sweeney, Donald W. (Alamo, CA)

    1990-01-01T23:59:59.000Z

    A hybrid optical/electronic system performs median filtering and related ranked-order operations using threshold decomposition to encode the image. Threshold decomposition transforms the nonlinear neighborhood ranking operation into a linear space-invariant filtering step followed by a point-to-point threshold comparison step. Spatial multiplexing allows parallel processing of all the threshold components as well as recombination by a second linear, space-invariant filtering step. An incoherent optical correlation system performs the linear filtering, using a magneto-optic spatial light modulator as the input device and a computer-generated hologram in the filter plane. Thresholding is done electronically. By adjusting the value of the threshold, the same architecture is used to perform median, minimum, and maximum filtering of images. A totally optical system is also disclosed.

  20. Low-rank coal oil agglomeration

    DOE Patents [OSTI]

    Knudson, Curtis L. (Grand Forks, ND); Timpe, Ronald C. (Grand Forks, ND)

    1991-01-01T23:59:59.000Z

    A low-rank coal oil agglomeration process. High mineral content, a high ash content subbituminous coals are effectively agglomerated with a bridging oil which is partially water soluble and capable of entering the pore structure, and usually coal derived.

  1. Provable Low-Rank Tensor Recovery

    E-Print Network [OSTI]

    2014-02-26T23:59:59.000Z

    Feb 26, 2014 ... rank, which here we refer to as the sum-of-nuclear-norms (SNN), has been proposed in [23] and serves as a tractable measure of the tensor...

  2. Penalty Decomposition Methods for Rank Minimization ?

    E-Print Network [OSTI]

    2010-11-22T23:59:59.000Z

    Nov 22, 2010 ... In Section 2, we establish some technical results on a class of rank minimization ..... Without loss of generality, assume that {( Zk. X,. . Zk ...... Department of Electrical and Computer Engineering, University of Illinois, 2009.

  3. Maternal Vitamin D Status Related to Triacylglycerol in Early Pregnancy and Subsequent Risk for Adverse Pregnancy Outcomes

    E-Print Network [OSTI]

    Chan, Ka Ian

    2011-04-25T23:59:59.000Z

    Research has suggested roles of vitamin D in health beyond its action on calcium homeostasis and bone health. Recent studies revealed a high proportion of pregnant women having low vitamin D status. This may lead to increased risks for preeclampsia...

  4. Relationalism

    E-Print Network [OSTI]

    Edward Anderson

    2014-07-15T23:59:59.000Z

    This article contributes to the debate of the meaning of relationalism and background independence, which has remained of interest in theoretical physics from Newton versus Leibniz through to foundational issues for today's leading candidate theories of quantum gravity. I contrast and compose the substantially different Leibniz--Mach--Barbour (LMB) and Rovelli--Crane (RC) uses of the word `relational'. Leibniz advocated primary timelessness and Mach that `time is to be abstracted from change'. I consider 3 distinct viewpoints on Machian time: Barbour's, Rovelli's and my own. I provide four expansions on Barbour's taking configuration space to be primary: to (perhaps a weakened notion of) phase space, categorizing, perspecting and propositioning. Categorizing means considering not only object spaces but also the corresponding morphisms and then functors between such pairs. Perspecting means considering the set of subsystem perspectives; this is an arena in which the LMB and Rovelli approaches make contact. By propositioning, I mean considering the set of propositions about a physical (sub)system. I argue against categorization being more than a formal pre-requisite for quantization in general; however, perspecting is a categorical operation, and propositioning leads one to considering topoi, with Isham and Doering's work represents one possibility for a mathematically sharp implementation of propositioning. Further applications of this article are arguing for Ashtekar variables as being relational in LMB as well as just the usually-ascribed RC sense, relationalism versus supersymmetry, string theory and M-theory. The question of whether scale is relational is also considered, with quantum cosmology in mind.

  5. Low-rank coal oil agglomeration product and process

    DOE Patents [OSTI]

    Knudson, Curtis L. (Grand Forks, ND); Timpe, Ronald C. (Grand Forks, ND); Potas, Todd A. (Plymouth, MN); DeWall, Raymond A. (Grand Forks, ND); Musich, Mark A. (Grand Forks, ND)

    1992-01-01T23:59:59.000Z

    A selectively-sized, raw, low-rank coal is processed to produce a low ash and relative water-free agglomerate with an enhanced heating value and a hardness sufficient to produce a non-decrepitating, shippable fuel. The low-rank coal is treated, under high shear conditions, in the first stage to cause ash reduction and subsequent surface modification which is necessary to facilitate agglomerate formation. In the second stage the treated low-rank coal is contacted with bridging and binding oils under low shear conditions to produce agglomerates of selected size. The bridging and binding oils may be coal or petroleum derived. The process incorporates a thermal deoiling step whereby the bridging oil may be completely or partially recovered from the agglomerate; whereas, partial recovery of the bridging oil functions to leave as an agglomerate binder, the heavy constituents of the bridging oil. The recovered oil is suitable for recycling to the agglomeration step or can serve as a value-added product.

  6. Low-rank coal oil agglomeration product and process

    DOE Patents [OSTI]

    Knudson, C.L.; Timpe, R.C.; Potas, T.A.; DeWall, R.A.; Musich, M.A.

    1992-11-10T23:59:59.000Z

    A selectively-sized, raw, low-rank coal is processed to produce a low ash and relative water-free agglomerate with an enhanced heating value and a hardness sufficient to produce a non-degradable, shippable fuel. The low-rank coal is treated, under high shear conditions, in the first stage to cause ash reduction and subsequent surface modification which is necessary to facilitate agglomerate formation. In the second stage the treated low-rank coal is contacted with bridging and binding oils under low shear conditions to produce agglomerates of selected size. The bridging and binding oils may be coal or petroleum derived. The process incorporates a thermal deoiling step whereby the bridging oil may be completely or partially recovered from the agglomerate; whereas, partial recovery of the bridging oil functions to leave as an agglomerate binder, the heavy constituents of the bridging oil. The recovered oil is suitable for recycling to the agglomeration step or can serve as a value-added product.

  7. NGNP Risk Management Database: A Model for Managing Risk

    SciTech Connect (OSTI)

    John Collins; John M. Beck

    2011-11-01T23:59:59.000Z

    The Next Generation Nuclear Plant (NGNP) Risk Management System (RMS) is a database used to maintain the project risk register. The RMS also maps risk reduction activities to specific identified risks. Further functionality of the RMS includes mapping reactor suppliers Design Data Needs (DDNs) to risk reduction tasks and mapping Phenomena Identification Ranking Table (PIRTs) to associated risks. This document outlines the basic instructions on how to use the RMS. This document constitutes Revision 1 of the NGNP Risk Management Database: A Model for Managing Risk. It incorporates the latest enhancements to the RMS. The enhancements include six new custom views of risk data - Impact/Consequence, Tasks by Project Phase, Tasks by Status, Tasks by Project Phase/Status, Tasks by Impact/WBS, and Tasks by Phase/Impact/WBS.

  8. A total risk assessment methodology for security assessment.

    SciTech Connect (OSTI)

    Aguilar, Richard; Pless, Daniel J.; Kaplan, Paul Garry; Silva, Consuelo Juanita; Rhea, Ronald Edward; Wyss, Gregory Dane; Conrad, Stephen Hamilton

    2009-06-01T23:59:59.000Z

    Sandia National Laboratories performed a two-year Laboratory Directed Research and Development project to develop a new collaborative risk assessment method to enable decision makers to fully consider the interrelationships between threat, vulnerability, and consequence. A five-step Total Risk Assessment Methodology was developed to enable interdisciplinary collaborative risk assessment by experts from these disciplines. The objective of this process is promote effective risk management by enabling analysts to identify scenarios that are simultaneously achievable by an adversary, desirable to the adversary, and of concern to the system owner or to society. The basic steps are risk identification, collaborative scenario refinement and evaluation, scenario cohort identification and risk ranking, threat chain mitigation analysis, and residual risk assessment. The method is highly iterative, especially with regard to scenario refinement and evaluation. The Total Risk Assessment Methodology includes objective consideration of relative attack likelihood instead of subjective expert judgment. The 'probability of attack' is not computed, but the relative likelihood for each scenario is assessed through identifying and analyzing scenario cohort groups, which are groups of scenarios with comparable qualities to the scenario being analyzed at both this and other targets. Scenarios for the target under consideration and other targets are placed into cohort groups under an established ranking process that reflects the following three factors: known targeting, achievable consequences, and the resources required for an adversary to have a high likelihood of success. The development of these target cohort groups implements, mathematically, the idea that adversaries are actively choosing among possible attack scenarios and avoiding scenarios that would be significantly suboptimal to their objectives. An adversary who can choose among only a few comparable targets and scenarios (a small comparable target cohort group) is more likely to choose to attack the specific target under analysis because he perceives it to be a relatively unique attack opportunity. The opposite is also true. Thus, total risk is related to the number of targets that exist in each scenario cohort group. This paper describes the Total Risk Assessment Methodology and illustrates it through an example.

  9. Low-rank coal oil agglomeration

    DOE Patents [OSTI]

    Knudson, C.L.; Timpe, R.C.

    1991-07-16T23:59:59.000Z

    A low-rank coal oil agglomeration process is described. High mineral content, a high ash content subbituminous coals are effectively agglomerated with a bridging oil which is partially water soluble and capable of entering the pore structure, and is usually coal-derived.

  10. Computational Enhancements in Low-Rank Semidefinite ...

    E-Print Network [OSTI]

    2004-07-12T23:59:59.000Z

    Jul 12, 2004 ... ?Department of Management Sciences, University of Iowa, Iowa City, .... Moreover, it has been observed in practice that the ... do not suggest that one particular version of the low-rank algorithm is best for all problem ...... Scientific Library Reference Manual, second edition. http://www.gnu.org/software/.

  11. Rank Project Name Directorate, Dept/Div

    E-Print Network [OSTI]

    ,370.00 0.32 72 ft3 solid rad waste; 35 gal of mixed waste; 108 gal of haz waste; 324 ft3 of rad DIS waste 6Rank Project Name Directorate, Dept/Div and POC Cost Savings Payback (Years) Waste Reduction 1 waste 2 Replacement of Mercury Thermometers Basic Energy Sciences, Condensed Matter Physics & Material

  12. The generating rank of the symplectic grassmannians

    E-Print Network [OSTI]

    Blok, Rieuwert J.

    . Blok Department of Mathematics and Statistics Bowling Green State University Bowling Green, OH 43403 U and Statistics Bowling Green State University Bowling Green, OH 43403 Tel.: +1 (419) 372-7455 FAX : +1 (419) 372, the generating rank of a geometry equals the dimension of the universal embedding of that geometry, if it exists

  13. Rank Project Name Directorate, Dept/Div

    E-Print Network [OSTI]

    waste 2 Motion Lights Energy Sciences & Technology, EENS (Dave Elling) $3,200 $7,000.00 0.46 Energy Light Source, NSLS (John Aloi) $1,500 $5,200.00 0.29 200 gallons corrosive waste 6 Electronic RecyclingRank Project Name Directorate, Dept/Div and POC Cost Savings Payback (Years) Waste Reduction 1

  14. Evaluation and Ranking of Geothermal Resources for Electrical Generation or Electrical Offset in Idaho, Montana, Oregon and Washington. Volume II.

    SciTech Connect (OSTI)

    Bloomquist, R. Gordon

    1985-06-01T23:59:59.000Z

    This volume contains appendices on: (1) resource assessment - electrical generation computer results; (2) resource assessment summary - direct use computer results; (3) electrical generation (high temperature) resource assessment computer program listing; (4) direct utilization (low temperature) resource assessment computer program listing; (5) electrical generation computer program CENTPLANT and related documentation; (6) electrical generation computer program WELLHEAD and related documentation; (7) direct utilization computer program HEATPLAN and related documentation; (8) electrical generation ranking computer program GEORANK and related documentation; (9) direct utilization ranking computer program GEORANK and related documentation; and (10) life cycle cost analysis computer program and related documentation. (ACR)

  15. HPGMG 1.0: A Benchmark for Ranking High Performance Computing Systems

    E-Print Network [OSTI]

    Adams, Mark

    2014-01-01T23:59:59.000Z

    for Ranking High Performance Computing Systems Mark F. Adamsmetric for ranking high performance computing systems. HPLmetric for ranking high performance computing systems. When

  16. Quantifier rank spectrum of L-infinity-omega

    E-Print Network [OSTI]

    Ackerman, Nathaniel Leedom

    2006-01-01T23:59:59.000Z

    In Part A we will study the quantifier rank spectrum of sentences of L!1,!. We will show that there are scattered sentences with models of arbitrarily high but bounded quantifier rank. We will also consider the case of ...

  17. Graded Relevance Ranking for Synonym Discovery Andrew Yates

    E-Print Network [OSTI]

    the pointwise mutual information (PMI) between the 16-term windows that a given pair of terms appear in. When used to rank synonym candidates, this method ranks them by the PMI between a target term and each

  18. Global Climate & Catastrophic Risk

    E-Print Network [OSTI]

    de Lijser, Peter

    Global Climate & Catastrophic Risk Forum 2012 A Joint Program with LA RIMS Education Day Rethinking Catastrophic Risk in Risk Management: Earthquake-Related Challenges Featuring: Keynote Speaker Dr. Frank Beuthin, Willis Group Holdings Plc. Yohei Miyamoto, Aon Risk Solutions Curtis deVera, Marsh

  19. Rank-Based Estimation for GARCH Processes Beth Andrews

    E-Print Network [OSTI]

    Andrews, Beth

    Rank-Based Estimation for GARCH Processes Beth Andrews Northwestern University September 7, 2011 Abstract We consider a rank-based technique for estimating GARCH model parameters, some of which are scale transformations of conventional GARCH parameters. The estimators are obtained by minimizing a rank-based residual

  20. CORRELATION AND DEPENDENCY IN RISK MANAGEMENT: PROPERTIES AND PITFALLS

    E-Print Network [OSTI]

    McNeil, Alexander J.

    CORRELATION AND DEPENDENCY IN RISK MANAGEMENT: PROPERTIES AND PITFALLS PAUL EMBRECHTS, ALEXANDER MCNEIL, AND DANIEL STRAUMANN Abstract. Modern risk management calls for an understanding of stochastic de dependence concepts like comonotonicity and rank correlation should also be understood by the risk management

  1. Predicting the risk of extinction from shared ecological characteristics

    E-Print Network [OSTI]

    Kotiaho, Janne S.

    an ecological extinction risk rank and predicted which of the currently nonthreatened species are at the highest risk of extinction. Our analysis reveals that two species currently classified as nonthreatened are, in fact, at high risk of extinction, and that the status of a further five species should be reconsidered

  2. One-dimensional Brownian particle systems with rank dependent drifts

    E-Print Network [OSTI]

    Pal, Soumik

    2007-01-01T23:59:59.000Z

    We study interacting systems of linear Brownian motions whose drift vector at every time point is determined by the relative ranks of the coordinate processes at that time. Our main objective has been to study the long range behavior of the spacings between the particles in increasing order. For finite systems, we characterize drifts for which the spacing system remains stable, and show its convergence to a unique stationary joint distribution given by independent exponential distributions with varying means. We also study one particular countably infinite system, where only the minimum Brownian particle gets a constant upward drift, and prove that independent and identically distributed exponential spacings remain stationary under the dynamics of such a process. Some related conjectures in this direction have also been discussed.

  3. Structure, constitution and utilization of low rank Indian coal

    SciTech Connect (OSTI)

    Iyengar, M.S.; Iyengar, V.A. [M.S. Iyengar and Associates, New Delhi (India)

    1996-12-31T23:59:59.000Z

    This paper briefly reviews the work done on lignite and sub-bituminous coals. Surface area and moisture adsorption dependency on functional group is described. The role of hydrogen bonding in the briquetting of lignite and of alkyl groups in inducing caking properties are discussed. The dualistic behavior of abnormal coals as both a low and high rank coal is also discussed in relation to the nature of their sulphur groups. On the utilization side, processes are described for: (1) Utilization of non-caking coal in the reduction of iron ore. Coal is first briquetted using a lime-tar binder. It is then carbonized for reducing iron ore. The bar is recovered and recycled. (2) Production of carbon black from low rank coals. In this process, coal is carbonized at high temperature in a fluidized bed. Carbon black, for tire industry, is obtained with char as by-product. (3) Utilization of flue gases of industry is also discussed. In this new approach, the flue gas is reduced to synthesis gas by additional fuel and the inevitable surplus heat. The viability of the process is illustrated by details of a recent study in a cement plant. In addition to the above, the implication of recycling flue gas in automobile engines to make them more environment friendly and cost effective, is also discussed.

  4. Low-rank coal study: national needs for resource development. Volume 3. Technology evaluation

    SciTech Connect (OSTI)

    Not Available

    1980-11-01T23:59:59.000Z

    Technologies applicable to the development and use of low-rank coals are analyzed in order to identify specific needs for research, development, and demonstration (RD and D). Major sections of the report address the following technologies: extraction; transportation; preparation, handling and storage; conventional combustion and environmental control technology; gasification; liquefaction; and pyrolysis. Each of these sections contains an introduction and summary of the key issues with regard to subbituminous coal and lignite; description of all relevant technology, both existing and under development; a description of related environmental control technology; an evaluation of the effects of low-rank coal properties on the technology; and summaries of current commercial status of the technology and/or current RD and D projects relevant to low-rank coals.

  5. Low-rank coal study. Volume 5. RD and D program evaluation

    SciTech Connect (OSTI)

    Not Available

    1980-11-01T23:59:59.000Z

    A national program is recommended for research, development, and demonstration (RD and D) of improved technologies for the enviromentally acceptable use of low-rank coals. RD and D project recommendations are outlined in all applicable technology areas, including extraction, transportation, preparation, handling and storage, conventional combustion and environmental control technology, fluidized bed combustion, gasification, liquefaction, and pyrolysis. Basic research topics are identified separately, as well as a series of crosscutting research activities addressing environmental, economic, and regulatory issues. The recommended RD and D activities are classified into Priority I and Priority II categories, reflecting their relative urgency and potential impact on the advancement of low-rank coal development. Summaries of ongoing research projects on low-rank coals in the US are presented in an Appendix, and the relationships of these ongoing efforts to the recommended RD and D program are discussed.

  6. Bulk power risk analysis : ranking infrastructure elements according to their risk significance

    E-Print Network [OSTI]

    Koonce, Anthony M

    2006-01-01T23:59:59.000Z

    Disruptions in the bulk power grid can result in very diverse consequences that include economic, social, physical, and psychological impacts. In addition, power outages do not affect all end-users of the system in the ...

  7. Ranking forestry journals using the h-index

    E-Print Network [OSTI]

    Vanclay, Jerome K

    2007-01-01T23:59:59.000Z

    An expert ranking of forestry journals was compared with journal impact factors and h-indices computed from ISI and internet-based data. Citations reported by Google Scholar appear to offer the most efficient way to rank all journals objectively, in a manner consistent with other indicators. A ranking of 180 forestry journals is presented, on the basis of an h-index computed from data supplied by Google Scholar.

  8. Proceedings of the sixteenth biennial low-rank fuels symposium

    SciTech Connect (OSTI)

    Not Available

    1991-01-01T23:59:59.000Z

    Low-rank coals represent a major energy resource for the world. The Low-Rank Fuels Symposium, building on the traditions established by the Lignite Symposium, focuses on the key opportunities for this resource. This conference offers a forum for leaders from industry, government, and academia to gather to share current information on the opportunities represented by low-rank coals. In the United States and throughout the world, the utility industry is the primary user of low-rank coals. As such, current experiences and future opportunities for new technologies in this industry were the primary focuses of the symposium.

  9. Optimization Online - Guaranteed Minimum-Rank Solutions of ...

    E-Print Network [OSTI]

    Benjamin Recht

    2007-06-28T23:59:59.000Z

    Jun 28, 2007 ... Guaranteed Minimum-Rank Solutions of Linear Matrix Equations via Nuclear Norm Minimization. Benjamin Recht(brecht ***at*** caltech.edu)

  10. ALGEBRAS OF REAL RANK ZERO M. Dadarlat and G. Gong

    E-Print Network [OSTI]

    1997-08-11T23:59:59.000Z

    A sweeping conjecture of Elliott asserts that the simple nuclear C*-algebras ... The results available so far suggest that the nuclear C*-algebras of real rank.

  11. Optimization Online - Sufficient Conditions for Low-rank Matrix ...

    E-Print Network [OSTI]

    Lingchen Kong

    2011-06-15T23:59:59.000Z

    Jun 15, 2011 ... This class of optimization problems is $NP$-hard and a popular approach replaces the rank function with the nuclear norm of the matrix...

  12. Finding approximately rank-one submatrices with the nuclear norm ...

    E-Print Network [OSTI]

    2010-11-08T23:59:59.000Z

    We propose a convex optimization formulation with the nuclear norm and l1-norm to find a large approximately rank-one submatrix of a given nonnegative matrix...

  13. Finding approximately rank-one submatrices with the nuclear norm ...

    E-Print Network [OSTI]

    Xuan Vinh Doan

    2010-11-08T23:59:59.000Z

    Nov 8, 2010 ... Abstract: We propose a convex optimization formulation with the nuclear norm and $\\ell_1$-norm to find a large approximately rank-one...

  14. RECOVERING LOW-RANK AND SPARSE COMPONENTS OF ...

    E-Print Network [OSTI]

    2009-12-31T23:59:59.000Z

    Dec 31, 2009 ... a convex relaxation problem where the widely-acknowledged nuclear norm and l1 norm are utilized to induce low-rank and sparsity.

  15. SUFFICIENT CONDITIONS FOR LOW-RANK MATRIX RECOVERY ...

    E-Print Network [OSTI]

    2011-06-15T23:59:59.000Z

    Jun 15, 2011 ... is -hard and a popular approach replaces the rank function with the nuclear norm of the matrix variable. In this paper, we extend the...

  16. SPARSE AND LOW-RANK MATRIX DECOMPOSITION VIA ...

    E-Print Network [OSTI]

    2009-10-04T23:59:59.000Z

    relaxation problem where the l1 norm and the nuclear norm are utilized for being surrogates of the sparsity and low-rank. Numerically, this convex relaxation...

  17. Lowest-rank Solutions of Continuous and Discrete Lyapunov ...

    E-Print Network [OSTI]

    Ziyan Luo

    2012-10-09T23:59:59.000Z

    Oct 9, 2012 ... Abstract: The low-rank solutions of continuous and discrete Lyapunov equations are of great importance but generally difficult to achieve in...

  18. CO2 Sequestration Potential of Texas Low-Rank Coals

    SciTech Connect (OSTI)

    Duane A. McVay; Walter B. Ayers, Jr; Jerry L. Jensen

    2006-05-01T23:59:59.000Z

    The objectives of this project are to evaluate the feasibility of carbon dioxide (CO{sub 2}) sequestration in Texas low-rank coals and to determine the potential for enhanced coalbed methane (ECBM) recovery as an added benefit of sequestration. The main objectives for this reporting period were to (1) determine the effects of permeability anisotropy on performance of CO{sub 2} sequestration and ECBM production in the Lower Calvert Bluff Formation (LCB) of the Wilcox Group coals in east-central Texas, and (2) begin reservoir and economic analyses of CO{sub 2} sequestration and ECBM production using horizontal wells. To evaluate the effects of permeability anisotropy on CO{sub 2} sequestration and ECBM in LCB coal beds, we conducted deterministic reservoir modeling studies of 100% CO{sub 2} gas injection for the 6,200-ft depth base case (Case 1b) using the most likely values of the reservoir parameters. Simulation results show significant differences in the cumulative volumes of CH{sub 4} produced and CO{sub 2} injected due to permeability anisotropy, depending on the orientation of injection patterns relative to the orientation of permeability anisotropy. This indicates that knowledge of the magnitude and orientation of permeability anisotropy will be an important consideration in the design of CO{sub 2} sequestration and ECBM projects. We continued discussions with Anadarko Petroleum regarding plans for additional coal core acquisition and laboratory work to further characterize Wilcox low-rank coals. As part of the technology transfer for this project, we submitted the paper SPE 100584 for presentation at the 2006 SPE Gas Technology Symposium to be held in Calgary, Alberta, Canada on May 15-18, 2006.

  19. Coal rank trends in western Kentucky coal field and relationship to hydrocarbon occurrence

    SciTech Connect (OSTI)

    Hower, J.C.; Rimmer, S.M.; Williams, D.A.; Beard, J.G. (Univ. of Kentucky, Lexington (USA))

    1989-09-01T23:59:59.000Z

    Extensive oil and gas development has occurred in the high volatile C bituminous region north of the Rough Creek fault zone, but few pools are known within the Webster syncline south of the fault zone. The rank of the Middle Pennsylvanian coals can be used to estimate the level of maturation of the Devonian New Albany Shale, a likely source rock for much of the oil and gas in the coal field. Based on relatively few data points, previous studies on the maturation of the New Albany Shale, which lies about 1 km below the Springfield coal, indicate an equivalent medium volatile bituminous (1.0-1.2% R{sub max}) rank in the Fluorspar district. New Albany rank decreases to an equivalent high volatile B/C (0.6% R{sub max}) north of the Rough Creek fault zone. Whereas the shale in the latter region is situated within the oil generation window, the higher rank region is past the peak of the level of maturation of the New Albany Shale. The significance of the New Albany reflectancy is dependent on the suppression of vitrinite reflectance in organic-rich shales. The possibility of reflectance suppression would imply that the shales could be more mature than studies have indicated.

  20. Chemical comminution and deashing of low-rank coals

    DOE Patents [OSTI]

    Quigley, David R.

    1992-12-01T23:59:59.000Z

    A method of chemically comminuting a low-rank coal while at the same time increasing the heating value of the coal. A strong alkali solution is added to a low-rank coal to solubilize the carbonaceous portion of the coal, leaving behind the noncarbonaceous mineral matter portion. The solubilized coal is precipitated from solution by a multivalent cation, preferably calcium.

  1. Chemical comminution and deashing of low-rank coals

    DOE Patents [OSTI]

    Quigley, David R. (Idaho Falls, ID)

    1992-01-01T23:59:59.000Z

    A method of chemically comminuting a low-rank coal while at the same time increasing the heating value of the coal. A strong alkali solution is added to a low-rank coal to solubilize the carbonaceous portion of the coal, leaving behind the noncarbonaceous mineral matter portion. The solubilized coal is precipitated from solution by a multivalent cation, preferably calcium.

  2. KALMAN'S CONTROLLABILITY RANK CONDITION: FROM LINEAR TO NONLINEAR \\Lambda

    E-Print Network [OSTI]

    Sontag, Eduardo

    KALMAN'S CONTROLLABILITY RANK CONDITION: FROM LINEAR TO NONLINEAR \\Lambda Eduardo D. Sontag y SYCON was identified by Kalman as one of the cen tral properties determining system behavior. His simple rank assumptions were needed in establishing results on optimal control. However, it was not until Kalman's work

  3. KALMAN'S CONTROLLABILITY RANK CONDITION: FROM LINEAR TO NONLINEAR

    E-Print Network [OSTI]

    Sontag, Eduardo

    KALMAN'S CONTROLLABILITY RANK CONDITION: FROM LINEAR TO NONLINEAR Eduardo D. Sontag SYCON was identified by Kalman as one of the cen- tral properties determining system behavior. His simple rank assumptions were needed in establishing results on optimal control. However, it was not until Kalman's work

  4. Distribution of ranks of ?-decay half-lives

    E-Print Network [OSTI]

    Juan Miguel Campanario

    2010-11-21T23:59:59.000Z

    I studied the distribution of ranks of values of 2949 {\\beta}-decay half-lives according to an empirical beta law with two exponents. {\\beta}-decay half-life ranks showed good fit to a beta function with two exponents.

  5. A fast, constantorder, symbol ranking text Peter Fenwick

    E-Print Network [OSTI]

    Fenwick, Peter

    capable of efficient hardware implementation. The compressor is based on a conventional setA fast, constant­order, symbol ranking text compressor Peter Fenwick Technical Report 145 ISSN 1173, New Zealand peter­f@cs.auckland.ac.nz Abstract Recent work on ``symbol ranking'' text compressors

  6. SURVIVAL PROBABILITY IN RANK-ONE PERTURBATION PROBLEMS

    E-Print Network [OSTI]

    Poltoratski, Alexei

    SURVIVAL PROBABILITY IN RANK-ONE PERTURBATION PROBLEMS with changing boundary condition. The general question of perturbation theory can be stated as follows the effect of rank-one perturbations on the asymptotics of the so-called survival probability. This notion

  7. Initial Decision and Risk Analysis

    SciTech Connect (OSTI)

    Engel, David W.

    2012-02-29T23:59:59.000Z

    Decision and Risk Analysis capabilities will be developed for industry consideration and possible adoption within Year 1. These tools will provide a methodology for merging qualitative ranking of technology maturity and acknowledged risk contributors with quantitative metrics that drive investment decision processes. Methods and tools will be initially introduced as applications to the A650.1 case study, but modular spreadsheets and analysis routines will be offered to industry collaborators as soon as possible to stimulate user feedback and co-development opportunities.

  8. Rank Extraction in Tin-Oxide Sensor Arrays Page 1 of 23 Rank Extraction in Tin-Oxide Sensor Arrays

    E-Print Network [OSTI]

    Roppel, Thaddeus A.

    Rank Extraction in Tin-Oxide Sensor Arrays Page 1 of 23 Rank Extraction in Tin-Oxide Sensor Arrays the amount of data to be processed. This work is a first example in feature extraction from tin-oxide sensors element array of tin-oxide sensors is presented. Results are extrapolated to other arrays of chemical

  9. Health, Safety, and Environmental Screening and Ranking Frameworkfor Geologic CO2 Storage Site Selection

    SciTech Connect (OSTI)

    Oldenburg, Curtis M.

    2006-03-15T23:59:59.000Z

    This report describes a screening and ranking framework(SRF) developed to evaluate potential geologic carbon dioxide (CO2)storage sites on the basis of health, safety, and environmental (HSE)risk arising from possible CO2 leakage. The approach is based on theassumption that HSE risk due to CO2 leakage is dependent on three basiccharacteristics of a geologic CO2 storage site: (1) the potential forprimary containment by the target formation, (2) the potential forsecondary containment if the primary formation leaks, and (3) thepotential for attenuation and dispersion of leaking CO2 if the primaryformation leaks and secondary containment fails. The framework isimplemented in a spreadsheet in which users enter numerical scoresrepresenting expert opinions or general information available frompublished materials along with estimates of uncertainty to evaluate thethree basic characteristics in order to screen and rank candidate sites.Application of the framework to the Rio Vista Gas Field, Ventura OilField, and Mammoth Mountain demonstrates the approach. Refinements andextensions are possible through the use of more detailed data or modelresults in place of property proxies. Revisions and extensions to improvethe approach are anticipated in the near future as it is used and testedby colleagues and collaborators.

  10. Health, Safety, and Environmental Screening and Ranking Frameworkfor Geologic CO2 Storage Site Selection

    SciTech Connect (OSTI)

    Oldenburg, Curtis M.

    2005-09-19T23:59:59.000Z

    This report describes a screening and ranking framework(SRF) developed to evaluate potential geologic carbon dioxide (CO2) storage sites on the basis of health, safety, and environmental (HSE) risk arising from possible CO2 leakage. The approach is based on the assumption that HSE risk due to CO2 leakage is dependent on three basic characteristics of a geologic CO2 storage site: (1) the potential for primary containment by the target formation; (2) the potential for secondary containment if the primary formation leaks; and (3) the potential for attenuation and dispersion of leaking CO2 if the primary formation leaks and secondary containment fails. The framework is implemented in a spreadsheet in which users enter numerical scores representing expert opinions or general information available from published materials along with estimates of uncertainty to evaluate the three basic characteristics in order to screen and rank candidate sites. Application of the framework to the Rio Visa Gas Field, Ventura Oil Field, and Mammoth Mountain demonstrates the approach. Refinements and extensions are possible through the use of more detailed data or model results in place of property proxies. Revisions and extensions to improve the approach are anticipated in the near future as it is used and tested by colleagues and collaborators.

  11. Modified hazard ranking system for sites with mixed radioactive and hazardous wastes. User manual.

    SciTech Connect (OSTI)

    Hawley, K.A.; Peloquin, R.A.; Stenner, R.D.

    1986-04-01T23:59:59.000Z

    This document describes both the original Hazard Ranking System and the modified Hazard Ranking System as they are to be used in evaluating the relative potential for uncontrolled hazardous substance facilities to cause human health or safety problems or ecological or environmental damage. Detailed instructions for using the mHRS/HRS computer code are provided, along with instructions for performing the calculations by hand. Uniform application of the ranking system will permit the DOE to identify those releases of hazardous substances that pose the greatest hazard to humans or the environment. However, the mHRS/HRS by itself cannot establish priorities for the allocation of funds for remedial action. The mHRS/HRS is a means for applying uniform technical judgment regarding the potential hazards presented by a facility relative to other facilities. It does not address the feasibility, desirability, or degree of cleanup required. Neither does it deal with the readiness or ability of a state to carry out such remedial action, as may be indicated, or to meet other conditions prescribed in CERCLA. 13 refs., 13 figs., 27 tabs.

  12. Thirteenth biennial lignite symposium: technology and utilization of low-rank coals proceedings. Volume 2

    SciTech Connect (OSTI)

    Jones, M.L. (ed.)

    1986-02-01T23:59:59.000Z

    These proceedings are the collected manuscripts from the 1985 Lignite Symposium held at Bismarck, North Dakota on May 21-23, 1985. Sponsorship of the thirteenth biennial meeting was by the United States Department of Energy, the University of North Dakota Energy Research Center, and the Texas University Coal Research Consortium. Seven technical sessions plus two luncheons and a banquet were held during the two and a half day meeting. The final half day included tours of the Great Plains Gasification Plant; Basin Electric's Antelope Valley Power Station; and the Freedom Mine. Sessions covered diverse topics related to the technology and use of low-rank coals including coal development and public policy, combustion, gasification, environmental systems for low-rank coal utilization, liquefaction, beneficiation and coal mining and coal inorganics. All the papers have been entered individually into EDB and ERA.

  13. Thirteenth biennial lignite symposium: technology and utilization of low-rank coals proceedings. Volume 1

    SciTech Connect (OSTI)

    Jones, M.L. (ed.)

    1986-02-01T23:59:59.000Z

    These proceedings are the collected manuscripts from the 1985 Lignite Symposium held at Bismarck, North Dakota on May 21-23. Sponsorship of the thirteenth biennial meeting was by the United States Department of Energy, the University of North Dakota Energy Research Center, and the Texas University Coal Research Consortium. Seven technical sessions were held during the two and a half day meeting. The final half day included tours of the Great Plains Gasification Plant; Basin Electric's Antelope Valley Power Station; and the Freedom Mine. Sessions covered diverse topics related to the technology and use of low-rank coals including coal development and public policy, combustion, gasification, environmental systems for low-rank coal utilization, liquefaction, beneficiation and coal mining and coal inorganics. Twenty-four papers have been entered individually into EDB and ERA.

  14. Physics high-ranking Journals (category 2) Advances in Physics

    E-Print Network [OSTI]

    Physics high-ranking Journals (category 2) Advances in Physics Annual Review of Astronomy and Astrophysics Annual Review of Nuclear and Particle Science Applied Physics Letters Astronomy & Astrophysics Astronomy and Astrophysics Review Astrophysical Journal European Physical Journal D. Atomic, Molecular

  15. On Equivalence Relationships Between Classification and Ranking Algorithms

    E-Print Network [OSTI]

    Rudin, Cynthia

    We demonstrate that there are machine learning algorithms that can achieve success for two separate tasks simultaneously, namely the tasks of classification and bipartite ranking. This means that advantages gained from ...

  16. Canada's top-ranked digestive health research institute opens

    E-Print Network [OSTI]

    Thompson, Michael

    network Canada's top-ranked digestive health research institute opens McMaster innovates the grand opening of the Farncombe Family Digestive Health Research Institute. The creation of this unique

  17. Linear rank inequalities on five or more variables

    E-Print Network [OSTI]

    Dougherty, Randall; Zeger, Kenneth

    2009-01-01T23:59:59.000Z

    Ranks of subspaces of vector spaces satisfy all linear inequalities satisfied by entropies (including the standard Shannon inequalities) and an additional inequality due to Ingleton. It is known that the Shannon and Ingleton inequalities generate all such linear rank inequalities on up to four variables, but it has been an open question whether additional inequalities hold for the case of five or more variables. Here we give a list of 24 inequalities which, together with the Shannon and Ingleton inequalities, generate all linear rank inequalities on five variables. We also give a partial list of linear rank inequalities on six variables and general results which produce such inequalities on an arbitrary number of variables; we prove that there are essentially new inequalities at each number of variables beyond four (a result also proved recently by Kinser).

  18. Oxygen enhanced switching to combustion of lower rank fuels ...

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

    enhanced switching to combustion of lower rank fuels Re-direct Destination: A furnace that combusts fuel, such as coal, of a given minimum energy content to obtain a stated minimum...

  19. Ranks of Elliptic Curves via Class Groups of Number Fields

    E-Print Network [OSTI]

    2012-11-21T23:59:59.000Z

    state-of-the art methods to compute the rank assuming there is no rational point of order ... p /? S of K, we have valuation ordp : K ?? Kp ? Z ? {?}. If L is a...

  20. 2011-12 At A Glance RANKINGS & RECOGNITION

    E-Print Network [OSTI]

    Ward, Karen

    " Civil Engineering"" " " 10 " Environmental Engineering" " 5 " Construction Management" " 4 " Computer Science & Engineering" 1 " Environmental Science & Engineering" 1 ALUMNI " 11,686 since 1914 FACULT Y2011-12 At A Glance RANKINGS & RECOGNITION Top Engineering Schools for Hispanics (Hispanic Business

  1. Low-rank matrix completion via preconditioned optimization on the ...

    E-Print Network [OSTI]

    2015-02-20T23:59:59.000Z

    Feb 20, 2015 ... Meyer et al. [28] and Absil et al. [3] propose a few quotient geometries for the manifold of fixed-rank matrices. In recent work, Mishra et al.

  2. Upgrading low rank coal using the Koppelman Series C process

    SciTech Connect (OSTI)

    Merriam, N.W., Western Research Institute

    1998-01-01T23:59:59.000Z

    Development of the K-Fuel technology began after the energy shortage of the early 1970s in the United States led energy producers to develop the huge deposits of low-sulfur coal in the Powder River Basin (PRB) of Wyoming. PRB coal is a subbituminous C coal containing about 30 wt % moisture and having heating values of about 18.6 megajoules/kg (8150 Btu/lb). PRB coal contains from 0.3 to 0.5 wt % sulfur, which is nearly all combined with the organic matrix in the coal. It is in much demand for boiler fuel because of the low-sulfur content and the low price. However, the low-heating value limits the markets for PRB coal to boilers specially designed for the high- moisture coal. Thus, the advantages of the low-sulfur content are not available to many potential customers having boilers that were designed for bituminous coal. This year about 250 million tons of coal is shipped from the Powder River Basin of Wyoming. The high- moisture content and, consequently, the low-heating value of this coal causes the transportation and combustion of the coal to be inefficient. When the moisture is removed and the heating value increased the same bundle of energy can be shipped using one- third less train loads. Also, the dried product can be burned much more efficiently in boiler systems. This increase in efficiency reduces the carbon dioxide emissions caused by use of the low-heating value coal. Also, the processing used to remove water and restructure the coal removes sulfur, nitrogen, mercury, and chlorides from the coal. This precombustion cleaning is much less costly than stack scrubbing. PRB coal, and other low-rank coals, tend to be highly reactive when freshly mined. These reactive coals must be mixed regularly (every week or two) when fresh, but become somewhat more stable after they have aged for several weeks. PRB coal is relatively dusty and subject to self-ignition compared to bituminous coals. When dried using conventional technology, PRB coal is even more dusty and more susceptible to spontaneous combustion than the raw coal. Also, PRB coal, if dried at low temperature, typically readsorbs about two- thirds of the moisture removed by drying. This readsorption of moisture releases the heat of adsorption of the water which is a major cause of self- heating of low-rank coals at low temperature.

  3. Ranking, Labeling, and Summarizing Short Text in Social Media

    E-Print Network [OSTI]

    Khabiri, Elham

    2013-04-18T23:59:59.000Z

    to do a better research. His motivation and suggestions were always with me through the completion of my PhD. Without his continuous help and support this work would not have been possible. Many thanks to my lab-mates for their support and much... KL- divergence means more discriminative power. . . . . . . . . . . . . . 105 5.14 Compare PageRank with available graph based methods (Mead and LexRank). Higher NDCG is more desirable. . . . . . . . . . . . . . . 106 5.15 Compare the tf -idf...

  4. ON THE IRREDUCIBILITY, LYAPUNOV RANK, AND ...

    E-Print Network [OSTI]

    2013-10-16T23:59:59.000Z

    Aug 28, 2013 ... ?(K) > n, one gets an overdetermined system of bilinear relations. In many of these ...... International Journal of Optimization: Theory,. Methods...

  5. Click Efficiency: A Unified Optimal Ranking for Online Ads and Documents

    E-Print Network [OSTI]

    Balakrishnan, Raju

    2011-01-01T23:59:59.000Z

    Traditionally the probabilistic ranking principle is used to rank the search results while the ranking based on expected profits is used for paid placement of ads. These rankings try to maximize the expected utilities based on the user click models. Recent empirical analysis on search engine logs suggests a unified click models for both ranked ads and search results. The segregated view of document and ad rankings does not consider this commonality. Further, the used models consider parameters of (i) probability of the user abandoning browsing results (ii) perceived relevance of result snippets. But how to consider them for improved ranking is unknown currently. In this paper, we propose a generalized ranking function---namely "Click Efficiency (CE)"---for documents and ads based on empirically proven user click models. The ranking considers parameters (i) and (ii) above, optimal and has the same time complexity as sorting. To exploit its generality, we examine the reduced forms of CE ranking under different ...

  6. Men open with No.8 ranked Trinity Western PRINCE GEORGE, BC -The men's soccer team will open at home with CIS No.8 ranked team, the Trinity Western

    E-Print Network [OSTI]

    Northern British Columbia, University of

    Men open with No.8 ranked Trinity Western PRINCE GEORGE, BC - The men's soccer team will open at home with CIS No.8 ranked team, the Trinity Western Spartans. Kickoff is set for 2:15 p.m. Sept. 22 into their first CIS home opener taking on the No.8 CIS ranked team, the Trinity Western Spartans. The stakes

  7. Estimating radiogenic cancer risks

    SciTech Connect (OSTI)

    NONE

    1994-06-01T23:59:59.000Z

    This document presents a revised methodology for EPA`s estimation of cancer risks due to low-LET radiation exposures in light of information that has become available since the publication of BIER III, especially new information on the Japanese atomic bomb survivors. For most cancer sites, the risk model is one in which the age-specific relative risk coefficients are obtained by taking the geometric mean of coefficients derived from the atomic bomb survivor data employing two different methods for transporting risks from Japan to the U.S. (multiplicative and NIH projection methods). Using 1980 U.S. vital statistics, the risk models are applied to estimate organ-specific risks, per unit dose, for a stationary population.

  8. Using Lotkaian Informetrics for Ranking in Digital Libraries

    E-Print Network [OSTI]

    Schaer, Philipp

    2011-01-01T23:59:59.000Z

    The purpose of this paper is to propose the use of models, theories and laws in bibliometrics and scientometrics to enhance information retrieval processes, especially ranking. A common pattern in many man-made data sets is Lotka's Law which follows the well-known power-law distributions. These informetric distributions can be used to give an alternative order to large and scattered result sets and can be applied as a new ranking mechanism. The polyrepresentation of information in Digital Library systems is used to enhance the retrieval quality, to overcome the drawbacks of the typical term-based ranking approaches and to enable users to explore retrieved document sets from a different perspective.

  9. Health risks in perspective: Judging health risks of energy technologies

    SciTech Connect (OSTI)

    Rowe, M.D.

    1992-09-18T23:59:59.000Z

    Almost daily, Americans receive reports from the mass news media about some new and frightening risk to health and welfare. Most such reports emphasize the newsworthiness of the risks -- the possibility of a crisis, disagreements among experts, how things happened, who is responsible for fixing them, how much will it cost, conflict among parties involved, etc. As a rule, the magnitudes of the risks, or the difficulty of estimating those magnitudes, have limited newsworthiness, and so they are not mentioned. Because of this emphasis in the news media, most people outside the risk assessment community must judge the relative significance of the various risks to which we all are exposed with only that information deemed newsworthy by reporters. This information is biased and shows risks in isolation. There is no basis for understanding and comparing the relative importance of risks among themselves, or for comparing one risk, perhaps a new or newly-discovered one, in the field of all risks. The purpose of this report is to provide perspective on the various risks to which we are routinely exposed. It serves as a basis for understanding the meaning of quantitative risk estimates and for comparing new or newly-discovered risks with other, better-understood risks. Specific emphasis is placed on health risks of energy technologies.

  10. PageRank model of opinion formation on Ulam networks

    E-Print Network [OSTI]

    L. Chakhmakhchyan; D. Shepelyansky

    2013-11-03T23:59:59.000Z

    We consider a PageRank model of opinion formation on Ulam networks, generated by the intermittency map and the typical Chirikov map. The Ulam networks generated by these maps have certain similarities with such scale-free networks as the World Wide Web (WWW), showing an algebraic decay of the PageRank probability. We find that the opinion formation process on Ulam networks have certain similarities but also distinct features comparing to the WWW. We attribute these distinctions to internal differences in network structure of the Ulam and WWW networks. We also analyze the process of opinion formation in the frame of generalized Sznajd model which protects opinion of small communities.

  11. Enhancing Invenio Digital Library With An External Relevance Ranking Engine

    E-Print Network [OSTI]

    Glauner, Patrick Oliver

    Invenio is a comprehensive web-based free digital library software suite originally developed at CERN. In order to improve its information retrieval and word similarity ranking capabilities, the goal of this thesis is to enhance Invenio by bridging it with modern external information retrieval systems. In the first part a comparison of various information retrieval systems such as Solr and Xapian is made. In the second part a system-independent bridge for word similarity ranking is designed and implemented. Subsequently, Solr and Xapian are integrated in Invenio via adapters to the bridge. In the third part scalability tests are performed. Finally, a future outlook is briefly discussed.

  12. Rank-ordered Multifractal Spectrum for Intermittent Fluctuations

    E-Print Network [OSTI]

    Tom Chang; Cheng-chin Wu

    2007-12-27T23:59:59.000Z

    We describe a new method that is both physically explicable and quantitatively accurate in describing the multifractal characteristics of intermittent events based on groupings of rank-ordered fluctuations. The generic nature of such rank-ordered spectrum leads it to a natural connection with the concept of one-parameter scaling for monofractals. We demonstrate this technique using results obtained from a 2D MHD simulation. The calculated spectrum suggests a crossover from the near Gaussian characteristics of small amplitude fluctuations to the extreme intermittent state of large rare events.

  13. Can we do without ranks in Burrows Wheeler transform compression?

    E-Print Network [OSTI]

    Wirth, Tony

    Wirth ¡ and Alistair Moffat ¢ Abstract: Compressors based on the Burrows Wheeler transform (BWT) convert of inefficiency. Instead of relying on symbol ranking, we examine the problem of directly encoding the symbols-based compressors. ¤ This work was supported by the Australian Research Council.¥ Department of Computer Science

  14. The blowup formula for higher rank Donaldson invariants

    E-Print Network [OSTI]

    Culler, Lucas Howard

    2014-01-01T23:59:59.000Z

    In this thesis, I study the relationship between the higher rank Donaldson invariants of a smooth 4-manifold X and the invariants of its blowup X#CP2 . This relationship can be expressed in terms of a formal power series ...

  15. Stabilized thermally beneficiated low rank coal and method of manufacture

    DOE Patents [OSTI]

    Viall, Arthur J. (Colstrip, MT); Richards, Jeff M. (Colstrip, MT)

    1999-01-01T23:59:59.000Z

    A process for reducing the spontaneous combustion tendencies of thermally beneficiated low rank coals employing heat, air or an oxygen containing gas followed by an optional moisture addition. Specific reaction conditions are supplied along with knowledge of equipment types that may be employed on a commercial scale to complete the process.

  16. Stabilized thermally beneficiated low rank coal and method of manufacture

    DOE Patents [OSTI]

    Viall, Arthur J. (Colstrip, MT); Richards, Jeff M. (Colstrip, MT)

    2000-01-01T23:59:59.000Z

    A process for reducing the spontaneous combustion tendencies of thermally beneficiated low rank coals employing heat, air or an oxygen containing gas followed by an optional moisture addition. Specific reaction conditions are supplied along with knowledge of equipment types that may be employed on a commercial scale to complete the process.

  17. Stabilized thermally beneficiated low rank coal and method of manufacture

    DOE Patents [OSTI]

    Viall, A.J.; Richards, J.M.

    1999-01-26T23:59:59.000Z

    A process is described for reducing the spontaneous combustion tendencies of thermally beneficiated low rank coals employing heat, air or an oxygen containing gas followed by an optional moisture addition. Specific reaction conditions are supplied along with knowledge of equipment types that may be employed on a commercial scale to complete the process. 3 figs.

  18. SampleRank: Training Factor Graphs with Atomic Gradients

    E-Print Network [OSTI]

    McCallum, Andrew

    a user-provided loss function to distribute stochastic gradients across an MCMC chain. As a result, parameter updates can be computed between arbitrary MCMC states. Sam- pleRank is not only faster than CD- expensive gradients between the ground-truth and samples along an MCMC chain yielding a stochastic

  19. Lignites and Low Rank Coals Conference: Proceedings 2001

    SciTech Connect (OSTI)

    None

    2002-02-01T23:59:59.000Z

    EPRI and the Technische Vereinigung des Grosskraftswerkbetreiber (Technical Association of Large Power Plant Operators) (VGB) jointly held a Conference on Lignites and Low Rank Coals in Wiesbaden, Germany, May 16-18, 2001. These Proceedings include the plenary papers, technical session papers, and rapporteurs' summaries from the conference.

  20. Reduced-rank Vector Generalized Linear Models Thomas W. Yee,

    E-Print Network [OSTI]

    Hastie, Trevor

    . Keywords: Canonical correspondence analysis; Linear discriminant analysis; Neural networks; Non- parametric the reduced-rank regression idea has been applied to non-Gaussian errors is the MLM. This was proposed such as neural networks, projection pursuit regression, linear discriminant analysis, canonical correspondence

  1. High School Math Contest Rankings November 16, 2013

    E-Print Network [OSTI]

    Boas, Harold P.

    2013 High School Math Contest Rankings November 16, 2013 Sweepstakes Sweepstakes Points School School of Advancement Isil Nal fourth 50 Quail Valley Middle School Isil Nal Fifth 49 Whatley Home School Willaim Whatley Sixth 43 Westwood High School Zheng Chen seventh 28 LASA Sarah Harrelson Eighth 27

  2. Multiple Faculty Positions, All Ranks Materials Science and Engineering

    E-Print Network [OSTI]

    Multiple Faculty Positions, All Ranks Materials Science and Engineering Texas A&M University The interdisciplinary Department of Materials Science and Engineering at Texas A&M University invites applications. Applicants must have an earned doctorate in materials science and engineering or an appropriate, closely

  3. Scalable K-Means by Ranked Retrieval Andrei Broder

    E-Print Network [OSTI]

    Cortes, Corinna

    Scalable K-Means by Ranked Retrieval Andrei Broder Google 1600 Amphitheater Parkway Mountain View@google.com Srihari Venkatesan xAd 440 North Wolfe Road Sunnyvale, CA 94085 ABSTRACT The k-means clustering algorithm, a prohibitive cost when the number of clusters is large. In this paper we show how to reduce the cost of the k-means

  4. RANKS OF ELLIPTIC CURVES WITH PRESCRIBED TORSION OVER NUMBER FIELDS

    E-Print Network [OSTI]

    Dujella, Andrej

    RANKS OF ELLIPTIC CURVES WITH PRESCRIBED TORSION OVER NUMBER FIELDS JOHAN BOSMAN, PETER BRUIN of all elliptic curves over quadratic fields with torsion subgroup T is empty, or it contains curves number fields. More explicitly, we will be interested in the following question: given a torsion group

  5. AVERAGE RANKS OF ELLIPTIC CURVES: TENSION BETWEEN DATA AND CONJECTURE

    E-Print Network [OSTI]

    Stein, William

    curves of conductor X} converge as X tends to infinity, and if so, what is the limit P = lim X PAVERAGE RANKS OF ELLIPTIC CURVES: TENSION BETWEEN DATA AND CONJECTURE BAUR BEKTEMIROV, BARRY MAZUR, and to list them in order of increasing conductor, banking on the theorem that tells us that there are only

  6. Robust video denoising using low rank matrix completion , Chaoqiang Liu

    E-Print Network [OSTI]

    Shen, Zuowei

    Robust video denoising using low rank matrix completion Hui Ji , Chaoqiang Liu , Zuowei Shen video denoising algorithms assume a sin- gle statistical model of image noise, e.g. additive Gaussian white noise, which often is violated in practice. In this pa- per, we present a new patch-based video

  7. Methodology of organizational learning in risk management A method of organizational risk perception by the stakeholders

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Methodology of organizational learning in risk management A method of organizational risk Experience reflection, organizational risks, food-related sanitary alert, risk perception. Abstract for organizational risks applied to the management of sanitary alerts by the General Directorate for Food (DGAl

  8. Analog Rank-Order Filter using multiple-winners-take-all

    E-Print Network [OSTI]

    Dake, Luthuli Edem

    2000-01-01T23:59:59.000Z

    I present an analog VLSI Rank Order Filter (ROF), capable of ranking a wide array of inputs. Implementation is achieved using two multiple-winners-take-all blocks that compute in parallel. Simulation and experimental results show good speed...

  9. BETO Ranks High in Biofuels Digest's Top 125 in the Advanced...

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

    Ranks High in Biofuels Digest's Top 125 in the Advanced Bioeconomy BETO Ranks High in Biofuels Digest's Top 125 in the Advanced Bioeconomy February 6, 2015 - 4:18pm Addthis...

  10. Finitely Generated Rank-Ordered Sets as a Model for Type: Dieter Spreen

    E-Print Network [OSTI]

    Spreen, Dieter

    by ESPRIT BRA 7232 1 #12;Rank-preserving functions are such that each approximation of a function value

  11. Next Generation Nuclear Plant Phenomena Identification and Ranking Tables (PIRTs) Volume 6: Process Heat and Hydrogen Co-Generation PIRTs

    SciTech Connect (OSTI)

    Forsberg, Charles W [ORNL; Gorensek, M. B. [Savannah River National Laboratory (SRNL); Herring, S. [Idaho National Laboratory (INL); Pickard, P. [Sandia National Laboratories (SNL)

    2008-03-01T23:59:59.000Z

    A Phenomena Identification and Ranking Table (PIRT) exercise was conducted to identify potential safety-0-related physical phenomena for the Next Generation Nuclear Plant (NGNP) when coupled to a hydrogen production or similar chemical plant. The NGNP is a very high-temperature reactor (VHTR) with the design goal to produce high-temperature heat and electricity for nearby chemical plants. Because high-temperature heat can only be transported limited distances, the two plants will be close to each other. One of the primary applications for the VHTR would be to supply heat and electricity for the production of hydrogen. There was no assessment of chemical plant safety challenges. The primary application of this PIRT is to support the safety analysis of the NGNP coupled one or more small hydrogen production pilot plants. However, the chemical plant processes to be coupled to the NGNP have not yet been chosen; thus, a broad PIRT assessment was conducted to scope alternative potential applications and test facilities associated with the NGNP. The hazards associated with various chemicals and methods to minimize risks from those hazards are well understood within the chemical industry. Much but not all of the information required to assure safe conditions (separation distance, relative elevation, berms) is known for a reactor coupled to a chemical plant. There is also some experience with nuclear plants in several countries that have produced steam for industrial applications. The specific characteristics of the chemical plant, site layout, and the maximum stored inventories of chemicals can provide the starting point for the safety assessments. While the panel identified events and phenomena of safety significance, there is one added caveat. Multiple high-temperature reactors provide safety-related experience and understanding of reactor safety. In contrast, there have been only limited safety studies of coupled chemical and nuclear plants. The work herein provides a starting point for those studies; but, the general level of understanding of safety in coupling nuclear and chemical plants is less than in other areas of high-temperature reactor safety.

  12. Low-rank coal research: Volume 3, Combustion research: Final report. [Great Plains

    SciTech Connect (OSTI)

    Mann, M. D.; Hajicek, D. R.; Zobeck, B. J.; Kalmanovitch, D. P.; Potas, T. A.; Maas, D. J.; Malterer, T. J.; DeWall, R. A.; Miller, B. G.; Johnson, M. D.

    1987-04-01T23:59:59.000Z

    Volume III, Combustion Research, contains articles on fluidized bed combustion, advanced processes for low-rank coal slurry production, low-rank coal slurry combustion, heat engine utilization of low-rank coals, and Great Plains Gasification Plant. These articles have been entered individually into EDB and ERA. (LTN)

  13. Ranking Bias in Deep Web Size Estimation Using Capture Recapture Method

    E-Print Network [OSTI]

    Lu, Jianguo

    Ranking Bias in Deep Web Size Estimation Using Capture Recapture Method Jianguo Lu Preprint submitted to Elsevier March 12, 2010 #12;Ranking Bias in Deep Web Size Estimation Using Capture Recapture, Canada. email: jlu@uwindsor.ca Abstract Many deep web data sources are ranked data sources, i

  14. Elliptic curves with large torsion and positive rank over number fields of small degree and ECM

    E-Print Network [OSTI]

    Dujella, Andrej

    Elliptic curves with large torsion and positive rank over number fields of small degree and ECM for construction of elliptic curves with large torsion group and positive rank over number fields of small degree). Keywords: Torsion group, rank, elliptic curves, number fields Mathematics Subject Classification (2010): 11

  15. Ranking Structured Documents: A Large Margin Based Approach for Patent Prior Art Search

    E-Print Network [OSTI]

    Gomes, Carla P.

    Ranking Structured Documents: A Large Margin Based Approach for Patent Prior Art Search Yunsong Guo propose an approach for automatically rank- ing structured documents applied to patent prior art search. Our model, SVM Patent Ranking (SVMP R) incorporates margin constraints that di- rectly capture

  16. D & D screening risk evaluation guidance

    SciTech Connect (OSTI)

    Robers, S.K.; Golden, K.M.; Wollert, D.A.

    1995-09-01T23:59:59.000Z

    The Screening Risk Evaluation (SRE) guidance document is a set of guidelines provided for the uniform implementation of SREs performed on decontamination and decommissioning (D&D) facilities. Although this method has been developed for D&D facilities, it can be used for transition (EM-60) facilities as well. The SRE guidance produces screening risk scores reflecting levels of risk through the use of risk ranking indices. Five types of possible risk are calculated from the SRE: current releases, worker exposures, future releases, physical hazards, and criticality. The Current Release Index (CRI) calculates the current risk to human health and the environment, exterior to the building, from ongoing or probable releases within a one-year time period. The Worker Exposure Index (WEI) calculates the current risk to workers, occupants and visitors inside contaminated D&D facilities due to contaminant exposure. The Future Release Index (FRI) calculates the hypothetical risk of future releases of contaminants, after one year, to human health and the environment. The Physical Hazards Index (PHI) calculates the risks to human health due to factors other than that of contaminants. Criticality is approached as a modifying factor to the entire SRE, due to the fact that criticality issues are strictly regulated under DOE. Screening risk results will be tabulated in matrix form, and Total Risk will be calculated (weighted equation) to produce a score on which to base early action recommendations. Other recommendations from the screening risk scores will be made based either on individual index scores or from reweighted Total Risk calculations. All recommendations based on the SRE will be made based on a combination of screening risk scores, decision drivers, and other considerations, as determined on a project-by-project basis.

  17. Health, safety, and environmental risks from energy production: A year-long reality check

    E-Print Network [OSTI]

    Oldenburg, C.M.

    2012-01-01T23:59:59.000Z

    and environmental risks from energy production: A year-longaddition to the risks of the existing energy infrastructureto minimize HSE risk related to the world's existing energy

  18. Ranking of epistemic uncertainties in scenario-based seismic risk evaluations

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    best practices for probabilistic seismic demand analysis for single sites (i.e. specific elements and fragility functions generated from a capacity spectrum approach (i.e. use of a set of natural response

  19. Percentile Ranks and the Integrated Impact Indicator (I3)

    E-Print Network [OSTI]

    Leydesdorff, Loet

    2011-01-01T23:59:59.000Z

    We tested Rousseau's (in press) recent proposal to define percentile classes in the case of the Integrated Impact Indicator (I3) so that the largest number in a set always belongs to the highest (100th) percentile rank class. In the case a set of nine uncited papers and one with citation, however, the uncited papers would all be placed in the 90th percentile rank. A lowly-cited document set would thus be advantaged when compared with a highly-cited one. Notwithstanding our reservations, we extended the program for computing I3 in Web-of-Science data (at http://www.leydesdorff.net/software/i3) with this option; the quantiles without a correction are now the default. As Rousseau mentions, excellence indicators (e.g., the top-10%) can be considered as special cases of I3: only two percentile rank classes are distinguished for the evaluation. Both excellence and impact indicators can be tested statistically using the z-test for independent proportions.

  20. Modified Hazard Ranking System/Hazard Ranking System for sites with mixed radioactive and hazardous wastes: Software documentation

    SciTech Connect (OSTI)

    Stenner, R.D.; Peloquin, R.A.; Hawley, K.A.

    1986-11-01T23:59:59.000Z

    The mHRS/HRS software package was developed by the Pacific Northwest Laboratory (PNL) under contract with the Department of Energy (DOE) to provide a uniform method for DOE facilities to use in performing their Conservation Environmental Response Compensation and Liability Act (CERCLA) Phase I Modified Hazard Ranking System or Hazard Ranking System evaluations. The program is designed to remove the tedium and potential for error associated with the performing of hand calculations and the interpreting of information on tables and in reference books when performing an evaluation. The software package is designed to operate on a microcomputer (IBM PC, PC/XT, or PC/AT, or a compatible system) using either a dual floppy disk drive or a hard disk storage system. It is written in the dBASE III language and operates using the dBASE III system. Although the mHRS/HRS software package was developed for use at DOE facilities, it has direct applicability to the performing of CERCLA Phase I evaluations for any facility contaminated by hazardous waste. The software can perform evaluations using either the modified hazard ranking system methodology developed by DOE/PNL, the hazard ranking system methodology developed by EPA/MITRE Corp., or a combination of the two. This document is a companion manual to the mHRS/HRS user manual. It is intended for the programmer who must maintain the software package and for those interested in the computer implementation. This manual documents the system logic, computer programs, and data files that comprise the package. Hardware and software implementation requirements are discussed. In addition, hand calculations of three sample situations (problems) with associated computer runs used for the verification of program calculations are included.

  1. NGNP Risk Management Database: A Model for Managing Risk

    SciTech Connect (OSTI)

    John Collins

    2009-09-01T23:59:59.000Z

    To facilitate the implementation of the Risk Management Plan, the Next Generation Nuclear Plant (NGNP) Project has developed and employed an analytical software tool called the NGNP Risk Management System (RMS). A relational database developed in Microsoft Access, the RMS provides conventional database utility including data maintenance, archiving, configuration control, and query ability. Additionally, the tools design provides a number of unique capabilities specifically designed to facilitate the development and execution of activities outlined in the Risk Management Plan. Specifically, the RMS provides the capability to establish the risk baseline, document and analyze the risk reduction plan, track the current risk reduction status, organize risks by reference configuration system, subsystem, and component (SSC) and Area, and increase the level of NGNP decision making.

  2. Ranking on Cross Domain Manifold forRanking on Cross-Domain Manifold for Sketch-based 3D model Retrieval

    E-Print Network [OSTI]

    Ohbuchi, Ryutarou

    printers,... User generated. T i bl 3D h Trimble 3D warehouse... 3D model retrieval is essential scanners, 3D printers,... User generated. T i bl 3D h Trimble 3D warehouse... 3D model retrievalRanking on Cross Domain Manifold forRanking on Cross-Domain Manifold for Sketch-based 3D model

  3. Ranking on Cross Domain Manifold forRanking on Cross-Domain Manifold for Sketch-based 3D model Retrieval

    E-Print Network [OSTI]

    Ohbuchi, Ryutarou

    printers,... User generated. T i bl 3D h Trimble 3D warehouse... 3D model retrieval is essentialRanking on Cross Domain Manifold forRanking on Cross-Domain Manifold for Sketch-based 3D model Retrieval Takahiko FuruyaRyutarou Ohbuchi University of Yamanashi #12;IntroductionIntroduction 3D models

  4. Enterprise Risk Management Program

    E-Print Network [OSTI]

    Hayden, Nancy J.

    Enterprise Risk Management Program DRAFT Introduction to Enterprise Risk Management at UVM 1 #12;Enterprise Risk Management Program DRAFT What is Enterprise Risk Management? Enterprise risk management governance, and accountability Facilitates effective management of the uncertainty and associated risks

  5. Risk Assessment Risk communication 1997

    E-Print Network [OSTI]

    Hung, Shih-Hao

    1 1997 2003 WHO #12;6060 NTU Alumni Bimonthly No.87 Fault tree Event tree [2] Nuclear reactor of nuclear power plants. Reliability Engineering and Safety System, 52:297-314. [4] Jonas Hagmann. 2012. Fukushima: probing the analytical and epistemological limits of risk analysis. Journal of Risk Research. 15

  6. Low-rank-coal study national needs for resource development. Volume 1. Executive summary

    SciTech Connect (OSTI)

    Elliot, Dr., Martin A.; Hill, George R.; Jonakin, James; Crutchfield, Paul W.; Severson, Donald E.; White, David M.; Yeager, Kurt

    1980-11-01T23:59:59.000Z

    Low-rank coals - lignite and subbituminous - are those which have been subjected to the least amount of metamorphic change during the coal-forming process. As such, they retain greater fractions of moisture and volatile matter from the original peat material, and contain less fixed carbon, than the high-rank coals - bituminous and anthracite. The primary measure used to classify the lower ranks of coal is heating value. Other important characteristics which distinguish the low-rank coals from high-rank coals are discussed in this report. Low-rank coals represent a major, and largely untapped, energy resource for this country. Very extensive deposits of lignite and subbituminous coal exist in the western states, the Gulf coast, and Alaska. Major deposits of low-rank coal are also found in many other countries, most notably the USSR, Australia, Canada, and the central and eastern European nations. Worldwide coal statistics indicate that low-rank coals account for roughly one-third of the total resource and current production tonnages. This report recommends a comprehensive national research, development, and demonstration (RD and D) program to enhance the development of low-rank coals. The major conclusion of this study is that the unique properties of these coals affect the technologies for their extraction, preparation, direct use, and conversion and justify a separate focus on low-rank coals in the national RD and D efforts.

  7. Market Based Risk Mitigation: Risk Management vs. Risk Avoidance

    E-Print Network [OSTI]

    Market Based Risk Mitigation: Risk Management vs. Risk Avoidance Shmuel Oren University of the critical infrastructures in our society. Risk assessment and systematic consideration of risk in the design knowledge for engineers, like physics for instance, consideration of risk has penetrated all engineering

  8. Discoveries far from the lamppost with matrix elements and ranking

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

    Debnath, Dipsikha; Gainer, James S.; Matchev, Konstantin T.

    2015-04-01T23:59:59.000Z

    The prevalence of null results in searches for new physics at the LHC motivates the effort to make these searches as model-independent as possible. We describe procedures for adapting the Matrix Element Method for situations where the signal hypothesis is not known a priori. We also present general and intuitive approaches for performing analyses and presenting results, which involve the flattening of background distributions using likelihood information. The first flattening method involves ranking events by background matrix element, the second involves quantile binning with respect to likelihood (and other) variables, and the third method involves reweighting histograms by the inverse of the background distribution.

  9. On the Classification of Low-Rank Braided Fusion Categories

    E-Print Network [OSTI]

    Bruillard, Paul Joseph

    2013-05-23T23:59:59.000Z

    ON THE CLASSIFICATION OF LOW-RANK BRAIDED FUSION CATEGORIES A Dissertation by PAUL JOSEPH BRUILLARD Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment of the requirements for the degree of DOCTOR...+=p . BFC Braided Fusion Category. C0 The M uger center of the category C. Cad The adjoint subcategory. Cpt The pointed subcategory. Cop Opposite (mirror) category to C. coevX Coevaluation I! X X . C2 (G;K ) 2-cochains of G with coe cients in K . C...

  10. Discoveries far from the lamppost with matrix elements and ranking

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

    Debnath, Dipsikha; Gainer, James S.; Matchev, Konstantin T.

    2015-04-01T23:59:59.000Z

    The prevalence of null results in searches for new physics at the LHC motivates the effort to make these searches as model-independent as possible. We describe procedures for adapting the Matrix Element Method for situations where the signal hypothesis is not known a priori. We also present general and intuitive approaches for performing analyses and presenting results, which involve the flattening of background distributions using likelihood information. The first flattening method involves ranking events by background matrix element, the second involves quantile binning with respect to likelihood (and other) variables, and the third method involves reweighting histograms by the inversemoreof the background distribution.less

  11. Including costs of supply chain risk in strategic sourcing decisions

    E-Print Network [OSTI]

    Jain, Avani

    2009-01-01T23:59:59.000Z

    Cost evaluations do not always include the costs associated with risks when organizations make strategic sourcing decisions. This research was conducted to establish and quantify the impact of risks and risk-related costs ...

  12. Low-rank coal research. Quarterly report, January--March 1990

    SciTech Connect (OSTI)

    Not Available

    1990-08-01T23:59:59.000Z

    This document contains several quarterly progress reports for low-rank coal research that was performed from January-March 1990. Reports in Control Technology and Coal Preparation Research are in Flue Gas Cleanup, Waste Management, and Regional Energy Policy Program for the Northern Great Plains. Reports in Advanced Research and Technology Development are presented in Turbine Combustion Phenomena, Combustion Inorganic Transformation (two sections), Liquefaction Reactivity of Low-Rank Coals, Gasification Ash and Slag Characterization, and Coal Science. Reports in Combustion Research cover Fluidized-Bed Combustion, Beneficiation of Low-Rank Coals, Combustion Characterization of Low-Rank Coal Fuels, Diesel Utilization of Low-Rank Coals, and Produce and Characterize HWD (hot-water drying) Fuels for Heat Engine Applications. Liquefaction Research is reported in Low-Rank Coal Direct Liquefaction. Gasification Research progress is discussed for Production of Hydrogen and By-Products from Coal and for Chemistry of Sulfur Removal in Mild Gas.

  13. Low-Rank Coal Grinding Performance Versus Power Plant Performance

    SciTech Connect (OSTI)

    Rajive Ganguli; Sukumar Bandopadhyay

    2008-12-31T23:59:59.000Z

    The intent of this project was to demonstrate that Alaskan low-rank coal, which is high in volatile content, need not be ground as fine as bituminous coal (typically low in volatile content) for optimum combustion in power plants. The grind or particle size distribution (PSD), which is quantified by percentage of pulverized coal passing 74 microns (200 mesh), affects the pulverizer throughput in power plants. The finer the grind, the lower the throughput. For a power plant to maintain combustion levels, throughput needs to be high. The problem of particle size is compounded for Alaskan coal since it has a low Hardgrove grindability index (HGI); that is, it is difficult to grind. If the thesis of this project is demonstrated, then Alaskan coal need not be ground to the industry standard, thereby alleviating somewhat the low HGI issue (and, hopefully, furthering the salability of Alaskan coal). This project studied the relationship between PSD and power plant efficiency, emissions, and mill power consumption for low-rank high-volatile-content Alaskan coal. The emissions studied were CO, CO{sub 2}, NO{sub x}, SO{sub 2}, and Hg (only two tests). The tested PSD range was 42 to 81 percent passing 76 microns. Within the tested range, there was very little correlation between PSD and power plant efficiency, CO, NO{sub x}, and SO{sub 2}. Hg emissions were very low and, therefore, did not allow comparison between grind sizes. Mill power consumption was lower for coarser grinds.

  14. CO2 Sequestration Potential of Texas Low-Rank Coals

    SciTech Connect (OSTI)

    Duane McVay; Walter Ayers, Jr.; Jerry Jensen; Jorge Garduno; Gonzola Hernandez; Rasheed Bello; Rahila Ramazanova

    2006-08-31T23:59:59.000Z

    Injection of CO{sub 2} in coalbeds is a plausible method of reducing atmospheric emissions of CO{sub 2}, and it can have the additional benefit of enhancing methane recovery from coal. Most previous studies have evaluated the merits of CO{sub 2} disposal in high-rank coals. The objective of this research was to determine the technical and economic feasibility of CO{sub 2} sequestration in, and enhanced coalbed methane (ECBM) recovery from, low-rank coals in the Texas Gulf Coast area. Our research included an extensive coal characterization program, including acquisition and analysis of coal core samples and well transient test data. We conducted deterministic and probabilistic reservoir simulation and economic studies to evaluate the effects of injectant fluid composition (pure CO{sub 2} and flue gas), well spacing, injection rate, and dewatering on CO{sub 2} sequestration and ECBM recovery in low-rank coals of the Calvert Bluff formation of the Texas Wilcox Group. Shallow and deep Calvert Bluff coals occur in two, distinct, coalbed gas petroleum systems that are separated by a transition zone. Calvert Bluff coals < 3,500 ft deep are part of a biogenic coalbed gas system. They have low gas content and are part of a freshwater aquifer. In contrast, Wilcox coals deeper than 3,500 ft are part of a thermogenic coalbed gas system. They have high gas content and are part of a saline aquifer. CO{sub 2} sequestration and ECBM projects in Calvert Bluff low-rank coals of East-Central Texas must be located in the deeper, unmineable coals, because shallow Wilcox coals are part of a protected freshwater aquifer. Probabilistic simulation of 100% CO{sub 2} injection into 20 feet of Calvert Bluff coal in an 80-acre 5-spot pattern indicates that these coals can store 1.27 to 2.25 Bcf of CO{sub 2} at depths of 6,200 ft, with an ECBM recovery of 0.48 to 0.85 Bcf. Simulation results of flue gas injection (87% N{sub 2}-13% CO{sub 2}) indicate that these same coals can store 0.34 to 0.59 Bcf of CO{sub 2} with an ECBM recovery of 0.68 to 1.20 Bcf. Economic modeling of CO{sub 2} sequestration and ECBM recovery indicates predominantly negative economic indicators for the reservoir depths (4,000 to 6,200 ft) and well spacings investigated, using natural gas prices ranging from $2 to $12 per Mscf and CO{sub 2} credits based on carbon market prices ranging from $0.05 to $1.58 per Mscf CO{sub 2} ($1.00 to $30.00 per ton CO{sub 2}). Injection of flue gas (87% N{sub 2} - 13% CO{sub 2}) results in better economic performance than injection of 100% CO{sub 2}. CO{sub 2} sequestration potential and methane resources in low-rank coals of the Lower Calvert Bluff formation in East-Central Texas are significant. The potential CO{sub 2} sequestration capacity of the coals ranges between 27.2 and 49.2 Tcf (1.57 and 2.69 billion tons), with a mean value of 38 Tcf (2.2 billion tons), assuming a 72.4% injection efficiency. Estimates of recoverable methane resources range between 6.3 and 13.6 Tcf, with a mean of 9.8 Tcf, assuming a 71.3% recovery factor. Moderate increases in gas prices and/or carbon credits could generate attractive economic conditions that, combined with the close proximity of many CO{sub 2} point sources near unmineable coalbeds, could enable commercial CO{sub 2} sequestration and ECBM projects in Texas low-rank coals. Additional studies are needed to characterize Wilcox regional methane coalbed gas systems and their boundaries, and to assess potential of other low-rank coal beds. Results from this study may be transferable to other low-rank coal formations and regions.

  15. ALGEBRAIC Zd-ACTIONS OF ENTROPY RANK ONE MANFRED EINSIEDLER AND DOUGLAS LIND

    E-Print Network [OSTI]

    Lind, Douglas A.

    ALGEBRAIC Zd-ACTIONS OF ENTROPY RANK ONE MANFRED EINSIEDLER AND DOUGLAS LIND AND DOUGLAS LIND 1. Introduction An algebraic Zd-action is an action of Zd

  16. Risk assessment in environmental management

    SciTech Connect (OSTI)

    Asante-Duah, D.K.

    1998-07-01T23:59:59.000Z

    This book is a straightforward exposition of US EPA-based procedures for the risk assessment and risk management of contaminated land, interwoven with discussions on some of the key fundamentals on the fate and transport of chemicals in the environment and the toxic action of environmental chemicals. The book is logically structured, commencing with a general overview of the principles of risk assessment and the interface with environmental legislation. There follows an introduction to environmental fate and transport, modeling, toxicology and uncertainty analysis, and a discussion of the elements of a risk assessment (site characterization, exposure analysis, toxic action and risk characterization), intake of a chemical with its environmental concentration and activity-related parameters such as inhalation rate and exposure time. The book concludes with a discussion on the derivation of risk-based action levels and remediation goals.

  17. Relative Risks Analysis in Nutritional Epidemiology

    E-Print Network [OSTI]

    Wang, Yanqing

    2014-08-15T23:59:59.000Z

    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 A.2 Proofs of Lemmas 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 A.3 More Details of Simulation Results in Chapter 2 . . . . . . . . . . . . 90 A.4 Bootstrapping Details . . . . . . . . . . . . . . . . . . . . . . . . . . 95... OF FIGURES FIGURE Page B.1 Relationship between the 95% confidence interval by using the inverse Fisher matrix and the number of points which involved in computing the derivative ?S?0.90,k`(?k`)/??Tk` and ?S?0.10,k`(?k`)/?? T k`. . . . . . . . 101 B.2...

  18. CO2 SEQUESTRATION POTENTIAL OF TEXAS LOW-RANK COALS

    SciTech Connect (OSTI)

    Duane A. Mcvay; Walter B. Ayers, Jr.; Jerry L. Jensen

    2004-02-01T23:59:59.000Z

    The objectives of this project are to evaluate the feasibility of carbon dioxide (CO{sub 2}) sequestration in Texas low-rank coals and to determine the potential for enhanced coalbed methane (CBM) recovery as an added benefit of sequestration. The primary objectives for this reporting period were to construct a coal geological model for reservoir analysis and to continue modeling studies of CO{sub 2} sequestration performance in coalbed methane reservoirs under various operational conditions. Detailed correlation of coal zones is important for reservoir analysis and modeling. Therefore, we interpreted and created isopleth maps of coal occurrences, and correlated individual coal seams within the coal bearing subdivisions of the Wilcox Group--the Hooper, Simsboro and Calvert Bluff formations. Preliminary modeling studies were run to determine if gravity effects would affect the performance of CO{sub 2} sequestration in coalbed methane reservoirs. Results indicated that gravity could adversely affect sweep efficiency and, thus, volumes of CO{sub 2} sequestered and methane produced in thick, vertically continuous coals. Preliminary modeling studies were also run to determine the effect of injection gas composition on sequestration in low-rank coalbeds. Injected gas composition was varied from pure CO{sub 2} to pure N{sub 2}, and results show that increasing N{sub 2} content degrades CO{sub 2} sequestration and methane production performance. We have reached a Data Exchange Agreement with Anadarko Petroleum Corporation. We are currently incorporating the Anadarko data into our work, and expect these data to greatly enhance the accuracy and value of our studies.

  19. CO2 Sequestration Potential of Texas Low-Rank Coals

    SciTech Connect (OSTI)

    Duane A. McVay; Walter B. Ayers Jr; Jerry L. Jensen

    2006-03-01T23:59:59.000Z

    The objectives of this project are to evaluate the feasibility of carbon dioxide (CO{sub 2}) sequestration in Texas low-rank coals and to determine the potential for enhanced coalbed methane (ECBM) recovery as an added benefit of sequestration. In this reporting period we revised all of the economic calculations, participated in technology transfer of project results, and began working on project closeout tasks in anticipation of the project ending December 31, 2005. In this research, we conducted five separate simulation investigations, or cases. These cases are (1) CO{sub 2} sequestration base case scenarios for 4,000-ft and 6,200-ft depth coal beds in the Lower Calvert Bluff Formation of east-central Texas, (2) sensitivity study of the effects of well spacing on sequestration, (3) sensitivity study of the effects of injection gas composition, (4) sensitivity study of the effects of injection rate, and (5) sensitivity study of the effects of coal dewatering prior to CO{sub 2} injection/sequestration. Results show that, in most cases, revenue from coalbed methane production does not completely offset the costs of CO{sub 2} sequestration in Texas low-rank coals, indicating that CO{sub 2} injection is not economically feasible for the ranges of gas prices and carbon credits investigated. The best economic performance is obtained with flue gas (13% CO{sub 2} - 87% N{sub 2}) injection, as compared to injection of 100% CO{sub 2} and a mixture of 50% CO{sub 2} and 50% N{sub 2}. As part of technology transfer for this project, we presented results at the West Texas Geological Society Fall Symposium in October 2005 and at the COAL-SEQ Forum in November 2005.

  20. AMERIND Risk Annual Conference and Trade Fair | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels DataEnergyDepartment of EnergyEnergyProposed -Systems |AMERIND Risk

  1. Necessary and Sufficient Conditions for Success of the Nuclear Norm Heuristic for Rank Minimization

    E-Print Network [OSTI]

    Recht, Ben

    Necessary and Sufficient Conditions for Success of the Nuclear Norm Heuristic for Rank Minimization that yield exact solutions. A popular heuristic algorithm replaces the rank function with the nuclear norm provide accurate predictions of the heuristic's performance in non-asymptotic scenarios. I. INTRODUCTION

  2. Determining factors behind the PageRank log-log plot Yana Volkovich

    E-Print Network [OSTI]

    Boucherie, Richard J.

    - tion through a stochastic equation inspired by the original definition of PageRank. Further, we use agreement with experimental data on three different sam- ples of the Web. Keywords PageRank, Power law, Recursive stochastic equations, Re- gular variation, Web graph MSC 2000 90B15, 68P10, 60J80 1. INTRODUCTION

  3. Tenure-Track Faculty (All Ranks) Assistant Professor/Associate Professor/Full Professor

    E-Print Network [OSTI]

    Tenure-Track Faculty (All Ranks) Assistant Professor/Associate Professor/Full Professor Mechanical for both teaching and research are being sought. Candidates for the rank of Assistant Professor should have- and nano-systems, advanced energy technologies, bio-inspired systems and robotics, and plasma science

  4. Preference Learning using the Choquet Integral: The Case of Multipartite Ranking

    E-Print Network [OSTI]

    Hllermeier, Eyke

    learning methods [48]. While a number of different types of ranking problems have been introducedPreference Learning using the Choquet Integral: The Case of Multipartite Ranking Ali Fallah Tehrani on Fuzzy Systems Abstract We propose a novel method for preference learning or, more specifically, learn

  5. HIGH RANK ELLIPTIC CURVES WITH PRESCRIBED TORSION GROUP OVER QUADRATIC FIELDS

    E-Print Network [OSTI]

    Dujella, Andrej

    HIGH RANK ELLIPTIC CURVES WITH PRESCRIBED TORSION GROUP OVER QUADRATIC FIELDS JULIN AGUIRRE for the torsion group of elliptic curves dened over quadratic number elds. We present examples of high rank elliptic curves with given torsion group which give the current records for most of the torsion groups

  6. HEALTH, SAFETY AND ENVIRONMENT MANAGEMENT SYSTEM : A METHOD FOR RANKING IMPACTS IN SMALL AND MEDIUM

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    99-57 HEALTH, SAFETY AND ENVIRONMENT MANAGEMENT SYSTEM : A METHOD FOR RANKING IMPACTS IN SMALL AND MEDIUM ENTERPRISES A. Accorsi', J.P. Pineau, A. Prats l. INERIS, Vemeuil-en-Halatte, France Key words : safety management System, ranking, health, safety, environment ABSTRACT ELF ATOCHEM and INERIS have

  7. ROBUST VIDEO RESTORATION BY JOINT SPARSE AND LOW RANK MATRIX APPROXIMATION

    E-Print Network [OSTI]

    Shen, Zuowei

    ROBUST VIDEO RESTORATION BY JOINT SPARSE AND LOW RANK MATRIX APPROXIMATION HUI JI, SIBIN HUANG, ZUOWEI SHEN, AND YUHONG XU Abstract. This paper presents a new video restoration scheme based domain, we formulate the video restoration problem as a joint sparse and low-rank matrix approximation

  8. Toward a Classification of the Ranks and Border Ranks of All (3,3,3) Trilinear Forms

    E-Print Network [OSTI]

    Allums, Derek

    2011-08-08T23:59:59.000Z

    transformations. Ng?s classification is up to this action. The first step is to move the problem of classification into projective space so we consider P(A?B?C). Note that we can also have ? ? Hom(B?,A?C) or ? ? Hom(C?,A?B) so without loss of generality only...)?b1?c1 +a3?b3?c2 +(?a3)?b2?c3. Proposition .43. R(T ) ? 7,R(T ) = 5. Proof. The naive approach yields an upper bound of 7 for the rank. 33 CHAPTER IV SUMMARY AND CONCLUSIONS Building on Ng?s classification of all ? ? C3?C3?C3 up to the action...

  9. CO{sub 2} SEQUESTRATION POTENTIAL OF TEXAS LOW-RANK COALS

    SciTech Connect (OSTI)

    Duane A. McVay; Walter B. Ayers Jr; Jerry L. Jensen

    2005-02-01T23:59:59.000Z

    The objectives of this project are to evaluate the feasibility of carbon dioxide (CO{sub 2}) sequestration in Texas low-rank coals and to determine the potential for enhanced coalbed methane (CBM) recovery as an added benefit of sequestration. There were three main objectives for this reporting period, which related to obtaining accurate parameters for reservoir model description and modeling reservoir performance of CO{sub 2} sequestration and enhanced coalbed methane recovery. The first objective was to collect and desorb gas from 10 sidewall core coal samples from an Anadarko Petroleum Corporation well (APCL2 well) at approximately 6,200-ft depth in the Lower Calvert Bluff Formation of the Wilcox Group in east-central Texas. The second objective was to measure sorptive capacities of these Wilcox coal samples for CO{sub 2}, CH{sub 4}, and N{sub 2}. The final objective was to contract a service company to perform pressure transient testing in Wilcox coal beds in a shut-in well, to determine permeability of deep Wilcox coal. Bulk density of the APCL2 well sidewall core samples averaged 1.332 g/cc. The 10 sidewall core samples were placed in 4 sidewall core canisters and desorbed. Total gas content of the coal (including lost gas and projected residual gas) averaged 395 scf/ton on an as-received basis. The average lost gas estimations were approximately 45% of the bulk sample total gas. Projected residual gas was 5% of in-situ gas content. Six gas samples desorbed from the sidewall cores were analyzed to determine gas composition. Average gas composition was approximately 94.3% methane, 3.0% ethane, and 0.7% propane, with traces of heavier hydrocarbon gases. Carbon dioxide averaged 1.7%. Coal from the 4 canisters was mixed to form one composite sample that was used for pure CO{sub 2}, CH{sub 4}, and N{sub 2} isotherm analyses. The composite sample was 4.53% moisture, 37.48% volatile matter, 9.86% ash, and 48.12% fixed carbon. Mean vitrinite reflectance was 0.54%. Coal rank was high-volatile C to B bituminous. Comparison of the desorbed gas content (395 scf/ton, as received) at reservoir pressure (2,697 psi) with the sorption isotherm indicates that Lower Calvert Bluff coal at this well site is oversaturated, but lost gas may have been overestimated. This high gas content suggests that little or no depressurization would be required to initiate methane production. Sorption isotherms results indicate that the sorptive capacity of CO{sub 2} is about 2.5 times that of CH{sub 4} at 1,000 psia. This ratio is similar to that of higher rank bituminous coals from other basins (e.g., Carroll, and Pashin, 2003), and it is very low in comparison to results of other low-rank coals and to the values that we used in our preliminary reservoir modeling. If this value from the APCL2 well is representative, Wilcox coals in this area will sequester less CO{sub 2} on a per ton basis than we had earlier inferred. However, because measured methane contents are higher, enhanced coalbed methane production potential is greater than we earlier inferred. Pressure transient testing for determining coal fracture permeability will be conducted soon by Pinnacle Technologies. The data from these analyses will be used to finalize our coal model for the reservoir simulation phase of the project.

  10. Relative deprivation and social movement participation

    E-Print Network [OSTI]

    Glasgow, Doris Wyette

    1986-01-01T23:59:59.000Z

    and Zelditch (1964) provide an illustration of the relative deprivation concept; Ego and Alter have the same income. Ego, hower, has a "lower ethnic rank" than Alter, Ego tries to interact with Alter, but is rebuffed. When Ego compares himself with Alter...

  11. 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....

  12. Risk Without Return

    E-Print Network [OSTI]

    Goldberg, Lisa R.; Mahmoud, Ola

    2013-01-01T23:59:59.000Z

    and Mitra, I. (2010). Extreme risk analysis. The Journal offrom the fact that the risk parity strategy was diversifiedboth in capital and in risk weights. Further research into

  13. Risk Dynamics?An Analysis for the Risk of Change

    E-Print Network [OSTI]

    Huang, Tailin

    2010-01-01T23:59:59.000Z

    Is Quantitative Risk Assessment?" Risk Analysis, Aubrey,quantitative methods of how people do science, engineering and risk analysisthe Quantitative Definition of Risk." Risk Analysis, 1(1),

  14. Enterprise Risk Management Program

    E-Print Network [OSTI]

    Hayden, Nancy J.

    Enterprise Risk Management Program Guide to Risk Assessment & Response August 16, 2012 #12; i ...........26 List of Figures Figure 1: The Risk Management Process.......................................................................................................12 #12; 1 Overview The risk management process--of identifying, analyzing, evaluating

  15. Credit Risk Analyst

    Broader source: Energy.gov [DOE]

    The incumbent in this position will serve as a Credit Risk Analyst in the Transacting and Credit Risk Management department of the Office of Risk Management. The Transacting and Credit Risk...

  16. CO2 Sequestration Potential of Texas Low-Rank Coals

    SciTech Connect (OSTI)

    Duane A. McVay; Walter B. Ayers, Jr.; Jerry L. Jensen

    2004-04-01T23:59:59.000Z

    The objectives of this project are to evaluate the feasibility of carbon dioxide (CO{sub 2}) sequestration in Texas low-rank coals and to determine the potential for enhanced coalbed methane (CBM) recovery as an added benefit of sequestration. The primary objectives for this reporting period were to construct a coal geological model for reservoir analysis and to continue acquisition of data pertinent to coal characterization that would help in determining the feasibility of carbon dioxide sequestration. Structural analysis and detailed correlation of coal zones are important for reservoir analysis and modeling. Evaluation of existing well logs indicates local structural complexity that complicates interpretations of continuity of the Wilcox Group coal zones. Therefore, we have begun searching for published structural maps for the areas of potential injection CO{sub 2}, near the coal-fired power plants. Preliminary evaluations of data received from Anadarko Petroleum Corporation suggest that coal properties and gas content and chemical composition vary greatly among coal seams. We are assessing the stratigraphic and geographic distributions and the weight of coal samples that Anadarko has provided to select samples for further laboratory analysis. Our goal is to perform additional isotherm analyses with various pure and/or mixed gases to enhance our characterization model. Additionally, we are evaluating opportunities for field determination of permeability with Anadarko, utilizing one of their wells.

  17. Equation of motion for incompressible mixed fluid driven by evaporation and its application to online rankings

    E-Print Network [OSTI]

    Kumiko Hattori; Tetsuya Hattori

    2008-05-17T23:59:59.000Z

    We give a unique classical solution to initial value problem for a system of partial differential equations for the densities of components of one dimensional incompressible fluid mixture driven by evaporation. Motivated by the known fact that the solution appears as an infinite particle limit of stochastic ranking processes, which is a simple stochastic model of time evolutions of e.g., Amazon Sales Ranks, we collected data from the web and performed statistical fits to our formula. The results suggest that the fluid equations and solutions may have an application in the analysis of online rankings.

  18. Empirical Evidence for the Relevance of Fractional Scoring in the Calculation of Percentile Rank Scores

    E-Print Network [OSTI]

    Schreiber, Michael

    2013-01-01T23:59:59.000Z

    Fractional scoring has been proposed to avoid inconsistencies in the attribution of publications to percentile rank classes. Uncertainties and ambiguities in the evaluation of percentile ranks can be demonstrated most easily with small datasets. But for larger datasets an often large number of papers with the same citation count leads to the same uncertainties and ambiguities which can be avoided by fractional scoring. This is demonstrated for four different empirical datasets with several thousand publications each which are assigned to 6 percentile rank classes. Only by utilizing fractional scoring the total score of all papers exactly reproduces the theoretical value in each case.

  19. Prioritizing Project Risks Using AHP

    SciTech Connect (OSTI)

    Thibadeau, Barbara M [ORNL] [ORNL

    2007-01-01T23:59:59.000Z

    This essay introduces the Analytic Hierarchy Process (AHP) as a method by which to rank project risks, in terms of importance as well as likelihood. AHP is way to handle quantifiable and/or intangible criteria in the decision making process. It is a multi-objective multi-criteria decision-making approach that is based on the idea of pair-wise comparisons of alternatives with respect to a given criterion (e.g., which alternative, A or B, is preferred and by how much more is it preferred) or with respect to an objective (e.g., which is more important, A or B, and by how much more is it important). This approach was pioneered by Thomas Saaty in the late 1970's. It has been suggested that a successful project is one that successfully manages risk and that project management is the management of uncertainty. Risk management relies on the quantification of uncertainty which, in turn, is predicated upon the accuracy of probabilistic approaches (in terms of likelihood as well as magnitude). In many cases, the appropriate probability distribution (or probability value) is unknown. And, researchers have shown that probability values are not made very accurately, that the use of verbal expressions is not a suitable alternative, that there is great variability in the use and interpretation of these values and that there is a great reluctance to assign them in the first place. Data from an ongoing project is used to show that AHP can be used to obtain these values, thus overcoming some of the problems associated with the direct assignment of discrete probability values. A novel method by which to calculate the consistency of the data is introduced. The AHP approach is easily implemented and, typically, offers results that are consistent with the decision maker's intuition.

  20. CAMPUS Updated 2/9/2012 OFFICE Safety & Risk Management

    E-Print Network [OSTI]

    de Lijser, Peter

    Page 1 CAMPUS Updated 2/9/2012 OFFICE Safety & Risk Management MAILING ADDRESS 9001 Stockdale Hwy Juli A. Smith, CIH Director of Safety & Risk Management (661) 654-2066 jsmith101@csub.edu Risk and Risk Management SAFETY RELATED FUNCTIONS SPECIFIC SAFETY FUNCTIONS RESPONSIBLE PERSON POSITION

  1. Risk Management, Mar 2012 Risk Management

    E-Print Network [OSTI]

    Risk Management, Mar 2012 Risk Management Conditions of Volunteer Service (Please send completed form to the Office of Risk Management) riskmanagement@uoregon.edu Fax: 541-346-7008 As a volunteer Tort Claims Act, ORS 30.260-300, and Oregon Department of Administrative Services Risk Management

  2. CANCER RISKS AM I AT RISK?

    E-Print Network [OSTI]

    Hardy, Christopher R.

    CANCER RISKS AM I AT RISK? It is often hard to explain why one person develops cancer and another does not. There are risk factors that could increase a person's likelihood of developing cancer, however, some people may have many of these risk factors and never get cancer. When thinking about your

  3. The Department of Industrial and Systems Engineering is accepting applications for open rank non-tenure track faculty positions for academic year 2014-2015. All positions require teaching undergraduate and/or

    E-Print Network [OSTI]

    The Department of Industrial and Systems Engineering is accepting applications for open rank non/or graduate courses related to Industrial and Systems Engineering, and service to the department. A successful of Industrial and Systems Engineering provides competitive compensation packages and benefits. To apply, please

  4. CO2 SEQUESTRATION POTENTIAL OF TEXAS LOW-RANK COALS

    SciTech Connect (OSTI)

    Duane A. McVay; Walter B. Ayers Jr.; Jerry L. Jensen

    2003-10-01T23:59:59.000Z

    The objectives of this project are to evaluate the feasibility of carbon dioxide (CO{sub 2}) sequestration in Texas low-rank coals and to determine the potential for enhanced coalbed methane (CBM) recovery as an added benefit of sequestration. The main objective for this reporting period was to further characterize the three areas selected as potential CO{sub 2} sequestration sites. Well-log data are critical for defining depth, thickness, number, and grouping of coal seams at the proposed sequestration sites. Thus, we purchased 12 hardcopy well logs (in addition to 15 well logs obtained during previous quarter) from a commercial source and digitized them to make coal-occurrence maps and cross sections. Detailed correlation of coal zones is important for reservoir analysis and modeling. Thus, we correlated and mapped Wilcox Group subdivisions--the Hooper, Simsboro and Calvert Bluff formations, as well as the coal-bearing intervals of the Yegua and Jackson formations in well logs. To assess cleat properties and describe coal characteristics, we made field trips to Big Brown and Martin Lake coal mines. This quarter we also received CO{sub 2} and methane sorption analyses of the Sandow Mine samples, and we are assessing the results. GEM, a compositional simulator developed by the Computer Modeling Group (CMG), was selected for performing the CO{sub 2} sequestration and enhanced CBM modeling tasks for this project. This software was used to conduct preliminary CO{sub 2} sequestration and methane production simulations in a 5-spot injection pattern. We are continuing to pursue a cooperative agreement with Anadarko Petroleum, which has already acquired significant relevant data near one of our potential sequestration sites.

  5. CO2 Sequestration Potential of Texas Low-Rank Coals

    SciTech Connect (OSTI)

    Duane A. McVay; Walter B. Ayers Jr; Jerry L. Jensen

    2003-07-01T23:59:59.000Z

    The objective of this project is to evaluate the feasibility of carbon dioxide (CO{sub 2}) sequestration in Texas low-rank coals and to determine the potential for enhanced coalbed methane (CBM) recovery as an added benefit of sequestration. The main objectives for this reporting period were to further characterize the three areas selected as potential test sites, to begin assessing regional attributes of natural coal fractures (cleats), which control coalbed permeability, and to interview laboratories for coal sample testing. An additional objective was to initiate discussions with an operating company that has interests in Texas coalbed gas production and CO{sub 2} sequestration potential, to determine their interest in participation and cost sharing in this project. Well-log data are critical for defining depth, thickness, number, and grouping of coal seams at the proposed sequestration sites. Therefore, we purchased 15 well logs from a commercial source to make coal-occurrence maps and cross sections. Log suites included gamma ray (GR), self potential (SP), resistivity, sonic, and density curves. Other properties of the coals in the selected areas were collected from published literature. To assess cleat properties and describe coal characteristics, we made field trips to a Jackson coal outcrop and visited Wilcox coal exposures at the Sandow surface mine. Coal samples at the Sandow mine were collected for CO{sub 2} and methane sorption analyses. We contacted several laboratories that specialize in analyzing coals and selected a laboratory, submitting the Sandow Wilcox coals for analysis. To address the issue of cost sharing, we had fruitful initial discussions with a petroleum corporation in Houston. We reviewed the objectives and status of this project, discussed data that they have already collected, and explored the potential for cooperative data acquisition and exchange in the future. We are pursuing a cooperative agreement with them.

  6. CO2 SEQUESTRATION POTENTIAL OF TEXAS LOW-RANK COALS

    SciTech Connect (OSTI)

    Duane A. McVay; Walter B. Ayers Jr.; Jerry L. Jensen

    2005-05-01T23:59:59.000Z

    The objectives of this project are to evaluate the feasibility of carbon dioxide (CO{sub 2}) sequestration in Texas low-rank coals and to determine the potential for enhanced coalbed methane (CBM) recovery as an added benefit of sequestration. The main objective for this reporting period was to perform pressure transient testing to determine permeability of deep Wilcox coal to use as additional, necessary data for modeling performance of CO{sub 2} sequestration and enhanced coalbed methane recovery. To perform permeability testing of the Wilcox coal, we worked with Anadarko Petroleum Corporation in selecting the well and intervals to test and in designing the pressure transient test. Anadarko agreed to allow us to perform permeability tests in coal beds in an existing shut-in well (Well APCT2). This well is located in the region of the Sam K. Seymour power station, a site that we earlier identified as a major point source of CO{sub 2} emissions. A service company, Pinnacle Technologies Inc. (Pinnacle) was contracted to conduct the tests in the field. Intervals tested were 2 coal beds with thicknesses of 3 and 7 feet, respectively, at approximately 4,100 ft depth in the Lower Calvert Bluff Formation of the Wilcox Group in east-central Texas. Analyses of pressure transient test data indicate that average values for coalbed methane reservoir permeability in the tested coals are between 1.9 and 4.2 mD. These values are in the lower end of the range of permeability used in the preliminary simulation modeling. These new coal fracture permeability data from the APCT2 well, along with the acquired gas compositional analyses and sorption capacities of CO{sub 2}, CH{sub 4}, and N{sub 2}, complete the reservoir description phase of the project. During this quarter we also continued work on reservoir and economic modeling to evaluate performance of CO{sub 2} sequestration and enhanced coalbed methane recovery.

  7. Health risks in perspective: Judging health risks of energy technologies. Revision 5/94

    SciTech Connect (OSTI)

    Rowe, M.D.

    1992-09-01T23:59:59.000Z

    The purpose of this report is to provide perspective on the various risks to which man is routinely exposed. It serves as a basis for understanding the meaning of quantitative risk estimates and for comparing new or newly-discovered risks with other, better-understood risks. Specific emphasis is placed on health risks of energy technologies. This report is not a risk assessment; nor does it contain instructions on how to do a risk assessment. Rather, it provides background information on how most of us think about risks and why it is difficult to do it rationally, it provides a philosophy and data with which to do a better job of judging risks more rationally, and it provides an overview of where risks of energy technologies fit within the spectrum of all risks. Much of the quantitative information provided here is on relative risk of dying of various causes. This is not because risk of dying is seen as the most important kind of risk, but because the statistics on mortality rates by cause are the highest quality data available on health risks in the general population.

  8. Multi-Pareto-Ranking Evolutionary Algorithm Wahabou Abdou, Christelle Bloch, Damien Charlet, and Francois Spies

    E-Print Network [OSTI]

    Boyer, Edmond

    Multi-Pareto-Ranking Evolutionary Algorithm Wahabou Abdou, Christelle Bloch, Damien Charlet to define the selection probability of each Pareto front hal-00940119,version1- #12;2 W. Abdou, C. Bloch, D

  9. Views from the River Front: Rio Grande Decision Makers Rank Water Conservation Strategies

    E-Print Network [OSTI]

    Silvy, Valeen; Lesikar, Bruce J.

    2005-10-18T23:59:59.000Z

    This publication details the results of a survey of elected city officials and water managers in the Rio Grande River Basin of Texas and New Mexico. The participants ranked water conservation strategies for their communities....

  10. ALGEBRAIC Z d ACTIONS OF ENTROPY RANK ONE MANFRED EINSIEDLER AND DOUGLAS LIND

    E-Print Network [OSTI]

    Lind, Douglas A.

    ALGEBRAIC Z d ­ACTIONS OF ENTROPY RANK ONE MANFRED EINSIEDLER AND DOUGLAS LIND Abstract. We of the Yale Mathematics Department. 1 #12; 2 MANFRED EINSIEDLER AND DOUGLAS LIND 1. Introduction An algebraic

  11. ALGEBRAIC Zd-ACTIONS OF ENTROPY RANK ONE MANFRED EINSIEDLER AND DOUGLAS LIND

    E-Print Network [OSTI]

    Lind, Douglas A.

    ALGEBRAIC Zd-ACTIONS OF ENTROPY RANK ONE MANFRED EINSIEDLER AND DOUGLAS LIND Abstract. We of the Yale Mathematics Department. 1 #12;2 MANFRED EINSIEDLER AND DOUGLAS LIND 1. Introduction An algebraic

  12. Comparison of value-added models for school ranking and classification: a Monte Carlo study

    E-Print Network [OSTI]

    Wang, Zhongmiao

    2009-05-15T23:59:59.000Z

    A Value-Added definition of school effectiveness calls for the evaluation of schools based on the unique contribution of schools to individual student academic growth. The estimates of value-added school effectiveness are usually used for ranking...

  13. Rank-1 accelerated illumination recovery in scanning diffractive imaging by transparency estimation.

    SciTech Connect (OSTI)

    Wu, Hau-Tieng

    2014-08-07T23:59:59.000Z

    Illumination retrieval in scanning diffractive imaging a.k.a. ptychography is challenging when the specimen is weakly scattering or surrounded by empty space. We describe a rank-1 acceleration method for weakly scattering or piecewise smooth specimens.

  14. Low-rank coal research. Quarterly technical progress report, April-June 1984

    SciTech Connect (OSTI)

    Not Available

    1984-08-01T23:59:59.000Z

    Papers in the quarterly technical progress report for the period April-June, 1984, of the Low-Rank Coal Research project have been entered individually into EDB and ERA (17 items). (LTN)

  15. An FPTAS for optimizing a class of low-rank functions over a polytope

    E-Print Network [OSTI]

    Mittal, Shashi

    We present a fully polynomial time approximation scheme (FPTAS) for optimizing a very general class of non-linear functions of low rank over a polytope. Our approximation scheme relies on constructing an approximate ...

  16. Tail universalities in rank distributions as an algebraic problem: the beta-like function

    E-Print Network [OSTI]

    Gerardo G. Naumis; Germinal Cocho

    2007-05-04T23:59:59.000Z

    Although power laws of the Zipf type have been used by many workers to fit rank distributions in different fields like in economy, geophysics, genetics, soft-matter, networks etc., these fits usually fail at the tails. Some distributions have been proposed to solve the problem, but unfortunately they do not fit at the same time both ending tails. We show that many different data in rank laws, like in granular materials, codons, author impact in scientific journal, etc. are very well fitted by a beta-like function. Then we propose that such universality is due to the fact that a system made from many subsystems or choices, imply stretched exponential frequency-rank functions which qualitatively and quantitatively can be fitted with the proposed beta-like function distribution in the limit of many random variables. We prove this by transforming the problem into an algebraic one: finding the rank of successive products of a given set of numbers.

  17. A Low Patch-Rank Interpretation of Texture Hayden Schaeffer and Stanley Osher

    E-Print Network [OSTI]

    Soatto, Stefano

    A Low Patch-Rank Interpretation of Texture Hayden Schaeffer and Stanley Osher University models have appeared in the literature, beginning with the work of Meyer [28], who first proposed

  18. Final report, BWR drywell debris transport Phenomena Identification and Ranking Tables (PIRTs)

    SciTech Connect (OSTI)

    Wilson, G.E. [Lockheed Idaho Technologies Co., Idaho Falls, ID (United States); Boyack, B.E. [Los Alamos National Lab., NM (United States); Leonard, M.T.; Williams, K.A.; Wolf, L.T.

    1997-09-01T23:59:59.000Z

    The Nuclear Regulatory Commission has issued a Regulatory Bulletin and accompanying Regulatory Guide (1.82, Rev. 2) which requires licensees of boiling water reactors to develop a specific plan of action (including hardware backfits, if necessary) to preclude the possibility of early emergency core cooling system strainer blockage following a postulated loss-of-coolant-accident. The postulated mechanism for strainer blockage is destruction of piping insulation in the vicinity of the break and subsequent transport of fragmented insulation to the wetwell. In the absence of more definitive information, the Regulatory Guide recommends that licensees assume a drywell debris transport fraction of 1.0. Accordingly, the Nuclear Regulatory Commission initiated research focused toward developing a technical basis to provide insights useful to regulatory oversight of licensee submittals associated with resolution of the postulated strainer blockage issue. Part of this program was directed towards experimental and analytical research leading to a more realistic specification of the debris transport through the drywell to the wetwell. To help focus this development into a cost effective effort, a panel, with broad based knowledge and experience, was formed to address the relative importance of the various phenomena that can be expected in plant response to postulated accidents that may produce strainer blockage. The resulting phenomena identification and ranking tables reported herein were used to help guide research. The phenomena occurring in boiling water reactors drywells was the specific focus of the panel, although supporting experimental data and calculations of debris transport fractions were considered.

  19. Confluent KZ equations for sl_N with Poincare rank 2 at infinity

    E-Print Network [OSTI]

    Hajime Nagoya; Juanjuan Sun

    2010-10-10T23:59:59.000Z

    We construct confluent KZ equations with Poincare rank 2 at infinity for the case of sl_N and the integral representation for the solutions. Hamiltonians of these confluent KZ equations are derived from suitable quantization of dlog tau constructed in the theory of monodromy preserving deformation by Jimbo, Miwa and Ueno. Our confluent KZ equations may be viewed as a quantization of monodromy preserving deformation with Poincare rank 2 at infinity.

  20. Full Rank Rational Demand Systems Jeffrey T. LaFrance Rulon D. Pope

    E-Print Network [OSTI]

    LaFrance, Jeffrey T.

    n= = = p (1) where : ,n ik ++ :kh ++ , 1, , , 1, , .i n k K = = 3 Define the nK ma- trix of price functions [ ]( ) ( )ik=A p p . The rank of (1) is the column rank of A(p), with nK (Gorman, 1981 of smooth demand systems are to solve the integrability problem for a set of demand equations or to use Roy

  1. CHAOTICITY OF THE STATIONARY DISTRIBUTION OF RANK-BASED INTERACTING DIFFUSIONS

    E-Print Network [OSTI]

    Abstract. The mean-field limit of systems of rank-based interacting diffusions is known to be described. For all n 1, consider the system of rank-based interacting diffusions, or particles, (1) i {1, . . ., n to the nonlinear (in McKean's sense) stochastic differential equation (2) dX(t) = b(Ft(X(t)))dt + dW(t), Ft(x) = P

  2. Low-rank coal research, Task 5.1. Topical report, April 1986--December 1992

    SciTech Connect (OSTI)

    Not Available

    1993-02-01T23:59:59.000Z

    This document is a topical progress report for Low-Rank Coal Research performed April 1986 - December 1992. Control Technology and Coal Preparation Research is described for Flue Gas Cleanup, Waste Management, Regional Energy Policy Program for the Northern Great Plains, and Hot-Gas Cleanup. Advanced Research and Technology Development was conducted on Turbine Combustion Phenomena, Combustion Inorganic Transformation (two sections), Liquefaction Reactivity of Low-Rank Coals, Gasification Ash and Slag Characterization, and Coal Science. Combustion Research is described for Atmospheric Fluidized-Bed Combustion, Beneficiation of Low-Rank Coals, Combustion Characterization of Low-Rank Fuels (completed 10/31/90), Diesel Utilization of Low-Rank Coals (completed 12/31/90), Produce and Characterize HWD (hot-water drying) Fuels for Heat Engine Applications (completed 10/31/90), Nitrous Oxide Emission, and Pressurized Fluidized-Bed Combustion. Liquefaction Research in Low-Rank Coal Direct Liquefaction is discussed. Gasification Research was conducted in Production of Hydrogen and By-Products from Coals and in Sulfur Forms in Coal.

  3. Low-rank coal study. Volume 4. Regulatory, environmental, and market analyses

    SciTech Connect (OSTI)

    Not Available

    1980-11-01T23:59:59.000Z

    The regulatory, environmental, and market constraints to development of US low-rank coal resources are analyzed. Government-imposed environmental and regulatory requirements are among the most important factors that determine the markets for low-rank coal and the technology used in the extraction, delivery, and utilization systems. Both state and federal controls are examined, in light of available data on impacts and effluents associated with major low-rank coal development efforts. The market analysis examines both the penetration of existing markets by low-rank coal and the evolution of potential markets in the future. The electric utility industry consumes about 99 percent of the total low-rank coal production. This use in utility boilers rose dramatically in the 1970's and is expected to continue to grow rapidly. In the late 1980's and 1990's, industrial direct use of low-rank coal and the production of synthetic fuels are expected to start growing as major new markets.

  4. PRA and Risk Informed Analysis

    SciTech Connect (OSTI)

    Bernsen, Sidney A.; Simonen, Fredric A.; Balkey, Kenneth R.

    2006-01-01T23:59:59.000Z

    The Boiler and Pressure Vessel Code (BPVC) of the American Society of Mechanical Engineers (ASME) has introduced a risk based approach into Section XI that covers Rules for Inservice Inspection of Nuclear Power Plant Components. The risk based approach requires application of the probabilistic risk assessments (PRA). Because no industry consensus standard existed for PRAs, ASME has developed a standard to evaluate the quality level of an available PRA needed to support a given risk based application. The paper describes the PRA standard, Section XI application of PRAs, and plans for broader applications of PRAs to other ASME nuclear codes and standards. The paper addresses several specific topics of interest to Section XI. Important consideration are special methods (surrogate components) used to overcome the lack of PRA treatments of passive components in PRAs. The approach allows calculations of conditional core damage probabilities both for component failures that cause initiating events and failures in standby systems that decrease the availability of these systems. The paper relates the explicit risk based methods of the new Section XI code cases to the implicit consideration of risk used in the development of Section XI. Other topics include the needed interactions of ISI engineers, plant operating staff, PRA specialists, and members of expert panels that review the risk based programs.

  5. Importance and sensitivity of parameters affecting the Zion Seismic Risk

    SciTech Connect (OSTI)

    George, L.L.; O'Connell, W.J.

    1985-06-01T23:59:59.000Z

    This report presents the results of a study on the importance and sensitivity of structures, systems, equipment, components and design parameters used in the Zion Seismic Risk Calculations. This study is part of the Seismic Safety Margins Research Program (SSMRP) supported by the NRC Office of Nuclear Regulatory Research. The objective of this study is to provide the NRC with results on the importance and sensitivity of parameters used to evaluate seismic risk. These results can assist the NRC in making decisions dealing with the allocation of research resources on seismic issues. This study uses marginal analysis in addition to importance and sensitivity analysis to identify subject areas (input parameter areas) for improvements that reduce risk, estimate how much the improvement dfforts reduce risk, and rank the subject areas for improvements. Importance analysis identifies the systems, components, and parameters that are important to risk. Sensitivity analysis estimates the change in risk per unit improvement. Marginal analysis indicates the reduction in risk or uncertainty for improvement effort made in each subject area. The results described in this study were generated using the SEISIM (Systematic Evaluation of Important Safety Improvement Measures) and CHAIN computer codes. Part 1 of the SEISIM computer code generated the failure probabilities and risk values. Part 2 of SEISIM, along with the CHAIN computer code, generated the importance and sensitivity measures.

  6. Integrated risk information system (IRIS)

    SciTech Connect (OSTI)

    Tuxen, L. [Environmental Protection Agency, Washington, DC (United States)

    1990-12-31T23:59:59.000Z

    The Integrated Risk Information System (IRIS) is an electronic information system developed by the US Environmental Protection Agency (EPA) containing information related to health risk assessment. IRIS is the Agency`s primary vehicle for communication of chronic health hazard information that represents Agency consensus following comprehensive review by intra-Agency work groups. The original purpose for developing IRIS was to provide guidance to EPA personnel in making risk management decisions. This original purpose for developing IRIS was to guidance to EPA personnel in making risk management decisions. This role has expanded and evolved with wider access and use of the system. IRIS contains chemical-specific information in summary format for approximately 500 chemicals. IRIS is available to the general public on the National Library of Medicine`s Toxicology Data Network (TOXNET) and on diskettes through the National Technical Information Service (NTIS).

  7. Photovoltaic Degradation Risk: Preprint

    SciTech Connect (OSTI)

    Jordan, D. C.; Kurtz, S. R.

    2012-04-01T23:59:59.000Z

    The ability to accurately predict power delivery over the course of time is of vital importance to the growth of the photovoltaic (PV) industry. Important cost drivers include the efficiency with which sunlight is converted into power, how this relationship changes over time, and the uncertainty in this prediction. An accurate quantification of power decline over time, also known as degradation rate, is essential to all stakeholders - utility companies, integrators, investors, and researchers alike. In this paper we use a statistical approach based on historical data to quantify degradation rates, discern trends and quantify risks related to measurement uncertainties, number of measurements and methodologies.

  8. CO2 SEQUESTRATION POTENTIAL OF TEXAS LOW-RANK COALS

    SciTech Connect (OSTI)

    Duane A. McVay; Walter B. Ayers, Jr.; Jerry L. Jensen

    2004-07-01T23:59:59.000Z

    The objectives of this project are to evaluate the feasibility of carbon dioxide (CO{sub 2}) sequestration in Texas low-rank coals and to determine the potential for enhanced coalbed methane (CBM) recovery as an added benefit of sequestration. The main tasks for this reporting period were to correlate well logs and refine coal property maps, evaluate methane content and gas composition of Wilcox Group coals, and initiate discussions concerning collection of additional, essential data with Anadarko. To assess the volume of CO{sub 2} that may be sequestered and volume of methane that can be produced in the vicinity of the proposed Sam Seymour sequestration site, we used approximately 200 additional wells logs from Anadarko Petroleum Corp. to correlate and map coal properties of the 3 coal-bearing intervals of Wilcox group. Among the maps we are making are maps of the number of coal beds, number of coal beds greater than 5 ft thick, and cumulative coal thickness for each coal interval. This stratigraphic analysis validates the presence of abundant coal for CO{sub 2} sequestration in the Wilcox Group in the vicinity of Sam Seymour power plant. A typical wellbore in this region may penetrate 20 to 40 coal beds with cumulative coal thickness between 80 and 110 ft. Gas desorption analyses of approximately 75 coal samples from the 3 Wilcox coal intervals indicate that average methane content of Wilcox coals in this area ranges between 216 and 276 scf/t, basinward of the freshwater boundary indicated on a regional hydrologic map. Vitrinite reflectance data indicate that Wilcox coals are thermally immature for gas generation in this area. Minor amounts of biogenic gas may be present, basinward of the freshwater line, but we infer that most of the Wilcox coalbed gas in the deep coal beds is migrated thermogenic gas. Analysis based on limited data suggest that sites for CO{sub 2} sequestration and enhanced coalbed gas recovery should be located basinward of the Wilcox freshwater contour, where methane content is high and the freshwater aquifer can be avoided.

  9. Risk Management Strategy Introduction

    E-Print Network [OSTI]

    Edinburgh, University of

    Risk Management Strategy Introduction 1. The risk of adverse consequences is inherent in all activity. Dynamic enterprise will inevitably create new risks. Risk management is about ensuring that all significant relevant risks are understood and prioritised as part of normal management

  10. High Performance Lipoprotein Profiling for Cardiovascular Risk Assessment

    E-Print Network [OSTI]

    Larner, Craig

    2012-10-19T23:59:59.000Z

    With the severity of cardiovascular disease (CVD) and the related mortality rate to this disease, new methods are necessary for risk assessment and treatment prior to the onset of the disease. The current paradigm in CVD risk assessment has shifted...

  11. Low-rank coal study : national needs for resource development. Volume 2. Resource characterization

    SciTech Connect (OSTI)

    Not Available

    1980-11-01T23:59:59.000Z

    Comprehensive data are presented on the quantity, quality, and distribution of low-rank coal (subbituminous and lignite) deposits in the United States. The major lignite-bearing areas are the Fort Union Region and the Gulf Lignite Region, with the predominant strippable reserves being in the states of North Dakota, Montana, and Texas. The largest subbituminous coal deposits are in the Powder River Region of Montana and Wyoming, The San Juan Basin of New Mexico, and in Northern Alaska. For each of the low-rank coal-bearing regions, descriptions are provided of the geology; strippable reserves; active and planned mines; classification of identified resources by depth, seam thickness, sulfur content, and ash content; overburden characteristics; aquifers; and coal properties and characteristics. Low-rank coals are distinguished from bituminous coals by unique chemical and physical properties that affect their behavior in extraction, utilization, or conversion processes. The most characteristic properties of the organic fraction of low-rank coals are the high inherent moisture and oxygen contents, and the correspondingly low heating value. Mineral matter (ash) contents and compositions of all coals are highly variable; however, low-rank coals tend to have a higher proportion of the alkali components CaO, MgO, and Na/sub 2/O. About 90% of the reserve base of US low-rank coal has less than one percent sulfur. Water resources in the major low-rank coal-bearing regions tend to have highly seasonal availabilities. Some areas appear to have ample water resources to support major new coal projects; in other areas such as Texas, water supplies may be constraining factor on development.

  12. Risk Management in Product Design: Current State, Conceptual Model and Future Research

    E-Print Network [OSTI]

    Oehmen, Josef

    Risk management is an important element of product design. It helps to minimize the project- and product-related risks such as project budget and schedule overrun, or missing product cost and quality targets. Risk management ...

  13. BUILDING A RISK MANAGEMENT PLAN BUILDING A RISK MANAGEMENT PL LDING A RISK MANAGEMENT PLAN BUILDING A RISK MANAGEMENT PLAN

    E-Print Network [OSTI]

    Florida, University of

    BUILDING A RISK MANAGEMENT PLAN BUILDING A RISK MANAGEMENT PL LDING A RISK MANAGEMENT PLAN BUILDING A RISK MANAGEMENT PLAN MANAGEMENT PLAN BUILDING A RISK MANAGEMENT PLAN BUILDING A R RISK MANAGEMENT PLAN BUILDING A RISK MANAGEMENT PLAN BUILDIN T PLAN BUILDING A RISK MANAGEMENT PLAN BUILDING A RISK MANAGEM

  14. Assessing node risk and vulnerability in epidemics on networks

    E-Print Network [OSTI]

    Rogers, Tim

    2015-01-01T23:59:59.000Z

    Which nodes are most vulnerable to an epidemic spreading through a network, and which carry the highest risk of causing a major outbreak if they are the source of the infection? Here we show how these questions can be answered to good approximation using the cavity method. Several curious properties of node vulnerability and risk are explored: some nodes are more vulnerable than others to weaker infections, yet less vulnerable to stronger ones; a node is always more likely to be caught in an outbreak than it is to start one, except when the disease has a deterministic lifetime; the rank order of node risk depends on the details of the distribution of infectious periods.

  15. Enterprise Risk Management Framework

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

    Framework The Enterprise Risk Management (ERM) framework includes four steps: identify the risks, determine the probability and impact of each one, identify controls that are...

  16. CO2 SEQUESTRATION POTENTIAL OF TEXAS LOW-RANK COALS

    SciTech Connect (OSTI)

    Duane A. McVay; Walter B. Ayers Jr; Jerry L. Jensen

    2004-11-01T23:59:59.000Z

    The objectives of this project are to evaluate the feasibility of carbon dioxide (CO{sub 2}) sequestration in Texas low-rank coals and to determine the potential for enhanced coalbed methane (CBM) recovery as an added benefit of sequestration. there were two main objectives for this reporting period. first, they wanted to collect wilcox coal samples from depths similar to those of probable sequestration sites, with the objective of determining accurate parameters for reservoir model description and for reservoir simulation. The second objective was to pursue opportunities for determining permeability of deep Wilcox coal to use as additional, necessary data for modeling reservoir performance during CO{sub 2} sequestration and enhanced coalbed methane recovery. In mid-summer, Anadarko Petroleum Corporation agreed to allow the authors to collect Wilcox Group coal samples from a well that was to be drilled to the Austin Chalk, which is several thousand feet below the Wilcox. In addition, they agreed to allow them to perform permeability tests in coal beds in an existing shut-in well. Both wells are in the region of the Sam K. Seymour power station, a site that they earlier identified as a major point source of CO{sub 2}. They negotiated contracts for sidewall core collection and core analyses, and they began discussions with a service company to perform permeability testing. To collect sidewall core samples of the Wilcox coals, they made structure and isopach maps and cross sections to select coal beds and to determine their depths for coring. On September 29, 10 sidewall core samples were obtained from 3 coal beds of the Lower Calvert Bluff Formation of the Wilcox Group. The samples were desorbed in 4 sidewall core canisters. Desorbed gas samples were sent to a laboratory for gas compositional analyses, and the coal samples were sent to another laboratory to measure CO{sub 2}, CH{sub 4}, and N{sub 2} sorption isotherms. All analyses should be finished by the end of December. A preliminary report shows methane content values for the desorbed coal samples ranged between 330 and 388 scf/t., on ''as received'' basis. Residual gas content of the coals was not included in the analyses, which results in an approximate 5-10% underestimation of in-situ gas content. Coal maps indicate that total coal thickness is 40-70 ft in the Lower Calvert Bluff Formation of the Wilcox Group in the vicinity of the Sam K. Seymour power plant. A conservative estimate indicates that methane in place for a well on 160-acre spacing is approximately 3.5 Bcf in Lower Calvert Bluff coal beds. When they receive sorption isotherm data from the laboratory, they will determine the amount of CO{sub 2} that it may be possible to sequester in Wilcox coals. In December, when the final laboratory and field test data are available, they will complete the reservoir model and begin to simulate CO{sub 2} sequestration and enhanced CH{sub 4} production.

  17. CO2 Sequestration Potential of Texas Low-Rank Coals

    SciTech Connect (OSTI)

    Duane A. McVay; Walter B. Ayers Jr; Jerry L. Jensen

    2005-10-01T23:59:59.000Z

    The objectives of this project are to evaluate the feasibility of carbon dioxide (CO{sub 2}) sequestration in Texas low-rank coals and to determine the potential for enhanced coalbed methane (ECBM) recovery as an added benefit of sequestration. The main objectives for this reporting period were to perform reservoir simulation and economic sensitivity studies to (1) determine the effects of injection gas composition, (2) determine the effects of injection rate, and (3) determine the effects of coal dewatering prior to CO{sub 2} injection on CO{sub 2} sequestration in the Lower Calvert Bluff Formation (LCB) of the Wilcox Group coals in east-central Texas. To predict CO{sub 2} sequestration and ECBM in LCB coal beds for these three sensitivity studies, we constructed a 5-spot pattern reservoir simulation model and selected reservoir parameters representative of a typical depth, approximately 6,200-ft, of potential LCB coalbed reservoirs in the focus area of East-Central Texas. Simulation results of flue gas injection (13% CO{sub 2} - 87% N{sub 2}) in an 80-acre 5-spot pattern (40-ac well spacing) indicate that LCB coals with average net thickness of 20 ft can store a median value of 0.46 Bcf of CO{sub 2} at depths of 6,200 ft, with a median ECBM recovery of 0.94 Bcf and median CO{sub 2} breakthrough time of 4,270 days (11.7 years). Simulation of 100% CO{sub 2} injection in an 80-acre 5-spot pattern indicated that these same coals with average net thickness of 20 ft can store a median value of 1.75 Bcf of CO{sub 2} at depths of 6,200 ft with a median ECBM recovery of 0.67 Bcf and median CO{sub 2} breakthrough time of 1,650 days (4.5 years). Breakthrough was defined as the point when CO{sub 2} comprised 5% of the production stream for all cases. The injection rate sensitivity study for pure CO{sub 2} injection in an 80-acre 5-spot pattern at 6,200-ft depth shows that total volumes of CO{sub 2} sequestered and methane produced do not have significant sensitivity to injection rate. The main difference is in timing, with longer breakthrough times resulting as injection rate decreases. Breakthrough times for 80-acre patterns (40-acre well spacing) ranged from 670 days (1.8 years) to 7,240 days (19.8 years) for the reservoir parameters and well operating conditions investigated. The dewatering sensitivity study for pure CO{sub 2} injection in an 80-acre 5-spot pattern at 6,200-ft depth shows that total volumes of CO{sub 2} sequestered and methane produced do not have significant sensitivity to dewatering prior to CO{sub 2} injection. As time to start CO{sub 2} injection increases, the time to reach breakthrough also increases. Breakthrough times for 80-acre patterns (40-acre well spacing) ranged from 850 days (2.3 years) to 5,380 days (14.7 years) for the reservoir parameters and well injection/production schedules investigated. Preliminary economic modeling results using a gas price of $7-$8 per Mscf and CO{sub 2} credits of $1.33 per ton CO{sub 2} indicate that injection of flue gas (87% N{sub 2}-13% CO{sub 2}) and 50% N{sub 2}-50% CO{sub 2} are more economically viable than injecting 100% CO{sub 2}. Results also indicate that injection rate and duration and timing of dewatering prior to CO{sub 2} injection have no significant effect on the economic viability of the project(s).

  18. Low rank approach to computing first and higher order derivatives using automatic differentiation

    SciTech Connect (OSTI)

    Reed, J. A.; Abdel-Khalik, H. S. [North Carolina State Univ., Dept. of Nuclear Engineering, Raleigh, NC 27695-7909 (United States); Utke, J. [Mathematics and Computer Science Div., Argonne National Laboratory, Argonne, IL 60439 (United States)

    2012-07-01T23:59:59.000Z

    This manuscript outlines a new approach for increasing the efficiency of applying automatic differentiation (AD) to large scale computational models. By using the principles of the Efficient Subspace Method (ESM), low rank approximations of the derivatives for first and higher orders can be calculated using minimized computational resources. The output obtained from nuclear reactor calculations typically has a much smaller numerical rank compared to the number of inputs and outputs. This rank deficiency can be exploited to reduce the number of derivatives that need to be calculated using AD. The effective rank can be determined according to ESM by computing derivatives with AD at random inputs. Reduced or pseudo variables are then defined and new derivatives are calculated with respect to the pseudo variables. Two different AD packages are used: OpenAD and Rapsodia. OpenAD is used to determine the effective rank and the subspace that contains the derivatives. Rapsodia is then used to calculate derivatives with respect to the pseudo variables for the desired order. The overall approach is applied to two simple problems and to MATWS, a safety code for sodium cooled reactors. (authors)

  19. Modeling of Supply Chain Risk Under Disruptions with Performance Measurement and Robustness Analysis

    E-Print Network [OSTI]

    Nagurney, Anna

    . The model formulation captures supply- side risk as well as demand-side risk, along with uncertainty supply-side disruption risks, transportation and other cost risks, and demand-side uncertainty within, the focus of research has been on "demand-side" risk, which is related to fluctuations in the demand

  20. Screening Analysis for the Environmental Risk Evaluation System Task 2.1.1.2: Evaluating Effects of Stressors Fiscal Year 2011 Progress Report - Environmental Effects of Marine and Hydrokinetic Energy

    SciTech Connect (OSTI)

    Copping, Andrea E.; Blake, Kara M.; Anderson, Richard M.; Zdanski, Laura C.; Gill, Gary A.; Ward, Jeffrey A.

    2011-09-01T23:59:59.000Z

    Potential environmental effects of marine and hydrokinetic (MHK) energy development are not well understood, and yet regulatory agencies are required to make decisions in spite of substantial uncertainty about environmental impacts and their long-term consequences. An understanding of risks associated with interactions between MHK installations and aquatic receptors, including animals, habitats, and ecosystems, can help define key uncertainties and focus regulatory actions and scientific studies on interactions of most concern. As a first step in developing the Pacific Northwest National Laboratory (PNNL) Environmental Risk Evaluation System (ERES), PNNL scientists conducted a preliminary risk screening analysis on three initial MHK cases. During FY 2011, two additional cases were added: a tidal project in the Gulf of Maine using Ocean Renewable Power Company TidGenTM turbines and a wave project planned for the coast of Oregon using Aquamarine Oyster surge devices. Through an iterative process, the screening analysis revealed that top-tier stressors in the two FY 2011 cases were the dynamic effects of the device (e.g., strike), accidents/disasters, and effects of the static physical presence of the device (e.g., habitat alteration). Receptor interactions with these stressors at the highest tiers of risk were dominated by threatened and endangered animals. Risk to the physical environment from changes in flow regime also ranked high. Peer review of this process and results will be conducted in early FY 2012. The ERES screening analysis provides an analysis of vulnerability of environmental receptors to stressors associated with MHK installations, probability analysis is needed to determine specific risk levels to receptors. Risk has two components: (1) The likelihood, or probability, of the occurrence of a given interaction or event, and (2) the potential consequence if that interaction or event were to occur. During FY 2011, the ERES screening analysis focused primarily on the second component of risk, consequence, with focused probability analysis for interactions where data was sufficient for probability modeling. Consequence analysis provides an assessment of vulnerability of environmental receptors to stressors associated with MHK installations. Probability analysis is needed to determine specific risk levels to receptors and requires significant data inputs to drive risk models. During FY 2011, two stressor-receptor interactions were examined for the probability of occurrence. The two interactions (spill probability due to an encounter between a surface vessel and an MHK device; and toxicity from anti-biofouling paints on MHK devices) were seen to present relatively low risks to marine and freshwater receptors of greatest concern in siting and permitting MHK devices. A third probability analysis was scoped and initial steps taken to understand the risk of encounter between marine animals and rotating turbine blades. This analysis will be completed in FY 2012.

  1. Work plan for the High Ranking Facilities Deactivation Project at Oak Ridge National Laboratory, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    NONE

    1996-03-01T23:59:59.000Z

    The High Ranking Facilities Deactivation Project (HRFDP), commissioned by the US Department of Energy Nuclear Materials and Facility Stabilization Program, is to place four primary high-risk surplus facilities with 28 associated ancillary facilities at Oak Ridge National Laboratory in a safe, stable, and environmentally sound condition as rapidly and economically as possible. The facilities will be deactivated and left in a condition suitable for an extended period of minimized surveillance and maintenance (S and M) prior to decontaminating and decommissioning (D and D). These four facilities include two reactor facilities containing spent fuel. One of these reactor facilities also contains 55 tons of sodium with approximately 34 tons containing activated sodium-22, 2.5 tons of lithium hydride, approximately 100 tons of potentially contaminated lead, and several other hazardous materials as well as bulk quantities of contaminated scrap metals. The other two facilities to be transferred include a facility with a bank of hot cells containing high levels of transferable contamination and also a facility containing significant quantities of uranyl nitrate and quantities of transferable contamination. This work plan documents the objectives, technical requirements, and detailed work plans--including preliminary schedules, milestones, and conceptual FY 1996 cost estimates--for the Oak Ridge National Laboratory (ORNL). This plan has been developed by the Environmental Restoration (ER) Program of Lockheed Martin Energy Systems (Energy Systems) for the US Department of Energy (DOE) Oak Ridge Operations Office (ORO).

  2. Using variable importance measures from causal inference to rank risk factors of schistosomiasis infection in a rural setting in China

    E-Print Network [OSTI]

    Sudat, Sylvia EK; Carlton, Elizabeth J; Seto, Edmund YW; Spear, Robert C; Hubbard, Alan E

    2010-01-01T23:59:59.000Z

    cleaning and water diverting, planting rice, harvesting ricehad any water contact associated with rice harvesting, ricewater contact activities will be referred to subsequently as laundry, tool washing, bathing, swimming, ditch digging, rice planting, rice harvesting,

  3. Screening and ranking framework (SRF) for geologic CO2 storage site selection on the basis of HSE risk

    E-Print Network [OSTI]

    Oldenburg, Curtis M.

    2008-01-01T23:59:59.000Z

    GC (1988) Santa Barbara and Ventura Basins. Coast Geol. Soc.better you can engineer around the deficiencies. Ventura OilField The Ventura Oil Field taps reservoirs in young folds

  4. Screening and ranking framework (SRF) for geologic CO2 storage site selection on the basis of HSE risk

    E-Print Network [OSTI]

    Oldenburg, Curtis M.

    2008-01-01T23:59:59.000Z

    of Conservation, Division of Oil and Gas 53(2)-Part2: 25-33.EA, editors. Atlas of oil and gas fields, Structural TrapsPetroleum Geology, Atlas of Oil and Gas Fields, AAPG, Tulsa

  5. Marriage, Rank, and Seasonal Migration: Fractality in Social Structure

    E-Print Network [OSTI]

    White, Douglas R.

    ruptures of orderly relations. Factions and factionalism are a product of the latter kind. They can, factionalism, like competition, invokes the emergence of a set of rules or guides for disputants that provide conditions that often result in the formation of factions and raise questions of where potential mediators

  6. Next Generation Nuclear Plant Phenomena Identification and Ranking Tables (PIRTs) Volume 4: High-Temperature Materials PIRTs

    SciTech Connect (OSTI)

    Corwin, William R [ORNL; Ballinger, R. [Massachusetts Institute of Technology (MIT); Majumdar, S. [Argonne National Laboratory (ANL); Weaver, K. D. [Idaho National Laboratory (INL)

    2008-03-01T23:59:59.000Z

    The Phenomena Identification and Ranking Table (PIRT) technique was used to identify safety-relevant/safety-significant phenomena and assess the importance and related knowledge base of high-temperature structural materials issues for the Next Generation Nuclear Plant (NGNP), a very high temperature gas-cooled reactor (VHTR). The major aspects of materials degradation phenomena that may give rise to regulatory safety concern for the NGNP were evaluated for major structural components and the materials comprising them, including metallic and nonmetallic materials for control rods, other reactor internals, and primary circuit components; metallic alloys for very high-temperature service for heat exchangers and turbomachinery, metallic alloys for high-temperature service for the reactor pressure vessel (RPV), other pressure vessels and components in the primary and secondary circuits; and metallic alloys for secondary heat transfer circuits and the balance of plant. These materials phenomena were primarily evaluated with regard to their potential for contributing to fission product release at the site boundary under a variety of event scenarios covering normal operation, anticipated transients, and accidents. Of all the high-temperature metallic components, the one most likely to be heavily challenged in the NGNP will be the intermediate heat exchanger (IHX). Its thin, internal sections must be able to withstand the stresses associated with thermal loading and pressure drops between the primary and secondary loops under the environments and temperatures of interest. Several important materials-related phenomena related to the IHX were identified, including crack initiation and propagation; the lack of experience of primary boundary design methodology limitations for new IHX structures; and manufacturing phenomena for new designs. Specific issues were also identified for RPVs that will likely be too large for shop fabrication and transportation. Validated procedures for on-site welding, post-weld heat treatment (PWHT), and inspections will be required for the materials of construction. High-importance phenomena related to the RPV include crack initiation and subcritical crack growth; field fabrication process control; property control in heavy sections; and the maintenance of high emissivity of the RPV materials over their service lifetime to enable passive heat rejection from the reactor core. All identified phenomena related to the materials of construction for the IHX, RPV, and other components were evaluated and ranked for their potential impact on reactor safety.

  7. Process to improve boiler operation by supplemental firing with thermally beneficiated low rank coal

    DOE Patents [OSTI]

    Sheldon, Ray W. (Huntley, MT)

    2001-01-01T23:59:59.000Z

    The invention described is a process for improving the performance of a commercial coal or lignite fired boiler system by supplementing its normal coal supply with a controlled quantity of thermally beneficiated low rank coal, (TBLRC). This supplemental TBLRC can be delivered either to the solid fuel mill (pulverizer) or directly to the coal burner feed pipe. Specific benefits are supplied based on knowledge of equipment types that may be employed on a commercial scale to complete the process. The thermally beneficiated low rank coal can be delivered along with regular coal or intermittently with regular coal as the needs require.

  8. Transportation costs for new fuel forms produced from low rank US coals

    SciTech Connect (OSTI)

    Newcombe, R.J.; McKelvey, D.G. (TMS, Inc., Germantown, MD (USA)); Ruether, J.A. (USDOE Pittsburgh Energy Technology Center, PA (USA))

    1990-09-01T23:59:59.000Z

    Transportation costs are examined for four types of new fuel forms (solid, syncrude, methanol, and slurry) produced from low rank coals found in the lower 48 states of the USA. Nine low rank coal deposits are considered as possible feedstocks for mine mouth processing plants. Transportation modes analyzed include ship/barge, pipelines, rail, and truck. The largest potential market for the new fuel forms is coal-fired utility boilers without emission controls. Lowest cost routes from each of the nine source regions to supply this market are determined. 12 figs.

  9. Sandia National Laboratories: Sandia Co-Hosts "Climate Risk Forum...

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

    insure property and livelihoods against climate-related risks." To begin the forum, three panels gave presentations: The current state of climate research. Kate Ricke (Stanford...

  10. Optimization Online - Robust risk adjustment in health insurance

    E-Print Network [OSTI]

    Tengjiao Xiao

    2014-08-08T23:59:59.000Z

    Aug 8, 2014 ... Abstract: Risk adjustment is used to calibrate payments to health plans based on the relative health status of insured populations and helps...

  11. On full groups of non ergodic probability measure preserving equivalence relations

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    On full groups of non ergodic probability measure preserving equivalence relations Franois Le the topological rank of the full group of an aperiodic pmp equivalence relation to the cost of its ergodic property for full groups of aperiodic equivalence relations, and find a connected metric for which

  12. A new approach to criteria for health risk assessment

    SciTech Connect (OSTI)

    Spickett, Jeffery, E-mail: J.Spickett@curtin.edu.au [WHO Collaborating Centre for Environmental Health Impact Assessment (Australia); Faculty of Health Sciences, School of Public Health, Curtin University, Perth, Western Australia (Australia); Katscherian, Dianne [WHO Collaborating Centre for Environmental Health Impact Assessment (Australia); Western Australian Department of Health WA, PO Box 8172, Perth Business Centre WA 6849 (Australia); Goh, Yang Miang [WHO Collaborating Centre for Environmental Health Impact Assessment (Australia); Faculty of Health Sciences, School of Public Health, Curtin University, Perth, Western Australia (Australia)

    2012-01-15T23:59:59.000Z

    Health Impact Assessment (HIA) is a developing component of the overall impact assessment process and as such needs access to procedures that can enable more consistent approaches to the stepwise process that is now generally accepted in both EIA and HIA. The guidelines developed during this project provide a structured process, based on risk assessment procedures which use consequences and likelihood, as a way of ranking risks to adverse health outcomes from activities subjected to HIA or HIA as part of EIA. The aim is to assess the potential for both acute and chronic health outcomes. The consequences component also identifies a series of consequences for the health care system, depicted as expressions of financial expenditure and the capacity of the health system. These more specific health risk assessment characteristics should provide for a broader consideration of health consequences and a more consistent estimation of the adverse health risks of a proposed development at both the scoping and risk assessment stages of the HIA process. - Highlights: Black-Right-Pointing-Pointer A more objective approach to health risk assessment is provided. Black-Right-Pointing-Pointer An objective set of criteria for the consequences for chronic and acute impacts. Black-Right-Pointing-Pointer An objective set of criteria for the consequences on the health care system. Black-Right-Pointing-Pointer An objective set of criteria for event frequency that could impact on health. Black-Right-Pointing-Pointer The approach presented is currently being trialled in Australia.

  13. OXIDATION OF MERCURY ACROSS SCR CATALYSTS IN COAL-FIRED POWER PLANTS BURNING LOW RANK FUELS

    SciTech Connect (OSTI)

    Constance Senior

    2004-12-31T23:59:59.000Z

    The objectives of this program were to measure the oxidation of mercury in flue gas across SCR catalyst in a coal-fired power plant burning low rank fuels using a slipstream reactor containing multiple commercial catalysts in parallel and to develop a greater understanding of mercury oxidation across SCR catalysts in the form of a simple model. The Electric Power Research Institute (EPRI) and Argillon GmbH provided co-funding for this program. REI used a multicatalyst slipstream reactor to determine oxidation of mercury across five commercial SCR catalysts at a power plant that burned a blend of 87% subbituminous coal and 13% bituminous coal. The chlorine content of the blend was 100 to 240 {micro}g/g on a dry basis. Mercury measurements were carried out when the catalysts were relatively new, corresponding to about 300 hours of operation and again after 2,200 hours of operation. NO{sub x}, O{sub 2} and gaseous mercury speciation at the inlet and at the outlet of each catalyst chamber were measured. In general, the catalysts all appeared capable of achieving about 90% NO{sub x} reduction at a space velocity of 3,000 hr{sup -1} when new, which is typical of full-scale installations; after 2,200 hours exposure to flue gas, some of the catalysts appeared to lose NO{sub x} activity. For the fresh commercial catalysts, oxidation of mercury was in the range of 25% to 65% at typical full-scale space velocities. A blank monolith showed no oxidation of mercury under any conditions. All catalysts showed higher mercury oxidation without ammonia, consistent with full-scale measurements. After exposure to flue gas for 2,200 hours, some of the catalysts showed reduced levels of mercury oxidation relative to the initial levels of oxidation. A model of Hg oxidation across SCRs was formulated based on full-scale data. The model took into account the effects of temperature, space velocity, catalyst type and HCl concentration in the flue gas.

  14. On rank 2 vector bundles on Fano manifolds Roberto Mu~noz, Gianluca Occhetta, and Luis E. Sola Conde

    E-Print Network [OSTI]

    Occhetta, Gianluca

    On rank 2 vector bundles on Fano manifolds Roberto Mu~noz, Gianluca Occhetta, and Luis E. Sol´a~NOZ, GIANLUCA OCCHETTA, AND LUIS E. SOL´A CONDE setting of rank two vector bundles on Fano manifolds of Picard

  15. LOW-COMPLEXITY MULTIUSER DETECTION AND REDUCED-RANK WIENER FILTERS FOR ULTRA-WIDEBAND MULTIPLE ACCESS

    E-Print Network [OSTI]

    Tian, Zhi "Gerry"

    LOW-COMPLEXITY MULTIUSER DETECTION AND REDUCED-RANK WIENER FILTERS FOR ULTRA-WIDEBAND MULTIPLE the large user capacity planned for ultra- wideband (UWB) systems motivates multiuser detection (MUD of chip-rate samples. This model enables low-complexity MUD, of which we ex- amine a reduced-rank Wiener

  16. Building Fuzzy Thematic Clusters and Mapping Them to Higher Ranks in a Taxonomy

    E-Print Network [OSTI]

    Mirkin, Boris

    , Moscow, RF 3 Computer Science Department and Centre for Artificial Intelligence (CENTRIA), Faculdade de as a query set. To lift a query set to higher ranks of the taxonomy, we develop an original recursive a framework for representation of the activities of an organization or any other system under consideration

  17. LOW RANK SOLUTION OF LYAPUNOV EQUATIONS JING-REBECCA LI AND JACOB WHITE

    E-Print Network [OSTI]

    Li, Jing-Rebecca

    @cims.nyu.edu). The research of this author was supported by the National Science Foundation and the Semiconductor Research of Technology, Room 36-817, Cam- bridge, MA 02139-4307 (white@mit.edu). 260 #12;LOW RANK SOLUTION OF LYAPUNOV

  18. Fast Kalman filtering and forward-backward smoothing via a low-rank perturbative

    E-Print Network [OSTI]

    Columbia University

    Fast Kalman filtering and forward-backward smoothing via a low-rank perturbative approach Eftychios A. Pnevmatikakis Kamiar Rahnama Rad Jonathan Huggins Liam Paninski October 15, 2012 Abstract Kalman implementations of the Kalman filter-smoother require O(d3) time and O(d2) space per timestep, where d

  19. Exploiting the Deep Web with DynaBot: Matching, Probing, and Ranking

    E-Print Network [OSTI]

    Caverlee, James

    Exploiting the Deep Web with DynaBot: Matching, Probing, and Ranking Daniel Rocco University, CA, USA critchlow1@llnl.gov ABSTRACT We present the design of Dynabot, a guided Deep Web discovery system. Dynabot's modular architecture sup- ports focused crawling of the Deep Web with an empha- sis

  20. inria-00269225,version1-2Apr2008 Using Data Compressors to Construct Rank

    E-Print Network [OSTI]

    Boyer, Edmond

    inria-00269225,version1-2Apr2008 Using Data Compressors to Construct Rank Tests Daniil Ryabko, J compressors. For homogeneity testing the idea is to compress the binary string obtained by ordering the two show that such a test obtained from an ideal data compressor is valid against all alterna- tives

  1. CONTENT-ADAPTIVE SPEECH ENHANCEMENT BY A SPARSELY-ACTIVATED DICTIONARY PLUS LOW RANK DECOMPOSITION

    E-Print Network [OSTI]

    Ellis, Dan

    CONTENT-ADAPTIVE SPEECH ENHANCEMENT BY A SPARSELY-ACTIVATED DICTIONARY PLUS LOW RANK DECOMPOSITION.papadopoulos[at]lss.supelec.fr dpwe[at]ee.columbia.edu ABSTRACT One powerful approach to speech enhancement employs strong models, we proposed a speech enhancement model that decomposes the spectrogram into sparse activation

  2. Speech enhancement by low-rank and convolutive dictionary spectrogram decomposition

    E-Print Network [OSTI]

    Ellis, Dan

    Speech enhancement by low-rank and convolutive dictionary spectrogram decomposition Zhuo Chen1 Computer Science Institute, Berkeley, CA, USA zc2204@columbia.edu Abstract A successful speech enhancement, performance will suffer. In previous work, we proposed a speech enhance- ment framework based on decomposing

  3. QoS-aware Optimization Strategy for Security Ranking in SSL Protocol , Zhe Tang 1

    E-Print Network [OSTI]

    Wu, Jie

    QoS-aware Optimization Strategy for Security Ranking in SSL Protocol Fang Qi 1 , Zhe Tang 1 socket layer protocol (SSL) is to provide confidentiality and data integrity between two communicating entities. Since the most computationally expensive step in the SSL handshake protocol is the server's RSA

  4. AUTHORITY RANKINGS FROM HITS, PAGERANK, AND SALSA: EXISTENCE, UNIQUENESS, AND EFFECT OF INITIALIZATION

    E-Print Network [OSTI]

    Ward, Lesley A.

    and authority weights consistent. Key words. Link analysis, web search, HITS algorithm, Kleinberg's algorithm, 15A18, 68R10. 1. Introduction. The rapid growth of the world wide web has created a need for search tools. In the past, search engines ranked pages using word frequency or similar measures. Recently, new

  5. Low-rank coal research: Volume 2, Advanced research and technology development: Final report

    SciTech Connect (OSTI)

    Mann, M.D.; Swanson, M.L.; Benson, S.A.; Radonovich, L.; Steadman, E.N.; Sweeny, P.G.; McCollor, D.P.; Kleesattel, D.; Grow, D.; Falcone, S.K.

    1987-04-01T23:59:59.000Z

    Volume II contains articles on advanced combustion phenomena, combustion inorganic transformation; coal/char reactivity; liquefaction reactivity of low-rank coals, gasification ash and slag characterization, and fine particulate emissions. These articles have been entered individually into EDB and ERA. (LTN)

  6. THE ODD MOMENTS OF RANKS AND CRANKS GEORGE E. ANDREWS, SONG HENG CHAN, AND BYUNGCHAN KIM

    E-Print Network [OSTI]

    THE ODD MOMENTS OF RANKS AND CRANKS GEORGE E. ANDREWS, SONG HENG CHAN, AND BYUNGCHAN KIM Abstract by National Security Agency, NSA grant award 101015. Song Heng Chan was partially supported by Nanyang of Education, Science and Technology (NRF2011-0009199). 1 #12;2 GEORGE E. ANDREWS, SONG HENG CHAN

  7. Canonical correlation technique for rank estimation of excitation-emission matrices

    SciTech Connect (OSTI)

    Not Available

    1989-10-01T23:59:59.000Z

    One of the major problems that has challenged analytical chemists for a long time is to determine the number of components in a multicomponent sample. Often the sample data occur in the form of a matrix whose rank, in the absence of noise, is equal to the number of components. The presence of random noise in the data, however, will generally cause the rank of the mixture matrix to exceed the number of components in the mixture. The problem then is to estimate what the rank would be if the noise were removed. An eigenanalysis in the form a singular value decomposition of the measured mixture matrix provides information that is useful for estimating rank. In this communication the authors report a new approach to this problem which incorporates eigenvector information without requiring prior expectations about the nature of the eigenvectors. It utilizes the multivariate statistical technique of canonical correlations. They present the methodology in the context of fluorescent mixtures and will also assume that the readers are familiar with the excitation-emission matrix (EEM).

  8. kenmerk 369.075 1 RULES FOR CLASSIFICATION AND RANKING OF STAFF

    E-Print Network [OSTI]

    Twente, Universiteit

    , a new job classification system (UFO) came into force. As a result of the introduction of UFO, old job jobs are ranked. At several levels the introduction of UFO has consequences for the classification for the application of UFO is the job. This is the `cluster of tasks to be performed by the employee based

  9. Low-rank coal research under the UND/DOE cooperative agreement. Quarterly technical progress report, April 1983-June 1983

    SciTech Connect (OSTI)

    Wiltsee, Jr., G. A.

    1983-01-01T23:59:59.000Z

    Progress reports are presented for the following tasks: (1) gasification wastewater treatment and reuse; (2) fine coal cleaning; (3) coal-water slurry preparation; (4) low-rank coal liquefaction; (5) combined flue gas cleanup/simultaneous SO/sub x/-NO/sub x/ control; (6) particulate control and hydrocarbons and trace element emissions from low-rank coals; (7) waste characterization; (8) combustion research and ash fowling; (9) fluidized-bed combustion of low-rank coals; (10) ash and slag characterization; (11) organic structure of coal; (12) distribution of inorganics in low-rank coals; (13) physical properties and moisture of low-rank coals; (14) supercritical solvent extraction; and (15) pyrolysis and devolatilization.

  10. Rangeland Risk Management for Texans: Types of Risk

    E-Print Network [OSTI]

    White, Larry D.; Hanselka, C. Wayne

    2000-11-01T23:59:59.000Z

    Types of risk associated with range ecosystems include climatic, biological, financial and political risks. These risks are explained so that managers can know how to handle them....

  11. Risk Dynamics?An Analysis for the Risk of Change

    E-Print Network [OSTI]

    Huang, Tailin

    2010-01-01T23:59:59.000Z

    Bookstaber, R. (1999). "Risk Management in ComplexG. E. (2004). "How Useful Is Quantitative Risk Assessment?"Risk Analysis, Aubrey, A. (2010). "Preventing Diabetes:

  12. Performance of low-rank coal in atmospheric fluidized bed combustion. Technology transfer report

    SciTech Connect (OSTI)

    Hajicek, D.R.; Zobeck, B.J.; Mann, M.D.; Miller, B.G.; Ellman, R.C.; Benson, S.A.; Goblirsch, G.M.; Cooper, J.L.; Guillory, J.L.; Eklund, A.G.

    1985-10-01T23:59:59.000Z

    This report presents test data generated at GFETC and discusses the implications of this data in regard to the technical and economic feasibility of using low-rank coals in the AFBC. Atmospheric fluidized bed combustion offers a number of potential advantages over conventional pulverized coal combustion due to the intense turbulence in the fluidized bed and long residence times of solids in the bed without a long linear flow path. Advantages of the AFBC include flexibility to handle varying fuels, sulfur capture by limestone, high combustion efficiency, compact combustor size, lower NO/sub x/ emissions, and reduced slagging and fouling problems. Low-rank coals with high alkali-to-sulfur ratios offer a significant additional advantage: the ability to absorb significant sulfur on the alkaline ash. Results verify that AFBC is particularly well suited for the direct combustion of low-rank coals. With combustion temperatures above 1450/sup 0/F at 20% excess air or higher, the combustion efficiencies while burning low-rank coal were found to be above 98%, with efficiencies above 99% for most tests. The CO emissions were very low, typically below 0.05 lb/MMBtu or 50 ppMv. Overall heat transfer coefficients to water-cooled tubes while burning low-rank coals were comparable to those obtained with other fuels in AFBC, or 20 to 60 Btu/h-ft/sup 2/-/sup 0/F. These are considerably higher than those obtained in conventional coal-fired systems which are typically 5 to 15 Btu/h-ft/sup 2/-/sup 0/F. Factors influencing heat transfer included mass velocity, bed particle size, bed temperature, and ash recycle.

  13. Finance and Risk & ENGINEERING

    E-Print Network [OSTI]

    Aronov, Boris

    Finance and Risk & ENGINEERING Charles S. Tapiero Department Head and Morton and Angela Topfer Corporate Finance and Financial Markets Computational Finance Risk Finance Technology and Algorithmic Finance A Collective Leadership Students participation #12;RESEARCH STRENGTHS Black Swans and Fragility

  14. Sandia Energy - Security Risk Assessment

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

    Security Risk Assessment Home Climate & Earth Systems WaterEnergy Nexus Water Monitoring & Treatment Technology Security Risk Assessment Security Risk Assessmentcwdd2015-05-04T21:...

  15. Subjective Risk, Confidence, and Ambiguity

    E-Print Network [OSTI]

    Traeger, Christian P.

    2011-01-01T23:59:59.000Z

    Paper 1103) Subjective Risk, Confidence, and Ambiguityby author(s). Subjective Risk, Con?dence, and Ambiguity ?567. Ellsberg, D. (1961), Risk, ambiguity and the savage

  16. Essays in time and risk

    E-Print Network [OSTI]

    Sprenger, Charles

    2011-01-01T23:59:59.000Z

    4.4.1 Risk Attitudes . . . . . . . . . . . . . . . . .3.3.1 Additional Risk Preference Measures . . . . . . . .An Endowment Effect for Risk: Experimental Tests of

  17. Learning and risk aversion

    E-Print Network [OSTI]

    Oyarzun, Carlos

    2009-06-02T23:59:59.000Z

    This dissertation contains three essays on learning and risk aversion. In the first essay we consider how learning may lead to risk averse behavior. A learning rule is said to be risk averse if it is expected to add more probability to an action...

  18. Livestock Risk Protection

    E-Print Network [OSTI]

    Thompson, Bill; Bennett, Blake; Jones, Diana

    2008-10-21T23:59:59.000Z

    risk insurance with an ending date of coverage that meets their risk management objectives. Feeder cattle producers may want the end date of coverage to match the William Thompson, Blake Bennett and DeDe Jones* Figure 1: Livestock Risk Protection...

  19. A preliminary evaluation of the economic risk for cleanup of nuclear material licensee contamination incidents

    SciTech Connect (OSTI)

    Ostmeyer, R.M.; Skinner, D.J.

    1987-03-01T23:59:59.000Z

    This report documents an analysis of the economic risks from nuclear material licensee contamination incidents. The results of the analyses are intended to provide a technical basis for an NRC rulemaking which would require nuclear material licensees to demonstrate adequate financial means to cover the cleanup costs for accidental or inadvertant release of radioactive materials. The important products of this effort include (1) a method for categorizing licensees according to the potential cost and frequency of contamination incidents, (2) a model for ranking the categories of licensees according to potential incident costs, and (3) estimates of contamination risk for the licensee categories.

  20. A case-control study of physical activity patterns and risk of non-fatal myocardial infarction

    E-Print Network [OSTI]

    2013-01-01T23:59:59.000Z

    activity-related energy expenditure, and risk of AMI. Therelated energy expenditure (METs/day) and risk of AMI fittedrelated energy expenditure and AMI risk but it reached a

  1. Risk perspectives for TOPAZ II flight mission

    SciTech Connect (OSTI)

    Payne, A.C. Jr. [Sandia National Labs., Albuquerque, NM (United States); Haskin, F.E. [New Mexico Univ., Albuquerque, NM (United States). Dept. of Chemical and Nuclear Engineering

    1993-11-01T23:59:59.000Z

    The purpose of this paper is to present a preliminary estimate of the nuclear-related public health risk presented by launching and operating the Russian TOPAZ II space reactor as part of the Nuclear Electric Propulsion Space Test Program (NEPSTP). This risk is then compared to the risks from the operation of commercial nuclear power reactors and previously planned and/or launched space nuclear power missions. For the current mission profile, the initial estimate of the risk posed by launching and operating TOPAZ II is significantly less (at least two orders of magnitude) than that estimated for prior space nuclear missions. Even allowing for the large uncertainties in this estimate, it does not appear that the NEPSTP mission will present a significant health risk to the public.

  2. Russian risk assessment methods and approaches

    SciTech Connect (OSTI)

    Dvorack, M.A.; Carlson, D.D.; Smith, R.E.

    1996-07-01T23:59:59.000Z

    One of the benefits resulting from the collapse of the Soviet Union is the increased dialogue currently taking place between American and Russian nuclear weapons scientists in various technical arenas. One of these arenas currently being investigated involves collaborative studies which illustrate how risk assessment is perceived and utilized in the Former Soviet Union (FSU). The collaborative studies indicate that, while similarities exist with respect to some methodologies, the assumptions and approaches in performing risk assessments were, and still are, somewhat different in the FSU as opposed to that in the US. The purpose of this paper is to highlight the present knowledge of risk assessment methodologies and philosophies within the two largest nuclear weapons laboratories of the Former Soviet Union, Arzamas-16 and Chelyabinsk-70. Furthermore, This paper will address the relative progress of new risk assessment methodologies, such as Fuzzy Logic, within the framework of current risk assessment methods at these two institutes.

  3. Risk & QualityRisk & Quality ManagementManagement

    E-Print Network [OSTI]

    liability."" [Balsaono RR, Brown[Balsaono RR, Brown MK, Risk ManagementMK, Risk Management inin Legal

  4. Next Generation Nuclear Plant Phenomena Identification and Ranking Tables (PIRTs) Volume 1: Main Report

    SciTech Connect (OSTI)

    Ball, Sydney J [ORNL

    2008-03-01T23:59:59.000Z

    A phenomena identification and ranking table (PIRT) process was conducted for the Next Generation Nuclear Plant (NGNP) design. This design (in the conceptual stage) is a modular high-temperature gas-cooled reactor (HTGR) that generates both electricity and process heat for hydrogen production. Expert panels identified safety-relevant phenomena, ranked their importance, and assessed the knowledge levels in the areas of accidents and thermal fluids, fission-product transport and dose, high-temperature materials, graphite, and process heat for hydrogen production. This main report summarizes and documents the process and scope of the reviews, noting the major activities and conclusions. The identified phenomena, analyses, rationales, and associated ratings of the phenomena, plus a summary of each panel's findings, are presented. Individual panel reports for these areas are provided as attached volumes to this main report and provide considerably more detail about each panel's deliberations as well as a more complete listing of the phenomena that were evaluated.

  5. Risk Policy and Risk Management Procedures The University's Risk Policy sets out The University's approach to risk and its

    E-Print Network [OSTI]

    Aickelin, Uwe

    Risk Policy and Risk Management Procedures Preface The University's Risk Policy sets out The University's approach to risk and its management together with the means for identifying, analysing and managing risk in order to minimise its frequency and impact. The risks considered significant

  6. Professional Certificate in Risk Management

    E-Print Network [OSTI]

    Carleton University

    Professional Certificate in Risk Management 2010 Program 3 Part-time Courses CRM01: Essentials of Risk Management Next Session Fall 2010 CRM02: Risk Control Jan. 12 - April 26, 2010 CRM03: Risk to apply for the Canadian Risk Management (CRM) designation. #12;Professional Certificate in Risk

  7. Process for clean-burning fuel from low-rank coal

    DOE Patents [OSTI]

    Merriam, Norman W. (Laramie, WY); Sethi, Vijay (Laramie, WY); Brecher, Lee E. (Laramie, WY)

    1994-01-01T23:59:59.000Z

    A process for upgrading and stabilizing low-rank coal involving the sequential processing of the coal through three fluidized beds; first a dryer, then a pyrolyzer, and finally a cooler. The fluidizing gas for the cooler is the exit gas from the pyrolyzer with the addition of water for cooling. Overhead gas from pyrolyzing is likely burned to furnish the energy for the process. The product coal exits with a tar-like pitch sealant to enhance its safety during storage.

  8. Impact of cost constraints on aesthetic ranking following Target Value Design exercises

    E-Print Network [OSTI]

    Rybkowski, Zofia K.; Munankami, Manish; Gottipati, Udaya; Lavy, Sarel; Fernndez-Solis, Jose

    2011-07-13T23:59:59.000Z

    IMPACT OF COST CONSTRAINTS ON AESTHETIC RANKING FOLLOWING TARGET VALUE DESIGN EXERCISES Zofia K. Rybkowski1, Manish Munankami2, Udaya Gottipati3, Jose Fernndez-Sols 4, and Sarel Lavy5 PURPOSE: Target Value Design (TVD) is a project... delivery subset that shares methodologies with Target Costing and Value Engineering, but is performed within the context of lean construction. TVD has been shown to generate first cost savings of approximately 20% on case study projects. A concern voiced...

  9. Private quantum codes: introduction and connection with higher rank numerical ranges

    E-Print Network [OSTI]

    D. W. Kribs; S. Plosker

    2014-07-05T23:59:59.000Z

    We give a brief introduction to private quantum codes, a basic notion in quantum cryptography and key distribution. Private code states are characterized by indistinguishability of their output states under the action of a quantum channel, and we show that higher rank numerical ranges can be used to describe them. We also show how this description arises naturally via conjugate channels and the bridge between quantum error correction and cryptography.

  10. Effects of age, genotype and social rank on mating proficiency of beef bulls

    E-Print Network [OSTI]

    Smith, Ronald Gregg

    1994-01-01T23:59:59.000Z

    EFFECTS OF AGE, GENOTYPE AND SOCIAL RANK ON MATING PROFICIENCY OF BEEF BULLS A Thesis by RONALD GREGG SMITH Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE May 1994 Major Subject: Animal Science EFFECTS OF AGE, GENOTYPE AND SOCIAL ~ ON MATING PROFICIENCY OF BEEF BULLS A Thesis by RONALD GREGG SMITH Submitted to Texas A&M University in partial fulfillment of the requirements...

  11. Fuzzy Approach to Critical Bus Ranking under Normal and Line Outage Contingencies

    E-Print Network [OSTI]

    Shankar, Shobha

    2011-01-01T23:59:59.000Z

    Identification of critical or weak buses for a given operating condition is an important task in the load dispatch centre. It has become more vital in view of the threat of voltage instability leading to voltage collapse. This paper presents a fuzzy approach for ranking critical buses in a power system under normal and network contingencies based on Line Flow index and voltage profiles at load buses. The Line Flow index determines the maximum load that is possible to be connected to a bus in order to maintain stability before the system reaches its bifurcation point. Line Flow index (LF index) along with voltage profiles at the load buses are represented in Fuzzy Set notation. Further they are evaluated using fuzzy rules to compute Criticality Index. Based on this index, critical buses are ranked. The bus with highest rank is the weakest bus as it can withstand a small amount of load before causing voltage collapse. The proposed method is tested on Five Bus Test System.

  12. Rutgers MQF program ranked a "Top 10 Quant School" by Wall Street executives based on recruitability

    E-Print Network [OSTI]

    Lin, Xiaodong

    quantitative analysts, senior consultants, risk managers, or market risk analysts. The analytic work can industry to supply chain pricing, product cycle analysis and risk management in the manufacturing sector of Quantitative Finance (MFQ) program today is attracting attention because of its unique focus on a specific

  13. Finding the largest low-rank clusters with Ky Fan 2-k-norm and l1-norm

    E-Print Network [OSTI]

    Xuan Vinh Doan

    2014-03-24T23:59:59.000Z

    Mar 24, 2014 ... Abstract: We propose a convex optimization formulation with the Ky Fan 2-k-norm and l1-norm to fi nd k largest approximately rank-one...

  14. Evaluation and Ranking of Geothermal Resources for Electrical Generation or Electrical Offset in Idaho, Montana, Oregon and Washington. Volume I.

    SciTech Connect (OSTI)

    Bloomquist, R. Gordon

    1985-06-01T23:59:59.000Z

    The objective was to consolidate and evaluate all geologic, environmental, and legal and institutional information in existing records and files, and to apply a uniform methodology to the evaluation and ranking of sites to allow the making of creditable forecasts of the supply of geothermal energy which could be available in the region over a 20 year planning horizon. A total of 1265 potential geothermal resource sites were identified from existing literature. Site selection was based upon the presence of thermal and mineral springs or wells and/or areas of recent volcanic activity and high heat flow. 250 sites were selected for detailed analysis. A methodology to rank the sites by energy potential, degree of developability, and cost of energy was developed. Resource developability was ranked by a method based on a weighted variable evaluation of resource favorability. Sites were ranked using an integration of values determined through the cost and developability analysis. 75 figs., 63 tabs.

  15. Variation of Neron-Severi ranks of reductions of K3 surfaces Edgar Costa and Yuri Tschinkel

    E-Print Network [OSTI]

    Tschinkel, Yuri

    Variation of N´eron-Severi ranks of reductions of K3 surfaces Edgar Costa and Yuri Tschinkel EDGAR COSTA AND YURI TSCHINKEL In these extreme cases, the primes in jump(X) can be understood

  16. ON THE COMPRESSION OF LOW RANK MATRICES H. CHENG, Z. GIMBUTAS, P. G. MARTINSSON, AND V. ROKHLIN

    E-Print Network [OSTI]

    O'Brien, James F.

    ON THE COMPRESSION OF LOW RANK MATRICES H. CHENG, Z. GIMBUTAS, P. G. MARTINSSON, AND V. ROKHLIN (martins@cs.yale.edu, rokhlin@cs.yale.edu). 1389 #12;1390 CHENG, GIMBUTAS, MARTINSSON, ROKHLIN matrices (of

  17. Development and Application of a Habitat Suitability Ranking Model for the New Mexico Meadow Jumping Mouse (Zapus hudsonius luteus)

    SciTech Connect (OSTI)

    James Biggs; Mary Mullen; Kathryn Bennett

    1999-11-01T23:59:59.000Z

    The New Mexico meadow jumping mouse (Zapus hudsonius luteus) is currently listed as a state threatened species in New Mexico and has been identified as potentially occurring within the Los Alamos National Laboratory (LANL) boundary. We describe the development of a model to identify and rank habitat at LANL that may be suitable for occupation by this species. The model calculates a habitat suitability ranking (HSR) based on total plant cover, plant species composition, total number of plant species, and plant height. Input data for the model is based on the measurement of these variables at known locations where this species has been found within the Jemez Mountains. Model development included the selection of habitat variables, developing a probability distribution for each variable, and applying weights to each variable based on their overall importance in defining the suitability of the habitat. The habitat variables (HV) include plant cover (HV1), grass/forb cover (HV2), plant height (HV3), number of forbs (HV4), number of grasses (HV5), and sedge/rush cover (HV6). Once the HVs were selected, probability values were calculated for each. Each variable was then assigned a ''weighting factor'' to reflect the variables' importance relative to one another with respect to contribution to quality of habitat. The least important variable, sedge/rush cover, was assigned a weight factor of ''1'' with increasing values assigned to each remaining variable as follows: number of forbs = 3, number of grasses = 3, plant height = 5, grass/forb cover = 6, and total plant cover = 7. Based on the probability values and weighting factors, a HSR is calculated as follows: HSR = (P{sub HV1}(7) + P{sub HV2}(6) + P{sub HV3}(5) + P{sub HV4}(3) + P{sub HV5}(3) + P{sub HV6}(1)). Once calculated, the HSR values are placed into one of four habitat categorical groupings by which management strategies are applied.

  18. Conditional Risk Mappings

    E-Print Network [OSTI]

    Megiddo

    2006-09-30T23:59:59.000Z

    Key words: Risk; Conjugate Duality; Stochastic Optimization; Dynamic ... MSC2000 Subject Classification: Primary: 90C15,90C48; Secondary: 91B30,

  19. Asbestos exposure--quantitative assessment of risk

    SciTech Connect (OSTI)

    Hughes, J.M.; Weill, H.

    1986-01-01T23:59:59.000Z

    Methods for deriving quantitative estimates of asbestos-associated health risks are reviewed and their numerous assumptions and uncertainties described. These methods involve extrapolation of risks observed at past relatively high asbestos concentration levels down to usually much lower concentration levels of interest today--in some cases, orders of magnitude lower. These models are used to calculate estimates of the potential risk to workers manufacturing asbestos products and to students enrolled in schools containing asbestos products. The potential risk to workers exposed for 40 yr to 0.5 fibers per milliliter (f/ml) of mixed asbestos fiber type (a permissible workplace exposure limit under consideration by the Occupational Safety and Health Administration (OSHA) ) are estimated as 82 lifetime excess cancers per 10,000 exposed. The risk to students exposed to an average asbestos concentration of 0.001 f/ml of mixed asbestos fiber types for an average enrollment period of 6 school years is estimated as 5 lifetime excess cancers per one million exposed. If the school exposure is to chrysotile asbestos only, then the estimated risk is 1.5 lifetime excess cancers per million. Risks from other causes are presented for comparison; e.g., annual rates (per million) of 10 deaths from high school football, 14 from bicycling (10-14 yr of age), 5 to 20 for whooping cough vaccination. Decisions concerning asbestos products require participation of all parties involved and should only be made after a scientifically defensible estimate of the associated risk has been obtained. In many cases to date, such decisions have been made without adequate consideration of the level of risk or the cost-effectiveness of attempts to lower the potential risk. 73 references.

  20. Rank Petroleum

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for On-Highway4,1,50022,3,,,,6,1,9,1,50022,3,,,,6,1,Decade Energy I I' a evie _ =_ In7, 20116,650.0 Weekly7a.7. Petroleum and

  1. Risk assessment for physical and cyber attacks on critical infrastructures.

    SciTech Connect (OSTI)

    Smith, Bryan J.; Sholander, Peter E.; Phelan, James M.; Wyss, Gregory Dane; Varnado, G. Bruce; Depoy, Jennifer Mae

    2005-08-01T23:59:59.000Z

    Assessing the risk of malevolent attacks against large-scale critical infrastructures requires modifications to existing methodologies. Existing risk assessment methodologies consider physical security and cyber security separately. As such, they do not accurately model attacks that involve defeating both physical protection and cyber protection elements (e.g., hackers turning off alarm systems prior to forced entry). This paper presents a risk assessment methodology that accounts for both physical and cyber security. It also preserves the traditional security paradigm of detect, delay and respond, while accounting for the possibility that a facility may be able to recover from or mitigate the results of a successful attack before serious consequences occur. The methodology provides a means for ranking those assets most at risk from malevolent attacks. Because the methodology is automated the analyst can also play 'what if with mitigation measures to gain a better understanding of how to best expend resources towards securing the facilities. It is simple enough to be applied to large infrastructure facilities without developing highly complicated models. Finally, it is applicable to facilities with extensive security as well as those that are less well-protected.

  2. RISK REDUCTION WITH A FUZZY EXPERT EXPLORATION TOOL

    SciTech Connect (OSTI)

    William W. Weiss

    2001-05-17T23:59:59.000Z

    Incomplete or sparse information on types of data such as geologic or formation characteristics introduces a high level of risk for oil exploration and development projects. ''Expert'' systems developed and used in several disciplines and industries have demonstrated beneficial results. A state-of-the-art exploration ''expert'' tool, relying on a computerized database and computer maps generated by neural networks, is being developed through the use of ''fuzzy'' logic, a relatively new mathematical treatment of imprecise or non-explicit parameters and values. Oil prospecting risk can be reduced with the use of a properly developed and validated ''Fuzzy Expert Exploration (FEE) Tool.'' This FEE Tool can be beneficial in many regions of the U.S. by enabling risk reduction in oil and gas prospecting as well as decreased prospecting and development costs. In the 1998-1999 oil industry environment, many smaller exploration companies lacked the resources of a pool of expert exploration personnel. Downsizing, low oil prices, and scarcity of exploration funds have also affected larger companies, and will, with time, affect the end users of oil industry products in the U.S. as reserves are depleted. The FEE Tool will benefit a diverse group in the U.S., leading to a more efficient use of scarce funds and lower product prices for consumers. This second annual report contains a summary of progress to date, problems encountered, plans for the next quarter, and an assessment of the prospects for future progress. During the second year of the project, data acquisition of the Brushy Canyon Formation was completed with the compiling and analyzing of well logs, geophysical data, and production information needed to characterize production potential in the Delaware Basin. A majority of this data now resides in several online databases on our servers and is in proper form to be accessed by external programs such as Web applications. A new concept was developed and tested in well log analysis using neural networks. Bulk volume oil (BVO) was successfully predicted using wireline logs as inputs. This concept provides a new tool for estimating the potential success of a well and determining the productive interval to be perforated. Regional attributes have been gridded to a 40-ac bin (gridblock) size, and our fuzzy ranking procedures were applied to determine which attributes are best able to predict production trends in the Delaware Basin. The production indicator was the average of the first 12 full producing months of oil production as the value to be predicted. A study to determine the ability of an artificial intelligence system to predict depth using seismic attributes in a Delaware field was completed and the results were published. Significant improvements over standard techniques were found, particularly when test wells were on the dataset boundary where extrapolation is required. Programming the expert system was undertaken, and a decision tree program was coded in Java Expert System Shell (JESS) that allows development and tabulation of rules and relationships between rules that can be used by our expert system. This important program allows lists of rules to be entered and easily tested and verified. The design of the expert system itself was clarified and an expanded system was created where several distinct factors such as geologic/geophysical data, trap assessment, and formation assessment can be operated on in parallel to increase efficiency of the overall system. Coding of the Java interface, which users can use to access data in the online databases and run the expert system, was completed. Development of the interface ties together the data and the expert system programs coded in JESS while allowing user customization and informative reports of results to be retrieved. Technology transfer continued to be an important aspect of this project. Research and progress to date was presented to a group of industry and academic professionals at the second annual consortium meeting held November 2, 2000 in Hobbs, NM. Key technical res

  3. Essays on risk aversion

    E-Print Network [OSTI]

    Jindapon, Paan

    2006-10-30T23:59:59.000Z

    the preferred distribution by a simple mean-preserving spread and the cost is a utility cost. Higher-order increases in risk lead to higher-order generalizations, and the com- parative statics method yields a unified approach to the problem of comparative risk...

  4. Risk assessment as a framework for decisions.

    SciTech Connect (OSTI)

    Rechard, Robert Paul; McKenna, Sean Andrew; Borns, David James

    2010-12-01T23:59:59.000Z

    The risk assessment approach has been applied to support numerous radioactive waste management activities over the last 30 years. A risk assessment methodology provides a solid and readily adaptable framework for evaluating the risks of CO2 sequestration in geologic formations to prioritize research, data collection, and monitoring schemes. This paper reviews the tasks of a risk assessment, and provides a few examples related to each task. This paper then describes an application of sensitivity analysis to identify important parameters to reduce the uncertainty in the performance of a geologic repository for radioactive waste repository, which because of importance of the geologic barrier, is similar to CO2 sequestration. The paper ends with a simple stochastic analysis of idealized CO2 sequestration site with a leaking abandoned well and a set of monitoring wells in an aquifer above the CO2 sequestration unit in order to evaluate the efficacy of monitoring wells to detect adverse leakage.

  5. ASSOCIATIONS BETWEEN POLYMORPHISMS AND ABNORMAL RPFNA CYTOMORPHOLOGY IN HIGH-RISK POSTMENOPAUSAL WOMEN TAKING HRT

    E-Print Network [OSTI]

    Michaels, Whitney Lee

    2014-08-31T23:59:59.000Z

    Introduction: Hormone replacement therapy (HRT) is an effective treatment option for women experiencing symptoms of menopause but long-term use is associated with an increased risk of breast cancer. HRT-related breast cancer risk is dependent...

  6. Alternatives for reducing the environmental risks associated with natural disasters and their effects on pipelines

    E-Print Network [OSTI]

    Wellborn, Michael Wayne

    1996-01-01T23:59:59.000Z

    Past pipeline failure reports have typically focused on corrosion and third party related events. However, natural disasters pose a substantial risk to pipeline integrity as well. Therefore, it was the objective of this thesis to analyze the risks...

  7. Co-pyrolysis of low rank coals and biomass: Product distributions

    SciTech Connect (OSTI)

    Soncini, Ryan M.; Means, Nicholas C.; Weiland, Nathan T.

    2013-10-01T23:59:59.000Z

    Pyrolysis and gasification of combined low rank coal and biomass feeds are the subject of much study in an effort to mitigate the production of green house gases from integrated gasification combined cycle (IGCC) systems. While co-feeding has the potential to reduce the net carbon footprint of commercial gasification operations, the effects of co-feeding on kinetics and product distributions requires study to ensure the success of this strategy. Southern yellow pine was pyrolyzed in a semi-batch type drop tube reactor with either Powder River Basin sub-bituminous coal or Mississippi lignite at several temperatures and feed ratios. Product gas composition of expected primary constituents (CO, CO{sub 2}, CH{sub 4}, H{sub 2}, H{sub 2}O, and C{sub 2}H{sub 4}) was determined by in-situ mass spectrometry while minor gaseous constituents were determined using a GC-MS. Product distributions are fit to linear functions of temperature, and quadratic functions of biomass fraction, for use in computational co-pyrolysis simulations. The results are shown to yield significant nonlinearities, particularly at higher temperatures and for lower ranked coals. The co-pyrolysis product distributions evolve more tar, and less char, CH{sub 4}, and C{sub 2}H{sub 4}, than an additive pyrolysis process would suggest. For lignite co-pyrolysis, CO and H{sub 2} production are also reduced. The data suggests that evolution of hydrogen from rapid pyrolysis of biomass prevents the crosslinking of fragmented aromatic structures during coal pyrolysis to produce tar, rather than secondary char and light gases. Finally, it is shown that, for the two coal types tested, co-pyrolysis synergies are more significant as coal rank decreases, likely because the initial structure in these coals contains larger pores and smaller clusters of aromatic structures which are more readily retained as tar in rapid co-pyrolysis.

  8. Process for clean-burning fuel from low-rank coal

    DOE Patents [OSTI]

    Merriam, N.W.; Sethi, V.; Brecher, L.E.

    1994-06-21T23:59:59.000Z

    A process is described for upgrading and stabilizing low-rank coal involving the sequential processing of the coal through three fluidized beds; first a dryer, then a pyrolyzer, and finally a cooler. The fluidizing gas for the cooler is the exit gas from the pyrolyzer with the addition of water for cooling. Overhead gas from pyrolyzing is likely burned to furnish the energy for the process. The product coal exits with a tar-like pitch sealant to enhance its safety during storage. 1 fig.

  9. HPGMG 1.0: A Benchmark for Ranking High Performance Computing Systems

    SciTech Connect (OSTI)

    Adams, Mark; Brown, Jed; Shalf, John; Straalen, Brian Van; Strohmaier, Erich; Williams, Sam

    2014-05-05T23:59:59.000Z

    This document provides an overview of the benchmark ? HPGMG ? for ranking large scale general purpose computers for use on the Top500 list [8]. We provide a rationale for the need for a replacement for the current metric HPL, some background of the Top500 list and the challenges of developing such a metric; we discuss our design philosophy and methodology, and an overview of the specification of the benchmark. The primary documentation with maintained details on the specification can be found at hpgmg.org and the Wiki and benchmark code itself can be found in the repository https://bitbucket.org/hpgmg/hpgmg.

  10. Risk Management in Biopharmaceutical Supply Chains

    E-Print Network [OSTI]

    Ma, Yao

    2011-01-01T23:59:59.000Z

    Supply Chain Risk Managementof Recent Work on Supply Chain Risk Management . . . . .M. , Supply chain risk management: Outlining an agenda for

  11. Systemic risk in consumer finance

    E-Print Network [OSTI]

    Poon, Martha

    2011-01-01T23:59:59.000Z

    Systemic risk in consumer finance Uncertain about risk HowComplexity, Ecology, Finance The Pre-History of ResilienceSystemic risk in consumer finance Martha Poon, NYU At the

  12. (Energy Risk Professional, ERP), (GARP),

    E-Print Network [OSTI]

    Kaplan, Alexander

    Dragana Pilipovic. Energy Risk: Valuing and Managing Energy Derivatives,2nd Edition (New York: Mc). 9: Risk Management of Energy Derivatives Alexander Triantis. Handbook of Modern Finance (New 1 ( ) : . (Energy Risk Professional, ERP

  13. Risk in the Weapons Stockpile

    SciTech Connect (OSTI)

    Noone, Bailey C [Los Alamos National Laboratory

    2012-08-14T23:59:59.000Z

    When it comes to the nuclear weapons stockpile, risk must be as low as possible. Design and care to keep the stockpile healthy involves all aspects of risk management. Design diversity is a method that helps to mitigate risk.

  14. Development of Improved Caprock Integrity and Risk Assessment Techniques

    SciTech Connect (OSTI)

    Bruno, Michael

    2014-09-30T23:59:59.000Z

    GeoMechanics Technologies has completed a geomechanical caprock integrity analysis and risk assessment study funded through the US Department of Energy. The project included: a detailed review of historical caprock integrity problems experienced in the natural gas storage industry; a theoretical description and documentation of caprock integrity issues; advanced coupled transport flow modelling and geomechanical simulation of three large-scale potential geologic sequestration sites to estimate geomechanical effects from CO2 injection; development of a quantitative risk and decision analysis tool to assess caprock integrity risks; and, ultimately the development of recommendations and guidelines for caprock characterization and CO2 injection operating practices. Historical data from gas storage operations and CO2 sequestration projects suggest that leakage and containment incident risks are on the order of 10-1 to 10-2, which is higher risk than some previous studies have suggested for CO2. Geomechanical analysis, as described herein, can be applied to quantify risks and to provide operating guidelines to reduce risks. The risk assessment tool developed for this project has been applied to five areas: The Wilmington Graben offshore Southern California, Kevin Dome in Montana, the Louden Field in Illinois, the Sleipner CO2 sequestration operation in the North Sea, and the In Salah CO2 sequestration operation in North Africa. Of these five, the Wilmington Graben area represents the highest relative risk while the Kevin Dome area represents the lowest relative risk.

  15. Risks of Untrustworthiness Peter G. Neumann

    E-Print Network [OSTI]

    Neumann, Peter G.

    - erties such as security, reliability, human safety, and sur- vivability in the presence of a wide range to what had been ex- pected of them. The risks relate to security, reliability, survivability, human safety, and other attributes, and span a variety of applications and critical infrastructures

  16. Risk Management 1851 N. Research Drive

    E-Print Network [OSTI]

    Moore, Paul A.

    -372-3135 Bowling Green State University Motor Vehicle Record Statement University policy requires that all driversRisk Management 1851 N. Research Drive Bowling Green, OH 43403 419-372-2127 Fax 419 acknowledge that the university endorses all applicable state motor vehicle regulations relating to driver

  17. ORISE: Crisis and Risk Communication

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

    Crisis and Risk Communication Crisis and Risk Communication Because a natural disaster, act of terrorism or other public emergency can happen without notice, having a planned,...

  18. Risk Management Guide

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

    2011-01-18T23:59:59.000Z

    This Guide provides non-mandatory risk management approaches for implementing the requirements of DOE O 413.3B, Program and Project Management for the Acquisition of Capital Assets. Cancels DOE G 413.3-7.

  19. RISK ASSESSMENT CLOUD COMPUTING

    E-Print Network [OSTI]

    Columbia University

    SECURITY RESEARCH PRIVACY RISK ASSESSMENT AMC DATA FISMA CLOUD COMPUTING MOBILE DEVICES OPERATIONS application hosted in the cloud Alaska DHHS fined $1.7M Portable device stolen from vehicle Mass Eye

  20. Low-rank coal research. Final technical report, April 1, 1988--June 30, 1989, including quarterly report, April--June 1989

    SciTech Connect (OSTI)

    Not Available

    1989-12-31T23:59:59.000Z

    This work is a compilation of reports on ongoing research at the University of North Dakota. Topics include: Control Technology and Coal Preparation Research (SO{sub x}/NO{sub x} control, waste management), Advanced Research and Technology Development (turbine combustion phenomena, combustion inorganic transformation, coal/char reactivity, liquefaction reactivity of low-rank coals, gasification ash and slag characterization, fine particulate emissions), Combustion Research (fluidized bed combustion, beneficiation of low-rank coals, combustion characterization of low-rank coal fuels, diesel utilization of low-rank coals), Liquefaction Research (low-rank coal direct liquefaction), and Gasification Research (hydrogen production from low-rank coals, advanced wastewater treatment, mild gasification, color and residual COD removal from Synfuel wastewaters, Great Plains Gasification Plant, gasifier optimization).

  1. Advanced Acid Gas Separation Technology for the Utilization of Low Rank Coals

    SciTech Connect (OSTI)

    Kloosterman, Jeff

    2012-12-31T23:59:59.000Z

    Air Products has developed a potentially ground-breaking technology Sour Pressure Swing Adsorption (PSA) to replace the solvent-based acid gas removal (AGR) systems currently employed to separate sulfur containing species, along with CO{sub 2} and other impurities, from gasifier syngas streams. The Sour PSA technology is based on adsorption processes that utilize pressure swing or temperature swing regeneration methods. Sour PSA technology has already been shown with higher rank coals to provide a significant reduction in the cost of CO{sub 2} capture for power generation, which should translate to a reduction in cost of electricity (COE), compared to baseline CO{sub 2} capture plant design. The objective of this project is to test the performance and capability of the adsorbents in handling tar and other impurities using a gaseous mixture generated from the gasification of lower rank, lignite coal. The results of this testing are used to generate a high-level pilot process design, and to prepare a techno-economic assessment evaluating the applicability of the technology to plants utilizing these coals.

  2. Risk Perceptions and Risk Management Strategies in French

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    EA 4272 Risk Perceptions and Risk Management Strategies in French Oyster Farming Vronique le Bihan Perceptions and Risk Management Strategies in French Oyster Farming Vronique Le Bihan, Sophie Pardo, Patrice and their businesses contribute to defining their degree of risk perception and reliance on management tools. Beyond

  3. THE FUNDAMENTAL RISK QUADRANGLE IN RISK MANAGEMENT, OPTIMIZATION

    E-Print Network [OSTI]

    Uryasev, Stanislav

    THE FUNDAMENTAL RISK QUADRANGLE IN RISK MANAGEMENT, OPTIMIZATION AND STATISTICAL ESTIMATION1 R be confronted in numerous situations. Dealing with them systematically for purposes in risk management Statistical estimation is inevitably a partner with risk management in handling hazards, which may be known

  4. Milestone Reached: New Process Reduces Cost and Risk of Biofuel...

    Energy Savers [EERE]

    Addthis Related Articles Milestone Reached: New Process Reduces Cost and Risk of Biofuel Production from Bio-Oil Upgrading Refining Bio-Oil alongside Petroleum Why Bio-Oil Turns...

  5. Managing the Risks of Climate Change and Terrorism

    SciTech Connect (OSTI)

    Rosa, Eugene; Dietz, Tom; Moss, Richard H.; Atran, Scott; Moser, Susanne

    2012-04-07T23:59:59.000Z

    The article describes challenges to comparative risk assessment, a key approach for managing uncertainty in decision making, across diverse threats such as terrorism and climate change and argues new approaches will be particularly important in addressing decisions related to sustainability.

  6. Rethinking Risk: Aspiration as Pure Risk

    E-Print Network [OSTI]

    Davies, Greg B

    2006-03-14T23:59:59.000Z

    of an environmental decision problem where dierent investment packages (acts) lead to dierent possible levels of global wealth and overall levels of global warming. Avoiding the all too easy economic assumption that the global wealth levels can simply be adjusted... by some amount to reect the eect of the global temperature levels, we are now left with two numerical components in this problem. There are thus separate measures of risk aversion that deal with wealth and temperature, and therefore two dierent concepts...

  7. CALIFORNIA STATE UNIVERSITY, RISK MANAGEMENT

    E-Print Network [OSTI]

    de Lijser, Peter

    CALIFORNIA STATE UNIVERSITY, FULLERTON RISK MANAGEMENT ANNUAL REPORT January 2008 OFFICE OF UNIVERSITY RISK MANAGEMENT CP-320 714-278-7346 #12;2006 2007 Risk Management Annual Report Page 2 I. Executive Summary A. Program Cost One method to assess the effectiveness of the University's risk management

  8. Eighth Annual Risk Management Conference

    E-Print Network [OSTI]

    Chaudhuri, Sanjay

    Eighth Annual Risk Management Conference Risk Management Amidst Global Rebalancing 10 ­ 11 July 2014, Singapore The Risk Management Institute (RMI) at the National University of Singapore invites submissions for its 8th annual conference on risk management in Singapore on 10 and 11 July 2014. We

  9. CALIFORNIA STATE UNIVERSITY, RISK MANAGEMENT

    E-Print Network [OSTI]

    de Lijser, Peter

    CALIFORNIA STATE UNIVERSITY, FULLERTON RISK MANAGEMENT ANNUAL REPORT November 2006 OFFICE OF UNIVERSITY RISK MANAGEMENT LH-806C 714-278-7346 #12;2005 2006 Risk Management Annual Report Page 2 I. Executive Summary A. Program Cost One method to assess the effectiveness of the University's risk management

  10. CALIFORNIA STATE UNIVERSITY, RISK MANAGEMENT

    E-Print Network [OSTI]

    de Lijser, Peter

    CALIFORNIA STATE UNIVERSITY, FULLERTON RISK MANAGEMENT ANNUAL REPORT November 2005 OFFICE OF UNIVERSITY RISK MANAGEMENT LH-806C 714-278-7346 #12;2004 2005 Risk Management Annual Report Page 2 I. Introduction The Office of University Risk Management provides resources, advice and training that allow

  11. Pest Risk Analysis for Hymenoscyphus

    E-Print Network [OSTI]

    Pest Risk Analysis for Hymenoscyphus pseudoalbidus for the UK and the Republic of Ireland #12;2 PRA for Hymenoscyphus pseudoalbidus C.E. Sansford 23rd May 2013 Pest Risk Analysis Pest Risk Analysis for Hymenoscyphus (Kowalski and Holdenrieder, 2009). 1 Please cite this document as: Sansford, CE (2013). Pest Risk Analysis

  12. Preliminary Results from a State-of-the-Practice Survey on Risk Management in Off-The-Shelf

    E-Print Network [OSTI]

    Preliminary Results from a State-of-the-Practice Survey on Risk Management in Off in software development. Previous studies have identified typical risks and related risk management strategies-proven guidelines to help project managers to identify and manage these risks. We are performing an international

  13. DOE SBIR Phase II Final Report: Distributed Relevance Ranking in Heterogeneous Document Collections

    SciTech Connect (OSTI)

    Abe Lederman

    2007-01-08T23:59:59.000Z

    This report contains the comprehensive summary of the work performed on the SBIR Phase II project (Distributed Relevance Ranking in Heterogeneous Document Collections) at Deep Web Technologies (http://www.deepwebtech.com). We have successfully completed all of the tasks defined in our SBIR Proposal work plan (See Table 1 - Phase II Tasks Status). The project was completed on schedule and we have successfully deployed an initial production release of the software architecture at DOE-OSTI for the Science.gov Alliance's search portal (http://www.science.gov). We have implemented a set of grid services that supports the extraction, filtering, aggregation, and presentation of search results from numerous heterogeneous document collections. Illustration 3 depicts the services required to perform QuickRank filtering of content as defined in our architecture documentation. Functionality that has been implemented is indicated by the services highlighted in green. We have successfully tested our implementation in a multi-node grid deployment both within the Deep Web Technologies offices, and in a heterogeneous geographically distributed grid environment. We have performed a series of load tests in which we successfully simulated 100 concurrent users submitting search requests to the system. This testing was performed on deployments of one, two, and three node grids with services distributed in a number of different configurations. The preliminary results from these tests indicate that our architecture will scale well across multi-node grid deployments, but more work will be needed, beyond the scope of this project, to perform testing and experimentation to determine scalability and resiliency requirements. We are pleased to report that a production quality version (1.4) of the science.gov Alliance's search portal based on our grid architecture was released in June of 2006. This demonstration portal is currently available at http://science.gov/search30 . The portal allows the user to select from a number of collections grouped by category and enter a query expression (See Illustration 1 - Science.gov 3.0 Search Page). After the user clicks search a results page is displayed that provides a list of results from the selected collections ordered by relevance based on the query expression the user provided. Our grid based solution to deep web search and document ranking has already gained attention within DOE, other Government Agencies and a fortune 50 company. We are committed to the continued development of grid based solutions to large scale data access, filtering, and presentation problems within the domain of Information Retrieval and the more general categories of content management, data mining and data analysis.

  14. ITER risk workshop facilitator guide

    SciTech Connect (OSTI)

    Medina, Patricia [Los Alamos National Laboratory

    2009-01-01T23:59:59.000Z

    The goal of planning risk management is to make everyone involved in a program aware that risk should be a consideration in the design, development, and fielding of a system. Risk planning is a tool to assess and mitigate events that might adversely impact the program. Therefore, risk management increases the probability/likelihood of program success and can help to avoid program crisis management and improve problem solving by managing risk early in the acquisition cycle.

  15. ITER risk workshop participant guide

    SciTech Connect (OSTI)

    Medina, Patricia [Los Alamos National Laboratory

    2009-01-01T23:59:59.000Z

    The goal of planning risk management is to make everyone involved in a program aware that risk should be a consideration in the design, development, and fielding of a system. Risk planning is a tool to assess and mitigate events that might adversely impact the program. Therefore, risk management increases the probability/likelihood of program success and can help to avoid program crisis management and improve problem solving by managing risk early in the acquisition cycle.

  16. Ranking the importance of nuclear reactions for activation and transmutation events

    E-Print Network [OSTI]

    Arter, Wayne; Relton, Samuel D; Higham, Nicholas J

    2015-01-01T23:59:59.000Z

    Pathways-reduced analysis is one of the techniques used by the Fispact-II nuclear activation and transmutation software to study the sensitivity of the computed inventories to uncertainties in reaction cross-sections. Although deciding which pathways are most important is very helpful in for example determining which nuclear data would benefit from further refinement, pathways-reduced analysis need not necessarily define the most critical reaction, since one reaction may contribute to several different pathways. This work examines three different techniques for ranking reactions in their order of importance in determining the final inventory, viz. a pathways based metric (PBM), the direct method and one based on the Pearson correlation coefficient. Reasons why the PBM is to be preferred are presented.

  17. Non-intrusive Low-Rank Separated Approximation of High-Dimensional Stochastic Models

    E-Print Network [OSTI]

    Alireza Doostan; AbdoulAhad Validi; Gianluca Iaccarino

    2012-10-04T23:59:59.000Z

    This work proposes a sampling-based (non-intrusive) approach within the context of low-rank separated representations to tackle the issue of curse-of-dimensionality associated with the solution of models, e.g., PDEs/ODEs, with high-dimensional random inputs. Under some conditions discussed in details, the number of random realizations of the solution, required for a successful approximation, grows linearly with respect to the number of random inputs. The construction of the separated representation is achieved via a regularized alternating least-squares regression, together with an error indicator to estimate model parameters. The computational complexity of such a construction is quadratic in the number of random inputs. The performance of the method is investigated through its application to three numerical examples including two ODE problems with high-dimensional random inputs.

  18. Risk-based approach for controlling beryllium exposure in a manufacturing environment

    SciTech Connect (OSTI)

    Gilmore, W. E. (Walter E.); Clawson, C. D. (Chris D.); Ellis, K. K. (Kimberly K.)

    2003-01-01T23:59:59.000Z

    There are many diverse uses for beryllium in both military and industrial applications. Unfortunately, there are certain worker health risks associated with the manufacture and production of beryllium products. Respiratory illnesses due to prolonged contact with beryllium particulate are of paramount concern. However, these health risks can be controlled provided that the appropriate protective measures to prevent worker exposure from beryllium are in place. But it is no1 always a straightforward process to identify exactly what the beryllium protective measures should be in order to realize a true risk savings. Without prudent attention to a systematic inquiry and suitable evaluative criteria, a program for controlling beryllium health risks can be lacking in completeness and overall effectiveness. One approach that took into account the necessary ingredients for risk-based determination of beryllium protective measures was developed for a beryllium operation at a Department of Energy (DOE) facility. The methodological framework that was applied at this facility, as well as a discussion of the final beryllium protective measures that were determined by this approach will be presented. Regulatory aspects for working with beryllium, as well as a risk-assessment strategy for ranking beryllium-handling activities with respect to exposure potential will also be discussed. The presentation will conclude with a synopsis of lessons-learned as gleaned from this case study, as well as providing the participants with a constructive blueprint that can be adapted to other processes involving beryllium.

  19. AN INTEGRATED VISION TO ASSIST THE EVOLUTION IN INDUSTRIAL RISK MANAGEMENT PROCESS IN FRANCE

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    AN INTEGRATED VISION TO ASSIST THE EVOLUTION IN INDUSTRIAL RISK MANAGEMENT PROCESS IN FRANCE Management in the field of environmental protection and risk prevention has evolved to the increasing with the complexity of risk management issues, in particular for those related to land-use planning. As technical

  20. An Overview of Value at Risk Darrell Duffie and Jun Pan

    E-Print Network [OSTI]

    Gabrieli, John

    . The measurement and management of counterparty default risk involves a range of different modeling issues evidence. 1 Background In managing market risk, there are related objectives: 1. Measure the extent's financial integrity and riskmanagement tech nology to contractual counterparties, regulators, auditors

  1. Systemic trade-risk of critical resources

    E-Print Network [OSTI]

    Klimek, Peter; Thurner, Stefan

    2015-01-01T23:59:59.000Z

    In the wake of the 2008 financial crisis the role of strongly interconnected markets in fostering systemic instability has been increasingly acknowledged. Trade networks of commodities are susceptible to deleterious cascades of supply shocks that increase systemic trade-risks and pose a threat to geopolitical stability. On a global and a regional level we show that supply risk, scarcity, and price volatility of non-fuel mineral resources are intricately connected with the structure of the world-trade network of or spanned by these resources. On the global level we demonstrate that the scarcity of a resource, as measured by its trade volume compared to extractable reserves, is closely related to the susceptibility of the trade network with respect to cascading shocks. On the regional level we find that to some extent the region-specific price volatility and supply risk can be understood by centrality measures that capture systemic trade-risk. The resources associated with the highest systemic trade-risk indica...

  2. Risk-limiting Audits for Nonplurality Elections Anand D. Sarwate

    E-Print Network [OSTI]

    Zhou, Yuanyuan

    ," are well-documented (Black, 1958, Poundstone, 2008, Saari, 2001, Szpiro, 2010), and recently, several; these include positional systems (Saari, 1995). In ranked systems, voters rank some or all of the candidates

  3. Simulation assessment of CO2 sequestration potential and enhanced methane recovery in low-rank coalbeds of the Wilcox Group, east-central Texas

    E-Print Network [OSTI]

    Hernandez Arciniegas, Gonzalo

    2006-10-30T23:59:59.000Z

    of enhancing methane recovery from coal. Most previous studies have evaluated the merits of CO2 disposal in high-rank coals. Low-rank coals in the Gulf Coastal plain, specifically in Texas, are possible targets for CO2 sequestration and enhanced methane...

  4. Risk Management Guide

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

    2008-09-16T23:59:59.000Z

    This Guide provides a framework for identifying and managing key technical, schedule, and cost risks through applying the requirements of DOE O 413.3A, Program and Project Management for the Acquisition of Capital Assets, dated 7-28-06. Canceled by DOE G 413.3-7A, dated 1-12-11. Does not cancel other directives.

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

    E-Print Network [OSTI]

    Kambhampati, Subbarao

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

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

    E-Print Network [OSTI]

    Kambhampati, Subbarao

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

  7. Scoping Studies to Evaluate the Benefits of an Advanced Dry Feed System on the Use of Low-Rank Coal

    SciTech Connect (OSTI)

    Rader, Jeff; Aguilar, Kelly; Aldred, Derek; Chadwick, Ronald; Conchieri, John; Dara, Satyadileep; Henson, Victor; Leininger, Tom; Liber, Pawel; Liber, Pawel; Lopez-Nakazono, Benito; Pan, Edward; Ramirez, Jennifer; Stevenson, John; Venkatraman, Vignesh

    2012-03-30T23:59:59.000Z

    The purpose of this project was to evaluate the ability of advanced low rank coal gasification technology to cause a significant reduction in the COE for IGCC power plants with 90% carbon capture and sequestration compared with the COE for similarly configured IGCC plants using conventional low rank coal gasification technology. GEs advanced low rank coal gasification technology uses the Posimetric Feed System, a new dry coal feed system based on GEs proprietary Posimetric Feeder. In order to demonstrate the performance and economic benefits of the Posimetric Feeder in lowering the cost of low rank coal-fired IGCC power with carbon capture, two case studies were completed. In the Base Case, the gasifier was fed a dilute slurry of Montana Rosebud PRB coal using GEs conventional slurry feed system. In the Advanced Technology Case, the slurry feed system was replaced with the Posimetric Feed system. The process configurations of both cases were kept the same, to the extent possible, in order to highlight the benefit of substituting the Posimetric Feed System for the slurry feed system.

  8. An Empirical Test of the Relationship between Sustainability and Urban Form Based on Indicator Comparisons using Sustainlane Sustainable City Rankings

    E-Print Network [OSTI]

    Kim, Bo Ah

    2011-02-22T23:59:59.000Z

    Street Network ......................................................................................... 9? Figure 5 Portland, OR City Chart ..................................................................................... 15? Figure 6 Mesa, AZ City... been not only highly simplistic characterizations of urban sprawl, but also wildly different estimates of which regions have the worst sprawl. As a result of 12 this research, Portland, Oregon, is ranked as the most compact region while Los Angeles...

  9. NYU's Chinese ACE 2005 EDR System Description Can Global Re-Ranking and Semantic Role Labeling help Chinese EDR?

    E-Print Network [OSTI]

    NYU's Chinese ACE 2005 EDR System Description Can Global Re-Ranking and Semantic Role Labeling help Chinese EDR? Heng Ji Adam Meyers Ralph Grishman Proteus Project Department of Computer Science New York the overall architecture of the NYU Chinese ACE 2005 EDR (Entity Detection and Recognition) system, focussing

  10. Complementary Relativity

    E-Print Network [OSTI]

    P. F. Gonzalez-Diaz

    1994-04-07T23:59:59.000Z

    Special theory of relativity has been formulated in a vacuum momentum-energy representation which is equivalent to Einstein special relativity and predicts just the same results as it. Although in this sense such a formulation would be at least classically useless, its consistent extension to noninertial frames produces a momentum-energy metric which behaves as a new dynamical quantity that is here interpreted in terms of a cosmological field. This new field would be complementary to gravity in that its strength varies inversely to as that of gravity does. Using a strong-field approximation, we suggest that the existence of this cosmological field would induce a shift of luminous energy which could justify the existence of all the assumed invisible matter in the universe, so as the high luminousities found in active galactic nuclei and quasars.

  11. Risks and Risk Governance in Unconventional Shale Gas Development

    E-Print Network [OSTI]

    Jackson, Robert B.

    Risks and Risk Governance in Unconventional Shale Gas Development Mitchell J. Small,*, Paul C, Desert Research Institute, Reno, Nevada 89512, United States 1. INTRODUCTION The recent U.S. shale gas Issue: Understanding the Risks of Unconventional Shale Gas Development Published: July 1, 2014 A broad

  12. Related Links

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > TheNuclear Press Releases 2014References by Websitehome / Related Links

  13. Reference manual for toxicity and exposure assessment and risk characterization. CERCLA Baseline Risk Assessment

    SciTech Connect (OSTI)

    NONE

    1995-03-01T23:59:59.000Z

    The Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA, 1980) (CERCLA or Superfund) was enacted to provide a program for identifying and responding to releases of hazardous substances into the environment. The Superfund Amendments and Reauthorization Act (SARA, 1986) was enacted to strengthen CERCLA by requiring that site clean-ups be permanent, and that they use treatments that significantly reduce the volume, toxicity, or mobility of hazardous pollutants. The National Oil and Hazardous Substances Pollution Contingency Plan (NCP) (USEPA, 1985; USEPA, 1990) implements the CERCLA statute, presenting a process for (1) identifying and prioritizing sites requiring remediation and (2) assessing the extent of remedial action required at each site. The process includes performing two studies: a Remedial Investigation (RI) to evaluate the nature, extent, and expected consequences of site contamination, and a Feasibility Study (FS) to select an appropriate remedial alternative adequate to reduce such risks to acceptable levels. An integral part of the RI is the evaluation of human health risks posed by hazardous substance releases. This risk evaluation serves a number of purposes within the overall context of the RI/FS process, the most essential of which is to provide an understanding of ``baseline`` risks posed by a given site. Baseline risks are those risks that would exist if no remediation or institutional controls are applied at a site. This document was written to (1) guide risk assessors through the process of interpreting EPA BRA policy and (2) help risk assessors to discuss EPA policy with regulators, decision makers, and stakeholders as it relates to conditions at a particular DOE site.

  14. Increasing your U.S. News and World Report graduate school rankings: a census of public affairs schools and their strategic communications efforts to create a tradition of distinction

    E-Print Network [OSTI]

    Hoefelmeyer, Karla Sue

    2005-08-29T23:59:59.000Z

    , and resourced properly, can increase each of these areas. Specifically, this research examined the top 50 ranked schools in public affairs to determine the relationship between top ranked schools and their communications departments and each of their uses...

  15. Information Security Office Risk Management

    E-Print Network [OSTI]

    Alpay, S. Pamir

    or Approved) 6/01/2013 CISO Jason Pufahl, CISO Approved 6/01/2013 RMAC Risk Management Advisory Council

  16. An epidermal equivalent assay for identification and ranking potency of contact sensitizers

    SciTech Connect (OSTI)

    Gibbs, Susan, E-mail: S.Gibbs@VUMC.nl [Department of Dermatology, VU University Medical Centre, Dept of Oral Cell Biology, ACTA, Amsterdam (Netherlands); Corsini, Emanuela [Laboratory of Toxicology, DiSFeB, Universit degli Studi di Milano (Italy); Spiekstra, Sander W. [Department of Dermatology, VU University Medical Centre, Dept of Oral Cell Biology, ACTA, Amsterdam (Netherlands); Galbiati, Valentina [Laboratory of Toxicology, DiSFeB, Universit degli Studi di Milano (Italy); Fuchs, Horst W. [CellSystems GmbH, Troisdorf (Germany); DeGeorge, George; Troese, Matthew [MB Research Labs, Spinnerstown, PA (United States); Hayden, Patrick; Deng, Wei [MatTek Corporation, Ashland, MA (United States); Roggen, Erwin [3Rs Management and Consultancy (Denmark)

    2013-10-15T23:59:59.000Z

    The purpose of this study was to explore the possibility of combining the epidermal equivalent (EE) potency assay with the assay which assesses release of interleukin-18 (IL-18) to provide a single test for identification and classification of skin sensitizing chemicals, including chemicals of low water solubility or stability. A protocol was developed using different 3D-epidermal models including in house VUMC model, epiCS (previously EST1000), MatTek EpiDerm and SkinEthic RHE and also the impact of different vehicles (acetone:olive oil 4:1, 1% DMSO, ethanol, water) was investigated. Following topical exposure for 24 h to 17 contact allergens and 13 non-sensitizers a robust increase in IL-18 release was observed only after exposure to contact allergens. A putative prediction model is proposed from data obtained from two laboratories yielding 95% accuracy. Correlating the in vitro EE sensitizer potency data, which assesses the chemical concentration which results in 50% cytotoxicity (EE-EC{sub 50}) with human and animal data showed a superior correlation with human DSA{sub 05} (?g/cm{sup 2}) data (Spearman r = 0.8500; P value (two-tailed) = 0.0061) compared to LLNA data (Spearman r = 0.5968; P value (two-tailed) = 0.0542). DSA{sub 05} = induction dose per skin area that produces a positive response in 5% of the tested population Also a good correlation was observed for release of IL-18 (SI-2) into culture supernatants with human DSA{sub 05} data (Spearman r = 0.8333; P value (two-tailed) = 0.0154). This easily transferable human in vitro assay appears to be very promising, but additional testing of a larger chemical set with the different EE models is required to fully evaluate the utility of this assay and to establish a definitive prediction model. - Highlights: A potential epidermal equivalent assay to label and classify sensitizers Il-18 release distinguishes sensitizers from non sensitizers IL-18 release can rank sensitizer potency EC50 (chemical concentration causing 50% decrease in cell viability) ranks potency In vitro: human DSA{sub 05} correlation is better than in vitro: LLNA correlation.

  17. Environmental epidemiology: risk assessment

    SciTech Connect (OSTI)

    Prentice, R.L.; Whittemore, A.S. (eds.)

    1982-01-01T23:59:59.000Z

    Papers presented at the symposium are in the disciplines of biometry, environmental medicine, epidemiology, mathematics, and statistics. Attention is given to assessing risk due to environmental agents, particularly those known to be carcinogenic; both the complex medical issues involved and the mathematical and statistical methodologies used in analysis are presented. Separate abstracts have been prepared for 15 papers for inclusion in the Energy Data Base. (RJC)

  18. DRAFT NISTIR 8023 Risk Management for

    E-Print Network [OSTI]

    with replication devices. Keywords 3D printers; 3D scanners; copiers; countermeasures; exploits; mitigation; multifunction devices; printers; replication devices; risk; risk assessment; risk management; scanners; security

  19. Sandia Energy - Risk and Safety Assessment

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

    Risk and Safety Assessment Home Stationary Power Nuclear Fuel Cycle Nuclear Energy Safety Technologies Risk and Safety Assessment Risk and Safety AssessmentTara...

  20. Risk Management Process Overview | Department of Energy

    Office of Environmental Management (EM)

    risk management process The cybersecurity risk management process explained in the Electricity Sector Cybersecurity Risk Management Process (RMP) Guideline has two primary...

  1. Risk transfer via energy savings insurance

    E-Print Network [OSTI]

    Mills, Evan

    2001-01-01T23:59:59.000Z

    The fields of energy management and risk management are thusand Renewable Energy Options For Risk Management andbarriers to energy efficiency projects: risk of under-

  2. Equity Risk Premium and Insecure Property Rights

    E-Print Network [OSTI]

    Magin, Konstantin

    2009-01-01T23:59:59.000Z

    Paper # 2009 -01 Equity Risk and Insecure Property Rightsof California Berkeley Equity Risk Premium and InsecureHow much of the equity risk premium puzzle can be attributed

  3. Risk-Averse Stochastic Dual Dynamic Programming

    E-Print Network [OSTI]

    Vclav Kozmk

    2013-02-26T23:59:59.000Z

    Feb 26, 2013 ... Abstract: We formulate a risk-averse multi-stage stochastic program using conditional value at risk as the risk measure. The underlying random...

  4. Vulnerability, Risk Management, and Agricultural Development

    E-Print Network [OSTI]

    Fafchamps, Marcel

    2009-01-01T23:59:59.000Z

    P. (1980). Attitudes Towards Risk: Experimental MeasurementIncentive Flexibility, and Risk. Americal Journal ofCaria, A. S. (2009), Risk Attitudes and The Formation of

  5. Risk Taking and Gender in Hierarchies

    E-Print Network [OSTI]

    Scotchmer, Suzanne

    2006-01-01T23:59:59.000Z

    and Investors Attitudes toward Risk. forthcoming (2003)in attitudes toward ?nancial risk. Evolution and HumanGrossman. 2005a. Sex and Risk: Experimen- tal Evidence. (

  6. CALIFORNIA STATE UNIVERSITY, RISK MANAGEMENT

    E-Print Network [OSTI]

    de Lijser, Peter

    CALIFORNIA STATE UNIVERSITY, FULLERTON RISK MANAGEMENT AND ENVIRONMENTAL HEALTH & INSTRUCTIONAL SAFETY 2009 ANNUAL REPORTS #12;2009 Annual Report Page 2 RISK MANAGEMENT I. Program Cost One method to assess the effectiveness of the University's risk management program is to compare the annual cost

  7. Algorithmic Aspects of Risk Management

    E-Print Network [OSTI]

    Stehr, Mark-Oliver

    Algorithmic Aspects of Risk Management Ashish Gehani1 , Lee Zaniewski2 , and K. Subramani2 1 SRI International 2 West Virginia University Abstract. Risk analysis has been used to manage the security of sys configuration. This allows risk management to occur in real time and reduces the window of exposure to attack

  8. CALIFORNIA STATE UNIVERSITY, RISK MANAGEMENT

    E-Print Network [OSTI]

    de Lijser, Peter

    CALIFORNIA STATE UNIVERSITY, FULLERTON RISK MANAGEMENT 2003-04 ANNUAL REPORT OFFICE OF UNIVERSITY RISK MANAGEMENT #12;2 I. Introduction "Of course you have to go out on a limb sometimes, that's where the best outcome in a changing environment, is the essence of risk management.3 This Report was developed

  9. Human Resources, Safety & Risk Management

    E-Print Network [OSTI]

    1 Human Resources, Safety & Risk Management 1600 Holloway Avenue, ADM 252 San Francisco, California OF RISK AND AGREEMENT TO PAY CLAIMS Activity: San Francisco State University Campus Recreation Department participating in this Activity. I am aware of the risks associated with traveling to/from and participating

  10. Quantitative Risk Management Rudiger Frey

    E-Print Network [OSTI]

    Frey, Rüdiger

    Lecture Quantitative Risk Management R¨udiger Frey Universit¨at Leipzig Wintersemester 2010 risk management C. Introduction to Portfolio Credit Derivatives c 2010 (Frey) 1 #12;A. Introduction of counterparties. Measuring and management of credit risk is of high importance for financial institutions

  11. CALIFORNIA STATE UNIVERSITY, RISK MANAGEMENT

    E-Print Network [OSTI]

    de Lijser, Peter

    CALIFORNIA STATE UNIVERSITY, FULLERTON RISK MANAGEMENT 2010 ANNUAL REPORT #12;2010 Annual Report Page 2 I. Program Cost One method to assess the effectiveness of the University's risk management,538 $ 197,196 TOTAL Risk Management Costs $ 4,675,390 $ 4,541,975 $ 3,764,749 $ 3,703,959 $ 4

  12. "" EPAT# Risk Assessments Environmental Impact

    E-Print Network [OSTI]

    "" EPAT# Risk Assessments Appendixes Environmental Impact Statement NESHAPS for Radionuclides for Hazardous Air Pollutants Risk Assessments Environmental Impact Statement for NESHAPS Radionuclides VOLUME 2 for Hazardous Air Pollutants EPA 520.1'1.-89-006,-2 Risk Assessments Environmental Impact Statement for NESHAPS

  13. FINANCIAL RISK MANAGER (FRM ) CERTIFICATION

    E-Print Network [OSTI]

    Chaudhuri, Sanjay

    Dec 2013 (Save 30%) (Save 15%) Module 1 Foundation of Risk Management & Quantitative Analysis 1086FINANCIAL RISK MANAGER (FRM ) CERTIFICATION TRAINING PROGRAM 2014 JANUARY INTAKE 4 January to 10 1321 1552 Module 2 Financial Markets and Products & Valuation and Risk Models 1637 1985 2333 Module 3

  14. RISK AND INVESTMENT IN LIBERALIZED

    E-Print Network [OSTI]

    RISK AND INVESTMENT MANAGEMENT IN LIBERALIZED ELECTRICITY MARKETS Jacob Lemming Department during the period 2000­2003. The papers are centered around the theme Financial Risk in a Liberalized at Risk Management To be included in: Modelling Prices in Competitive Electricity Markets, edited by Derek

  15. SNL-NUMO collaborative : development of a deterministic site characterization tool using multi-model ranking and inference.

    SciTech Connect (OSTI)

    Grace, Matthew; Lowry, Thomas Stephen; Arnold, Bill Walter; James, Scott Carlton; Gray, Genetha Anne; Ahlmann, Michael

    2008-08-01T23:59:59.000Z

    Uncertainty in site characterization arises from a lack of data and knowledge about a site and includes uncertainty in the boundary conditions, uncertainty in the characteristics, location, and behavior of major features within an investigation area (e.g., major faults as barriers or conduits), uncertainty in the geologic structure, as well as differences in numerical implementation (e.g., 2-D versus 3-D, finite difference versus finite element, grid resolution, deterministic versus stochastic, etc.). Since the true condition at a site can never be known, selection of the best conceptual model is very difficult. In addition, limiting the understanding to a single conceptualization too early in the process, or before data can support that conceptualization, may lead to confidence in a characterization that is unwarranted as well as to data collection efforts and field investigations that are misdirected and/or redundant. Using a series of numerical modeling experiments, this project examined the application and use of information criteria within the site characterization process. The numerical experiments are based on models of varying complexity that were developed to represent one of two synthetically developed groundwater sites; (1) a fully hypothetical site that represented a complex, multi-layer, multi-faulted site, and (2) a site that was based on the Horonobe site in northern Japan. Each of the synthetic sites were modeled in detail to provide increasingly informative 'field' data over successive iterations to the representing numerical models. The representing numerical models were calibrated to the synthetic site data and then ranked and compared using several different information criteria approaches. Results show, that for the early phases of site characterization, low-parameterized models ranked highest while more complex models generally ranked lowest. In addition, predictive capabilities were also better with the low-parameterized models. For the latter iterations, when more data were available, the information criteria rankings tended to converge on the higher parameterized models. Analysis of the numerical experiments suggest that information criteria rankings can be extremely useful for site characterization, but only when the rankings are placed in context and when the contribution of each bias term is understood.

  16. Reservoir characterization based on tracer response and rank analysis of production and injection rates

    SciTech Connect (OSTI)

    Refunjol, B.T. [Lagoven, S.A., Pdvsa (Venezuela); Lake, L.W. [Univ. of Texas, Austin, TX (United States)

    1997-08-01T23:59:59.000Z

    Quantification of the spatial distribution of properties is important for many reservoir-engineering applications. But, before applying any reservoir-characterization technique, the type of problem to be tackled and the information available should be analyzed. This is important because difficulties arise in reservoirs where production records are the only information for analysis. This paper presents the results of a practical technique to determine preferential flow trends in a reservoir. The technique is a combination of reservoir geology, tracer data, and Spearman rank correlation coefficient analysis. The Spearman analysis, in particular, will prove to be important because it appears to be insightful and uses injection/production data that are prevalent in circumstances where other data are nonexistent. The technique is applied to the North Buck Draw field, Campbell County, Wyoming. This work provides guidelines to assess information about reservoir continuity in interwell regions from widely available measurements of production and injection rates at existing wells. The information gained from the application of this technique can contribute to both the daily reservoir management and the future design, control, and interpretation of subsequent projects in the reservoir, without the need for additional data.

  17. Study of the combustion of low rank coal in a fluidized bed

    SciTech Connect (OSTI)

    Glaser, R.; Grimes, R.W.

    1991-09-01T23:59:59.000Z

    This report describes the results of preliminary combustion tests performed with Eagle Butte Coal in a bubbling, fluidized-bed combustion system. The system was designed for the combustion of low-rank coals and industrial wastes. The work, as proposed, was aimed at not only the evaluation of co-firing of waste material with coal, but also at developing modifications to first generation bubbling bed designs to improve the combustion performance during co-firing. However, the funding for the work was redirected and the combustion tests were suspended soon after the shakedown testing was completed. Consequently, this report describes the results of the tests completed prior to the redirection of the effort and funding. A total of 33 combustion tests were performed in a 6-inch diameter fluidized-bed combustor. Oxygen concentrations were measured at two points in the system; the vent line and at the interface between the fluid bed and the freeboard. These measurements provided a measure of the amount of conversion of coal within the fluidized bed compared to the conversion in the freeboard region. Typically, 75 to 80% of the conversion occurred within the bed. Several experiments were performed in which special bed internals were placed in the bed. The internals were designed to reduce bubble size in the bed thus increasing the surface area of the bubbles and hence promoting oxygen diffusion into the emulsion phase.

  18. Low-rank separated representation surrogates of high-dimensional stochastic functions: Application in Bayesian inference

    SciTech Connect (OSTI)

    Validi, AbdoulAhad, E-mail: validiab@msu.edu

    2014-03-01T23:59:59.000Z

    This study introduces a non-intrusive approach in the context of low-rank separated representation to construct a surrogate of high-dimensional stochastic functions, e.g., PDEs/ODEs, in order to decrease the computational cost of Markov Chain Monte Carlo simulations in Bayesian inference. The surrogate model is constructed via a regularized alternative least-square regression with Tikhonov regularization using a roughening matrix computing the gradient of the solution, in conjunction with a perturbation-based error indicator to detect optimal model complexities. The model approximates a vector of a continuous solution at discrete values of a physical variable. The required number of random realizations to achieve a successful approximation linearly depends on the function dimensionality. The computational cost of the model construction is quadratic in the number of random inputs, which potentially tackles the curse of dimensionality in high-dimensional stochastic functions. Furthermore, this vector-valued separated representation-based model, in comparison to the available scalar-valued case, leads to a significant reduction in the cost of approximation by an order of magnitude equal to the vector size. The performance of the method is studied through its application to three numerical examples including a 41-dimensional elliptic PDE and a 21-dimensional cavity flow.

  19. Liquefaction of calcium-containing subbituminous coals and coals of lower rank

    DOE Patents [OSTI]

    Gorbaty, Martin L. (Sanwood, NJ); Taunton, John W. (Seabrook, TX)

    1980-01-01T23:59:59.000Z

    A process for the treatment of a calcium-containing subbituminous coal and coals of lower rank to form insoluble, thermally stable calcium salts which remain within the solids portions of the residue on liquefaction of the coal, thereby suppressing the formation scale, made up largely of calcium carbonate deposits, e.g., vaterite, which normally forms within the coal liquefaction reactor (i.e., coal liquefaction zone), e.g., on reactor surfaces, lines, auxiliary equipment and the like. A solution of a compound or salt characterized by the formula MX, where M is a Group IA metal of the Periodic Table of the Elements, and X is an anion which is capable of forming water-insoluble, thermally stable calcium compounds, is maintained in contact with a particulate coal feed sufficient to impregnate said salt or compound into the pores of the coal. On separation of the impregnated particulate coal from the solution, the coal can be liquefied in a coal liquefaction reactor (reaction zone) at coal liquefaction conditions without significant formation of vaterite or other forms of calcium carbonate on reactor surfaces, auxiliary equipment and the like; and the Group IA metal which remains within the liquefaction bottoms catalyzes the reaction when the liquefaction bottoms are subjected to a gasification reaction.

  20. Ranking of four potential nuclear power plant sites in Iraq according to the collective dose criterion

    SciTech Connect (OSTI)

    Marouf, B.A.; Al-Kateeb, G.H.; Al-Ani, D.S. [and others

    1991-07-01T23:59:59.000Z

    The collective dose criterion was used to rank four potential nuclear power-plant sites. Baiji, Al-Mahzam, Al-Abbasia, and Abu-Dalaf. Atmospheric as well as aquatic releases of radionuclides into the environment from the VVER 440 nuclear power plant during normal operation were used to estimate the collective dose equivalents. The results indicated that the collective doses at Baiji, Al-Mahzam, Al-Abbasia, and Abu-Dalaf were 3.6 x 10{sup -2}, 4.7 x 10{sup -2}, 1.1 x 10{sup -1}, and 1.2 x 10{sup -1} man-Sv, respectively. Thus the order of preference is Baiji, Al-Mahzam, Al-Abbasia, and Abu-Dalaf. The effective dose equivalents to the highest exposed individual resulting from atmospheric as well as aquatic releases of radionuclides from the reactor at any one of the four potential nuclear power-plant sites would not exceed 2 x 10{sup -5} Sv/yr. Thus any one of the four sites is suitable for the operation of the 440 nuclear power plants. 27 refs., 1 tab.

  1. University of Washington ENTERPRISE RISK MANAGEMENT

    E-Print Network [OSTI]

    Kaminsky, Werner

    University of Washington ENTERPRISE RISK MANAGEMENT 2010 Annual Report #12;ERM 2010 Annual Report 2 December 2010 "Enterprise Risk Management" (ERM) - a process - to integrate risk into strategic UW Enterprise Risk Management Framework . . . . . . . . . 6 Illustration of ERM Components

  2. Optimal risk sharing under distorted probabilities

    E-Print Network [OSTI]

    Ludkovski, Michael; Young, Virginia R.

    2009-01-01T23:59:59.000Z

    theory of risk. Geneva Pap. Risk Insurance Theory 25, 141A. : Two-persons ef?cient risk-sharing and equilibria for36(2), 189223 (2008) Optimal risk sharing under distorted

  3. Labor Relations

    Broader source: Energy.gov [DOE]

    Addressing Poor Performance What Happens if an Employees Performance is Below the Meets Expectations (ME) level? Any time during the appraisal period an employee demonstrates that he/she is performing below the ME level in at least one critical element, the Rating Official should contact his/her Human Resources Office for guidance and: If performance is at the Needs Improvement (NI) level; issue the employee a Performance Assistance Plan (PAP); or If performance is at the Fails to Meet Expectations (FME) level; issue the employee a Performance Improvement Plan (PIP). Department of Energy Headquarters and The National Treasury Employees Union (NTEU) Collective Bargaining Agreement The National Treasury Employees Union (NTEU) is the exclusive representative of bargaining unit employees at the Department of Energy Headquarters offices in the Washington DC metropolitan area. The terms and conditions of this agreement have been negotiated by DOE and NTEU, and prescribe their respective rights and obligations in matters related to conditions of employment. Headquarters 1187 Request For Payroll Deductions For Labor Organization Dues The Request for Payroll Deduction for Labor Organization Dues (SF-1187) permits eligible employees, who are members of the National Treasury Employees Union (NTEU), to authorize voluntary allotments from their compensation. Headquarters 1188 Cancellation Of Payroll Deductions For Labor Organization Dues The Cancellation of Payroll Deductions for Labor Organizations Dues (SF-1188) permits eligible employees, who are members of the National Treasury Employees Union (NTEU), to cancel dues allotments. The National Treasury Employees Union, Collective Bargaining Agreement, Article 9 Dues Withholding This article is for the purpose of permitting eligible employees, who are members of the National Treasury Employees Union (NTEU), to authorize voluntary allotments from their compensation.

  4. The social values at risk from sea-level rise

    SciTech Connect (OSTI)

    Graham, Sonia, E-mail: sonia.graham@unimelb.edu.au [Department of Resource Management and Geography, The University of Melbourne, 221 Bouverie St., Carlton, Victoria 3053 (Australia)] [Department of Resource Management and Geography, The University of Melbourne, 221 Bouverie St., Carlton, Victoria 3053 (Australia); Barnett, Jon, E-mail: jbarn@unimelb.edu.au [Department of Resource Management and Geography, The University of Melbourne, 221 Bouverie St., Carlton, Victoria 3053 (Australia)] [Department of Resource Management and Geography, The University of Melbourne, 221 Bouverie St., Carlton, Victoria 3053 (Australia); Fincher, Ruth, E-mail: r.fincher@unimelb.edu.au [Department of Resource Management and Geography, The University of Melbourne, 221 Bouverie St., Carlton, Victoria 3053 (Australia)] [Department of Resource Management and Geography, The University of Melbourne, 221 Bouverie St., Carlton, Victoria 3053 (Australia); Hurlimann, Anna, E-mail: anna.hurlimann@unimelb.edu.au [Faculty of Architecture, Building and Planning, The University of Melbourne, Architecture and Planning Building, Parkville, Victoria 3010 (Australia)] [Faculty of Architecture, Building and Planning, The University of Melbourne, Architecture and Planning Building, Parkville, Victoria 3010 (Australia); Mortreux, Colette, E-mail: colettem@unimelb.edu.au [Department of Resource Management and Geography, The University of Melbourne, 221 Bouverie St., Carlton, Victoria 3053 (Australia)] [Department of Resource Management and Geography, The University of Melbourne, 221 Bouverie St., Carlton, Victoria 3053 (Australia); Waters, Elissa, E-mail: elissa.waters@unimelb.edu.au [Department of Resource Management and Geography, The University of Melbourne, 221 Bouverie St., Carlton, Victoria 3053 (Australia)] [Department of Resource Management and Geography, The University of Melbourne, 221 Bouverie St., Carlton, Victoria 3053 (Australia)

    2013-07-15T23:59:59.000Z

    Analysis of the risks of sea-level rise favours conventionally measured metrics such as the area of land that may be subsumed, the numbers of properties at risk, and the capital values of assets at risk. Despite this, it is clear that there exist many less material but no less important values at risk from sea-level rise. This paper re-theorises these multifarious social values at risk from sea-level rise, by explaining their diverse nature, and grounding them in the everyday practices of people living in coastal places. It is informed by a review and analysis of research on social values from within the fields of social impact assessment, human geography, psychology, decision analysis, and climate change adaptation. From this we propose that it is the lived values of coastal places that are most at risk from sea-level rise. We then offer a framework that groups these lived values into five types: those that are physiological in nature, and those that relate to issues of security, belonging, esteem, and self-actualisation. This framework of lived values at risk from sea-level rise can guide empirical research investigating the social impacts of sea-level rise, as well as the impacts of actions to adapt to sea-level rise. It also offers a basis for identifying the distribution of related social outcomes across populations exposed to sea-level rise or sea-level rise policies.

  5. An evaluation of risk simulation models for reserve estimates

    E-Print Network [OSTI]

    Judah, Janeen Sue

    1983-01-01T23:59:59.000Z

    in estimating reserves for petroleum economic evaluations is an 1mportant everyday problem encountered by practicing petroleum engineers. This study addresses the problem of est1mating reserves for petroleum evaluations with little available data. The risk... to reserve est1mates. Latin Hypercube sampling is a relatively recent statistical development and has never before been applied to petroleum economic evaluations or petroleum risk simulators. The results show that simple random sampling is adequate...

  6. The Racial/ Ethnic Distribution of Heat RiskRelated Land Cover in Relation to Residential Segregation

    E-Print Network [OSTI]

    Jesdale, Bill; Morello-Frosch, Rachel; Cushing, Lara

    2013-01-01T23:59:59.000Z

    eight subpopulations might be assessed within each block group,eight subpopulations defined by race/ethnicity and housing tenure, at the census block group

  7. The Racial/ Ethnic Distribution of Heat RiskRelated Land Cover in Relation to Residential Segregation

    E-Print Network [OSTI]

    Jesdale, Bill; Morello-Frosch, Rachel; Cushing, Lara

    2013-01-01T23:59:59.000Z

    2010. 2010 TIGER/Line Shapefiles Technical Documentation.Line topological faces shapefiles (U.S. Census Bureau 2010),

  8. Decomposition of Risk Functionals

    E-Print Network [OSTI]

    Alois Pichler

    2014-03-29T23:59:59.000Z

    Page 1 ... relative to the new information is the main topic of this paper. Consider a random variable Y describing the financial loss associated with a certain...

  9. 8 Equivalence Relations 8.1 Relations

    E-Print Network [OSTI]

    Gera, Ralucca

    8 Equivalence Relations 8.1 Relations 1. for sets A and B we define a relation from A to B have that if (a, b) R and (b, c) R then (a, c) R 8.3 Equivalence Relations 1. a relation is an equivalence relation if it is reflexive, symmetric and transitive 2. if a relation R on a set

  10. Risk Management RM

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011 Strategic2 OPAM615_CostNSAR -DepartmentRetail DemandEnergyRisk Management Review

  11. AMERIND Risk Annual Conference and Trade Fair

    Broader source: Energy.gov [DOE]

    Hosted by the AMERIND Risk, this three-day conference includes risk management training, workers' safety, human resources, and more.

  12. A sharp upper bound for the first eigenvalue of the Laplacian of compact hypersurfaces in rank-1 symmetric spaces

    E-Print Network [OSTI]

    Santhanam, G

    2007-01-01T23:59:59.000Z

    Let $M$ be a closed hypersurface in a simply connected rank-1 symmetric space $\\olm$. In this paper, we give an upper bound for the first eigenvalue of the Laplacian of $M$ in terms of the Ricci curvature of $\\olm$ and the square of the length of the second fundamental form of the geodesic spheres with center at the center-of-mass of $M$.

  13. Finales Ranking Club Apollo 13 (2008/2009) Bei Rckfragen bitte Mail an: leydecker@unikik.uni-hannover.de

    E-Print Network [OSTI]

    Nejdl, Wolfgang

    Finales Ranking Club Apollo 13 (2008/2009) Bei Rckfragen bitte Mail an: leydecker Helmstedt 17 10 18 22 3 57 12 69 #12;Apollo-Crew 5 12, 13 Leibnizschule Hannover Kthe-Einstein-Gymnasium Hameln 18 7 17 21,5 4 56,5 9 65,5 Apollo911 3 11 Gymnasium "In Der Wste" 21 10 22 53 9 62 Die heimlichen

  14. Risk Management Policy Category: Strategic Management

    E-Print Network [OSTI]

    1 Risk Management Policy Category: Strategic Management 1. PURPOSE To support the University will be encouraged to speak openly and honestly. (iii) Managers will monitor risk and will disclose risks identified's risk appetite. 2.3. Risk management standards 2.3.1 The University's risk management framework

  15. Advanced CO{sub 2} Capture Technology for Low Rank Coal IGCC System

    SciTech Connect (OSTI)

    Alptekin, Gokhan

    2013-09-30T23:59:59.000Z

    The overall objective of the project is to demonstrate the technical and economic viability of a new Integrated Gasification Combined Cycle (IGCC) power plant designed to efficiently process low rank coals. The plant uses an integrated CO{sub 2} scrubber/Water Gas Shift (WGS) catalyst to capture over90 percent capture of the CO{sub 2} emissions, while providing a significantly lower cost of electricity (COE) than a similar plant with conventional cold gas cleanup system based on SelexolTM technology and 90 percent carbon capture. TDAs system uses a high temperature physical adsorbent capable of removing CO{sub 2} above the dew point of the synthesis gas and a commercial WGS catalyst that can effectively convert CO in The overall objective of the project is to demonstrate the technical and economic viability of a new Integrated Gasification Combined Cycle (IGCC) power plant designed to efficiently process low rank coals. The plant uses an integrated CO{sub 2} scrubber/Water Gas Shift (WGS) catalyst to capture over90 percent capture of the CO{sub 2} emissions, while providing a significantly lower cost of electricity (COE) than a similar plant with conventional cold gas cleanup system based on SelexolTM technology and 90 percent carbon capture. TDAs system uses a high temperature physical adsorbent capable of removing CO{sub 2} above the dew point of the synthesis gas and a commercial WGS catalyst that can effectively convert CO in bituminous coal the net plant efficiency is about 2.4 percentage points higher than an Integrated Gasification Combined Cycle (IGCC) plant equipped with SelexolTM to capture CO{sub 2}. We also previously completed two successful field demonstrations: one at the National Carbon Capture Center (Southern- Wilsonville, AL) in 2011, and a second demonstration in fall of 2012 at the Wabash River IGCC plant (Terra Haute, IN). In this project, we first optimized the sorbent to catalyst ratio used in the combined WGS and CO{sub 2} capture process and confirmed the technical feasibility in bench-scale experiments. In these tests, we did not observe any CO breakthrough both during adsorption and desorption steps indicating that there is complete conversion of CO to CO{sub 2} and H{sub 2}. The overall CO conversions above 90 percent were observed. The sorbent achieved a total CO{sub 2} loading of 7.82 percent wt. of which 5.68 percent is from conversion of CO into CO{sub 2}. The results of the system analysis suggest that the TDA combined shift and high temperature PSA-based Warm Gas Clean-up technology can make a substantial improvement in the IGCC plant thermal performance for a plant designed to achieve near zero emissions (including greater than 90 percent carbon capture). The capital expenses are also expected to be lower than those of Selexol. The higher net plant efficiency and lower capital and operating costs result in substantial reduction in the COE for the IGCC plant equipped with the TDA combined shift and high temperature PSA-based carbon capture system.

  16. Quantitative Phenomena Identification and Ranking Table (QPIRT) for Bayesian uncertainty quantification

    SciTech Connect (OSTI)

    Yurko, J. P.; Buongiorno, J. [MIT, 77 Massachusetts Avenue, Cambridge, MA 02139 (United States)

    2012-07-01T23:59:59.000Z

    Propagating parameter uncertainty for a nuclear reactor system code is a challenging problem due to often non-linear system response to the numerous parameters involved and lengthy computational times; issues that compound when a statistical sampling procedure is adopted, since the code must be run many times. The number of parameters sampled must therefore be limited to as few as possible that still accurately characterize the uncertainty in the system response. A Quantitative Phenomena Identification and Ranking Table (QPIRT) was developed to accomplish this goal. The QPIRT consists of two steps: a 'Top-Down' step focusing on identifying the dominant physical phenomena controlling the system response, and a 'Bottom-Up' step which focuses on determining the correlations from those key physical phenomena that significantly contribute to the response uncertainty. The Top-Down step evaluates phenomena using the governing equations of the system code at nominal parameter values, providing a 'fast' screening step. The Bottom-Up step then analyzes the correlations and models for the phenomena identified from the Top-Down step to find which parameters to sample. The QPIRT, through the Top-Down and Bottom-Up steps thus provides a systematic approach to determining the limited set of physically relevant parameters that influence the uncertainty of the system response. This strategy was demonstrated through an application to the RELAP5-based analysis of a PWR Total Loss of main Feedwater Flow (TLOFW) accident, also known as feed and bleed' scenario, . Ultimately, this work is the first component in a larger task of building a calibrated uncertainty propagation framework. The QPIRT is an essential piece because the uncertainty of those selected parameters will be calibrated to data from both Separate and Integral Effect Tests (SETs and IETs). Therefore the system response uncertainty will incorporate the knowledge gained from the database of past large IETs. (authors)

  17. Information needs for risk assessment

    SciTech Connect (OSTI)

    DeRosa, C.T.; Choudhury, H.; Schoeny, R.S.

    1990-12-31T23:59:59.000Z

    Risk assessment can be thought of as a conceptual approach to bridge the gap between the available data and the ultimate goal of characterizing the risk or hazard associated with a particular environmental problem. To lend consistency to and to promote quality in the process, the US Environmental Protection Agency (EPA) published Guidelines for Risk Assessment of Carcinogenicity, Developmental Toxicity, Germ Cell Mutagenicity and Exposure Assessment, and Risk Assessment of Chemical Mixtures. The guidelines provide a framework for organizing the information, evaluating data, and for carrying out the risk assessment in a scientifically plausible manner. In the absence of sufficient scientific information or when abundant data are available, the guidelines provide alternative methodologies that can be employed in the risk assessment. 4 refs., 3 figs., 2 tabs.

  18. Optimization of Convex Risk Functions

    E-Print Network [OSTI]

    Megiddo

    2006-09-30T23:59:59.000Z

    Key words: Convex analysis; Stochastic optimization; Risk measures; Duality. MSC2000 Subject Classification: Primary: 90C15,90C48; Secondary: 91B30,...

  19. Section 10: Risk Management Concepts

    E-Print Network [OSTI]

    2014-12-04T23:59:59.000Z

    Dec 2, 2014 ... In this lesson we will discuss some concepts from risk management and insurance. We will go over the basic definitions and discuss some...

  20. Page 1 of 2 Risk Management March 2012 Risk Management

    E-Print Network [OSTI]

    Page 1 of 2 Risk Management March 2012 Risk Management Supervisor's Vehicle Incident Report-Employee Volunteer Drivers License No. State of Issue UO Certification Date UO Driver Training Date Vehicle Information: License No. Make Model Year UO Vehicle # Motorpool Outside Rental Personal Vehicle Incident

  1. Risk and Vulnerability Assessment Using Cybernomic Computational Models: Tailored for Industrial Control Systems

    SciTech Connect (OSTI)

    Abercrombie, Robert K [ORNL; Sheldon, Federick T. [University of Memphis; Schlicher, Bob G [ORNL

    2015-01-01T23:59:59.000Z

    There are many influencing economic factors to weigh from the defender-practitioner stakeholder point-of-view that involve cost combined with development/deployment models. Some examples include the cost of countermeasures themselves, the cost of training and the cost of maintenance. Meanwhile, we must better anticipate the total cost from a compromise. The return on investment in countermeasures is essentially impact costs (i.e., the costs from violating availability, integrity and confidentiality / privacy requirements). The natural question arises about choosing the main risks that must be mitigated/controlled and monitored in deciding where to focus security investments. To answer this question, we have investigated the cost/benefits to the attacker/defender to better estimate risk exposure. In doing so, it s important to develop a sound basis for estimating the factors that derive risk exposure, such as likelihood that a threat will emerge and whether it will be thwarted. This impact assessment framework can provide key information for ranking cybersecurity threats and managing risk.

  2. SOFTWARE RELATEDSOFTWARE-RELATED MEASUREMENT:MEASUREMENT

    E-Print Network [OSTI]

    SOFTWARE RELATEDSOFTWARE-RELATED MEASUREMENT:MEASUREMENT: RISKS AND OPPORTUNITIES CEM KANER, J and lazy? Most managers who I know have tried at least oney g measurement program--and abandoned them: Measurement theory and how it applies to software development metrics (which, at their core, are typically

  3. Collective Risk Control And Group Security: The Unexpected Consequences of Differential Risk

    E-Print Network [OSTI]

    McGuire, Martin C; Ihori, Toshihiro

    2007-01-01T23:59:59.000Z

    2003) Group formation in risk-sharing arrangements, Reviewof Tokyo, Conference on risk management, August 2, 2002.2002) Collective international risk control: failure of the

  4. Development of a computer-aided fault tree synthesis methodology for quantitative risk analysis in the chemical process industry

    E-Print Network [OSTI]

    Wang, Yanjun

    2005-02-17T23:59:59.000Z

    analysis in the CPI including Safety Review, Checklist Analysis, Relative Ranking, ?What-if? Analysis, Preliminary Hazard Analysis, Hazard and Operability Study (HAZOP), Failure Modes and Effects Analysis (FMEA), Fault Tree Analysis (FTA), Event Tree.... This study is exhausted systematically by applying appropriate guidewords to each process parameter at each ?study node?. Failure Modes and Effects Analysis (FMEA) FMEA is a systematic procedure in which each equipment failure mode is examined...

  5. READ AND SIGN THE PARTIAL ASSUMPTION OF RISK ON REVERSE Risk Management 12/2012 Risk Management

    E-Print Network [OSTI]

    Oregon, University of

    READ AND SIGN THE PARTIAL ASSUMPTION OF RISK ON REVERSE Risk Management 12/2012 Risk Management Conditions of Volunteer Service Please send completed form to the Office of Risk Management: riskmanagement ___________________________________________ (name/title of department supervisor) and the Office of Risk Management, (541) 346-8316, within 24 hours

  6. About the relevance ofthe concept of risk acceptability in the risk analysis and risk management process: A decisional

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    About the relevance ofthe concept of risk acceptability in the risk analysis and risk management analysis and risk management are taken. This can be introduced by: ft) giving an image ofwhat are involved and participate to the risk management process. In France, the Toulouse disaster has revealed

  7. On the exact separation of rank inequalities for the maximum stable ...

    E-Print Network [OSTI]

    2014-08-23T23:59:59.000Z

    Aug 23, 2014 ... After providing some background material and outlining related work ...... (BMBF grant 05M13PAA, joint project 05M2013 - VINO: Virtual...

  8. Joint Seminar Risk Management Institute &

    E-Print Network [OSTI]

    Chaudhuri, Sanjay

    Joint Seminar Risk Management Institute & Department of Decision Sciences Details of Seminar Date and statistics is leading to a greatly broadened theory of regression which draws on tools of convex analysis with factor analysis in finance and economics. Risk Management Institute Joint Seminar #12;

  9. Dynamical systems probabilistic risk assessment.

    SciTech Connect (OSTI)

    Denman, Matthew R.; Ames, Arlo Leroy

    2014-03-01T23:59:59.000Z

    Probabilistic Risk Assessment (PRA) is the primary tool used to risk-inform nuclear power regulatory and licensing activities. Risk-informed regulations are intended to reduce inherent conservatism in regulatory metrics (e.g., allowable operating conditions and technical specifications) which are built into the regulatory framework by quantifying both the total risk profile as well as the change in the risk profile caused by an event or action (e.g., in-service inspection procedures or power uprates). Dynamical Systems (DS) analysis has been used to understand unintended time-dependent feedbacks in both industrial and organizational settings. In dynamical systems analysis, feedback loops can be characterized and studied as a function of time to describe the changes to the reliability of plant Structures, Systems and Components (SSCs). While DS has been used in many subject areas, some even within the PRA community, it has not been applied toward creating long-time horizon, dynamic PRAs (with time scales ranging between days and decades depending upon the analysis). Understanding slowly developing dynamic effects, such as wear-out, on SSC reliabilities may be instrumental in ensuring a safely and reliably operating nuclear fleet. Improving the estimation of a plant's continuously changing risk profile will allow for more meaningful risk insights, greater stakeholder confidence in risk insights, and increased operational flexibility.

  10. DYNAMIC RISK MANAGEMENT IN ELECTRICITY PORTFOLIO OPTIMIZATION

    E-Print Network [OSTI]

    Eichhorn, Andreas

    DYNAMIC RISK MANAGEMENT IN ELECTRICITY PORTFOLIO OPTIMIZATION VIA POLYHEDRAL RISK FUNCTIONALS the dynamic decision structure appropriately. In energy risk management, which is typically carried out ex, for integrating risk management into a stochastic optimization framework, risk has to be quantified in a definite

  11. RMI 357e spring 2013 Risk Management

    E-Print Network [OSTI]

    Ghosh, Joydeep

    RMI 357e spring 2013 1 Risk Management R M 357e Professor: Christopher McClellan Office: CBA 3 thomaspjacob@utexas.edu Syllabus spring 2013 Textbook Risk Management for Enterprises and Individuals, v.1://students.flatworldknowledge.com/course/1112649 Risk Management: 357E. Risk Management - Upper-Division Course Principles of risk management

  12. Investigation of nuclide importance to functional requirements related to transport and long-term storage of LWR spent fuel

    SciTech Connect (OSTI)

    Broadhead, B.L.; DeHart, M.D.; Ryman, J.C.; Tang, J.S.; Parks, C.V.

    1995-06-01T23:59:59.000Z

    This study investigates the relative importances of the various actinide, fission-product, and light-element isotopes associated with LWR spent fuel with respect to five analysis areas: criticality safety (absorption fractions), shielding (dose rate fractions), curies (fractional curies levels), decay heat (fraction of total watts), and radiological toxicity (fraction of potential committed effective dose equivalent). These rankings are presented for up to six different burnup/enrichment scenarios and at decay times from 2 to 100,000 years. Ranking plots for each of these analysis areas are given in an Appendix for completeness, as well as summary tables in the main body of the report. Summary rankings are presented in terms of high (greater than 10% contribution to the total), medium (between 1% and 10% contribution), and low (less than 1% contribution) for both short- and long-term cooling. When compared with the expected measurement accuracies, these rankings show that most of the important isotopes can be characterized sufficiently for the purpose of radionuclide generation/depletion code validation in each of the analysis areas. Because the main focus of this work is on the relative importances of isotopes associated with L@ spent fuel, some conclusions may not be applicable to similar areas such as high-level waste (HLW) and nonfuel-bearing components (NFBC).

  13. UNIVERSITY OF ABERDEEN RISK MANAGEMENT POLICY & PROCEDURES

    E-Print Network [OSTI]

    Levi, Ran

    UNIVERSITY OF ABERDEEN RISK MANAGEMENT POLICY & PROCEDURES 1 INTRODUCTION This document sets out the policy and procedures for risk management within the University and replaces earlier documentation. The risk management process is formally integrated with the University's strategic planning process

  14. Financial Policy Manual RISK MANAGEMENT POLICIES

    E-Print Network [OSTI]

    Plotkin, Joshua B.

    Financial Policy Manual Page 1 RISK MANAGEMENT POLICIES 2601 Departmental Scope & Responsibility;Financial Policy Manual Page 1 2601 DEPARTMENTAL SCOPE & RESPONSIBILITY Subject: Risk Management & Insurance Effective: December 1986 Revised: May 2011 Last Reviewed: March 2014 Resp. Office: Risk Management

  15. Implementing Risk-Limiting Audits in California

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    cast09.pdf. Philip B. Stark. Risk-limiting post-electionthe N.J. law the ?rst risk-based statistical audit law. Holt bill does not limit risk. The Holt bill has a clause

  16. Predicting risk for the appearance of melanoma.

    E-Print Network [OSTI]

    Meyskens, Frank L Jr; Ransohoff, David F

    2006-01-01T23:59:59.000Z

    for projecting the absolute risk of breast cancer. J NatlD, Gail MH, et al: Cancer risk prediction models: A workshopal model of breast cancer risk prediction and implications

  17. Equity Risk Premium and Insecure Property Right

    E-Print Network [OSTI]

    Magin, Konstantin

    2013-01-01T23:59:59.000Z

    Magin, K. , 2012. The Equity Risk Premium Puzzle: A Res-Edelstein, The Coleman Fung Risk Management Research CenterMagin, K. , 2009. Equity Risk Premium and Insecure Property

  18. Risk assessment methodology applied to counter IED research & development portfolio prioritization

    SciTech Connect (OSTI)

    Shevitz, Daniel W [Los Alamos National Laboratory; O' Brien, David A [Los Alamos National Laboratory; Zerkle, David K [Los Alamos National Laboratory; Key, Brian P [Los Alamos National Laboratory; Chavez, Gregory M [Los Alamos National Laboratory

    2009-01-01T23:59:59.000Z

    In an effort to protect the United States from the ever increasing threat of domestic terrorism, the Department of Homeland Security, Science and Technology Directorate (DHS S&T), has significantly increased research activities to counter the terrorist use of explosives. More over, DHS S&T has established a robust Counter-Improvised Explosive Device (C-IED) Program to Deter, Predict, Detect, Defeat, and Mitigate this imminent threat to the Homeland. The DHS S&T portfolio is complicated and changing. In order to provide the ''best answer'' for the available resources, DHS S&T would like some ''risk based'' process for making funding decisions. There is a definite need for a methodology to compare very different types of technologies on a common basis. A methodology was developed that allows users to evaluate a new ''quad chart'' and rank it, compared to all other quad charts across S&T divisions. It couples a logic model with an evidential reasoning model using an Excel spreadsheet containing weights of the subjective merits of different technologies. The methodology produces an Excel spreadsheet containing the aggregate rankings of the different technologies. It uses Extensible Logic Modeling (ELM) for logic models combined with LANL software called INFTree for evidential reasoning.

  19. DHS Office of Risk Management and Analysis | May 2011 1 Risk Management Issue Brief May 2011

    E-Print Network [OSTI]

    Schrijver, Karel

    DHS Office of Risk Management and Analysis | May 2011 1 Risk Management Issue Brief May 2011 Geomagnetic Storms: An Evaluation of Risks and Risk Assessments By the Office of Risk Management and Analysis thoughtful discussion of critical risk management subjects among homeland security enterprise partners

  20. Development of Science-Based Permitting Guidance for Geological Sequestration of CO2 in Deep Saline Aquifers Based on Modeling and Risk Assessment

    SciTech Connect (OSTI)

    Jean-Philippe Nicot; Renaud Bouroullec; Hugo Castellanos; Susan Hovorka; Srivatsan Lakshminarasimhan; Jeffrey Paine

    2006-06-30T23:59:59.000Z

    Underground carbon storage may become one of the solutions to address global warming. However, to have an impact, carbon storage must be done at a much larger scale than current CO{sub 2} injection operations for enhanced oil recovery. It must also include injection into saline aquifers. An important characteristic of CO{sub 2} is its strong buoyancy--storage must be guaranteed to be sufficiently permanent to satisfy the very reason that CO{sub 2} is injected. This long-term aspect (hundreds to thousands of years) is not currently captured in legislation, even if the U.S. has a relatively well-developed regulatory framework to handle carbon storage, especially in the operational short term. This report proposes a hierarchical approach to permitting in which the State/Federal Government is responsible for developing regional assessments, ranking potential sites (''General Permit'') and lessening the applicant's burden if the general area of the chosen site has been ranked more favorably. The general permit would involve determining in the regional sense structural (closed structures), stratigraphic (heterogeneity), and petrophysical (flow parameters such as residual saturation) controls on the long-term fate of geologically sequestered CO{sub 2}. The state-sponsored regional studies and the subsequent local study performed by the applicant will address the long-term risk of the particular site. It is felt that a performance-based approach rather than a prescriptive approach is the most appropriate framework in which to address public concerns. However, operational issues for each well (equivalent to the current underground injection control-UIC-program) could follow regulations currently in place. Area ranking will include an understanding of trapping modes. Capillary (due to residual saturation) and structural (due to local geological configuration) trappings are two of the four mechanisms (the other two are solubility and mineral trappings), which are the most relevant to the time scale of interest. The most likely pathways for leakage, if any, are wells and faults. We favor a defense-in-depth approach, in which storage permanence does not rely upon a primary seal only but assumes that any leak can be contained by geologic processes before impacting mineral resources, fresh ground water, or ground surface. We examined the Texas Gulf Coast as an example of an attractive target for carbon storage. Stacked sand-shale layers provide large potential storage volumes and defense-in-depth leakage protection. In the Texas Gulf Coast, the best way to achieve this goal is to establish the primary injection level below the total depth of most wells (>2,400 m-8,000 ft). In addition, most faults, particularly growth faults, present at the primary injection level do not reach the surface. A potential methodology, which includes an integrated approach comprising the whole chain of potential events from leakage from the primary site to atmospheric impacts, is also presented. It could be followed by the State/Federal Government, as well as by the operators.

  1. Advanced Neutron Source Reactor (ANSR) phenomena identification and ranking (PIR) for large break loss of coolant accidents (LBLOCA)

    SciTech Connect (OSTI)

    Ruggles, A.E. [Oak Ridge National Lab., TN (United States)]|[Tennessee Univ., Knoxville, TN (United States); Cheng, L.Y. [Brookhaven National Lab., Upton, NY (United States); Dimenna, R.A. [Westinghouse Savannah River Co., Aiken, SC (United States); Griffith, P. [Massachusetts Inst. of Tech., Cambridge, MA (United States); Wilson, G.E. [Idaho National Engineering Lab., Idaho Falls, ID (United States)

    1994-06-01T23:59:59.000Z

    A team of experts in reactor analysis conducted a phenomena identification and ranking (PIR) exercise for a large break loss-of-coolant accident (LBLOCA) in the Advanced Neutron source Reactor (ANSR). The LBLOCA transient is broken into two separate parts for the PIR exercise. The first part considers the initial depressurization of the system that follows the opening of the break. The second part of the transient includes long-term decay heat removal after the reactor is shut down and the system is depressurized. A PIR is developed for each part of the LBLOCA. The ranking results are reviewed to establish if models in the RELAP5-MOD3 thermalhydraulic code are adequate for use in ANSR LBLOCA simulations. Deficiencies in the RELAP5-MOD3 code are identified and existing data or models are recommended to improve the code for this application. Experiments were also suggested to establish models for situations judged to be beyond current knowledge. The applicability of the ANSR PIR results is reviewed for the entire set of transients important to the ANSR safety analysis.

  2. Petrographic characterization of Kentucky coals: relationship between sporinite spectral fluorescence and coal rank of selected western Kentucky coals. Final report, Part I. [Vitrinite

    SciTech Connect (OSTI)

    Poe, S.H.; Hower, J.C.

    1983-01-01T23:59:59.000Z

    A total of 43 coal samples were analyzed - the majority from western Kentucky, with a few from Pennsylvania for comparative purposes - using quantitative fluorescence microscopy of sporinite to determine if coal rank as determined by vitrinite maximum reflectance could be predicted by data gathered from selected fluorescence parameters. All eight parameters (wavelength of highest intensity, area under curve to the left of the peak, area in the blue wavelengths (400 to 500 nm), green (500 to 570 nm), yellow (570 to 630 nm), blue-red ratio, and red-green ratio were found to statistically predict coal rank. The general research hypothesis, which included all the variables, had a R/sup 2/ = 0.354. The results of the step-wise regression yielded red and yellow (collective R/sup 2/ = 0.341) as the best predictor variables of coal rank. The individual parameters of area of red wavelength and blue-red ratio accounted for the greatest variance in predicting coal rank, while the parameter yellow area was the least predictive of coal rank. 31 references, 7 figures, 5 tables.

  3. Catalytic steam gasification reactivity of HyperCoals produced from different rank of coals at 600-775{degree}C

    SciTech Connect (OSTI)

    Atul Sharma; Ikuo Saito; Toshimasa Takanohashi [National Institute of Advanced Industrial Science and Technology, Ibaraki (Japan). Advanced Fuel Group, Energy Technology Research Institute

    2008-11-15T23:59:59.000Z

    HyperCoal is a clean coal with ash content <0.05 wt %. HyperCoals were prepared from a brown coal, a sub-bituminous coal, and a bituminous raw coal by solvent extraction method. Catalytic steam gasification of these HyperCoals was carried out with K{sub 2}CO{sub 3} at 775, 700, 650, and 600 {degree}C, and their rates were compared. HyperCoals produced from low-rank coals were more reactive than those produced from the high-rank coals. XRD measurements were carried out to understand the difference in gasification reactivity of HyperCoals. Arrhenius plot of ln (k) vs 1/T in the temperature range 600-825{degree}C was a curve rather than a straight line. The point of change was observed at 700{degree}C for HyperCoals from low-rank coals and at 775{degree}C for HyperCoals from high-rank coals. Using HyperCoal produced from low-rank coals as feedstock, steam gasification of coal may be possible at temperatures less than 650{degree}C. 22 refs., 6 figs., 2 tabs.

  4. DOE Releases Electricity Subsector Cybersecurity Risk Management...

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

    Electricity Subsector Cybersecurity Risk Management Process (RMP) Guideline DOE Releases Electricity Subsector Cybersecurity Risk Management Process (RMP) Guideline May 23, 2012 -...

  5. Optimization Online - Multilevel Optimization Modeling for Risk ...

    E-Print Network [OSTI]

    Jonathan Eckstein

    2014-08-24T23:59:59.000Z

    Aug 24, 2014 ... Abstract: Coherent risk measures have become a popular tool for incorporating risk aversion into stochastic optimization models. For dynamic...

  6. Risk factors for equine laminitis

    E-Print Network [OSTI]

    Polzer, John Patrick

    1995-01-01T23:59:59.000Z

    logistic regression to assess age, breed, sex, and seasonality as risk factors for equine laminitis. There were 70 acute cases, 183 chronic cases, and 779 controls. No statistical association was found between age, breed, sex, or seasonality...

  7. Risk Management In Major Projects

    E-Print Network [OSTI]

    Baker, Scott William

    The integration of risk management in major projects within the construction and oil and gas industries has never been more significant especially as these projects are becoming larger and more complex. The increased ...

  8. Utility View of Risk Assessment

    E-Print Network [OSTI]

    Bickham, J.

    This paper will address a utility perspective in regard to risk assessment, reliability, and impact on the utility system. Discussions will also include the critical issues for utilities when contracting for energy and capacity from cogenerators...

  9. Health risks of energy technologies

    SciTech Connect (OSTI)

    Travis, C.C.; Etnier, E.L. (eds.)

    1983-01-01T23:59:59.000Z

    This volume examines occupational, public health, and environmental risks of the coal fuel cycle, the nuclear fuel cycle, and unconventional energy technologies. The 6 chapters explore in detail the relationship between energy economics and risk analysis, assess the problems of applying traditional cost-benefit analysis to long-term environmental problems (such as global carbon dioxide levels), and consider questions about the public's perception and acceptance of risk. Also included is an examination of the global risks associated with current and proposed levels of energy production and comsumption from all major sources. A separate abstract was prepared for each of the 6 chapters; all are included in Energy Abstracts for Policy Analysis (EAPA) and four in Energy Research Abstracts (ERA).

  10. Risk Aversion in Inventory Management

    E-Print Network [OSTI]

    Chen, Xin

    Traditional inventory models focus on risk-neutral decision makers, i.e., characterizing replenishment strategies that maximize expected total profit, or equivalently, minimize expected total cost over a planning horizon. ...

  11. Inherited risk for common disease

    E-Print Network [OSTI]

    Banava, Helen

    2007-01-01T23:59:59.000Z

    Linkage disequilibrium studies have discovered few gene-disease associations for common diseases. The explanation has been offered that complex modes of inheritance govern risk for cancers, cardiovascular and cerebrovascular ...

  12. EPA`s program for risk assessment guidelines: Cancer classification issues

    SciTech Connect (OSTI)

    Wiltse, J. [Environmental Protection Agency, Washington, DC (United States)

    1990-12-31T23:59:59.000Z

    Issues presented are related to classification of weight of evidence in cancer risk assessments. The focus in this paper is on lines of evidence used in constructing a conclusion about potential human carcinogenicity. The paper also discusses issues that are mistakenly addressed as classification issues but are really part of the risk assessment process. 2 figs.

  13. Information resources used in health risk assessment by the New Jersey Department of Environmental Protection

    SciTech Connect (OSTI)

    Post, G.B.; Baratta, M.; Wolfson, S.; McGeorge, L. [New Jersey Department of Environmental Protection, Trenton (United States)

    1990-12-31T23:59:59.000Z

    The New Jersey Department of Environmental Protection`s responsibilities related to health-based risk assessment are described, including its research projects and its development of health based compound specific standards and guidance levels. The resources used by the agency to support health risk assessment work are outlined.

  14. A new risk assessment tool for multimodal transport of Dangerous Goods.

    E-Print Network [OSTI]

    Boyer, Edmond

    2001-93 A new risk assessment tool for multimodal transport of Dangerous Goods. Raphal DEFERT security issues are to be addressed when Dangerous Goods go through densely populated areas, others where ongoing research project relative to the assessment of the risk induced by the transport of Dangerous

  15. The Quantitative Assessment of Risk Caused By Fire and Explosion in Chemical Process Industry

    E-Print Network [OSTI]

    Boyer, Edmond

    The Quantitative Assessment of Risk Caused By Fire and Explosion in Chemical Process Industry Farid by the domino effect are the most destructive accidents related to industrial plants. Fire and explosion; Quantitative risk assessment; Explosions; Fires; Storage areas. 1. Introduction The accidents caused

  16. Human-robot interactions: model-based risk analysis and safety case construction

    E-Print Network [OSTI]

    Guiochet, Jrmie

    Human-robot interactions: model-based risk analysis and safety case construction Quynh Anh DO HOANG potential threats related to physical human-robot interactions and to assess the associated risks that might affect safety and dependability. Because of the complexity of human-robot interactions, rigorous

  17. Risk Informed Margins Management as part of Risk Informed Safety Margin Characterization

    SciTech Connect (OSTI)

    Curtis Smith

    2014-06-01T23:59:59.000Z

    The ability to better characterize and quantify safety margin is important to improved decision making about Light Water Reactor (LWR) design, operation, and plant life extension. A systematic approach to characterization of safety margins and the subsequent margin management options represents a vital input to the licensee and regulatory analysis and decision making that will be involved. In addition, as research and development in the LWR Sustainability (LWRS) Program and other collaborative efforts yield new data, sensors, and improved scientific understanding of physical processes that govern the aging and degradation of plant SSCs needs and opportunities to better optimize plant safety and performance will become known. To support decision making related to economics, readability, and safety, the Risk Informed Safety Margin Characterization (RISMC) Pathway provides methods and tools that enable mitigation options known as risk informed margins management (RIMM) strategies.

  18. Combining lifecycle and risk assessments of mineral waste reuse scenarios for decision making support

    SciTech Connect (OSTI)

    Benetto, Enrico [ECOINNOVA France, 47 rue M. Flandin, 69003 Lyon Cedex 3 (France)]. E-mail: benetto@ecoinnova.it; Tiruta-Barna, Ligia [INSA Lyon-LAEPSI, 20 rue A.Einstein, 69621 Villeurbanne cedex, since November 2005: INSA Toulouse-LIPE, 135 av. de Rangueil, 31077 Toulouse cedex France (France)]. E-mail: ligia.barna@insa-toulouse.fr; Perrodin, Yves [ENTPE-LSE, rue M.Audin, 69518 Vaulx-en-Velin cedex (France)]. E-mail: perrodin@entpe.fr

    2007-04-15T23:59:59.000Z

    Lack of regulations and standards on mineral waste recycling makes Life Cycle Assessment (LCA) and Ecological Risk Assessment (ERA) useful methods for environmental assessment of recycling scenarios. An unsolved problem arises whenever two scenarios of recycling have to be compared according to both ERA and LCA impact results considered simultaneously. A methodology to combine LCA and ERA results and tools toward Integrated Environmental Assessment (IEA) is proposed together with three application examples based on case studies. The most effective combination approach is to define further impact categories for ERA to be considered with the standard LCA ones. Then, the use of a multicriteria analysis method was proved to be an efficient way to rank alternative scenarios with respect to all the results. The key issues to be further researched are discussed and proposals are suggested.

  19. Comparative ranking of 0. 1 to 10 MW(e) solar thermal electric power systems. Volume I. Summary of results. Final report

    SciTech Connect (OSTI)

    Thornton, J.P.; Brown, K.C.; Finegold, J.G.; Gresham, J.B.; Herlevich, F.A.; Kowalik, J.S.; Kriz, T.A.

    1980-08-01T23:59:59.000Z

    This report is part of a two-volume set summarizing the results of a comparative ranking of generic solar thermal concepts designed specifically for electric power generation. The original objective of the study was to project the mid-1990 cost and performance of selected generic solar thermal electric power systems for utility applications and to rank these systems by criteria that reflect their future commercial acceptance. This study considered plants with rated capacities of 1 to 10 MW(e), operating over a range of capacity factors from the no-storage case to 0.7 and above. Later, the study was extended to include systems with capacities from 0.1 to 1 MW(e), a range that is attractive to industrial and other non-utility applications. This volume summarizes the results for the full range of capacities from 0.1 to 10 MW(e). Volume II presents data on performance and cost and ranking methodology.

  20. The Paradoxes of Military Risk Assessment: Will the Enterprise Risk Assessment Model, Composite Risk Management and Associated

    E-Print Network [OSTI]

    Johnson, Chris

    to assess the nation's military preparedness. However, risk management is not a panacea for the problemsThe Paradoxes of Military Risk Assessment: Will the Enterprise Risk Assessment Model, Composite Risk Management and Associated Techniques Provide the Predicted Benefits? Chris. W. Johnson, Glasgow

  1. Risk management study for the retired Hanford Site facilities: Qualitative risk evaluation for the retired Hanford Site facilities. Volume 3

    SciTech Connect (OSTI)

    Coles, G.A.; Shultz, M.V.; Taylor, W.E.

    1993-09-01T23:59:59.000Z

    This document provides a risk evaluation of the 100 and 200 Area retired, surplus facilities on the Hanford Site. Also included are the related data that were compiled by the risk evaluation team during investigations performed on the facilities. Results are the product of a major effort performed in fiscal year 1993 to produce qualitative information that characterizes certain risks associated with these facilities. The retired facilities investigated for this evaluation are located in the 100 and 200 Areas of the 1,450-km{sup 2} (570-mi{sup 2}) Hanford Site. The Hanford Site is a semiarid tract of land in southeastern Washington State. The nearest population center is Richland, Washington, (population 32,000) 30-km (20 mi) southeast of the 200 Area. During walkdown investigations of these facilities, data on real and potential hazards that threatened human health or safety or created potential environmental release issues were identified by the risk evaluation team. Using these findings, the team categorized the identified hazards by facility and evaluated the risk associated with each hazard. The factors contributing to each risk, and the consequence and likelihood of harm associated with each hazard also are included in this evaluation.

  2. Ecological risk assessment of offshore sediments at Hunters Point Shipyard, San Francisco, California

    SciTech Connect (OSTI)

    Baker, J.H.; Desmond, W.; Morgan-Butcher, N.; Donaldson, G.; Allison, T. [PRC Environmental Management, Inc., Houston, TX (United States)

    1995-12-31T23:59:59.000Z

    Hunters Point Shipyard (HPS) was used as a commercial dry dock from 1869 to 1939, when the property was purchased by the Navy. In 1989, HPS was placed on the National Priorities List, and the Navy implemented an RI/FS in accordance with CERCLA, as amended by SARA. In 1990, the US Department of Defense placed HPS on the base closure list, mandating that HPS be remediated and made available for nondefense use. From November 1995, to February 1996, sediment samples from 105 offshore stations were collected and analyzed for priority pollutants, AVS/SEM, grain size, sediment biochemical oxygen demand, total organic carbon, ammonia, and amphipod toxicity. Pore water was extracted and analyzed for priority pollutants, dissolved organic carbon, ammonia, sulfides, and toxicity testing using both Microtox{reg_sign} and echinoderm developmental tests. Total sediment chemistry was screened against NOAAs ER-Ls and ER-Ms and pore water chemistry was screened against NAWQC and San Francisco Bay water quality objectives. Hazard quotients and hazard indices were developed for each chemical with screening values. Multiple regression and correlation analysis were used to evaluate sediment and pore water toxicity with the collected chemical and physical parameters. Risk associated with offshore sediments were evaluated using the weight-of-evidence approach which resulted in a ranking of stations based on risk. Risks to aquatic avian receptors from feeding in the intertidal zone was calculated based on actual invertebrate tissue contaminant measurements and derivation of toxicity reference values.

  3. The private sector's capacity to manage climate risks and finance carbon neutral energy infrastructure

    E-Print Network [OSTI]

    Hart, Craig A

    2007-01-01T23:59:59.000Z

    This dissertation examines the financial aspects of climate change relating to the private sector's capacity to manage climate risks and finance carbon neutral energy infrastructure. The dissertation examines (a) potential ...

  4. Is California Different? State-Specific Risk Adjustment Needs under Health Reform

    E-Print Network [OSTI]

    Fulton, Brent D.; Dow, William H.

    2011-01-01T23:59:59.000Z

    Relative Risk Score Percentile Range for U.S. and CaliforniaScore U.S. Members California Members Difference PercentileRange Percentile Upper Mean SE Mean SE Mean z-statistic

  5. Risk factors for cognitive decline in older people with type 2 diabetes

    E-Print Network [OSTI]

    Feinkohl, Insa

    2014-07-05T23:59:59.000Z

    People with type 2 diabetes are at increased risk of age-related cognitive impairment. Previous literature has focused on case-control studies comparing rates of cognitive impairment in patients with and without diabetes. ...

  6. Liquid CO{sub 2}/Coal Slurry for Feeding Low Rank Coal to Gasifiers

    SciTech Connect (OSTI)

    Marasigan, Jose; Goldstein, Harvey; Dooher, John

    2013-09-30T23:59:59.000Z

    This study investigates the practicality of using a liquid CO{sub 2}/coal slurry preparation and feed system for the E-Gas gasifier in an integrated gasification combined cycle (IGCC) electric power generation plant configuration. Liquid CO{sub 2} has several property differences from water that make it attractive for the coal slurries used in coal gasification-based power plants. First, the viscosity of liquid CO{sub 2} is much lower than water. This means it should take less energy to pump liquid CO{sub 2} through a pipe compared to water. This also means that a higher solids concentration can be fed to the gasifier, which should decrease the heat requirement needed to vaporize the slurry. Second, the heat of vaporization of liquid CO{sub 2} is about 80% lower than water. This means that less heat from the gasification reactions is needed to vaporize the slurry. This should result in less oxygen needed to achieve a given gasifier temperature. And third, the surface tension of liquid CO{sub 2} is about 2 orders of magnitude lower than water, which should result in finer atomization of the liquid CO{sub 2} slurry, faster reaction times between the oxygen and coal particles, and better carbon conversion at the same gasifier temperature. EPRI and others have recognized the potential that liquid CO{sub 2} has in improving the performance of an IGCC plant and have previously conducted systemslevel analyses to evaluate this concept. These past studies have shown that a significant increase in IGCC performance can be achieved with liquid CO{sub 2} over water with certain gasifiers. Although these previous analyses had produced some positive results, they were still based on various assumptions for liquid CO{sub 2}/coal slurry properties. This low-rank coal study extends the existing knowledge base to evaluate the liquid CO{sub 2}/coal slurry concept on an E-Gas-based IGCC plant with full 90% CO{sub 2} capture. The overall objective is to determine if this technology could be used to reduce the cost and improve the efficiency of IGCC plants. The study goes beyond the systems-level analyses and initial lab work that formed the bases of previous studies and includes the following tasks: performing laboratory tests to quantify slurry properties; developing an engineering design of a liquid CO{sub 2} slurry preparation and feed system; conducting a full IGCC plant techno-economic analysis for Powder River Basin (PRB) coal and North Dakota lignite in both water and liquid CO{sub 2} slurries; and identifying a technology development plan to continue the due diligence to conduct a comprehensive evaluation of this technology. The initial task included rheology tests and slurry data analyses that would increase the knowledge and understanding of maximum solids loading capability for both PRB and lignite. Higher coal concentrations have been verified in liquid CO{sub 2} over water slurries, and a coal concentration of 75% by weight in liquid CO{sub 2} has been estimated to be achievable in a commercial application. In addition, lower slurry viscosities have been verified in liquid CO{sub 2} at the same solids loading, where the liquid CO{sub 2}/coal slurry viscosity has been measured to be about a factor of 10 lower than the comparable water slurry and estimated to be less than 100 centipoise in a commercial application. In the following task, an engineering design of a liquid CO{sub 2}/coal slurry preparation and mixing system has been developed for both a batch and continuous system. The capital cost of the design has also been estimated so that it could be used in the economic analysis. An industry search and survey has been conducted to determine if essential components required to construct the feed system are available from commercial sources or if targeted R&D efforts are required. The search and survey concluded that commercial sources are available for selected components that comprise both the batch and continuous type systems. During normal operation, the fuel exits the bottom of the coal silo and is fed to a rod mill fo

  7. Alerting device and method for reminding a person of a risk

    DOE Patents [OSTI]

    Runyon, Larry (Richland, WA) [Richland, WA; Gunter, Wayne M. (West Richland, WA) [West Richland, WA; Pratt, Richard M. (Richland, WA) [Richland, WA

    2001-11-27T23:59:59.000Z

    An alerting device and method to remind personnel of a risk is disclosed. The device has at least two sensors, a logic controller, a power source, and an annunciator that delivers a visual message, with or without an audible alarm, about a risk to a person when the sensors detect the person exiting a predetermined space. In particular, the present invention reminds a person of a security, safety, or health risk upon exiting a predetermined space. More particularly, the present invention reminds a person of an information security risk relating to sensitive, proprietary, confidential, trade secret, classified, or intellectual property information.

  8. Risk assessment of climate systems for national security.

    SciTech Connect (OSTI)

    Backus, George A.; Boslough, Mark Bruce Elrick; Brown, Theresa Jean; Cai, Ximing [University of Illinois-Urbana; Conrad, Stephen Hamilton; Constantine, Paul [Stanford University; Dalbey, Keith R.; Debusschere, Bert J.; Fields, Richard; Hart, David Blaine; Kalinina, Elena Arkadievna; Kerstein, Alan R.; Levy, Michael [National Center for Atmospheric Research; Lowry, Thomas Stephen; Malczynski, Leonard A.; Najm, Habib N.; Overfelt, James Robert; Parks, Mancel Jordan; Peplinski, William J.; Safta, Cosmin; Sargsyan, Khachik; Stubblefield, William Anthony; Taylor, Mark A.; Tidwell, Vincent Carroll; Trucano, Timothy Guy; Villa, Daniel L.

    2012-10-01T23:59:59.000Z

    Climate change, through drought, flooding, storms, heat waves, and melting Arctic ice, affects the production and flow of resource within and among geographical regions. The interactions among governments, populations, and sectors of the economy require integrated assessment based on risk, through uncertainty quantification (UQ). This project evaluated the capabilities with Sandia National Laboratories to perform such integrated analyses, as they relate to (inter)national security. The combining of the UQ results from climate models with hydrological and economic/infrastructure impact modeling appears to offer the best capability for national security risk assessments.

  9. RISK SEVERITY GUIDELINES For Issues Management Application

    E-Print Network [OSTI]

    RISK SEVERITY GUIDELINES For Issues Management Application OIA/OCA Risk Methodology, Document # 04 to LBNL #12;RISK SEVERITY GUIDELINES For Issues Management Application OIA/OCA Risk Methodology, Document.03.001.000, Rev. 3 Issue Management Program Application 11-30-13 IMPACT Impact is determined by considering what

  10. UNIVERSITY COLLEGE CORK RISK MANAGEMENT POLICY

    E-Print Network [OSTI]

    Schellekens, Michel P.

    1 UNIVERSITY COLLEGE CORK RISK MANAGEMENT POLICY 1. Risk Management 1.1 Responsibility of accountability, probity and compliance. Risk management is an essential element of the process of governance. 1.2 The HEA Code of Governance of Irish Universities emphasises the importance of Risk Management to good

  11. MASTER OF SCIENCE DEGREES IN Risk Management

    E-Print Network [OSTI]

    Johnson Jr.,, Ray

    MASTER OF SCIENCE DEGREES IN Risk Management About Queens College Often referred to as "the jewel.92$4#"!,&&%"*)0&$(.&/$6):,$)$-#")5,#$)*5$5,,4,#$&'%00$ &,/$%!$/6,7$6"4,$/"$&/)7$"*$/"4$"!$/6,%#$3,05&; Queens College master's degrees in Risk Management will help Master's Degrees in Risk Management Queens College offers 30credit MS in Risk Management degrees

  12. QUANTITATIVE RISK MANAGEMENT: CONCEPTS, TECHNIQUES AND TOOLS*

    E-Print Network [OSTI]

    Embrechts, Paul

    QUANTITATIVE RISK MANAGEMENT: CONCEPTS, TECHNIQUES AND TOOLS* Paul Embrechts Department of Mathematics ETH Zurich www.math.ethz.ch/~embrechts #12;QUANTITATIVE RISK MANAGEMENT: CONCEPTS, TECHNIQUES Theorems of Quantitative Risk Management · PE's Desert-Island Copula · Example 1: Credit Risk · Example 2

  13. Topics in Quantitative Risk Management Paul Embrechts

    E-Print Network [OSTI]

    Embrechts, Paul

    Topics in Quantitative Risk Management Paul Embrechts ETH-Z¨urich 1. Basel II and its risk management consequences 2. An overview of credit risk models 3. Modelling extremes: use and limitations 4@math.ethz.ch Homepage: http://www.math.ethz.ch/embrechts #12;Lecture 1: Basel II and its risk management consequences

  14. Risk management in concurrent engineering in presence of intelligent agents

    E-Print Network [OSTI]

    Fox, Mark S.

    Risk management in concurrent engineering in presence of intelligent agents Taner Bilgi describe how a specific facet of systems engineering (risks) can be managed for large, concurrent with risks. Risk management has three stages to it: 1. Risk assessment 2. Risk analysis 3. Risk handling Risk

  15. A socio-technical account of risk

    E-Print Network [OSTI]

    Dean, Wesley Raymond

    1994-01-01T23:59:59.000Z

    to determining risk. Roger E. and Jeanne X. Kasperson propose a conception of risk that is nevertheless still a species of the positivist concept. Unlike Starr and Whipple, the Kaspersons conception of risk focuses heavily on the influence of the human... Roger and Jeanne Kasperson. Not only does she question the manner in which risks are chosen for analysis, she also challenges the legitimacy of the methodologies associated with quantitative risk analysis. Jasanoff does this by performing a cross...

  16. Traffic-related air pollution exposures and changes in heart rate variability in Mexico City: A panel study

    E-Print Network [OSTI]

    2013-01-01T23:59:59.000Z

    to traffic-related air pollution and the risk of coronaryof particulate air pollution. Environ Health Perspect 2001,between ambient air pollution and daily mortality among

  17. Unanticipated potential cancer risk near metal recycling facilities

    SciTech Connect (OSTI)

    Raun, Loren, E-mail: raun@rice.edu [Department of Statistics, MS 138, Rice University, P.O. Box 1892, Houston, TX 77251-1892 (United States)] [Department of Statistics, MS 138, Rice University, P.O. Box 1892, Houston, TX 77251-1892 (United States); Pepple, Karl, E-mail: pepple.karl@epa.gov [State and Local Programs Group, Air Quality Policy Division, Office of Air Quality Planning and Standards, Policy, Analysis, and Communications Staff, Mail Drop C404-03, U.S. EPA, Research Triangle Park, NC 27711 (United States)] [State and Local Programs Group, Air Quality Policy Division, Office of Air Quality Planning and Standards, Policy, Analysis, and Communications Staff, Mail Drop C404-03, U.S. EPA, Research Triangle Park, NC 27711 (United States); Hoyt, Daniel, E-mail: hoyt.daniel@epa.gov [Air Surveillance Section, US EPA, Region 6, 6EN-AS, 1445 Ross Avenue, Dallas, TX 75202-2733 (United States)] [Air Surveillance Section, US EPA, Region 6, 6EN-AS, 1445 Ross Avenue, Dallas, TX 75202-2733 (United States); Richner, Donald, E-mail: Donald.Richner@houstontx.gov [Houston Department of Health and Human Services, Bureau of Pollution Control and Prevention, 7411 Park Place Blvd., Houston, TX 77087 (United States)] [Houston Department of Health and Human Services, Bureau of Pollution Control and Prevention, 7411 Park Place Blvd., Houston, TX 77087 (United States); Blanco, Arturo, E-mail: arturo.blanco@houstontx.gov [Pollution Control and Prevention, Environmental Health Division, Houston Department of Health and Human Services, 7411 Park Place Blvd., Houston, TX 77087 (United States)] [Pollution Control and Prevention, Environmental Health Division, Houston Department of Health and Human Services, 7411 Park Place Blvd., Houston, TX 77087 (United States); Li, Jiao, E-mail: jiao.li@rice.edu [Wiess School of Natural Science, Rice University, 6100 Main St., Houston, TX 77005 (United States)] [Wiess School of Natural Science, Rice University, 6100 Main St., Houston, TX 77005 (United States)

    2013-07-15T23:59:59.000Z

    Metal recycling is an important growing industry. Prior to this study, area sources consisting of metal recycling facilities fell in a category of limited regulatory scrutiny because of assumed low levels of annual emissions. Initiating with community complaints of nuisance from smoke, dust and odor, the Houston Department of Health and Human Services (HDHHS) began a monitoring program outside metal recycler facilities and found metal particulates in outdoor ambient air at levels which could pose a carcinogenic human health risk. In a study of five similar metal recycler facilities which used a torch cutting process, air downwind and outside the facility was sampled for eight hours between 6 and 10 times each over 18 months using a mobile laboratory. Ten background locations were also sampled. Iron, manganese, copper, chromium, nickel, lead, cobalt, cadmium and mercury were detected downwind of the metal recyclers at frequencies ranging from 100% of the time for iron to 2% of the time for mercury. Of these metals, chromium, nickel, lead, cobalt, cadmium and mercury were not detected in any sample in the background. Two pairs of samples were analyzed for total chromium and hexavalent chromium to establish a ratio of the fraction of hexavalent chromium in total chromium. This fraction was used to estimate hexavalent chromium at all locations. The carcinogenic risk posed to a residential receptor from metal particulate matter concentrations in the ambient air attributed to the metal recyclers was estimated from each of the five facilities in an effort to rank the importance of this source and inform the need for further investigation. The total risk from these area sources ranged from an increased cancer risk of 1 in 1,000,000 to 6 in 10,000 using the 95th upper confidence limit of the mean of the carcinogenic metal particulate matter concentration, assuming the point of the exposure is the sample location for a residential receptor after accounting for wind direction and the number of shifts that could operate a year. Further study is warranted to better understand the metal air pollution levels in the community and if necessary, to evaluate the feasibility of emission controls and identify operational improvements and best management practices for this industry. This research adds two new aspects to the literature: identification of types and magnitude of metal particulate matter air pollutants associated with a previously unrecognized area source, metal recyclers and their potential risk to health. -- Highlights: Air monitoring study in response to community complaints found metal contamination. Metal recyclers found to potentially pose cancer from metal particulates Chromium, nickel, cobalt and cadmium samples were detected in five metal recyclers. These metals were not detected in background air samples. Estimated increased cancer risk ranges from 1 in 1,000,000 to 8 in 10,000.

  18. The risk implications of approaches to setting soil remediation goals at hazardous waste contaminated sites

    SciTech Connect (OSTI)

    Labieniec, P.A.

    1994-08-01T23:59:59.000Z

    An integrated exposure and carcinogenic risk assessment model for organic contamination in soil, SoilRisk, was developed and used for evaluating the risk implications of both site-specific and uniform-concentration approaches to setting soil remediation goals at hazardous-waste-contaminated sites. SoilRisk was applied to evaluate the uncertainty in the risk estimate due to uncertainty in site conditions at a representative site. It was also used to evaluate the variability in risk across a region of sites that can occur due to differences in site characteristics that affect contaminant transport and fate when a uniform concentration approach is used. In evaluating regional variability, Ross County, Ohio and the State of Ohio were used as examples. All analyses performed considered four contaminants (benzene, trichloroethylene (TCE), chlordane, and benzo[a]pyrene (BAP)) and four exposure scenarios (commercial, recreational and on- and offsite residential). Regardless of whether uncertainty in risk at a single site or variability in risk across sites was evaluated, the exposure scenario specified and the properties of the target contaminant had more influence than variance in site parameters on the resulting variance and magnitude of the risk estimate. In general, variance in risk was found to be greater for the relatively less degradable and more mobile of the chemicals studied (TCE and chlordane) than for benzene which is highly degradable and BAP which is very immobile in the subsurface.

  19. Unit 15: Risk Management To explain the concept of risk & to develop its role

    E-Print Network [OSTI]

    Finkelstein, Anthony

    1 Unit 15: Risk Management Objectives To explain the concept of risk & to develop its role within the software development process To introduce the use of risk management as a means of identifying Techniques & heuristics for the identification, analysis, treatment & monitoring of risk Risk management

  20. RISK MANAGEMENT AND RISK ANALYSIS-BASED DECISION TOOLS FOR ATTACKS ON

    E-Print Network [OSTI]

    Wang, Hai

    RISK MANAGEMENT AND RISK ANALYSIS- BASED DECISION TOOLS FOR ATTACKS ON ELECTRIC POWER Simonoff, J.usc.edu/create Report #04-004DRAFT #12;Risk Management and Risk Analysis-Based Decision Tools for Attacks on Electric for Risk and Economic Analysis of Terrorism Events University of Southern California Los Angeles

  1. Review of the Limerick Generating Station Probabilistic Risk Assessment

    SciTech Connect (OSTI)

    Papazoglou, I.A.; Karol, R.; Shiu, K.; Fiarman, S.; Lederman, L.; Ludewig, H.; Pratt, W.T.; Bari, R.A.

    1983-02-01T23:59:59.000Z

    A review of the Probabilistic Risk Assessment of the Limerick Generating Station was conducted with the broad objective of evaluating its risks in relation to those identified in the Reactor Safety Study (WASH-1400). The review included a technical assessment of the assumptions and methods used in the Limerick study. It also included a re-evaluation of the main results within the scope and general methodological framework of the study. This included both qualitative and quantitative analyses of accident initiators, data bases, accident sequences which result in core damage, core melt phenomena, fission product behavior, and offsite consequences. Specific comparisons were made between the Limerick study, the Brookhaven review, and the WASH-1400 reactor for the core damage frequency and the average frequencies of acute and latent fatalities. The effect of uncertainties was considered throughout the review process and the uncertainty bands for the risk indices were quantified.

  2. Rank in materials science Rank in chemistry

    E-Print Network [OSTI]

    Adler, Joan

    ,503 60.12 31 Paul W.M. Blom University of Groningen 37 2,176 58.81 32 Jenny Nelson Imperial College London 31 1,821 58.74 33 David J. Mooney Harvard University 43 2,512 58.42 34 Tsu-Wei Chou University

  3. Air Risk Information Support Center

    SciTech Connect (OSTI)

    Shoaf, C.R.; Guth, D.J. [Environmental Protection Agency, Washington, DC (United States)

    1990-12-31T23:59:59.000Z

    The Air Risk Information Support Center (Air RISC) was initiated in early 1988 by the US Environmental Protection Agency`s (EPA) Office of Health and Environmental Assessment (OHEA) and the Office of Air Quality Planning and Standards (OAQPS) as a technology transfer effort that would focus on providing information to state and local environmental agencies and to EPA Regional Offices in the areas of health, risk, and exposure assessment for toxic air pollutants. Technical information is fostered and disseminated by Air RISCs three primary activities: (1) a {open_quotes}hotline{close_quotes}, (2) quick turn-around technical assistance projects, and (3) general technical guidance projects. 1 ref., 2 figs.

  4. ORISE: Crisis and Risk Communication

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated CodesTransparencyDOE ProjectCrisis and Risk Communication Crisis and Risk

  5. Comprehensive, Quantitative Risk Assessment of CO{sub 2} Geologic Sequestration

    SciTech Connect (OSTI)

    Lepinski, James

    2013-09-30T23:59:59.000Z

    A Quantitative Failure Modes and Effects Analysis (QFMEA) was developed to conduct comprehensive, quantitative risk assessments on CO{sub 2} capture, transportation, and sequestration or use in deep saline aquifers, enhanced oil recovery operations, or enhanced coal bed methane operations. The model identifies and characterizes potential risks; identifies the likely failure modes, causes, effects and methods of detection; lists possible risk prevention and risk mitigation steps; estimates potential damage recovery costs, mitigation costs and costs savings resulting from mitigation; and ranks (prioritizes) risks according to the probability of failure, the severity of failure, the difficulty of early failure detection and the potential for fatalities. The QFMEA model generates the necessary information needed for effective project risk management. Diverse project information can be integrated into a concise, common format that allows comprehensive, quantitative analysis, by a cross-functional team of experts, to determine: What can possibly go wrong? How much will damage recovery cost? How can it be prevented or mitigated? What is the cost savings or benefit of prevention or mitigation? Which risks should be given highest priority for resolution? The QFMEA model can be tailored to specific projects and is applicable to new projects as well as mature projects. The model can be revised and updated as new information comes available. It accepts input from multiple sources, such as literature searches, site characterization, field data, computer simulations, analogues, process influence diagrams, probability density functions, financial analysis models, cost factors, and heuristic best practices manuals, and converts the information into a standardized format in an Excel spreadsheet. Process influence diagrams, geologic models, financial models, cost factors and an insurance schedule were developed to support the QFMEA model. Comprehensive, quantitative risk assessments were conducted on three (3) sites using the QFMEA model: (1) SACROC Northern Platform CO{sub 2}-EOR Site in the Permian Basin, Scurry County, TX, (2) Pump Canyon CO{sub 2}-ECBM Site in the San Juan Basin, San Juan County, NM, and (3) Farnsworth Unit CO{sub 2}-EOR Site in the Anadarko Basin, Ochiltree County, TX. The sites were sufficiently different from each other to test the robustness of the QFMEA model.

  6. Risk-based Prioritization of Facility Decommissioning and Environmental Restoration Projects in the National Nuclear Legacy Liabilities Program at the Chalk River Laboratory - 13564

    SciTech Connect (OSTI)

    Nelson, Jerel G.; Kruzic, Michael [WorleyParsons, Mississauga, ON, L4W 4H2 (United States)] [WorleyParsons, Mississauga, ON, L4W 4H2 (United States); Castillo, Carlos [WorleyParsons, Las Vegas, NV 89128 (United States)] [WorleyParsons, Las Vegas, NV 89128 (United States); Pavey, Todd [WorleyParsons, Idaho Falls, ID 83402 (United States)] [WorleyParsons, Idaho Falls, ID 83402 (United States); Alexan, Tamer [WorleyParsons, Burnaby, BC, V5C 6S7 (United States)] [WorleyParsons, Burnaby, BC, V5C 6S7 (United States); Bainbridge, Ian [Atomic Energy Canada Limited, Chalk River Laboratories, Chalk River, ON, K0J1J0 (Canada)] [Atomic Energy Canada Limited, Chalk River Laboratories, Chalk River, ON, K0J1J0 (Canada)

    2013-07-01T23:59:59.000Z

    Chalk River Laboratory (CRL), located in Ontario Canada, has a large number of remediation projects currently in the Nuclear Legacy Liabilities Program (NLLP), including hundreds of facility decommissioning projects and over one hundred environmental remediation projects, all to be executed over the next 70 years. Atomic Energy of Canada Limited (AECL) utilized WorleyParsons to prioritize the NLLP projects at the CRL through a risk-based prioritization and ranking process, using the WorleyParsons Sequencing Unit Prioritization and Estimating Risk Model (SUPERmodel). The prioritization project made use of the SUPERmodel which has been previously used for other large-scale site prioritization and sequencing of facilities at nuclear laboratories in the United States. The process included development and vetting of risk parameter matrices as well as confirmation/validation of project risks. Detailed sensitivity studies were also conducted to understand the impacts that risk parameter weighting and scoring had on prioritization. The repeatable prioritization process yielded an objective, risk-based and technically defendable process for prioritization that gained concurrence from all stakeholders, including Natural Resources Canada (NRCan) who is responsible for the oversight of the NLLP. (authors)

  7. Compact complex manifolds as models Main theorem Strongly minimal groups Higher rank groups Questions Groups in the theory of compact complex

    E-Print Network [OSTI]

    Scanlon, Thomas

    = {z U | f (z) = 0}. Definition The structure CCM is the multisorted structure having a sort M Questions Basic model theory of CCM · CCM eliminates quantifiers. Thomas Scanlon University of California theorem Strongly minimal groups Higher rank groups Questions Basic model theory of CCM · CCM eliminates

  8. Ranked in the top 50 MFA programs in the nation by Poets & Writers, the nation's largest nonprofit organization for creative writers

    E-Print Network [OSTI]

    Barrash, Warren

    Ranked in the top 50 MFA programs in the nation by Poets & Writers, the nation's largest, starred reviews in Publishers Weekly and been named Notable Books by the Academy of American Poets's leading poets, with chapbooks that are available free of charge and without copyright #12;

  9. Expanding Global Network: Discovery to Delivery The United States ranks #1 in innovation. Purdue is preparing for the 21st century global

    E-Print Network [OSTI]

    challenges global health, global competitiveness, global energy security, global warming, global and visibility that Purdue enjoys at all levels globally. Provide global experience for Purdue facultyExpanding Global Network: Discovery to Delivery The United States ranks #1 in innovation. Purdue

  10. Documents Required by the Office of Academic Affairs for Clinician Educator Actions, October 2014 Rank Action Duration Required documents (Number of letters shown are minimums)

    E-Print Network [OSTI]

    Puglisi, Joseph

    Documents Required by the Office of Academic Affairs for Clinician Educator Actions, October 2014 Rank Action Duration Required documents (Number of letters shown are minimums) Clinical Instructor% FTE or greater and who have outside clinical activity, http://med.stanford.edu/academicaffairs/documents

  11. Augmenting Probabilistic Risk Assesment with Malevolent Initiators

    SciTech Connect (OSTI)

    Curtis Smith; David Schwieder

    2011-11-01T23:59:59.000Z

    As commonly practiced, the use of probabilistic risk assessment (PRA) in nuclear power plants only considers accident initiators such as natural hazards, equipment failures, and human error. Malevolent initiators are ignored in PRA, but are considered the domain of physical security, which uses vulnerability assessment based on an officially specified threat (design basis threat). This paper explores the implications of augmenting and extending existing PRA models by considering new and modified scenarios resulting from malevolent initiators. Teaming the augmented PRA models with conventional vulnerability assessments can cost-effectively enhance security of a nuclear power plant. This methodology is useful for operating plants, as well as in the design of new plants. For the methodology, we have proposed an approach that builds on and extends the practice of PRA for nuclear power plants for security-related issues. Rather than only considering 'random' failures, we demonstrated a framework that is able to represent and model malevolent initiating events and associated plant impacts.

  12. Gasbuggy Site Assessment and Risk Evaluation

    SciTech Connect (OSTI)

    None

    2011-03-01T23:59:59.000Z

    The Gasbuggy site is in northern New Mexico in the San Juan Basin, Rio Arriba County (Figure 1-1). The Gasbuggy experiment was designed to evaluate the use of a nuclear detonation to enhance natural gas production from the Pictured Cliffs Formation, a tight, gas-bearing sandstone formation. The 29-kiloton-yield nuclear device was placed in a 17.5-inch wellbore at 4,240 feet (ft) below ground surface (bgs), approximately 40 ft below the Pictured Cliffs/Lewis shale contact, in an attempt to force the cavity/chimney formed by the detonation up into the Pictured Cliffs Sandstone. The test was conducted below the southwest quarter of Section 36, Township 29 North, Range 4 West, New Mexico Principal Meridian. The device was detonated on December 10, 1967, creating a 335-ft-high chimney above the detonation point and a cavity 160 ft in diameter. The gas produced from GB-ER (the emplacement and reentry well) during the post-detonation production tests was radioactive and diluted, primarily by carbon dioxide. After 2 years, the energy content of the gas had recovered to 80 percent of the value of gas in conventionally developed wells in the area. There is currently no technology capable of remediating deep underground nuclear detonation cavities and chimneys. Consequently, the U.S. Department of Energy (DOE) must continue to manage the Gasbuggy site to ensure that no inadvertent intrusion into the residual contamination occurs. DOE has complete control over the 1/4 section (160 acres) containing the shot cavity, and no drilling is permitted on that property. However, oil and gas leases are on the surrounding land. Therefore, the most likely route of intrusion and potential exposure would be through contaminated natural gas or contaminated water migrating into a producing natural gas well outside the immediate vicinity of ground zero. The purpose of this report is to describe the current site conditions and evaluate the potential health risks posed by the most plausible contaminant exposure scenario, drilling of natural gas wells near the site. The results of this risk evaluation will guide DOE's future surveillance and monitoring activities in the area to ensure that site conditions are adequately protective of human health. This evaluation is not a comprehensive risk assessment for the site; it is intended to provide assurance that DOE's monitoring approach can detect the presence of site-related contamination at levels well below those that would pose an unacceptable risk to human health.

  13. Understanding the nature of nuclear power plant risk

    SciTech Connect (OSTI)

    Denning, R. S. [Ohio State Univ., 201 West 19th Avenue, Columbus, OH 43210-1142 (United States)

    2012-07-01T23:59:59.000Z

    This paper describes the evolution of understanding of severe accident consequences from the non-mechanistic assumptions of WASH-740 to WASH-1400, NUREG-1150, SOARCA and today in the interpretation of the consequences of the accident at Fukushima. As opposed to the general perception, the radiological human health consequences to members of the Japanese public from the Fukushima accident will be small despite meltdowns at three reactors and loss of containment integrity. In contrast, the radiation-related societal impacts present a substantial additional economic burden on top of the monumental task of economic recovery from the nonnuclear aspects of the earthquake and tsunami damage. The Fukushima accident provides additional evidence that we have mis-characterized the risk of nuclear power plant accidents to ourselves and to the public. The human health risks are extremely small even to people living next door to a nuclear power plant. The principal risk associated with a nuclear power plant accident involves societal impacts: relocation of people, loss of land use, loss of contaminated products, decontamination costs and the need for replacement power. Although two of the three probabilistic safety goals of the NRC address societal risk, the associated quantitative health objectives in reality only address individual human health risk. This paper describes the types of analysis that would address compliance with the societal goals. (authors)

  14. OUT OF BOUNDS SKIERS AND AVALANCHE RISK: HIGH-RISK COHORT IDENTIFICATION AND CHARACTERIZATION

    E-Print Network [OSTI]

    and Characterization Project No.: 487 Examining Committee: Chair: Anna Usborne Master of Resource Management Candidate risk assessment; high-risk cohort; risk perception; sensation seeking scale; self-efficacy; discrete

  15. The 'Becoming' Insurable of Terrorism Risk in the US: Imagining Systemic Risk

    E-Print Network [OSTI]

    Bougen, Philip

    2011-01-01T23:59:59.000Z

    Works Cited Beck, U. (1992). Risk society: towards a newSage. Beck, U. (1999). World risk society . London: Polity.The terrorist threat: world risk society revisited. Theory,

  16. The role of risk management in the design of diagnostics for fusion reactors

    SciTech Connect (OSTI)

    Ingesson, L. C. [Fusion for Energy, Josep Pla 2, Torres Diagonal Litoral B3, 08019 Barcelona (Spain); Collaboration: F4E Diagnostic Project Team

    2014-08-21T23:59:59.000Z

    A project-oriented approach is beneficial for the selection and design of viable diagnostics for fusion reactors because of the associated complex physical and organizational environment. The project-oriented approach includes rigorous risk management. The nature and impact of risks related to technical, organizational and commercial aspects in relation to the development of ITER diagnostics under EU responsibility are analyzed. The majority of risks are related to organizational aspects and technical feasibility issues. The experience with ITER is extrapolated to DEMO and beyond. It should not be taken for granted that technical solutions will be found, while a risk analysis of various diagnostic techniques with quantitative assessments undertaken early in the design of DEMO would be beneficial.

  17. Integrated Disposal Facility Risk Assessment

    SciTech Connect (OSTI)

    MANN, F. M.

    2003-06-03T23:59:59.000Z

    An environmental risk assessment associated with the disposal of projected Immobilized Low-Activity Waste, solid wastes and failed or decommissioned melters in an Integrated Disposal Facility was performed. Based on the analyses all performance objectives associated with the groundwater, air, and intruder pathways were met.

  18. Decision Support and Risk Management

    E-Print Network [OSTI]

    and emergency management officials during the planning, incident management preparedness, and response phasesDecision Support and Risk Management CVMDM: Community Vaccination and Mass Dispensing Model What and the performance of prophylaxis supply logistics and PODs. Decision and Information Sciences Division Decision

  19. Geothermal: Related Links

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

    Related Links Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us HomeBasic Search About Publications Advanced Search New Hot Docs News Related Links...

  20. LAVA (Los Alamos Vulnerability and Risk Assessment Methodology): A conceptual framework for automated risk analysis

    SciTech Connect (OSTI)

    Smith, S.T.; Lim, J.J.; Phillips, J.R.; Tisinger, R.M.; Brown, D.C.; FitzGerald, P.D.

    1986-01-01T23:59:59.000Z

    At Los Alamos National Laboratory, we have developed an original methodology for performing risk analyses on subject systems characterized by a general set of asset categories, a general spectrum of threats, a definable system-specific set of safeguards protecting the assets from the threats, and a general set of outcomes resulting from threats exploiting weaknesses in the safeguards system. The Los Alamos Vulnerability and Risk Assessment Methodology (LAVA) models complex systems having large amounts of ''soft'' information about both the system itself and occurrences related to the system. Its structure lends itself well to automation on a portable computer, making it possible to analyze numerous similar but geographically separated installations consistently and in as much depth as the subject system warrants. LAVA is based on hierarchical systems theory, event trees, fuzzy sets, natural-language processing, decision theory, and utility theory. LAVA's framework is a hierarchical set of fuzzy event trees that relate the results of several embedded (or sub-) analyses: a vulnerability assessment providing information about the presence and efficacy of system safeguards, a threat analysis providing information about static (background) and dynamic (changing) threat components coupled with an analysis of asset ''attractiveness'' to the dynamic threat, and a consequence analysis providing information about the outcome spectrum's severity measures and impact values. By using LAVA, we have modeled our widely used computer security application as well as LAVA/CS systems for physical protection, transborder data flow, contract awards, and property management. It is presently being applied for modeling risk management in embedded systems, survivability systems, and weapons systems security. LAVA is especially effective in modeling subject systems that include a large human component.

  1. Recognizing and Assigning ESPC Risks and Responsibilities Using the Risk, Responsibility, and Performance Matrix

    Broader source: Energy.gov [DOE]

    Document offers guidance on how to recognize and assign energy savings performance contract (ESPC) risks and responsibilities using the risk, responsibility, and performance matrix, also known as RRPM.

  2. Development and validation of instantaneous risk model in nuclear power plant's risk monitor

    SciTech Connect (OSTI)

    Wang, J.; Li, Y.; Wang, F.; Wang, J.; Hu, L. [Inst. of Nuclear Energy Safety Technology, Chinese Academy of Sciences, Hefei, Anhui, 230031 (China); School of Nuclear Science and Technology, Univ. of Science and Technology of China, Hefei, Anhui, 230031 (China)

    2012-07-01T23:59:59.000Z

    The instantaneous risk model is the fundament of calculation and analysis in a risk monitor. This study focused on the development and validation of an instantaneous risk model. Therefore the principles converting from the baseline risk model to the instantaneous risk model were studied and separated trains' failure modes modeling method was developed. The development and validation process in an operating nuclear power plant's risk monitor were also introduced. Correctness of instantaneous risk model and rationality of converting method were demonstrated by comparison with the result of baseline risk model. (authors)

  3. Conditional risk in volatility models Risk parameter in volatility models

    E-Print Network [OSTI]

    Jeanjean, Louis

    are of the form t = tt where (t) is iid, t > 0, t and t are independent. For GARCH-type (Generalized (GARCH), 2009) for an impressive list of more than one hundred GARCH-type models. Francq, Zakoian Risk Examples Standard GARCH(p,q) (Engle (82), Bollerslev (86)): 2 t = 0 + q i=1 0i 2 t-i + p j=1 0j2 t

  4. Compliance & Risk Assessment | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsNovember 13, 2014 BuildingEnergy EfficiencyPastCompetitive ResourceComplex

  5. Screening Analysis for the Environmental Risk Evaluation System Fiscal Year 2011 Report Environmental Effects of Offshore Wind Energy

    SciTech Connect (OSTI)

    Copping, Andrea E.; Hanna, Luke A.

    2011-11-01T23:59:59.000Z

    Potential environmental effects of offshore wind (OSW) energy development are not well understood, and yet regulatory agencies are required to make decisions in spite of substantial uncertainty about environmental impacts and their long-term consequences. An understanding of risks associated with interactions between OSW installations and avian and aquatic receptors, including animals, habitats, and ecosystems, can help define key uncertainties and focus regulatory actions and scientific studies on interactions of most concern. During FY 2011, Pacific Northwest National Laboratory (PNNL) scientists adapted and applied the Environmental Risk Evaluation System (ERES), first developed to examine the effects of marine and hydrokinetic energy devices on aquatic environments, to offshore wind development. PNNL scientists conducted a risk screening analysis on two initial OSW cases: a wind project in Lake Erie and a wind project off the Atlantic coast of the United States near Atlantic City, New Jersey. The screening analysis revealed that top-tier stressors in the two OSW cases were the dynamic effects of the device (e.g., strike), accidents/disasters, and effects of the static physical presence of the device, such as alterations in bottom habitats. Receptor interactions with these stressors at the highest tiers of risk were dominated by threatened and endangered animals. Risk to the physical environment from changes in flow regime also ranked high. Peer review of this process and results will be conducted during FY 2012. The ERES screening analysis provides an assessment of the vulnerability of environmental receptors to stressors associated with OSW installations; a probability analysis is needed to determine specific risk levels to receptors. As more data become available that document effects of offshore wind farms on specific receptors in U.S. coastal and Great Lakes waters, probability analyses will be performed.

  6. RISK ASSESSMENT TECHNICAL EXPERT WORKING GROUP

    Broader source: Energy.gov [DOE]

    The Risk Assessment Technical Expert Working Group (RWG) is established to assist the Department of Energy (DOE) with the appropriate and effective use of quantitative risk assessment in nuclear...

  7. PFPC: Building an IT Risk Management Competency

    E-Print Network [OSTI]

    Westerman, George

    2005-07-29T23:59:59.000Z

    IT Risk management is becoming increasingly important for CIOs and their executive counterparts. Educators and managers have materials they can use to discuss specific IT risks in project management, security and other ...

  8. Understanding risk in a biopharmaceutical portfolio

    E-Print Network [OSTI]

    Wagner, Alice Elizabeth, 1980-

    2011-01-01T23:59:59.000Z

    Investors have difficulty funding the life sciences because of the high risks involved in research and development and commercialization of new products. Risk in the biopharmaceutical industry is the result of scientific, ...

  9. Minimizing Project Risk Through Financing Strategies

    E-Print Network [OSTI]

    Michaelson, M.

    One of the major barriers to greater corporate investment in energy conservation, cogeneration and alternative energy projects is the level of risk associated with these investments. Potential risks include technical malfunction of the equipment and...

  10. High performance in Procurement Risk Management

    E-Print Network [OSTI]

    Olsha, Maya (Olsha-Yehiav)

    2010-01-01T23:59:59.000Z

    Research on Procurement Risk Management has been conducted by Accenture and MIT in order to identify the best practices used to manage commodity price volatility and supplier risk. In today's increasingly turbulent market ...

  11. Does accounting quality mitigate risk shifting?

    E-Print Network [OSTI]

    Loktionov, Yuri V

    2009-01-01T23:59:59.000Z

    This study examines the effect of financial reporting quality on risk shifting, an investment distortion that is caused by shareholders' incentives to engage in high-risk projects that are detrimental to debt holders. I ...

  12. Modeling Risks in Infrastructure Asset Management

    E-Print Network [OSTI]

    Seyedolshohadaie, Seyed Reza

    2012-10-19T23:59:59.000Z

    in privatizing and operational risks in maintenance and rehabilitation of infrastructure facilities. To this end, a valuation procedure for valuing large-scale risky projects is proposed. This valuation approach is based on mean-risk portfolio optimization...

  13. Risk in the Global Supply Chain

    E-Print Network [OSTI]

    Datta, Shoumen

    2006-01-01T23:59:59.000Z

    Carbon footprints are not on the priority list of risk analysts in operations management for at least half or more of global businesses. What are the other risks in the global supply chain?

  14. D&D and Risk Assessment Tools

    Broader source: Energy.gov [DOE]

    ORISE and PNNL both developed tools to assist in the risk assessment and planning of D&D activities.PNNL developed a Risk D&D tool, a rapid prototype computerbased model, to evaluate...

  15. Risk Management in Lean Product Development

    E-Print Network [OSTI]

    Oehmen, Josef

    This whitepaper summarizes 15 years of research conducted at MIT's Lean Advancement Initiative on the topic of risk management in product design and development. It discusses current challenges in risk management for product ...

  16. UK Climate Change Risk Assessment and National

    E-Print Network [OSTI]

    Wirosoetisno, Djoko

    UK Climate Change Risk Assessment and National Adaptation Programme Meg Patel Defra #12 change #12;Weather & climate impacts - economic, societal, environmental Water consumption per capita;Legislative Framework Climate Change Act 2008 Adaptation Reporting Power 2011 Climate Change Risk Assessment

  17. A Survey of Systemic Risk Analytics

    E-Print Network [OSTI]

    Bisias, Dimitrios

    We provide a survey of 31 quantitative measures of systemic risk in the economics and finance literature, chosen to span key themes and issues in systemic risk measurement and management. We motivate these measures from ...

  18. EPA`s risk assessment guidelines: Overview

    SciTech Connect (OSTI)

    Patton, D.E. [Environmental Protection Agency, Washington, DC (United States)

    1990-12-31T23:59:59.000Z

    The US Environmental Protection Agency (EPA) risk assessment guidelines for cancer, quantification, and exposure issues are discussed.

  19. Optimization Online - Operations Risk Management by Planning ...

    E-Print Network [OSTI]

    Emmanuel Fragnire

    2007-08-01T23:59:59.000Z

    Aug 1, 2007 ... Operations Risk Management by Planning Optimally the Qualified Workforce Capacity. Emmanuel Fragnire(Emmanuel.Fragniere ***at***...

  20. On the minimization of operational risks

    E-Print Network [OSTI]

    V. P. Maslov

    2006-12-14T23:59:59.000Z

    We give a risk-minimizing formula for government investments taking into account the zero intelligence law for financial markets.