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1

Regulatory Uncertainty and Regulatory Scope Thomas P. Lyon  

E-Print Network (OSTI)

, is the shift from municipal to state regulation of natural gas and electricity that occurred in the first in the natural gas industry, and notes that "[S]tate regulatory commissions were less responsive to the demands of local voters and consumers. On average, state regulators tolerated higher gas rates than did local

Lyon, Thomas P.

2

The method of belief scales as a means for dealing with uncertainty in tough regulatory decisions.  

SciTech Connect

Modeling and simulation is playing an increasing role in supporting tough regulatory decisions, which are typically characterized by variabilities and uncertainties in the scenarios, input conditions, failure criteria, model parameters, and even model form. Variability exists when there is a statistically significant database that is fully relevant to the application. Uncertainty, on the other hand, is characterized by some degree of ignorance. A simple algebraic problem was used to illustrate how various risk methodologies address variability and uncertainty in a regulatory context. These traditional risk methodologies include probabilistic methods (including frequensic and Bayesian perspectives) and second-order methods where variabilities and uncertainties are treated separately. Representing uncertainties with (subjective) probability distributions and using probabilistic methods to propagate subjective distributions can lead to results that are not logically consistent with available knowledge and that may not be conservative. The Method of Belief Scales (MBS) is developed as a means to logically aggregate uncertain input information and to propagate that information through the model to a set of results that are scrutable, easily interpretable by the nonexpert, and logically consistent with the available input information. The MBS, particularly in conjunction with sensitivity analyses, has the potential to be more computationally efficient than other risk methodologies. The regulatory language must be tailored to the specific risk methodology if ambiguity and conflict are to be avoided.

Pilch, Martin M.

2005-10-01T23:59:59.000Z

3

Assessing Fatigue and Ultimate Load Uncertainty in Floating Offshore Wind Turbines Due to Varying Simulation Length  

DOE Green Energy (OSTI)

With the push towards siting wind turbines farther offshore due to higher wind quality and less visibility, floating offshore wind turbines, which can be located in deep water, are becoming an economically attractive option. The International Electrotechnical Commission's (IEC) 61400-3 design standard covers fixed-bottom offshore wind turbines, but there are a number of new research questions that need to be answered to modify these standards so that they are applicable to floating wind turbines. One issue is the appropriate simulation length needed for floating turbines. This paper will discuss the results from a study assessing the impact of simulation length on the ultimate and fatigue loads of the structure, and will address uncertainties associated with changing the simulation length for the analyzed floating platform. Recommendations of required simulation length based on load uncertainty will be made and compared to current simulation length requirements.

Stewart, G.; Lackner, M.; Haid, L.; Matha, D.; Jonkman, J.; Robertson, A.

2013-07-01T23:59:59.000Z

4

Assessing Fatigue and Ultimate Load Uncertainty in Floating Offshore Wind Turbines Due to Varying Simulation Length  

SciTech Connect

With the push towards siting wind turbines farther offshore due to higher wind quality and less visibility, floating offshore wind turbines, which can be located in deep water, are becoming an economically attractive option. The International Electrotechnical Commission's (IEC) 61400-3 design standard covers fixed-bottom offshore wind turbines, but there are a number of new research questions that need to be answered to modify these standards so that they are applicable to floating wind turbines. One issue is the appropriate simulation length needed for floating turbines. This paper will discuss the results from a study assessing the impact of simulation length on the ultimate and fatigue loads of the structure, and will address uncertainties associated with changing the simulation length for the analyzed floating platform. Recommendations of required simulation length based on load uncertainty will be made and compared to current simulation length requirements.

Stewart, G.; Lackner, M.; Haid, L.; Matha, D.; Jonkman, J.; Robertson, A.

2013-07-01T23:59:59.000Z

5

Investment under Regulatory Uncertainty: U.S. Electricity Generation Investment Since 1996  

E-Print Network (OSTI)

Demand. North American Electricity Reliability Council.Regulatory Risk in U.K. Electricity Distribution. ” JournalAn Empirical Model of Electricity Generation Investment

Ishii, Jun; Yan, Jingming

2004-01-01T23:59:59.000Z

6

CSEM WP 127 Investment under Regulatory Uncertainty  

E-Print Network (OSTI)

power producers in recent years, despite significant growth in electricity demand. The returns consumers no longer necessarily bear the entire financial loss associated with a power plant that has, ex of major U.S. independent power producers (IPPs) from 1996 to 2000, we estimate a more structural model

California at Berkeley. University of

7

Uncertainty analysis  

SciTech Connect

An evaluation is made of the suitability of analytical and statistical sampling methods for making uncertainty analyses. The adjoint method is found to be well-suited for obtaining sensitivity coefficients for computer programs involving large numbers of equations and input parameters. For this purpose the Latin Hypercube Sampling method is found to be inferior to conventional experimental designs. The Latin hypercube method can be used to estimate output probability density functions, but requires supplementary rank transformations followed by stepwise regression to obtain uncertainty information on individual input parameters. A simple Cork and Bottle problem is used to illustrate the efficiency of the adjoint method relative to certain statistical sampling methods. For linear models of the form Ax=b it is shown that a complete adjoint sensitivity analysis can be made without formulating and solving the adjoint problem. This can be done either by using a special type of statistical sampling or by reformulating the primal problem and using suitable linear programming software.

Thomas, R.E.

1982-03-01T23:59:59.000Z

8

Environmental issues: still clouded in uncertainty  

SciTech Connect

The key environmental obstacle affecting oil shale development is uncertainty. Little is known with much degree of certainty about potential environmental consequences of oil shale mining or processing. Primary uncertainties include: environmental compliance costs and their effects on investment decisions/ reliability and acceptability of anticipated pollution control technologies/ and confusing, time consuming environmental regulatory framework. The availability of water supplies, protection of air and water quality, impacts on boom-towns, and spent shale disposal are other related issues. (2 photos)

Stanwood, R.M.

1981-01-01T23:59:59.000Z

9

The uncertainties in estimating measurement uncertainties  

SciTech Connect

All measurements include some error. Whether measurements are used for accountability, environmental programs or process support, they are of little value unless accompanied by an estimate of the measurements uncertainty. This fact is often overlooked by the individuals who need measurements to make decisions. This paper will discuss the concepts of measurement, measurements errors (accuracy or bias and precision or random error), physical and error models, measurement control programs, examples of measurement uncertainty, and uncertainty as related to measurement quality. Measurements are comparisons of unknowns to knowns, estimates of some true value plus uncertainty; and are no better than the standards to which they are compared. Direct comparisons of unknowns that match the composition of known standards will normally have small uncertainties. In the real world, measurements usually involve indirect comparisons of significantly different materials (e.g., measuring a physical property of a chemical element in a sample having a matrix that is significantly different from calibration standards matrix). Consequently, there are many sources of error involved in measurement processes that can affect the quality of a measurement and its associated uncertainty. How the uncertainty estimates are determined and what they mean is as important as the measurement. The process of calculating the uncertainty of a measurement itself has uncertainties that must be handled correctly. Examples of chemistry laboratory measurement will be reviewed in this report and recommendations made for improving measurement uncertainties.

Clark, J.P.; Shull, A.H.

1994-07-01T23:59:59.000Z

10

Uncertainties in Predicted Ozone Concentrations Due to Input Uncertainties for the UAM-V Photochemical Grid Model  

Science Conference Proceedings (OSTI)

Based on studies of ozone episodes in the eastern United States using the photochemical grid model, UAM-V, regulatory agencies have made decisions concerning emissions controls. This project analyzes effects of uncertainties in UAM-V input variables (emissions, initial and boundary conditions, meteorological variables, and chemical reactions) on uncertainties in UAM-V ozone predictions for the July 1995 episode.

2000-11-06T23:59:59.000Z

11

Regulatory Tools  

NLE Websites -- All DOE Office Websites (Extended Search)

Regulatory Tools Regulatory Tools Home CRA - 2004 Final Recertification Decision CRA Comments & Responses CCA - 1996 CRA CARDs & TSDs CCA CARDs & TSDs Regulatory Tools Title 40 CFR Part 191 Environmental Radiation Protection Standards for Management and Disposal of Spent Nuclear Fuel, High-Level and Transuranic Radioactive Wastes. Title 40 CFR Part 194 Criteria for the Certification and Re-Certification of the Waste Isolation Pilot Plant's Compliance With the 40 CFR Part 191 Disposal Regulations. Part I Title 40 CFR Part 194 Criteria for the Certification and Recertification of the Waste Isolation Pilot Plant's Compliance With the Disposal Regulations; Alternative Provisions; Proposed Rule. Friday August 9, 2002. Part II Title 40 CFR Part 194 Criteria for the Certification and Recertification of the Waste Isolation Pilot Plant's Compliance With the Disposal Regulations: Certification Decision; Final Rule. May 18, 1998. Part III

12

Regulatory overview  

Science Conference Proceedings (OSTI)

The end of 2012 and beginning of 2013 was a busy time for US regulators and standard-setters as two regulations and one consensus standard made the news. All have implications for oilseed processing and edible oil refining. Regulatory overview Public

13

Uncertainty quantification approaches for advanced reactor analyses.  

SciTech Connect

The original approach to nuclear reactor design or safety analyses was to make very conservative modeling assumptions so as to ensure meeting the required safety margins. Traditional regulation, as established by the U. S. Nuclear Regulatory Commission required conservatisms which have subsequently been shown to be excessive. The commission has therefore moved away from excessively conservative evaluations and has determined best-estimate calculations to be an acceptable alternative to conservative models, provided the best-estimate results are accompanied by an uncertainty evaluation which can demonstrate that, when a set of analysis cases which statistically account for uncertainties of all types are generated, there is a 95% probability that at least 95% of the cases meet the safety margins. To date, nearly all published work addressing uncertainty evaluations of nuclear power plant calculations has focused on light water reactors and on large-break loss-of-coolant accident (LBLOCA) analyses. However, there is nothing in the uncertainty evaluation methodologies that is limited to a specific type of reactor or to specific types of plant scenarios. These same methodologies can be equally well applied to analyses for high-temperature gas-cooled reactors and to liquid metal reactors, and they can be applied to steady-state calculations, operational transients, or severe accident scenarios. This report reviews and compares both statistical and deterministic uncertainty evaluation approaches. Recommendations are given for selection of an uncertainty methodology and for considerations to be factored into the process of evaluating uncertainties for advanced reactor best-estimate analyses.

Briggs, L. L.; Nuclear Engineering Division

2009-03-24T23:59:59.000Z

14

Basic definitions of uncertainty  

Science Conference Proceedings (OSTI)

... Glossary. The following definitions are given in the ISO Guide to the Expression of Uncertainty in Measurement. Many additional ...

15

Uncertainty Machine — User's Manual  

Science Conference Proceedings (OSTI)

... Figure 8: Resistance — Densities. ... Supplement 1 to the “Guide to the expression of uncertainty in measurement” — Propagation of distributions ...

2013-07-19T23:59:59.000Z

16

Sensitivity and Uncertainty Analysis  

Energy.gov (U.S. Department of Energy (DOE))

Summary Notes from 15 November 2007 Generic Technical Issue Discussion on Sensitivity and Uncertainty Analysis and Model Support

17

Uncertainties in Gapped Graphene  

E-Print Network (OSTI)

Motivated by graphene-based quantum computer we examine the time-dependence of the position-momentum and position-velocity uncertainties in the monolayer gapped graphene. The effect of the energy gap to the uncertainties is shown to appear via the Compton-like wavelength $\\lambda_c$. The uncertainties in the graphene are mainly contributed by two phenomena, spreading and zitterbewegung. While the former determines the uncertainties in the long-range of time, the latter gives the highly oscillation to the uncertainties in the short-range of time. The uncertainties in the graphene are compared with the corresponding values for the usual free Hamiltonian $\\hat{H}_{free} = (p_1^2 + p_2^2) / 2 M$. It is shown that the uncertainties can be under control within the quantum mechanical law if one can choose the gap parameter $\\lambda_c$ freely.

Eylee Jung; Kwang S. Kim; DaeKil Park

2011-07-27T23:59:59.000Z

18

Quantifying uncertainty from material inhomogeneity.  

SciTech Connect

Most engineering materials are inherently inhomogeneous in their processing, internal structure, properties, and performance. Their properties are therefore statistical rather than deterministic. These inhomogeneities manifest across multiple length and time scales, leading to variabilities, i.e. statistical distributions, that are necessary to accurately describe each stage in the process-structure-properties hierarchy, and are ultimately the primary source of uncertainty in performance of the material and component. When localized events are responsible for component failure, or when component dimensions are on the order of microstructural features, this uncertainty is particularly important. For ultra-high reliability applications, the uncertainty is compounded by a lack of data describing the extremely rare events. Hands-on testing alone cannot supply sufficient data for this purpose. To date, there is no robust or coherent method to quantify this uncertainty so that it can be used in a predictive manner at the component length scale. The research presented in this report begins to address this lack of capability through a systematic study of the effects of microstructure on the strain concentration at a hole. To achieve the strain concentration, small circular holes (approximately 100 {micro}m in diameter) were machined into brass tensile specimens using a femto-second laser. The brass was annealed at 450 C, 600 C, and 800 C to produce three hole-to-grain size ratios of approximately 7, 1, and 1/7. Electron backscatter diffraction experiments were used to guide the construction of digital microstructures for finite element simulations of uniaxial tension. Digital image correlation experiments were used to qualitatively validate the numerical simulations. The simulations were performed iteratively to generate statistics describing the distribution of plastic strain at the hole in varying microstructural environments. In both the experiments and simulations, the deformation behavior was found to depend strongly on the character of the nearby microstructure.

Battaile, Corbett Chandler; Emery, John M.; Brewer, Luke N.; Boyce, Brad Lee

2009-09-01T23:59:59.000Z

19

Your Mileage Will Still Vary  

NLE Websites -- All DOE Office Websites (Extended Search)

Mileage Will Still Vary Why Does Fuel Economy Vary? Video about EPA's New Fuel Economy Ratings Windows Media Video (11.1 MB) Quicktime Video (12.9 MB) Text Version EPA has improved...

20

Characteristic uncertainty relations  

E-Print Network (OSTI)

New uncertainty relations for n observables are established. The relations take the invariant form of inequalities between the characteristic coefficients of order r, r = 1,2,...,n, of the uncertainty matrix and the matrix of mean commutators of the observables. It is shown that the second and the third order characteristic inequalities for the three generators of SU(1,1) and SU(2) are minimized in the corresponding group-related coherent states with maximal symmetry.

D. A. Trifonov; S. G. Donev

1998-09-10T23:59:59.000Z

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


21

Uncertainty and calibration analysis  

SciTech Connect

All measurements contain some deviation from the true value which is being measured. In the common vernacular this deviation between the true value and the measured value is called an inaccuracy, an error, or a mistake. Since all measurements contain errors, it is necessary to accept that there is a limit to how accurate a measurement can be. The undertainty interval combined with the confidence level, is one measure of the accuracy for a measurement or value. Without a statement of uncertainty (or a similar parameter) it is not possible to evaluate if the accuracy of the measurement, or data, is appropriate. The preparation of technical reports, calibration evaluations, and design calculations should consider the accuracy of measurements and data being used. There are many methods to accomplish this. This report provides a consistent method for the handling of measurement tolerances, calibration evaluations and uncertainty calculations. The SRS Quality Assurance (QA) Program requires that the uncertainty of technical data and instrument calibrations be acknowledged and estimated. The QA Program makes some specific technical requirements related to the subject but does not provide a philosophy or method on how uncertainty should be estimated. This report was prepared to provide a technical basis to support the calculation of uncertainties and the calibration of measurement and test equipment for any activity within the Experimental Thermal-Hydraulics (ETH) Group. The methods proposed in this report provide a graded approach for estimating the uncertainty of measurements, data, and calibrations. The method is based on the national consensus standard, ANSI/ASME PTC 19.1.

Coutts, D.A.

1991-03-01T23:59:59.000Z

22

Guidelines for Managing Reactor Vessel Material Uncertainties: Part 1: General Approach Part 2: Implementation Guide  

Science Conference Proceedings (OSTI)

Uncertainties about reactor vessel material toughness properties can be a concern for utilities when characterizing vessel integrity. In addition, recent emphasis on variability in material chemistry and initial toughness properties has added to regulatory concerns. This two-part guidelines document provides a general approach (Part 1) for dealing with weld metal property variability and material uncertainties and demonstrates examples of different approaches (Part 2) for dealing with these uncertainties...

1997-04-30T23:59:59.000Z

23

Probabilistic accident consequence uncertainty analysis: Food chain uncertainty assessment. Volume 1: Main report  

Science Conference Proceedings (OSTI)

This volume is the first of a two-volume document that summarizes a joint project conducted by the US Nuclear Regulatory Commission and the European Commission to assess uncertainties in the MACCS and COSYMA probabilistic accident consequence codes. These codes were developed primarily for estimating the risks presented by nuclear reactors based on postulated frequencies and magnitudes of potential accidents. This document reports on an ongoing project to assess uncertainty in the MACCS and COSYMA calculations for the offsite consequences of radionuclide releases by hypothetical nuclear power plant accidents. A panel of sixteen experts was formed to compile credible and traceable uncertainty distributions for food chain variables that affect calculations of offsite consequences. The expert judgment elicitation procedure and its outcomes are described in these volumes. Other panels were formed to consider uncertainty in other aspects of the codes. Their results are described in companion reports. Volume 1 contains background information and a complete description of the joint consequence uncertainty study. Volume 2 contains appendices that include (1) a summary of the MACCS and COSYMA consequence codes, (2) the elicitation questionnaires and case structures for both panels, (3) the rationales and results for the panels on soil and plant transfer and animal transfer, (4) short biographies of the experts, and (5) the aggregated results of their responses.

Brown, J. [National Radiological Protection Board (United Kingdom); Goossens, L.H.J.; Kraan, B.C.P. [Delft Univ. of Technology (Netherlands)] [and others

1997-06-01T23:59:59.000Z

24

Estimating uncertainty of inference for validation  

SciTech Connect

We present a validation process based upon the concept that validation is an inference-making activity. This has always been true, but the association has not been as important before as it is now. Previously, theory had been confirmed by more data, and predictions were possible based on data. The process today is to infer from theory to code and from code to prediction, making the role of prediction somewhat automatic, and a machine function. Validation is defined as determining the degree to which a model and code is an accurate representation of experimental test data. Imbedded in validation is the intention to use the computer code to predict. To predict is to accept the conclusion that an observable final state will manifest; therefore, prediction is an inference whose goodness relies on the validity of the code. Quantifying the uncertainty of a prediction amounts to quantifying the uncertainty of validation, and this involves the characterization of uncertainties inherent in theory/models/codes and the corresponding data. An introduction to inference making and its associated uncertainty is provided as a foundation for the validation problem. A mathematical construction for estimating the uncertainty in the validation inference is then presented, including a possibility distribution constructed to represent the inference uncertainty for validation under uncertainty. The estimation of inference uncertainty for validation is illustrated using data and calculations from Inertial Confinement Fusion (ICF). The ICF measurements of neutron yield and ion temperature were obtained for direct-drive inertial fusion capsules at the Omega laser facility. The glass capsules, containing the fusion gas, were systematically selected with the intent of establishing a reproducible baseline of high-yield 10{sup 13}-10{sup 14} neutron output. The deuterium-tritium ratio in these experiments was varied to study its influence upon yield. This paper on validation inference is the first in a series of inference uncertainty estimations. While the methods demonstrated are primarily statistical, these do not preclude the use of nonprobabilistic methods for uncertainty characterization. The methods presented permit accurate determinations for validation and eventual prediction. It is a goal that these methods establish a standard against which best practice may evolve for determining degree of validation.

Booker, Jane M [Los Alamos National Laboratory; Langenbrunner, James R [Los Alamos National Laboratory; Hemez, Francois M [Los Alamos National Laboratory; Ross, Timothy J [UNM

2010-09-30T23:59:59.000Z

25

Numerical approach for quantification of epistemic uncertainty  

Science Conference Proceedings (OSTI)

In the field of uncertainty quantification, uncertainty in the governing equations may assume two forms: aleatory uncertainty and epistemic uncertainty. Aleatory uncertainty can be characterised by known probability distributions whilst epistemic uncertainty ... Keywords: Encapsulation problem, Epistemic uncertainty, Generalized polynomial chaos, Stochastic collocation, Uncertainty quantification

John Jakeman; Michael Eldred; Dongbin Xiu

2010-06-01T23:59:59.000Z

26

Topic: Regulatory & Policy Recommendations  

Science Conference Proceedings (OSTI)

... Regulatory & Policy Recommendations. The impact of regulations and policies on the manufacturing industry in areas such as tax, energy, trade ...

2013-11-19T23:59:59.000Z

27

Uncertainties in risk assessment at USDOE facilities  

Science Conference Proceedings (OSTI)

The United States Department of Energy (USDOE) has embarked on an ambitious program to remediate environmental contamination at its facilities. Decisions concerning cleanup goals, choices among cleanup technologies, and funding prioritization should be largely risk-based. Risk assessments will be used more extensively by the USDOE in the future. USDOE needs to develop and refine risk assessment methods and fund research to reduce major sources of uncertainty in risk assessments at USDOE facilities. The terms{open_quote} risk assessment{close_quote} and{open_quote} risk management{close_quote} are frequently confused. The National Research Council (1983) and the United States Environmental Protection Agency (USEPA, 1991a) described risk assessment as a scientific process that contributes to risk management. Risk assessment is the process of collecting, analyzing and integrating data and information to identify hazards, assess exposures and dose responses, and characterize risks. Risk characterization must include a clear presentation of {open_quotes}... the most significant data and uncertainties...{close_quotes} in an assessment. Significant data and uncertainties are {open_quotes}...those that define and explain the main risk conclusions{close_quotes}. Risk management integrates risk assessment information with other considerations, such as risk perceptions, socioeconomic and political factors, and statutes, to make and justify decisions. Risk assessments, as scientific processes, should be made independently of the other aspects of risk management (USEPA, 1991a), but current methods for assessing health risks are based on conservative regulatory principles, causing unnecessary public concern and misallocation of funds for remediation.

Hamilton, L.D.; Holtzman, S.; Meinhold, A.F.; Morris, S.C.; Rowe, M.D.

1994-01-01T23:59:59.000Z

28

Electoral Competition, Political Uncertainty and Policy Insulation  

E-Print Network (OSTI)

Uncertainty and Policy Insulation Horn, Murray. 1995. TheUncertainty and Policy Insulation United States Congress.UNCERTAINTY AND POLICY INSULATION Rui J. P. de Figueiredo,

de Figueiredo, Rui J. P. Jr.

2001-01-01T23:59:59.000Z

29

Cassini Spacecraft Uncertainty Analysis Data and Methodology Review and Update/Volume 1: Updated Parameter Uncertainty Models for the Consequence Analysis  

DOE Green Energy (OSTI)

Uncertainty distributions for specific parameters of the Cassini General Purpose Heat Source Radioisotope Thermoelectric Generator (GPHS-RTG) Final Safety Analysis Report consequence risk analysis were revised and updated. The revisions and updates were done for all consequence parameters for which relevant information exists from the joint project on Probabilistic Accident Consequence Uncertainty Analysis by the United States Nuclear Regulatory Commission and the Commission of European Communities.

WHEELER, TIMOTHY A.; WYSS, GREGORY D.; HARPER, FREDERICK T.

2000-11-01T23:59:59.000Z

30

Strategies for Application of Isotopic Uncertainties in Burnup Credit  

SciTech Connect

Uncertainties in the predicted isotopic concentrations in spent nuclear fuel represent one of the largest sources of overall uncertainty in criticality calculations that use burnup credit. The methods used to propagate the uncertainties in the calculated nuclide concentrations to the uncertainty in the predicted neutron multiplication factor (k{sub eff}) of the system can have a significant effect on the uncertainty in the safety margin in criticality calculations and ultimately affect the potential capacity of spent fuel transport and storage casks employing burnup credit. Methods that can provide a more accurate and realistic estimate of the uncertainty may enable increased spent fuel cask capacity and fewer casks needing to be transported, thereby reducing regulatory burden on licensee while maintaining safety for transporting spent fuel. This report surveys several different best-estimate strategies for considering the effects of nuclide uncertainties in burnup-credit analyses. The potential benefits of these strategies are illustrated for a prototypical burnup-credit cask design. The subcritical margin estimated using best-estimate methods is discussed in comparison to the margin estimated using conventional bounding methods of uncertainty propagation. To quantify the comparison, each of the strategies for estimating uncertainty has been performed using a common database of spent fuel isotopic assay measurements for pressurized-light-water reactor fuels and predicted nuclide concentrations obtained using the current version of the SCALE code system. The experimental database applied in this study has been significantly expanded to include new high-enrichment and high-burnup spent fuel assay data recently published for a wide range of important burnup-credit actinides and fission products. Expanded rare earth fission-product measurements performed at the Khlopin Radium Institute in Russia that contain the only known publicly-available measurement for {sup 103}Rh have also been included.

Gauld, I.C.

2002-12-23T23:59:59.000Z

31

Parametric Uncertainty Impacts on Option 2 Safety Significance Categorization  

Science Conference Proceedings (OSTI)

This report describes an assessment to determine the impact of parametric uncertainty on the safety significance categorization of structures, systems, and components (SSCs) using risk-importance measures. The study supports Risk-Informed Option 2, which allows elimination of special treatment requirements for low-risk-significant SSCs. The U.S. Nuclear Regulatory Commission (NRC) has proposed an Option 2 Rulemaking, 10 CFR 50.69. Industry, through the Nuclear Energy Institute (NEI) with EPRI technical s...

2003-06-30T23:59:59.000Z

32

Finite-time robust stochastic stability of uncertain stochastic delayed reaction-diffusion genetic regulatory networks  

Science Conference Proceedings (OSTI)

This paper is concerned with the problem of finite-time stability analysis for uncertain stochastic delayed reaction-diffusion genetic regulatory networks. The parameter uncertainties are assumed to be norm-bounded, and the time delays are assumed to ... Keywords: Finite-time stochastic stability, Genetic regulatory networks, Reaction-diffusion, Stochastic noise, Time delays

Jianping Zhou; Shengyuan Xu; Hao Shen

2011-10-01T23:59:59.000Z

33

Air pollution uncertainty exists in radon measurements  

SciTech Connect

This report discusses radon which is a colorless, odorless gas formed by the decay of radium and uranium that has been shown to cause lung cancer. Progress has been made in ensuring the accuracy of home radon measurements. According to this report, however, radon measurements are uncertain because the ability of the devices that measure radon and the companies analyzing the devices' readings varies and homeowners may not be following EPA's recommended testing procedures. Several possible causes for the uncertainty in radon measurements are cited.

1989-01-01T23:59:59.000Z

34

Nuclear Safety Regulatory Framework  

NLE Websites -- All DOE Office Websites (Extended Search)

Department of Energy Department of Energy Nuclear Safety Regulatory Framework DOE's Nuclear Safety Enabling Legislation Regulatory Enforcement & Oversight Regulatory Governance Atomic Energy Act 1946 Atomic Energy Act 1954 Energy Reorganization Act 1974 DOE Act 1977 Authority and responsibility to regulate nuclear safety at DOE facilities 10 CFR 830 10 CFR 835 10 CFR 820 Regulatory Implementation Nuclear Safety Radiological Safety Procedural Rules ISMS-QA; Operating Experience; Metrics and Analysis Cross Cutting DOE Directives & Manuals DOE Standards Central Technical Authorities (CTA) Office of Health, Safety, and Security (HSS) Line Management SSO/ FAC Reps 48 CFR 970 48 CFR 952 Federal Acquisition Regulations External Oversight *Defense Nuclear Facility

35

DSW REGULATORY AND RESTRUCTURING  

NLE Websites -- All DOE Office Websites (Extended Search)

Committee on Appropriations House Committee on Appropriations Photo of lineman repairing transmission lines in desert Western's Regulatory & Restructuring Project Managers Ron...

36

Other Regulatory Efforts  

Energy.gov (U.S. Department of Energy (DOE))

In addition to regulating international electricity trade, the Office of Electricity Delivery and Energy Reliability participates in other regulatory activities. These include:

37

Restrospective Regulatory Review  

Energy.gov (U.S. Department of Energy (DOE))

On January 18, 2011, President Obama issued Executive Order 13563, Improving Regulation and Regulatory Review, which directs federal agencies, among other things, to review existing regulations and...

38

FPCC Regulatory Barriers Submittal  

Energy.gov (U.S. Department of Energy (DOE))

The Federal Performance Contracting Coalition (FPCC) appreciates the opportunity to comment on reducing regulatory burdens on the Federal government, specifically as they pertain to federal energy...

39

Probabilistic accident consequence uncertainty analysis -- Uncertainty assessment for deposited material and external doses. Volume 1: Main report  

SciTech Connect

The development of two new probabilistic accident consequence codes, MACCS and COSYMA, was completed in 1990. These codes estimate the consequence from the accidental releases of radiological material from hypothesized accidents at nuclear installations. In 1991, the US Nuclear Regulatory Commission and the Commission of the European Communities began cosponsoring a joint uncertainty analysis of the two codes. The ultimate objective of this joint effort was to systematically develop credible and traceable uncertainty distributions for the respective code input variables. A formal expert judgment elicitation and evaluation process was identified as the best technology available for developing a library of uncertainty distributions for these consequence parameters. This report focuses on the results of the study to develop distribution for variables related to the MACCS and COSYMA deposited material and external dose models.

Goossens, L.H.J.; Kraan, B.C.P.; Cooke, R.M. [Delft Univ. of Technology (Netherlands); Boardman, J. [AEA Technology (United Kingdom); Jones, J.A. [National Radiological Protection Board (United Kingdom); Harper, F.T.; Young, M.L. [Sandia National Labs., Albuquerque, NM (United States); Hora, S.C. [Univ. of Hawaii, Hilo, HI (United States)

1997-12-01T23:59:59.000Z

40

Demand Uncertainty and Price Dispersion.  

E-Print Network (OSTI)

??Demand uncertainty has been recognized as one factor that may cause price dispersion in perfectly competitive markets with costly and perishable capacity. With the persistence… (more)

Li, Suxi

2007-01-01T23:59:59.000Z

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


41

Building Technologies Office: Regulatory Processes  

NLE Websites -- All DOE Office Websites (Extended Search)

Regulatory Processes to Regulatory Processes to someone by E-mail Share Building Technologies Office: Regulatory Processes on Facebook Tweet about Building Technologies Office: Regulatory Processes on Twitter Bookmark Building Technologies Office: Regulatory Processes on Google Bookmark Building Technologies Office: Regulatory Processes on Delicious Rank Building Technologies Office: Regulatory Processes on Digg Find More places to share Building Technologies Office: Regulatory Processes on AddThis.com... About History & Impacts Statutory Authorities & Rules Regulatory Processes Plans & Schedules Reports & Publications Standards & Test Procedures Implementation, Certification & Enforcement Rulemakings & Notices Further Guidance ENERGY STAR® Popular Links Success Stories

42

Probabilistic accident consequence uncertainty analysis -- Early health effects uncertainty assessment. Volume 2: Appendices  

Science Conference Proceedings (OSTI)

The development of two new probabilistic accident consequence codes, MACCS and COSYMA, was completed in 1990. These codes estimate the consequence from the accidental releases of radiological material from hypothesized accidents at nuclear installations. In 1991, the US Nuclear Regulatory Commission and the Commission of the European Communities began cosponsoring a joint uncertainty analysis of the two codes. The ultimate objective of this joint effort was to systematically develop credible and traceable uncertainty distributions for the respective code input variables. A formal expert judgment elicitation and evaluation process was identified as the best technology available for developing a library of uncertainty distributions for these consequence parameters. This report focuses on the results of the study to develop distribution for variables related to the MACCS and COSYMA early health effects models. This volume contains appendices that include (1) a summary of the MACCS and COSYMA consequence codes, (2) the elicitation questionnaires and case structures, (3) the rationales and results for the panel on early health effects, (4) short biographies of the experts, and (5) the aggregated results of their responses.

Haskin, F.E. [Univ. of New Mexico, Albuquerque, NM (United States); Harper, F.T. [Sandia National Labs., Albuquerque, NM (United States); Goossens, L.H.J.; Kraan, B.C.P. [Delft Univ. of Technology (Netherlands)

1997-12-01T23:59:59.000Z

43

Probabilistic accident consequence uncertainty analysis -- Uncertainty assessment for deposited material and external doses. Volume 2: Appendices  

SciTech Connect

The development of two new probabilistic accident consequence codes, MACCS and COSYMA, was completed in 1990. These codes estimate the consequence from the accidental releases of radiological material from hypothesized accidents at nuclear installations. In 1991, the US Nuclear Regulatory Commission and the Commission of the European Communities began cosponsoring a joint uncertainty analysis of the two codes. The ultimate objective of this joint effort was to systematically develop credible and traceable uncertainty distributions for the respective code input variables. A formal expert judgment elicitation and evaluation process was identified as the best technology available for developing a library of uncertainty distributions for these consequence parameters. This report focuses on the results of the study to develop distribution for variables related to the MACCS and COSYMA deposited material and external dose models. This volume contains appendices that include (1) a summary of the MACCS and COSYMA consequence codes, (2) the elicitation questionnaires and case structures, (3) the rationales and results for the panel on deposited material and external doses, (4) short biographies of the experts, and (5) the aggregated results of their responses.

Goossens, L.H.J.; Kraan, B.C.P.; Cooke, R.M. [Delft Univ. of Technology (Netherlands); Boardman, J. [AEA Technology (United Kingdom); Jones, J.A. [National Radiological Protection Board (United Kingdom); Harper, F.T.; Young, M.L. [Sandia National Labs., Albuquerque, NM (United States); Hora, S.C. [Univ. of Hawaii, Hilo, HI (United States)

1997-12-01T23:59:59.000Z

44

Probabilistic accident consequence uncertainty analysis -- Uncertainty assessment for internal dosimetry. Volume 2: Appendices  

Science Conference Proceedings (OSTI)

The development of two new probabilistic accident consequence codes, MACCS and COSYMA, was completed in 1990. These codes estimate the consequence from the accidental releases of radiological material from hypothesized accidents at nuclear installations. In 1991, the US Nuclear Regulatory Commission and the Commission of the European Communities began cosponsoring a joint uncertainty analysis of the two codes. The ultimate objective of this joint effort was to systematically develop credible and traceable uncertainty distributions for the respective code input variables. A formal expert judgment elicitation and evaluation process was identified as the best technology available for developing a library of uncertainty distributions for these consequence parameters. This report focuses on the results of the study to develop distribution for variables related to the MACCS and COSYMA internal dosimetry models. This volume contains appendices that include (1) a summary of the MACCS and COSYMA consequence codes, (2) the elicitation questionnaires and case structures, (3) the rationales and results for the panel on internal dosimetry, (4) short biographies of the experts, and (5) the aggregated results of their responses.

Goossens, L.H.J.; Kraan, B.C.P.; Cooke, R.M. [Delft Univ. of Technology (Netherlands); Harrison, J.D. [National Radiological Protection Board (United Kingdom); Harper, F.T. [Sandia National Labs., Albuquerque, NM (United States); Hora, S.C. [Univ. of Hawaii, Hilo, HI (United States)

1998-04-01T23:59:59.000Z

45

Phenylpropanoid related regulatory protein-regulatory region associations  

SciTech Connect

Materials and methods for identifying lignin regulatory region-regulatory protein associations are disclosed. Materials and methods for modulating lignin accumulation are also disclosed.

Apuya, Nestor (Culver City, CA); Bobzin, Steven Craig (Malibu, CA); Park, Joon-Hyun (Oak Park, CA); Doukhanina, Elena (Newbury Park, CA)

2012-01-03T23:59:59.000Z

46

Uncertainty in Integrated Assessment Scenarios  

SciTech Connect

The determination of climate policy is a decision under uncertainty. The uncertainty in future climate change impacts is large, as is the uncertainty in the costs of potential policies. Rational and economically efficient policy choices will therefore seek to balance the expected marginal costs with the expected marginal benefits. This approach requires that the risks of future climate change be assessed. The decision process need not be formal or quantitative for descriptions of the risks to be useful. Whatever the decision procedure, a useful starting point is to have as accurate a description of climate risks as possible. Given the goal of describing uncertainty in future climate change, we need to characterize the uncertainty in the main causes of uncertainty in climate impacts. One of the major drivers of uncertainty in future climate change is the uncertainty in future emissions, both of greenhouse gases and other radiatively important species such as sulfur dioxide. In turn, the drivers of uncertainty in emissions are uncertainties in the determinants of the rate of economic growth and in the technologies of production and how those technologies will change over time. This project uses historical experience and observations from a large number of countries to construct statistical descriptions of variability and correlation in labor productivity growth and in AEEI. The observed variability then provides a basis for constructing probability distributions for these drivers. The variance of uncertainty in growth rates can be further modified by expert judgment if it is believed that future variability will differ from the past. But often, expert judgment is more readily applied to projected median or expected paths through time. Analysis of past variance and covariance provides initial assumptions about future uncertainty for quantities that are less intuitive and difficult for experts to estimate, and these variances can be normalized and then applied to mean trends from a model for uncertainty projections. The probability distributions of these critical model drivers, and the resulting uncertainty in projections from a range of models, can provide the basis of future emission scenario set designs.

Mort Webster

2005-10-17T23:59:59.000Z

47

Regulatory guidance document  

SciTech Connect

The Office of Civilian Radioactive Waste Management (OCRWM) Program Management System Manual requires preparation of the OCRWM Regulatory Guidance Document (RGD) that addresses licensing, environmental compliance, and safety and health compliance. The document provides: regulatory compliance policy; guidance to OCRWM organizational elements to ensure a consistent approach when complying with regulatory requirements; strategies to achieve policy objectives; organizational responsibilities for regulatory compliance; guidance with regard to Program compliance oversight; and guidance on the contents of a project-level Regulatory Compliance Plan. The scope of the RGD includes site suitability evaluation, licensing, environmental compliance, and safety and health compliance, in accordance with the direction provided by Section 4.6.3 of the PMS Manual. Site suitability evaluation and regulatory compliance during site characterization are significant activities, particularly with regard to the YW MSA. OCRWM`s evaluation of whether the Yucca Mountain site is suitable for repository development must precede its submittal of a license application to the Nuclear Regulatory Commission (NRC). Accordingly, site suitability evaluation is discussed in Chapter 4, and the general statements of policy regarding site suitability evaluation are discussed in Section 2.1. Although much of the data and analyses may initially be similar, the licensing process is discussed separately in Chapter 5. Environmental compliance is discussed in Chapter 6. Safety and Health compliance is discussed in Chapter 7.

NONE

1994-05-01T23:59:59.000Z

48

Probabilistic accident consequence uncertainty analysis: Dispersion and deposition uncertainty assessment, main report  

SciTech Connect

The development of two new probabilistic accident consequence codes, MACCS and COSYMA, was completed in 1990. These codes estimate the risks presented by nuclear installations based on postulated frequencies and magnitudes of potential accidents. In 1991, the US Nuclear Regulatory Commission (NRC) and the Commission of the European Communities (CEC) began a joint uncertainty analysis of the two codes. The ultimate objective of the joint effort was to develop credible and traceable uncertainty distributions for the input variables of the codes. Expert elicitation was identified as the best technology available for developing a library of uncertainty distributions for the selected consequence parameters. The study was formulated jointly and was limited to the current code models and to physical quantities that could be measured in experiments. Experts developed their distributions independently. To validate the distributions generated for the wet deposition input variables, samples were taken from these distributions and propagated through the wet deposition code model. Resulting distributions closely replicated the aggregated elicited wet deposition distributions. To validate the distributions generated for the dispersion code input variables, samples from the distributions and propagated through the Gaussian plume model (GPM) implemented in the MACCS and COSYMA codes. Project teams from the NRC and CEC cooperated successfully to develop and implement a unified process for the elaboration of uncertainty distributions on consequence code input parameters. Formal expert judgment elicitation proved valuable for synthesizing the best available information. Distributions on measurable atmospheric dispersion and deposition parameters were successfully elicited from experts involved in the many phenomenological areas of consequence analysis. This volume is the first of a three-volume document describing the project.

Harper, F.T.; Young, M.L.; Miller, L.A. [Sandia National Labs., Albuquerque, NM (United States); Hora, S.C. [Univ. of Hawaii, Hilo, HI (United States); Lui, C.H. [Nuclear Regulatory Commission, Washington, DC (United States); Goossens, L.H.J.; Cooke, R.M. [Delft Univ. of Technology (Netherlands); Paesler-Sauer, J. [Research Center, Karlsruhe (Germany); Helton, J.C. [and others

1995-01-01T23:59:59.000Z

49

NUCLEAR REGULATORY COMMISSION  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

December 21, 1999 (Volume 64, Number 244)] December 21, 1999 (Volume 64, Number 244)] [Proposed Rules] [Page 71331-71333] From the Federal Register Online via GPO Access [wais.access.gpo.gov] [DOCID:fr21de99-21] ======================================================================= ----------------------------------------------------------------------- NUCLEAR REGULATORY COMMISSION 10 CFR Parts 71 and 73 RIN 3150-AG41 Advance Notification to Native American Tribes of Transportation of Certain Types of Nuclear Waste AGENCY: Nuclear Regulatory Commission. ACTION: Advance notice of proposed rulemaking. ----------------------------------------------------------------------- SUMMARY: The Nuclear Regulatory Commission (NRC) is considering an amendment to its regulations that would require NRC licensees to notify

50

OpenEI Community - regulatory  

Open Energy Info (EERE)

Geothermal Regulatory Roadmap featured on NREL Now http:en.openei.orgcommunitybloggeothermal-regulatory-roadmap-featured-nrel-now

51

Building Technologies Office: Regulatory Processes  

NLE Websites -- All DOE Office Websites (Extended Search)

Processes on Twitter Bookmark Building Technologies Office: Regulatory Processes on Google Bookmark Building Technologies Office: Regulatory Processes on Delicious Rank Building...

52

Autonomous Exploration: Driven by Uncertainty  

E-Print Network (OSTI)

Autonomous Exploration: Driven by Uncertainty Peter Whaite and Frank P. Ferrie TR-CIM-93-17 1993-6319 Telex: 05 268510 FAX: 514 398-7348 Email: cim@cim.mcgill.ca #12;Autonomous Exploration: Driven

Dudek, Gregory

53

Bayesian calibration Uncertainty Sensitivity analysis  

E-Print Network (OSTI)

available at www.sciencedirect.com journal homepage: www.elsevier.com/locate/ecolmodel Sensitivity and uncertainty analysis from a coupled 3-PG and soil organic matter decomposition model

Monte Carlo; Markov Chain

2008-01-01T23:59:59.000Z

54

Uncertainty in Air Quality Modeling  

Science Conference Proceedings (OSTI)

Under the direction of the AMS Steering Committee for the EPA Cooperative Agreement on Air Quality Modeling, a small group of scientists convened to consider the question of uncertainty in air quality modeling. Because the group was particularly ...

Douglas G. Fox

1984-01-01T23:59:59.000Z

55

Uncertainty in emissions projections for climate models  

E-Print Network (OSTI)

Future global climate projections are subject to large uncertainties. Major sources of this uncertainty are projections of anthropogenic emissions. We evaluate the uncertainty in future anthropogenic emissions using a ...

Webster, Mort David.; Babiker, Mustafa H.M.; Mayer, Monika.; Reilly, John M.; Harnisch, Jochen.; Hyman, Robert C.; Sarofim, Marcus C.; Wang, Chien.

56

Harvesting a renewable resource under uncertainty  

E-Print Network (OSTI)

Consider a valuable renewable resource whose biomass X2003. “Harvesting a renewable resource under uncertainty,”Harvesting a Renewable Resource under Uncertainty 1 (with

Saphores, Jean-Daniel M

2003-01-01T23:59:59.000Z

57

RUMINATIONS ON NDA MEASUREMENT UNCERTAINTY COMPARED TO DA UNCERTAINTY  

Science Conference Proceedings (OSTI)

It is difficult to overestimate the importance that physical measurements performed with nondestructive assay instruments play throughout the nuclear fuel cycle. They underpin decision making in many areas and support: criticality safety, radiation protection, process control, safeguards, facility compliance, and waste measurements. No physical measurement is complete or indeed meaningful, without a defensible and appropriate accompanying statement of uncertainties and how they combine to define the confidence in the results. The uncertainty budget should also be broken down in sufficient detail suitable for subsequent uses to which the nondestructive assay (NDA) results will be applied. Creating an uncertainty budget and estimating the total measurement uncertainty can often be an involved process, especially for non routine situations. This is because data interpretation often involves complex algorithms and logic combined in a highly intertwined way. The methods often call on a multitude of input data subject to human oversight. These characteristics can be confusing and pose a barrier to developing and understanding between experts and data consumers. ASTM subcommittee C26-10 recognized this problem in the context of how to summarize and express precision and bias performance across the range of standards and guides it maintains. In order to create a unified approach consistent with modern practice and embracing the continuous improvement philosophy a consensus arose to prepare a procedure covering the estimation and reporting of uncertainties in non destructive assay of nuclear materials. This paper outlines the needs analysis, objectives and on-going development efforts. In addition to emphasizing some of the unique challenges and opportunities facing the NDA community we hope this article will encourage dialog and sharing of best practice and furthermore motivate developers to revisit the treatment of measurement uncertainty.

Salaymeh, S.; Ashley, W.; Jeffcoat, R.

2010-06-17T23:59:59.000Z

58

Light-Heavy Price Difference Varies  

U.S. Energy Information Administration (EIA)

Light-Heavy Price Difference Varies ; Function of Crude Market Factors ; Function of Conversion Capacity ; Function of Product Market Factors

59

EPAct Transportation Regulatory Activities: Contacts for EPAct  

NLE Websites -- All DOE Office Websites (Extended Search)

Contacts Contacts for EPAct Transportation Regulatory Activities to someone by E-mail Share EPAct Transportation Regulatory Activities: Contacts for EPAct Transportation Regulatory Activities on Facebook Tweet about EPAct Transportation Regulatory Activities: Contacts for EPAct Transportation Regulatory Activities on Twitter Bookmark EPAct Transportation Regulatory Activities: Contacts for EPAct Transportation Regulatory Activities on Google Bookmark EPAct Transportation Regulatory Activities: Contacts for EPAct Transportation Regulatory Activities on Delicious Rank EPAct Transportation Regulatory Activities: Contacts for EPAct Transportation Regulatory Activities on Digg Find More places to share EPAct Transportation Regulatory Activities: Contacts for EPAct Transportation Regulatory Activities on

60

Nuclear Regulatory Commission Regulatory and Licensing Matters | Department  

NLE Websites -- All DOE Office Websites (Extended Search)

Regulatory Commission Regulatory and Licensing Matters Regulatory Commission Regulatory and Licensing Matters Nuclear Regulatory Commission Regulatory and Licensing Matters GC-52 provides legal advice to DOE regarding Nuclear Regulatory Commission (NRC) regulatory and licensing matters of interest to DOE, either as an NRC license applicant or in connection with related authorities and responsibilities of DOE and NRC on nuclear material, nuclear waste, and nuclear nonproliferation matters. GC-52 attorneys provide advice and support on a variety of NRC matters including regulation and licensing of DOE independent spent fuel storage facilities (ISFSIs) and a mixed-oxide fuel fabrication facility, consultation with NRC on certain DOE waste determinations, and imports and exports of nuclear materials and radioactive sealed sources.

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


61

Environmental and regulatory aspects of compressed-air energy storage  

DOE Green Energy (OSTI)

The effects of fuel regulations, environmental protection laws, the National Environmental Policy Act, underground injection regulations, and state regulations on the development of compressed air storage systems and power plants are discussed. It is concluded that environmental regulatory concerns of conventional energy technologies are often different from those associated with new technologies such as compressed air energy storage (CAES). Confusion and uncertainty often results when the current environmental regulatory system is applied to new technologies. Evolution of the regulatory system must accompany and rapidly accommodate technological development if the benefits of such development are to be fully realized in a timely manner. Those responsible for technological development in the energy field must be aware of these disparities and conduct their efforts accordingly.

Beckwith, M.A.; Mathur, J.

1981-01-01T23:59:59.000Z

62

regulatory | OpenEI Community  

Open Energy Info (EERE)

regulatory Home Graham7781's picture Submitted by Graham7781(1992) Super contributor 5 August, 2013 - 14:18 Geothermal Regulatory Roadmap featured on NREL Now geothermal NREL...

63

NREL: Regulatory Support - Key Activities  

NLE Websites -- All DOE Office Websites (Extended Search)

The Regulatory Support team assists the U.S. Department of Energy by providing regulatory information related to the Energy Policy Act of 1992 and other legislation to help build...

64

Advanced Nuclear Technology: Regulatory Performance Requirements for Safety-Related Instrumentation, Revision 1  

Science Conference Proceedings (OSTI)

This report proposes an acceptable methodology to apply to safety-related instrumentation to demonstrate 95% probability and 95% confidence (95/95) uncertainties in support of the requirements of Nuclear Regulatory Commission Regulatory Guide (RG) 1.105 Revision 3. This methodology should serve as a means to specify testing and analysis requirements to instrumentation manufacturers and suppliers for their use in meeting the RG 1.105 Revision 3 95% probability and 95% confidence requirements. A ...

2013-08-07T23:59:59.000Z

65

USNRC REGULATORY GUIDES  

E-Print Network (OSTI)

Regulatory Guides are issued to describe and make available to the public methods acceptable to the NRC staff of implementing specific parts of the Commission's regulations, to delineate tech niques used by the staff in evaluating specific problems or postu lated accidents or to provide guidance to applicants. Regulatory Guides are not substitutes for regulations, and compliance with them is not required. Methods and solutions different from those set out in the guides will be acceptable If they provide a basis for the findings requisite to the Issuance or continuance of a permit or license by the Commission. This guide was issued after consideration of comments received from the public. Comments and suggestions for improvements in these guides are encouraged at all times, and guides will be revised, as appropriate, to accommodate comments and to reflect new Informa tion or experience. Comments should be sent to the Secretary of the Commission,

unknown authors

1982-01-01T23:59:59.000Z

66

Experimental uncertainty estimation and statistics for data having interval uncertainty.  

SciTech Connect

This report addresses the characterization of measurements that include epistemic uncertainties in the form of intervals. It reviews the application of basic descriptive statistics to data sets which contain intervals rather than exclusively point estimates. It describes algorithms to compute various means, the median and other percentiles, variance, interquartile range, moments, confidence limits, and other important statistics and summarizes the computability of these statistics as a function of sample size and characteristics of the intervals in the data (degree of overlap, size and regularity of widths, etc.). It also reviews the prospects for analyzing such data sets with the methods of inferential statistics such as outlier detection and regressions. The report explores the tradeoff between measurement precision and sample size in statistical results that are sensitive to both. It also argues that an approach based on interval statistics could be a reasonable alternative to current standard methods for evaluating, expressing and propagating measurement uncertainties.

Kreinovich, Vladik (Applied Biomathematics, Setauket, New York); Oberkampf, William Louis (Applied Biomathematics, Setauket, New York); Ginzburg, Lev (Applied Biomathematics, Setauket, New York); Ferson, Scott (Applied Biomathematics, Setauket, New York); Hajagos, Janos (Applied Biomathematics, Setauket, New York)

2007-05-01T23:59:59.000Z

67

Fractal analysis of time varying data  

DOE Patents (OSTI)

Characteristics of time varying data, such as an electrical signal, are analyzed by converting the data from a temporal domain into a spatial domain pattern. Fractal analysis is performed on the spatial domain pattern, thereby producing a fractal dimension D.sub.F. The fractal dimension indicates the regularity of the time varying data.

Vo-Dinh, Tuan (Knoxville, TN); Sadana, Ajit (Oxford, MS)

2002-01-01T23:59:59.000Z

68

Quantifying Uncertainty in Epidemiological Models  

SciTech Connect

Modern epidemiology has made use of a number of mathematical models, including ordinary differential equation (ODE) based models and agent based models (ABMs) to describe the dynamics of how a disease may spread within a population and enable the rational design of strategies for intervention that effectively contain the spread of the disease. Although such predictions are of fundamental importance in preventing the next global pandemic, there is a significant gap in trusting the outcomes/predictions solely based on such models. Hence, there is a need to develop approaches such that mathematical models can be calibrated against historical data. In addition, there is a need to develop rigorous uncertainty quantification approaches that can provide insights into when a model will fail and characterize the confidence in the (possibly multiple) model outcomes/predictions, when such retrospective analysis cannot be performed. In this paper, we outline an approach to develop uncertainty quantification approaches for epidemiological models using formal methods and model checking. By specifying the outcomes expected from a model in a suitable spatio-temporal logic, we use probabilistic model checking methods to quantify the probability with which the epidemiological model satisfies the specification. We argue that statistical model checking methods can solve the uncertainty quantification problem for complex epidemiological models.

Ramanathan, Arvind [ORNL; Jha, Sumit Kumar [University of Central Florida

2012-01-01T23:59:59.000Z

69

Multidelity approaches for design under uncertainty  

E-Print Network (OSTI)

Uncertainties are present in many engineering applications and it is important to account for their effects during engineering design to achieve robust and reliable systems. One approach is to represent uncertainties as ...

Ng, Leo Wai-Tsun

2013-01-01T23:59:59.000Z

70

Optimization under uncertainty in radiation therapy  

E-Print Network (OSTI)

In the context of patient care for life-threatening illnesses, the presence of uncertainty may compromise the quality of a treatment. In this thesis, we investigate robust approaches to managing uncertainty in radiation ...

Chan, Timothy Ching-Yee

2007-01-01T23:59:59.000Z

71

Incorporation of parametric uncertainty into complex kinetic mechanisms: Application to hydrogen oxidation in supercritical water  

SciTech Connect

In this study, uncertainty analysis is applied to a supercritical water hydrogen oxidation mechanism to determine the effect of uncertainties in reaction rate constants and species thermochemistry on predicted species concentrations. Forward rate constants and species thermochemistry are assumed to be the sole contributors to uncertainty in the reaction model with all other model parameters and inputs treated as deterministic quantities. Uncertainty propagation is performed using traditional Monte Carlo (MC) simulation and a new, more computationally efficient, probabilistic collocation method called the Deterministic Equivalent Modeling Method (DEMM). The results of both analyses show that there is considerable uncertainty in all predicted species concentrations. The predicted H{sub 2} and O{sub 2} concentrations vary {+-}70% from their median values. Similarly, the HO{sub 2} concentration ranges from +90 to {minus}70% of its median, while the H{sub 2}O{sub 2} concentration varies by +180 to {minus}80%. In addition, the DEMM methodology identified two key model parameters, the standard-state heat of formation of HO{sub 2} radical and the forward rate constant for H{sub 2}O{sub 2} dissociation, as the largest contributors to the uncertainty in the predicted hydrogen and oxygen species concentrations. The analyses further show that the change in model predictions due to the inclusion of real-gas effects, which are potentially important for SCWO process modeling, is small relative to the uncertainty introduced by the model parameters themselves.

Phenix, B.D.; Dinaro, J.L.; Tatang, M.A.; Tester, J.W.; Howard, J.B.; McRae, G.J. [Massachusetts Inst. of Tech., Cambridge, MA (United States). Dept. of Chemical Engineering and Energy Lab.

1998-01-01T23:59:59.000Z

72

Reliable water supply system design under uncertainty  

Science Conference Proceedings (OSTI)

Given the natural variability and uncertainties in long-term predictions, reliability is a critical design factor for water supply systems. However, the large scale of the problem and the correlated nature of the involved uncertainties result in models ... Keywords: Data uncertainty, Robust optimization, Spatially correlated data, Water supply system

G. Chung; K. Lansey; G. Bayraksan

2009-04-01T23:59:59.000Z

73

Quantum Mechanics and the Generalized Uncertainty Principle  

E-Print Network (OSTI)

The generalized uncertainty principle has been described as a general consequence of incorporating a minimal length from a theory of quantum gravity. We consider a simple quantum mechanical model where the operator corresponding to position has discrete eigenvalues and show how the generalized uncertainty principle results for minimum uncertainty wave packets.

Jang Young Bang; Micheal S. Berger

2006-10-11T23:59:59.000Z

74

Uncertainty Assessments in Severe Nuclear Accident Scenarios  

Science Conference Proceedings (OSTI)

Managing uncertainties in industrial systems is a daily challenge to ensure improved design, robust operation, accountable performance and responsive risk control. This paper aims to illustrate the different depth analyses that the uncertainty software ... Keywords: Monte Carlo simulation, nuclear power plant, sensitivity analysis, severe accident, uncertainty

Bertrand Iooss; Fabrice Gaudier; Michel Marques; Bertrand Spindler; Bruno Tourniaire

2009-09-01T23:59:59.000Z

75

Building 9213 ? A long and varied history  

NLE Websites -- All DOE Office Websites (Extended Search)

213 - A long and varied history The series on the Training and Technology program at Y-12 has been completed, and I certainly do appreciate all the input received on that historic...

76

Robust Estimation of Optical Phase Varying as a Continuous Resonant Process  

E-Print Network (OSTI)

It is well-known that adaptive homodyne estimation of continuously varying optical phase provides superior accuracy in the phase estimate as compared to adaptive or non-adaptive static estimation. However, most phase estimation schemes rely on precise knowledge of the underlying parameters of the system under measurement, and performance deteriorates significantly with changes in these parameters; hence it is desired to develop robust estimation techniques immune to such uncertainties. In related works, we have already shown how adaptive homodyne estimation can be made robust to uncertainty in an underlying parameter of the phase varying as a simplistic Ornstein-Uhlenbeck stochastic noise process. Here, we demonstrate robust phase estimation for a more complicated resonant noise process using a guaranteed cost robust filter.

Shibdas Roy; Ian R. Petersen; Elanor H. Huntington

2013-03-01T23:59:59.000Z

77

Reduction in maximum time uncertainty of paired time signals  

DOE Patents (OSTI)

Reduction in the maximum time uncertainty (t/sub max/ - t/sub min/) of a series of paired time signals t/sub 1/ and t/sub 2/ varying between two input terminals and representative of a series of single events where t/sub 1/ less than or equal to t/sub 2/ and t/sub 1/ + t/sub 2/ equals a constant, is carried out with a circuit utilizing a combination of OR and AND gates as signal selecting means and one or more time delays to increase the minimum value (t/sub min/) of the first signal t/sub 1/ closer to t/sub max/ and thereby reduce the difference. The circuit may utilize a plurality of stages to reduce the uncertainty by factors of 20 to 800.

Theodosiou, G.E.; Dawson, J.W.

1981-02-11T23:59:59.000Z

78

Uncertainties in forecasting future climate  

SciTech Connect

The increasing atmospheric concentrations of carbon dioxide, methane, chlorofluorocarbons, and other trace gases (collectively, greenhouse gases) pose a three-part challenge: (1) What the changes to atmospheric composition and the climate system will be; (2) What impacts (both detrimental and beneficial) these changes will induce on the biosphere and natural and societal resources; and (3) What the appropriate response, if any, might be when considering the changes themselves, the resulting impacts, and the benefits and other impacts of the activities generating the emissions. This brief summary will address only areas of agreement and areas of uncertainty related to the first challenge.

MacCracken, M.C.

1990-11-01T23:59:59.000Z

79

Essays on pricing under uncertainty  

E-Print Network (OSTI)

This dissertation analyzes pricing under uncertainty focusing on the U.S. airline industry. It sets to test theories of price dispersion driven by uncertainty in the demand by taking advantage of very detailed information about the dynamics of airline prices and inventory levels as the flight date approaches. Such detailed information about inventories at a ticket level to analyze airline pricing has been used previously by the author to show the importance of capacity constraints in airline pricing. This dissertation proposes and implements many new ideas to analyze airline pricing. Among the most important are: (1) It uses information about inventories at a ticket level. (2) It is the first to note that fare changes can be explained by adding dummy variables representing ticket characteristics. Therefore, the load factor at a ticket level will lose its explanatory power on fares if all ticket characteristics are included in a pricing equation. (3) It is the first to propose and implement a measure of Expected Load Factor as a tool to identify which flights are peak and which ones are not. (4) It introduces a novel idea of comparing actual sales with average sales at various points prior departure. Using these deviations of actual sales from sales under average conditions, it presents is the first study to show empirical evidence of peak load pricing in airlines. (5) It controls for potential endogeneity of sales using dynamic panels. The first essay tests the empirical importance of theories that explain price dispersion under costly capacity and demand uncertainty. The essay calculates a measure of an Expected Load Factor, that is used to calibrate the distribution of demand uncertainty and to identify which flights are peak and which ones are off-peak. It shows that different prices can be explained by the different selling probabilities. The second essay is the first study to provide formal evidence of stochastic peak-load pricing in airlines. It shows that airlines learn about the demand and respond to early sales setting higher prices when expected demand is high and more likely to exceed capacity.

Escobari Urday, Diego Alfonso

2008-05-01T23:59:59.000Z

80

Building Technologies Office: Regulatory Processes  

NLE Websites -- All DOE Office Websites (Extended Search)

Regulatory Processes Beginning with the Energy Policy and Conservation Act of 1975, Congress has enacted a series of laws establishing federal appliance and equipment standards and...

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


81

Probabilistic accident consequence uncertainty analysis: Dispersion and deposition uncertainty assessment. Volume 3, Appendices C, D, E, F, and G  

SciTech Connect

The development of two new probabilistic accident consequence codes, MACCS and COSYMA, completed in 1990, estimate the risks presented by nuclear installations based on postulated frequencies and magnitudes of potential accidents. In 1991, the US Nuclear Regulatory Commission (NRC) and the Commission of the European Communities (CEC) began a joint uncertainty analysis of the two codes. The objective was to develop credible and traceable uncertainty distributions for the input variables of the codes. Expert elicitation, developed independently, was identified as the best technology available for developing a library of uncertainty distributions for the selected consequence parameters. The study was formulated jointly and was limited to the current code models and to physical quantities that could be measured in experiments. To validate the distributions generated for the wet deposition input variables, samples were taken from these distributions and propagated through the wet deposition code model along with the Gaussian plume model (GPM) implemented in the MACCS and COSYMA codes. Resulting distributions closely replicated the aggregated elicited wet deposition distributions. Project teams from the NRC and CEC cooperated successfully to develop and implement a unified process for the elaboration of uncertainty distributions on consequence code input parameters. Formal expert judgment elicitation proved valuable for synthesizing the best available information. Distributions on measurable atmospheric dispersion and deposition parameters were successfully elicited from experts involved in the many phenomenological areas of consequence analysis. This volume is the third of a three-volume document describing the project and contains descriptions of the probability assessment principles; the expert identification and selection process; the weighting methods used; the inverse modeling methods; case structures; and summaries of the consequence codes.

Harper, F.T.; Young, M.L.; Miller, L.A. [Sandia National Labs., Albuquerque, NM (United States)] [and others

1995-01-01T23:59:59.000Z

82

A method to estimate the effect of deformable image registration uncertainties on daily dose mapping  

Science Conference Proceedings (OSTI)

Purpose: To develop a statistical sampling procedure for spatially-correlated uncertainties in deformable image registration and then use it to demonstrate their effect on daily dose mapping. Methods: Sequential daily CT studies are acquired to map anatomical variations prior to fractionated external beam radiotherapy. The CTs are deformably registered to the planning CT to obtain displacement vector fields (DVFs). The DVFs are used to accumulate the dose delivered each day onto the planning CT. Each DVF has spatially-correlated uncertainties associated with it. Principal components analysis (PCA) is applied to measured DVF error maps to produce decorrelated principal component modes of the errors. The modes are sampled independently and reconstructed to produce synthetic registration error maps. The synthetic error maps are convolved with dose mapped via deformable registration to model the resulting uncertainty in the dose mapping. The results are compared to the dose mapping uncertainty that would result from uncorrelated DVF errors that vary randomly from voxel to voxel. Results: The error sampling method is shown to produce synthetic DVF error maps that are statistically indistinguishable from the observed error maps. Spatially-correlated DVF uncertainties modeled by our procedure produce patterns of dose mapping error that are different from that due to randomly distributed uncertainties. Conclusions: Deformable image registration uncertainties have complex spatial distributions. The authors have developed and tested a method to decorrelate the spatial uncertainties and make statistical samples of highly correlated error maps. The sample error maps can be used to investigate the effect of DVF uncertainties on daily dose mapping via deformable image registration. An initial demonstration of this methodology shows that dose mapping uncertainties can be sensitive to spatial patterns in the DVF uncertainties.

Murphy, Martin J.; Salguero, Francisco J.; Siebers, Jeffrey V.; Staub, David; Vaman, Constantin [Department of Radiation Oncology, Virginia Commonwealth University, Richmond Virginia 23298 (United States)

2012-02-15T23:59:59.000Z

83

Solar mass-varying neutrino oscillations  

E-Print Network (OSTI)

We propose that the solar neutrino deficit may be due to oscillations of mass-varying neutrinos (MaVaNs). This scenario elucidates solar neutrino data beautifully while remaining comfortably compatible with atmospheric neutrino and K2K data and with reactor antineutrino data at short and long baselines (from CHOOZ and KamLAND). We find that the survival probability of solar MaVaNs is independent of how the suppression of neutrino mass caused by the acceleron-matter couplings varies with density. Measurements of MeV and lower energy solar neutrinos will provide a rigorous test of the idea.

V. Barger; Patrick Huber; Danny Marfatia

2005-02-21T23:59:59.000Z

84

Quantifying the uncertainty of synchrotron-based lattice strain measurements  

Science Conference Proceedings (OSTI)

Crystallographic lattice strains - measured using diffraction techniques - are the same magnitude as typical macroscopic elastic strains. From a research perspective, the main interest is in measuring changes in lattice strains induced during in-situ loading: either from one macroscopic stress level to another or from one cycle to the next. The hope is to link these measurements to deformation-induced changes in the internal structure of crystals, possibly related to inelastic deformation and damage. These measurements are relatively new - little experimental intuition exists and it is difficult to discern whether observed differences are due to actual micromechanical evolution or to random experimental fluctuations. If the measurements are linked to material evolution on the size scale of the individual crystal, they have the potential to change the ideas about grain scale deformation partitioning processes and can be used to validate crystal-based simulation frameworks. Therefore, understanding the uncertainty associated with the lattice strain experiments is a crucial step in their continued development. If the measured lattice strains are of the same order as the random fluctuations that are part of the measurement process, documenting the strains can create more confusion than understanding. Often lattice strain error is quoted as {+-}1 x 10{sup -4}. This simple value fails to account for the range of factors that contribute to the experimental uncertainty - which, if not properly accounted for, may lead to a false confidence in the measurements. The focus of this paper is the development of a lattice strain uncertainty expression that delineates the contributing factors into terms that vary independently: (i) the contribution from the instrument and (ii) the contribution from the material under investigation. These aspects of uncertainty are described, and it is then possible to employ a calibrant powder method (diffraction from an unstrained material with high-precision lattice constants) to quantify the instrument portion of the lattice strain uncertainty. In these experiments, the instrument contribution to the uncertainty has been found to be a function of the Bragg angle and the intensity of the diffracted peaks. To develop a model for the instrument portion of the lattice strain uncertainty two datasets obtained using a MAR345 online image plate at the Cornell High Energy Synchrotron Source and a GE 41RT amorphous silicon detector at the Advanced Photon Source have been examined.

Schuren, J.C.; Miller, M.P. (Cornell)

2012-04-02T23:59:59.000Z

85

Brief paper: Delay-dependent robust H? filtering for uncertain discrete-time singular systems with interval time-varying delay  

Science Conference Proceedings (OSTI)

This paper focuses on the delay-dependent robust H"~ filtering for uncertain discrete-time singular systems with interval time-varying delay. The uncertainty considered is a convex compact set of polytopic type. The purpose is the design of a linear ... Keywords: Discrete-time singular systems, Interval time-varying delay, Linear matrix inequality, Robust H? filter

Jong Hae Kim

2010-03-01T23:59:59.000Z

86

Holographic Indeterminacy, Uncertainty and Noise  

E-Print Network (OSTI)

A theory is developed to describe the nonlocal effect of spacetime quantization on position measurements transverse to macroscopic separations. Spacetime quantum states close to a classical null trajectory are approximated by plane wavefunctions of Planck wavelength (l_P) reference beams; these are used to connect transverse position operators at macroscopically separated events. Transverse positions of events with null spacetime separation, but separated by macroscopic spatial distance $L$, are shown to be quantum conjugate observables, leading to holographic indeterminacy and a new uncertainty principle, a lower bound on the standard deviation of relative transverse position \\Delta x_\\perp > \\sqrt{l_PL} or angular orientation \\Delta\\theta > \\sqrt{l_P/L}. The resulting limit on the number of independent degrees of freedom is shown to agree quantitatively with holographic covariant entropy bounds derived from black hole physics and string theory. The theory predicts a universal ``holographic noise'' of spacet...

Hogan, Craig J

2007-01-01T23:59:59.000Z

87

Developing a Regulatory Framework for Extended Storage and Transportat...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Storage and Transportation Developing a Regulatory Framework for Extended Storage and Transportation Outline: Current Regulatory Framework Future Regulatory Needs Technical...

88

ARM - PI Product - Direct Aerosol Forcing Uncertainty  

NLE Websites -- All DOE Office Websites (Extended Search)

ProductsDirect Aerosol Forcing Uncertainty ProductsDirect Aerosol Forcing Uncertainty Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send PI Product : Direct Aerosol Forcing Uncertainty Site(s) NSA SGP TWP General Description Understanding sources of uncertainty in aerosol direct radiative forcing (DRF), the difference in a given radiative flux component with and without aerosol, is essential to quantifying changes in Earth's radiation budget. We examine the uncertainty in DRF due to measurement uncertainty in the quantities on which it depends: aerosol optical depth, single scattering albedo, asymmetry parameter, solar geometry, and surface albedo. Direct radiative forcing at the top of the atmosphere and at the surface as well as sensitivities, the changes in DRF in response to unit changes in

89

A flexible numerical approach for quantification of epistemic uncertainty  

Science Conference Proceedings (OSTI)

In the field of uncertainty quantification (UQ), epistemic uncertainty often refers to the kind of uncertainty whose complete probabilistic description is not available, largely due to our lack of knowledge about the uncertainty. Quantification of the ... Keywords: Encapsulation problem, Epistemic uncertainty, Generalized polynomial chaos, Uncertainty quantification

Xiaoxiao Chen; Eun-Jae Park; Dongbin Xiu

2013-05-01T23:59:59.000Z

90

Joint quantum measurements with minimum uncertainty  

E-Print Network (OSTI)

Quantum physics constrains the accuracy of joint measurements of incompatible observables. Here we test tight measurement-uncertainty relations using single photons. We implement two independent, idealized uncertainty-estimation methods, the 3-state method and the weak-measurement method, and adapt them to realistic experimental conditions. Exceptional quantum state fidelities of up to 0.99998(6) allow us to verge upon the fundamental limits of measurement uncertainty.

Martin Ringbauer; Devon N. Biggerstaff; Matthew A. Broome; Alessandro Fedrizzi; Cyril Branciard; Andrew G. White

2013-08-26T23:59:59.000Z

91

PDV Uncertainty Estimation & Methods Comparison  

Science Conference Proceedings (OSTI)

Several methods are presented for estimating the rapidly changing instantaneous frequency of a time varying signal that is contaminated by measurement noise. Useful a posteriori error estimates for several methods are verified numerically through Monte Carlo simulation. However, given the sampling rates of modern digitizers, sub-nanosecond variations in velocity are shown to be reliably measurable in most (but not all) cases. Results support the hypothesis that in many PDV regimes of interest, sub-nanosecond resolution can be achieved.

Machorro, E.

2011-11-01T23:59:59.000Z

92

Long Term Power Generation Planning Under Uncertainty.  

E-Print Network (OSTI)

??Generation expansion planning concerns investment and operation decisions for different types of power plants over a multi-decade horizon under various uncertainties. The goal of this… (more)

Jin, Shan

2009-01-01T23:59:59.000Z

93

The impact of uncertainty and risk measures  

E-Print Network (OSTI)

peak, and finds that this nonlinear transformation of the oiland oil price growth rates. As seen in the above illustration, uncertainty is at its peak

Jo, Soojin; Jo, Soojin

2012-01-01T23:59:59.000Z

94

Dynamic Linear Production Games under Uncertainty  

E-Print Network (OSTI)

Oct 2, 2013 ... Abstract: In situations where uncertain costs are shared over time, static ... under uncertainty, generalizing classical linear production games to ...

95

A Partial Order on Uncertainty and Information  

E-Print Network (OSTI)

Information and uncertainty are closely related and extensively studied concepts in a number of scientific disciplines such as communication theory, probability theory, and statistics. Increasing the information arguably reduces the uncertainty on a given random subject. Consider the uncertainty measure as the variance of a random variable. Given the information that its outcome is in an interval, the uncertainty is expected to reduce when the interval shrinks. This proposition is not generally true. In this paper, we provide a necessary and sufficient condition for this proposition when the random variable is absolutely continuous or integer valued. We also give a similar result on Shannon information.

Chen, Jiahua

2011-01-01T23:59:59.000Z

96

High-Dose Dosimetry Uncertainty Tables  

Science Conference Proceedings (OSTI)

... 4.0. Alanine Transfer - E-Beam, Uncertainty Source, Type A (%), Type B (%). ... Calibration Curve, 0.50, 0.10. Electron Energy Dependence, 0.10. ...

2013-04-02T23:59:59.000Z

97

Essays in inventory decisions under uncertainty .  

E-Print Network (OSTI)

??Uncertainty is a norm in business decisions. In this research, we focus on the inventory decisions for companies with uncertain customer demands. We first investigate… (more)

Manikas, Andrew Steven

2008-01-01T23:59:59.000Z

98

Design Feasibility Analysis and Optimization under Uncertainty...  

NLE Websites -- All DOE Office Websites (Extended Search)

Feasibility Analysis and Optimization under Uncertainty - A Bayesian Optimal Decision Framework Speaker(s): Jose M. Ortega Date: October 7, 2003 - 12:00pm Location: Bldg. 90...

99

Monte Carlo parameter studies and uncertainty analyses with MCNP5  

SciTech Connect

A software tool called mcnp-pstudy has been developed to automate the setup, execution, and collection of results from a series of MCNPS Monte Carlo calculations. This tool provides a convenient means of performing parameter studies, total uncertainty analyses, parallel job execution on clusters, stochastic geometry modeling, and other types of calculations where a series of MCNPS jobs must be performed with varying problem input specifications. Monte Carlo codes are being used for a wide variety of applications today due to their accurate physical modeling and the speed of today's computers. In most applications for design work, experiment analysis, and benchmark calculations, it is common to run many calculations, not just one, to examine the effects of design tolerances, experimental uncertainties, or variations in modeling features. We have developed a software tool for use with MCNP5 to automate this process. The tool, mcnp-pstudy, is used to automate the operations of preparing a series of MCNP5 input files, running the calculations, and collecting the results. Using this tool, parameter studies, total uncertainty analyses, or repeated (possibly parallel) calculations with MCNP5 can be performed easily. Essentially no extra user setup time is required beyond that of preparing a single MCNP5 input file.

Brown, F. B. (Forrest B.); Sweezy, J. E. (Jeremy E.); Hayes, R. B. (Robert B.)

2004-01-01T23:59:59.000Z

100

Regulatory Drivers | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Regulatory Drivers Regulatory Drivers Regulatory Drivers Statutes and Regulations Relating to Legacy Management Code of Federal Regulations (CFR) Title 10: Energy "Licensing Requirements for Land Disposal of Radioactive Waste," 10 CFR 61 "Occupational Radiation Protection," 10 CFR 835 Title 40: Protection of Environment "National Primary Drinking Water Regulations," 40 CFR 141 "Standards for Owners and Operators of Hazardous Waste Treatment, Storage and Disposal Facilities," 40 CFR 264 "National Oil and Hazardous Substances Pollution Contingency Plan," 40 CFR 300 Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA)/Resource Conservation and Recovery Act (RCRA) "Comprehensive Environmental Response, Compensation, and Liability

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


101

THE FEDERAL ENERGY REGULATORY COMMISSION'S UNCLASSIFIED CYBER...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

THE FEDERAL ENERGY REGULATORY COMMISSION'S UNCLASSIFIED CYBER SECURITY PROGRAM 2002, IG-0569 THE FEDERAL ENERGY REGULATORY COMMISSION'S UNCLASSIFIED CYBER SECURITY PROGRAM 2002,...

102

Investment under Regulatory Uncertainty: U.S. Electricity Generation Investment Since 1996  

E-Print Network (OSTI)

the IPP subsidiary of Duke Energy with the blessing of localnancial setback for Duke Energy. the results in this paperelectric utilities (e.g. Duke Energy North America), almsot

Ishii, Jun; Yan, Jingming

2004-01-01T23:59:59.000Z

103

Investment under Regulatory Uncertainty: U.S. Electricity Generation Investment Since 1996  

E-Print Network (OSTI)

Risk in U.K. Electricity Distribution. ” Journal ofRisk in the U.K. Electricity Distribution Industry. ” Annals

Ishii, Jun; Yan, Jingming

2004-01-01T23:59:59.000Z

104

Investment under Regulatory Uncertainty: U.S. Electricity Generation Investment Since 1996  

E-Print Network (OSTI)

signi?cant growth in electricity demand. The returns thatmore closely follows electricity demand. Furthermore, whilestate and year where electricity demand (LogLoad) is larger

Ishii, Jun; Yan, Jingming

2004-01-01T23:59:59.000Z

105

Risk Aversion and CO2 Regulatory Uncertainty in Power Generation Investment: Policy and Modeling Implications  

E-Print Network (OSTI)

functions over the year within the second stage (e.g., peak vs baseload demands). This distribution is known ahead of time to all market players, and is the reason why in equilibrium there is a mix of high- and low-variable cost generation technologies... functions including demand variability, which is a fundamental feature of electricity economics, resulting in the need for a mix of capital-intensive baseload versus high fuel cost peaking capacity [35]. The degree of in- tra-annual demand variability...

Fan, L; Hobbs, Benjamin F; Norman, C S

106

Investment under Regulatory Uncertainty: U.S. Electricity Generation Investment Since 1996  

E-Print Network (OSTI)

orts were mostly mass-burn waste-to-energy plants, but morelonger develops non-waste-to-energy projects in the U.S. ”,its core business is waste-to-energy facilities 58 After

Ishii, Jun; Yan, Jingming

2004-01-01T23:59:59.000Z

107

Investment under Regulatory Uncertainty: U.S. Electricity Generation Investment Since 1996  

E-Print Network (OSTI)

Coordination in the Electricity Industry,” especially Faridof their respective electricity industries. A key policywould implement their electricity industry restructuring. It

Ishii, Jun; Yan, Jingming

2004-01-01T23:59:59.000Z

108

Regulatory Compliance | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Regulatory Compliance Regulatory Compliance Regulatory Compliance This photo shows the inside the K West Basin facility, where workers are retrieving highly radioactive sludge material under 17 feet of water. This photo shows the inside the K West Basin facility, where workers are retrieving highly radioactive sludge material under 17 feet of water. The Department of Energy is not a regulatory agency; however it does self-regulate its own radioactive waste. DOE is also affected by a variety of statutes, legislation, regulations, directives and guidance. Many of the current compliance-related actions revolve around waste and material disposition. These include National Environmental Policy Act (NEPA) Environmental Impact Statements and Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) Records of Decision. Links, below,

109

Building Regulatory Capacity for Change  

NLE Websites -- All DOE Office Websites (Extended Search)

Regulatory Capacity for Change PRESENTED BY Sarah Spencer-Workman, LEED AP July 27, 2011 "How to identify and review laws relevant to buildings and find places and opportunities...

110

AHAM Comments Regulatory Burden RFI  

Energy.gov (U.S. Department of Energy (DOE))

The Association of Home Appliance Manufacturers (AHAM) respectfully submits the following comments to the Department of Energy (DOE) on its Regulatory Burden RFI, 77 Fed. Reg. 47328 (Aug. 8, 2012).

111

Holographic Indeterminacy, Uncertainty and Noise  

E-Print Network (OSTI)

A theory is developed to describe the nonlocal effect of spacetime quantization on position measurements transverse to macroscopic separations. Spacetime quantum states close to a classical null trajectory are approximated by plane wavefunctions of Planck wavelength (l_P) reference beams; these are used to connect transverse position operators at macroscopically separated events. Transverse positions of events with null spacetime separation, but separated by macroscopic spatial distance $L$, are shown to be quantum conjugate observables, leading to holographic indeterminacy and a new uncertainty principle, a lower bound on the standard deviation of relative transverse position \\Delta x_\\perp > \\sqrt{l_PL} or angular orientation \\Delta\\theta > \\sqrt{l_P/L}. The resulting limit on the number of independent degrees of freedom is shown to agree quantitatively with holographic covariant entropy bounds derived from black hole physics and string theory. The theory predicts a universal ``holographic noise'' of spacetime, appearing as shear perturbations with a frequency-independent power spectral density S_H=l_P/c, or in equivalent metric perturbation units, h_{H,rms} \\sqrt{l_P/c} = 2.3 \\times 10^{-22} /\\sqrt{Hz}. If this description of holographic phenomenology is valid, interferometers with current technology could undertake direct quantitative studies of quantum gravity.

Craig J. Hogan

2007-09-05T23:59:59.000Z

112

Constructing Uncertainty Sets for Robust Linear Optimization  

Science Conference Proceedings (OSTI)

In this paper, we propose a methodology for constructing uncertainty sets within the framework of robust optimization for linear optimization problems with uncertain parameters. Our approach relies on decision maker risk preferences. Specifically, we ... Keywords: coherent risk measures, distortion risk measures, robust optimization, uncertainty sets

Dimitris Bertsimas; David B. Brown

2009-11-01T23:59:59.000Z

113

Uncertainty and Inference for Verification Measures  

Science Conference Proceedings (OSTI)

When a forecast is assessed, a single value for a verification measure is often quoted. This is of limited use, as it needs to be complemented by some idea of the uncertainty associated with the value. If this uncertainty can be quantified, it is ...

Ian T. Jolliffe

2007-06-01T23:59:59.000Z

114

Stochastic Variational Approach to Minimum Uncertainty States  

E-Print Network (OSTI)

We introduce a new variational characterization of Gaussian diffusion processes as minimum uncertainty states. We then define a variational method constrained by kinematics of diffusions and Schr\\"{o}dinger dynamics to seek states of local minimum uncertainty for general non-harmonic potentials.

F. Illuminati; L. Viola

1995-01-11T23:59:59.000Z

115

Regulatory facility guide for Ohio  

Science Conference Proceedings (OSTI)

The Regulatory Facility Guide (RFG) has been developed for the DOE and contractor facilities located in the state of Ohio. It provides detailed compilations of international, federal, and state transportation-related regulations applicable to shipments originating at destined to Ohio facilities. This RFG was developed as an additional resource tool for use both by traffic managers who must ensure that transportation operations are in full compliance with all applicable regulatory requirements and by oversight personnel who must verify compliance activities.

Anderson, S.S.; Bock, R.E.; Francis, M.W.; Gove, R.M.; Johnson, P.E.; Kovac, F.M.; Mynatt, J.O. [Oak Ridge National Lab., TN (United States); Rymer, A.C. [Transportation Consulting Services, Knoxville, TN (United States)

1994-02-28T23:59:59.000Z

116

Vehicle Technologies Office: EPAct Transportation Regulatory Activities  

NLE Websites -- All DOE Office Websites (Extended Search)

Vehicle Technologies Office: EPAct Transportation Vehicle Technologies Office: EPAct Transportation Regulatory Activities to someone by E-mail Share Vehicle Technologies Office: EPAct Transportation Regulatory Activities on Facebook Tweet about Vehicle Technologies Office: EPAct Transportation Regulatory Activities on Twitter Bookmark Vehicle Technologies Office: EPAct Transportation Regulatory Activities on Google Bookmark Vehicle Technologies Office: EPAct Transportation Regulatory Activities on Delicious Rank Vehicle Technologies Office: EPAct Transportation Regulatory Activities on Digg Find More places to share Vehicle Technologies Office: EPAct Transportation Regulatory Activities on AddThis.com... Home About Covered Fleets Compliance Methods Alternative Fuel Petitions Resources The U.S. Department of Energy's (DOE) Vehicle Technologies Office manages

117

EPAct Transportation Regulatory Activities: Key Federal Statutes  

NLE Websites -- All DOE Office Websites (Extended Search)

Key Key Federal Statutes to someone by E-mail Share EPAct Transportation Regulatory Activities: Key Federal Statutes on Facebook Tweet about EPAct Transportation Regulatory Activities: Key Federal Statutes on Twitter Bookmark EPAct Transportation Regulatory Activities: Key Federal Statutes on Google Bookmark EPAct Transportation Regulatory Activities: Key Federal Statutes on Delicious Rank EPAct Transportation Regulatory Activities: Key Federal Statutes on Digg Find More places to share EPAct Transportation Regulatory Activities: Key Federal Statutes on AddThis.com... Home About Contacts Covered Fleets Compliance Methods Alternative Fuel Petitions Resources Key Federal Statutes These are excerpts from federal statutes that established key Energy Policy Act (EPAct) transportation regulatory activities.

118

Time varying, multivariate volume data reduction  

SciTech Connect

Large-scale supercomputing is revolutionizing the way science is conducted. A growing challenge, however, is understanding the massive quantities of data produced by large-scale simulations. The data, typically time-varying, multivariate, and volumetric, can occupy from hundreds of gigabytes to several terabytes of storage space. Transferring and processing volume data of such sizes is prohibitively expensive and resource intensive. Although it may not be possible to entirely alleviate these problems, data compression should be considered as part of a viable solution, especially when the primary means of data analysis is volume rendering. In this paper we present our study of multivariate compression, which exploits correlations among related variables, for volume rendering. Two configurations for multidimensional compression based on vector quantization are examined. We emphasize quality reconstruction and interactive rendering, which leads us to a solution using graphics hardware to perform on-the-fly decompression during rendering. In this paper we present a solution which addresses the need for data reduction in large supercomputing environments where data resulting from simulations occupies tremendous amounts of storage. Our solution employs a lossy encoding scheme to acrueve data reduction with several options in terms of rate-distortion behavior. We focus on encoding of multiple variables together, with optional compression in space and time. The compressed volumes can be rendered directly with commodity graphics cards at interactive frame rates and rendering quality similar to that of static volume renderers. Compression results using a multivariate time-varying data set indicate that encoding multiple variables results in acceptable performance in the case of spatial and temporal encoding as compared to independent compression of variables. The relative performance of spatial vs. temporal compression is data dependent, although temporal compression has the advantage of offering smooth animations, while spatial compression can handle volumes of larger dimensions.

Ahrens, James P [Los Alamos National Laboratory; Fout, Nathaniel [UC DAVIS; Ma, Kwan - Liu [UC DAVIS

2010-01-01T23:59:59.000Z

119

Statistical Uncertainty Analysis Applied to Criticality Calculation  

Science Conference Proceedings (OSTI)

In this paper, we present an uncertainty methodology based on a statistical approach, for assessing uncertainties in criticality prediction using monte carlo method due to uncertainties in the isotopic composition of the fuel. The methodology has been applied to criticality calculations with MCNP5 with additional stochastic input of the isotopic fuel composition. The stochastic input were generated using the latin hypercube sampling method based one the probability density function of each nuclide composition. The automatic passing of the stochastic input to the MCNP and the repeated criticality calculation is made possible by using a python script to link the MCNP and our latin hypercube sampling code.

Hartini, Entin; Andiwijayakusuma, Dinan; Susmikanti, Mike; Nursinta, A. W. [Centre for Nuclear Informatics Development, National Nuclear Energy Agency of Indonesia (Indonesia)

2010-06-22T23:59:59.000Z

120

Quantification of Uncertainties Due to Opacities in a Laser-Driven Radiative-Shock Problem  

E-Print Network (OSTI)

This research presents new physics-based methods to estimate predictive uncertainty stemming from uncertainty in the material opacities in radiative transfer computations of key quantities of interest (QOIs). New methods are needed because it is infeasible to apply standard uncertainty-propagation techniques to the O(105) uncertain opacities in a realistic simulation. The new approach toward uncertainty quantification applies the uncertainty analysis to the physical parameters in the underlying model used to calculate the opacities. This set of uncertain parameters is much smaller (O(102)) than the number of opacities. To further reduce the dimension of the set of parameters to be rigorously explored, we use additional screening applied at two different levels of the calculational hierarchy: first, physics-based screening eliminates the physical parameters that are unimportant from underlying physics models a priori; then, sensitivity analysis in simplified versions of the complex problem of interest screens out parameters that are not important to the QOIs. We employ a Bayesian Multivariate Adaptive Regression Spline (BMARS) emulator for this sensitivity analysis. The high dimension of the input space and large number of samples test the efficacy of these methods on larger problems. Ultimately, we want to perform uncertainty quantification on the large, complex problem with the reduced set of parameters. Results of this research demonstrate that the QOIs for target problems agree at for different parameter screening criteria and varying sample sizes. Since the QOIs agree, we have gained confidence in our results using the multiple screening criteria and sample sizes.

Hetzler, Adam C

2013-05-01T23:59:59.000Z

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


121

Building Technologies Office: Regulatory Processes  

NLE Websites -- All DOE Office Websites (Extended Search)

Regulatory Processes Regulatory Processes Beginning with the Energy Policy and Conservation Act of 1975, Congress has enacted a series of laws establishing federal appliance and equipment standards and the Department of Energy's (DOE) authority to develop, amend, and implement standards. To implement these laws, the Appliance and Equipment Standards program manages the regulatory processes described below. Standards Development and Revision Standards for a given product may be mandated by Congress or established by DOE pursuant to statutory authority. Standards established by DOE are developed through a multi-step rulemaking process that includes public participation. Test Procedure Development and Revision Most standards rulemakings are accompanied by a concurrent test procedure rulemaking. Test procedures detail how manufacturers must test their products to certify that they comply with the applicable energy conservation standards. (42 U.S.C. 6293; 6314) DOE also uses the test procedures to determine compliance with the applicable standards. (42 U.S.C. 6295(s))

122

Pursuing Energy Efficiency as a Hedge Against Carbon Regulatory Risks  

NLE Websites -- All DOE Office Websites (Extended Search)

Pursuing Energy Efficiency as a Hedge Against Carbon Regulatory Risks Pursuing Energy Efficiency as a Hedge Against Carbon Regulatory Risks Current Resource Planning Practices in the West Title Pursuing Energy Efficiency as a Hedge Against Carbon Regulatory Risks Current Resource Planning Practices in the West Publication Type Report Year of Publication 2008 Authors Barbose, Galen L., Ryan H. Wiser, Amol Phadke, and Charles A. Goldman Pagination 12 Date Published 08/2008 Publisher LBNL City Berkeley Keywords electric utilities, electricity markets and policy group, energy analysis and environmental impacts department, energy efficiency, power system planning Abstract Uncertainty surrounding the nature and timing of future carbon regulations poses a fundamental and far-reaching financial risk for electric utilities and their ratepayers. Long-term resource planning provides a potential framework within which utilities can assess carbon regulatory risk and evaluate options for mitigating exposure to this risk through investments in energy efficiency and other low-carbon resources. In this paper, we examine current resource planning practices related to managing carbon regulatory risk, based on a comparative analysis of the most-recent long-term resource plans filed by fifteen major utilities in the Western U.S. First, we compare the assumptions and methods used by utilities to assess carbon regulatory risk and to evaluate energy efficiency as a risk mitigation option. Although most utilities have made important strides in beginning to address carbon regulatory risk within their resource plan, we also identify a number of opportunities for improvement and offer recommendations for resource planners and state regulators to consider. We also summarize the composition and carbon intensity of the preferred resource portfolios selected by the fifteen Western utilities, highlighting the contribution of energy efficiency and its impact on the carbon intensity of utilities' proposed resource strategies. Energy efficiency and renewables are the dominant low-carbon resources included in utilities' preferred portfolios. Across the fifteen utilities, energy efficiency constitutes anywhere from 6% to almost 50% of the preferred portfolio energy resources, and represents 22% of all incremental resources in aggregate.

123

Nuclear Data Uncertainties in 2004: A Perspective  

Science Conference Proceedings (OSTI)

Interest in nuclear data uncertainties is growing robustly after having languished for several years. Renewed attention to this topic is being motivated by the practical need for assuring that nuclear systems will be safe

Donald L. Smith

2005-01-01T23:59:59.000Z

124

MOS Uncertainty Estimates in an Ensemble Framework  

Science Conference Proceedings (OSTI)

It is being increasingly recognized that the uncertainty in weather forecasts should be quantified and furnished to users along with the single-value forecasts usually provided. Probabilistic forecasts of “events” have been made in special cases; ...

Bob Glahn; Matthew Peroutka; Jerry Wiedenfeld; John Wagner; Greg Zylstra; Bryan Schuknecht; Bryan Jackson

2009-01-01T23:59:59.000Z

125

Climate Science and the Uncertainty Monster  

Science Conference Proceedings (OSTI)

How to understand and reason about uncertainty in climate science is a topic that is receiving increasing attention in both the scientific and philosophical literature. This paper provides a perspective on exploring ways to understand, assess, and reason ...

J. A. Curry; P. J. Webster

2011-12-01T23:59:59.000Z

126

Microsoft Word - Price Uncertainty Supplement.doc  

Annual Energy Outlook 2012 (EIA)

0 1 August 2010 Short-Term Energy Outlook Energy Price Volatility and Forecast Uncertainty 1 August 10, 2010 Release WTI crude oil spot prices averaged 76.32 per barrel in July...

127

Quantifying reliability uncertainty : a proof of concept.  

SciTech Connect

This paper develops Classical and Bayesian methods for quantifying the uncertainty in reliability for a system of mixed series and parallel components for which both go/no-go and variables data are available. Classical methods focus on uncertainty due to sampling error. Bayesian methods can explore both sampling error and other knowledge-based uncertainties. To date, the reliability community has focused on qualitative statements about uncertainty because there was no consensus on how to quantify them. This paper provides a proof of concept that workable, meaningful quantification methods can be constructed. In addition, the application of the methods demonstrated that the results from the two fundamentally different approaches can be quite comparable. In both approaches, results are sensitive to the details of how one handles components for which no failures have been seen in relatively few tests.

Diegert, Kathleen V.; Dvorack, Michael A.; Ringland, James T.; Mundt, Michael Joseph; Huzurbazar, Aparna (Los Alamos National Laboratory, Los Alamos, NM); Lorio, John F.; Fatherley, Quinn (Los Alamos National Laboratory, Los Alamos, NM); Anderson-Cook, Christine (Los Alamos National Laboratory, Los Alamos, NM); Wilson, Alyson G. (Los Alamos National Laboratory, Los Alamos, NM); Zurn, Rena M.

2009-10-01T23:59:59.000Z

128

Classification of Unseen Examples under Uncertainty  

Science Conference Proceedings (OSTI)

Very frequently machine learning from real-life data is affected by uncertainty. There are three main reasons for imperfection in data: incompleteness, imprecision (also called vagueness), and errors. In this paper the main emphasis is on classification ...

Jerzy W. Grzymala-Busse

1997-12-01T23:59:59.000Z

129

Operational Forecaster Uncertainty Needs and Future Roles  

Science Conference Proceedings (OSTI)

Key results of a comprehensive survey of U.S. National Weather Service operational forecast managers concerning the assessment and communication of forecast uncertainty are presented and discussed. The survey results revealed that forecasters are ...

David R. Novak; David R. Bright; Michael J. Brennan

2008-12-01T23:59:59.000Z

130

Parameterizing Mesoscale Wind Uncertainty for Dispersion Modeling  

Science Conference Proceedings (OSTI)

A parameterization of numerical weather prediction uncertainty is presented for use by atmospheric transport and dispersion models. The theoretical development applies Taylor dispersion concepts to diagnose dispersion metrics from numerical wind ...

Leonard J. Peltier; Sue Ellen Haupt; John C. Wyngaard; David R. Stauffer; Aijun Deng; Jared A. Lee; Kerrie J. Long; Andrew J. Annunzio

2010-08-01T23:59:59.000Z

131

Uncertainty in climate change policy analysis  

E-Print Network (OSTI)

Achieving agreement about whether and how to control greenhouse gas emissions would be difficult enough even if the consequences were fully known. Unfortunately, choices must be made in the face of great uncertainty, about ...

Jacoby, Henry D.; Prinn, Ronald G.

132

Multifidelity methods for multidisciplinary design under uncertainty  

E-Print Network (OSTI)

For computational design and analysis tasks, scientists and engineers often have available many different simulation models. The output of each model has an associated uncertainty that is a result of the modeling process. ...

Christensen, Daniel Erik

2012-01-01T23:59:59.000Z

133

Meteorological Data Needs for Modeling Air Quality Uncertainties  

Science Conference Proceedings (OSTI)

A probabilistic framework for incorporating uncertainty in air quality models is described. The quantitative dependence of the uncertainty in calculated air quality concentrations on the uncertainty in the input meteorological data is illustrated ...

W. S. Lewellen; R. I. Sykes

1989-10-01T23:59:59.000Z

134

Uncertainty Study of INEEL EST Laboratory Battery Testing Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

INEELEXT-01-00505 December 2001 Uncertainty Study of INEEL EST Laboratory Battery Testing Systems Volume 1 Background and Derivation of Uncertainty Relationships John L. Morrison...

135

Distributed Generation Investment by a Microgrid Under Uncertainty  

E-Print Network (OSTI)

operating strategy of the microgrid is not known in advance,Generation Investment by a Microgrid Under Uncertainty AfzalGeneration Investment by a Microgrid Under Uncertainty Afzal

Siddiqui, Afzal; Marnay, Chris

2006-01-01T23:59:59.000Z

136

Distributed Generation Investment by a Microgrid under Uncertainty  

E-Print Network (OSTI)

Effects of carbon tax on microgrid combined heat and powerGeneration Investment by a Microgrid under Uncertainty AfzalGeneration Investment by a Microgrid under Uncertainty Afzal

Siddiqui, Afzal

2008-01-01T23:59:59.000Z

137

EPAct Transportation Regulatory Activities: Key Terms  

NLE Websites -- All DOE Office Websites (Extended Search)

Key Terms Key Terms to someone by E-mail Share EPAct Transportation Regulatory Activities: Key Terms on Facebook Tweet about EPAct Transportation Regulatory Activities: Key Terms on Twitter Bookmark EPAct Transportation Regulatory Activities: Key Terms on Google Bookmark EPAct Transportation Regulatory Activities: Key Terms on Delicious Rank EPAct Transportation Regulatory Activities: Key Terms on Digg Find More places to share EPAct Transportation Regulatory Activities: Key Terms on AddThis.com... Home About Covered Fleets Compliance Methods Alternative Fuel Petitions Resources Guidance Documents Statutes & Regulations Program Annual Reports Fact Sheets Newsletter Case Studies Workshops Tools Key Terms FAQs Key Terms The Energy Policy Act (EPAct) includes specific terminology related to

138

EPAct Transportation Regulatory Activities: Alternative Compliance for  

NLE Websites -- All DOE Office Websites (Extended Search)

Alternative Compliance for State and Alternative Fuel Provider Fleets to someone by E-mail Share EPAct Transportation Regulatory Activities: Alternative Compliance for State and Alternative Fuel Provider Fleets on Facebook Tweet about EPAct Transportation Regulatory Activities: Alternative Compliance for State and Alternative Fuel Provider Fleets on Twitter Bookmark EPAct Transportation Regulatory Activities: Alternative Compliance for State and Alternative Fuel Provider Fleets on Google Bookmark EPAct Transportation Regulatory Activities: Alternative Compliance for State and Alternative Fuel Provider Fleets on Delicious Rank EPAct Transportation Regulatory Activities: Alternative Compliance for State and Alternative Fuel Provider Fleets on Digg Find More places to share EPAct Transportation Regulatory

139

EPAct Transportation Regulatory Activities: Alternative Fuel Petitions  

NLE Websites -- All DOE Office Websites (Extended Search)

Alternative Fuel Petitions to someone by E-mail Share EPAct Transportation Regulatory Activities: Alternative Fuel Petitions on Facebook Tweet about EPAct Transportation Regulatory Activities: Alternative Fuel Petitions on Twitter Bookmark EPAct Transportation Regulatory Activities: Alternative Fuel Petitions on Google Bookmark EPAct Transportation Regulatory Activities: Alternative Fuel Petitions on Delicious Rank EPAct Transportation Regulatory Activities: Alternative Fuel Petitions on Digg Find More places to share EPAct Transportation Regulatory Activities: Alternative Fuel Petitions on AddThis.com... Home About Covered Fleets Compliance Methods Alternative Fuel Petitions Resources Alternative Fuel Petitions Section 301(2) of the Energy Policy Act of 1992 (EPAct 1992) defines

140

Office of Enforcement - Regulatory Assistance Reviews  

NLE Websites -- All DOE Office Websites (Extended Search)

Regulatory Assistance Reviews Regulatory Assistance Reviews Office of Enforcement and Oversight (formerly Program Reviews) Enforcement Regulatory Assistance Reviews evaluate contractor programs for identifying, evaluating, reporting and correcting noncompliances. The objective of these reviews is to work collaboratively with sites to identify areas where program effectiveness can be improved and ensure that noncompliances are being proactively self-identified. 2013 Office of Security Enforcement Regulatory Assistance Review of Battelle at the Pacific Northwest National Laboratory, July 18, 2013 Office of Worker Safety and Health Enforcement Regulatory Assistance Review of L ATA Environmental Services of Kentucky, LLC at the Paducah Gaseous Diffusion Plant, February 11, 2013 Office of Security Enforcement Regulatory Assistance Review of

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


141

Improving Regulation and Regulatory Review  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Alton Strategic Environmental Group Alton Strategic Environmental Group New Port Richey, FL charles.alton@earthlink.net April 4, 2011 Daniel Cohen, Assistant General Counsel Legislation, Regulation, and Energy Efficiency Office of the General Counsel U.S. Department of Energy 1000 Independence Avenue, SW Washington, DC 20585 Dear Mr. Cohen: I have reviewed the Request For Information regarding Reducing Regulatory Reform issued

142

Regulatory Review and International Comparison  

E-Print Network (OSTI)

in a liberalised electricity market by developing a costs/benefit analysis of different regulatory designs Méditerranéen de l'Energie (OME), France For further information: Martin J.J. Scheepers Energy research Centre by the European Commission, Directorate-General for Energy and Transport, under the Energy Intelligent Europe (EIE

143

Investment and Upgrade in Distributed Generation under Uncertainty  

Science Conference Proceedings (OSTI)

The ongoing deregulation of electricity industries worldwide is providing incentives for microgrids to use small-scale distributed generation (DG) and combined heat and power (CHP) applications via heat exchangers (HXs) to meet local energy loads. Although the electric-only efficiency of DG is lower than that of central-station production, relatively high tariff rates and the potential for CHP applications increase the attraction of on-site generation. Nevertheless, a microgrid contemplatingthe installation of gas-fired DG has to be aware of the uncertainty in the natural gas price. Treatment of uncertainty via real options increases the value of the investment opportunity, which then delays the adoption decision as the opportunity cost of exercising the investment option increases as well. In this paper, we take the perspective of a microgrid that can proceed in a sequential manner with DG capacity and HX investment in order to reduce its exposure to risk from natural gas price volatility. In particular, with the availability of the HX, the microgrid faces a tradeoff between reducing its exposure to the natural gas price and maximising its cost savings. By varying the volatility parameter, we find that the microgrid prefers a direct investment strategy for low levels of volatility and a sequential one for higher levels of volatility.

Siddiqui, Afzal; Maribu, Karl

2008-08-18T23:59:59.000Z

144

Investment and Upgrade in Distributed Generation under Uncertainty ?  

E-Print Network (OSTI)

The ongoing deregulation of electricity industries worldwide is providing incentives for microgrids to use small-scale distributed generation (DG) and combined heat and power (CHP) applications via heat exchangers (HXs) to meet local energy loads. Although the electric-only efficiency of DG is lower than that of central-station production, relatively high tariff rates and the potential for CHP applications increase the attraction of on-site generation. Nevertheless, a microgrid contemplating the installation of gas-fired DG has to be aware of the uncertainty in the natural gas price. Treatment of uncertainty via real options increases the value of the investment opportunity, which then delays the adoption decision as the opportunity cost of exercising the investment option increases as well. In this paper, we take the perspective of a microgrid that can proceed in a sequential manner with DG capacity and HX investment in order to reduce its exposure to risk from natural gas price volatility. In particular, with the availability of the HX, we find that the microgrid faces a tradeoff between reducing its exposure to the natural gas price and maximising its cost savings. By varying the volatility parameter, we find ranges over which direct and sequential investment strategies dominate. Keywords:

Afzal Siddiqui; Karl Maribu

2007-01-01T23:59:59.000Z

145

Uncertainty analysis for unprotected accidents in sodium-cooled fast reactors.  

SciTech Connect

Reactor safety analyses often utilize a deterministic approach where in addition to performing best estimate calculations, uncertainty is accommodated by performing calculations with pessimistic values for input parameters that are important to safety. Here, a stochastic approach is considered for explicitly including uncertainty in safety parameters by applying Monte Carlo sampling coupled with established deterministic reactor safety analysis tools. The Monte Carlo approach yields frequency distributions for reactor safety metrics (e.g., peak temperatures) that can be compared to performance limits, allowing for an improved determination of the safety margin and a clear determination of which safety parameters are most important to the transient response. Because the approach enables the estimation of probabilities for violating safety boundaries, it should be useful in a risk-based regulatory environment. It has the advantage of not requiring any substantial rewriting of existing safety analysis computer codes.

Nutt, W. M.; Morris, E. E. (Nuclear Engineering Division)

2011-04-01T23:59:59.000Z

146

Reducing Uncertainty in Fisheries Management: The Time for Fishers' Ecological Knowledge  

E-Print Network (OSTI)

This dissertation work presents a novel method for addressing system uncertainty to improve management of a small-scale fishery in St. Croix, United States Virgin Islands. Using fishers' ecological knowledge (FEK), this research examines existing perspectives and biases through the Q-Method to identify regulatory inefficiencies in the management framework and strengthen the rationale for including fishers into the management process, develops a coupled behavior-economics model to predict the likelihood of fishing the preferred grounds under a range of physical and regulatory conditions, establishes a baseline assessment of a spawning aggregation of mutton snapper following sixteen years of protection through a no-take marine protected area, and conducts a discrete choice method test to examine likely public support for FEK-based proposed regulatory alternatives. This work contributes to an under-studied and much-needed area of fisheries management, that of incorporating socioeconomic motivations within an ecosystem-based framework. As fisheries management efforts begin to embrace ecosystem-based approaches, the need for understanding and incorporating the knowledge and behavior of fishers into management has never been greater. Ecological goals of fishery sustainability and continued habitat function cannot be achieved without first understanding how fishers view and respond to any regulatory environment and then developing a framework that achieves the greatest support for those regulations. The time has come for incorporating FEK into ecosystem-based fisheries management.

Carr, Liam

2012-05-01T23:59:59.000Z

147

Regulatory Burden RFI | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Regulatory Burden RFI Regulatory Burden RFI These comments are submitted by the Air-Conditioning, Heating and Refrigeration Institute (AHRI) in response to the U.S. Department of...

148

Regulatory Resources for Process Contaminants (3-MCPD)  

Science Conference Proceedings (OSTI)

Regulatory information and references for 3-MCPD(3-Monochloropropane-1,2-diol )process contaminants. Regulatory Resources for Process Contaminants (3-MCPD) 3-MCPD 2-diol 3-MCPD 3-MCPD Esters 3-monochloropropane-1 acid analysis aocs april articles certifi

149

Regulatory Perspective on the Use of Cementitious ...  

United States Nuclear Regulatory Commission 1 ... - Development of accelerated laboratory-scale test methods. - Compilation of a database of ...

150

Report: Technical Uncertainty and Risk Reduction  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

TECHNICAL UNCERTAINTY AND RISK REDUCTION TECHNICAL UNCERTAINTY AND RISK REDUCTION Background In FY 2007 EMAB was tasked to assess EM's ability to reduce risk and technical uncertainty. Board members explored this topic throughout the year as a component of their focus on the previously discussed topic of Discretionary Budgeting. Discussion Understanding the risks and variability associated with EM's projects is a challenging task that has the potential to significantly impact the program's established baselines. According to budget personnel, EM has established a database of baseline variables and possibilities; however, this tool is project-specific and does not apply to the greater complex. The Board believes that EM could benefit from incorporating an additional and more comprehensive data point into the baseline development process that budgets

151

Microsoft Word - Price Uncertainty Supplement.doc  

Gasoline and Diesel Fuel Update (EIA)

Outlook Price Uncertainty-January 2010 Outlook Price Uncertainty-January 2010 1 January 2010 Short-Term Energy Outlook Energy Price Volatility and Forecast Uncertainty 1 January 12, 2010 Release Crude Oil Prices. West Texas Intermediate (WTI) crude oil spot prices averaged $74.50 per barrel in December 2009, about $3.50 per barrel lower than the prior month's average. The WTI spot price fell from $78 to $70 during the first 2 weeks of December, but colder-than-normal weather and U.S. crude oil and product inventory draws that exceeded the December 5-year averages helped push it back up to $79 per barrel by the end of the month. EIA forecasts that WTI spot prices will weaken over

152

Evaluation of Uncertainties in Cost Estimations  

E-Print Network (OSTI)

This paper examines uncertainty in several cost estimation methods for large infrastructure projects. In particular the impact and consequences of different unexpected events that have occurred during the construction of various tunnels and aqueducts will be treated. Combined with the cost estimation development, several hypotheses concerning uncertainty prediction and correlation will be verified. First, the basis for researching this topic is described and the methods of estimation and uncertainty prediction are presented. Based upon the results of an extensive investigation into the occurrence of unexpected events, several hypotheses concerning unexpected events and correlations are verified. Other related topics that have been researched are also briefly mentioned. Finally the findings are contemplated in a larger context based upon which the conclusions are presented

Meint Boschloo; Meint Boschloo; Pieter Van Gelder; Han Vrijling; Han Vrijling

2001-01-01T23:59:59.000Z

153

Quantifying uncertainty in LCA-modelling of waste management systems  

SciTech Connect

Highlights: Black-Right-Pointing-Pointer Uncertainty in LCA-modelling of waste management is significant. Black-Right-Pointing-Pointer Model, scenario and parameter uncertainties contribute. Black-Right-Pointing-Pointer Sequential procedure for quantifying uncertainty is proposed. Black-Right-Pointing-Pointer Application of procedure is illustrated by a case-study. - Abstract: Uncertainty analysis in LCA studies has been subject to major progress over the last years. In the context of waste management, various methods have been implemented but a systematic method for uncertainty analysis of waste-LCA studies is lacking. The objective of this paper is (1) to present the sources of uncertainty specifically inherent to waste-LCA studies, (2) to select and apply several methods for uncertainty analysis and (3) to develop a general framework for quantitative uncertainty assessment of LCA of waste management systems. The suggested method is a sequence of four steps combining the selected methods: (Step 1) a sensitivity analysis evaluating the sensitivities of the results with respect to the input uncertainties, (Step 2) an uncertainty propagation providing appropriate tools for representing uncertainties and calculating the overall uncertainty of the model results, (Step 3) an uncertainty contribution analysis quantifying the contribution of each parameter uncertainty to the final uncertainty and (Step 4) as a new approach, a combined sensitivity analysis providing a visualisation of the shift in the ranking of different options due to variations of selected key parameters. This tiered approach optimises the resources available to LCA practitioners by only propagating the most influential uncertainties.

Clavreul, Julie, E-mail: julc@env.dtu.dk [Department of Environmental Engineering, Technical University of Denmark, Miljoevej, Building 113, DK-2800 Kongens Lyngby (Denmark); Guyonnet, Dominique [BRGM, ENAG BRGM-School, BP 6009, 3 Avenue C. Guillemin, 45060 Orleans Cedex (France); Christensen, Thomas H. [Department of Environmental Engineering, Technical University of Denmark, Miljoevej, Building 113, DK-2800 Kongens Lyngby (Denmark)

2012-12-15T23:59:59.000Z

154

Building Regulatory Capacity for Change  

NLE Websites -- All DOE Office Websites (Extended Search)

Regulatory Capacity for Regulatory Capacity for Change PRESENTED BY Sarah Spencer-Workman, LEED AP July 27, 2011 "How to identify and review laws relevant to buildings and find places and opportunities that can accept changes that would support building energy objectives" Presentation Highlights Rulemaking Community and Stakeholder Identification To Support Code Changes Engagement: Building Capacity for Change Pay It Forward RULEMAKING : Plan Development and Research of Laws Relevant to Buildings How is it conducted? 'Landscape' Review Key words or phrases to look for Identify "home rule" jurisdictions Update and review cycle built in 'Landscape' Review:

155

Generalized Uncertainty Principle and Dark Matter  

DOE Green Energy (OSTI)

There have been proposals that primordial black hole remnants (BHRs) are the dark matter, but the idea is somewhat vague. Recently we argued that the generalized uncertainty principle (GUP) may prevent black holes from evaporating completely, in a similar way that the standard uncertainty principle prevents the hydrogen atom from collapsing. We further noted that the hybrid inflation model provides a plausible mechanism for production of large numbers of small black holes. Combining these we suggested that the dark matter might be composed of Planck-size BHRs. In this paper we briefly review these arguments, and discuss the reheating temperature as a result of black hole evaporation.

Chen, P

2004-01-13T23:59:59.000Z

156

Accounting for uncertainty in systematic bias in exposure estimates used in relative risk regression  

Science Conference Proceedings (OSTI)

In many epidemiologic studies addressing exposure-response relationships, sources of error that lead to systematic bias in exposure measurements are known to be present, but there is uncertainty in the magnitude and nature of the bias. Two approaches that allow this uncertainty to be reflected in confidence limits and other statistical inferences were developed, and are applicable to both cohort and case-control studies. The first approach is based on a numerical approximation to the likelihood ratio statistic, and the second uses computer simulations based on the score statistic. These approaches were applied to data from a cohort study of workers at the Hanford site (1944-86) exposed occupationally to external radiation; to combined data on workers exposed at Hanford, Oak Ridge National Laboratory, and Rocky Flats Weapons plant; and to artificial data sets created to examine the effects of varying sample size and the magnitude of the risk estimate. For the worker data, sampling uncertainty dominated and accounting for uncertainty in systematic bias did not greatly modify confidence limits. However, with increased sample size, accounting for these uncertainties became more important, and is recommended when there is interest in comparing or combining results from different studies.

Gilbert, E.S.

1995-12-01T23:59:59.000Z

157

Uncertainty in in-place filter test results  

SciTech Connect

Some benefits of accounting for uncertainty in in-place filter test results are explored. Information the test results provide relative to system performance acceptance limits is evaluated in terms of test result uncertainty. An expression for test result uncertainty is used to estimate uncertainty in in-place filter tests on an example air cleaning system. Modifications to the system test geometry are evaluated in terms of effects on test result uncertainty.

Scripsick, R.C.; Beckman, R.J.; Mokler, B.V.

1996-12-31T23:59:59.000Z

158

Requirements Uncertainty in a Software Product Line  

Science Conference Proceedings (OSTI)

A complex system's requirements almost always remain uncertain late into its software development. In gas turbine engine control systems at Rolls-Royce, for a traditional project (non-product line) typically 50% of requirements will change between Critical ... Keywords: Requirements, Uncertainty, Software Product Lines

Andy J. Nolan; Silvia Abrahao; Paul C. Clements; Andy Pickard

2011-08-01T23:59:59.000Z

159

Uncertainty analysis of well test data  

E-Print Network (OSTI)

During a well test a transient pressure response is created by a temporary change in production rate. The well response is usually monitored during a relatively short period of time, depending upon the test objectives. Reservoir properties are determined from well test data via an inverse problem approach. Uncertainty is inherent in any nonlinear inverse problem. Unfortunately, well test interpretation suffers particularly from a variety of uncertainties that, when combined, reduce the confidence that can be associated with the estimated reservoir properties. The specific factors that have been analyzed in this work are: 1. Pressure noise (random noise) 2. Pressure drift (systematic variation) 3. Rate history effects Our work is based on the analysis of the effects of random pressure noise, the drift error, and the rate history on the estimation of typical reservoir parameters for two common reservoir models: A vertical well with a constant wellbore storage and skin in a homogeneous reservoir. A vertical well with a finite conductivity vertical fracture including wellbore effects in a homogeneous reservoir. This work represents a sensitivity study of the impact of pressure and rate uncertainty on parameter estimation and the confidence intervals associated with these results. In this work we statistically analyze the calculated reservoir parameters to quantify the impact of pressure and rate uncertainty on them.

Merad, Mohamed Belgacem

2002-01-01T23:59:59.000Z

160

Identification and Characterization of Prokaryotic Regulatory Networks: Final Report  

Science Conference Proceedings (OSTI)

We have completed our characterization of both the transcriptional regulatory network and post-transcriptional regulatory motifs in Shewanella.

Gary D Stormo

2012-10-05T23:59:59.000Z

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


161

VARI-RO (TM) Desalting Pilot Plant Testing and Evaluation  

Science Conference Proceedings (OSTI)

VARI-RO(TM) is a promising pumping and energy recovery technology for the reverse osmosis (RO) desalination process. VARI-RO can offer certain operational benefits over existing RO methods; for example, it may reduce energy consumption.

1999-09-27T23:59:59.000Z

162

Software: VARI3D - Nuclear Engineering Division (Argonne)  

NLE Websites -- All DOE Office Websites (Extended Search)

OutLoud on Nuclear Energy Argonne Energy Showcase 2012 Software VARI3D (Perturbation Theory Codes) Bookmark and Share Standard Code Description VARI3D is a generalized...

163

Confronting mass-varying neutrinos with MiniBooNE  

E-Print Network (OSTI)

We study the proposal that mass-varying neutrinos could provide an explanation for the LSND signal for \\bar\

V. Barger; D. Marfatia; K. Whisnant

2005-09-16T23:59:59.000Z

164

Interpolation Uncertainties Across the ARM SGP Area  

NLE Websites -- All DOE Office Websites (Extended Search)

Interpolation Uncertainties Across the ARM SGP Area Interpolation Uncertainties Across the ARM SGP Area J. E. Christy, C. N. Long, and T. R. Shippert Pacific Northwest National Laboratory Richland, Washington Interpolation Grids Across the SGP Network Area The U.S. Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Program operates a network of surface radiation measurement sites across north central Oklahoma and south central Kansas. This Southern Great Plains (SGP) network consists of 21 sites unevenly spaced from 95.5 to 99.5 degrees west longitude, and from 34.5 to 38.5 degrees north latitude. We use the technique outlined by Long and Ackerman (2000) and Long et al. (1999) to infer continuous estimates of clear-sky downwelling shortwave (SW) irradiance, SW cloud effect, and daylight fractional sky cover for each

165

Microsoft Word - Price Uncertainty Supplement.doc  

Gasoline and Diesel Fuel Update (EIA)

0 0 1 July 2010 Short-Term Energy Outlook Energy Price Volatility and Forecast Uncertainty 1 July 7, 2010 Release Crude Oil Prices. WTI crude oil spot prices averaged $75.34 per barrel in June 2010 ($1.60 per barrel above the prior month's average), close to the $76 per barrel projected in the forecast in last month's Outlook. EIA projects WTI prices will average about $79 per barrel over the second half of this year and rise to $84 by the end of next year (West Texas Intermediate Crude Oil Price Chart). Energy price forecasts are highly uncertain, as history has shown (Energy Price Volatility and Forecast Uncertainty). WTI futures for September 2010 delivery for the

166

Quantum Gravitational Uncertainty of Transverse Position  

E-Print Network (OSTI)

It is argued that holographic bounds on the information content of spacetime might be directly measurable. A new uncertainty principle is conjectured to arise from quantum indeterminacy of nearly flat spacetime: Angular orientations of null trajectories of spatial length L are uncertain, with standard deviation in each transverse direction \\Delta \\theta> \\sqrt{l_P/L}, where l_p denotes the Planck length. It is shown that this angular uncertainty corresponds to the information loss and nonlocality that occur if 3+1-D spacetime has a holographic dual description in terms of Planck-scale waves on a 2+1D screen with encoding close to the Planck diffraction limit, and agrees with covariant holographic entropy bounds on total number of degrees of freedom. The spectrum and spatial structure of predicted quantum-gravitational ``holographic noise'' are estimated to be directly measurable over a broad range of frequencies using interferometers with current technology.

Craig J. Hogan

2007-03-29T23:59:59.000Z

167

Uncertainty of the Solar Neutrino Energy Spectrum  

E-Print Network (OSTI)

The solar neutrino spectrum measured by the Super-Kamiokande shows an excess in high energy bins, which may be explained by vacuum oscillation solution or $hep$ neutrino effect. Here we reconsider an uncertainty of the data caused by the tail of the energy resolution function. Events observed at energy higher than 13.5 MeV are induced by the tail of the resolution. At Super-Kamiokande precision level this uncertainty is no more than few percent within a Gaussian tail. But a power-law decay tail at 3 $\\sigma$ results considerable excesses in these bins, which may be another possible explanation of the anomaly in 708d(825d) data.

Q. Y. Liu

1999-06-30T23:59:59.000Z

168

Global Warming Mitigation Investments Optimized under Uncertainty  

NLE Websites -- All DOE Office Websites (Extended Search)

Global Warming Mitigation Investments Optimized under Uncertainty Global Warming Mitigation Investments Optimized under Uncertainty Speaker(s): Hermann Held Date: July 9, 2010 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Thomas McKone The Copenhagen Accord (2009) recognizes that 'the increase in global temperature should be below 2 degrees Celsius' (compared to pre-industrial levels, '2° target'). In recent years, energy economics have derived welfare-optimal investment streams into low-emission energy mixes and associated costs. According to our analyses, auxiliary targets that are in line with the 2° target could be achieved at relatively low costs if energy investments were triggered rather swiftly. While such analyses assume 'perfect foresight' of a benevolent 'social planner', an accompanying suite of experiments explicitly

169

Reliability and the Federal Energy Regulatory Commission  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

and the Federal Reliability and the Federal and the Federal Reliability and the Federal Energy Regulatory Energy Regulatory Commission Commission Michael Peters Michael Peters Energy Infrastructure & Cyber Security Advisor Energy Infrastructure & Cyber Security Advisor Federal Energy Regulatory Commission Federal Energy Regulatory Commission 202 202 - - 502 502 - - 8461 8461 Michael.Peters@FERC.GOV Michael.Peters@FERC.GOV The views expressed in this The views expressed in this presentation do not represent the presentation do not represent the views of the Federal Energy views of the Federal Energy Regulatory Commission or the United Regulatory Commission or the United States. States. These views are the personal opinion These views are the personal opinion of Mike Peters!!!! of Mike Peters!!!! ☺ ☺ ☺ ☺ ☺ ☺

170

Information-Disturbance theorem and Uncertainty Relation  

E-Print Network (OSTI)

It has been shown that Information-Disturbance theorem can play an important role in security proof of quantum cryptography. The theorem is by itself interesting since it can be regarded as an information theoretic version of uncertainty principle. It, however, has been able to treat restricted situations. In this paper, the restriction on the source is abandoned, and a general information-disturbance theorem is obtained. The theorem relates information gain by Eve with information gain by Bob.

Takayuki Miyadera; Hideki Imai

2007-07-31T23:59:59.000Z

171

Probabilistic accident consequence uncertainty analysis -- Late health effects uncertain assessment. Volume 2: Appendices  

SciTech Connect

The development of two new probabilistic accident consequence codes, MACCS and COSYMA, was completed in 1990. These codes estimate the consequence from the accidental releases of radiological material from hypothesized accidents at nuclear installations. In 1991, the US Nuclear Regulatory Commission and the Commission of the European Communities began cosponsoring a joint uncertainty analysis of the two codes. The ultimate objective of this joint effort was to systematically develop credible and traceable uncertainty distributions for the respective code input variables. A formal expert judgment elicitation and evaluation process was identified as the best technology available for developing a library of uncertainty distributions for these consequence parameters. This report focuses on the results of the study to develop distribution for variables related to the MACCS and COSYMA late health effects models. This volume contains appendices that include (1) a summary of the MACCS and COSYMA consequence codes, (2) the elicitation questionnaires and case structures, (3) the rationales and results for the expert panel on late health effects, (4) short biographies of the experts, and (5) the aggregated results of their responses.

Little, M.P.; Muirhead, C.R. [National Radiological Protection Board (United Kingdom); Goossens, L.H.J.; Kraan, B.C.P.; Cooke, R.M. [Delft Univ. of Technology (Netherlands); Harper, F.T. [Sandia National Labs., Albuquerque, NM (United States); Hora, S.C. [Univ. of Hawaii, Hilo, HI (United States)

1997-12-01T23:59:59.000Z

172

Environmental regulatory update table, March 1989  

Science Conference Proceedings (OSTI)

The Environmental Regulatory Update Table provides information on regulatory initiatives of interest to DOE operations and contractor staff with environmental management responsibilities. The table is updated each month with information from the Federal Register and other sources, including direct contact with regulatory agencies. Each table entry provides a chronological record of the rulemaking process for that initiative with an abstract and a projection of further action.

Houlberg, L.; Langston, M.E.; Nikbakht, A.; Salk, M.S.

1989-04-01T23:59:59.000Z

173

Environmental Regulatory Update Table, December 1989  

Science Conference Proceedings (OSTI)

The Environmental Regulatory Update Table provides information on regulatory initiatives of interest to DOE operations and contractor staff with environmental management responsibilities. The table is updated each month with information from the Federal Register and other sources, including direct contact with regulatory agencies. Each table entry provides a chronological record of the rulemaking process for that initiative with an abstract and a projection of further action.

Houlbert, L.M.; Langston, M.E. (Tennessee Univ., Knoxville, TN (USA)); Nikbakht, A.; Salk, M.S. (Oak Ridge National Lab., TN (USA))

1990-01-01T23:59:59.000Z

174

Environmental Regulatory Update Table, April 1989  

SciTech Connect

The Environmental Regulatory Update Table provides information on regulatory initiatives of interest to DOE operations and contractor staff with environmental management responsibilities. The table is updated each month with information from the Federal Register and other sources, including direct contact with regulatory agencies. Each table entry provides a chronological record of the rulemaking process for that initiative with an abstract and a projection of further action.

Houlberg, L.; Langston, M.E.; Nikbakht, A.; Salk, M.S.

1989-05-01T23:59:59.000Z

175

Environmental Regulatory Update Table, September 1991  

SciTech Connect

The Environmental Regulatory Update Table provides information on regulatory initiatives of interest to DOE operations and contractor staff with environmental management responsibilities. The table is updated each month with information from the Federal Register and other sources, including direct contact with regulatory agencies. Each table entry provides a chronological record of the rulemaking process for that initiative with an abstract and a projection of further action.

Houlberg, L.M.; Hawkins, G.T.; Salk, M.S.

1991-10-01T23:59:59.000Z

176

Managing Carbon Regulatory Risk in Utility Resource Planning: Current  

NLE Websites -- All DOE Office Websites (Extended Search)

Managing Carbon Regulatory Risk in Utility Resource Planning: Current Managing Carbon Regulatory Risk in Utility Resource Planning: Current Practices in the Western United States Title Managing Carbon Regulatory Risk in Utility Resource Planning: Current Practices in the Western United States Publication Type Report Year of Publication 2009 Authors Barbose, Galen L., Ryan H. Wiser, Amol Phadke, and Charles A. Goldman Pagination 28 Date Published 03/2009 Publisher LBNL City Berkeley Keywords carbon emissions, electric utilities, electricity markets and policy group, energy analysis and environmental impacts department, power system planning Abstract Concerns about global climate change have substantially increased the likelihood that future policy will seek to minimize carbon dioxide emissions. As such, even today, electric utilities are making resource planning and investment decisions that consider the possible implications of these future carbon regulations. In this article, we examine the manner in which utilities assess the financial risks associated with future carbon regulations within their long-term resource plans. We base our analysis on a review of the most recent resource plans filed by fifteen electric utilities in the Western United States. Virtually all of these utilities made some effort to quantitatively evaluate the potential cost of future carbon regulations when analyzing alternate supply- and demandside resource options for meeting customer load. Even without Federal climate regulation in the U.S., the prospect of that regulation is already having an impact on utility decision-making and resource choices. That said, the methods and assumptions used by utilities to analyze carbon regulatory risk, and the impact of that analysis on their choice of a particular resource strategy, vary considerably, revealing a number of opportunities for analytic improvement. Though our review focuses on a subset of U.S. electric utilities, this work holds implications for all electric utilities and energy policymakers

177

Vehicle Technologies Office: EPAct Transportation Regulatory Activities  

NLE Websites -- All DOE Office Websites (Extended Search)

EPAct Transportation Regulatory Activities EPAct Transportation Regulatory Activities The U.S. Department of Energy's (DOE) Vehicle Technologies Office manages several Energy Policy Act (EPAct) transportation regulatory activities that aim to reduce U.S. petroleum consumption by building a core market for alternative fuel vehicles (AFVs). EPAct directed DOE to develop the Alternative Fuel Transportation Program to manage regulatory activities, including the State and Alternative Fuel Provider Fleet Program, which requires covered fleets to reduce petroleum consumption through one of two compliance methods. Features Discover how National Grid meets EPAct requirements Read the latest newsletter Learn about Alternative Compliance Quick Links Standard Compliance Reporting Standard Compliance Alternative Compliance

178

Coal Mining Regulatory and Reclamation Act (Massachusetts) |...  

Open Energy Info (EERE)

Data Page Edit with form History Share this page on Facebook icon Twitter icon Coal Mining Regulatory and Reclamation Act (Massachusetts) This is the approved revision of...

179

Other Regulatory Efforts | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

2012 Section 1222 of the Energy Policy Act 2005 International Electricity Regulation Presidential Permits Export Authorizations Pending Applications NEPA Other Regulatory...

180

Evaluating Uncertainties in the Projection of Future Drought  

Science Conference Proceedings (OSTI)

The uncertainty in the projection of future drought occurrence was explored for four different drought indices using two model ensembles. The first ensemble expresses uncertainty in the parameter space of the third Hadley Centre climate model, ...

Eleanor J. Burke; Simon J. Brown

2008-04-01T23:59:59.000Z

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


181

Estimates of Uncertainty in Predictions of Global Mean Surface Temperature  

Science Conference Proceedings (OSTI)

A method for estimating uncertainty in future climate change is discussed in detail and applied to predictions of global mean temperature change. The method uses optimal fingerprinting to make estimates of uncertainty in model simulations of ...

J. A. Kettleborough; B. B. B. Booth; P. A. Stott; M. R. Allen

2007-03-01T23:59:59.000Z

182

Treatment of measurement uncertainties at the power burst facility  

SciTech Connect

The treatment of measurement uncertainty at the Power Burst Facility provides a means of improving data integrity as well as meeting standard practice reporting requirements. This is accomplished by performing the uncertainty analysis in two parts, test independent uncertainty analysis and test dependent uncertainty analysis. The test independent uncertainty analysis is performed on instrumentation used repeatedly from one test to the next, and does not have to be repeated for each test except for improved or new types of instruments. A test dependent uncertainty analysis is performed on each test based on the test independent uncertainties modified as required by test specifications, experiment fixture design, and historical performance of instruments on similar tests. The methodology for performing uncertainty analysis based on the National Bureau of Standards method is reviewed with examples applied to nuclear instrumentation.

Meyer, L.C.

1980-01-01T23:59:59.000Z

183

Ultrasonic liquid-level detector for varying temperature and pressure environments  

DOE Patents (OSTI)

An ultrasonic liquid level detector for use in varying temperature and pressure environments, such as a pressurized water nuclear reactor vessel, is provided. The detector employs ultrasonic extensional and torsional waves launched in a multiplexed alternating sequence into a common sensor. The sensor is a rectangular cross section stainless steel rod which extends into the liquid medium whose level is to be detected. The sensor temperature derived from the extensional wave velocity measurements is used to compensate for the temperature dependence of the torsional wave velocity measurements which are also level dependent. The torsional wave velocity measurements of a multiple reflection sensor then provide a measurement of liquid level over a range of several meters with a small uncertainty over a temperature range of 20 to 250/sup 0/C and pressures up to 15 MPa.

Anderson, R.L.; Miller, G.N.

1981-10-26T23:59:59.000Z

184

FORMALISM FOR INCLUSION OF MEASURED REACTION CROSS SECTIONS IN STELLAR RATES INCLUDING UNCERTAINTIES AND ITS APPLICATION TO NEUTRON CAPTURE IN THE s-PROCESS  

Science Conference Proceedings (OSTI)

A general formalism to include experimental reaction cross sections into calculations of stellar rates is presented. It also allows us to assess the maximally possible reduction of uncertainties in the stellar rates by experiments. As an example for the application of the procedure, stellar neutron capture reactivities from KADoNiS v0.3 are revised and the remaining uncertainties shown. Many of the uncertainties in the stellar rates are larger than those obtained experimentally. This has important consequences for s-process models and the interpretation of meteoritic data because it allows the rates of some reactions to vary within a larger range than previously assumed.

Rauscher, Thomas [Department of Physics, University of Basel, CH-4056 Basel (Switzerland)

2012-08-10T23:59:59.000Z

185

Uncertainty Budgets for SOP 5: 2013-06-19  

Science Conference Proceedings (OSTI)

... DEVELOP an uncertainty budget based on concepts ... for participation using the Office of Weights and Measures Contact Management System. ...

2013-07-01T23:59:59.000Z

186

Uncertainty Budgets for SOP 4: 2013-06-17  

Science Conference Proceedings (OSTI)

... DEVELOP an uncertainty budget based on concepts ... for participation using the Office of Weights and Measures Contact Management System. ...

2013-07-01T23:59:59.000Z

187

Investment and Upgrade in Distributed Generation under Uncertainty  

E-Print Network (OSTI)

AS, Marnay, C. Distributed generation investment by aand Upgrade in Distributed Generation under Uncertaintyand Upgrade in Distributed Generation under Uncertainty ?

Siddiqui, Afzal

2008-01-01T23:59:59.000Z

188

Group decision making under uncertainty Type="Italic ...  

Science Conference Proceedings (OSTI)

JEAN LAINI~., MICHEL LE BRETON AND ALAIN TRANNOY. GROUP DECISION MAKING UNDER UNCERTAINTY. A NOTE ON THE AGGREGA TION.

189

Making Life and Death Decisions in Conditions of Uncertainty ...  

Science Conference Proceedings (OSTI)

Making Life and Death Decisions in Conditions of Uncertainty THE 2008 RUSSIAN-GEORGIAN WAR. Andrei Illarionov ...

2010-10-05T23:59:59.000Z

190

The NIST Reference on Constants, Units, and Uncertainty  

Science Conference Proceedings (OSTI)

The NIST Reference on Constants, Units and Uncertainty, Information at the foundation of modern science and technology from the Physical ...

191

Regulatory Burden RFI: Revitalization of DOE's Role as a Regulatory Watchdog  

Energy.gov (U.S. Department of Energy (DOE))

This Memorandum serves as an Executive Summary of Center for Regulatory Effectiveness’ (CRE’s) attached comments highlighting four issues:

192

Electrostatic generator/motor having rotors of varying ...  

Electrostatic generator/motor having rotors of varying thickness and a central stator electrically connected together into two groups United States Patent

193

Adoption of ENERGY STAR equipment varies among appliances ...  

U.S. Energy Information Administration (EIA)

Appliances with the ENERGY STAR® logo are intended to represent more-efficient options in the marketplace. The adoption of this more-efficient equipment can vary ...

194

Decay processes in an inhomogeneous time-varying plasma  

SciTech Connect

The decay of a homogeneous pump field in an inhomogeneous time-varying plasma into a plasma wave and an ion-acoustic wave is considered theoretically.

Andreev, A.A.; Fedorov, V.I.

1977-12-01T23:59:59.000Z

195

Electricity generation from non-hydro renewable sources varies ...  

U.S. Energy Information Administration (EIA)

May 2, 2012 Electricity generation from non-hydro renewable sources varies by state. Wind accounted for most non-hydro renewable generation in 2011, but sources of ...

196

IEP - Carbon Dioxide: Regulatory Drivers  

NLE Websites -- All DOE Office Websites (Extended Search)

IEP - Carbon Dioxide (CO2) Regulatory Drivers In July 7, 2009 testimony before the U.S. Senate Committee on Environment and Public Works, Secretary of Energy Steven Chu made the following statements:1 "...Overwhelming scientific evidence shows that carbon dioxide from human activity has increased the atmospheric level of CO2 by roughly 40 percent, a level one- third higher than any time in the last 800,000 years. There is also a consensus that CO2 and other greenhouse gas emissions have caused our planet to change. Already, we have seen the loss of about half of the summer arctic polar ice cap since the 1950s, a dramatically accelerating rise in sea level, and the loss of over two thousand cubic miles of glacial ice, not on geological time scales but over a mere hundred years.

197

UNITED STATES NUCLEAR REGULATORY COMMISSION  

Office of Legacy Management (LM)

WASHINGTON, 0. C. 20555 WASHINGTON, 0. C. 20555 AUG i 3 1979 ,,~---Y--*. FCAF:Wi3 )I 70-364 : i: SNM-414,jAmendment No. 3 --A Babcock and Wilcox Company Nuclear Materials Division ATTN: Mr. Michael A. Austin Manager, Technical Control 609 North Warren Avenue Apollo, Pennsylvania 15613 Gentiemen: (1 i' \ (. \ In accordance with your application dated June 18, 1979, and pursuant to Title 10, Code of Federal Regulations, Part 70, Materials License SNM-414 is hereby amended to: 1. Delete the function of the Regulatory Projects Coordinator, and 2. Alter the experience requirements for the function of Licensing and Nuclear Safety Specialist. Replacement pages for the license and condition section of the application are attached. Included are changes to License SNM-414 pages to reflect

198

United States Nuclear Regulatory Commission  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

qU oSoLTJRC qU oSoLTJRC United States Nuclear Regulatory Commission Protecting People and the Environment NUREG-1872, Vol. 2 HudcD [jE©wftamfsýýpc Wafm(M oran EA Office of New Reactors AVAILABILITY OF REFERENCE MATERIALS IN NRC PUBLICATIONS NRC Reference Material As of November 1999, you may electronically access NUREG-series publications and other NRC records at NRC's Public Electronic Reading Room at http:t/www.nrc..ov/reading-rm.html. Publicly released records include, to name a few, NUREG-series publications; Federal Register notices; applicant, licensee, and vendor documents and correspondence; NRC correspondence and internal memoranda; bulletins and information notices; inspection and investigative reports; licensee event reports; and Commission papers and their attachments.

199

Probabilistic surfaces: point based primitives to show surface uncertainty  

Science Conference Proceedings (OSTI)

Efficient and informative visualization of surfaces with uncertainties is an important topic with many applications in science and engineering. Examples include environmental pollution borderline identification, identification of the limits of an oil ... Keywords: points as display primitives, uncertainty, visualizing surface uncertainty

Gevorg Grigoryan; Penny Rheingans

2002-10-01T23:59:59.000Z

200

Visualization of gridded scalar data with uncertainty in geosciences  

Science Conference Proceedings (OSTI)

Characterization of the earth's subsurface involves the construction of 3D models from sparse data and so leads to simulation results that involve some degree of uncertainty. This uncertainty is often neglected in the subsequent visualization, due to ... Keywords: 3D, Monte carlo simulation, Scalar fields, Uncertainty, Visualisation, Visualization

Björn Zehner; Norihiro Watanabe; Olaf Kolditz

2010-10-01T23:59:59.000Z

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


201

State of the Science FACT SHEET Weather Forecast Uncertainty  

E-Print Network (OSTI)

State of the Science FACT SHEET Weather Forecast Uncertainty December, 2009 This document represents the state of the science of quantifying and communicating weather forecast uncertainty. Decisions can be improved by better understanding the uncertainties in the weather forecasts. NOAA seeks to help

202

Regulatory incentives and prudence reviews  

Science Conference Proceedings (OSTI)

During the past several years, numerous large prudence case disallowances have occurred throughout the United States. Many of these cases concerned the construction of large nuclear facilities. Disallowances occurred despite the presence of incentive mechanisms that were used by various state public utility commissions. The regulatory model used during that period assumed that incentives were useful. Incentives were often viewed, however, as an exploratory exercise that might provide benefits. Still, the real mechanism used to protect ratepayers was the classical prudence case. And, as we saw during the 1980s, such cases were frequently used to prohibit utilities from passing unreasonable costs on to ratepayers. To avoid the system breakdowns and the resulting prudence cases, utilities and regulators must develop incentives that affect utilities' behavior to provide an optimal level of safe and adequate service at the lowest reasonable cost. If the incentives are simply viewed as an exotic regulatory mechanism, without being properly understood and implemented from an operational perspective at the utilities, they may not produce the desired outcome. In some instances they may be irrelevant to the final result. Several relatively new incentive mechanisms are promising. These include incentives that provide utilities with increased profits for implementing good customer-service programs or for achieving good performance in demand-side management (DSM) programs. Those incentives usually link a monetary reward or penalty in the form of a change to the earned rate of return to specific actions, such as the customer complaint rate for the utility or its success in installing certain DSM devices. These are promising because they relate to discrete events that can be easily understood by utility management and measured by regulators.

Bronner, K.M.

1993-12-01T23:59:59.000Z

203

Methodology for characterizing modeling and discretization uncertainties in computational simulation  

SciTech Connect

This research effort focuses on methodology for quantifying the effects of model uncertainty and discretization error on computational modeling and simulation. The work is directed towards developing methodologies which treat model form assumptions within an overall framework for uncertainty quantification, for the purpose of developing estimates of total prediction uncertainty. The present effort consists of work in three areas: framework development for sources of uncertainty and error in the modeling and simulation process which impact model structure; model uncertainty assessment and propagation through Bayesian inference methods; and discretization error estimation within the context of non-deterministic analysis.

ALVIN,KENNETH F.; OBERKAMPF,WILLIAM L.; RUTHERFORD,BRIAN M.; DIEGERT,KATHLEEN V.

2000-03-01T23:59:59.000Z

204

A Bayesian approach to simultaneously quantify assignments and linguistic uncertainty  

SciTech Connect

Subject matter expert assessments can include both assignment and linguistic uncertainty. This paper examines assessments containing linguistic uncertainty associated with a qualitative description of a specific state of interest and the assignment uncertainty associated with assigning a qualitative value to that state. A Bayesian approach is examined to simultaneously quantify both assignment and linguistic uncertainty in the posterior probability. The approach is applied to a simplified damage assessment model involving both assignment and linguistic uncertainty. The utility of the approach and the conditions under which the approach is feasible are examined and identified.

Chavez, Gregory M [Los Alamos National Laboratory; Booker, Jane M [BOOKER SCIENTIFIC FREDERICKSBURG; Ross, Timothy J [UNM

2010-10-07T23:59:59.000Z

205

Modeling Uncertainties in Aggregated Thermostatically Controlled Loads Using a State Queueing Model  

SciTech Connect

Abstract — To study the impacts of price responsive demand on the electric power system, requires better load models. This paper discusses the modeling of uncertainties in aggregated thermostatically controlled loads using a state queueing (SQ) model. The cycling times of thermostatically controlled appliances (TCAs) vary with the TCA types and sizes, as well as the ambient temperatures. The random consumption of consumers, which besides phase shifting, shortens or prolongs a specific TCA cycling period, introduces another degree of uncertainty. By modifying the state transition matrix, these random factors can be taken into account in a discrete SQ model. The impacts of considering load diversity in the SQ model on simulating TCA setpoint response are also studied.

Lu, Ning; Chassin, David P.; Widergren, Steven E.

2005-05-01T23:59:59.000Z

206

Geothermal Regulatory Roadmap | OpenEI Community  

Open Energy Info (EERE)

Geothermal Regulatory Roadmap Geothermal Regulatory Roadmap Home > Geothermal Regulatory Roadmap > Posts by term > Geothermal Regulatory Roadmap Content Group Activity By term Q & A Feeds Term: flora and fauna Type Term Title Author Replies Last Post sort icon Blog entry flora and fauna Texas Legal Review Alevine 29 Jul 2013 - 14:46 Groups Menu You must login in order to post into this group. Recent content Geothermal NEPA Workshop at GRC New Robust References! Geothermal Regulatory Roadmap featured on NREL Now Texas Legal Review GRR 3rd Quarter - Stakeholder Update Meeting more Group members (12) Managers: Kyoung Recent members: AfifaAwan Dklein2012 Jweers AGill Agentile Kwitherbee Kjking Payne Dhoefner Twnrel Alevine 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load)

207

Geothermal Regulatory Roadmap | OpenEI Community  

Open Energy Info (EERE)

Geothermal Regulatory Roadmap Geothermal Regulatory Roadmap Home > Geothermal Regulatory Roadmap > Posts by term > Geothermal Regulatory Roadmap Content Group Activity By term Q & A Feeds Term: Categorical Exclusions Type Term Title Author Replies Last Post sort icon Blog entry Categorical Exclusions Geothermal NEPA Workshop at GRC Kyoung 14 Oct 2013 - 20:19 Blog entry Categorical Exclusions GRR 3rd Quarter - Stakeholder Update Meeting Kyoung 9 Jul 2013 - 20:57 Blog entry Categorical Exclusions GRR 2nd Quarter - Stakeholder Update Meeting Kyoung 2 May 2013 - 14:06 Groups Menu You must login in order to post into this group. Recent content Geothermal NEPA Workshop at GRC New Robust References! Geothermal Regulatory Roadmap featured on NREL Now Texas Legal Review

208

Geothermal Regulatory Roadmap | OpenEI Community  

Open Energy Info (EERE)

Geothermal Regulatory Roadmap Geothermal Regulatory Roadmap Home > Geothermal Regulatory Roadmap > Posts by term > Geothermal Regulatory Roadmap Content Group Activity By term Q & A Feeds Term: EA Type Term Title Author Replies Last Post sort icon Blog entry EA Geothermal NEPA Workshop at GRC Kyoung 14 Oct 2013 - 20:19 Groups Menu You must login in order to post into this group. Recent content Geothermal NEPA Workshop at GRC New Robust References! Geothermal Regulatory Roadmap featured on NREL Now Texas Legal Review GRR 3rd Quarter - Stakeholder Update Meeting more Group members (12) Managers: Kyoung Recent members: AfifaAwan Dklein2012 Jweers AGill Agentile Kwitherbee Kjking Payne Dhoefner Twnrel Alevine 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation:

209

Geothermal Regulatory Roadmap | OpenEI Community  

Open Energy Info (EERE)

Geothermal Regulatory Roadmap Geothermal Regulatory Roadmap Home > Geothermal Regulatory Roadmap > Posts by term > Geothermal Regulatory Roadmap Content Group Activity By term Q & A Feeds Term: Colorado Type Term Title Author Replies Last Post sort icon Blog entry Colorado Colorado Meeting Kyoung 21 Mar 2013 - 10:24 Blog entry Colorado Happy New Year! Kyoung 21 Mar 2013 - 10:09 Groups Menu You must login in order to post into this group. Recent content Geothermal NEPA Workshop at GRC New Robust References! Geothermal Regulatory Roadmap featured on NREL Now Texas Legal Review GRR 3rd Quarter - Stakeholder Update Meeting more Group members (12) Managers: Kyoung Recent members: AfifaAwan Dklein2012 Jweers AGill Agentile Kwitherbee Kjking Payne Dhoefner Twnrel Alevine 429 Throttled (bot load)

210

Geothermal Regulatory Roadmap | OpenEI Community  

Open Energy Info (EERE)

Geothermal Regulatory Roadmap Geothermal Regulatory Roadmap Home > Geothermal Regulatory Roadmap > Posts by term > Geothermal Regulatory Roadmap Content Group Activity By term Q & A Feeds Term: FY12 Type Term Title Author Replies Last Post sort icon Blog entry FY12 Thank You! Kyoung 21 Mar 2013 - 08:40 Groups Menu You must login in order to post into this group. Recent content Geothermal NEPA Workshop at GRC New Robust References! Geothermal Regulatory Roadmap featured on NREL Now Texas Legal Review GRR 3rd Quarter - Stakeholder Update Meeting more Group members (12) Managers: Kyoung Recent members: AfifaAwan Dklein2012 Jweers AGill Agentile Kwitherbee Kjking Payne Dhoefner Twnrel Alevine 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142253755

211

Geothermal Regulatory Roadmap | OpenEI Community  

Open Energy Info (EERE)

Geothermal Regulatory Roadmap Geothermal Regulatory Roadmap Home > Geothermal Regulatory Roadmap > Posts by term > Geothermal Regulatory Roadmap Content Group Activity By term Q & A Feeds Term: CX Type Term Title Author Replies Last Post sort icon Blog entry CX Geothermal NEPA Workshop at GRC Kyoung 14 Oct 2013 - 20:19 Groups Menu You must login in order to post into this group. Recent content Geothermal NEPA Workshop at GRC New Robust References! Geothermal Regulatory Roadmap featured on NREL Now Texas Legal Review GRR 3rd Quarter - Stakeholder Update Meeting more Group members (12) Managers: Kyoung Recent members: AfifaAwan Dklein2012 Jweers AGill Agentile Kwitherbee Kjking Payne Dhoefner Twnrel Alevine 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation:

212

Geothermal Regulatory Roadmap | OpenEI Community  

Open Energy Info (EERE)

Geothermal Regulatory Roadmap Geothermal Regulatory Roadmap Home > Geothermal Regulatory Roadmap > Posts by term > Geothermal Regulatory Roadmap Content Group Activity By term Q & A Feeds Term: feedback Type Term Title Author Replies Last Post sort icon Blog entry feedback Geothermal Stakeholder Feedback on the GRR Kyoung 21 Mar 2013 - 10:01 Groups Menu You must login in order to post into this group. Recent content Geothermal NEPA Workshop at GRC New Robust References! Geothermal Regulatory Roadmap featured on NREL Now Texas Legal Review GRR 3rd Quarter - Stakeholder Update Meeting more Group members (12) Managers: Kyoung Recent members: AfifaAwan Dklein2012 Jweers AGill Agentile Kwitherbee Kjking Payne Dhoefner Twnrel Alevine 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load)

213

Geothermal Regulatory Roadmap | OpenEI Community  

Open Energy Info (EERE)

Geothermal Regulatory Roadmap Geothermal Regulatory Roadmap Home > Geothermal Regulatory Roadmap > Posts by term > Geothermal Regulatory Roadmap Content Group Activity By term Q & A Feeds Term: Fish and Wildlife Type Term Title Author Replies Last Post sort icon Blog entry Fish and Wildlife Idaho Meeting #2 Kyoung 4 Sep 2012 - 21:36 Groups Menu You must login in order to post into this group. Recent content Geothermal NEPA Workshop at GRC New Robust References! Geothermal Regulatory Roadmap featured on NREL Now Texas Legal Review GRR 3rd Quarter - Stakeholder Update Meeting more Group members (12) Managers: Kyoung Recent members: AfifaAwan Dklein2012 Jweers AGill Agentile Kwitherbee Kjking Payne Dhoefner Twnrel Alevine 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load)

214

Geothermal Regulatory Roadmap | OpenEI Community  

Open Energy Info (EERE)

Geothermal Regulatory Roadmap Geothermal Regulatory Roadmap Home > Geothermal Regulatory Roadmap > Posts by term > Geothermal Regulatory Roadmap Content Group Activity By term Q & A Feeds Term: EIS Type Term Title Author Replies Last Post sort icon Blog entry EIS Geothermal NEPA Workshop at GRC Kyoung 14 Oct 2013 - 20:19 Groups Menu You must login in order to post into this group. Recent content Geothermal NEPA Workshop at GRC New Robust References! Geothermal Regulatory Roadmap featured on NREL Now Texas Legal Review GRR 3rd Quarter - Stakeholder Update Meeting more Group members (12) Managers: Kyoung Recent members: AfifaAwan Dklein2012 Jweers AGill Agentile Kwitherbee Kjking Payne Dhoefner Twnrel Alevine 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation:

215

Geothermal Regulatory Roadmap | OpenEI Community  

Open Energy Info (EERE)

Geothermal Regulatory Roadmap Geothermal Regulatory Roadmap Home > Geothermal Regulatory Roadmap > Posts by term > Geothermal Regulatory Roadmap Content Group Activity By term Q & A Feeds Term: Database Type Term Title Author Replies Last Post sort icon Blog entry Database Geothermal NEPA Workshop at GRC Kyoung 14 Oct 2013 - 20:19 Groups Menu You must login in order to post into this group. Recent content Geothermal NEPA Workshop at GRC New Robust References! Geothermal Regulatory Roadmap featured on NREL Now Texas Legal Review GRR 3rd Quarter - Stakeholder Update Meeting more Group members (12) Managers: Kyoung Recent members: AfifaAwan Dklein2012 Jweers AGill Agentile Kwitherbee Kjking Payne Dhoefner Twnrel Alevine 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load)

216

Geothermal Regulatory Roadmap | OpenEI Community  

Open Energy Info (EERE)

Geothermal Regulatory Roadmap Geothermal Regulatory Roadmap Home > Geothermal Regulatory Roadmap > Posts by term > Geothermal Regulatory Roadmap Content Group Activity By term Q & A Feeds Term: Cost Recovery Type Term Title Author Replies Last Post sort icon Blog entry Cost Recovery GRR 3rd Quarter - Stakeholder Update Meeting Kyoung 9 Jul 2013 - 20:57 Blog entry Cost Recovery GRR 2nd Quarter - Stakeholder Update Meeting Kyoung 2 May 2013 - 14:06 Groups Menu You must login in order to post into this group. Recent content Geothermal NEPA Workshop at GRC New Robust References! Geothermal Regulatory Roadmap featured on NREL Now Texas Legal Review GRR 3rd Quarter - Stakeholder Update Meeting more Group members (12) Managers: Kyoung Recent members: AfifaAwan Dklein2012 Jweers

217

Geothermal Regulatory Roadmap | OpenEI Community  

Open Energy Info (EERE)

Geothermal Regulatory Roadmap Geothermal Regulatory Roadmap Home > Geothermal Regulatory Roadmap > Posts by term > Geothermal Regulatory Roadmap Content Group Activity By term Q & A Feeds Term: analysis Type Term Title Author Replies Last Post sort icon Blog entry analysis GRR 3rd Quarter - Stakeholder Update Meeting Kyoung 9 Jul 2013 - 20:57 Blog entry analysis GRR 2nd Quarter - Stakeholder Update Meeting Kyoung 2 May 2013 - 14:06 Blog entry analysis Happy New Year! Kyoung 21 Mar 2013 - 10:09 Groups Menu You must login in order to post into this group. Recent content Geothermal NEPA Workshop at GRC New Robust References! Geothermal Regulatory Roadmap featured on NREL Now Texas Legal Review GRR 3rd Quarter - Stakeholder Update Meeting more Group members (12) Managers:

218

Geothermal Regulatory Roadmap | OpenEI Community  

Open Energy Info (EERE)

Geothermal Regulatory Roadmap Geothermal Regulatory Roadmap Home > Geothermal Regulatory Roadmap > Posts by term > Geothermal Regulatory Roadmap Content Group Activity By term Q & A Feeds Term: FWS Type Term Title Author Replies Last Post sort icon Blog entry FWS Idaho Meeting #2 Kyoung 4 Sep 2012 - 21:36 Groups Menu You must login in order to post into this group. Recent content Geothermal NEPA Workshop at GRC New Robust References! Geothermal Regulatory Roadmap featured on NREL Now Texas Legal Review GRR 3rd Quarter - Stakeholder Update Meeting more Group members (12) Managers: Kyoung Recent members: AfifaAwan Dklein2012 Jweers AGill Agentile Kwitherbee Kjking Payne Dhoefner Twnrel Alevine 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142253965

219

Geothermal Regulatory Roadmap | OpenEI Community  

Open Energy Info (EERE)

Geothermal Regulatory Roadmap Geothermal Regulatory Roadmap Home > Geothermal Regulatory Roadmap > Posts by term > Geothermal Regulatory Roadmap Content Group Activity By term Q & A Feeds Term: BHFS Type Term Title Author Replies Last Post sort icon Blog entry BHFS Texas Legal Review Alevine 29 Jul 2013 - 14:46 Blog entry BHFS Happy New Year! Kyoung 21 Mar 2013 - 10:09 Blog entry BHFS Legal Reviews are Underway Kyoung 21 Mar 2013 - 09:17 Groups Menu You must login in order to post into this group. Recent content Geothermal NEPA Workshop at GRC New Robust References! Geothermal Regulatory Roadmap featured on NREL Now Texas Legal Review GRR 3rd Quarter - Stakeholder Update Meeting more Group members (12) Managers: Kyoung Recent members: AfifaAwan Dklein2012 Jweers AGill

220

Risk communication: Uncertainties and the numbers game  

Science Conference Proceedings (OSTI)

The science of risk assessment seeks to characterize the potential risk in situations that may pose hazards to human health or the environment. However, the conclusions reached by the scientists and engineers are not an end in themselves - they are passed on to the involved companies, government agencies, legislators, and the public. All interested parties must then decide what to do with the information. Risk communication is a type of technical communication that involves some unique challenges. This paper first defines the relationships between risk assessment, risk management, and risk communication and then explores two issues in risk communication: addressing uncertainty and putting risk number into perspective.

Ortigara, M. [ed.

1995-08-30T23:59:59.000Z

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


221

Time varying voltage combustion control and diagnostics sensor  

DOE Patents (OSTI)

A time-varying voltage is applied to an electrode, or a pair of electrodes, of a sensor installed in a fuel nozzle disposed adjacent the combustion zone of a continuous combustion system, such as of the gas turbine engine type. The time-varying voltage induces a time-varying current in the flame which is measured and used to determine flame capacitance using AC electrical circuit analysis. Flame capacitance is used to accurately determine the position of the flame from the sensor and the fuel/air ratio. The fuel and/or air flow rate (s) is/are then adjusted to provide reduced flame instability problems such as flashback, combustion dynamics and lean blowout, as well as reduced emissions. The time-varying voltage may be an alternating voltage and the time-varying current may be an alternating current.

Chorpening, Benjamin T. (Morgantown, WV); Thornton, Jimmy D. (Morgantown, WV); Huckaby, E. David (Morgantown, WV); Fincham, William (Fairmont, WV)

2011-04-19T23:59:59.000Z

222

Uncertainty Budget Analysis for Dimensional Inspection Processes (U)  

SciTech Connect

This paper is intended to provide guidance and describe how to prepare an uncertainty analysis of a dimensional inspection process through the utilization of an uncertainty budget analysis. The uncertainty analysis is stated in the same methodology as that of the ISO GUM standard for calibration and testing. There is a specific distinction between how Type A and Type B uncertainty analysis is used in a general and specific process. All theory and applications are utilized to represent both a generalized approach to estimating measurement uncertainty and how to report and present these estimations for dimensional measurements in a dimensional inspection process. The analysis of this uncertainty budget shows that a well-controlled dimensional inspection process produces a conservative process uncertainty, which can be attributed to the necessary assumptions in place for best possible results.

Valdez, Lucas M. [Los Alamos National Laboratory

2012-07-26T23:59:59.000Z

223

Combined Estimation of Hydrogeologic Conceptual Model, Parameter, and Scenario Uncertainty with Application to Uranium Transport at the Hanford Site 300 Area  

SciTech Connect

This report to the Nuclear Regulatory Commission (NRC) describes the development and application of a methodology to systematically and quantitatively assess predictive uncertainty in groundwater flow and transport modeling that considers the combined impact of hydrogeologic uncertainties associated with the conceptual-mathematical basis of a model, model parameters, and the scenario to which the model is applied. The methodology is based on a n extension of a Maximum Likelihood implementation of Bayesian Model Averaging. Model uncertainty is represented by postulating a discrete set of alternative conceptual models for a site with associated prior model probabilities that reflect a belief about the relative plausibility of each model based on its apparent consistency with available knowledge and data. Posterior model probabilities are computed and parameter uncertainty is estimated by calibrating each model to observed system behavior; prior parameter estimates are optionally included. Scenario uncertainty is represented as a discrete set of alternative future conditions affecting boundary conditions, source/sink terms, or other aspects of the models, with associated prior scenario probabilities. A joint assessment of uncertainty results from combining model predictions computed under each scenario using as weight the posterior model and prior scenario probabilities. The uncertainty methodology was applied to modeling of groundwater flow and uranium transport at the Hanford Site 300 Area. Eight alternative models representing uncertainty in the hydrogeologic and geochemical properties as well as the temporal variability were considered. Two scenarios represent alternative future behavior of the Columbia River adjacent to the site were considered. The scenario alternatives were implemented in the models through the boundary conditions. Results demonstrate the feasibility of applying a comprehensive uncertainty assessment to large-scale, detailed groundwater flow and transport modeling and illustrate the benefits of the methodology I providing better estimates of predictive uncertiay8, quantitative results for use in assessing risk, and an improved understanding of the system behavior and the limitations of the models.

Meyer, Philip D.; Ye, Ming; Rockhold, Mark L.; Neuman, Shlomo P.; Cantrell, Kirk J.

2007-07-30T23:59:59.000Z

224

Quantum Gravitational Uncertainty of Transverse Position  

E-Print Network (OSTI)

It is argued that holographic bounds on the information content of spacetime might be directly measurable. A new holographic uncertainty principle is conjectured as a quantum property of nearly flat spacetime: The spatial wavefunction of a body at rest at position L relative to any observer has a width in directions transverse to L greater than Delta x_H=C(Ll_P)^{1/2}, where l_p denotes the Planck length and C is of the order of unity. It is shown that this angular uncertainty Delta theta > C (l_P/L)^{1/2} corresponds to the information loss and nonlocality that occur if 3D space has a holographic dual description in terms of Planck-scale waves on a 2D screen with encoding close to the diffraction limit, and agrees with covariant holographic entropy bounds on total number of degrees of freedom. It is estimated that this effect can be precisely tested by interferometers capable of transverse position measurements, such as the Laser Interferometer Space Antenna.

Hogan, Craig J

2007-01-01T23:59:59.000Z

225

Dealing with Uncertainties During Heat Exchanger Design  

E-Print Network (OSTI)

Over the last thirty years much progress has been made in heat exchanger design methodology. Even so, the design engineer still has to deal with a great deal of uncertainty. Whilst the methods used to predict heat transfer coefficients are now quite sophisticated and take account of many physical factors, the results they yield are still inaccurate. Physical property information is required for the estimation of heat transfer coefficients. Available information is often of dubious accuracy. Even given accurate properties modern methods for the predictions of tube-side heat transfer coefficient can be expected to have an accuracy of only ± 10%. For the shell-side, higher errors (say, around ±15%) can be expected. Perhaps worst of all, comes the specification of fouling resistance (the allowance made for the thermal resistance presented by dirt layers deposited on the heat exchanger tubes). In most instances there is little science or understanding behind the specification of these resistances. Traditionally there have been two approaches to dealing with these uncertainties: over-specification of fouling resistance; and, addition of 'design margin' (i.e. addition of extra surface area). There are cases in which both approaches are adopted. The engineer specifying the required duty provides a higher than necessary fouling resistance whilst the exchanger designer adds design margin! Both approaches result in 'over-design'.

Polley, G. T.; Pugh, S. J.

2001-05-01T23:59:59.000Z

226

Use of Quantitative Uncertainty Analysis to Support M&VDecisions in ESPCs  

SciTech Connect

Measurement and Verification (M&V) is a critical elementof an Energy Savings Performance Contract (ESPC) - without M&V, thereisno way to confirm that the projected savings in an ESPC are in factbeing realized. For any given energy conservation measure in an ESPC,there are usually several M&V choices, which will vary in terms ofmeasurement uncertainty, cost, and technical feasibility. Typically,M&V decisions are made almost solely based on engineering judgmentand experience, with little, if any, quantitative uncertainty analysis(QUA). This paper describes the results of a pilot project initiated bythe Department of Energy s Federal Energy Management Program to explorethe use of Monte-Carlo simulation to assess savings uncertainty andthereby augment the M&V decision-making process in ESPCs. The intentwas to use QUA selectively in combination with heuristic knowledge, inorder to obtain quantitative estimates of the savings uncertainty withoutthe burden of a comprehensive "bottoms-up" QUA. This approach was used toanalyze the savings uncertainty in an ESPC for a large federal agency.The QUA was seamlessly integrated into the ESPC development process andthe incremental effort was relatively small with user-friendly tools thatare commercially available. As the case study illustrates, in some casesthe QUA simply confirms intuitive or qualitative information, while inother cases, it provides insight that suggests revisiting the M&Vplan. The case study also showed that M&V decisions should beinformed by the portfolio risk diversification. By providing quantitativeuncertainty information, QUA can effectively augment the M&Vdecision-making process as well as the overall ESPC financialanalysis.

Mathew, Paul A.; Koehling, Erick; Kumar, Satish

2005-05-11T23:59:59.000Z

227

Summary Notes from 15 November 2007 Generic Technical Issue Discussion on Sensitivity and Uncertainty Analysis and Model Support  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

5 November 2007 Generic Technical Issue Discussion on 5 November 2007 Generic Technical Issue Discussion on Sensitivity and Uncertainty Analysis and Model Support Attendees: Representatives from Department of Energy-Headquarters (DOE-HQ) and the U.S. Nuclear Regulatory Commission (NRC) met at the DOE offices in Germantown, Maryland on 15 November 2007. Representatives from Department of Energy-Savannah River (DOE-SR) and the South Carolina Department of Health and Environmental Control (SCDHEC) participated in the meeting via a teleconference link. Discussion: DOE believes that based on the position papers provided prior to the meeting, DOE and NRC staff have many areas of agreement and no significant areas of disagreement with respect to the specific sensitivity and uncertainty analysis requirements articulated in the respective DOE and NRC requirements. The NRC

228

Regulatory analysis technical evaluation handbook. Final report  

Science Conference Proceedings (OSTI)

The purpose of this Handbook is to provide guidance to the regulatory analyst to promote preparation of quality regulatory analysis documents and to implement the policies of the Regulatory Analysis Guidelines of the US Nuclear Regulatory Commission (NUREG/BR-0058 Rev. 2). This Handbook expands upon policy concepts included in the NRC Guidelines and translates the six steps in preparing regulatory analyses into implementable methodologies for the analyst. It provides standardized methods of preparation and presentation of regulatory analyses, with the inclusion of input that will satisfy all backfit requirements and requirements of NRC`s Committee to Review Generic Requirements. Information on the objectives of the safety goal evaluation process and potential data sources for preparing a safety goal evaluation is also included. Consistent application of the methods provided here will result in more directly comparable analyses, thus aiding decision-makers in evaluating and comparing various regulatory actions. The handbook is being issued in loose-leaf format to facilitate revisions. NRC intends to periodically revise the handbook as new and improved guidance, data, and methods become available.

NONE

1997-01-01T23:59:59.000Z

229

Survey and Evaluate Uncertainty Quantification Methodologies  

SciTech Connect

The Carbon Capture Simulation Initiative (CCSI) is a partnership among national laboratories, industry and academic institutions that will develop and deploy state-of-the-art computational modeling and simulation tools to accelerate the commercialization of carbon capture technologies from discovery to development, demonstration, and ultimately the widespread deployment to hundreds of power plants. The CCSI Toolset will provide end users in industry with a comprehensive, integrated suite of scientifically validated models with uncertainty quantification, optimization, risk analysis and decision making capabilities. The CCSI Toolset will incorporate commercial and open-source software currently in use by industry and will also develop new software tools as necessary to fill technology gaps identified during execution of the project. The CCSI Toolset will (1) enable promising concepts to be more quickly identified through rapid computational screening of devices and processes; (2) reduce the time to design and troubleshoot new devices and processes; (3) quantify the technical risk in taking technology from laboratory-scale to commercial-scale; and (4) stabilize deployment costs more quickly by replacing some of the physical operational tests with virtual power plant simulations. The goal of CCSI is to deliver a toolset that can simulate the scale-up of a broad set of new carbon capture technologies from laboratory scale to full commercial scale. To provide a framework around which the toolset can be developed and demonstrated, we will focus on three Industrial Challenge Problems (ICPs) related to carbon capture technologies relevant to U.S. pulverized coal (PC) power plants. Post combustion capture by solid sorbents is the technology focus of the initial ICP (referred to as ICP A). The goal of the uncertainty quantification (UQ) task (Task 6) is to provide a set of capabilities to the user community for the quantification of uncertainties associated with the carbon capture processes. As such, we will develop, as needed and beyond existing capabilities, a suite of robust and efficient computational tools for UQ to be integrated into a CCSI UQ software framework.

Lin, Guang; Engel, David W.; Eslinger, Paul W.

2012-02-01T23:59:59.000Z

230

Supercritical Marine-Layer Flow along a Smoothly Varying Coastline  

Science Conference Proceedings (OSTI)

A model for hydraulically supercritical atmospheric marine-layer flow along a smoothly varying coastline is formulated and solved numerically. The model is motivated by a recent comparison of CODE observations to a simple hydraulic theory, which ...

R. M. Samelson

1992-09-01T23:59:59.000Z

231

Simulating Random Natural Variability in Time-Varying Atmospheric...  

NLE Websites -- All DOE Office Websites (Extended Search)

Natural Variability in Time-Varying Atmospheric Concentrations of Toxic Gas from Pipeline Ruptures Speaker(s): David J. Wilson Date: February 4, 2004 - 12:00pm Location: Bldg....

232

Characterizing Highly Varying Loads Associated With the Steel Industry  

Science Conference Proceedings (OSTI)

This study examines the quality of power and the effects of the highly varying load on automatic generation control at a utility service territory that contains 22% of the United States' steel manufacturing capability.

2003-12-31T23:59:59.000Z

233

Type B Cyclogenesis in a Zonally Varying Flow  

Science Conference Proceedings (OSTI)

It is hypothesized that surface cyclogenesis in the Northern Hemisphere storm-track regions can be described by the structural modification of baroclinic wave packets traversing a zonally varying flow field. We test this hypothesis using a ...

Jeffrey S. Whitaker; Albert Barcilon

1992-10-01T23:59:59.000Z

234

Department of Energy and Nuclear Regulatory Commission Increase...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Nuclear Regulatory Commission Increase Cooperation to Advance Global Nuclear Energy Partnership Department of Energy and Nuclear Regulatory Commission Increase Cooperation to...

235

Energy Praises the Nuclear Regulatory Commission Approval of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Praises the Nuclear Regulatory Commission Approval of the First United States Nuclear Plant Site in Over 30 Years Energy Praises the Nuclear Regulatory Commission Approval of the...

236

Edison Electric Institute (EEI) Reducing Regulatory Burden RFI...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Edison Electric Institute (EEI) Reducing Regulatory Burden RFI, 76 Fed. Reg. 75798 (Dec. 5, 2011) Edison Electric Institute (EEI) Reducing Regulatory Burden RFI, 76 Fed. Reg. 75798...

237

Edison Electric Institute (EEI) Reducing Regulatory Burden RFI...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Reducing Regulatory Burden RFI, 77 Fed. Reg. 28518 (May 15, 2012) Edison Electric Institute (EEI) Reducing Regulatory Burden RFI, 77 Fed. Reg. 28518 (May 15, 2012) The Edison...

238

Business Case Slide 34: Regulatory Constraints Analysis (ANL...  

NLE Websites -- All DOE Office Websites (Extended Search)

Regulatory Constraints Analysis (ANL) - Program Focus Program focus ANL will be preparing a risk analysis and regulatory plan for a specific case: use of DU in catalysts Enhance...

239

Changes related to "Coal Mining Regulatory and Reclamation Act...  

Open Energy Info (EERE)

Special page Share this page on Facebook icon Twitter icon Changes related to "Coal Mining Regulatory and Reclamation Act (Massachusetts)" Coal Mining Regulatory and...

240

Pages that link to "Coal Mining Regulatory and Reclamation Act...  

Open Energy Info (EERE)

Edit History Share this page on Facebook icon Twitter icon Pages that link to "Coal Mining Regulatory and Reclamation Act (Massachusetts)" Coal Mining Regulatory and...

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


241

Maryland-National Capital Building Industry Association Regulatory...  

NLE Websites -- All DOE Office Websites (Extended Search)

Maryland-National Capital Building Industry Association Regulatory Burden RFI (Federal Register August 8, 2012) Maryland-National Capital Building Industry Association Regulatory...

242

CRE_Response-DOE_Regulatory_Review_Request_for_Comments.pdf  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Center for Regulatory Effectiveness Center for Regulatory Effectiveness 1601 Connecticut Avenue, N.W. Washington, DC, 20009 Tel: (202) 265-2383 Fax: (202) 939-6969 secretary1@mbsdc.com www.TheCRE.com 1 REGULATORY REVIEW MEMORANDUM To: Department of Energy From: Jim Tozzi Subject: Regulatory Burden Request for Information Date: September 4, 2012 CC: Boris Bershteyn/Office of Information and Regulatory Affairs This Memorandum serves as an Executive Summary of Center for Regulatory Effectiveness' (CRE's) attached comments highlighting four issues: 1. DOE's Regulatory Coordination & Harmonization Responsibilities; 2. The Cumulative Costs of Regulations; 3. Retrospective Review of Regulations; and 4. Stakeholder Participation. DOE REGULATORY COORDINATION & HARMONIZATION RESPONSIBILITIES

243

External Time-Varying Fields and Electron Coherence  

E-Print Network (OSTI)

The effect of time-varying electromagnetic fields on electron coherence is investigated. A sinusoidal electromagnetic field produces a time varying Aharonov-Bohm phase. In a measurement of the interference pattern which averages over this phase, the effect is a loss of contrast. This is effectively a form of decoherence. We calculate the magnitude of this effect for various electromagnetic field configurations. The result seems to be sufficiently large to be observable.

Jen-Tsung Hsiang; L. H. Ford

2004-02-03T23:59:59.000Z

244

Microsoft Word - Price Uncertainty Supplement .docx  

Gasoline and Diesel Fuel Update (EIA)

1 1 1 January 2011 Short-Term Energy Outlook Energy Price Volatility and Forecast Uncertainty 1 January 11, 2011 Release Crude Oil Prices. West Texas Intermediate (WTI) crude oil spot prices averaged over $89 per barrel in December, about $5 per barrel higher than the November average. Expectations of higher oil demand, combined with unusually cold weather in both Europe and the U.S. Northeast, contributed to prices. EIA has raised the first quarter 2011 WTI spot price forecast by $8 per barrel from last monthʹs Outlook to $92 per barrel with a continuing rise to an average $99 per barrel in the fourth quarter of 2012. The projected annual average WTI price is $93 per barrel in 2011 and $98 per barrel in

245

Microsoft Word - Price Uncertainty Supplement.doc  

Gasoline and Diesel Fuel Update (EIA)

0 0 1 June 2010 Short-Term Energy Outlook Energy Price Volatility and Forecast Uncertainty 1 June 8, 2010 Release Crude Oil Prices. WTI crude oil spot prices averaged less than $74 per barrel in May 2010, almost $11 per barrel below the prior month's average and $7 per barrel lower than forecast in last month's Outlook. EIA projects WTI prices will average about $79 per barrel over the second half of this year and rise to $84 by the end of next year, a decrease of about $3 per barrel from the previous Outlook (West Texas Intermediate Crude Oil Price Chart). Energy price forecasts are highly uncertain, as history has shown. Prices for near-term futures options contracts suggest that the market attaches

246

Reducing long-term reservoir performance uncertainty  

DOE Green Energy (OSTI)

Reservoir performance is one of the key issues that have to be addressed before going ahead with the development of a geothermal field. In order to select the type and size of the power plant and design other surface installations, it is necessary to know the characteristics of the production wells and of the produced fluids, and to predict the changes over a 10--30 year period. This is not a straightforward task, as in most cases the calculations have to be made on the basis of data collected before significant fluid volumes have been extracted from the reservoir. The paper describes the methodology used in predicting the long-term performance of hydrothermal systems, as well as DOE/GTD-sponsored research aimed at reducing the uncertainties associated with these predictions. 27 refs., 1 fig.

Lippmann, M.J.

1988-04-01T23:59:59.000Z

247

Microsoft Word - Price Uncertainty Supplement.doc  

Gasoline and Diesel Fuel Update (EIA)

0 0 1 September 2010 Short-Term Energy Outlook Energy Price Volatility and Forecast Uncertainty 1 September 8, 2010 Release Crude Oil Prices. West Texas Intermediate (WTI) crude oil spot prices averaged about $77 per barrel in August 2010, very close to the July average, but $3 per barrel lower than projected in last month's Outlook. WTI spot prices averaged almost $82 per barrel over the first 10 days of August but then fell by $9 per barrel over the next 2 weeks as the market reacted to a series of reports of a stumbling economic recovery. EIA has lowered its average fourth quarter 2010 WTI spot price forecast to $77 per barrel, compared with $81 in last month's Outlook. WTI spot prices are projected to

248

Microsoft Word - Price Uncertainty Supplement.doc  

Gasoline and Diesel Fuel Update (EIA)

October 2010 October 2010 Short-Term Energy Outlook Energy Price Volatility and Forecast Uncertainty 1 October 13, 2010 Release Crude Oil Prices. WTI oil prices averaged $75 per barrel in September but rose above $80 at the end of the month and into early October. EIA has raised the average fourth- quarter 2010 forecasted WTI spot price to $79 per barrel compared with $77 per barrel in last monthʹs Outlook. WTI spot prices are projected to rise to $85 per barrel by the fourth quarter of next year. As has been the case for most of 2010, WTI futures traded with a notable lack of volatility during the third quarter of 2010 (Figure 1). However, prices did bounce in

249

Microsoft Word - Price Uncertainty Supplement.doc  

Gasoline and Diesel Fuel Update (EIA)

March 2010 March 2010 Short-Term Energy Outlook Energy Price Volatility and Forecast Uncertainty 1 March 9, 2010 Release Crude Oil Prices. WTI crude oil spot prices averaged $76.39 per barrel in February 2010, almost $2 per barrel lower than the prior month's average and very near the $76 per barrel forecast in last month's Outlook. Last month, the WTI spot price reached a low of $71.15 on February 5 and peaked at $80.04 on February 22. EIA expects WTI prices to average above $80 per barrel this spring, rising to an average of about $82 per barrel by the end of the year and to $85 per barrel by the end of 2011 (West Texas Intermediate Crude Oil Price Chart).

250

Microsoft Word - Price Uncertainty Supplement.doc  

Gasoline and Diesel Fuel Update (EIA)

November 2010 November 2010 Short-Term Energy Outlook Energy Price Volatility and Forecast Uncertainty 1 November 9, 2010 Release Crude Oil Prices. WTI crude oil spot prices averaged almost $82 per barrel in October, about $7 per barrel higher than the September average, as expectations of higher oil demand pushed up prices. EIA has raised the average fourth quarter 2010 WTI spot price forecast to about $83 per barrel compared with $79 per barrel in last monthʹs Outlook. WTI spot prices rise to $87 per barrel by the fourth quarter of next year. Projected WTI prices average $79 per barrel in 2010 and $85 per barrel in 2011. WTI futures for January 2011 delivery (for the 5-day period ending November 4)

251

Microsoft Word - Price Uncertainty Supplement.doc  

Gasoline and Diesel Fuel Update (EIA)

May 2010 May 2010 Short-Term Energy Outlook Energy Price Volatility and Forecast Uncertainty 1 May 11, 2010 Release Crude Oil Prices. WTI crude oil spot prices averaged $84 per barrel in April 2010, about $3 per barrel above the prior month's average and $2 per barrel higher than forecast in last month's Outlook. EIA projects WTI prices will average about $84 per barrel over the second half of this year and rise to $87 by the end of next year, an increase of about $2 per barrel from the previous Outlook (West Texas Intermediate Crude Oil Price Chart). Energy price forecasts are highly uncertain, as history has shown. Prices for near-term futures options contracts suggest that the market attaches

252

Microsoft Word - Price Uncertainty Supplement.doc  

Gasoline and Diesel Fuel Update (EIA)

December 2010 Short-Term Energy Outlook Energy Price Volatility and Forecast Uncertainty 1 December 7, 2010 Release Crude Oil Prices. West Texas Intermediate (WTI) crude oil spot prices averaged over $84 per barrel in November, more than $2 per barrel higher than the October average. EIA has raised the average winter 2010-2011 period WTI spot price forecast by $1 per barrel from the last monthʹs Outlook to $84 per barrel. WTI spot prices rise to $89 per barrel by the end of next year, $2 per barrel higher than in the last Outlook. Projected WTI prices average $79 per barrel in 2010 and $86 per barrel in 2011. WTI futures for February 2011 delivery during the 5-day period ending December 2

253

Uncertainty quantification in kinematic wave models  

SciTech Connect

We developed a probabilistic approach to quantify parametric uncertainty in first-order hyperbolic conservation laws (kinematic wave equations). The approach relies on the derivation of a deterministic equation for the cumulative density function (CDF) of the system state, in which probabilistic descriptions (probability density functions or PDFs) of the system parameters and/or initial and boundary conditions serve as inputs. In contrast to PDF equations, which are often used in other contexts, CDF equations allow for straightforward and unambiguous determination of boundary conditions with respect to sample variables.The accuracy and robustness of solutions of the CDF equation for one such system, the Saint-Venant equations of river flows, were investigated via comparison with Monte Carlo simulations.

Wang, Peng; Tartakovsky, Daniel M.

2012-10-01T23:59:59.000Z

254

Microsoft Word - Price Uncertainty Supplement.doc  

Gasoline and Diesel Fuel Update (EIA)

April 2010 April 2010 Short-Term Energy Outlook Energy Price Volatility and Forecast Uncertainty 1 April 6, 2010 Release Crude Oil Prices. WTI crude oil spot prices averaged $81 per barrel in March 2010, almost $5 per barrel above the prior month's average and $3 per barrel higher than forecast in last month's Outlook. Oil prices rose from a low this year of $71.15 per barrel on February 5 to $80 per barrel by the end of February, generally on news of robust economic and energy demand growth in non-OECD Asia and the Middle East, and held near $81 until rising to $85 at the start of April. EIA expects WTI prices to average above $81 per barrel this summer, slightly less that $81 for 2010 as a whole,

255

Radiotherapy Dose Fractionation under Parameter Uncertainty  

SciTech Connect

In radiotherapy, radiation is directed to damage a tumor while avoiding surrounding healthy tissue. Tradeoffs ensue because dose cannot be exactly shaped to the tumor. It is particularly important to ensure that sensitive biological structures near the tumor are not damaged more than a certain amount. Biological tissue is known to have a nonlinear response to incident radiation. The linear quadratic dose response model, which requires the specification of two clinically and experimentally observed response coefficients, is commonly used to model this effect. This model yields an optimization problem giving two different types of optimal dose sequences (fractionation schedules). Which fractionation schedule is preferred depends on the response coefficients. These coefficients are uncertainly known and may differ from patient to patient. Because of this not only the expected outcomes but also the uncertainty around these outcomes are important, and it might not be prudent to select the strategy with the best expected outcome.

Davison, Matt [Department of Applied Mathematics, University of Western Ontario, London, Ontario (Canada); Department of Statistical and Actuarial Science, University of Western Ontario, London, Ontario (Canada); Ivey School of Business, University of Western Ontario, London, Ontario (Canada); Kim, Daero [Department of Applied Mathematics, University of Western Ontario, London, Ontario (Canada); Keller, Harald [Department Radiation Oncology, University of Toronto, Toronto, Ontario (Canada); Radiation Medicine Program, Princess Margaret Hospital, Toronto, Ontario (Canada)

2011-11-30T23:59:59.000Z

256

We underestimate uncertainties in our predictions.  

Science Conference Proceedings (OSTI)

Prediction is defined in the American Heritage Dictionary as follows: 'To state, tell about, or make known in advance, especially on the basis of special knowledge.' What special knowledge do we demand of modeling and simulation to assert that we have a predictive capability for high consequence applications? The 'special knowledge' question can be answered in two dimensions: the process and rigor by which modeling and simulation is executed and assessment results for the specific application. Here we focus on the process and rigor dimension and address predictive capability in terms of six attributes: (1) geometric and representational fidelity, (2) physics and material model fidelity, (3) code verification, (4) solution verification, (5) validation, and (6) uncertainty quantification. This presentation will demonstrate through mini-tutorials, simple examples, and numerous case studies how each attribute creates opportunities for errors, biases, or uncertainties to enter into simulation results. The demonstrations will motivate a set of practices that minimize the risk in using modeling and simulation for high-consequence applications while defining important research directions. It is recognized that there are cultural, technical, infrastructure, and resource barriers that prevent analysts from performing all analyses at the highest levels of rigor. Consequently, the audience for this talk is (1) analysts, so they can know what is expected of them, (2) decision makers, so they can know what to expect from modeling and simulation, and (3) the R&D community, so they can address the technical and infrastructure issues that prevent analysts from executing analyses in a practical, timely, and quality manner.

Pilch, Martin M.

2010-04-01T23:59:59.000Z

257

Incorporating uncertainty in RADTRAN 6.0 input files.  

SciTech Connect

Uncertainty may be introduced into RADTRAN analyses by distributing input parameters. The MELCOR Uncertainty Engine (Gauntt and Erickson, 2004) has been adapted for use in RADTRAN to determine the parameter shape and minimum and maximum of the distribution, to sample on the distribution, and to create an appropriate RADTRAN batch file. Coupling input parameters is not possible in this initial application. It is recommended that the analyst be very familiar with RADTRAN and able to edit or create a RADTRAN input file using a text editor before implementing the RADTRAN Uncertainty Analysis Module. Installation of the MELCOR Uncertainty Engine is required for incorporation of uncertainty into RADTRAN. Gauntt and Erickson (2004) provides installation instructions as well as a description and user guide for the uncertainty engine.

Dennis, Matthew L.; Weiner, Ruth F.; Heames, Terence John (Alion Science and Technology)

2010-02-01T23:59:59.000Z

258

Regulatory Commission of Alaska | Open Energy Information  

Open Energy Info (EERE)

Regulatory Commission of Alaska Regulatory Commission of Alaska Jump to: navigation, search Logo: Regulatory Commission of Alaska Name Regulatory Commission of Alaska Address 701 West Eight Ave., Suite 300 Place Anchorage, Alaska Zip 99501-3469 Phone number 907-276-6222 Website http://rca.alaska.gov/RCAWeb/h Coordinates 61.2143463°, -149.8931523° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":61.2143463,"lon":-149.8931523,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

259

Federal Energy Regulatory Commission | Open Energy Information  

Open Energy Info (EERE)

Energy Regulatory Commission Energy Regulatory Commission Jump to: navigation, search Logo: Federal Energy Regulatory Commission Name Federal Energy Regulatory Commission Address 888 First Street, N.E. Place Washington, District of Columbia Zip 20426 Phone number 1-866-208-3676 Website http://www.ferc.gov/contact-us Coordinates 38.90145°, -77.006248° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.90145,"lon":-77.006248,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

260

Legal and Regulatory | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Legal and Regulatory Legal and Regulatory Legal and Regulatory Below are resources for Tribes on legal and regulatory issues. A Guide to Community Solar: Utility, Private, and Non-Profit Project Development A resource for community solar project development aimed at community organizers, solar advocates, government officials, and utility managers. Provides information on various community solar project models (utility-sponsored, special purpose entities, non-profits), state policies that support community solar projects (group billing, virtual net metering, joint ownership), and tax policies and incentives. Source: U.S. Department of Energy. An Introduction to Geothermal Permitting This guide tracks the geothermal permitting process through multiple levels, addressing such issues as the importance of where the geothermal

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


261

DEPARTMENT OF ENERGY Reducing Regulatory Burden  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Billing Code 6450 01-P Billing Code 6450 01-P DEPARTMENT OF ENERGY Reducing Regulatory Burden AGENCY: Office of the General Counsel, Department of Energy. ACTION: Request for information. SUMMARY: As part of its implementation of Executive Order 13563, "Improving Regulation and Regulatory Review," issued by the President on January 18, 2011, the Department of Energy (DOE) is seeking comments and information from interested parties to assist DOE in reviewing its existing regulations to determine whether any such regulations should be modified, streamlined, expanded, or repealed. The purpose of DOE's review is to make the agency's regulatory program more effective and less burdensome in achieving its regulatory objectives. DATES: Written comments and information are requested on or before 45 days after

262

Geothermal Regulatory Roadmap | OpenEI Community  

Open Energy Info (EERE)

Geothermal Regulatory Roadmap Geothermal Regulatory Roadmap Home > Groups > Groups > Geothermal Regulatory Roadmap Content Group Activity By term Q & A Feeds There are no feeds from external sites for this group. Groups Menu You must login in order to post into this group. Groups Menu You must login in order to post into this group. Group members (12) Managers: Kyoung Recent members: AfifaAwan Dklein2012 Jweers AGill Agentile Kwitherbee Kjking Payne Dhoefner Twnrel Alevine Recent content Geothermal NEPA Workshop at GRC New Robust References! Geothermal Regulatory Roadmap featured on NREL Now Texas Legal Review GRR 3rd Quarter - Stakeholder Update Meeting more Group members (12) Managers: Kyoung Recent members: AfifaAwan Dklein2012 Jweers AGill Agentile Kwitherbee Kjking Payne Dhoefner Twnrel Alevine 429 Throttled (bot load)

263

Regulatory Considerations for Developing Distributed Generation...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Generation Projects Webinar Regulatory Considerations for Developing Distributed Generation Projects Webinar May 23, 2012 11:30AM to 1:00PM MDT The purpose of this webinar...

264

Fourth RFI Comment on Regulatory Review  

Energy.gov (U.S. Department of Energy (DOE))

As part of its implementation of Executive Order 13563, ‘‘Improving Regulation and Regulatory Review,’’ issued by the President on January 18, 2011, the Department of Energy (Department or DOE) is...

265

Evolution and statistics of biological regulatory networks  

E-Print Network (OSTI)

In this thesis, I study the process of evolution of the gene regulatory network in Escherichia coli. First, I characterize the portion of the network that has been documented, and then I simulate growth of the network. In ...

Chandalia, Juhi Kiran, 1979-

2005-01-01T23:59:59.000Z

266

NEMA Comments on Reducing Regulatory Burden  

Energy.gov (U.S. Department of Energy (DOE))

The National Electrical Manufacturers Association (NEMA) thanks you for the opportunity to provide comments on the Department of Energy’s efforts to make its regulatory program more effective and...

267

Reducing Regulatory Burden EO 13563 Third RFI  

Energy.gov (U.S. Department of Energy (DOE))

As part of its implementation of Executive Order 13563, ‘‘Improving Regulation and Regulatory Review,’’ issued by the President on January 18, 2011, the Department of Energy (Department or DOE) is...

268

Analysis of Regulatory Guidance for Health Monitoring  

Science Conference Proceedings (OSTI)

The purpose of this study was to assess the connection between current FAA regulations and the incorporation of Health Management (HM) systems into commercial aircraft. To address the overall objectives ARINC (1) investigated FAA regulatory guidance, ...

Munns Thomas E.; Beard Richard E.; Culp Aubrey M.; Murphy Dennis A.; Kent Renee M.

2000-12-01T23:59:59.000Z

269

Regulatory Considerations for Developing Distributed Generation Projects  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Regulatory Considerations for Developing Distributed Generation Regulatory Considerations for Developing Distributed Generation Projects Webinar Regulatory Considerations for Developing Distributed Generation Projects Webinar May 23, 2012 11:30AM to 1:00PM MDT The purpose of this webinar is to educate NRECA and APPA members, Tribes, and federal energy managers about a few of the regulatory issues that should be considered in developing business plans for distributed generation projects. This webinar is sponsored by the DOE Office of Indian Energy Policy and Programs, DOE Energy Efficiency and Renewable Energy Tribal Energy Program, Western Area Power Administration, DOE Federal Energy Management Program, DOE Office of Electricity Delivery and Energy Reliability, National Rural Electric Cooperative Association, and the American Public Power

270

EIA - Natural Gas Pipeline Network - Regulatory Authorities  

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

Regulatory Authorities Regulatory Authorities About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates U.S. Natural Gas Regulatory Authorities Beginning | Regulations Today | Coordinating Agencies | Regulation of Mergers and Acquisitions Beginning of Industry Restructuring In April 1992, the Federal Energy Regulatory Commission (FERC) issued its Order 636 and transformed the interstate natural gas transportation segment of the industry forever. Under it, interstate natural gas pipeline companies were required to restructure their operations by November 1993 and split-off any non-regulated merchant (sales) functions from their regulated transportation functions. This new requirement meant that interstate natural gas pipeline companies were allowed to only transport natural gas for their customers. The restructuring process and subsequent operations have been supervised closely by FERC and have led to extensive changes throughout the interstate natural gas transportation segment which have impacted other segments of the industry as well.

271

Geothermal Regulatory Roadmap | OpenEI Community  

Open Energy Info (EERE)

Geothermal Regulatory Roadmap Geothermal Regulatory Roadmap Home > Geothermal Regulatory Roadmap > Posts by term Content Group Activity By term Q & A Feeds 1031 regulations (1) Alaska (1) analysis (3) appropriations (1) BHFS (3) Categorical Exclusions (3) citation (1) citing (1) Colorado (2) Coordinating Permit Office (2) Cost Mechanisms (2) Cost Recovery (2) CX (1) D.C. (1) data (1) Database (1) developer (2) EA (1) EIS (1) endangered species (1) Fauna (1) feedback (1) Fish and Wildlife (1) Flora (1) flora and fauna (1) 1 2 3 next › last » Groups Menu You must login in order to post into this group. Recent content Geothermal NEPA Workshop at GRC New Robust References! Geothermal Regulatory Roadmap featured on NREL Now Texas Legal Review GRR 3rd Quarter - Stakeholder Update Meeting more Group members (12)

272

Regulatory Burden RFI Executive Order 13563  

Energy.gov (U.S. Department of Energy (DOE))

The situation we described last year (see below) has not improved.  We are waiting for additional rules from DOE but don’t believe they’ll provide the needed relief from regulatory burden.  This...

273

Regulatory Process for Decommissioning Nuclear Power Reactors  

Science Conference Proceedings (OSTI)

The NRC revised decommissioning rule 10 CFR 50.82 in 1996 to make significant changes in the regulatory process for nuclear power plant licensees. This report provides a summary of ongoing federal agency and industry activities. It also describes the regulatory requirements applicable, or no longer applicable, to nuclear power plants at the time of permanent shutdown through the early decommissioning stage. The report describes the major components of a typical decommissioning plan, and provides industry...

1998-03-26T23:59:59.000Z

274

Effects of uncertainties and errors on Lyapunov control  

E-Print Network (OSTI)

Lyapunov control (open-loop) is often confronted with uncertainties and errors in practical applications. In this paper, we analyze the robustness of Lyapunov control against the uncertainties and errors in quantum control systems. The analysis is carried out through examinations of uncertainties and errors, calculations of the control fidelity under influences of the certainties and errors, as well as discussions on the caused effects. Two examples, a closed control system and an open control system, are presented to illustrate the general formulism.

Yi, X X; Wu, Chunfeng; Oh, C H

2010-01-01T23:59:59.000Z

275

Uncertainty Principle Inequalities Related to Laguerre-Bessel Transform  

E-Print Network (OSTI)

In this paper, an analogous of Heisenberg inequality is established for Laguerre-Bessel transform. Also, a local uncertainty principle for this transform is investigate

Hamem, Soumeya

2011-01-01T23:59:59.000Z

276

Gas Exploration Software for Reducing Uncertainty in Gas ...  

... * Improve estimation of reservoir parameters and quantify uncertainty in the estimation when exploring for gas and oil deposits using geophysical data More ...

277

Approaches to uncertainty evaluation based on proficiency testing ...  

Science Conference Proceedings (OSTI)

example (glucose in human serum) where the uncertainty .... to the normalised error, EN, (Eq. 2). ... a human plasma sample, expressed in mmol/L. The ana-.

278

Characterizing Uncertainty for Regional Climate Change Mitigation and Adaptation Decisions  

SciTech Connect

This white paper describes the results of new research to develop an uncertainty characterization process to help address the challenges of regional climate change mitigation and adaptation decisions.

Unwin, Stephen D.; Moss, Richard H.; Rice, Jennie S.; Scott, Michael J.

2011-09-30T23:59:59.000Z

279

Including uncertainty in hazard analysis through fuzzy measures  

Science Conference Proceedings (OSTI)

This paper presents a method for capturing the uncertainty expressed by an Hazard Analysis (HA) expert team when estimating the frequencies and consequences of accident sequences and provides a sound mathematical framework for propagating this uncertainty to the risk estimates for these accident sequences. The uncertainty is readily expressed as distributions that can visually aid the analyst in determining the extent and source of risk uncertainty in HA accident sequences. The results also can be expressed as single statistics of the distribution in a manner analogous to expressing a probabilistic distribution as a point-value statistic such as a mean or median. The study discussed here used data collected during the elicitation portion of an HA on a high-level waste transfer process to demonstrate the techniques for capturing uncertainty. These data came from observations of the uncertainty that HA team members expressed in assigning frequencies and consequences to accident sequences during an actual HA. This uncertainty was captured and manipulated using ideas from possibility theory. The result of this study is a practical method for displaying and assessing the uncertainty in the HA team estimates of the frequency and consequences for accident sequences. This uncertainty provides potentially valuable information about accident sequences that typically is lost in the HA process.

Bott, T.F.; Eisenhawer, S.W.

1997-12-01T23:59:59.000Z

280

Investment and Upgrade in Distributed Generation under Uncertainty  

E-Print Network (OSTI)

generation investment by a microgrid under uncertainty.M. E?ects of carbon tax on microgrid combined heat and powersite generation. Nevertheless, a microgrid contemplating the

Siddiqui, Afzal

2008-01-01T23:59:59.000Z

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


281

Reducing Uncertainties in Life Limits of Titanium Alloys in Turbine ...  

Science Conference Proceedings (OSTI)

Presentation Title, Reducing Uncertainties in Life Limits of Titanium Alloys in Turbine Engine Rotors. Author(s), James M. Larsen, Sushant Jha, Christopher J.

282

A surrogate-based uncertainty quantification with quantifiable errors  

Science Conference Proceedings (OSTI)

Surrogate models are often employed to reduce the computational cost required to complete uncertainty quantification, where one is interested in propagating input parameters uncertainties throughout a complex engineering model to estimate responses uncertainties. An improved surrogate construction approach is introduced here which places a premium on reducing the associated computational cost. Unlike existing methods where the surrogate is constructed first, then employed to propagate uncertainties, the new approach combines both sensitivity and uncertainty information to render further reduction in the computational cost. Mathematically, the reduction is described by a range finding algorithm that identifies a subspace in the parameters space, whereby parameters uncertainties orthogonal to the subspace contribute negligible amount to the propagated uncertainties. Moreover, the error resulting from the reduction can be upper-bounded. The new approach is demonstrated using a realistic nuclear assembly model and compared to existing methods in terms of computational cost and accuracy of uncertainties. Although we believe the algorithm is general, it will be applied here for linear-based surrogates and Gaussian parameters uncertainties. The generalization to nonlinear models will be detailed in a separate article. (authors)

Bang, Y.; Abdel-Khalik, H. S. [North Carolina State Univ., Raleigh, NC 27695 (United States)

2012-07-01T23:59:59.000Z

283

Model simplification of chemical kinetic systems under uncertainty  

E-Print Network (OSTI)

This thesis investigates the impact of uncertainty on the reduction and simplification of chemical kinetics mechanisms. Chemical kinetics simulations of complex fuels are very computationally expensive, especially when ...

Coles, Thomas Michael Kyte

2011-01-01T23:59:59.000Z

284

The effects of incorporating dynamic data on estimates of uncertainty  

E-Print Network (OSTI)

Petroleum exploration and development are capital intensive and smart economic decisions that need to be made to profitably extract oil and gas from the reservoirs. Accurate quantification of uncertainty in production forecasts will help in assessing risk and making good economic decisions. This study investigates the effect of combining dynamic data with the uncertainty in static data to see the effect on estimates of uncertainty in production forecasting. Fifty permeability realizations were generated for a reservoir in west Texas from available petrophysical data. We quantified the uncertainty in the production forecasts using a likelihood weighting method and an automatic history matching technique combined with linear uncertainty analysis. The results were compared with the uncertainty predicted using only static data. We also investigated approaches for best selecting a smaller number of models from a larger set of realizations to be history matched for quantification of uncertainty. We found that incorporating dynamic data in a reservoir model will result in lower estimates of uncertainty than considering only static data. However, incorporation of dynamic data does not guarantee that the forecasted ranges will encompass the true value. Reliability of the forecasted ranges depends on the method employed. When sampling multiple realizations of static data for history matching to quantify uncertainty, a sampling over the entire range of realization likelihoods shows larger confidence intervals and is more likely to encompass the true value for predicted fluid recoveries, as compared to selecting the best models.

Mulla, Shahebaz Hisamuddin

2003-12-01T23:59:59.000Z

285

Relating confidence to measured information uncertainty in qualitative reasoning  

SciTech Connect

Qualitative reasoning makes use of qualitative assessments provided by subject matter experts to model factors such as security risk. Confidence in a result is important and useful when comparing competing results. Quantifying the confidence in an evidential reasoning result must be consistent and based on the available information. A novel method is proposed to relate confidence to the available information uncertainty in the result using fuzzy sets. Information uncertainty can be quantified through measures of non-specificity and conflict. Fuzzy values for confidence are established from information uncertainty values that lie between the measured minimum and maximum information uncertainty values.

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

2010-10-07T23:59:59.000Z

286

Decision making under epistemic uncertainty : an application to seismic design  

E-Print Network (OSTI)

The problem of accounting for epistemic uncertainty in risk management decisions is conceptually straightforward, but is riddled with practical difficulties. Simple approximations are often used whereby future variations ...

Agarwal, Anna

2008-01-01T23:59:59.000Z

287

Measurement uncertainty analysis techniques applied to PV performance measurements  

DOE Green Energy (OSTI)

The purpose of this presentation is to provide a brief introduction to measurement uncertainty analysis, outline how it is done, and illustrate uncertainty analysis with examples drawn from the PV field, with particular emphasis toward its use in PV performance measurements. The uncertainty information we know and state concerning a PV performance measurement or a module test result determines, to a significant extent, the value and quality of that result. What is measurement uncertainty analysis It is an outgrowth of what has commonly been called error analysis. But uncertainty analysis, a more recent development, gives greater insight into measurement processes and tests, experiments, or calibration results. Uncertainty analysis gives us an estimate of the I interval about a measured value or an experiment's final result within which we believe the true value of that quantity will lie. Why should we take the time to perform an uncertainty analysis A rigorous measurement uncertainty analysis: Increases the credibility and value of research results; allows comparisons of results from different labs; helps improve experiment design and identifies where changes are needed to achieve stated objectives (through use of the pre-test analysis); plays a significant role in validating measurements and experimental results, and in demonstrating (through the post-test analysis) that valid data have been acquired; reduces the risk of making erroneous decisions; demonstrates quality assurance and quality control measures have been accomplished; define Valid Data as data having known and documented paths of: Origin, including theory; measurements; traceability to measurement standards; computations; uncertainty analysis of results.

Wells, C.

1992-10-01T23:59:59.000Z

288

Uncertainty relation for non-Hamiltonian quantum systems  

SciTech Connect

General forms of uncertainty relations for quantum observables of non-Hamiltonian quantum systems are considered. Special cases of uncertainty relations are discussed. The uncertainty relations for non-Hamiltonian quantum systems are considered in the Schroedinger-Robertson form since it allows us to take into account Lie-Jordan algebra of quantum observables. In uncertainty relations, the time dependence of quantum observables and the properties of this dependence are discussed. We take into account that a time evolution of observables of a non-Hamiltonian quantum system is not an endomorphism with respect to Lie, Jordan, and associative multiplications.

Tarasov, Vasily E. [Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119991 (Russian Federation)] [Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119991 (Russian Federation)

2013-01-15T23:59:59.000Z

289

Robust Dynamic Traffic Assignment under Demand and Capacity Uncertainty  

E-Print Network (OSTI)

Assignment under Demand and Capacity Uncertainty ? Giuseppeworst-case sce- nario of demand and capacity con?gurations.uncertain demands and capacities are modeled as unknown-but-

Calafiore, Giuseppe; El Ghaoui, Laurent

2008-01-01T23:59:59.000Z

290

KWOC (Key-Word-Out-of-Context) Index of US Nuclear Regulatory Commission Regulatory Guide Series  

SciTech Connect

To meet the objectives of the program funded by the Department of Energy (DOE)-Nuclear Energy (NE) Technology Support Programs, the Performance Assurance Project Office (PAPO) administers a Performance Assurance Information Program that collects, compiles, and distributes program-related information, reports, and publications for the benefit of the DOE-NE program participants. THE KWOC Index of US Nuclear Regulatory Commission Regulatory Guide Series'' is prepared as an aid in searching for specific topics in the US Nuclear Regulatory Commission, Regulatory Guide Series.

Jennings, S.D.

1990-04-01T23:59:59.000Z

291

Treatment of Parameter and Modeling Uncertainty for Probabilistic Risk Assessments  

Science Conference Proceedings (OSTI)

Both the industry and the U.S. Nuclear Regulatory Commission (NRC) incorporate risk concepts and techniques into activities for effective risk management. The NRC is using probabilistic risk assessment (PRA) in its regulatory activities in a manner that promotes consistency, predictability, and efficiency in the performance of the NRCs roles of risk manager and protector of public health and safety. The nuclear industry uses PRA to identify and manage risks, as a tool to promote efficient regulatory inte...

2008-12-19T23:59:59.000Z

292

Fuzzy-probabilistic calculations of water-balance uncertainty  

E-Print Network (OSTI)

flow and transport for SDMP sites, NUREG/CR-6565, US Nuclearfacilities and sites, NUREG/CR-6805. US Nuclear Regulatory

Faybishenko, B.

2010-01-01T23:59:59.000Z

293

Analysis of Variability and Uncertainty in Wind Power Forecasting: An International Comparison: Preprint  

DOE Green Energy (OSTI)

One of the critical challenges of wind power integration is the variable and uncertain nature of the resource. This paper investigates the variability and uncertainty in wind forecasting for multiple power systems in six countries. An extensive comparison of wind forecasting is performed among the six power systems by analyzing the following scenarios: (i) wind forecast errors throughout a year; (ii) forecast errors at a specific time of day throughout a year; (iii) forecast errors at peak and off-peak hours of a day; (iv) forecast errors in different seasons; (v) extreme forecasts with large overforecast or underforecast errors; and (vi) forecast errors when wind power generation is at different percentages of the total wind capacity. The kernel density estimation method is adopted to characterize the distribution of forecast errors. The results show that the level of uncertainty and the forecast error distribution vary among different power systems and scenarios. In addition, for most power systems, (i) there is a tendency to underforecast in winter; and (ii) the forecasts in winter generally have more uncertainty than the forecasts in summer.

Zhang, J.; Hodge, B. M.; Gomez-Lazaro, E.; Lovholm, A. L.; Berge, E.; Miettinen, J.; Holttinen, H.; Cutululis, N.; Litong-Palima, M.; Sorensen, P.; Dobschinski, J.

2013-10-01T23:59:59.000Z

294

Regulatory Closure Options for the Residue in the Hanford Site Single-Shell Tanks  

SciTech Connect

Liquid, mixed, high-level radioactive waste (HLW) has been stored in 149 single-shell tanks (SSTS) located in tank farms on the U.S. Department of Energy's (DOE's) Hanford Site. The DOE is developing technologies to retrieve as much remaining HLW as technically possible prior to physically closing the tank farms. In support of the Hanford Tanks Initiative, Sandia National Laboratories has addressed the requirements for the regulatory closure of the radioactive component of any SST residue that may remain after physical closure. There is significant uncertainty about the end state of each of the 149 SSTS; that is, the nature and amount of wastes remaining in the SSTS after retrieval is uncertain. As a means of proceeding in the face of these uncertainties, this report links possible end-states with associated closure options. Requirements for disposal of HLW and low-level radioactive waste (LLW) are reviewed in detail. Incidental waste, which is radioactive waste produced incidental to the further processing of HLW, is then discussed. If the low activity waste (LAW) fraction from the further processing of HLW is determined to be incidental waste, then DOE can dispose of that incidental waste onsite without a license from the U.S. Nuclear Regulatory Commissions (NRC). The NRC has proposed three Incidental Waste Criteria for determining if a LAW fraction is incidental waste. One of the three Criteria is that the LAW fraction should not exceed the NRC's Class C limits.

Cochran, J.R. Shyr, L.J.

1998-10-05T23:59:59.000Z

295

Simulating Random Natural Variability in Time-Varying Atmospheric  

NLE Websites -- All DOE Office Websites (Extended Search)

Simulating Random Natural Variability in Time-Varying Atmospheric Simulating Random Natural Variability in Time-Varying Atmospheric Concentrations of Toxic Gas from Pipeline Ruptures Speaker(s): David J. Wilson Date: February 4, 2004 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Jeiwon Deputy Random time series are found everywhere in nature. The Brownian motion of small particles; the price of assets (stocks) in financial markets; the diffusion of individual molecules through a membrane; the ballistic deposition of nano-particles onto a lattice substrate; and the time-varying concentration fluctuations at a point downwind from a pollution source all have a common dynamic description. All are stochastic processes where the local rate of change of the variable has a natural drift back to some equilibrium state, combined with a random fluctuating component. We will

296

Testing Mass Varying Neutrino With Short Gamma Ray Burst  

E-Print Network (OSTI)

In this paper we study the possibility of probing for the absolute neutrino mass and its variation with short Gamma Ray Burst (GRB). We have calculated the flight time difference between a massive neutrino and a photon in two different approaches to mass varying neutrinos. Firstly we parametrize the neutrino mass as a function of redshift in a model independent way, then we consider two specific models where the neutrino mass varies during the evolution of the Quintessence fields. Our calculations show in general the value of the time delay is changed substantially relative to a constant neutrino mass. Furthermore our numerical results show that the flight time delay in these models is expected to be larger than the duration time of the short GRB, which opens a possibility of testing the scenario of mass varying neutrino with the short GRB.

Hong Li; Zigao Dai; Xinmin Zhang

2004-11-17T23:59:59.000Z

297

Training Program EHS 0611 ~ Universal Waste Regulatory Training  

NLE Websites -- All DOE Office Websites (Extended Search)

Environment, Health, & Safety Training Program EHS 0611 Universal Waste Regulatory Training Course Syllabus Subject...

298

Uncertainty quantification of limit-cycle oscillations  

SciTech Connect

Different computational methodologies have been developed to quantify the uncertain response of a relatively simple aeroelastic system in limit-cycle oscillation, subject to parametric variability. The aeroelastic system is that of a rigid airfoil, supported by pitch and plunge structural coupling, with nonlinearities in the component in pitch. The nonlinearities are adjusted to permit the formation of a either a subcritical or supercritical branch of limit-cycle oscillations. Uncertainties are specified in the cubic coefficient of the torsional spring and in the initial pitch angle of the airfoil. Stochastic projections of the time-domain and cyclic equations governing system response are carried out, leading to both intrusive and non-intrusive computational formulations. Non-intrusive formulations are examined using stochastic projections derived from Wiener expansions involving Haar wavelet and B-spline bases, while Wiener-Hermite expansions of the cyclic equations are employed intrusively and non-intrusively. Application of the B-spline stochastic projection is extended to the treatment of aerodynamic nonlinearities, as modeled through the discrete Euler equations. The methodologies are compared in terms of computational cost, convergence properties, ease of implementation, and potential for application to complex aeroelastic systems.

Beran, Philip S. [Multidisciplinary Technologies Center, Air Vehicles Directorate, AFRL/VASD, Building 146, 2210 Eighth Street, WPAFB, OH 45433 (United States)]. E-mail: philip.beran@wpafb.af.mil; Pettit, Chris L. [United States Naval Academy, 590 Holloway Rd., MS 11-B, Annapolis, MD 21402 (United States)]. E-mail: pettitcl@usna.edu; Millman, Daniel R. [USAF TPS/EDT, 220 South Wolfe Ave, Bldg. 1220, Rm. 131, Edwards AFB, CA 93524-6485 (United States)]. E-mail: daniel.millman@edwards.af.mil

2006-09-01T23:59:59.000Z

299

Dark Energy from Quantum Uncertainty of Simultaneity  

E-Print Network (OSTI)

The observed acceleration expansion of the universe was thought attribute to a mysterious dark energy in the framework of the classical general relativity. The dark energy behaves very similar with a vacuum energy in quantum mechanics. However, once the quantum effects are seriously taken into account, it predicts a wrong order of the vacuum energy and leads to a severe fine-tuning, known as the cosmological constant problem. We abandon the standard interpretation that time is a global parameter in quantum mechanics, replace it by a quantum dynamical variable playing the role of an operational quantum clock system. In the framework of reinterpretation of time, we find that the synchronization of two quantum clocks distance apart can not be realized in all rigor at quantum level. Thus leading to an intrinsic quantum uncertainty of simultaneity between spatial interval, which implies a visional vacuum energy fluctuation and gives an observed dark energy density $\\rho_{de}=\\frac{6}{\\pi}L_{P}^{-2}L_{H}^{-2}$, whe...

Luo, M J

2014-01-01T23:59:59.000Z

300

Dark Energy from Quantum Uncertainty of Simultaneity  

E-Print Network (OSTI)

The observed acceleration expansion of the universe was thought attribute to a mysterious dark energy in the framework of the classical general relativity. The dark energy behaves very similar with a vacuum energy in quantum mechanics. However, once the quantum effects are seriously taken into account, it predicts a wrong order of the vacuum energy and leads to a severe fine-tuning, known as the cosmological constant problem. We abandon the standard interpretation that time is a global parameter in quantum mechanics, replace it by a quantum dynamical variable playing the role of an operational quantum clock system. In the framework of reinterpretation of time, we find that the synchronization of two quantum clocks distance apart can not be realized in all rigor at quantum level. Thus leading to an intrinsic quantum uncertainty of simultaneity between spatial interval, which implies a visional vacuum energy fluctuation and gives an observed dark energy density $\\rho_{de}=\\frac{6}{\\pi}L_{P}^{-2}L_{H}^{-2}$, where $L_{P}$ and $L_{H}$ are the Planck and Hubble scale cut-off. The expectation value of zero-point energy automatically vanishes under the quantum dynamical time variable. The fraction of the dark energy is precisely given by $\\Omega_{de}=\\frac{2}{\\pi}$, which does not evolve with the quantum dynamical time variable, so it is "always" comparable to the matter energy density or the critical density. This theory is consistent with current cosmic observations.

M. J. Luo

2014-01-11T23:59:59.000Z

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


301

Natural Gas Price Uncertainty: Establishing Price Floors  

Science Conference Proceedings (OSTI)

This report presents the results of comprehensive calculations of ceiling and floor prices for natural gas. Ceiling prices are set by the price levels at which it is more economic to switch from natural gas to residual fuel oil in steam units and to distillate in combined cycle units. Switching to distillate is very rare, whereas switching to fuel oil is quite common, varying between winter and summer and increasing when natural gas prices are high or oil prices low. Monthly fuel use was examined for 89 ...

2007-01-11T23:59:59.000Z

302

Evaluating the role of uncertainty in electric utility capacity planning  

SciTech Connect

This final report on Evaluating the Role of Uncertainty in Electric Utility Capacity Planning is divided into separate sections addressing demand, supply and the simultaneous consideration of both and describes several mathematical characterizations of the effects of uncertainty on the capacity expansion decision. The basic objective is to develop more robust models which can appropriately include the fundamental uncertainties associated with capacity expansion planning in the electric utility industry. Much of what has been developed in this project has been incorporated into a long-term, computer model for capacity expansion planning. A review is provided of certain deterministic capacity expansion methodologies. The effect of load curve uncertainty on capacity planning is considered and the use of a certain expected load curve to account for uncertainty in demand is proposed. How uncertainty influences the allocation of capital costs among the various load curve realizations is also discussed. The supply side uncertainties of fuel prices and random availability of generating units are considered. In certain cases it is shown that the use of the expected fuel costs will furnish a solution which minimizes the total expected costs. The effect of derating units to account for their random availability is also characterized. A stochastic linear program formulated to examine the simultaneous consideration of fuel cost and demand uncertainties is analyzed. This volume includes the report text one appendix with information on linear programming-based analysis of marginal cost pricing in the electric utility industry.

Soyster, A.L.

1981-08-31T23:59:59.000Z

303

Random matrix theory for modeling uncertainties in computational mechanics  

E-Print Network (OSTI)

Random matrix theory for modeling uncertainties in computational mechanics C. Soize Laboratory of Engineering Mechanics, University of Marne-la-Vall´ee, 5 boulevard Descartes, 77454 Marne-la-Vallée, France, e in computational mechanics. If data uncertainties can be modeled by parametric probabilistic methods, for a given

Paris-Sud XI, Université de

304

Poster: Data intensive uncertainty quantification: applications to climate modeling  

Science Conference Proceedings (OSTI)

In October of 2009, LLNL began a three-year Strategic Initiative, "The Advance of Uncertainty Quantification Science with Application to Climate Modeling, Inertial Confinement Fusion Design, and Stockpile Stewardship Science." The goal of the project ... Keywords: climate model, uncertainty quantification

John Tannahill; Donald D. Lucas; David Domyancic; Scott Brandon; Richard Klein

2011-11-01T23:59:59.000Z

305

Uncertainties in the Anti-neutrino Production at Nuclear Reactors  

E-Print Network (OSTI)

Anti-neutrino emission rates from nuclear reactors are determined from thermal power measurements and fission rate calculations. The uncertainties in these quantities for commercial power plants and their impact on the calculated interaction rates in electron anti-neutrino detectors is examined. We discuss reactor-to-reactor correlations between the leading uncertainties and their relevance to reactor anti-neutrino experiments.

Z. Djurcic; J. A. Detwiler; A. Piepke; V. R. Foster Jr.; L. Miller; G. Gratta

2008-08-06T23:59:59.000Z

306

Uncertainties in the Anti-neutrino Production at Nuclear Reactors  

E-Print Network (OSTI)

Anti-neutrino emission rates from nuclear reactors are determined from thermal power measurements and fission rate calculations. The uncertainties in these quantities for commercial power plants and their impact on the calculated interaction rates in electron anti-neutrino detectors is examined. We discuss reactor-to-reactor correlations between the leading uncertainties and their relevance to reactor anti-neutrino experiments.

Djurcic, Z; Piepke, A; Foster, V R; Miller, L; Gratta, G

2008-01-01T23:59:59.000Z

307

A New Measure of Earnings Forecast Uncertainty Xuguang Sheng  

E-Print Network (OSTI)

A New Measure of Earnings Forecast Uncertainty Xuguang Sheng American University Washington, D of earnings forecast uncertainty as the sum of dispersion among analysts and the variance of mean forecast available to analysts at the time they make their forecasts. Hence, it alleviates some of the limitations

Kim, Kiho

308

Engineering computation under uncertainty - Capabilities of non-traditional models  

Science Conference Proceedings (OSTI)

This paper provides a review of various non-traditional uncertainty models for engineering computation and responds to the criticism of those models. This criticism imputes inappropriateness in representing uncertain quantities and an absence of numerically ... Keywords: Computational efficiency, Fuzzy models, Fuzzy randomness, Imprecise probabilities, Interval analysis, Uncertainty modeling

Bernd Möller; Michael Beer

2008-05-01T23:59:59.000Z

309

Efficient Algorithms for Heavy-Tail Analysis under Interval Uncertainty  

E-Print Network (OSTI)

Efficient Algorithms for Heavy-Tail Analysis under Interval Uncertainty Vladik Kreinovich1 heavy-tailed distri- butions, i.e., distributions in which (x) decreases as (x) x- . To properly take for computing these ranges. Keywords: heavy-tailed distributions, interval uncertainty, efficient algorithms

Kreinovich, Vladik

310

Distributed Generation Investment by a Microgrid Under Uncertainty  

E-Print Network (OSTI)

LBNL-60592 Distributed Generation Investment by a Microgrid Under Uncertainty Afzal Siddiqui'06 1 Distributed Generation Investment by a Microgrid Under Uncertainty Afzal Siddiqui University a California-based microgrid's decision to invest in a distributed generation (DG) unit that operates

311

Short title: STOCHASTIC VARIATIONAL APPROACH TO MINIMUM UNCERTAINTY  

E-Print Network (OSTI)

We introduce a new variational characterization of Gaussian diffusion processes as minimum uncertainty states. We then define a variational method constrained by kinematics of diffusions and Schrödinger dynamics to seek states of local minimum uncertainty for general non-harmonic potentials. PACS numbers:03.65.-w, 03.65.Ca, 03.65.Bz 1.

Fabrizio Illuminati; Lorenza Viola

1995-01-01T23:59:59.000Z

312

Uncertainty measures for general Type-2 fuzzy sets  

Science Conference Proceedings (OSTI)

Five uncertainty measures have previously been defined for interval Type-2 fuzzy sets (IT2 FSs), namely centroid, cardinality, fuzziness, variance and skewness. Based on a recently developed @a-plane representation for a general T2 FS, this paper generalizes ... Keywords: ?-Plane representation, Cardinality, Centroid, Fuzziness, Skewness, Type-2 fuzzy sets, Uncertainty measures, Variance

Daoyuan Zhai; Jerry M. Mendel

2011-02-01T23:59:59.000Z

313

Columbia Computer Science Technical Report (2005) Time-Varying Textures  

E-Print Network (OSTI)

that the reflectance and texture of surfaces is a static phe- nomenon. Yet, there is an abundance of materials in nature whose appearance varies dramatically with time, such as cracking paint, growing grass, or ripening such as stress fracture, accu- mulation of particles, and state changes such as oxidation. We then synthesize

314

Columbia Computer Science Technical Report (2005) TimeVarying Textures  

E-Print Network (OSTI)

that the reflectance and texture of surfaces is a static phe­ nomenon. Yet, there is an abundance of materials in nature whose appearance varies dramatically with time, such as cracking paint, growing grass, or ripening such as stress fracture, accu­ mulation of particles, and state changes such as oxidation. We then synthesize

315

LFT/H varying sampling control for Autonomous Underwater Vehicles  

E-Print Network (OSTI)

LFT/H varying sampling control for Autonomous Underwater Vehicles E. Roche , O. Sename D. Simon: This paper deals with the robust control of an Autonomous Underwater Vehicle (AUV) subject to communication. INTRODUCTION In this paper the H approach for LPV systems is applied to an Autonomous Underwater Vehicle (AUV

Paris-Sud XI, Université de

316

Finite element form of FDV for widely varying flowfields  

Science Conference Proceedings (OSTI)

We present the Flowfield Dependent Variation (FDV) method for physical applications that have widely varying spatial and temporal scales. Our motivation is to develop a versatile numerical method that is accurate and stable in simulations with complex ... Keywords: Finite element, Hydrodynamics, Numerical methods, Shock waves, Special relativity

G. A. Richardson; J. T. Cassibry; T. J. Chung; S. T. Wu

2010-01-01T23:59:59.000Z

317

Generation of Coastal Inertial Oscillations by Time-Varying Wind  

Science Conference Proceedings (OSTI)

The excitation of coastal inertial oscillations by a rapidly varying wind is investigated. It is shown that the mean-square response to a completely random forcing is ¯2 ? ?2dt, where ? is the response to impulsive forcing and the integral ...

Pijush K. Kundu

1984-12-01T23:59:59.000Z

318

Design Feasibility Analysis and Optimization under Uncertainty - A Bayesian  

NLE Websites -- All DOE Office Websites (Extended Search)

Design Feasibility Analysis and Optimization under Uncertainty - A Bayesian Design Feasibility Analysis and Optimization under Uncertainty - A Bayesian Optimal Decision Framework Speaker(s): Jose M. Ortega Date: October 7, 2003 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Michael Sohn A new approach to the problem of identifying design feasibility and optimality under uncertainty is introduced. Based on the Bayesian concepts of predictive probability and expected utility, the method can quantify the feasibility of a process design and identify the optimal operation conditions when there are uncertainties in the process parameters. The use of Bayesian statistics enables the treatment of a very wide class of parameter uncertainties, including simple bounds, analytic probability density functions, correlation structures and empirical distributions.

319

NETL: IEP - Air Quality Research: Regulatory Drivers  

NLE Websites -- All DOE Office Websites (Extended Search)

Regulatory Drivers Regulatory Drivers DOE/NETL’s Air Quality Research Program is in direct response to the need to ensure that fossil-fuel-fired power systems continue to meet current and future environmental requirements. Specific environmental regulatory requirements driving this research are briefly summarized below: I. Clean Air Act (Including 1990 Amendments) Title I - Air Pollution Prevention and Control Part A - Air Quality and Emission Limitations Sect. 109 - National Ambient Air Quality Standards In July 1997 EPA promulgated new standards for particulate matter finer than 2.5 micrometers (PM2.5) and revised the ambient ozone standards. Sect. 111 - Standards of Performance for New Stationary Sources Part C - Prevention of Significant Deterioration of Air Quality

320

IEP - Advanced NOx Emissions Control: Regulatory Drivers  

NLE Websites -- All DOE Office Websites (Extended Search)

IEP - Advanced NOx Emissions Control Regulatory Drivers Regulatory Drivers for Existing Coal-Fired Power Plants Regulatory and legislative requirements have predominantly driven the need to develop NOx control technologies for existing coal-fired power plants. The first driver was the Title IV acid rain program, established through the 1990 Clean Air Act Amendments (CAAA). This program included a two-phase strategy to reduce NOx emissions from coal-fired power plants – Phase I started January 1, 1996 and Phase II started January 1, 2000. The Title IV NOx program was implemented through unit-specific NOx emission rate limits ranging from 0.40 to 0.86 lb/MMBtu depending on the type of boiler/burner configuration and based on application of LNB technology.

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


321

Nuclear Regulatory Commission Information Digest, 1991 edition  

Science Conference Proceedings (OSTI)

The Nuclear Regulatory Commission Information Digest provides a summary of information about the US Nuclear Regulatory Commission (NRC), NRC's regulatory responsibilities, and the areas NRC licenses. This digest is a compilation of NRC-related data and is designed to provide a quick reference to major facts about the agency and the industry it regulates. In general, the data cover 1975 through 1990, with exceptions noted. For operating US commercial nuclear power reactors, information on generating capacity and average capacity factor is obtained from Monthly Operating Reports submitted to the NRC directly by the licensee. This information is reviewed for consistency only. No independent validation and/or verification is performed by the NRC. For detailed and complete information about tables and figures, refer to the source publications. This digest is published annually for the general use of the NRC staff and is available to the public. 30 figs., 12 tabs.

Olive, K L

1991-03-01T23:59:59.000Z

322

The IAEA Coordinated Research Program on HTGR Reactor Physics, Thermal-hydraulics and Depletion Uncertainty Analysis: Description of the Benchmark Test Cases and Phases  

SciTech Connect

The continued development of High Temperature Gas Cooled Reactors (HTGRs) requires verification of design and safety features with reliable high fidelity physics models and robust, efficient, and accurate codes. The uncertainties in the HTR analysis tools are today typically assessed with sensitivity analysis and then a few important input uncertainties (typically based on a PIRT process) are varied in the analysis to find a spread in the parameter of importance. However, one wish to apply a more fundamental approach to determine the predictive capability and accuracies of coupled neutronics/thermal-hydraulics and depletion simulations used for reactor design and safety assessment. Today there is a broader acceptance of the use of uncertainty analysis even in safety studies and it has been accepted by regulators in some cases to replace the traditional conservative analysis. Finally, there is also a renewed focus in supplying reliable covariance data (nuclear data uncertainties) that can then be used in uncertainty methods. Uncertainty and sensitivity studies are therefore becoming an essential component of any significant effort in data and simulation improvement. In order to address uncertainty in analysis and methods in the HTGR community the IAEA launched a Coordinated Research Project (CRP) on the HTGR Uncertainty Analysis in Modelling early in 2012. The project is built on the experience of the OECD/NEA Light Water Reactor (LWR) Uncertainty Analysis in Best-Estimate Modelling (UAM) benchmark activity, but focuses specifically on the peculiarities of HTGR designs and its simulation requirements. Two benchmark problems were defined with the prismatic type design represented by the MHTGR-350 design from General Atomics (GA) while a 250 MW modular pebble bed design, similar to the INET (China) and indirect-cycle PBMR (South Africa) designs are also included. In the paper more detail on the benchmark cases, the different specific phases and tasks and the latest status and plans are presented.

Frederik Reitsma; Gerhard Strydom; Bismark Tyobeka; Kostadin Ivanov

2012-10-01T23:59:59.000Z

323

Modeling and Analysis of Time-Varying Graphs  

E-Print Network (OSTI)

We live in a world increasingly dominated by networks -- communications, social, information, biological etc. A central attribute of many of these networks is that they are dynamic, that is, they exhibit structural changes over time. While the practice of dynamic networks has proliferated, we lag behind in the fundamental, mathematical understanding of network dynamism. Existing research on time-varying graphs ranges from preliminary algorithmic studies (e.g., Ferreira's work on evolving graphs) to analysis of specific properties such as flooding time in dynamic random graphs. A popular model for studying dynamic graphs is a sequence of graphs arranged by increasing snapshots of time. In this paper, we study the fundamental property of reachability in a time-varying graph over time and characterize the latency with respect to two metrics, namely store-or-advance latency and cut-through latency. Instead of expected value analysis, we concentrate on characterizing the exact probability distribution of routing l...

Basu, Prithwish; Ramanathan, Ram; Johnson, Matthew P

2010-01-01T23:59:59.000Z

324

SunShot Initiative: Policy and Regulatory Environment  

NLE Websites -- All DOE Office Websites (Extended Search)

Policy and Regulatory Environment Policy and Regulatory Environment to someone by E-mail Share SunShot Initiative: Policy and Regulatory Environment on Facebook Tweet about SunShot Initiative: Policy and Regulatory Environment on Twitter Bookmark SunShot Initiative: Policy and Regulatory Environment on Google Bookmark SunShot Initiative: Policy and Regulatory Environment on Delicious Rank SunShot Initiative: Policy and Regulatory Environment on Digg Find More places to share SunShot Initiative: Policy and Regulatory Environment on AddThis.com... Concentrating Solar Power Photovoltaics Systems Integration Balance of Systems Reducing Non-Hardware Costs Lowering Barriers Fostering Growth Policy and Regulatory Environment Photo of a man speaking while seated at a table with men and women surrounding him.

325

f(R) cosmological solutions with varying speed of light  

E-Print Network (OSTI)

We consider f(R) modified gravity theories for describing varying speed of light in a spatially flat FRW model, and find some exact solutions. Also we examine the dynamics of this model by dynamical system method assuming a LambdaCDM background and we find some exact solutions by considering the character of critical points of the theory in both formalisms. The behaviour of the speed of light is obtained.

Azam Izadi; Ali Shojai

2010-01-24T23:59:59.000Z

326

Means for ultrasonic testing when material properties vary  

SciTech Connect

A device is provided for maintaining constant sensitivity in an ultrasonic testing device, despite varying attenuation due to the properties of the material being tested. The device includes a sensor transducer for transmitting and receiving a test signal and a monitor transducer positioned so as to receive ultrasonic energy transmitted through the material to be tested. The received signal of the monitor transducer is utilized in analyzing data obtained from the sensor transducer.

Beller, Laurence S. (Idaho Falls, ID)

1979-01-01T23:59:59.000Z

327

Sources of uncertainty in the calculation of loads on supports of piping systems  

SciTech Connect

Loads on piping systems are obtained from an analysis of the piping system. The piping system analysis involves uncertainties from various sources. These sources of uncertainties are discussed and ranges of uncertainties are illustrated by simple examples. The sources of uncertainties are summarized and assigned a judgmental ranking of the typical relative significance of the uncertainty.

Rodabaugh, E.C.

1984-06-01T23:59:59.000Z

328

Measurement uncertainty analysis techniques applied to PV performance measurements  

DOE Green Energy (OSTI)

The purpose of this presentation is to provide a brief introduction to measurement uncertainty analysis, outline how it is done, and illustrate uncertainty analysis with examples drawn from the PV field, with particular emphasis toward its use in PV performance measurements. The uncertainty information we know and state concerning a PV performance measurement or a module test result determines, to a significant extent, the value and quality of that result. What is measurement uncertainty analysis? It is an outgrowth of what has commonly been called error analysis. But uncertainty analysis, a more recent development, gives greater insight into measurement processes and tests, experiments, or calibration results. Uncertainty analysis gives us an estimate of the I interval about a measured value or an experiment`s final result within which we believe the true value of that quantity will lie. Why should we take the time to perform an uncertainty analysis? A rigorous measurement uncertainty analysis: Increases the credibility and value of research results; allows comparisons of results from different labs; helps improve experiment design and identifies where changes are needed to achieve stated objectives (through use of the pre-test analysis); plays a significant role in validating measurements and experimental results, and in demonstrating (through the post-test analysis) that valid data have been acquired; reduces the risk of making erroneous decisions; demonstrates quality assurance and quality control measures have been accomplished; define Valid Data as data having known and documented paths of: Origin, including theory; measurements; traceability to measurement standards; computations; uncertainty analysis of results.

Wells, C.

1992-10-01T23:59:59.000Z

329

PULCINELLA -- A General Tool for Propagating Uncertainty in Valuation Networks  

E-Print Network (OSTI)

We present PULCinella and its use in comparing uncertainty theories. PULCinella is a general tool for Propagating Uncertainty based on the Local Computation technique of Shafer and Shenoy. It may be specialized to different uncertainty theories: at the moment, Pulcinella can propagate probabilities, belief functions, Boolean values, and possibilities. Moreover, Pulcinella allows the user to easily define his own specializations. To illustrate Pulcinella, we analyze two examples by using each of the four theories above. In the first one, we mainly focus on intrinsic differences between theories. In the second one, we take a knowledge engineer viewpoint, and check the adequacy of each theory to a given problem.

Alessandro Saffiotti; Elisabeth Umkehrer

1991-01-01T23:59:59.000Z

330

EPAct Transportation Regulatory Activities: Compliance Methods for State  

NLE Websites -- All DOE Office Websites (Extended Search)

Compliance Methods for State and Alternative Fuel Provider Fleets to someone by E-mail Share EPAct Transportation Regulatory Activities: Compliance Methods for State and Alternative Fuel Provider Fleets on Facebook Tweet about EPAct Transportation Regulatory Activities: Compliance Methods for State and Alternative Fuel Provider Fleets on Twitter Bookmark EPAct Transportation Regulatory Activities: Compliance Methods for State and Alternative Fuel Provider Fleets on Google Bookmark EPAct Transportation Regulatory Activities: Compliance Methods for State and Alternative Fuel Provider Fleets on Delicious Rank EPAct Transportation Regulatory Activities: Compliance Methods for State and Alternative Fuel Provider Fleets on Digg Find More places to share EPAct Transportation Regulatory

331

Reaching Site Closure for Groundwater under Multiple Regulatory Agencies  

SciTech Connect

Groundwater at the Connecticut Yankee Atomic Power Company (CYAPCO) Haddam Neck Plant (HNP) requires investigation of both radionuclides and chemical constituents in order to achieve closure. Cleanup criteria for groundwater are regulated both by federal and state agencies. These requirements vary in both numerical values as well as the duration of post remediation monitoring. The only consistent requirement is the development of a site conceptual model and an understanding of the hydrogeologic conditions that will govern contaminant transport and identify potential receptors. To successfully reach closure under each agency, it is paramount to understand the different requirements during the planning stages of the investigation. Therefore, the conceptual site model, groundwater transport mechanisms, and potential receptors must be defined. Once the hydrogeology is understood, a long term groundwater program can then be coordinated to meet each regulatory agency requirement to both terminate the NRC license and reach site closure under RCRA. Based on the different criteria, the CTDEP-LR (or RSR criteria) are not only bounding, but also requires the longest duration. As with most decommissioning efforts, regulatory attention is focused on the NRC, however, with the recent industry initiatives based on concern of tritium releases to groundwater at other plants, it is likely that the USEPA and state agencies may continue to drive site investigations. By recognizing these differences, data quality objectives can include all agency requirements, thus minimizing rework or duplicative efforts. CYAPCO intends to complete groundwater monitoring for the NRC and CTDEP-RD by July 2007. However, because shallow remediations are still being conducted, site closure under USEPA and CTDEP-LR is projected to be late 2011.

Glucksberg, N.; Shephard, Gene; Peters, Jay [MACTEC, Engineering and Consulting, Inc., 511 Congress Street, Portland, ME 04112 and 107 Audubon Road Suite 301, Wakefield MA 01880 (United States); Couture, B. [Connecticut Yankee Atomic Power Company, 362 Injun Hollow Road, East Hampton, CT 06424 (United States)

2008-01-15T23:59:59.000Z

332

Uncertainty Quantification Tools for Multiphase Flow Simulations using MFIX  

NLE Websites -- All DOE Office Websites (Extended Search)

Uncertainty Uncertainty Quantification Tools for Multiphase Flow Simulations using MFIX X. Hu 1 , A. Passalacqua 2 , R. O. Fox 1 1 Iowa State University, Department of Chemical and Biological Engineering, Ames, IA 2 Iowa State University, Department of Mechanical Engineering, Ames, IA Project Manager: Steve Seachman University Coal Research and Historically Black Colleges and Universities and Other Minority Institutions Contractors Review Conference Pittsburgh, June 11 th - 13 th 2013 X. Hu, A. Passalacqua, R. O. Fox (ISU) Uncertainty quantification DOE-UCR Review Meeting 2013 1 / 44 Outline 1 Introduction and background 2 Project objectives and milestones 3 Technical progress Univariate case Multivariate case Code structure 4 Future work X. Hu, A. Passalacqua, R. O. Fox (ISU) Uncertainty quantification DOE-UCR Review Meeting 2013 2 / 44 Introduction and background Outline 1 Introduction

333

Modeling aviation's global emissions, uncertainty analysis, and applications to policy  

E-Print Network (OSTI)

(cont.) fuel burn results below 3000 ft. For emissions, the emissions indices were the most influential uncertainties for the variance in model outputs. By employing the model, this thesis examined three policy options for ...

Lee, Joosung Joseph, 1974-

2005-01-01T23:59:59.000Z

334

Sensitivity Studies of the Models of Radar-Rainfall Uncertainties  

Science Conference Proceedings (OSTI)

It is well acknowledged that there are large uncertainties associated with the operational quantitative precipitation estimates produced by the U.S. national network of the Weather Surveillance Radar-1988 Doppler (WSR-88D). These errors result ...

Gabriele Villarini; Witold F. Krajewski

2010-02-01T23:59:59.000Z

335

Patent Protection, Market Uncertainty, and R&D Investment  

E-Print Network (OSTI)

Wesley M. Cohen. (2003). “R&D and the Patent Premuim,” NBERDoes market uncertainty reduce R&D investments? A firm-level2001). “Irreversibility of R&D investment and the adverse

Toole, Andrew A; Czarnitzki, Dirk

2006-01-01T23:59:59.000Z

336

Creating value from uncertainty : a study of ocean transportation contracting  

E-Print Network (OSTI)

How can financial tools like real options and hedging mitigate and create value from uncertainty in transportation? This paper describes these concepts and identifies research on them that has relevance to transportation. ...

Pálsson, Sigurjón

2005-01-01T23:59:59.000Z

337

A Simple Equation for Regional Climate Change and Associated Uncertainty  

Science Conference Proceedings (OSTI)

Simple equations are developed to express regional climate changes for the twenty-first century and associated uncertainty in terms of the global temperature change (GTC) without a dependence on the underlying emission pathways. The equations are ...

Filippo Giorgi

2008-04-01T23:59:59.000Z

338

Reducing CO2 Emissions: Technology, Uncertainty, Decision Making...  

NLE Websites -- All DOE Office Websites (Extended Search)

Reducing CO2 Emissions: Technology, Uncertainty, Decision Making and Consumer Behavior Speaker(s): Ins Magarida Lima de Azevedo Date: October 31, 2012 - 4:00pm Location: 90-3122...

339

Uncertainties in the Anti-neutrino Production at Nuclear Reactors  

E-Print Network (OSTI)

39] “Improving Thermal Power Accuracy and Plant Safety WhileCanyon Power Plant (DCPP) (California, USA), the thermalthermal power measure- ments and ?ssion rate calculations. The uncertainties in these quantities for commercial power plants

Djurcic, Zelimir

2009-01-01T23:59:59.000Z

340

Uncertainty management in a distributed knowledge based system  

Science Conference Proceedings (OSTI)

In many situations, a knowledge source may not give definite hypothesis; it can only express its belief and disbelief in multiple hypotheses, We present a scheme of uncertainty management in such a system. Disbelief is given a considerable importance ...

Naseem A. Khan; Ramesh Jain

1985-08-01T23:59:59.000Z

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


341

Investment and Upgrade in Distributed Generation under Uncertainty  

E-Print Network (OSTI)

of the uncertainty in the natural gas price. Treat- ment ofits exposure to risk from natural gas price volatility. Inits exposure to the natural gas price and maximising its

Siddiqui, Afzal

2008-01-01T23:59:59.000Z

342

Analysis and reduction of chemical models under uncertainty.  

SciTech Connect

While models of combustion processes have been successful in developing engines with improved fuel economy, more costly simulations are required to accurately model pollution chemistry. These simulations will also involve significant parametric uncertainties. Computational singular perturbation (CSP) and polynomial chaos-uncertainty quantification (PC-UQ) can be used to mitigate the additional computational cost of modeling combustion with uncertain parameters. PC-UQ was used to interrogate and analyze the Davis-Skodje model, where the deterministic parameter in the model was replaced with an uncertain parameter. In addition, PC-UQ was combined with CSP to explore how model reduction could be combined with uncertainty quantification to understand how reduced models are affected by parametric uncertainty.

Oxberry, Geoff; Debusschere, Bert J.; Najm, Habib N.

2008-08-01T23:59:59.000Z

343

Quantifying Global Uncertainties in a Simple Microwave Rainfall Algorithm  

Science Conference Proceedings (OSTI)

While a large number of methods exist in the literature for retrieving rainfall from passive microwave brightness temperatures, little has been written about the quantitative assessment of the expected uncertainties in these rainfall products at ...

Christian Kummerow; Wesley Berg; Jody Thomas-Stahle; Hirohiko Masunaga

2006-01-01T23:59:59.000Z

344

Analysis of automated highway system risks and uncertainties. Volume 5  

SciTech Connect

This volume describes a risk analysis performed to help identify important Automated Highway System (AHS) deployment uncertainties and quantify their effect on costs and benefits for a range of AHS deployment scenarios. The analysis identified a suite of key factors affecting vehicle and roadway costs, capacities and market penetrations for alternative AHS deployment scenarios. A systematic protocol was utilized for obtaining expert judgments of key factor uncertainties in the form of subjective probability percentile assessments. Based on these assessments, probability distributions on vehicle and roadway costs, capacity and market penetration were developed for the different scenarios. The cost/benefit risk methodology and analysis provide insights by showing how uncertainties in key factors translate into uncertainties in summary cost/benefit indices.

Sicherman, A.

1994-10-01T23:59:59.000Z

345

Uncertainty of Tropical Cyclone Best-Track Information  

Science Conference Proceedings (OSTI)

With the growing use of tropical cyclone (TC) best-track information for weather and climate applications, it is important to understand the uncertainties that are contained in the TC position and intensity information. Here, an attempt is made to ...

Ryan D. Torn; Chris Snyder

2012-06-01T23:59:59.000Z

346

Designing transit concession contracts to deal with uncertainty  

E-Print Network (OSTI)

This thesis proposes a performance regime structure for public transit concession contracts, designed so incentives to the concessionaire can be effective given significant uncertainty about the future operating conditions. ...

Blakey, Tara Naomi Chin

2006-01-01T23:59:59.000Z

347

Probabilistic Accident Consequence Uncertainty - A Joint CEC/USNRC Study  

Science Conference Proceedings (OSTI)

The joint USNRC/CEC consequence uncertainty study was chartered after the development of two new probabilistic accident consequence codes, MACCS in the U.S. and COSYMA in Europe. Both the USNRC and CEC had a vested interest in expanding the knowledge base of the uncertainty associated with consequence modeling, and teamed up to co-sponsor a consequence uncertainty study. The information acquired from the study was expected to provide understanding of the strengths and weaknesses of current models as well as a basis for direction of future research. This paper looks at the elicitation process implemented in the joint study and discusses some of the uncertainty distributions provided by eight panels of experts from the U.S. and Europe that were convened to provide responses to the elicitation. The phenomenological areas addressed by the expert panels include atmospheric dispersion and deposition, deposited material and external doses, food chain, early health effects, late health effects and internal dosimetry.

Gregory, Julie J.; Harper, Frederick T.

1999-07-28T23:59:59.000Z

348

Uncertainty in Greenhouse Emissions and Costs of Atmospheric Stabilization  

E-Print Network (OSTI)

We explore the uncertainty in projections of emissions, and costs of atmospheric stabilization applying the MIT Emissions Prediction and Policy Analysis model, a computable general equilibrium model of the global economy. ...

Webster, Mort D.

349

Integration of Uncertainty Information into Power System Operations  

Science Conference Proceedings (OSTI)

Contemporary power systems face uncertainties coming from multiple sources, including forecast errors of load, wind and solar generation, uninstructed deviation and forced outage of traditional generators, loss of transmission lines, and others. With increasing amounts of wind and solar generation being integrated into the system, these uncertainties have been growing significantly. It is critical important to build knowledge of major sources of uncertainty, learn how to simulate them, and then incorporate this information into the decision-making processes and power system operations, for better reliability and efficiency. This paper gives a comprehensive view on the sources of uncertainty in power systems, important characteristics, available models, and ways of their integration into system operations. It is primarily based on previous works conducted at the Pacific Northwest National Laboratory (PNNL).

Makarov, Yuri V.; Lu, Shuai; Samaan, Nader A.; Huang, Zhenyu; Subbarao, Krishnappa; Etingov, Pavel V.; Ma, Jian; Hafen, Ryan P.; Diao, Ruisheng; Lu, Ning

2011-10-10T23:59:59.000Z

350

Including model uncertainty in risk-informed decision-making  

E-Print Network (OSTI)

Model uncertainties can have a significant impact on decisions regarding licensing basis changes. We present a methodology to identify basic events in the risk assessment that have the potential to change the decision and ...

Reinert, Joshua M

2005-01-01T23:59:59.000Z

351

Stochastic and Robust Approaches to Optimization Problems under Uncertainty  

Science Conference Proceedings (OSTI)

In the last decade, optimization models under uncertainty have drawn much attention and efficient algorithms have been developed for solving those problems. This article presents the author's recent attempts conducted in collaboration with a number of ...

Masao Fukushima

2007-01-01T23:59:59.000Z

352

Reducing Uncertainty for the DeltaQ Duct Leakage Test  

E-Print Network (OSTI)

the DeltaQ duct Leakage Test”. ASHRAE Transactions (inof a new Duct Leakage Test: DeltaQ. LBNL 47308. Walker, I,Uncertainties in the DeltaQ test for Duct Leakage.

Walker, Iain S.; Sherman, Max H.; Dickerhoff, Darryl J.

2004-01-01T23:59:59.000Z

353

Real options approach to capacity planning under uncertainty  

E-Print Network (OSTI)

This thesis highlights the effectiveness of Real Options Analysis (ROA) in capacity planning decisions for engineering projects subject to uncertainty. This is in contrast to the irreversible decision-making proposed by ...

Mittal, Geetanjali, 1979-

2004-01-01T23:59:59.000Z

354

Estimating Monthly Precipitation Reconstruction Uncertainty Beginning in 1900  

Science Conference Proceedings (OSTI)

Uncertainty estimates are computed for a statistical reconstruction of global monthly precipitation that was developed in an earlier publication. The reconstruction combined the use of spatial correlations with gauge precipitation and correlations ...

Thomas M. Smith; Samuel S. P. Shen; Li Ren; Phillip A. Arkin

2013-06-01T23:59:59.000Z

355

Investment and Upgrade in Distributed Generation under Uncertainty  

E-Print Network (OSTI)

in the natural gas price. Treat- ment of uncertainty viato risk from natural gas price volatility. In particular,exposure to the natural gas price and maximising its cost

Siddiqui, Afzal

2008-01-01T23:59:59.000Z

356

Impact of PV forecasts uncertainty in batteries management in microgrids  

E-Print Network (OSTI)

Impact of PV forecasts uncertainty in batteries management in microgrids Andrea Michiorri Arthur-based battery schedule optimisation in microgrids in presence of network constraints. We examine a specific case

Recanati, Catherine

357

Uncertainties in the Radiative Forcing Due to Sulfate Aerosols  

Science Conference Proceedings (OSTI)

Radiative transfer calculations based on a new sulfate distribution from a chemistry-transport model simulation have been performed. A wide range of sensitivity experiments have been performed to illustrate the large uncertainty in the radiative ...

Gunnar Myhre; Frode Stordal; Tore F. Berglen; Jostein K. Sundet; Ivar S. A. Isaksen

2004-03-01T23:59:59.000Z

358

Quantification of Cloud Microphysical Parameterization Uncertainty Using Radar Reflectivity  

Science Conference Proceedings (OSTI)

Uncertainty in cloud microphysical parameterization—a leading order contribution to numerical weather prediction error—is estimated using a Markov chain Monte Carlo (MCMC) algorithm. An inversion is performed on 10 microphysical parameters using ...

Marcus van Lier-Walqui; Tomislava Vukicevic; Derek J. Posselt

2012-11-01T23:59:59.000Z

359

Ensemble Representation of Uncertainty in Lagrangian Satellite Rainfall Estimates  

Science Conference Proceedings (OSTI)

A new algorithm LSIM (Lagrangian Simulation) has been developed which enables the interpolation uncertainty present in Lagrangian satellite rainfall algorithms such as CMORPH to be characterized using an ensemble product. The new algorithm ...

T. J. Bellerby

360

Neural network uncertainty assessment using Bayesian statistics with application to remote sensing  

E-Print Network (OSTI)

Neural network uncertainty assessment using Bayesian statistics with application to remote sensing for many inversion problems in remote sensing; however, uncertainty estimates are rarely provided Meteorology and Atmospheric Dynamics: General or miscellaneous; KEYWORDS: remote sensing, uncertainty, neural

Aires, Filipe

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


361

Uncertainty Representation: Estimating Process Parameters for Forward Price Forecasting  

Science Conference Proceedings (OSTI)

Market prices set the value of electric power assets and contracts, yet forward prices are unavailable for time horizons relevant to most valuations. Price forecasts are inherently uncertain because the drivers of prices are uncertain, but equilibrating market forces also work to reduce the growth of uncertainty over time. Consequently, quantifying the degree of future price uncertainty is difficult, but has tremendous strategic potential for power companies seeking to value real options and invest in fl...

1999-12-10T23:59:59.000Z

362

Uncertainties in the Anti-neutrino Production at Nuclear Reactors  

Science Conference Proceedings (OSTI)

Anti-neutrino emission rates from nuclear reactors are determined from thermal power measurements and fission rate calculations. The uncertainties in these quantities for commercial power plants and their impact on the calculated interaction rates in {bar {nu}}{sub e} detectors is examined. We discuss reactor-to-reactor correlations between the leading uncertainties, and their relevance to reactor {bar {nu}}{sub e} experiments.

Djurcic, Zelimir; Detwiler, Jason A.; Piepke, Andreas; Foster Jr., Vince R.; Miller, Lester; Gratta, Giorgio

2008-08-06T23:59:59.000Z

363

Regulatory issues associated with the international oils & fats trade  

Science Conference Proceedings (OSTI)

FOSFA’s John Hancock reviews three major areas of regulation of the global trading of oils and fats. Regulatory issues associated with the international oils & fats trade Inform Magazine Inform Archives Regulatory issues associated with the interna

364

The Regulatory Process of the Energy Conservation Law in Japan  

NLE Websites -- All DOE Office Websites (Extended Search)

The Regulatory Process of the Energy Conservation Law in Japan Speaker(s): Taishi Sugiyama Date: March 26, 2002 - 12:00pm Location: Bldg. 90 We examined the regulatory process of...

365

Pursuing Energy Efficiency as a Hedge against Carbon Regulatory Risks: Current Resource Planning Practices in the West  

Science Conference Proceedings (OSTI)

Uncertainty surrounding the nature and timing of future carbon regulations poses a fundamental and far-reaching financial risk for electric utilities and their ratepayers. Long-term resource planning provides a potential framework within which utilities can assess carbon regulatory risk and evaluate options for mitigating exposure to this risk through investments in energy efficiency and other low-carbon resources. In this paper, we examine current resource planning practices related to managing carbon regulatory risk, based on a comparative analysis of the most-recent long-term resource plans filed by fifteen major utilities in the Western U.S. First, we compare the assumptions and methods used by utilities to assess carbon regulatory risk and to evaluate energy efficiency as a risk mitigation option. Although most utilities have made important strides in beginning to address carbon regulatory risk within their resource plan, we also identify a number of opportunities for improvement and offer recommendations for resource planners and state regulators to consider. We also summarize the composition and carbon intensity of the preferred resource portfolios selected by the fifteen Western utilities, highlighting the contribution of energy efficiency and its impact on the carbon intensity of utilities' proposed resource strategies. Energy efficiency and renewables are the dominant low-carbon resources included in utilities' preferred portfolios. Across the fifteen utilities, energy efficiency constitutes anywhere from 6percent to almost 50percent of the preferred portfolio energy resources, and represents 22percent of all incremental resources in aggregate.

Barbose, Galen; Wiser, Ryan; Phadke, Amol; Goldman, Charles

2008-08-01T23:59:59.000Z

366

Pursuing Energy Efficiency as a Hedge against Carbon Regulatory Risks: Current Resource Planning Practices in the West  

Science Conference Proceedings (OSTI)

Uncertainty surrounding the nature and timing of future carbon regulations poses a fundamental and far-reaching financial risk for electric utilities and their ratepayers. Long-term resource planning provides a potential framework within which utilities can assess carbon regulatory risk and evaluate options for mitigating exposure to this risk through investments in energy efficiency and other low-carbon resources. In this paper, we examine current resource planning practices related to managing carbon regulatory risk, based on a comparative analysis of the most-recent long-term resource plans filed by fifteen major utilities in the Western U.S. First, we compare the assumptions and methods used by utilities to assess carbon regulatory risk and to evaluate energy efficiency as a risk mitigation option. Although most utilities have made important strides in beginning to address carbon regulatory risk within their resource plan, we also identify a number of opportunities for improvement and offer recommendations for resource planners and state regulators to consider. We also summarize the composition and carbon intensity of the preferred resource portfolios selected by the fifteen Western utilities, highlighting the contribution of energy efficiency and its impact on the carbon intensity of utilities' proposed resource strategies. Energy efficiency and renewables are the dominant low-carbon resources included in utilities' preferred portfolios. Across the fifteen utilities, energy efficiency constitutes anywhere from 6percent to almost 50percent of the preferred portfolio energy resources, and represents 22percent of all incremental resources in aggregate.

Barbose, Galen; Wiser, Ryan; Phadke, Amol; Goldman, Charles

2008-07-11T23:59:59.000Z

367

River meander modeling and confronting uncertainty.  

SciTech Connect

This study examines the meandering phenomenon as it occurs in media throughout terrestrial, glacial, atmospheric, and aquatic environments. Analysis of the minimum energy principle, along with theories of Coriolis forces (and random walks to explain the meandering phenomenon) found that these theories apply at different temporal and spatial scales. Coriolis forces might induce topological changes resulting in meandering planforms. The minimum energy principle might explain how these forces combine to limit the sinuosity to depth and width ratios that are common throughout various media. The study then compares the first order analytical solutions for flow field by Ikeda, et al. (1981) and Johannesson and Parker (1989b). Ikeda's et al. linear bank erosion model was implemented to predict the rate of bank erosion in which the bank erosion coefficient is treated as a stochastic variable that varies with physical properties of the bank (e.g., cohesiveness, stratigraphy, or vegetation density). The developed model was used to predict the evolution of meandering planforms. Then, the modeling results were analyzed and compared to the observed data. Since the migration of a meandering channel consists of downstream translation, lateral expansion, and downstream or upstream rotations several measures are formulated in order to determine which of the resulting planforms is closest to the experimental measured one. Results from the deterministic model highly depend on the calibrated erosion coefficient. Since field measurements are always limited, the stochastic model yielded more realistic predictions of meandering planform evolutions. Due to the random nature of bank erosion coefficient, the meandering planform evolution is a stochastic process that can only be accurately predicted by a stochastic model.

Posner, Ari J. (University of Arizona Tucson, AZ)

2011-05-01T23:59:59.000Z

368

Nielsen-Olesen vortex in varying-alpha theories  

E-Print Network (OSTI)

We consider soliton solutions to Bekenstein's theory, for which the fine structure constant $\\alpha=e^2/(4\\pi\\hbar c)$ is allowed to vary due to the presence of a dielectric field pervading the vacuum. More specifically we investigate the effects of a varying $\\alpha$ upon a complex scalar field with a U(1) electromagnetic gauge symmetry subject to spontaneous symmetry breaking. We find vortex solutions to this theory, similar to the Nielsen-Olesen vortex. Near the vortex core the electric charge is typically much larger than far away from the string, lending these strings a superconducting flavour. In general the dielectric field coats the usual local string with a global string envelope. We discuss the cosmological implications of networks of such strings, with particular emphasis on their ability to generate inhomogeneous recombination scenarios. We also consider the possibility of the dielectric being a charged free field. Even though the vacuum of such a field is trivial, we find that the dielectric arranges itself in the shape of a local string, with a quantized magnetic flux at the core -- presumably borrowing these topological features from the underlying Nielsen-Olesen vortex.

J. Magueijo; H. Sandvik; T. W. B. Kibble

2001-01-15T23:59:59.000Z

369

A model of a varying Ghost Dark energy  

E-Print Network (OSTI)

Motivated by recent developments in Cosmology we would like to assume a possibility of the existence of varying Ghost Dark energy. Ghost Dark energy like other models was introduced recently as a model of dark energy. As accepted in general, in GR dark energy is a possible way to explain accelerated expansion of the Universe reported from different experimental data. From the beginning we would like to stress the fact, that proposed modifications are based on our believe and probably for this reason there is not a well establish physical theory behind the models. Concerning to the origin of varying Ghost dark energy, we can assume an existence of some interaction (and unknown physics behind it), between Ghost Dark energy and a fluid and last component during interaction evaporated completely making sense of the proposed effect. Moreover, we can assume that this was in epochs and scales which are unreachable by nowadays experiments. The same assumptions could be accepted or proposed for the interaction terms.

Martiros Khurshudyan; Amalya Khurshudyan

2013-07-30T23:59:59.000Z

370

Quantum capacity under adversarial quantum noise: arbitrarily varying quantum channels  

E-Print Network (OSTI)

We investigate entanglement transmission over an unknown channel in the presence of a third party (called the adversary), which is enabled to choose the channel from a given set of memoryless but non-stationary channels without informing the legitimate sender and receiver about the particular choice that he made. This channel model is called arbitrarily varying quantum channel (AVQC). We derive a quantum version of Ahlswede's dichotomy for classical arbitrarily varying channels. This includes a regularized formula for the common randomness-assisted capacity for entanglement transmission of an AVQC. Quite surprisingly and in contrast to the classical analog of the problem involving the maximal and average error probability, we find that the capacity for entanglement transmission of an AVQC always equals its strong subspace transmission capacity. These results are accompanied by different notions of symmetrizability (zero-capacity conditions) as well as by conditions for an AVQC to have a capacity described by a single-letter formula. In he final part of the paper the capacity of the erasure-AVQC is computed and some light shed on the connection between AVQCs and zero-error capacities. Additionally, we show by entirely elementary and operational arguments motivated by the theory of AVQCs that the quantum, classical, and entanglement-assisted zero-error capacities of quantum channels are generically zero and are discontinuous at every positivity point.

Rudolf Ahlswede; Igor Bjelakovic; Holger Boche; Janis Noetzel

2010-10-03T23:59:59.000Z

371

US Department of Energys Regulatory Negotiations Convening...  

NLE Websites -- All DOE Office Websites (Extended Search)

Regulatory Negotiations Convening on Commercial Certification for Heating, Ventilating, Air-Conditioning, and Refrigeration Equipment Public Information for Convening Interviews...

372

Lawrence E. Jones, Ph.D. Vice President, Regulatory Affairs ...  

Science Conference Proceedings (OSTI)

... Vice President, Regulatory Affairs, Policy and Industry Relations, North America. ... Aid Wind Integration” published in North American Wind Power Vol ...

2012-03-13T23:59:59.000Z

373

EIA - Smart Grid Legislative and Regulatory Policies and Case Studies  

U.S. Energy Information Administration (EIA)

State Energy Data System ... Smart Grid Legislative and Regulatory ... Recent activity includes the deployment of smart meters, distribution automation and ...

374

Optimal Control of Distributed Energy Resources and Demand Response under Uncertainty  

E-Print Network (OSTI)

Energy Resources and Demand Response under Uncertainty AfzalEnergy Resources and Demand Response under Uncertainty ?DER in conjunction with demand response (DR): the expected

Siddiqui, Afzal

2010-01-01T23:59:59.000Z

375

Uncertainty and sensitivity analysis for long-running computer codes : a critical review  

E-Print Network (OSTI)

This thesis presents a critical review of existing methods for performing probabilistic uncertainty and sensitivity analysis for complex, computationally expensive simulation models. Uncertainty analysis (UA) methods ...

Langewisch, Dustin R

2010-01-01T23:59:59.000Z

376

Regulatory governance in African telecommunications: Testing the resource curse hypothesis  

Science Conference Proceedings (OSTI)

This paper examines regulatory governance in the context of African telecommunications. Though there is already a substantial literature devoted to the regulatory practices in developing countries, it generally conceptualizes the quality of regulation ... Keywords: Africa, Development, Paradox of plenty, Regulatory governance, Resource curse, Telecommunications regulation

Krishna Jayakar; Brandie Martin

2012-10-01T23:59:59.000Z

377

Uncertainty evaluation of delayed neutron decay parameters  

E-Print Network (OSTI)

In a nuclear reactor, delayed neutrons play a critical role in sustaining a controllable chain reaction. Delayed neutron’s relative yields and decay constants are very important for modeling reactivity control and have been studied for decades. Researchers have tried different experimental and numerical methods to assess these delayed neutron parameters. The reported parameter values vary widely, much more than the small statistical errors reported with these parameters. Interestingly, the reported parameters fit their individual measurement data well in spite of these differences. This dissertation focuses on evaluation of the errors and methods of delayed neutron relative yields and decay constants for thermal fission of U-235. Various numerical methods used to extract the delayed neutron parameter from the measured data, including Matrix Inverse, Levenberg-Marquardt, and Quasi-Newton methods, were studied extensively using simulated delayed neutron data. This simulated data was Poisson distributed around Keepin’s theoretical data. The extraction methods produced totally different results for the same data set, and some of the above numerical methods could not even find solutions for some data sets. Further investigation found that ill-conditioned matrices in the objective function were the reason for the inconsistent results. To find a reasonable solution with small variation, a regularization parameter was introduced using a numerical method called Ridge Regression. The results from the Ridge Regression method, in terms of goodness of fit to the data, were good and often better than the other methods. Due to the introduction of a regularization number in the algorithm, the fitted result contains a small additional bias, but this method can guarantee convergence no matter how large the coefficient matrix condition number. Both saturation and pulse modes were simulated to focus on different groups. Some of the factors that affect the solution stability were investigated including initial count rate, sample flight time, initial guess values. Finally, because comparing reported delayed neutron parameters among different experiments is useless to determine if their data actually differs, methods are proposed that can be used to compare the delayed neutron data sets.

Wang, Jinkai

2008-12-01T23:59:59.000Z

378

On the Accuracy of Regulatory Cost Estimates  

NLE Websites -- All DOE Office Websites (Extended Search)

On the Accuracy of Regulatory Cost Estimates On the Accuracy of Regulatory Cost Estimates Speaker(s): Richard Morgenstern Date: December 10, 2013 - 12:00pm - 1:00pm Location: 90-3122 Seminar Host/Point of Contact: Alan Sanstad Margaret Taylor Over the past several decades, the U.S. has seen a gradual reduction in economic regulation and a simultaneous increase in safety, health, environmental, and other social regulations. Especially with the prospect of regulation on greenhouse gases under the Clean Air Act, there is growing concern about the costs, effectiveness, and benefits of federal rules. While prospective or ex ante analyses of the benefits and costs of major federal regulations are now a standard part of government operations, retrospective or ex post analyses, focusing on measurements of actual

379

Depleted Uranium Uses: Regulatory Requirements and Issues  

NLE Websites -- All DOE Office Websites (Extended Search)

1 Depleted Uranium Uses Depleted Uranium Uses Regulatory Requirements Regulatory Requirements and Issues and Issues Nancy L. Ranek Nancy L. Ranek Argonne National Laboratory Argonne National Laboratory August 5, 1998 August 5, 1998 Beneficial Reuse '98 Beneficial Reuse '98 Knoxville, TN Knoxville, TN NOTES Work Performed for: Office of Facilities (NE-40) Office of Nuclear Energy, Science and Technology U.S. Department of Energy Work Performed by: Environmental Assessment Division Argonne National Laboratory 955 L'Enfant Plaza North, S.W. Washington, D.C. 20024 Phone: 202/488-2417 E-mail: ranekn@smtplink.dis.anl.gov 2 2 2 Programmatic Environmental Programmatic Environmental Impact Statement (PEIS) Impact Statement (PEIS) Draft PEIS Published 12/97 * Preferred Alternative = 100% Use

380

Regulatory Burden RFI - Hussmann Corporation Response  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Regulatory Burden RFI - Hussmann Corporation Response Regulatory Burden RFI - Hussmann Corporation Response January 3, 2012 Below are the list of questions with answers from the December 5 RFI: (1) How can the Department best promote meaningful periodic reviews of its existing rules and how can it best identify those rules that might be modified, streamlined, expanded, or repealed? DOE should maintain a list of all manufacturers impacted by legislation/rules and make sure these manufacturers are notified of all rule changes. A full review cycle should be done periodically and provide adequate time for ALL manufacturers to respond. (2) What factors should the agency consider in selecting and prioritizing rules and reporting requirements for review? Cost (initial and maintenance) should be considered as well as return on investment. Also,

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


381

NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555  

Office of Legacy Management (LM)

REGULATORY COMMISSION REGULATORY COMMISSION WASHINGTON, D. C. 20555 JAN 2 2 1982 -/ Departmznt'of Ene,rgy ATTN : Dr. William E. Mott, Director Environmental and Safety Engineering Division (EP-32) Washington, D.C. 20545 Dear Dr. Mott: Enclosed is the list of contaminated'or potentially contaminated sites that I promised to send you during our recent meeting. The sites have been broken down into the followi,ng four categories: 1. Sites with known contamination that have never been 1 icensed. 2. Formerly licensed sites with known contamination. 3. Currently licensed sites that are being decontaminated prior to decoronissioning. 4. A list of formerly licensed sites that need to be visited to determine if they have been properly decontaminated prior to decommissioning.

382

Geothermal Regulatory Roadmap | OpenEI Community  

Open Energy Info (EERE)

Geothermal Regulatory Roadmap Geothermal Regulatory Roadmap Home > Features > Groups Content Group Activity By term Q & A Feeds Content type Blog entry Discussion Document Event Poll Question Keywords Author Apply Kyoung Geothermal NEPA Workshop at GRC Posted by: Kyoung 14 Oct 2013 - 20:19 On Tuesday, October 2, the Geothermal Technology Office and the National Renewable Energy Laboratory held a 1/2-day NEPA workshop. The workshop was held at the MGM Grand in Las Vegas, in conjunction... Tags: Categorical Exclusions, CX, Database, EA, EIS, FONSI, GEA, GRC, GRR, NEPA Jweers New Robust References! Posted by: Jweers 7 Aug 2013 - 18:23 Check out the new Reference Form. Adding... 1 comment(s) Tags: citation, citing, developer, formatting, reference, Semantic Mediawiki, wiki Graham7781

383

Geothermal Regulatory Roadmap | OpenEI Community  

Open Energy Info (EERE)

geothermal geothermal Type Term Title Author Replies Last Post sort icon Blog entry geothermal Geothermal Regulatory Roadmap featured on NREL Now Graham7781 5 Aug 2013 - 13:18 Blog entry geothermal GRR 3rd Quarter - Stakeholder Update Meeting Kyoung 9 Jul 2013 - 20:57 Blog entry geothermal GRR 2nd Quarter - Stakeholder Update Meeting Kyoung 2 May 2013 - 14:06 Groups Menu You must login in order to post into this group. Recent content Geothermal NEPA Workshop at GRC New Robust References! Geothermal Regulatory Roadmap featured on NREL Now Texas Legal Review GRR 3rd Quarter - Stakeholder Update Meeting more Group members (12) Managers: Kyoung Recent members: AfifaAwan Dklein2012 Jweers AGill Agentile Kwitherbee Kjking Payne Dhoefner Twnrel Alevine 429 Throttled (bot load)

384

NUCLEAR REGULATORY,.COMMISSION REGION I  

Office of Legacy Management (LM)

REGULATORY,.COMMISSION REGULATORY,.COMMISSION REGION I lY,.COMMISSION 475 ALLENDALE ROAD KlNG OF PRUSSIA. PENNSYLVANIA 194061415 GION I NOALE ROAD ENNSYLVANlA 194061415 MAY I5 1996 MAY I5 1996 Docket No. 040-07964 License No. SlJ (Rs Heyman Properties Attention: Mr. John S. Russo Facility Manager 333 Post Road West Westport, CT 06881 SUBJECT: INSPECTION NO. 040-07964/96-001 Dear Mr. Russo: On April 15, 1996, Todd J. Jackson of this office conducted a routine inspection at 737 Canal Street, Stamford, Connecticut of activities o Oliver Incorporated, authorized by Atomic Energy Commission (AEC) Lit SUB-00967. The inspection consisted of observations by the inspect0 interviews with personnel, and a radiological survey by the inspector Jackson was accompanied on this inspection by representatives of the

385

Natural Gas Regulatory Policy: Current Issues  

E-Print Network (OSTI)

"Many changes have occurred in recent months in both federal and state natural gas regulation. Those changes have increased the options of industrial energy consumers for purchasing and moving natural gas. This panel will discuss important developments in federal and state regulatory arenas and their impacts on purchasing options. Among the issues discussed will be: 1. Federal Regulation a. Self-implementing transportation b. Service obligation c. Pipeline capacity brokering d. Non-regulated and partially regulated sales e. FERC Order No. 500 f. Rate treatments impacts 2. State Regulation a. Prorationing impacts b. Federal preemption of state conservation authority 3. Regulatory and Contract Problems Facing the Natural Gas Marketer 4. The Contours of the Current Marketplace "

Watkins, G.

1988-09-01T23:59:59.000Z

386

Basis for Changing Chromium Regulatory Health Values  

Science Conference Proceedings (OSTI)

Hexavalent chromium, Cr(VI), acts as a chemical driver for many human health risk assessments under the Clean Air Act Amendments of 1990 and other regulatory programs across a range of industrial sectors, including the electric power sector. To characterize and manage the health and environmental risk related to toxics, agencies and the regulated sectors must rely on the development of scientific estimates of the exposure-to-response relationship to understand and quantify the potential hazard ...

2012-12-31T23:59:59.000Z

387

Currency Crises and Uncertainty About Fundamentals. IMF Working Paper 02/3  

E-Print Network (OSTI)

This paper studies the role of uncertainty about fundamentals in currency crises from both a theoretical and an empirical perspective. We Þnd evidence — based on a monthly dataset of Consensus forecasts for six Asian countries in the period January 1995- May 2001 — conÞrming the theoretical predictions (from both unique- and multipleequilibria models) that: i) speculative attacks depend not only on actual and expected fundamentals but also on the variance of speculators’ expectations about them; ii) thesignoftheeffect of the variance depends on whether expected fundamentals are “good ” or “bad. ” These results are robust to the deÞnition of exchange rate pressure indices, the estimation sample (pre-crisis vs. full sample), the method chosen to avoid spurious correlations, and possible time-varying coefficients for the mean, the variance, and the threshold separating good from bad expected fundamentals.

Alessandro Prati; Massimo Sbracia; Bianca Bucci; Rosanna Gattodoro; Ra Liccardi

2002-01-01T23:59:59.000Z

388

Sensitivity and uncertainty analysis applied to the JHR reactivity prediction  

SciTech Connect

The on-going AMMON program in EOLE reactor at CEA Cadarache (France) provides experimental results to qualify the HORUS-3D/N neutronics calculation scheme used for the design and safety studies of the new Material Testing Jules Horowitz Reactor (JHR). This paper presents the determination of technological and nuclear data uncertainties on the core reactivity and the propagation of the latter from the AMMON experiment to JHR. The technological uncertainty propagation was performed with a direct perturbation methodology using the 3D French stochastic code TRIPOLI4 and a statistical methodology using the 2D French deterministic code APOLLO2-MOC which leads to a value of 289 pcm (1{sigma}). The Nuclear Data uncertainty propagation relies on a sensitivity study on the main isotopes and the use of a retroactive marginalization method applied to the JEFF 3.1.1 {sup 27}Al evaluation in order to obtain a realistic multi-group covariance matrix associated with the considered evaluation. This nuclear data uncertainty propagation leads to a K{sub eff} uncertainty of 624 pcm for the JHR core and 684 pcm for the AMMON reference configuration core. Finally, transposition and reduction of the prior uncertainty were made using the Representativity method which demonstrates the similarity of the AMMON experiment with JHR (the representativity factor is 0.95). The final impact of JEFF 3.1.1 nuclear data on the Begin Of Life (BOL) JHR reactivity calculated by the HORUS-3D/N V4.0 is a bias of +216 pcm with an associated posterior uncertainty of 304 pcm (1{sigma}). (authors)

Leray, O.; Vaglio-Gaudard, C.; Hudelot, J. P.; Santamarina, A.; Noguere, G. [CEA, DER, SPRC, F-13108 St Paul-Lez-Durance (France); Di-Salvo, J. [CEA, DER, SPEx, F-13108 St Paul-Lez-Durance (France)

2012-07-01T23:59:59.000Z

389

Impacts of Varying Penetration of Distributed Resources with & without Volt/Var Control: Case Study of Varying Load Types  

SciTech Connect

This paper provides a follow-up to an earlier one on impacts of distributed energy resources (DR) on distribution feeders. As DR penetration level on the feeder increases, there can be impacts to distribution system/feeder capacity, line losses, and voltage regulation. These can vary as the penetration level reaches the capacity of the distribution feeder/system or loading. The question is how high of a DR level can be accommodated without any major changes to system operation, system design and protection. Our objective for this work was to address the question of how the DR impacts vary in regards to both DR voltage regulation capability and load mix. A dynamic analysis was used to focus on the impacts of DR with and without volt/var control with different load composition on the distribution feeder. The study considered an example 10MVA distribution feeder in which two inverter-based DRs were used to provide voltage regulation. The results due to DR without voltage regulation capability are compared with DR capable of providing local (at its bus) voltage regulation. The analysis was repeated for four different feeder load compositions consisting of (1) constant power, (2) constant impedance, (3) constant current and (4) ZIP (equal combination of previous three).

Rizy, D Tom [ORNL; Li, Huijuan [ORNL; Li, Fangxing [ORNL; Xu, Yan [ORNL; Adhikari, Sarina [ORNL; Irminger, Philip [ORNL

2011-01-01T23:59:59.000Z

390

Constraining PCP Violating Varying Alpha Theory through Laboratory Experiments  

Science Conference Proceedings (OSTI)

In this report we have studied the implication of a parity and charge-parity (PCP) violating interaction in varying alpha theory. Due to this interaction, the state of photon polarization can change when it passes through a strong background magnetic field. We have calculated the optical rotation and ellipticity of the plane of polarization of an electromagnetic wave and tested our results against different laboratory experiments. Our model contains a PCP violating parameter {beta} and a scale of alpha variation {omega}. By analyzing the laboratory experimental data, we found the most stringent constraints on our model parameters to be 1 {le} {omega} {le} 10{sup 13} GeV{sup 2} and -0.5 {le} {beta} {le} 0.5. We also found that with the existing experimental input parameters it is very difficult to detect the ellipticity in the near future.

Maity, Debaprasad; /NCTS, Taipei /Taiwan, Natl. Taiwan U.; Chen, Pisin; /NCTS, Taipei /Taiwan, Natl. Taiwan U. /KIPAC, Menlo Park /SLAC

2012-06-06T23:59:59.000Z

391

Collaboration between varied organizations develops larger, more precise  

NLE Websites -- All DOE Office Websites (Extended Search)

The Large Area Picosecond Photodetector (LAPPD) collaboration has developed cheaper, larger, more robust microchannel plates, seen here at a test facility at Argonne. The LAPPD team has partnered with Massachusetts-based fiber optics company INCOM Inc. to manufacture the plates. Click to enlarge. The Large Area Picosecond Photodetector (LAPPD) collaboration has developed cheaper, larger, more robust microchannel plates, seen here at a test facility at Argonne. The LAPPD team has partnered with Massachusetts-based fiber optics company INCOM Inc. to manufacture the plates. Click to enlarge. The Large Area Picosecond Photodetector (LAPPD) collaboration has developed cheaper, larger, more robust microchannel plates, seen here at a test facility at Argonne. The LAPPD team has partnered with Massachusetts-based fiber optics company INCOM Inc. to manufacture the plates. Click to enlarge. Collaboration between varied organizations develops larger, more precise photodetectors for the market By Chelsea Leu * November 5, 2013 Tweet EmailPrint Scientific particle detectors, medical imaging devices and cargo scanners

392

Product Binding Varies Dramatically between Processive and Nonprocessive Cellulase Enzymes  

DOE Green Energy (OSTI)

Cellulases hydrolyze {beta}-1,4 glycosidic linkages in cellulose, which are among the most prevalent and stable bonds in Nature. Cellulases comprise many glycoside hydrolase families and exist as processive or nonprocessive enzymes. Product inhibition negatively impacts cellulase action, but experimental measurements of product-binding constants vary significantly, and there is little consensus on the importance of this phenomenon. To provide molecular level insights into cellulase product inhibition, we examine the impact of product binding on processive and nonprocessive cellulases by calculating the binding free energy of cellobiose to the product sites of catalytic domains of processive and nonprocessive enzymes from glycoside hydrolase families 6 and 7. The results suggest that cellobiose binds to processive cellulases much more strongly than nonprocessive cellulases. We also predict that the presence of a cellodextrin bound in the reactant site of the catalytic domain, which is present during enzymatic catalysis, has no effect on product binding in nonprocessive cellulases, whereas it significantly increases product binding to processive cellulases. This difference in product binding correlates with hydrogen bonding between the substrate-side ligand and the cellobiose product in processive cellulase tunnels and the additional stabilization from the longer tunnel-forming loops. The hydrogen bonds between the substrate- and product-side ligands are disrupted by water in nonprocessive cellulase clefts, and the lack of long tunnel-forming loops results in lower affinity of the product ligand. These findings provide new insights into the large discrepancies reported for binding constants for cellulases and suggest that product inhibition will vary significantly based on the amount of productive binding for processive cellulases on cellulose.

Bu, L.; Nimlos, M. R.; Shirts, M. R.; Stahlberg, J.; Himmel, M. E.; Crowley, M. F.; Beckham, G. T.

2012-07-13T23:59:59.000Z

393

From the Editors---Brainstorming, Multiplicative Utilities, Partial Information on Probabilities or Outcomes, and Regulatory Focus  

Science Conference Proceedings (OSTI)

This is the final issue under this Editor-in-Chief, so this column is fittingly coauthored with the associate editors, whose terms also end with this issue, to emphasize their major role in the leadership of the journal. We first introduce incoming Editor-in-Chief ... Keywords: Eagle Airlines, QALYs, alternatives, applications, copula, correlation aversion, creation of, decision analysis, decision trees, dependence, editorial, framing, fuzzy logic, gains, health utility analysis, identification of, interval arithmetic, life-cycle consumption planning, losses, medical decision making, multiattribute utility theory, objectives, practice, public policy, regulatory focus, risk, risk aversion, risk proneness, self-regulation, sensitivity to dependence, simulation, standard gamble, time trade-off, uncertainty, value-focused brainstorming, value-focused thinking, verbal protocols

L. Robin Keller; Ali Abbas; J. Eric Bickel; Vicki M. Bier; David V. Budescu; John C. Butler; Enrico Diecidue; Robin L. Dillon-Merrill; Raimo P. Hämäläinen; Kenneth C. Lichtendahl; Jason R. W. Merrick; Jay R. Simon; George Wu

2012-12-01T23:59:59.000Z

394

EPAct Transportation Regulatory Activities: National Grid Exceeds EPAct  

NLE Websites -- All DOE Office Websites (Extended Search)

National National Grid Exceeds EPAct Requirements Deploying Natural Gas Technology to someone by E-mail Share EPAct Transportation Regulatory Activities: National Grid Exceeds EPAct Requirements Deploying Natural Gas Technology on Facebook Tweet about EPAct Transportation Regulatory Activities: National Grid Exceeds EPAct Requirements Deploying Natural Gas Technology on Twitter Bookmark EPAct Transportation Regulatory Activities: National Grid Exceeds EPAct Requirements Deploying Natural Gas Technology on Google Bookmark EPAct Transportation Regulatory Activities: National Grid Exceeds EPAct Requirements Deploying Natural Gas Technology on Delicious Rank EPAct Transportation Regulatory Activities: National Grid Exceeds EPAct Requirements Deploying Natural Gas Technology on Digg

395

Visual Scanning Hartmann Optical Tester (VSHOT) Uncertainty Analysis (Milestone Report)  

DOE Green Energy (OSTI)

In 1997, an uncertainty analysis was conducted of the Video Scanning Hartmann Optical Tester (VSHOT). In 2010, we have completed a new analysis, based primarily on the geometric optics of the system, and it shows sensitivities to various design and operational parameters. We discuss sources of error with measuring devices, instrument calibrations, and operator measurements for a parabolic trough mirror panel test. These help to guide the operator in proper setup, and help end-users to understand the data they are provided. We include both the systematic (bias) and random (precision) errors for VSHOT testing and their contributions to the uncertainty. The contributing factors we considered in this study are: target tilt; target face to laser output distance; instrument vertical offset; laser output angle; distance between the tool and the test piece; camera calibration; and laser scanner. These contributing factors were applied to the calculated slope error, focal length, and test article tilt that are generated by the VSHOT data processing. Results show the estimated 2-sigma uncertainty in slope error for a parabolic trough line scan test to be +/-0.2 milliradians; uncertainty in the focal length is +/- 0.1 mm, and the uncertainty in test article tilt is +/- 0.04 milliradians.

Gray, A.; Lewandowski, A.; Wendelin, T.

2010-10-01T23:59:59.000Z

396

Scaling Characteristics of Soil Hydraulic Parameters at Varying Spatial Resolutions  

E-Print Network (OSTI)

This dissertation focuses on the challenge of soil hydraulic parameter scaling in soil hydrology and related applications in general; and, in particular, the upscaling of these parameters to provide effective values at coarse scales. Soil hydraulic properties are required for many hydrological and ecological models at their representative scales. Prediction accuracy of these models is highly dependent on the quality of the model input parameters. However, measurement of parameter data at all such required scales is impractical as that would entail huge outlays of finance, time and effort. Hence, alternate methods of estimating the soil hydraulic parameters at the scales of interest are necessary. Two approaches to bridge this gap between the measurement and application scales for soil hydraulic parameters are presented in this dissertation. The first one is a stochastic approach, based on artificial neural networks (ANNs) applied within a Bayesian framework. ANNs have been used before to derive soil hydraulic parameters from other more easily measured soil properties at matching scales. Here, ANNs were applied with different training and simulation scales. This concept was further extended to work within a Bayesian framework in order to provide estimates of uncertainty in such parameter estimations. Use of ancillary information such as elevation and vegetation data, in addition to the soil physical properties, were also tested. These multiscale pedotransfer function methods were successfully tested with numerical and field studies at different locations and scales. Most upscaling efforts thus far ignore the effect of the topography on the upscaled soil hydraulic parameter values. While this flat-terrain assumption is acceptable at coarse scales of a few hundred meters, at kilometer scales and beyond, the influence of the physical features cannot be ignored. anew upscaling scheme which accounts for variations in topography within a domain was developed to upscale soil hydraulic parameters to hill-slope (kilometer) scales. The algorithm was tested on different synthetically generated topographic configurations with good results. Extending the methodology to field conditions with greater complexities also produced good results. A comparison of different recently developed scaling schemes showed that at hill-slope scales, inclusion of topographic information produced better estimates of effective soil hydraulic parameters at that scale.

Belur Jana, Raghavendra

2010-05-01T23:59:59.000Z

397

Investment and Upgrade in Distributed Generation under Uncertainty  

NLE Websites -- All DOE Office Websites (Extended Search)

Investment and Upgrade in Distributed Generation under Uncertainty Investment and Upgrade in Distributed Generation under Uncertainty Speaker(s): Afzal Siddiqui Karl Maribu Date: September 4, 2008 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Galen Barbose The ongoing deregulation of electricity industries worldwide is providing incentives for microgrids to use small-scale distributed generation (DG) and combined heat and power (CHP) applications via heat exchangers (HXs) to meet local energy loads. Although the electric-only effciency of DG is lower than that of central-station production, relatively high tariff rates and the potential for CHP applications increase the attractiveness of on-site generation. Nevertheless, a microgrid contemplating the installation of gas-fired DG has to be aware of the uncertainty in the

398

Microsoft Word - Documentation - Price Forecast Uncertainty.doc  

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

October 2009 October 2009 1 October 2009 Short-Term Energy Outlook Supplement: Energy Price Volatility and Forecast Uncertainty 1 Summary It is often noted that energy prices are quite volatile, reflecting market participants' adjustments to new information from physical energy markets and/or markets in energy- related financial derivatives. Price volatility is an indication of the level of uncertainty, or risk, in the market. This paper describes how markets price risk and how the market- clearing process for risk transfer can be used to generate "price bands" around observed futures prices for crude oil, natural gas, and other commodities. These bands provide a quantitative measure of uncertainty regarding the range in which markets expect prices to

399

Analysis of the lumped fission-product uncertainty in CRBR  

Science Conference Proceedings (OSTI)

An approximation made in most fast reactor analyses is to utilize a single lumped fission product (FP) cross-section set to represent the total effect of the approximately 800 possible fission product nuclides in a depleted reactor model. Recent investigations have analyzed several aspects of this one-lump approximation (burnup dependence, comparison with a two-lump model, etc.), but little has been done in addressing the quality, or uncertainty, in the basic cross-section data utilized in any such representation. Thus, the purpose of this study is to investigate the uncertainty in the FP reactivity effect due to the data uncertainties inherent in an ENDF/B-V composite FP representation specifically designed for application with the current CRBR heterogeneous core concept.

White, J.R.; Schenter, R.E.

1981-01-01T23:59:59.000Z

400

Modified Phenomena Identification and Ranking Table (PIRT) for Uncertainty Analysis  

SciTech Connect

This paper describes a methodology of characterizing important phenomena, which is also part of a broader research by the authors called 'Modified PIRT'. The methodology provides robust process of phenomena identification and ranking process for more precise quantification of uncertainty. It is a two-step process of identifying and ranking methodology based on thermal-hydraulics (TH) importance as well as uncertainty importance. Analytical Hierarchical Process (AHP) has been used for as a formal approach for TH identification and ranking. Formal uncertainty importance technique is used to estimate the degree of credibility of the TH model(s) used to represent the important phenomena. This part uses subjective justification by evaluating available information and data from experiments, and code predictions. The proposed methodology was demonstrated by developing a PIRT for large break loss of coolant accident LBLOCA for the LOFT integral facility with highest core power (test LB-1). (authors)

Gol-Mohamad, Mohammad P.; Modarres, Mohammad; Mosleh, Ali [University of Maryland, College Park, MD 20742 (United States)

2006-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "regulatory uncertainties vary" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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401

Uncertainty quantification and validation of combined hydrological and macroeconomic analyses.  

SciTech Connect

Changes in climate can lead to instabilities in physical and economic systems, particularly in regions with marginal resources. Global climate models indicate increasing global mean temperatures over the decades to come and uncertainty in the local to national impacts means perceived risks will drive planning decisions. Agent-based models provide one of the few ways to evaluate the potential changes in behavior in coupled social-physical systems and to quantify and compare risks. The current generation of climate impact analyses provides estimates of the economic cost of climate change for a limited set of climate scenarios that account for a small subset of the dynamics and uncertainties. To better understand the risk to national security, the next generation of risk assessment models must represent global stresses, population vulnerability to those stresses, and the uncertainty in population responses and outcomes that could have a significant impact on U.S. national security.

Hernandez, Jacquelynne; Parks, Mancel Jordan; Jennings, Barbara Joan; Kaplan, Paul Garry; Brown, Theresa Jean; Conrad, Stephen Hamilton

2010-09-01T23:59:59.000Z

402

Statistical uncertainty analysis of radon transport in nonisothermal, unsaturated soils  

Science Conference Proceedings (OSTI)

To accurately predict radon fluxes soils to the atmosphere, we must know more than the radium content of the soil. Radon flux from soil is affected not only by soil properties, but also by meteorological factors such as air pressure and temperature changes at the soil surface, as well as the infiltration of rainwater. Natural variations in meteorological factors and soil properties contribute to uncertainty in subsurface model predictions of radon flux, which, when coupled with a building transport model, will also add uncertainty to predictions of radon concentrations in homes. A statistical uncertainty analysis using our Rn3D finite-element numerical model was conducted to assess the relative importance of these meteorological factors and the soil properties affecting radon transport. 10 refs., 10 figs., 3 tabs.

Holford, D.J.; Owczarski, P.C.; Gee, G.W.; Freeman, H.D.

1990-10-01T23:59:59.000Z

403

Resource allocation using quantification of margins and uncertainty.  

SciTech Connect

There is an increasing need to assess the performance of high consequence systems using a modeling and simulation based approach. Central to this approach are the need to quantify the uncertainties present in the system and to compare the system response to an expected performance measure. At Sandia National Laboratories, this process is referred to as quantification of margins and uncertainties or QMU. Depending on the outcome of the assessment, there might be a need to increase the confidence in the predicted response of a system model; thus a need to understand where resources need to be allocated to increase this confidence. This paper examines the problem of resource allocation done within the context of QMU. An optimization based approach to solving the resource allocation is considered and sources of aleatoric and epistemic uncertainty are included in the calculations.

Mahadevan, Sankaran (Vanderbilt University, Nashville, TN); Urbina, Angel; Paez, Thomas Lee (Thomas Paez Consulting, Durango, CO)

2010-03-01T23:59:59.000Z

404

Using dual decomposition for solving problems involving data uncertainty |  

NLE Websites -- All DOE Office Websites (Extended Search)

dual decomposition for solving problems involving data uncertainty dual decomposition for solving problems involving data uncertainty August 14, 2013 Tweet EmailPrint Many applications mdash; energy, routing, scheduling, and production planning, for example mdash; involve problems in which some or all of the data may not be known when decisions under uncertainty must be made. In such cases, approximations with stochastic mixed-integer programming models are often used. Two approaches have been suggested to address such problems: dual decomposition (DD) and branch-and-price (BP). Both approaches divide the problem into two or more subproblems, together with linear constraints that enforce agreement between solutions to the different problems through a series of iterations. Unfortunately, both approaches also suffer from lack

405

Adaptive Optimization and Systematic Probing of Infrastructure System Maintenance Policies under Model Uncertainty  

E-Print Network (OSTI)

Maintenance; Optimization; Probabilistic models; Adaptive systems; Uncertainty principles . Introduction Infrastructure management systems

Madanat, S M; Park, Sejung; Kuhn, K D

2006-01-01T23:59:59.000Z

406

Stability of stationary and time-varying nongyrotropic particle distributions  

E-Print Network (OSTI)

Abstract. The ubiquity of nongyrotropic particle populations in space plasmas warrants the study of their characteristics, in particular their stability. The unperturbed nongyrotropic distribution functions in homogeneous media without sources and sinks (closed phase space) must be rotating and time-varying (TNG), whereas consideration of open phase spaces allows for the occurrence of homogeneous and stationary distributions (SNG). The free energy brought about by the introduction of gyrophase organization in a particle population can destabilize otherwise thoroughly stable magnetoplasmas (or, a fortiori, enhance pre-existing gyrotropic instabilities) and feed intense wave growth both in TNG and SNG environments: The nongyrotropic (electron or ion) species can originate unstable coupling among the gyrotropic characteristic waves. The stability properties of these two types of homogeneous nongyrotropy shall be contrasted for parallel (with respect to the ambient magnetic ®eld) and perpendicular propagation, and their potential role as wave activity sources shall be illustrated resorting to solutions of the appropriate dispersion equations and numerical simulations. Key words. Space plasma physics (waves and instabilities) Magnetospheric physics (plasma waves and instabilities) Interplanetary physics (plasma waves and turbulence) 1

A. L. Brinca

1998-01-01T23:59:59.000Z

407

Device for producing a fluid stream of varying composition  

DOE Patents (OSTI)

A device for producing a fluid stream of varying composition comprises a chamber having an inlet at one end and outlet at the other. Between the inlet and outlet there are substantially planar pans or baffles positioned normal to the bulk flow of fluid between the inlet and the outlet. These pans are arranged in pairs. Each pan, except those of the pair most remote from the inlet, is spaced from the walls of the chamber to permit air to flow past it. The pans of each pair are also spaced from each other, in a direction parallel to their planes, leaving an empty space along the mid-plane of the chamber. This produces a circulation and mixing of fluid between the pairs of pans or baffles. A secondary stream of fluid is introduced between two pairs of baffles in the intermediate portion of the chamber, so that the composition of the fluid is different in the portion adjacent to the outlet and the portion adjacent to the inlet. In a specific embodiment, the device is an exposure chamber for experimental animals, and the pans or baffles are catch pans for excrement.

Moss, Owen R. (Kennewick, WA); Clark, Mark L. (Kennewick, WA); Rossignol, E. John (Richland, WA)

1982-01-01T23:59:59.000Z

408

Incorporating uncertainty into electric utility projections and decisions  

Science Conference Proceedings (OSTI)

This paper focuses on how electric utility companies can respond in their decision making to uncertain variables. Here we take a mean- variance type of approach. The mean'' value is an expected cost, on a discounted value basis. We assume that management has risk preferences incorporating a tradeoff between the mean and variance in the utility's net income. Decisions that utilities are faced with can be classified into two types: ex ante and ex post. The ex ante decisions need to be made prior to the uncertainty being revealed and the ex post decision can be postponed until after the uncertainty is revealed. Intuitively, we can say that the ex ante decisions provide a hedge against the uncertainties and the ex post decisions allow the negative outcomes of uncertain variables to be partially mitigated, dampening the losses. An example of an ex post decision is how the system is operated i.e., unit dispatch, and in some cases switching among types of fuels, say with different sulfur contents. For example, if gas prices go up, natural gas combined cycle units are likely to be dispatched at lower capacity factors. If SO{sub 2} emission allowance prices go up, a utility may seek to switch into a lower sulfur coal. Here we assume that regulated electric utilities do have some incentive to lower revenue requirements and hence an incentive to lower the electric rates needed for the utility to break even, thereby earning a fair return on invested capital. This paper presents the general approach first, including applications to capacity expansion and system dispatch. Then a case study is presented focusing on the 1990 Clean Air Act Amendments including SO{sub 2} emissions abatement and banking of allowances under uncertainty. It is concluded that the emission banking decisions should not be made in isolation but rather all the uncertainties in demand, fuel prices, technology performance etc., should be included in the uncertainty analysis affecting emission banking.

Hanson, D.A.

1992-01-01T23:59:59.000Z

409

Incorporating uncertainty into electric utility projections and decisions  

Science Conference Proceedings (OSTI)

This paper focuses on how electric utility companies can respond in their decision making to uncertain variables. Here we take a mean- variance type of approach. The ``mean`` value is an expected cost, on a discounted value basis. We assume that management has risk preferences incorporating a tradeoff between the mean and variance in the utility`s net income. Decisions that utilities are faced with can be classified into two types: ex ante and ex post. The ex ante decisions need to be made prior to the uncertainty being revealed and the ex post decision can be postponed until after the uncertainty is revealed. Intuitively, we can say that the ex ante decisions provide a hedge against the uncertainties and the ex post decisions allow the negative outcomes of uncertain variables to be partially mitigated, dampening the losses. An example of an ex post decision is how the system is operated i.e., unit dispatch, and in some cases switching among types of fuels, say with different sulfur contents. For example, if gas prices go up, natural gas combined cycle units are likely to be dispatched at lower capacity factors. If SO{sub 2} emission allowance prices go up, a utility may seek to switch into a lower sulfur coal. Here we assume that regulated electric utilities do have some incentive to lower revenue requirements and hence an incentive to lower the electric rates needed for the utility to break even, thereby earning a fair return on invested capital. This paper presents the general approach first, including applications to capacity expansion and system dispatch. Then a case study is presented focusing on the 1990 Clean Air Act Amendments including SO{sub 2} emissions abatement and banking of allowances under uncertainty. It is concluded that the emission banking decisions should not be made in isolation but rather all the uncertainties in demand, fuel prices, technology performance etc., should be included in the uncertainty analysis affecting emission banking.

Hanson, D.A.

1992-07-01T23:59:59.000Z

410

The Uncertainties in the 22Ne + alpha-capture Reaction Rates and the Production of the Heavy Magnesium Isotopes in Asymptotic Giant Branch Stars of Intermediate Mass  

E-Print Network (OSTI)

We present new rates for the 22Ne(alpha, n)25Mg and 22Ne(alpha,gamma)26Mg reactions, with uncertainties that have been considerably reduced compared to previous estimates, and we study how these new rates affect the production of the heavy magnesium isotopes in models of intermediate mass Asymptotic Giant Branch (AGB) stars of different initial compositions. All the models have deep third dredge-up, hot bottom burning and mass loss. Calculations have been performed using the two most commonly used estimates of the 22Ne + alpha rates as well as the new recommended rates, and with combinations of their upper and lower limits. The main result of the present study is that with the new rates, uncertainties on the production of isotopes from Mg to P coming from the 22Ne + alpha-capture rates have been considerably reduced. We have therefore removed one of the important sources of uncertainty to effect models of AGB stars. We have studied the effects of varying the mass-loss rate on nucleosynthesis and discuss other uncertainties related to the physics employed in the computation of stellar structure, such as the modeling of convection, the inclusion of a partial mixing zone and the definition of convective borders. These uncertainties are found to be much larger than those coming from 22Ne + alpha-capture rates, when using our new estimates. Much effort is needed to improve the situation for AGB models.

A. Karakas; M. Lugaro; M. Wiescher; J. Goerres; C. Ugalde

2006-01-27T23:59:59.000Z

411

Uncertainty in Electroweak Symmetry Breaking in Models With High Scale Supersymmetry Breaking and its Impact on Interpretations of Searches For Supersymmetric Particles  

E-Print Network (OSTI)

Some regions of parameter space of the minimal supersymmetric standard model (MSSM) with high scale supersymmetry breaking have extreme sensitivity of electroweak symmetry breaking (EWSB) to the top quark mass through renormalisation group evolution effects. This leads to uncertainties in the predictions which need to be taken into account in the interpretation of searches for supersymmetric particles in these regions. As an example, we provide estimates of the current uncertainties on the position in parameter space of the region which does not break electroweak symmetry in the constrained MSSM (CMSSM). The position of the boundary of EWSB can vary by up to 2 TeV in m_0 due to the uncertainties coming from the current measurement errors on the top quark mass and from higher order corrections. In this dangerous region, for fixed CMSSM parameters the neutralino lightest supersymmetric particle mass has an associated large uncertainty of order 100%. These uncertainties therefore have a profound effect on the interpretation of LHC supersymmetric particle searches in terms of the CMSSM. We also show how to ameliorate poor convergence of the iterative numerical algorithm that calculates the MSSM spectrum near the boundary of EWSB.

B. C. Allanach; M. A. Parker

2012-11-14T23:59:59.000Z

412

Estimating uncertainty in thermal-hydraulic codes using the linear variate method  

Science Conference Proceedings (OSTI)

Thermal-hydraulic codes are subject o uncertainties that must be considered in determining whether safety criteria are satisfied in nuclear reactors. Uncertainties correspond to parameters in a thermal-hydraulic model. A thermal-hydraulic model is typically a nonlinear, discontinuous function of the uncertainties. Evaluating the effect of the uncertainties is difficult. This paper describes an efficient Monte Carlo method for determining the effect of the uncertainties.

Kubic, W.L. Jr. (Los Alamos National Laboratory, NM (USA)); White, A.M. (Westinghouse Savannah River Company, Aiken, SC (USA))

1989-11-01T23:59:59.000Z

413

Guideline for the Treatment of Uncertainty in Risk-Informed Applications  

Science Conference Proceedings (OSTI)

In all scientific and engineering endeavors, there exists some level of uncertainty about the outcome. The development and application of a probabilistic risk assessment (PRA) is no exception. The uncertainty in the PRA model and its results manifests itself in several forms, including parametric, modeling, and completeness uncertainty. Various methods exist to both account for uncertainty in the model and evaluate the impact of uncertainty on the outcome of the analysis. However, these methods have gene...

2006-10-09T23:59:59.000Z

414

Coal supply and cost under technological and environmental uncertainty  

E-Print Network (OSTI)

Coal supply and cost under technological and environmental uncertainty Submitted in partial, and Rod Lawrence at Foundation Coal. I received a lot of feedback and input on this report, and would like chapters. My conversations with Kurt Walzer at Clean Air Task Force and Rory McIlmoil at Coal Valley Wind

415

Decision Based Uncertainty Propagation Using Adaptive Gaussian Mixtures  

E-Print Network (OSTI)

Propagation, Expected Loss, Improved Forecast. I. Introduction Chemical, Biological, Radiological, and Nuclear (DM) toolbox. Based on these forecasts, decisions can be made on evacuating cities, sheltering into a threat level, such as the population density in a city. Thus the ability to propagate the uncertainty

Singh, Tarunraj

416

Evaluate error sources and uncertainty in large scale measurement systems  

Science Conference Proceedings (OSTI)

Modern manufacturing technologies place increasingly higher demands on industrial measurement systems. Over the last decade there have been rapid developments in 3D measurement systems, with the primary requirement coming from industries such as automotives, ... Keywords: Best fit methods, Laser scanner, Measurement errors, Uncertainty

Qing Wang; Nick Zissler; Roger Holden

2013-02-01T23:59:59.000Z

417

Polynomial regression with derivative information in nuclear reactor uncertainty quantification*  

E-Print Network (OSTI)

1 Polynomial regression with derivative information in nuclear reactor uncertainty quantification in the outputs. The usual difficulties in modeling the work of the nuclear reactor models include the large size, applying the existing AD tools to nuclear reactor models still takes considerable development effort

Anitescu, Mihai

418

Analyzing uncertainty in TG protection graphs with TG/MC  

Science Conference Proceedings (OSTI)

We introduce TG/MC, a Monte Carlo approach for evaluating the impact of uncertainty about vulnerabilities upon forecasts of security for a real-world system modeled by a protection graph. A TG/MC model defines a vulnerability as a potential change to ... Keywords: Monte Carlo, TG, Take-Grant, protection graph, security

James R. Conrad; Jim Alves-Foss; Sauchi Stephen Lee

2010-09-01T23:59:59.000Z

419

Modeling facial expression of uncertainty in conversational animation  

Science Conference Proceedings (OSTI)

Building animated conversational agents requires developing a fine-grained analysis of the motions and meanings available to interlocutors in face-to-face conversation and implementing strategies for using these motions and meanings to communicate effectively. ... Keywords: embodied conversational agents, face-to-face conversation, facial displays, uncertainty

Matthew Stone; Insuk Oh

2006-04-01T23:59:59.000Z

420

Atmospheric Lagrangian coherent structures considering unresolved turbulence and forecast uncertainty  

E-Print Network (OSTI)

Atmospheric Lagrangian coherent structures considering unresolved turbulence and forecast, the uncertainty of the forecast FTLE fields is analyzed using ensemble forecasting. Unavoidable errors of the forecast velocity data due to the chaotic dynamics of the atmosphere is the salient reason for errors

Ross, Shane

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


421

APPLICATION OF PROBABILISTIC FORECASTS: DECISION MAKING WITH FORECAST UNCERTAINTY  

E-Print Network (OSTI)

1 APPLICATION OF PROBABILISTIC FORECASTS: DECISION MAKING WITH FORECAST UNCERTAINTY Rick Katz.isse.ucar.edu/HP_rick/dmuu.pdf #12;2 QUOTES ON USE OF PROBABILITY FORECASTS · Lao Tzu (Chinese Philosopher) "He who knows does and Value of Probability Forecasts (4) Cost-Loss Decision-Making Model (5) Simulation Example (6) Economic

Katz, Richard

422

Urgency, uncertainty, and innovation: Building jet engines in postwar America  

Science Conference Proceedings (OSTI)

Organizational history and theory have in recent years begun to integrate the non rational dimensions of action, relationships, and problem-solving with foundational under-standings of rationality.This study demonstrates that when insufficient knowledge ... Keywords: Cold war, innovation, jet propulsion, military, non-linearity, technology, uncertainty

Philip Scranton

2006-05-01T23:59:59.000Z

423

Feedback based adaptive compensation of control system sensor uncertainties  

Science Conference Proceedings (OSTI)

In this paper, the problem of adaptively compensating sensor uncertainties is addressed in a feedback based framework. In this study, sensor characteristics are modeled as parametrizable uncertain functions and a compensator is constructed to adaptively ... Keywords: Adaptive control, Adaptive systems, Sensor and data fusion, Tracking and adaptation

Shanshan Li; Gang Tao

2009-02-01T23:59:59.000Z

424

Geographic information retrieval: Modeling uncertainty of user's context  

Science Conference Proceedings (OSTI)

Geographic information retrieval (GIR) is nowadays a hot research issue that involves the management of uncertainty and imprecision and the modeling of user preferences and context. Indexing the geographic content of documents implies dealing with the ... Keywords: Bipolar criteria evaluation, Context dependent spatial query, Fuzzy aggregation operators, Geographic footprint, Geographic information retrieval, Soft constraint

Gloria Bordogna; Giorgio Ghisalberti; Giuseppe Psaila

2012-06-01T23:59:59.000Z

425

Uncertainty quantification for large-scale ocean circulation predictions.  

SciTech Connect

Uncertainty quantificatio in climate models is challenged by the sparsity of the available climate data due to the high computational cost of the model runs. Another feature that prevents classical uncertainty analyses from being easily applicable is the bifurcative behavior in the climate data with respect to certain parameters. A typical example is the Meridional Overturning Circulation in the Atlantic Ocean. The maximum overturning stream function exhibits discontinuity across a curve in the space of two uncertain parameters, namely climate sensitivity and CO{sub 2} forcing. We develop a methodology that performs uncertainty quantificatio in the presence of limited data that have discontinuous character. Our approach is two-fold. First we detect the discontinuity location with a Bayesian inference, thus obtaining a probabilistic representation of the discontinuity curve location in presence of arbitrarily distributed input parameter values. Furthermore, we developed a spectral approach that relies on Polynomial Chaos (PC) expansions on each sides of the discontinuity curve leading to an averaged-PC representation of the forward model that allows efficient uncertainty quantification and propagation. The methodology is tested on synthetic examples of discontinuous data with adjustable sharpness and structure.

Safta, Cosmin; Debusschere, Bert J.; Najm, Habib N.; Sargsyan, Khachik

2010-09-01T23:59:59.000Z

426

Quantum covariance, quantum Fisher information and the uncertainty principle  

E-Print Network (OSTI)

In this paper the relation between quantum covariances and quantum Fisher informations are studied. This study is applied to generalize a recently proved uncertainty relation based on quantum Fisher information. The proof given hereconsiderably simplifies the previously proposed proofs and leads to more general inequalities.

Paolo Gibilisco; Fumio Hiai; Denes Petz

2007-12-07T23:59:59.000Z

427

Mathematical treatment of uncertainty in the speech recognition process  

Science Conference Proceedings (OSTI)

One of the main difficulties in the speech recognition process is the treatment of the imprecisions around it. They have origin in the differences between the articulatory system of each person and the physical properties of the sound propagation. Moreover, ... Keywords: Hidden Markov model, fuzzy, interval analysis, mathematical treatment, speech recognition, uncertainty

Hesdras Oliveira Viana; Diogo Pereira Silva De Novais; Roque Mendes Prado Trindade

2010-11-01T23:59:59.000Z

428

Distributed Generation Investment by a Microgrid under Uncertainty++++ Afzal Siddiqui  

E-Print Network (OSTI)

1 Distributed Generation Investment by a Microgrid under Uncertainty++++ Afzal Siddiqui University, CA 94720-8163, USA, c_marnay@lbl.gov ABSTRACT. This paper examines a California-based microgrid-term natural gas generation cost is stochastic, we initially assume that the microgrid may purchase electricity

Guillas, Serge

429

Shahab D. Mohaghegh, WVU, ISI Quantifying Uncertainties Associated  

E-Print Network (OSTI)

blocks. Single Run = 10 Hours on 12 CPUs. Water Injection for Pressure Maintenance. #12;13 Shahab D of next generation of reservoir management tools that would address the needs of smart fields. #12 of the ideas for rate increase by the management, if we show that: We are aware of the uncertainties associated

Mohaghegh, Shahab

430

Toward an Uncertainty Budget for a Coastal Ocean Model  

Science Conference Proceedings (OSTI)

Estimates of three components of an uncertainty budget for a coastal ocean model in a wind-forced regime are made based on numerical simulations. The budget components behave differently in the shelf regime, inshore of the 200-m isobath, and the ...

Sangil Kim; R. M. Samelson; Chris Snyder

2011-03-01T23:59:59.000Z

431

Managing Wind Power Forecast Uncertainty in Electric Brandon Keith Mauch  

E-Print Network (OSTI)

i Managing Wind Power Forecast Uncertainty in Electric Grids Brandon Keith Mauch Co in Electric Grids Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy for aggregated wind farms are often modeled with Gaussian distributions. However, data from several studies have

432

NETL: IEP - Mercury Emissions Control: Regulatory Drivers  

NLE Websites -- All DOE Office Websites (Extended Search)

Regulatory Drivers Regulatory Drivers The Clean Air Act Amendments of 1990 (CAAA) brought about new awareness regarding the overall health-effects of stationary source fossil combustion emissions. Title III of the CAAA identified 189 pollutants, including mercury, as hazardous or toxic and required the Environmental Protection Agency (EPA) to evaluate their emissions by source, health effects and environmental implications, including the need to control these emissions. These pollutants are collectively referred to as air toxics or hazardous air pollutants (HAPs). The provisions in Title III specific to electric generating units (EGU) were comprehensively addressed by DOE's National Energy Technology Laboratory (NETL) and the Electric Power Research Institute (EPRI) in collaborative air toxic characterization programs conducted between 1990 and 1997. This work provided most of the data supporting the conclusions found in EPA's congressionally mandated reports regarding air toxic emissions from coal-fired utility boilers; the Mercury Study Report to Congress (1997)1 and the "Study of Hazardous Air Pollutant Emissions from Electric Utility Steam Generating Units -- Final Report to Congress" (1998).2 The first report identified coal-fired power plants as the largest source of human-generated mercury emissions in the U.S. and the second concluded that mercury from coal-fired utilities was the HAP of "greatest potential concern" to the environment and human health that merited additional research and monitoring.

433

IEP - Water-Energy Interface: Regulatory Drivers  

NLE Websites -- All DOE Office Websites (Extended Search)

Regulatory Drivers Regulatory Drivers Several legislative acts are in place that could potentially impact water quality requirements and water use for fossil energy production as well as electricity generation. These acts regulate pollutant discharge and water intake directly and indirectly. Under regulations established by the United States Environmental Protection Agency (EPA), these Acts serve to maintain and improve the Nation's water resources for uses including but not limited to agricultural, industrial, nutritional, and recreational purposes. The Clean Water Act - The Federal Water Pollution Control Act, more commonly known as the Clean Water Act, provides for the regulation of discharges to the nation's surface waters. To address pollution, the act specifies that the discharge of any pollutant by any person is unlawful except when in compliance with applicable permitting requirements. Initial emphasis was placed on "point source" pollutant discharge, but 1987 amendments authorized measures to address "non-point source" discharges, including stormwater runoff from industrial facilities. Permits are issued under the National Pollutant Discharge Elimination System (NPDES), which designates the highest level of water pollution or lowest acceptable standards for water discharges. NPDES permits are typically administered by the individual states. With EPA approval, the states may implement standards more stringent than federal water quality standards, but may not be less stringent. Certain sections of the Act are particularly applicable to water issues related to power generation. These include:

434

Developing a Regulatory Framework for Extended Storage and Transportation  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Developing a Regulatory Framework Developing a Regulatory Framework for Extended Storage and Transportation National Transportation Stakeholders Forum May 10-12, 2011 Denver, Colorado Earl Easton Office of Nuclear Material Safety and Safeguards U.S. Nuclear Regulatory Commission Outline * Current Regulatory Framework * Future Regulatory Needs * Technical Basis (with some examples) * Path Forward 2 Current NRC Regulatory Framework for Storage * Renewable Term Licenses * Aging Management Plan - Time-limited aging analyses - Design for prevention - Monitoring - how, how often, in-situ - Maintenance - what type - Corrective Actions - when 3 Dry Cask Storage * 63 licensed ISFSIs (8 more than 2010) * Expect 10 sites pursuing General License * Over 1400 loaded storage casks 0 10 20 30 40 50 60 70 80 Number of ISFSIs Year Specific Licensees

435

Edison Electric Institute (EEI) Reducing Regulatory Burden RFI, 77 Fed.  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Edison Electric Institute (EEI) Reducing Regulatory Burden RFI, 77 Edison Electric Institute (EEI) Reducing Regulatory Burden RFI, 77 Fed. Reg. 28518 (May 15, 2012) Edison Electric Institute (EEI) Reducing Regulatory Burden RFI, 77 Fed. Reg. 28518 (May 15, 2012) The Edison Electric Institute (EEI) is submitting these comments in response to the above-referenced request for information (RFI) issued by the Department of Energy (DOE). In the RFI, DOE is again asking for information on ways to streamline and to reduce the burden imposed by its regulations. Reg review - DOE RFI - EEI cmts 5-29-12.pdf More Documents & Publications Reducing Regulatory Burden RFI, 77 Fed. Reg. 28518 Edison Electric Institute (EEI) Regulatory Burden RFI, 77 Fed. Reg. 47328 EEI Comments in response to DOE regulatory review RFI, 76 Fed. Reg. 75798

436

Category:Geothermal Regulatory Roadmap Sections | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Category Edit History Facebook icon Twitter icon » Category:Geothermal Regulatory Roadmap Sections Jump to: navigation, search GRR-logo.png Looking for the Geothermal Regulatory Roadmap? Click here for a user-friendly list of Geothermal Regulatory Roadmap pages. Add.png Add a Section Pages in this category are created or edited using the RRSection form. Subcategories This category has the following 2 subcategories, out of 2 total. R [×] Regulatory Roadmap Overview Sections‎ 22 pages [×] Regulatory Roadmap State Sections‎ 362 pages Pages in category "Geothermal Regulatory Roadmap Sections" The following 200 pages are in this category, out of 432 total. (previous

437

Category:Regulatory Roadmap State Sections | Open Energy Information  

Open Energy Info (EERE)

Regulatory Roadmap State Sections Regulatory Roadmap State Sections Jump to: navigation, search GRR-logo.png Looking for the Geothermal Regulatory Roadmap? Click here for a user-friendly list of Geothermal Regulatory Roadmap pages. This is the Regulatory Roadmap State Sections category. Add.png Add an Section Pages in category "Regulatory Roadmap State Sections" The following 200 pages are in this category, out of 339 total. (previous 200) (next 200) G GRR/Section 1-AK-a - Land Use Considerations GRR/Section 1-CA-a - State Land Use Planning GRR/Section 1-HI-a - Land Use Considerations GRR/Section 1-ID-a - Land Use Considerations GRR/Section 1-MT-a - Land Use Considerations GRR/Section 1-NV-a - State Land Use Planning GRR/Section 1-OR-a - Land Use Considerations GRR/Section 11-AK-a - State Cultural Considerations

438

Uncertainty of calorimeter measurements at NREL's high flux solar furnace  

DOE Green Energy (OSTI)

The uncertainties of the calorimeter and concentration measurements at the High Flux Solar Furnace (HFSF) at the National Renewable Energy Laboratory (NREL) are discussed. Two calorimeter types have been used to date. One is an array of seven commercially available circular foil calorimeters (gardon or heat flux gages) for primary concentrator peak flux (up to 250 W/cm{sup 2}). The second is a cold-water calorimeter designed and built by the University of Chicago to measure the average exit power of the reflective compound parabolic secondary concentrator used at the HFSF (over 3.3 kW across a 1.6cm{sup {minus}2} exit aperture, corresponding to a flux of about 2 kW/cm{sup 2}). This paper discussed the uncertainties of the calorimeter and pyrheliometer measurements and resulting concentration calculations. The measurement uncertainty analysis is performed according to the ASME/ANSI standard PTC 19.1 (1985). Random and bias errors for each portion of the measurement are analyzed. The results show that as either the power or the flux is reduced, the uncertainties increase. Another calorimeter is being designed for a new, refractive secondary which will use a refractive material to produce a higher average flux (5 kW/cm{sup 2}) than the reflective secondary. The new calorimeter will use a time derivative of the fluid temperature as a key measurement of the average power out of the secondary. A description of this calorimeter and test procedure is also presented, along with a pre-test estimate of major sources of uncertainty. 8 refs., 4 figs., 3 tabs.

Bingham, C.E.

1991-12-01T23:59:59.000Z

439

Stochastic Programming of Vehicle to Building Interactions with Uncertainty  

NLE Websites -- All DOE Office Websites (Extended Search)

Stochastic Programming of Vehicle to Building Interactions with Uncertainty Stochastic Programming of Vehicle to Building Interactions with Uncertainty in PEVs Driving for a Medium Office Building Title Stochastic Programming of Vehicle to Building Interactions with Uncertainty in PEVs Driving for a Medium Office Building Publication Type Conference Paper LBNL Report Number LBNL-6416E Year of Publication 2013 Authors Cardoso, Gonçalo, Michael Stadler, Mohammad Bozchalui, Ratnesh Sharma, Chris Marnay, Ana Barbosa-Póvoa, and Paulo Ferrão Conference Name 39th Annual Conference of the IEEE Industrial Electronics Society Date Published 10/2013 Conference Location Vienna, Austria Abstract The large scale penetration of electric vehicles (EVs) will introduce technical challenges to the distribution grid, but also carries the potential for vehicle-to-grid services. Namely, if available in large enough numbers, EVs can be used as a distributed energy resource (DER) and their presence can influence optimal DER investment and scheduling decisions in microgrids. In this work, a novel EV fleet aggregator model is introduced in a stochastic formulation of DER-CAM, an optimization tool used to address DER investment and scheduling problems. This is used to assess the impact of EV interconnections on optimal DER solutions considering uncertainty in EV driving schedules. Optimization results indicate that EVs can have a significant impact on DER investments, particularly if considering short payback periods. Furthermore, results suggest that uncertainty in driving schedules carries little significance to total energy costs, which is corroborated by results obtained with the stochastic formulation of the problem.

440

Environmental regulatory update table: September/October 1994  

SciTech Connect

The Environmental Regulatory Update Table provides information on regulatory initiatives of interest to DOE operations and contractor staff with environmental management responsibilities. The table is updated bi-monthly with information from the Federal Register and other sources, including direct contact with regulatory agencies. Each table entry provides a chronological record of the rulemaking process for that initiative with an abstract and a projection of further action.

Houlberg, L.M.; Hawkins, G.T.; Bock, R.E.; Salk, M.S.

1994-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "regulatory uncertainties vary" from the National Library of EnergyBeta (NLEBeta).
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441

Environmental sciences division: Environmental regulatory update table July 1988  

Science Conference Proceedings (OSTI)

The Environmental Regulatory Update Table provides information on regulatory initiatives of interest to DOE operations and contractor staff with environmental management responsibilities. The table is updated each month with information from the Federal Register and other sources, including direct contact with regulatory agencies. Each table entry provides a chronological record of the rulemaking process for that initiative with an abstract and a projection of further action.

Langston, M.E.; Nikbakht, A.; Salk, M.S.

1988-08-01T23:59:59.000Z

442

Environmental Regulatory Update Table, November--December 1993  

SciTech Connect

The Environmental Regulatory Update Table provides information on regulatory of interest to DOE operations and contractor staff with environmental management responsibilities. The table is updated bi-monthly with information from the Federal Register and other sources, including direct contact with regulatory agencies. Each table entry provides a chronological record of the rulemaking process for that initiative with an abstract and a projection of further action.

Houlberg, L.M.; Hawkins, G.T.; Salk, M.S.; Danford, G.S.; Lewis, E.B.

1994-01-01T23:59:59.000Z

443

Public Utility Regulatory Policies Act of 1978 (PURPA) as Applicable...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Act of 1978 (PURPA) as Applicable to the Energy Policy Act of 2005 (EPACT 2005) - List of Covered Electric Utilities. Public Utility Regulatory Policies Act of 1978 (PURPA)...

444

Work for Nuclear Regulatory Commission, Safety Related Applications  

NLE Websites -- All DOE Office Websites (Extended Search)

Nuclear Regulatory Nuclear Regulatory Commission Capabilities Sensors and Instrumentation and Nondestructive Evaluation Overview Energy System Applications Safety-Related Applications Overview DOE Office of Nuclear Energy, Science, and Technology Nuclear Regulatory Commission National Aeronautics and Space Administration (NASA) Homeland Security Applications Biomedical Applications Millimiter Wave Group Papers Other NPNS Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Sensors and Instrumentation and Nondestructive Evaluation Safety Related Applications Bookmark and Share Nuclear Regulatory Commission International Steam Generator Tube Integrity Program Key objectives of the International Steam Generator Tube Integrity Program

445

Department of Energy and Nuclear Regulatory Commission Increase Cooperation  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Nuclear Regulatory Commission Increase Nuclear Regulatory Commission Increase Cooperation to Advance Global Nuclear Energy Partnership Department of Energy and Nuclear Regulatory Commission Increase Cooperation to Advance Global Nuclear Energy Partnership July 17, 2007 - 2:55pm Addthis WASHINGTON, DC - The U.S. Department of Energy (DOE) and Nuclear Regulatory Commission (NRC) expanded cooperation for President Bush's Global Nuclear Energy Partnership (GNEP) through a Memorandum of Understanding (MOU) that was signed on Friday by DOE's GNEP Deputy Program Manager Paul Lisowski and NRC Executive Director for Operations Luis Reyes. The MOU establishes the foundation for increased cooperation between DOE and NRC on technological research and engineering studies and marks another important milestone

446

Public Utility Regulatory Act, Alternative Energy Providers (Texas) |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Regulatory Act, Alternative Energy Providers (Texas) Regulatory Act, Alternative Energy Providers (Texas) Public Utility Regulatory Act, Alternative Energy Providers (Texas) < Back Eligibility Utility Fed. Government Commercial Investor-Owned Utility Industrial Construction Municipal/Public Utility Local Government Rural Electric Cooperative Tribal Government Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Texas Program Type Safety and Operational Guidelines Provider Public Utility Commission of Texas Chapter 35 of the Public Utility Regulatory Act specifically addresses alternative energy providers, and contains provisions designed to aid such providers in selling power in Texas's competitive utility market. The

447

DOE Ex Parte Memorandum- Center for Regulatory Effectiveness  

Energy.gov (U.S. Department of Energy (DOE))

The Center for Regulatory Effectiveness (CRE) is submitting this memorandum pursuant to the Department of Energy’s (DOE) Guidance on Ex Parte Communications.

448

Presentation to the National Association of Regulatory Utility Commissioners,  

Reports and Publications (EIA)

Presented by: Jay E. Hakes, EIA Administrator Presented to: National Association of Regulatory Utility Commissioners Staff Subcommittee on Gas San Francisco, CA July 21, 1999

Information Center

1999-07-21T23:59:59.000Z

449

Demand Response & Smart Grid - State Legislative and Regulatory...  

Open Energy Info (EERE)

Page Edit with form History Facebook icon Twitter icon Demand Response & Smart Grid - State Legislative and Regulatory Policy Actions: October 2008 to May 2010 Jump to:...

450

Business Case Slide 32: Regulatory Constraints Analysis (ANL...  

NLE Websites -- All DOE Office Websites (Extended Search)

Regulatory Constraints Analysis (ANL) - Description Description Enabling activity cross-cutting all potential uses of DU in radiologically unregulated areas Tasks Evaluate...

451

Business Case Slide 33: Regulatory Constraints Analysis (ANL...  

NLE Websites -- All DOE Office Websites (Extended Search)

Previous Slide Next Slide Table of Contents Regulatory Constraints Analysis (ANL) - Status Status Evaluation of current status completed in FY02 All manufacturing of DU products...

452

Pursuing Energy Efficiency as a Hedge Against Carbon Regulatory...  

NLE Websites -- All DOE Office Websites (Extended Search)

Pursuing Energy Efficiency as a Hedge Against Carbon Regulatory Risks Current Resource Planning Practices in the West Title Pursuing Energy Efficiency as a Hedge Against Carbon...

453

NETL: News Release - State Regulatory Framework Will Most Likely...  

NLE Websites -- All DOE Office Websites (Extended Search)

February 1, 2011 State Regulatory Framework Will Most Likely Result in Robust CO2 Pipeline System, New Study Says Analysis Funded by NETL May Help Speed Commercialization of...

454

Reducing Regulatory Burden RFI, 77 Fed. Reg. 28518 | Department...  

NLE Websites -- All DOE Office Websites (Extended Search)

Burden RFI, 77 Fed. Reg. 28518 Reducing Regulatory Burden RFI, 77 Fed. Reg. 28518 The Edison Electric Institute (EEI) is submitting these comments in response to the...

455

Re: Request for Information on Regulatory Burden of DOE Regulations...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Re: Request for Information on Regulatory Burden of DOE Regulations Comments from Edison Electric Institute on DOE's Request for Information regarding the burden of DOE...

456

NRC Research to Support Regulatory Decisions Related to ...  

Science Conference Proceedings (OSTI)

Presentation Title, NRC Research to Support Regulatory Decisions Related to Subsequent License Renewal Periods. Author(s), C. E. (Gene) Carpenter. On-

457

Regulatory and Financial Reform of Federal Research Policy: Recommenda...  

NLE Websites -- All DOE Office Websites (Extended Search)

and Financial Reform of Federal Research Policy: Recommendations to the NRC Committee on Research Universities Regulatory and Financial Reform of Federal Research Policy:...

458

Notices DEPARTMENT OF ENERGY Federal Energy Regulatory Commission  

National Nuclear Security Administration (NNSA)

Federal Register Vol. 76, No. 83 Friday, April 29, 2011 Notices DEPARTMENT OF ENERGY Federal Energy Regulatory Commission Project No. 14147-000 Storage Development...

459

Mr. John Kinneman, Chief Nuclear Materfals Branch Nuclear Regulatory...  

Office of Legacy Management (LM)

111989 Mr. John Kinneman, Chief Nuclear Materfals Branch Nuclear Regulatory Commission Region I 475 Allendale Road King of Prussia. Pennsylvania 19406 Dear Mr. Kinneman: -;' .-. 'W...

460

Public Utility Regulatory Policies Act of 1978 (PURPA) | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

2012 Section 1222 of the Energy Policy Act 2005 International Electricity Regulation Presidential Permits Export Authorizations Pending Applications NEPA Other Regulatory...

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


461

Turning Themselves In: Why Companies Disclose Regulatory Violations  

E-Print Network (OSTI)

Turning Themselves In: Why Companies Disclose RegulatoryAgency program that encourages companies to self- discloseincreasingly about Industry companies regulating themselves

Short, Jodi L.; Toffel, Michael W.

2005-01-01T23:59:59.000Z

462

NAESCO Comments on Reducing Regulatory Burden RFI Final | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

on Reducing Regulatory Burden RFI Final The National Association of Energy Service Companies (NAESCO) appreciates the opportunity to submit these comments in response to the...

463

Colorado/Transmission/Regulatory Roadmap | Open Energy Information  

Open Energy Info (EERE)

Roadmap Roadmap < Colorado‎ | Transmission Jump to: navigation, search Colorado Transmission Transmission Regulatory Roadmap Roadmap State Data Regulatory Overview General TOOLS Regulatory Roadmap Regulatory Wizard Best Practices Document Library NEPA Database Glossary TECHNOLOGIES Geothermal Solar Water Wind TOPICS Land Use Planning Land Access Exploration Well Field Power Plant Transmission Water Rights Environment The flowcharts listed below cover the major requirements for developing transmission - both interconnects and major, multi-jurisdictional lines - including, land access, siting, and relevant environmental considerations. Reading the Roadmap The flowcharts are divided into General, Federal, and State columns to allow for ease of use. To use the flowcharts, start with General Flowchart

464

Instrument uncertainty effect on calculation of absolute humidity using dewpoint, wet-bulb, and relative humidity sensors  

SciTech Connect

As part of the US Department of Energy`s Advanced Desiccant Technology Program, the National Renewable Energy Laboratory (NREL) is characterizing the state-of-the-art in desiccant dehumidifiers, the key component of desiccant cooling systems. The experimental data will provide industry and end users with independent performance evaluation and help researchers assess the energy savings potential of the technology. Accurate determination of humidity ratio is critical to this work and an understanding of the capabilities of the available instrumentation is central to its proper application. This paper compares the minimum theoretical random error in humidity ratio calculation for three common measurement methods to give a sense of the relative maximum accuracy possible for each method assuming systematic errors can be made negligible. A series of experiments conducted also illustrate the capabilities of relative humidity sensors as compared to dewpoint sensors in measuring the grain depression of desiccant dehumidifiers. These tests support the results of the uncertainty analysis. At generally available instrument accuracies, uncertainty in calculated humidity ratio for dewpoint sensors is determined to be constant at approximately 2%. Wet-bulb sensors range between 2% and 6% above 10 g/kg (4%--15% below), and relative humidity sensors vary between 4% above 90% rh and 15% at 20% rh. Below 20% rh, uncertainty for rh sensors increases dramatically. Highest currently attainable accuracies bring dewpoint instruments down to 1% uncertainty, wet bulb to a range of 1%--3% above 10 g/kg (1.5%--8% below), and rh sensors between 1% and 5%.

Slayzak, S.J.; Ryan, J.P.

1998-04-01T23:59:59.000Z

465

Uncertainty analysis routine for the Ocean Thermal Energy Conversion (OTEC) biofouling measurement device and data reduction procedure. [HTCOEF code  

DOE Green Energy (OSTI)

Biofouling and corrosion of heat exchanger surfaces in Ocean Thermal Energy Conversion (OTEC) systems may be controlling factors in the potential success of the OTEC concept. Very little is known about the nature and behavior of marine fouling films at sites potentially suitable for OTEC power plants. To facilitate the acquisition of needed data, a biofouling measurement device developed by Professor J. G. Fetkovich and his associates at Carnegie-Mellon University (CMU) has been mass produced for use by several organizations in experiments at a variety of ocean sites. The CMU device is designed to detect small changes in thermal resistance associated with the formation of marine microfouling films. An account of the work performed at the Pacific Northwest Laboratory (PNL) to develop a computerized uncertainty analysis for estimating experimental uncertainties of results obtained with the CMU biofouling measurement device and data reduction scheme is presented. The analysis program was written as a subroutine to the CMU data reduction code and provides an alternative to the CMU procedure for estimating experimental errors. The PNL code was used to analyze sample data sets taken at Keahole Point, Hawaii; St. Croix, the Virgin Islands; and at a site in the Gulf of Mexico. The uncertainties of the experimental results were found to vary considerably with the conditions under which the data were taken. For example, uncertainties of fouling factors (where fouling factor is defined as the thermal resistance of the biofouling layer) estimated from data taken on a submerged buoy at Keahole Point, Hawaii were found to be consistently within 0.00006 hr-ft/sup 2/-/sup 0/F/Btu, while corresponding values for data taken on a tugboat in the Gulf of Mexico ranged up to 0.0010 hr-ft/sup 2/-/sup 0/F/Btu. Reasons for these differences are discussed.

Bird, S.P.

1978-03-01T23:59:59.000Z

466

Quantifying the Uncertainty in Estimates of World Conventional Oil Resources  

E-Print Network (OSTI)

Since Hubbert proposed the "peak oil" concept to forecast ultimate recovery of crude oil for the U.S. and the world, there have been countless debates over the timing of peak world conventional oil production rate and ultimate recovery. From review of the literature, forecasts were grouped into those that are like Hubbert's with an imminent peak, and those that do not predict an imminent peak. Both groups have bases for their positions. Viewpoints from the two groups are polarized and the rhetoric is pointed and sometimes personal. A big reason for the large divide between the two groups is the failure of both to acknowledge the significant uncertainty in their estimates. Although some authors attempt to quantify uncertainty, most use deterministic methods and present single values, with no ranges. This research proposes that those that do attempt to quantify uncertainty underestimate it significantly. The objective of this thesis is to rigorously quantify the uncertainty in estimates of ultimate world conventional oil production and time to peak rate. Two different methodologies are used. The first is a regression technique based on historical production data using Hubbert's model and the other methodology uses mathematical models. However, I conduct the analysis probabilistically, considering errors in both the data and the model, which results in likelihood probability distributions for world conventional oil production and time to peak rate. In the second method, I use a multiple-experts analysis to combine estimates from the multitude of papers presented in the literature, yielding an overall distribution of estimated world conventional oil production. Giving due consideration to uncertainty, Hubbert-type mathematical modeling results in large uncertainty ranges that encompass both groups of forecasts (imminent peak and no imminent peak). These ranges are consistent with those from the multiple-experts analysis. In short, the industry does not have enough information at this time to say with any reliability what the ultimate world conventional oil production will be. It could peak soon, somewhere in the distant future, or somewhere in between. It would be wise to consider all of these possible outcomes in planning and making decisions regarding capital investment and formulation of energy policy.

Tien, Chih-Ming

2009-12-01T23:59:59.000Z

467

EPA's Liquefied Natural Gas Regulatory Roadmap  

NLE Websites -- All DOE Office Websites (Extended Search)

Liquefied Natural Gas Liquefied Natural Gas Regulatory Roadmap July 2006 EPA230-B-06-001 About this Roadmap Natural gas continues to play an important role in meeting our nation's growing energy needs. In 2005, natural gas accounted for 23% of our nation's total energy consumption. 1 The Department of Energy's Energy Information Administration (EIA) projects that domestic consumption of natural gas will continue to increase and that imports of liquefied natural gas (LNG) will meet much of the increased demand. 2 LNG, created when natural gas is converted into a liquid state by cooling it to a temperature close to negative 260°F, presents an efficient way to transport natural gas via ship from foreign production areas to the United States. The cooling process reduces the

468

Geothermal Regulatory Roadmap | OpenEI Community  

Open Energy Info (EERE)

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469

Regulatory Review of Early Site Permit Applications  

Science Conference Proceedings (OSTI)

The U.S. Nuclear Regulatory Commission (NRC) has received and is reviewing three applications for early site permits (ESPs). The ESP process allows early resolution of site-related issues affecting possible construction and operation of a new nuclear power plant. The nuclear industry views a successful and predictable ESP process as an important step in assessing whether to seek authorization to construct and operate a new generation of nuclear power reactors in the United States. Because consideration of ESP applications is a first-of-a-kind activity, a number of issues have emerged prior to and during the reviews of the first three applications. Issues have included the need for design information at the ESP stage, accident analyses, quality assurance, and seismic analyses. The NRC has been working to resolve identified issues to support a Commission decision on whether to issue an ESP approximately 33-37 months after receipt of each ESP application. (authors)

Scott, Michael L. [Senior Project Manager, Office of Nuclear Reactor Regulation, U.S. Nuclear Regulatory Commission, Washington, DC 20555 (United States)

2004-07-01T23:59:59.000Z

470

EVALUATING INTERNAL STAKEHOLDER PERSPECTIVES ON RISK-INFORMED REGULATORY PRACTICES FOR THE NUCLEAR REGULATORY COMMISSION  

SciTech Connect

The U.S. Nuclear Regulatory Commission's (NRC) Office of Nuclear Reactor Regulation has begun a program to create a risk-informed environment within the reactor program. The first step of the process is to evaluate the existing environment and internal NRC stakeholder perceptions of risk-informed regulatory practices. This paper reports on the results of the first phase of this evaluation: assessing the current environment, including the level of acceptance of risk-informed approaches throughout the reactor program, the level of integration, areas of success, and areas of difficulty. The other two phases of the evaluation will identify barriers to the integration of risk into NRC activities and gather input on how to move to a risk-informed environment.

Peterson, L.K.; Wight, E.H.; Caruso, M.A.

2003-02-27T23:59:59.000Z

471

Reading the Tea Leaves: How Utilities in the West Are Managing Carbon Regulatory Risk in their Resource Plans  

Science Conference Proceedings (OSTI)

The long economic lifetime and development lead-time of many electric infrastructure investments requires that utility resource planning consider potential costs and risks over a lengthy time horizon. One long-term -- and potentially far-reaching -- risk currently facing the electricity industry is the uncertain cost of future carbon dioxide (CO2) regulations. Recognizing the importance of this issue, many utilities (sometimes spurred by state regulatory requirements) are beginning to actively assess carbon regulatory risk within their resource planning processes, and to evaluate options for mitigating that risk. However, given the relatively recent emergence of this issue and the rapidly changing political landscape, methods and assumptions used to analyze carbon regulatory risk, and the impact of this analysis on the selection of a preferred resource portfolio, vary considerably across utilities. In this study, we examine the treatment of carbon regulatory risk in utility resource planning, through a comparison of the most-recent resource plans filed by fifteen investor-owned and publicly-owned utilities in the Western U.S. Together, these utilities account for approximately 60percent of retail electricity sales in the West, and cover nine of eleven Western states. This report has two related elements. First, we compare and assess utilities' approaches to addressing key analytical issues that arise when considering the risk of future carbon regulations. Second, we summarize the composition and carbon intensity of the preferred resource portfolios selected by these fifteen utilities and compare them to potential CO2 emission benchmark levels.

Barbose, Galen; Wiser, Ryan; Phadke, Amol; Goldman, Charles

2008-02-01T23:59:59.000Z

472

Argonne CNM Highlight: Deciphering Uncertainties in the Cost of Solar  

NLE Websites -- All DOE Office Websites (Extended Search)

Deciphering Uncertainties in the Cost of Solar Energy Deciphering Uncertainties in the Cost of Solar Energy Photovoltaic electricity is a rapidly growing renewable energy source and will ultimately assume a major role in global energy production. The cost of solar-generated electricity is typically compared with electricity produced by traditional sources with a levelized cost of energy (LCOE) calculation. Generally, LCOE is treated as a definite number, and the assumptions lying beneath that result are rarely reported or even understood. We shed light on some of the key assumptions and offer a new approach to calculating LCOE for photovoltaics based on input parameter distributions feeding a Monte Carlo simulation. In this framework, the influence of assumptions and confidence intervals becomes clear.

473

The minimum-uncertainty coherent states for Landau levels  

Science Conference Proceedings (OSTI)

The Glauber minimum-uncertainty coherent states with two variables for Landau levels, based on the representation of Weyl-Heisenberg algebra by two different modes, have been studied about four decades ago. Here, we introduce new two-variable coherent states with minimum uncertainty relationship for Landau levels in three different methods: the infinite unitary representation of su(1, 1) is realized in two different methods, first, by consecutive levels with the same energy gaps and also with the same value for z-angular momentum quantum number, then, by shifting z-angular momentum mode number by two units while the energy level remaining the same. Besides, for su(2), whether by lowest Landau levels or Landau levels with lowest z-angular momentum, just one finite unitary representation is introduced. Having constructed the generalized Klauder-Perelomov coherent states, for any of the three representations, we obtain their Glauber coherency by displacement operator of Weyl-Heisenberg algebra.

Dehghani, A. [Physics Department, Payame Noor University, P. O. Box 19395-4697 Tehran (Iran, Islamic Republic of); Fakhri, H. [Department of Theoretical Physics and Astrophysics, Faculty of Physics, University of Tabriz, P. O. Box 51666-16471 Tabriz (Iran, Islamic Republic of); Mojaveri, B. [Department of Physics, Azarbaijan Shahid Madani University, P. O. Box 51745-406 Tabriz (Iran, Islamic Republic of)

2012-12-15T23:59:59.000Z

474

The Generalized Uncertainty Principle and Black Hole Remnants  

DOE Green Energy (OSTI)

In the current standard viewpoint small black holes are believed to emit black body radiation at the Hawking temperature, at least until they approach Planck size, after which their fate is open to conjecture. A cogent argument against the existence of remnants is that, since no evident quantum number prevents it, black holes should radiate completely away to photons and other ordinary stable particles and vacuum, like any unstable quantum system. Here we argue the contrary, that the generalized uncertainty principle may prevent their total evaporation in exactly the same way that the uncertainty principle prevents the hydrogen atom from total collapse: the collapse is prevented, not by symmetry, but by dynamics, as a minimum size and mass are approached.

Chen, Pisin

2001-06-01T23:59:59.000Z

475

Distributed Generation Investment by a Microgrid Under Uncertainty  

NLE Websites -- All DOE Office Websites (Extended Search)

Distributed Generation Investment by a Microgrid Under Uncertainty Distributed Generation Investment by a Microgrid Under Uncertainty Speaker(s): Afzal Siddiqui Date: July 24, 2006 - 12:00pm Location: 90-3122 This study examines a California-based microgrid's decision to invest in a distributed generation (DG) unit that operates on natural gas. While the long-term natural gas generation cost is stochastc, we initially assume that the microgrid may purchase electricity at a fixed retail rate from its utility. Using the real options approach, we find natural gas generation cost thresholds that trigger DG investment. Furthermore, the consideration of operational flexibility by the microgrid accelerates DG investment, while the option to disconnect entirely from the utility is not attractive. By allowing the electricity price to be stochastic, we next determine an

476

Conceptual and computational basis for the quantification of margins and uncertainty.  

Science Conference Proceedings (OSTI)

In 2001, the National Nuclear Security Administration of the U.S. Department of Energy in conjunction with the national security laboratories (i.e, Los Alamos National Laboratory, Lawrence Livermore National Laboratory and Sandia National Laboratories) initiated development of a process designated Quantification of Margins and Uncertainty (QMU) for the use of risk assessment methodologies in the certification of the reliability and safety of the nation's nuclear weapons stockpile. This presentation discusses and illustrates the conceptual and computational basis of QMU in analyses that use computational models to predict the behavior of complex systems. Topics considered include (1) the role of aleatory and epistemic uncertainty in QMU, (2) the representation of uncertainty with probability, (3) the probabilistic representation of uncertainty in QMU analyses involving only epistemic uncertainty, (4) the probabilistic representation of uncertainty in QMU analyses involving aleatory and epistemic uncertainty, (5) procedures for sampling-based uncertainty and sensitivity analysis, (6) the representation of uncertainty with alternatives to probability such as interval analysis, possibility theory and evidence theory, (7) the representation of uncertainty with alternatives to probability in QMU analyses involving only epistemic uncertainty, and (8) the representation of uncertainty with alternatives to probability in QMU analyses involving aleatory and epistemic uncertainty. Concepts and computational procedures are illustrated with both notional examples and examples from reactor safety and radioactive waste disposal.

Helton, Jon Craig (Arizona State University, Tempe, AZ)

2009-06-01T23:59:59.000Z

477

Sensitivity of low energy brachytherapy Monte Carlo dose calculations to uncertainties in human tissue composition  

Science Conference Proceedings (OSTI)

Purpose: The objective of this work is to assess the sensitivity of Monte Carlo (MC) dose calculations to uncertainties in human tissue composition for a range of low photon energy brachytherapy sources: {sup 125}I, {sup 103}Pd, {sup 131}Cs, and an electronic brachytherapy source (EBS). The low energy photons emitted by these sources make the dosimetry sensitive to variations in tissue atomic number due to the dominance of the photoelectric effect. This work reports dose to a small mass of water in medium D{sub w,m} as opposed to dose to a small mass of medium in medium D{sub m,m}. Methods: Mean adipose, mammary gland, and breast tissues (as uniform mixture of the aforementioned tissues) are investigated as well as compositions corresponding to one standard deviation from the mean. Prostate mean compositions from three different literature sources are also investigated. Three sets of MC simulations are performed with the GEANT4 code: (1) Dose calculations for idealized TG-43-like spherical geometries using point sources. Radial dose profiles obtained in different media are compared to assess the influence of compositional uncertainties. (2) Dose calculations for four clinical prostate LDR brachytherapy permanent seed implants using {sup 125}I seeds (Model 2301, Best Medical, Springfield, VA). The effect of varying the prostate composition in the planning target volume (PTV) is investigated by comparing PTV D{sub 90} values. (3) Dose calculations for four clinical breast LDR brachytherapy permanent seed implants using {sup 103}Pd seeds (Model 2335, Best Medical). The effects of varying the adipose/gland ratio in the PTV and of varying the elemental composition of adipose and gland within one standard deviation of the assumed mean composition are investigated by comparing PTV D{sub 90} values. For (2) and (3), the influence of using the mass density from CT scans instead of unit mass density is also assessed. Results: Results from simulation (1) show that variations in the mean compositions of tissues affect low energy brachytherapy dosimetry. Dose differences between mean and one standard deviation of the mean composition increasing with distance from the source are observed. It is established that the {sup 125}I and {sup 131}Cs sources are the least sensitive to variations in elemental compositions while {sup 103}Pd is most sensitive. The EBS falls in between and exhibits complex behavior due to significant spectral hardening. Results from simulation (2) show that two prostate compositions are dosimetrically equivalent to water while the third shows D{sub 90} differences of up to 4%. Results from simulation (3) show that breast is more sensitive than prostate with dose variations of up to 30% from water for 70% adipose/30% gland breast. The variability of the breast composition adds a {+-}10% dose variation. Conclusions: Low energy brachytherapy dose distributions in tissue differ from water and are influenced by density, mean tissue composition, and patient-to-patient composition variations. The results support the use of a dose calculation algorithm accounting for heterogeneities such as MC. Since this work shows that variations in mean tissue compositions affect MC dosimetry and result in increased dose uncertainties, the authors conclude that imaging tools providing more accurate estimates of elemental compositions such as dual energy CT would be beneficial.

Landry, Guillaume; Reniers, Brigitte; Murrer, Lars; Lutgens, Ludy; Bloemen-Van Gurp, Esther; Pignol, Jean-Philippe; Keller, Brian; Beaulieu, Luc; Verhaegen, Frank [Department of Radiation Oncology (MAASTRO), GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht 6201 BN (Netherlands); Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario M4N 3M5 (Canada); Departement de Radio-Oncologie et Centre de Recherche en Cancerologie, de l'Universite Laval, CHUQ, Pavillon L'Hotel-Dieu de Quebec, Quebec G1R 2J6 (Canada) and Departement de Physique, de Genie Physique et d'Optique, Universite Laval, Quebec G1K 7P4 (Canada); Department of Radiation Oncology (MAASTRO), GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht 6201 BN (Netherlands) and Medical Physics Unit, McGill University, Montreal General Hospital, Montreal, Quebec H3G 1A4 (Canada)

2010-10-15T23:59:59.000Z

478

Theory Uncertainty in Extracting the Proton's Weak Charge: White Paper  

E-Print Network (OSTI)

We review the state-of-the-art and address open questions relative to the theory uncertainty of the $\\gamma-Z$ box contribution to the $A_{PV}$ measurement within the QWEAK experiment at Jefferson Lab. This white paper summarizes the contributions by participants and discussion sessions on this topic within the MITP Workshop on Precision Electroweak Physics held in Mainz, Germany, September 23 - October 11, 2013 \\url{http://indico.cern.ch/conferenceDisplay.py?confId=248072

Gorchtein, Mikhail; Hurth, Tobias; Spiesberger, Hubert; Kumar, Krishna; Ramsey-Musolf, Michael J; Meyer, Harvey B

2013-01-01T23:59:59.000Z

479

Theory Uncertainty in Extracting the Proton's Weak Charge: White Paper  

E-Print Network (OSTI)

We review the state-of-the-art and address open questions relative to the theory uncertainty of the $\\gamma-Z$ box contribution to the $A_{PV}$ measurement within the QWEAK experiment at Jefferson Lab. This white paper summarizes the contributions by participants and discussion sessions on this topic within the MITP Workshop on Precision Electroweak Physics held in Mainz, Germany, September 23 - October 11, 2013 \\url{http://indico.cern.ch/conferenceDisplay.py?confId=248072

Mikhail Gorchtein; Jens Erler; Tobias Hurth; Hubert Spiesberger; Krishna Kumar; Michael J. Ramsey-Musolf; Harvey B. Meyer

2013-11-18T23:59:59.000Z

480

Comment on ''Improved bounds on entropic uncertainty relations''  

SciTech Connect

We provide an analytical proof of the entropic uncertainty relations presented by J. I. de Vicente and J. Sanchez-Ruiz [Phys. Rev. A 77, 042110 (2008)] and also show that the replacement of Eq. (27) by Eq. (29) in that reference introduces solutions that do not take fully into account the constraints of the problem, which in turn lead to some mistakes in their treatment.

Bosyk, G. M.; Portesi, M.; Plastino, A.; Zozor, S. [Instituto de Fisica La Plata (IFLP, CONICET), and Departamento de Fisica, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C.C. 67, 1900 La Plata (Argentina); Laboratoire Grenoblois d'Image, Parole, Signal et Automatique (GIPSA-Lab, CNRS), 961 rue de la Houille Blanche, F-38402 Saint Martin d'Heres (France)

2011-11-15T23:59:59.000Z

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481

Born-Jordan Quantization and the Uncertainty Principle  

E-Print Network (OSTI)

The Weyl correspondence and the related Wigner formalism lie at the core of traditional quantum mechanics. We discuss here an alternative quantization scheme, whose idea goes back to Born and Jordan, and which has recently been revived in another context, namely time-frequency analysis. We show that in particular the uncertainty principle does not enjoy full symplectic covariance properties in the Born and Jordan scheme, as opposed to what happens in the Weyl quantization.

Maurice A. de Gosson

2013-03-11T23:59:59.000Z

482

Quantification Of Margins And Uncertainties: A Bayesian Approach (full Paper)  

SciTech Connect

Quantification of Margins and Uncertainties (QMU) is 'a formalism for dealing with the reliability of complex technical systems, and the confidence which can be placed in estimates of that reliability.' (Eardleyet al, 2005). In this paper, we show how QMU may be interpreted in the framework of Bayesian statistical inference, using a probabilistic network. The Bayesian approach clarifies the probabilistic underpinnings of the formalism, and shows how the formalism can be used for deciSion-making.

Wallstrom, Timothy C [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

483

A discriminative model for identifying spatial cis-regulatory modules  

Science Conference Proceedings (OSTI)

Transcriptional regulation is mediated by the coordinated binding of transcription factors to the upstream region of genes. In higher eukaryotes, the binding sites of cooperating transcription factors are organized into short sequence units, called cis-regulatory ... Keywords: cis-regulatory module, probabilistic model, transcriptional regulation

Eran Segal; Roded Sharan

2004-03-01T23:59:59.000Z

484

Errors and Uncertainties in Dose Reconstruction for Radiation Effects Research  

SciTech Connect

Dose reconstruction for studies of the health effects of ionizing radiation have been carried out for many decades. Major studies have included Japanese bomb survivors, atomic veterans, downwinders of the Nevada Test Site and Hanford, underground uranium miners, and populations of nuclear workers. For such studies to be credible, significant effort must be put into applying the best science to reconstructing unbiased absorbed doses to tissues and organs as a function of time. In many cases, more and more sophisticated dose reconstruction methods have been developed as studies progressed. For the example of the Japanese bomb survivors, the dose surrogate “distance from the hypocenter” was replaced by slant range, and then by TD65 doses, DS86 doses, and more recently DS02 doses. Over the years, it has become increasingly clear that an equal level of effort must be expended on the quantitative assessment of uncertainty in such doses, and to reducing and managing uncertainty. In this context, this paper reviews difficulties in terminology, explores the nature of Berkson and classical uncertainties in dose reconstruction through examples, and proposes a path forward for Joint Coordinating Committee for Radiation Effects Research (JCCRER) Project 2.4 that requires a reasonably small level of effort for DOSES-2008.

Strom, Daniel J.

2008-04-14T23:59:59.000Z

485

An EPGPT-based approach for uncertainty quantification  

SciTech Connect

Generalized Perturbation Theory (GPT) has been widely used by many scientific disciplines to perform sensitivity analysis and uncertainty quantification. This manuscript employs recent developments in GPT theory, collectively referred to as Exact-to-Precision Generalized Perturbation Theory (EPGPT), to enable uncertainty quantification for computationally challenging models, e.g. nonlinear models associated with many input parameters and many output responses and with general non-Gaussian parameters distributions. The core difference between EPGPT and existing GPT is in the way the problem is formulated. GPT formulates an adjoint problem that is dependent on the response of interest. It tries to capture via the adjoint solution the relationship between the response of interest and the constraints on the state variations. EPGPT recasts the problem in terms of a smaller set of what is referred to as the 'active' responses which are solely dependent on the physics model and the boundary and initial conditions rather than on the responses of interest. The objective of this work is to apply an EPGPT methodology to propagate cross-sections variations in typical reactor design calculations. The goal is to illustrate its use and the associated impact for situations where the typical Gaussian assumption for parameters uncertainties is not valid and when nonlinear behavior must be considered. To allow this demonstration, exaggerated variations will be employed to stimulate nonlinear behavior in simple prototypical neutronics models. (authors)

Wang, C.; Abdel-Khalik, H. S. [Dept. of Nuclear Engineering, North Caroline State Univ., Raleigh, NC 27695 (United States)

2012-07-01T23:59:59.000Z

486