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Note: This page contains sample records for the topic "qualitative result due" 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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1

Requirements for Computer Based-Procedures for Nuclear Power Plant Field Operators Results from a Qualitative Study  

SciTech Connect

Although computer-based procedures (CBPs) have been investigated as a way to enhance operator performance on procedural tasks in the nuclear industry for almost thirty years, they are not currently widely deployed at United States utilities. One of the barriers to the wide scale deployment of CBPs is the lack of operational experience with CBPs that could serve as a sound basis for justifying the use of CBPs for nuclear utilities. Utilities are hesitant to adopt CBPs because of concern over potential costs of implementation, and concern over regulatory approval. Regulators require a sound technical basis for the use of any procedure at the utilities; without operating experience to support the use CBPs, it is difficult to establish such a technical basis. In an effort to begin the process of developing a technical basis for CBPs, researchers at Idaho National Laboratory are partnering with industry to explore CBPs with the objective of defining requirements for CBPs and developing an industry-wide vision and path forward for the use of CBPs. This paper describes the results from a qualitative study aimed at defining requirements for CBPs to be used by field operators and maintenance technicians.

Katya Le Blanc; Johanna Oxstrand

2012-05-01T23:59:59.000Z

2

Qualitative physics in virtual environments  

Science Conference Proceedings (OSTI)

In this paper, we describe a new approach to the creation of virtual environments, which uses qualitative physics to implement object behaviour. We adopted Qualitative Process Theory as a qualitative reasoning formalism, due to its representational properties ... Keywords: intelligent virtual environments, modelling and simulation, qualitative physics

Marc Cavazza; Simon Hartley; Jean-Luc Lugrin; Mikael Le Bras

2004-01-01T23:59:59.000Z

3

An arc flash is the result of a rapid release of energy due to an arcing fault between  

E-Print Network (OSTI)

- Standard for Electrical Safety in the Workplace requires that a flash hazard analysis be conductedAn arc flash is the result of a rapid release of energy due to an arcing fault between conductors. The conductive material usually burns away from the intense heat. If conditions are right, the flow of energy can

4

Qualitative methods for assessing risk  

SciTech Connect

The Department of Energy`s (DOE) non-nuclear facilities generally require only a qualitative accident analysis to assess facility risks in accordance with DOE Order 5481.1B, Safety Analysis and Review System. Achieving a meaningful qualitative assessment of risk necessarily requires the use of suitable non-numerical assessment criteria. Typically, the methods and criteria for assigning facility-specific accident scenarios to the qualitative severity and likelihood classification system in the DOE order requires significant judgment in many applications. Systematic methods for more consistently assigning the total accident scenario frequency and associated consequences are required to substantiate and enhance future risk ranking between various activities at Sandia National Laboratories (SNL). SNL`s Risk Management and National Environmental Policy Act (NEPA) Department has developed an improved methodology for performing qualitative risk assessments in accordance wi the DOE order requirements. Products of this effort are an improved set of qualitative description that permit (1) definition of the severity for both technical and programmatic consequences that may result from a variety of accident scenarios, and (2) qualitative representation of the likelihood of occurrence. These sets of descriptions are intended to facilitate proper application of DOE criteria for assessing facility risks.

Mahn, J.A. [Sandia National Labs., Albuquerque, NM (United States); Hannaman, G.W. [Science Applications International Corp., San Diego, CA (United States); Kryska, P. [Science Applications International Corp., Albuquerque, NM (United States)

1995-04-01T23:59:59.000Z

5

QUALITATIVE INTERPRETATION OF GALAXY SPECTRA  

Science Conference Proceedings (OSTI)

We describe a simple step-by-step guide to qualitative interpretation of galaxy spectra. Rather than an alternative to existing automated tools, it is put forward as an instrument for quick-look analysis and for gaining physical insight when interpreting the outputs provided by automated tools. Though the recipe is for general application, it was developed for understanding the nature of the Automatic Spectroscopic K-means-based (ASK) template spectra. They resulted from the classification of all the galaxy spectra in the Sloan Digital Sky Survey data release 7, thus being a comprehensive representation of the galaxy spectra in the local universe. Using the recipe, we give a description of the properties of the gas and the stars that characterize the ASK classes, from those corresponding to passively evolving galaxies, to H II galaxies undergoing a galaxy-wide starburst. The qualitative analysis is found to be in excellent agreement with quantitative analyses of the same spectra. We compare the mean ages of the stellar populations with those inferred using the code STARLIGHT. We also examine the estimated gas-phase metallicity with the metallicities obtained using electron-temperature-based methods. A number of byproducts follow from the analysis. There is a tight correlation between the age of the stellar population and the metallicity of the gas, which is stronger than the correlations between galaxy mass and stellar age, and galaxy mass and gas metallicity. The galaxy spectra are known to follow a one-dimensional sequence, and we identify the luminosity-weighted mean stellar age as the affine parameter that describes the sequence. All ASK classes happen to have a significant fraction of old stars, although spectrum-wise they are outshined by the youngest populations. Old stars are metal-rich or metal-poor depending on whether they reside in passive galaxies or in star-forming galaxies.

Sanchez Almeida, J.; Morales-Luis, A. B. [Instituto de Astrofisica de Canarias, E-38205 La Laguna, Tenerife (Spain); Terlevich, R.; Terlevich, E. [Instituto Nacional de Astrofisica, Optica y Electronica, Tonantzintla, Puebla (Mexico); Cid Fernandes, R., E-mail: jos@iac.es, E-mail: abml@iac.es, E-mail: rjt@ast.cam.ac.uk, E-mail: eterlevi@inaoep.mx, E-mail: cid@astro.ufsc.br [Departamento de Fisica-CFM, Universidade Federal de Santa Catarina, P.O. Box 476, 88040-900 Florianopolis, SC (Brazil)

2012-09-10T23:59:59.000Z

6

Qualitative and Quantitative Management Tools Used by Financial Officers in Public Research Universities  

E-Print Network (OSTI)

This dissertation set out to identify effective qualitative and quantitative management tools used by financial officers (CFOs) in carrying out their management functions of planning, decision making, organizing, staffing, communicating, motivating, leading and controlling at a public research university. In addition, impediments to the use of these tools were identified which may assist in breaking down barriers to the implementation of these tools within higher education. The research endeavor also provided additional significance through the CFOs identifying benefits from the use of quantitative and qualitative management tools. Finally, the study undertook the task of identifying quantitative and qualitative management tools the important to public research university CFOs in carrying out their management functions in the future. In this study, the Delphi method was used to gain consensus from a panel of fifteen public research university CFOs who were experts on qualitative and quantitative management tools. The experts were self-identified through their response to a questionnaire on their use of the management tools and represented 12 different states. Due to the nature of the research, a computer-based Delphi method was used to facilitate a four round, electronically based Delphi study. The questionnaires were based upon a review of the literature and tested by a pilot group of higher education CFOs. Through a series of four electronic questionnaires, the Delphi panel identified twenty-three qualitative and quantitative management tools which they believe are moderately effective for use by public research university CFOs in carrying out their functions of planning, decision making, organizing, staffing, communicating, motivating, leading and controlling. Additionally, the panel of experts identified sixteen barriers/impediments to the use of qualitative and quantitative tools in carrying out the above functions. The panel also identified eighteen benefits that the tools provide to public research university CFOs in carrying out their management functions. Finally, the Delphi panel identified three qualitative and quantitative management tools that will be highly important, and twenty qualitative and quantitative management tools that the panel of experts considered to be important, for public research university CFOs in carrying out their management functions in the future. This dissertation study is significant because the results are expected to provide public research university CFOs qualitative and quantitative management tools that they may use to assist them in carrying out their management functions. The barriers/impediments and benefits noted also provide CFOs with knowledge to assess whether the tools can be used at their institutions, knowing the specific climate and culture which exists. The qualitative and quantitative management tools which were identified as being important in the future can serve as a guide to develop training programs to enhance the knowledge of public research university CFOs.

Trexler, Grant 1961-

2012-12-01T23:59:59.000Z

7

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

8

Qualitative design support for engineering and architecture  

Science Conference Proceedings (OSTI)

Conventional design support software tools cannot effectively manage the complex, heterogeneous information used in engineering and architecture (EA) tasks. Crucially, despite uncertainty being an inherent quality of EA information particularly in the ... Keywords: Engineering and architecture design support, Qualitative Spatial reasoning, Qualitative temporal reasoning

C. P. L. Schultz; R. Amor; B. Lobb; H. W. Guesgen

2009-01-01T23:59:59.000Z

9

Integrated regional assessment: qualitative and quantitative issues  

Science Conference Proceedings (OSTI)

Qualitative and quantitative issues are particularly significant in integrated regional assessment. This chapter examines the terms “qualitative” and “quantitative” separately and in relation to one another, along with a discussion of the degree of interdependence or overlap between the two. Strategies for integrating the two general approaches often produce uneasy compromises. However, integrated regional assessment provides opportunities for strong collaborations in addressing specific problems in specific places.

Malone, Elizabeth L.

2009-11-19T23:59:59.000Z

10

How to Use Qualitative Analysis to Support a DSA  

Science Conference Proceedings (OSTI)

The use of judgement-based analyses that produces qualitative results can be a very effective method to demonstrate the safety posture of a nuclear facility. Such methodologies are recognized as appropriate through the graded approach established by the 10 CFR 830, Nuclear Safety Management and DOE-STD-3009. To successfully implement judgement-based analysis requires recognition of the uncertainties and biases that may be inherent with this approach. This paper will summarize the common errors that can occur when conducting judgement-based analyses and recommend techniques to improve the reproducibility and accuracy of such qualitative analyses. This paper will examine some of the Apparent and Not-So-Apparent Weaknesses associated with expert judgement and how to minimize these weaknesses. Examples related to the development of Documented Safety Analyses will be presented.

Coutts, D.A.

2003-05-29T23:59:59.000Z

11

Diagnosis of power plant faults using qualitative models and heuristic rules  

Science Conference Proceedings (OSTI)

This paper presents results obtained in an AI research effort in the industrial field of Nuclear Power Plants (NPP): malfunction diagnosis of the Emergency Feedwater System (EFWS) of a NPP. An expert system was developed which utilizes qualitative techniques ...

Irina Obreja

1990-06-01T23:59:59.000Z

12

Solar and nuclear jobs: a qualitative assessment  

SciTech Connect

Though much research has been published on the topic of solar energy's job creation potential, employment impact analyses emphasize the number of jobs created, not qualitative characteristics of the jobs. This paper considers the types of jobs created in a 38-year solar/conservation scenario and makes a comparison with the types of jobs created in a nuclear scenario. Since many economists have stated that jobs have varying levels of social benefit, this paper examines solar and nuclear jobs in light of measurable social benefits/detriments such as accessibility to unemployed/underemployed and job stability.

Rose, B.L.

1981-01-01T23:59:59.000Z

13

Incorporating qualitative objectives in integrated resource planning: Application of analytic hierarchy process and compromise programming  

SciTech Connect

This article proposes a multiobjective methodology for the integrated resource planning (IRP) problem using a combined analytic hierarchy process (AHP)-compromise programming (CP) model. Six objectives, of which five are qualitative in nature, have been considered to select demand and supply-side resources for meeting future electricity demand. The quantitative objective (viz., cost) is employed directly in the CP model. AHP priorities are derived for the qualitative objectives (e.g., technological maturity) after eliciting expert judgments. These priorities are employed as coefficients of the decision variables in the objective functions corresponding to the qualitative objectives of the model. The two distinct advantages of this method are (1) explicit consideration of all important qualitative and quantitative aspects of demand-side management (DSM) and supply-side options, and (2) consideration of specific characteristics of various types of DSM options. An illustrative application is provided for an Indian utility (Maharashtra State Electricity System) for its integrated resource plan for the period 1990--2000. The results show that the AHP-CP model incorporating qualitative objectives selects a different portfolio of DSM and supply options, as compared with single-criterion solutions. Compromise among the conflicting objectives leads to significant cost savings as well as qualitative benefits like improved system reliability, reduced environmental impact, fewer problems related to fuel supply, and shorter project installation times.

Koundinya, S.; Chattopadhyay, D.; Ramanathan, R. [Indira Gandhi Inst. of Development Research, Bombay (India)

1995-09-01T23:59:59.000Z

14

A Qualitive Modeling Approach for Fault Detection and Diagnosis on HVAC Systems  

E-Print Network (OSTI)

This paper describes the basics and first test results of a model based approach using qualitative modeling to perform Fault Detection and Diagnostics (FDD) on HVAC and R systems. A quantized system describing the qualitative behavior of a dynamical system is established by transforming numerical inputs into qualitative values or states. Then, the qualitative model is used to determine system-states or outputs that may occur in the future. The qualitative model determines the probability that a subsequent condition might occur. The model can then be used for FDD purposes by comparing the expected states of the faultless system with the occurring states of the real process. The paper presents the first results of the model, trained with measurement data of an air handling unit (AHU) heating coil. The authors plan to extend the model to further AHU components and to test them against real data to assess their performance for FDD and their economic viability in terms of engineering efforts and costs by comparing them with a rule-based FDD system. It is then planned to implement and test the models on several large HVAC and R systems operating at two major European airports in the framework of the FP7 European project CASCADE ICT for Energy Efficient Airports.

Muller, T.; Rehault, N.; Rist, T.

2013-01-01T23:59:59.000Z

15

Loss of spent fuel pool cooling PRA: Model and results  

Science Conference Proceedings (OSTI)

This letter report documents models for quantifying the likelihood of loss of spent fuel pool cooling; models for identifying post-boiling scenarios that lead to core damage; qualitative and quantitative results generated for a selected plant that account for plant design and operational practices; a comparison of these results and those generated from earlier studies; and a review of available data on spent fuel pool accidents. The results of this study show that for a representative two-unit boiling water reactor, the annual probability of spent fuel pool boiling is 5 {times} 10{sup {minus}5} and the annual probability of flooding associated with loss of spent fuel pool cooling scenarios is 1 {times} 10{sup {minus}3}. Qualitative arguments are provided to show that the likelihood of core damage due to spent fuel pool boiling accidents is low for most US commercial nuclear power plants. It is also shown that, depending on the design characteristics of a given plant, the likelihood of either: (a) core damage due to spent fuel pool-associated flooding, or (b) spent fuel damage due to pool dryout, may not be negligible.

Siu, N.; Khericha, S.; Conroy, S.; Beck, S.; Blackman, H.

1996-09-01T23:59:59.000Z

16

A qualitative study of wake fields for very short bunches  

SciTech Connect

A qualitative treatment is given of both single and multiple cavity wakefields, with the intent of providing some physical insight into the energy and bunch length dependencies. (LEW)

Palmer, R.B.

1987-10-01T23:59:59.000Z

17

Analyze qualitatively development and climate impacts from pursuing...  

Open Energy Info (EERE)

impacts that could be qualitatively assessed include: Economic: employment, job creation, income, food production, rural electrification and stability in supply, terms of...

18

Analyze qualitatively development and climate impacts of LEDS...  

Open Energy Info (EERE)

impacts that could be qualitatively assessed include: Economic: employment, job creation, income, food production, rural electrification and stability in supply, terms of...

19

A study of interactive qualitative at online shopping behavior  

Science Conference Proceedings (OSTI)

As the information age arrives and the internet network has very popular day by day. Internet network has already become quite important activity in people's daily life. The research shows that there are more than 650 million non-repeating users shop ... Keywords: interactive qualitative analysis (IQA), interactive qualitative research, on-line shopping, transaction cost

Chien-Yuan Lai; Dong-Her Shih; Hsiu-Sen Chiang; Ching-Chiang Chen

2010-02-01T23:59:59.000Z

20

Qualitative change detection using sensor networks based on connectivity information  

Science Conference Proceedings (OSTI)

The research reported in this paper uses wireless sensor networks to provide salient information about spatially distributed dynamic fields, such as regional variations in temperature or concentration of a toxic gas. The focus is on deriving qualitative ... Keywords: Qualitative changes, Sensor network, Spatio-temporal data, Topology

Jixiang Jiang; Michael Worboys; Silvia Nittel

2011-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "qualitative result due" 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

Quantifying Precipitation Suppression Due to Air Pollution  

Science Conference Proceedings (OSTI)

Urban air pollution and industrial air pollution have been shown qualitatively to suppress rain and snow. Here, precipitation losses over topographical barriers downwind of major coastal urban areas in California and in the land of Israel that ...

Amir Givati; Daniel Rosenfeld

2004-07-01T23:59:59.000Z

22

Perception of malaria risk in a setting of reduced malaria transmission: a qualitative study in Zanzibar  

E-Print Network (OSTI)

setting of reduced malaria transmission: a qualitative studysetting of reduced malaria transmission: a qualitative studyBackground: Malaria transmission has declined dramatically

2013-01-01T23:59:59.000Z

23

E.U. environmental policies: a document - based qualitative research  

Science Conference Proceedings (OSTI)

Climate change has become a reality with many consequences in different fields. The European Union (EU) has been at the forefront of international action to combat climate change since 1990, when the UN Intergovernmental Panel on Climate Change's (IPCC) ... Keywords: EU policy, European legislation, climate change, environment, greenhouse gas emissions, qualitative research

Iuliana Pop; Madalina-Teodora Andrei; Charlotte Valentine Ene; Florin Vartolomei; Petronela-Sonia Nedea; Radita Alexe

2011-02-01T23:59:59.000Z

24

ALPHA ATTENUATION DUE TO DUST LOADING  

SciTech Connect

Previous studies had been done in order to show the attenuation of alpha particles in filter media. These studies provided an accurate correction for this attenuation, but there had not yet been a study with sufficient results to properly correct for attenuation due to dust loading on the filters. At the Savannah River Site, filter samples are corrected for attenuation due to dust loading at 20%. Depending on the facility the filter comes from and the duration of the sampling period, the proper correction factor may vary. The objective of this study was to determine self-absorption curves for each of three counting instruments. Prior work indicated significant decreases in alpha count rate (as much as 38%) due to dust loading, especially on filters from facilities where sampling takes place over long intervals. The alpha count rate decreased because of a decrease in the energy of the alpha. The study performed resulted in a set of alpha absorption curves for each of three detectors. This study also took into account the affects of the geometry differences in the different counting equipment used.

Dailey, A; Dennis Hadlock, D

2007-08-09T23:59:59.000Z

25

Development of a Shutdown Qualitative Risk Assessment Standard  

Science Conference Proceedings (OSTI)

This report documents development of a shutdown qualitative risk assessment (QLRA) standard. This standard has been developed in support of Working Group ANS-58.22 of the Standards Committee of the American Nuclear Society (ANS) in conjunction with ongoing efforts to develop a standard for low power and shutdown (LPSD) probabilistic risk assessments (PRAs). This Technical Update will provide a starting point for review and comment by the ANS Working Group and other interested parties on the proposed qual...

2007-12-20T23:59:59.000Z

26

2013 Allocation Request Submissions Due September 28  

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

3 Allocation Request Submissions Due September 28 2013 Allocation Request Submissions Due September 28 August 1, 2012 by Francesca Verdier (0 Comments) The deadline for submissions...

27

2014 NERSC allocation requests due September 22  

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

allocation requests due September 22 2014 NERSC allocation requests due September 22 August 13, 2013 by Francesca Verdier (0 Comments) NERSC's allocation submission system is...

28

Qualitative simulation and related approaches for the analysis of dynamic systems  

Science Conference Proceedings (OSTI)

Methods for qualitative simulation allow predictions on the dynamics of a system to be made in the absence of quantitative information, by inferring the range of possible qualitative behaviors compatible with the structure of the system. This article ...

Hidde De Jong

2004-06-01T23:59:59.000Z

29

ANSI/ASHRAE/IESNA Standard 90.1-2007 Final Qualitative Determination...  

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

Qualitative Determination A final qualitative analysis of all addenda to ASHRAE Standard 90.1-2004 that were included in ASHRAE Standard 90.1-2007 was conducted. All 44 addenda...

30

Qualitative modelling of a multi-step process: The case of French breadmaking  

Science Conference Proceedings (OSTI)

In this paper, we investigate a problem of qualitative modelling of a multi-step food process, French breadmaking. The French breadmaking process has been represented as a sequence of steps where each step is defined through its control variables, the ... Keywords: Expert system, French breadmaking, Mixing, Qualitative calculus, Qualitative reasoning

Amadou Ndiaye; Guy Della Valle; Philippe Roussel

2009-03-01T23:59:59.000Z

31

Discussions on qualitative assessment or risk quantification in adopting decisions concerning risk in financial auditing  

Science Conference Proceedings (OSTI)

This paper presents some insights concerning qualitative and semi-quantitative audit risk assessment methods. We consider that semi-quantitative assessment collaborated with qualitative interpretation can be a better solution in evaluation auditors' ... Keywords: IAS, audit, business decisions, financial reporting, qualitative interpretation, semi-quantitative risk assessment

Diana-Laura Radu; Sabina-Cristiana Necula

2010-12-01T23:59:59.000Z

32

Search Results  

Science Conference Proceedings (OSTI)

Search Results. CAS Number, Formula, Name, State, JANAF Table, Links. 7439-97-6, Hg, Mercury, ref, view, ... 7439-97-6, Hg, Mercury, cr,l, view, ...

33

GLODAP Results  

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

Results Evaluation of Inorganic Carbon Quality Carbon Thermodynamics Anthropogenic CO2 Radio Carbon Gridded Carbon Fields Click the map to enlarge. Indian Ocean Pacific Ocean...

34

Search Results  

Science Conference Proceedings (OSTI)

Search Results. CAS Number, Formula, Name, State, JANAF Table, Links. 7440-33-7, W, Tungsten, cr,l, view, ... 7440-33-7, W, Tungsten, cr, view, ...

35

SEARCH RESULTS  

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

Home | search results Please enter one or more search words. ADVANCED SEARCH with all the words with the exact phrase with at least one of the words without the words File Format...

36

System diagnostics using qualitative analysis and component functional classification  

DOE Patents (OSTI)

A method for detecting and identifying faulty component candidates during off-normal operations of nuclear power plants involves the qualitative analysis of macroscopic imbalances in the conservation equations of mass, energy and momentum in thermal-hydraulic control volumes associated with one or more plant components and the functional classification of components. The qualitative analysis of mass and energy is performed through the associated equations of state, while imbalances in momentum are obtained by tracking mass flow rates which are incorporated into a first knowledge base. The plant components are functionally classified, according to their type, as sources or sinks of mass, energy and momentum, depending upon which of the three balance equations is most strongly affected by a faulty component which is incorporated into a second knowledge base. Information describing the connections among the components of the system forms a third knowledge base. The method is particularly adapted for use in a diagnostic expert system to detect and identify faulty component candidates in the presence of component failures and is not limited to use in a nuclear power plant, but may be used with virtually any type of thermal-hydraulic operating system.

Reifman, Jaques (Lisle, IL); Wei, Thomas Y. C. (Downers Grove, IL)

1993-01-01T23:59:59.000Z

37

System diagnostics using qualitative analysis and component functional classification  

DOE Patents (OSTI)

A method for detecting and identifying faulty component candidates during off-normal operations of nuclear power plants involves the qualitative analysis of macroscopic imbalances in the conservation equations of mass, energy and momentum in thermal-hydraulic control volumes associated with one or more plant components and the functional classification of components. The qualitative analysis of mass and energy is performed through the associated equations of state, while imbalances in momentum are obtained by tracking mass flow rates which are incorporated into a first knowledge base. The plant components are functionally classified, according to their type, as sources or sinks of mass, energy and momentum, depending upon which of the three balance equations is most strongly affected by a faulty component which is incorporated into a second knowledge base. Information describing the connections among the components of the system forms a third knowledge base. The method is particularly adapted for use in a diagnostic expert system to detect and identify faulty component candidates in the presence of component failures and is not limited to use in a nuclear power plant, but may be used with virtually any type of thermal-hydraulic operating system. 5 figures.

Reifman, J.; Wei, T.Y.C.

1993-11-23T23:59:59.000Z

38

Qualitative constraint calculi: Heterogeneous verification of composition tables  

E-Print Network (OSTI)

In the domain of qualitative constraint reasoning, a subfield of AI which has evolved in the past 25 years, a large number of calculi for efficient reasoning about spatial and temporal entities has been developed. Reasoning techniques developed for these constraint calculi typically rely on so-called composition tables of the calculus at hand, which allow for replacing semantic reasoning by symbolic operations. Often these composition tables are developed in a quite informal, pictorial manner and hence composition tables are prone to errors. In view of possible safety critical applications of qualitative calculi, however, it is desirable to formally verify these composition tables. In general, the verification of composition tables is a tedious task, in particular in cases where the semantics of the calculus depends on higher-order constructs such as sets. In this paper we address this problem by presenting a heterogeneous proof method that allows for combining a higherorder proof assistance system (such as Isabelle) with an automatic (first order) reasoner (such as SPASS or VAMPIRE). The benefit of this method is that the number of proof obligations that is to be proven interactively with a semi-automatic reasoner can be minimized to an acceptable level.

Stefan Wölfl

2007-01-01T23:59:59.000Z

39

Modeling Cathode Cooling Due to Power Interruption  

Science Conference Proceedings (OSTI)

Presentation Title, Modeling Cathode Cooling Due to Power Interruption ... Development and Application of SAMI's Low Voltage Energy-Saving Technology.

40

Independent Mineral Processing Project Technical Due Diligence  

Science Conference Proceedings (OSTI)

Presentation Title, Independent Mineral Processing Project Technical Due Diligence ... CRIMM Energy-saving Magnetic Separation Equipment and Industrial ...

Note: This page contains sample records for the topic "qualitative result due" 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

Study finds radioactivity around Los Alamos largely due to natural...  

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

received by Los Alamos residents are natural. Less than 1 percent is due to global fallout resulting from worldwide early-stage nuclear weapons testing. Where the LANL study...

42

Qualitative Reliability Issues for Solid and Liquid Wall Fusion Designs  

SciTech Connect

This report is an initial effort to identify issues affecting reliability and availability of solid and liquid wall designs for magnetic fusion power plant designs. A qualitative approach has been used to identify the possible failure modes of major system components and their effects on the systems. A general set of design attributes known to affect the service reliability has been examined for the overview solid and liquid wall designs, and some specific features of good first wall design have been discussed and applied to these designs as well. The two generalized designs compare well in regard to these design attributes. The strengths and weaknesses of each design approach are seen in the comparison of specific features.

Cadwallader, L.C.

2001-01-31T23:59:59.000Z

43

Qualitative Reliability Issues for Solid and Liquid Wall Fusion Design  

Science Conference Proceedings (OSTI)

This report is an initial effort to identify issues affecting reliability and availability of solid and liquid wall designs for magnetic fusion power plant designs. A qualitative approach has been used to identify the possible failure modes of major system components and their effects on the systems. A general set of design attributes known to affect the service reliability has been examined for the overview solid and liquid wall designs, and some specific features of good first wall design have been discussed and applied to these designs as well. The two generalized designs compare well in regard to these design attributes. The strengths and weaknesses of each design approach are seen in the comparison of specific features.

Cadwallader, Lee Charles

2001-01-01T23:59:59.000Z

44

MODELING SUBSIDENCE DUE TO GEOTHERMAL FLUID PRODUCTION  

E-Print Network (OSTI)

compaction, computers, geothermal energy, pore-waternot MODELING SUBSIDENCE DUE T GEOTHERMAL FLUID PRODUCTION Opromise f o r developing geothermal energy i n the United

Lippmann, M.J.

2011-01-01T23:59:59.000Z

45

2013 INCITE Proposals due June 27  

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

INCITE Proposals 2013 INCITE Proposals due June 27 June 15, 2012 by Francesca Verdier (0 Comments) The Innovative and Novel Computational Impact on Theory and Experiment (INCITE)...

46

Bayesian Network Inference with Qualitative Expert Knowledge for Decision Support Systems  

Science Conference Proceedings (OSTI)

In this paper, we consider a methodology that utilizes qualitative expert knowledge for inference in a Bayesian network. The decision-making assumptions and the mathematical equation for Bayesian inference are derived based on data and knowledge obtained ... Keywords: Bayesian network, Bayesian network inference, decision-support systems, qualitative expert knowledge, probability inequality constraints Bayesian network, Bayesian network inference, decision-support systems, qualitative expert knowledge, probability inequ

Nipat Jongsawat; Wichian Premchaiswadi

2010-06-01T23:59:59.000Z

47

The infant motor profile : a standardized and qualitative assessment of motor bahaviour in infancy.  

E-Print Network (OSTI)

??This thesis presents the Infant Motor Profile (IMP), a new, video-based qualitative assessment of motor behaviour of infants aged 3 to 18 months. The IMP… (more)

Heineman, Kirsten Roselien

2010-01-01T23:59:59.000Z

48

Internet-based Family Therapy from the Perspective of the Therapist: A Qualitative Inquiry.  

E-Print Network (OSTI)

??The purpose of this qualitative, phenomenological study was to learn more about the process of Internet-based Family Therapy and to discover the advantages and disadvantages… (more)

Hall, Tracy D.

2013-01-01T23:59:59.000Z

49

Use of probabilistic inversion to model qualitative expert input when selecting a new nuclear reactor technology.  

E-Print Network (OSTI)

?? Complex investment decisions by corporate executives often require the comparison of dissimilar attributes and competing technologies. A technique to evaluate qualitative input from experts… (more)

Merritt, Charles R., Jr.

2008-01-01T23:59:59.000Z

50

A QUALITATIVE METHOD TO ESTIMATE HSI DISPLAY COMPLEXITY  

SciTech Connect

There is mounting evidence that complex computer system displays in control rooms contribute to cognitive complexity and, thus, to the probability of human error. Research shows that reaction time increases and response accuracy decreases as the number of elements in the display screen increase. However, in terms of supporting the control room operator, approaches focusing on addressing display complexity solely in terms of information density and its location and patterning, will fall short of delivering a properly designed interface. This paper argues that information complexity and semantic complexity are mandatory components when considering display complexity and that the addition of these concepts assists in understanding and resolving differences between designers and the preferences and performance of operators. This paper concludes that a number of simplified methods, when combined, can be used to estimate the impact that a particular display may have on the operator's ability to perform a function accurately and effectively. We present a mixed qualitative and quantitative approach and a method for complexity estimation.

Jacques Hugo; David Gertman

2013-04-01T23:59:59.000Z

51

MODELING SUBSIDENCE DUE TO GEOTHERMAL FLUID PRODUCTION  

E-Print Network (OSTI)

pore-water pressures , subsidence. DISCLAIMER NeiIher ( h ehere," do not MODELING SUBSIDENCE DUE T GEOTHERMAL FLUIDSecond Syhposium on Land Subsidence 1976 a t Anaheim, I n t

Lippmann, M.J.

2011-01-01T23:59:59.000Z

52

Evaluating quantitative and qualitative models: An application for nationwide water erosion assessment in Ethiopia  

Science Conference Proceedings (OSTI)

This paper tests the candidacy of one qualitative response model and two quantitative models for a nationwide water erosion hazard assessment in Ethiopia. After a descriptive comparison of model characteristics the study conducts a statistical comparison ... Keywords: Model comparison, Qualitative response models, Quantitative models

B. G. J. S. Sonneveld; M. A. Keyzer; L. Stroosnijder

2011-10-01T23:59:59.000Z

53

Quantitative and qualitative measures of decomposition: Is there a link?  

Science Conference Proceedings (OSTI)

Decomposition rates of loblolly pine coarse woody debris (CWD) were determined by mass loss and wood density changes for trees that differed in source of mortality (natural, girdle-poison, and felling). Specifically, three treatments were examined: (1) control (CON): natural mortality; (2) CD: 5-fold increase in CWD compared with the CON; and (3) CS: 12-fold increase in snags compared with the CON. The additional CWD in the CD treatment plots and the additional snags in the CS plots were achieved by felling (for the CD plots) or girdling followed by herbicide injection (for the CS plots) select trees in these plots. Consequently,mortality on the CD plots is due to natural causes and felling. Likewise, mortality on the CS plots is due to natural causes and girdle-poison. In each treatment plot, mortality due to natural causes was inventoried since 1997, whereas mortality due to girdle-poison and felling were inventoried since 2001. No significant difference was detected between the rates of decomposition for the CWD on these treatment plots, indicating that source of the tree mortality did not influence rates of decomposition once the tree fell. These experimental measures of decomposition were compared with two decay classification systems (three- and five-unit classifications) to determine linkages. Changes in wood density did not correlate to any decay classification, whereas mass loss had a weak correlation with decay class. However, the large degree of variation limits the utility of decay classification systems in estimating mass loss.

Eaton, Robert, J.; Sanchez, Felipe, G.

2009-03-01T23:59:59.000Z

54

Model of Procedure Usage – Results from a Qualitative Study to Inform Design of Computer-Based Procedures  

SciTech Connect

The nuclear industry is constantly trying to find ways to decrease the human error rate, especially the human errors associated with procedure use. As a step toward the goal of improving procedure use performance, researchers, together with the nuclear industry, have been looking at replacing the current paper-based procedures with computer-based procedure systems. The concept of computer-based procedures is not new by any means; however most research has focused on procedures used in the main control room. Procedures reviewed in these efforts are mainly emergency operating procedures and normal operating procedures. Based on lessons learned for these previous efforts we are now exploring a more unknown application for computer based procedures - field procedures, i.e. procedures used by nuclear equipment operators and maintenance technicians. The Idaho National Laboratory, the Institute for Energy Technology, and participants from the U.S. commercial nuclear industry are collaborating in an applied research effort with the objective of developing requirements and specifications for a computer-based procedure system to be used by field operators. The goal is to identify the types of human errors that can be mitigated by using computer-based procedures and how to best design the computer-based procedures to do this. The underlying philosophy in the research effort is “Stop – Start – Continue”, i.e. what features from the use of paper-based procedures should we not incorporate (Stop), what should we keep (Continue), and what new features or work processes should be added (Start). One step in identifying the Stop – Start – Continue was to conduct a baseline study where affordances related to the current usage of paper-based procedures were identified. The purpose of the study was to develop a model of paper based procedure use which will help to identify desirable features for computer based procedure prototypes. Affordances such as note taking, markups, sharing procedures between fellow coworkers, the use of multiple procedures at once, etc. were considered. The model describes which affordances associated with paper based procedures should be transferred to computer-based procedures as well as what features should not be incorporated. The model also provides a means to identify what new features not present in paper based procedures need to be added to the computer-based procedures to further enhance performance. The next step is to use the requirements and specifications to develop concepts and prototypes of computer-based procedures. User tests and other data collection efforts will be conducted to ensure that the real issues with field procedures and their usage are being addressed and solved in the best manner possible. This paper describes the baseline study, the construction of the model of procedure use, and the requirements and specifications for computer-based procedures that were developed based on the model. It also addresses how the model and the insights gained from it were used to develop concepts and prototypes for computer based procedures.

Johanna H Oxstrand; Katya L Le Blanc

2012-07-01T23:59:59.000Z

55

Is Hubble's Expansion due to Dark Energy  

E-Print Network (OSTI)

{\\it The universe is expanding} is known (through Galaxy observations) since 1929 through Hubble's discovery ($V = H D$). Recently in 1999, it is found (through Supernovae observations) that the universe is not simply expanding but is accelerating too. We, however, hardly know only $4\\%$ of the universe. The Wilkinson Microwave Anisotropy Probe (WMAP) satellite observational data suggest $73\\%$ content of the universe in the form of dark-energy, $23\\%$ in the form of non-baryonic dark-matter and the rest $4\\%$ in the form of the usual baryonic matter. The acceleration of the universe is ascribed to this dark-energy with bizarre properties (repulsive-gravity). The question is that whether Hubble's expansion is just due to the shock of big-bang & inflation or it is due to the repulsive-gravity of dark-energy? Now, it is believed to be due to dark-energy, say, by re-introducing the once-discarded cosmological-constant $\\Lambda$. In the present paper, it is shown that `the formula for acceleration due to dark-energy' is (almost) exactly of same-form as `the acceleration formula from the Hubble's law'. Hence, it is concluded that: yes, `indeed it is the dark-energy responsible for the Hubble's expansion too, in-addition to the current on-going acceleration of the universe'.

R. C. Gupta; Anirudh Pradhan

2010-10-19T23:59:59.000Z

56

Turbine Nozzles Failure Due to Bird Strike - Programmaster.org  

Science Conference Proceedings (OSTI)

Presentation Title, Turbine Nozzles Failure Due to Bird Strike ... crystal (SX) nickel-based superalloy with environmental coatings on the flow path ... was caused by clogged cooling holes and film cooling reduction, resulting in ... Analysis of Crack Development Involving a Pressure Vessel in a Synthetic Gas Production Plant.

57

EAC Meeting Cancelled Due to Weather  

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

This week's Electricity Advisory Committee (EAC) meeting has been cancelled due to a strong winter storm which is predicted to impact the Washington DC area on Wednesday. Originally scheduled to be held March 6 and March 7 in Arlington, Virginia, the EAC meeting may possibly be rescheduled for a later date. If the meeting is rescheduled, details will be posted online and will be published in a new Federal Register notice.

58

ANSI/ASHRAE/IES Standard 90.1- 2010 Final Qualitative Determination |  

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

IES Standard 90.1- 2010 Final Qualitative Determination IES Standard 90.1- 2010 Final Qualitative Determination A final qualitative analysis of all addenda to ASHRAE Standard 90.1-2007 that were included in ASHRAE Standard 90.1-2010 was conducted. All 109 addenda processed by ASHRAE in the creation of ASHRAE Standard 90.1-2010 from ASHRAE Standard 90.1-2007 were evaluated by the U.S. Department of Energy (DOE) for their impact on energy efficiency. DOE determined whether each addendum would have a positive, neutral, or negative impact on overall building efficiency. Publication Date: Wednesday, October 19, 2011 BECP_FinalQualitativeAnalysisReport901-2010Determiniation_Oct2011_v00.pdf Document Details Last Name: Halverson Initials: M Affiliation: PNNL Document Number: PNNL-20883 Focus: Code Development Building Type:

59

Comparison of Qualitative (AP-913) and Quantitative (Generation Risk Assessment) Equipment Reliability Assessment Techniques  

Science Conference Proceedings (OSTI)

In the analysis of the impact of plant structures, systems and components (SSCs) on nuclear safety and plant generation, both qualitative and quantitative techniques have been employed to classify the functional importance of SSCs and to support prioritization in business decision-making. With respect to the potential impact of SSCs on plant generation, this classification has typically been accomplished via qualitative techniques that support equipment reliability programs and the implementation of INPO...

2006-12-18T23:59:59.000Z

60

A multi-scale qualitative approach to assess the impact of urbanization on natural habitats and their connectivity  

Science Conference Proceedings (OSTI)

Habitat loss and fragmentation are often concurrent to land conversion and urbanization. Simple application of GIS-based landscape pattern indicators may be not sufficient to support meaningful biodiversity impact assessment. A review of the literature reveals that habitat definition and habitat fragmentation are frequently inadequately considered in environmental assessment, notwithstanding the increasing number of tools and approaches reported in the landscape ecology literature. This paper presents an approach for assessing impacts on habitats on a local scale, where availability of species data is often limited, developed for an alpine valley in northern Italy. The perspective of the methodology is multiple scale and species-oriented, and provides both qualitative and quantitative definitions of impact significance. A qualitative decision model is used to assess ecological values in order to support land-use decisions at the local level. Building on recent studies in the same region, the methodology integrates various approaches, such as landscape graphs, object-oriented rule-based habitat assessment and expert knowledge. The results provide insights into future habitat loss and fragmentation caused by land-use changes, and aim at supporting decision-making in planning and suggesting possible ecological compensation. - Highlights: Black-Right-Pointing-Pointer Many environmental assessments inadequately consider habitat loss and fragmentation. Black-Right-Pointing-Pointer Species-perspective for defining habitat quality and connectivity is claimed. Black-Right-Pointing-Pointer Species-based tools are difficult to be applied with limited availability of data. Black-Right-Pointing-Pointer We propose a species-oriented and multiple scale-based qualitative approach. Black-Right-Pointing-Pointer Advantages include being species-oriented and providing value-based information.

Scolozzi, Rocco, E-mail: rocco.scolozzi@fmach.it [Sustainable Agro-ecosystems and Bioresources Department, IASMA Research and Innovation Centre, Fondazione Edmund Mach, Via E. Mach 1, 38010 San Michele all& #x27; Adige, (Italy); Geneletti, Davide, E-mail: geneletti@ing.unitn.it [Department of Civil and Environmental Engineering, University of Trento, Trento (Italy)

2012-09-15T23:59:59.000Z

Note: This page contains sample records for the topic "qualitative result due" 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

Pressure Drops Due to Silica Scaling  

DOE Green Energy (OSTI)

Experience with reinjection returns in many geothermal fields has prompted a move towards injecting waste fluids at some distance from the production field. This means that often, reinjection pipelines cover very long distances. If the waste water in the pipelines is supersaturated with respect to amorphous silica, then the deposition of silica in these pipelines is almost certain. Although the deposit may be of negligible thickness, the inner surface characteristics of the pipe will be different to those of clean mild steel. During a silica scaling experiment. geothermal brine was passed through a series of pipes of different sizes and over a period of three weeks, silica scale formed on the inner surface. The pressure drop along a distance of approximately 5m was measured by a water manometer in all test pipe sections. Significant pressure drop was observed during this time and can be correlated with the increase in the friction factor of the pipe walls due to silica scaling.

Brown, K.L.; Freeston, D.H.; Dimas, Z.O.; Slatter, A.

1995-01-01T23:59:59.000Z

62

PRODIAG -- Dynamic qualitative analysis for process fault diagnosis  

Science Conference Proceedings (OSTI)

The authors present a method for handling the dynamic effects of process component malfunctions through time-independent rule-based diagnostic systems. The method`s theory is discussed and a simplified version is implemented in the process diagnostic expert system PRODIAG. Simulation results from a full-scope operator training simulator of a nuclear power plant are used to illustrate the method.

Reifman, J.; Wei, T.Y.C.

1995-06-01T23:59:59.000Z

63

Subsidence due to geothermal fluid withdrawal  

DOE Green Energy (OSTI)

Single-phase and two-phase geothermal reservoirs are currently being exploited for power production in Italy, Mexico, New Zealand, the U.S. and elsewhere. Vertical ground displacements of upto 4.5 m and horizontal ground displacements of up t o 0.5 m have been observed at Wairakei, New Zealand that are clearly attributable to the resource exploitation. Similarly, vertical displacements of about 0.13 m have been recorded at The Geysers, California. No significant ground displacements that are attributable to large-scale fluid production have been observed at Larderello, Italy and Cerro Prieto, Mexico. Observations show that subsidence due to geothermal fluid production is characterized by such features as an offset of the subsidence bowl from the main area of production, time-lag between production and subsidence and nonlinear stress-strain relationships. Several plausible conceptual models, of varying degrees of sophistication, have been proposed to explain the observed features. At present, relatively more is known about the physical mechanisms that govern subsidence than the relevant therma mechanisms. Although attempts have been made to simulate observed geothermal subsidence, the modeling efforts have been seriously limited by a lack of relevant field data needed to sufficiently characterize the complex field system.

Narasimhan, T.N.; Goyal, K.P.

1982-10-01T23:59:59.000Z

64

Chemical damage due to drilling operations  

DOE Green Energy (OSTI)

The drilling of geothermal wells can result in near wellbore damage of both the injection wells and production wells if proper precautions are not taken. Very little specific information on the chemical causes for drilling damage that can directly be applied to the drilling of a geothermal well in a given situation is available in the literature. As part of the present work, the sparse literature references related to the chemical aspects of drilling damage are reviewed. The various sources of chemically induced drilling damages that are related to drilling operations are summarized. Various means of minimizing these chemical damages during and after the drilling of a geothermal well are suggested also.

Vetter, O.J.; Kandarpa, V.

1982-07-14T23:59:59.000Z

65

Access and Use of Information by Primary Health Care Providers in Rural Uganda: A Qualitative Approach  

Science Conference Proceedings (OSTI)

This article summarises findings from a qualitative study conducted in rural Uganda, East Africa. The main aim of the study was to investigate the accessibility and use of health information in the lower echelons of Primary Health Care PHC. Women, as ... Keywords: Information Activities in Rural Africa, Information Behaviour, Information Models, Information Use, Primary Health Care, Value of Information, Women

Maria G. N. Musoke

2010-04-01T23:59:59.000Z

66

QUALITATIVE PROPERTIES OF A 3-STEPS MODEL OF ANAEROBIC DIGESTION INCLUDING HYDROLYSIS OF PARTICULATE MATTER  

E-Print Network (OSTI)

QUALITATIVE PROPERTIES OF A 3-STEPS MODEL OF ANAEROBIC DIGESTION INCLUDING HYDROLYSIS-SupAgro MISTEA, 2 p. Viala 34060 Montpellier, France, fekih@supagro.inra.fr Introduction. Anaerobic digestion, the anaerobic digestion is generally considered as a three step process: hydrolysis and liquefaction

Paris-Sud XI, Université de

67

Outline of a qualitative analysis for the human motion in case of ergometer rowing  

Science Conference Proceedings (OSTI)

Today, there are numerous methods of quantitative analysis of the human movement. Basic quality of these methods is the high degree of accuracy and reliability of the obtained data. According to systematic approach human movement is qualified as a complex ... Keywords: fuzzification, human motion, qualitative analysis, quantitative analysis, rowing

Ante Panjkota; Ivo Stan?ic; Tamara Šupuk

2009-09-01T23:59:59.000Z

68

VOL. 6, NO. 1 HVAC&R RESEARCH JANUARY 2000 Qualitative Comparison of North American and  

E-Print Network (OSTI)

.K. Cooling Load Calculation Methods Simon J. Rees, Ph.D Jeffrey D. Spitler, Ph.D., P.E. Member ASHRAE Member ASHRAE Morris G. Davies Philip Haves, Ph.D., P.E. Member ASHRAE A qualitative comparison is presented compared are the ASHRAE Heat Balance Method, the Radiant Time Series Method and the Admittance Method, used

69

Changes in dimethyl sulfide oceanic distribution due to climate change  

SciTech Connect

Dimethyl sulfide (DMS) is one of the major precursors for aerosols and cloud condensation nuclei in the marine boundary layer over much of the remote ocean. Here we report on coupled climate simulations with a state-of-the-art global ocean biogeochemical model for DMS distribution and fluxes using present-day and future atmospheric CO{sub 2} concentrations. We find changes in zonal averaged DMS flux to the atmosphere of over 150% in the Southern Ocean. This is due to concurrent sea ice changes and ocean ecosystem composition shifts caused by changes in temperature, mixing, nutrient, and light regimes. The largest changes occur in a region already sensitive to climate change, so any resultant local CLAW/Gaia feedback of DMS on clouds, and thus radiative forcing, will be particularly important. A comparison of these results to prior studies shows that increasing model complexity is associated with reduced DMS emissions at the equator and increased emissions at high latitudes.

Elliott, Scott [Los Alamos National Laboratory (LANL); Erickson III, David J [ORNL

2011-01-01T23:59:59.000Z

70

Changes in Dimethyl Sulfide Oceanic Distribution due to Climate Change  

SciTech Connect

Dimethyl sulfide (DMS) is one of the major precursors for aerosols and cloud condensation nuclei in the marine boundary layer over much of the remote ocean. Here they report on coupled climate simulations with a state-of-the-art global ocean biogeochemical model for DMS distribution and fluxes using present-day and future atmospheric CO{sub 2} concentrations. They find changes in zonal averaged DMS flux to the atmosphere of over 150% in the Southern Ocean. This is due to concurrent sea ice changes and ocean ecosystem composition shifts caused by changes in temperature, mixing, nutrient, and light regimes. The largest changes occur in a region already sensitive to climate change, so any resultant local CLAW/Gaia feedback of DMS on clouds, and thus radiative forcing, will be particularly important. A comparison of these results to prior studies shows that increasing model complexity is associted with reduced DMS emissions at the equator and increased emissions at high latitudes.

Cameron-Smith, P; Elliott, S; Maltrud, M; Erickson, D; Wingenter, O

2011-02-16T23:59:59.000Z

71

Financing U.S. Renewable Energy Projects Through Public Capital Vehicles: Qualitative and Quantitative Benefits  

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

Financing U.S. Renewable Financing U.S. Renewable Energy Projects Through Public Capital Vehicles: Qualitative and Quantitative Benefits Michael Mendelsohn and David Feldman Technical Report NREL/TP-6A20-58315 April 2013 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 15013 Denver West Parkway Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Financing U.S. Renewable Energy Projects Through Public Capital Vehicles: Qualitative and Quantitative Benefits Michael Mendelsohn and David Feldman Prepared under Task No. SM13.1030

72

Mixed Quantitative/Qualitative Modeling and Simulation of the Cardiovascular System  

E-Print Network (OSTI)

The cardiovascular system is composed of the hemodynamical system and the Central Nervous System (CNS) control. Whereas the structure and functioning of the hemodynamical system are well known and a number of quantitative models have already been developed that capture the behavior of the hemodynamical system fairly accurately, the CNS control is, at present, still not completely understood and no good deductive models exist that are able to describe the CNS control from physical and physiological principles. The use of qualitative methodologies may offer an interesting alternative to quantitative modeling approaches for inductively capturing the behavior of the CNS control. In this paper, a qualitative model of the CNS control of the cardiovascular system is developed by means of the Fuzzy Inductive Reasoning (FIR) methodology. Fuzzy inductive reasoning is a fairly new modeling technique that is based on the General System Problem Solving (GSPS) methodology developed by G. Klir. Prev...

Angela Nebot; François E. Cellier

1997-01-01T23:59:59.000Z

73

Qualitative analysis of a scalar-tensor theory with exponential potential  

E-Print Network (OSTI)

A qualitative analysis of a scalar-tensor cosmological model, with an exponential potential for the scalar field, is performed. The phase diagram for the flat case is constructed. It is shown that solutions with an initial and final inflationary behaviour appear. The conditions for which the scenario favored by supernova type Ia observations becomes an attractor in the space of the solutions are established.

A. B. Batista; J. C. Fabris; S. V. B. Goncalves; J. Tossa

2000-12-19T23:59:59.000Z

74

ANSI/ASHRAE/IESNA Standard 90.1-2007 Preliminary Qualitative Determination  

Science Conference Proceedings (OSTI)

A preliminary qualitative analysis of all addenda to ANSI/ASHRAE/IESNA Standard 90.1-2004 that were included in ANSI/ASHRAE/IESNA Standard 90.1-2007 was conducted. All 44 addenda processed by ASHRAE in the creation of Standard 90.1-2007 from Standard 90.1-2004 were evaluated by DOE for their impact on energy efficiency. DOE preliminarily determined whether that addenda would have a positive, neutral, or negative impact on overall building efficiency.

Halverson, Mark A.; Liu, Bing; Richman, Eric E.; Winiarski, David W.

2010-05-25T23:59:59.000Z

75

Qualitative risk assessment of subsurface barriers in applications supporting retrieval of SST waste  

Science Conference Proceedings (OSTI)

This report provides a brief, qualitative assessment of risks associated with the potential use of impermeable surface barriers installed around and beneath Hanford Site single-shell tanks (SSTs) to support the retrieval of wastes from those tanks. These risks are compared to qualitative assessment of costs and risks associated with a case in which barriers are not used. A quantitative assessment of costs and risks associated with these two cases will be prepared and documented in a companion report. The companion report will compare quantitatively the costs and risks of several retrieval options with varying parameters, such as effectiveness of retrieval, effectiveness of subsurface barriers, and the use of surface barriers. For ease of comparison of qualitative risks, a case in which impermeable subsurface barriers are used in conjunction with another technology to remove tank waste is referred, to in this report as the Barrier Case. A case in which waste removal technologies are used without employing a subsurface barrier is referred to as the No Barrier Case. The technologies associated with each case are described in the following sections.

Treat, R.L. [ENSERCH Environmental Corp. (United States)

1994-04-01T23:59:59.000Z

76

Residual Circulations Due to Bottom Roughness Variability under Tidal Flows  

Science Conference Proceedings (OSTI)

Tidal flows over irregular bathymetry are known to produce residual circulation flows due to nonlinear interaction with gradients of depth. Using the depth-averaged vorticity equations, the generation of residual vorticity and residual flows due ...

Thomas F. Gross; Francisco E. Werner

1994-07-01T23:59:59.000Z

77

Characterization of unsteady loading due to impeller-diffuser interaction in centrifugal compressors  

E-Print Network (OSTI)

Time dependent simulations are used to characterize the unsteady impeller blade loading due to imipeller-diffuser interaction in centrifugal compressor stages. The capability of simulations are assessed by comparing results ...

Lusardi, Christopher (Christopher Dean)

2012-01-01T23:59:59.000Z

78

SUNRISE: INSTRUMENT, MISSION, DATA, AND FIRST RESULTS  

SciTech Connect

The SUNRISE balloon-borne solar observatory consists of a 1 m aperture Gregory telescope, a UV filter imager, an imaging vector polarimeter, an image stabilization system, and further infrastructure. The first science flight of SUNRISE yielded high-quality data that revealed the structure, dynamics, and evolution of solar convection, oscillations, and magnetic fields at a resolution of around 100 km in the quiet Sun. After a brief description of instruments and data, the first qualitative results are presented. In contrast to earlier observations, we clearly see granulation at 214 nm. Images in Ca II H display narrow, short-lived dark intergranular lanes between the bright edges of granules. The very small-scale, mixed-polarity internetwork fields are found to be highly dynamic. A significant increase in detectable magnetic flux is found after phase-diversity-related reconstruction of polarization maps, indicating that the polarities are mixed right down to the spatial resolution limit and probably beyond.

Solanki, S. K.; Barthol, P.; Danilovic, S.; Feller, A.; Gandorfer, A.; Hirzberger, J.; Riethmueller, T. L.; Schuessler, M. [Max-Planck-Institut fuer Sonnensystemforschung, Max-Planck-Str. 2, 37191 Katlenburg-Lindau (Germany); Bonet, J. A.; Pillet, V. MartInez [Instituto de Astrofisica de Canarias, C/Via Lactea s/n, 38200 La Laguna, Tenerife (Spain); Del Toro Iniesta, J. C. [Instituto de Astrofisica de AndalucIa (CSIC), Apdo. de Correos 3004, E-18080, Granada (Spain); Domingo, V.; Palacios, J. [Grupo de AstronomIa y Ciencias del Espacio, Universidad de Valencia, E-46980, Paterna, Valencia (Spain); Knoelker, M. [High Altitude Observatory, National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307-3000 (United States); Gonzalez, N. Bello; Berkefeld, T.; Franz, M.; Schmidt, W. [Kiepenheuer-Institut fuer Sonnenphysik, Schoeneckstr. 6, 79104 Freiburg (Germany); Title, A. M., E-mail: solanki@mps.mpg.d [Lockheed-Martin Solar and Astrophysical Lab., Palo Alto, CA 94304 (United States)

2010-11-10T23:59:59.000Z

79

Formation Damage due to CO2 Sequestration in Saline Aquifers  

E-Print Network (OSTI)

Carbon dioxide (CO2) sequestration is defined as the removal of gas that would be emitted into the atmosphere and its subsequent storage in a safe, sound place. CO2 sequestration in underground formations is currently being considered to reduce the amount of CO2 emitted into the atmosphere. However, a better understanding of the chemical and physical interactions between CO2, water, and formation rock is necessary before sequestration. These interactions can be evaluated by the change in mineral content in the water before and after injection, or from the change in well injectivity during CO2 injection. It may affect the permeability positively due to rock dissolution, or negatively due to precipitation. Several physical and chemical processes cover the CO2 injection operations; multiphase flow in porous media is represented by the flow of the brine and CO2, solute transportation is represented by CO2 dissolution in the brine forming weak carbonic acid, dissolution-deposition kinetics can be seen in the rock dissolution by the carbonic acid and the deposition of the reaction products, hydrodynamic instabilities due to displacement of less viscous brine with more viscous CO2 (viscous fingering), capillary effects and upward movement of CO2 due to gravity effect. The objective of the proposed work is to correlate the formation damage to the other variables, i.e. pressure, temperature, formation rock type, rock porosity, water composition, sulfates concentration in the water, CO2 volume injected, water volume injected, CO2 to water volumetric ratio, CO2 injection rate, and water injection rate. In order to achieve the proposed objective, lab experiments will be conducted on different rock types (carbonates, limestone and dolomite, and sandstone) under pressure and temperature that simulate the field conditions. CO2 will be used at the supercritical phase and different CO2-water-rock chemical interactions will be addressed. Quantitative analysis of the experimental results using a geochemical simulator (CMG-GEM) will also be performed. The results showed that for carbonate cores, maintaining the CO2/brine volumetric ratio above 1.0 reduced bicarbonate formation in the formation brine and helped in minimizing precipitation of calcium carbonate. Additionally, increasing cycle volume in WAG injection reduced the damage introduced to the core. Sulfate precipitation during CO2 sequestration was primarily controlled by temperature. For formation brine with high total dissolved solids (TDS), calcium sulfate precipitation occurs, even at a low sulfate concentration. For dolomite rock, temperature, injection flow rate, and injection scheme don't have a clear impact on the core permeability, the main factor that affects the change in core permeability is the initial core permeability. Sandstone cores showed significant damage; between 35% and 55% loss in core permeability was observed after CO2 injection. For shorter WAG injection the damage was higher; decreasing the brine volume injected per cycle, decreased the damage. At higher temperatures, 200 and 250 degrees F, more damage was noted than at 70 degrees F.

Mohamed, Ibrahim 1984-

2012-12-01T23:59:59.000Z

80

ASI Supplier Evaluation Results  

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

5 Vendor Evaluation Record 11_0203 1 of 4 5 Vendor Evaluation Record 11_0203 1 of 4 EOTA - Business Form Document Title: Vendor Evaluation Record Document Number: ADMF-015 Rev. 11_0203 Document Owner: Elizabeth Sousa Backup Owner: Melissa Otero Approver(s): Melissa Otero Parent Document: ADMP-002, Vendor Selection and Management Process Notify of Changes: EOTA Employees Referenced Document(s): N/A ADMF-015 Vendor Evaluation Record 11_0203 2 of 4 Revision History: Rev. Description of Change A Initial Release 08_1016 Added section for vendors that will not be used due to non-conformance of material delivered. 08_1110 Removed section for vendors that will not be used due to non-conformance of material delivered. Do Not Use section will be placed on ADMF-016, Vendor List.

Note: This page contains sample records for the topic "qualitative result due" 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

Changes in Tropical Cyclone Activity due to Global Warming: Results from a High-Resolution Coupled General Circulation Model  

Science Conference Proceedings (OSTI)

This study investigates the possible changes that greenhouse global warming might generate in the characteristics of tropical cyclones (TCs). The analysis has been performed using scenario climate simulations carried out with a fully coupled high-...

S. Gualdi; E. Scoccimarro; A. Navarra

2008-10-01T23:59:59.000Z

82

Variation of Bulk-Derived Surface Flux, Stability, and Roughness Results Due to the Use of Different Transfer Coefficient Schemes  

Science Conference Proceedings (OSTI)

Ten published bulk transfer coefficient schemes are used with more than 2600 sets of shipboard observations made in the North Atlantic at Ocean Station C over a one-year period. Using the same input data, the differences in the various ...

Theodore V. Blanc

1985-06-01T23:59:59.000Z

83

Costs of Land Subsidence Due to Groundwater Withdrawal  

E-Print Network (OSTI)

In recent years the area around Houston and Baytown, Texas, has been affected to an increasing degree by land subsidence. Sinking of the land surface has reached critical proportions in many areas, and subsidence of as much as eight feet has occurred. The severity of this phenomenon has been aggravated by the proximity of much of the affected area to bay waters, and tidal flooding has resulted in significant damages and property loss. Subsidence has been linked by engineers to the decline of subsurface water levels due to heavy ground water withdrawals in the area. An alternative source for water demands has been introduced, although price differentials have slowed its acceptance. Major objectives of this study included estimation of historical costs attributable to subsidence, projecting estimated costs, and examining the economics of the two alternatives for water supply. A study area of 300 square miles was identified and sampling of residences, businesses, and public officials was carried out. The cost data resulting from those samples formed the basis for economic analysis. Historical costs and property losses that were attributable to subsidence were estimated to be $60.7 million and $48.9 million, respectively, or $109.6 million total. Of the $109.6 million, $53.2 million were incurred in 1973, principally due to a six foot tide. Probability of the occurrence of a six foot tide in any one year is 20 percent. Given five additional feet of subsidence in the study area the occurrence of a six foot tide was projected to cause an estimated $63,5 million in costs and losses, $10.3 million more than were incurred in 1973. Estimated annual subsidence-related costs and losses of $14.6 million for the study area, based on 1969 to 1973 data, were used to evaluate total costs associated with supplying water needs from two alternative sources, A break-even analysis indicated that to minimize total water costs, pumping only that quantity of water that would result in no subsidence could be economically justified; i,e,, water needs or demand above that rate would need to be purchased from an alternative source. This implied that when pumping is continued to the point that subsidence occurs, the cost of pumping plus associated subsidence- related costs and losses exceed water costs from an alternative source, per unit of water.

Warren, J. P.; Jones, L. L.; Griffin, W. L.; Lacewell, R. D.

1974-07-01T23:59:59.000Z

84

Help - Search Results  

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

Search Results The search results are displayed ten documents at a time. The Next >> and << Back links at the top and bottom of the list allow you to navigate through the results...

85

Qualitative evaluation of the accuracy of maps for release of hazardous materials.  

Science Conference Proceedings (OSTI)

The LinguisticBelief%C2%A9 software tool developed by Sandia National Laboratories was applied to provide a qualitative evaluation of the accuracy of various maps that provide information on releases of hazardous material, especially radionuclides. The methodology, %E2%80%9CUncertainty for Qualitative Assessments,%E2%80%9D includes uncertainty in the evaluation. The software tool uses the mathematics of fuzzy sets, approximate reasoning, and the belief/ plausibility measure of uncertainty. SNL worked cooperatively with the Remote Sensing Laboratory (RSL) and the National Atmospheric Release Advisory Center (NARAC) at Lawrence Livermore National Laboratory (LLNL) to develop models for three types of maps for use in this study. SNL and RSL developed the maps for %E2%80%9CAccuracy Plot for Area%E2%80%9D and %E2%80%9CAerial Monitoring System (AMS) Product Confidence%E2%80%9D. SNL and LLNL developed the %E2%80%9CLLNL Model%E2%80%9D. For each of the three maps, experts from RSL and LLNL created a model in the LinguisticBelief software. This report documents the three models and provides evaluations of maps associated with the models, using example data. Future applications will involve applying the models to actual graphs to provide a qualitative evaluation of the accuracy of the maps, including uncertainty, for use by decision makers. A %E2%80%9CQuality Thermometer%E2%80%9D technique was developed to rank-order the quality of a set of maps of a given type. A technique for pooling expert option from different experts was provided using the PoolEvidence%C2%A9 software.

Darby, John L.; Marianno, Craig [National Security Technologies, Las Vegas, NV] National Security Technologies, Las Vegas, NV

2008-08-01T23:59:59.000Z

86

ANI Testbed: Published Results  

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

Testbed Results R&D Overview 100G Testbed Testbed Description Testbed Results Current Testbed Research Proposal Process Terms and Conditions Virtual Circuits (OSCARS) Performance...

87

Hydrodynamic Interactions of Two Micro-bubbles Due to an ...  

Science Conference Proceedings (OSTI)

Presentation Title, Hydrodynamic Interactions of Two Micro-bubbles Due to an ... A Review of Pyro, Hydro and Electro-metallurgical Processes for Recovering ...

88

Degradation of Wellbore Cement Due to CO2 Injection  

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

production. This is due to value-added opportunities such as enhanced oil recovery (EOR), enhanced gas recovery (EGR), and enhanced coal bed methane (ECBM) recovery. There...

89

Grid result checking  

Science Conference Proceedings (OSTI)

Result checking is the theory and practice of proving that the result of an execution of a program on an input is correct. Result checking has most often been envisioned in the framework of program testing or property testing, where the issue is the ... Keywords: grids, result checking, simulation

Cécile Germain-Renaud; Dephine Monnier-Ragaigne

2005-05-01T23:59:59.000Z

90

CONTAM Overview - Simulation Results  

Science Conference Proceedings (OSTI)

... Currently there are two types: boundary layer diffusion (BLS) deposition/ resuspension (DVR). Table — CONTAM Results Files. ...

91

Renewable Energy Loan Applications Due Today! | Department of Energy  

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

Renewable Energy Loan Applications Due Today! Renewable Energy Loan Applications Due Today! Renewable Energy Loan Applications Due Today! October 5, 2010 - 12:15pm Addthis Ebony Meeks Former Assistant Press Secretary, Office of Public Affairs If you haven't submitted your Part I application for Department of Energy Loan Guarantee Program's Renewables Solicitation yet, today is your last day! Round 8, Part I applications for DOE's Energy Efficiency, Renewable Energy and Advanced Transmission and Distribution Technologies Solicitation (2009) are due today by midnight EDT. Applicants can submit information through either the online application portal or by using FedConnect and Express Mail. Round 7 and Round 8 Part II applications are due December 31, 2010. The "Renewables Solicitation" invites the submission of applications

92

CMS: First Results  

Science Conference Proceedings (OSTI)

A summary of the LHC and CMS detector performance is given and the first CMS results are presented. In particular

Paolo Checchia; The CMS collaboration

2010-01-01T23:59:59.000Z

93

Review of Test Results  

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

GAC004 Revision 1 Effective June 2008 Review of Test Results Prepared by Electric Transportation Applications Prepared by: Date: Garrett...

94

Triboluminescent properties of zinc sulfide phosphors due to hypervelocity impact  

SciTech Connect

The emission of light due to crystal fracture, or triboluminescence (TL), is a phenomenon that has been known for centuries. One of the most common examples of TL is the flash created from chewing Wint-O-Green Lifesavers . From 2004 to 2006, research was completed using the two-stage light gas gun located at the NASA Marshall Space Flight Center (MSFC) in Huntsville, Alabama to measure the TL properties for zinc sulfide doped with both manganese (ZnS:Mn) and copper (ZnS:Cu). Results clearly show that hypervelocity impact-induced TL has been observed for both ZnS:Mn and ZnS:Cu. For ZnS:Mn, TL produced during 4.7 and 5.7km/s impacts was statistically more luminous than was observed from similar data collected at 3.3km/s. The TL decay time for ZnS:Mn was found to be 292 58 s, which is totally consistent with earlier measurements that did not use impact as an excitation source. Further, the emission of TL from ZnS:Mn undergoing hypervelocity impact has been demonstrated to have a significant component at the known peak emission wavelength of ZnS:Mn of 585nm. Small TL emission generated as a result of hypervelocity impact was also observed from ZnS:Cu. The most intriguing conclusion from this research is that it may be possible to discriminate impact velocity by measuring the time-integrated luminosity of TL phosphors. An ability to measure the velocity of a hypervelocity impact is a significant indicator of the potential usefulness for this concept for use as an impact sensor in future spacecraft.

Bergeron, Mr. Noah P. [Louisiana Tech University; HollermanPh.D., Dr. William A. [University of Louisiana, Lafayette; Goedeke, Shawn [ORNL; Moore, R. J. [University of Louisiana, Lafayette

2008-01-01T23:59:59.000Z

95

Risk management study for the retired Hanford Site facilities: Qualitative risk evaluation for the retired Hanford Site facilities. Volume 3  

SciTech Connect

This document provides a risk evaluation of the 100 and 200 Area retired, surplus facilities on the Hanford Site. Also included are the related data that were compiled by the risk evaluation team during investigations performed on the facilities. Results are the product of a major effort performed in fiscal year 1993 to produce qualitative information that characterizes certain risks associated with these facilities. The retired facilities investigated for this evaluation are located in the 100 and 200 Areas of the 1,450-km{sup 2} (570-mi{sup 2}) Hanford Site. The Hanford Site is a semiarid tract of land in southeastern Washington State. The nearest population center is Richland, Washington, (population 32,000) 30-km (20 mi) southeast of the 200 Area. During walkdown investigations of these facilities, data on real and potential hazards that threatened human health or safety or created potential environmental release issues were identified by the risk evaluation team. Using these findings, the team categorized the identified hazards by facility and evaluated the risk associated with each hazard. The factors contributing to each risk, and the consequence and likelihood of harm associated with each hazard also are included in this evaluation.

Coles, G.A.; Shultz, M.V.; Taylor, W.E.

1993-09-01T23:59:59.000Z

96

NZERTF, Recent Research Results  

Science Conference Proceedings (OSTI)

... A. Hunter Fanney, Chief Building Environment Division (301) 975-5864 hunter.fanney@nist.gov. *. Bookmark and Share. Recent Research Results. ...

2013-11-04T23:59:59.000Z

97

Search Results Quadrats  

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

lassoquadratss-searchresults-quadrat2006.lasso (1 of 2)61507 10:18 AM Search Results Quadrats 3183 Lederman Science Center Docent .P 3184 Lederman Science Center...

98

Critical-Current Reduction in Thin Superconducting Wires Due to Current Crowding  

SciTech Connect

We demonstrate experimentally that the critical current in superconducting NbTiN wires is dependent on their geometrical shape, due to current-crowding effects. Geometric patterns such as 90{degrees} corners and sudden expansions of wire width are shown to result in the reduction of critical currents. The results are relevant for single-photon detectors as well as parametric amplifiers.

Hortensius, H.L.; Driessen, E.F.C.; Klapwijk, T.M.; Berggren, K.K.; Clem, John

2012-05-03T23:59:59.000Z

99

Alignment of fee Crystals due to Transient Electric Fields  

Science Conference Proceedings (OSTI)

The alignment of columnar ice crystals due to the electric field surrounding a moving charged object, such as an aircraft, is modeled. The model allows the conditions of charge, velocity, ambient electric field, and size and shape of crystal to ...

D. A. Burrows; J. L. Stith

1986-06-01T23:59:59.000Z

100

Spectral Energy Dissipation due to Surface Wave Breaking  

Science Conference Proceedings (OSTI)

A semiempirical determination of the spectral dependence of the energy dissipation due to surface wave breaking is presented and then used to propose a model for the spectral dependence of the breaking strength parameter b, defined in the O. M. ...

Leonel Romero; W. Kendall Melville; Jessica M. Kleiss

2012-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "qualitative result due" 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

Protect the Electric Grid from Increasingly Severe Weather Due...  

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

Protect the Electric Grid from Increasingly Severe Weather Due to Climate Change, Says Joint White House and Department of Energy Report Print E-mail Using Technology to Bring...

102

Solar Radiation Absorption due to Water Vapor: Advanced Broadband Parameterizations  

Science Conference Proceedings (OSTI)

Accurate parameterizations for calculating solar radiation absorption in the atmospheric column due to water vapor lines and continuum are proposed for use in broadband shortwave radiative transfer codes. The error in the absorption values is ...

Tatiana A. Tarasova; Boris A. Fomin

2000-11-01T23:59:59.000Z

103

Diffraction Results from CDF  

Science Conference Proceedings (OSTI)

We present final results by the CDF II collaboration on diffractive W and Z production, report on the status of ongoing analyses on diffractive dijet production and on rapidity gaps between jets, and briefly summarize results obtained on exclusive production pointing to their relevance to calibrating theoretical models used to predict exclusive Higgs-boson production at the LHC.

Goulianos, Konstantin

2012-04-01T23:59:59.000Z

104

ANSI/ASHRAE/IESNA Standard 90.1-2010 Preliminary Qualitative Determination  

Science Conference Proceedings (OSTI)

A preliminary qualitative analysis of all addenda to American National Standards Institute (ANSI)/American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE)/Illuminating Engineering Society of North America (IESNA) Standard 90.1-2007 (Standard 90.1-2007 or 2007 edition) that were included in ANSI/ASHRAE/IESNA Standard 90.1-2010 (Standard 90.1-2010 or 2010 edition) was conducted. All 109 addenda processed by ASHRAE in the creation of Standard 90.1-2010 from Standard 90.1-2007 were evaluated by DOE for their impact on energy efficiency. DOE preliminarily determined whether that addenda would have a positive, neutral, or negative impact on overall building efficiency.

Halverson, Mark A.; Williamson, Jennifer L.; Liu, Bing; Rosenberg, Michael I.; Richman, Eric E.

2010-11-01T23:59:59.000Z

105

Qualitative Risk Assessment for an LNG Refueling Station and Review of Relevant Safety Issues  

Science Conference Proceedings (OSTI)

This report is a qualitative assessment of the public and worker risk involved with the operation of a liquefied natural gas (LNG) vehicle refueling facility. This study includes facility maintenance and operations, tank truck deliveries, and end-use vehicle fueling; it does not treat the risks of LNG vehicles on roadways. Accident initiating events are identified by using a Master Logic Diagram, a Failure Modes and Effects Analysis, and historical operating experiences. The event trees were drawn to depict possible sequences of mitigating events following the initiating events. The phenomenology of LNG and other vehicle fuels is discussed to characterize the hazard posed by LNG usage. Based on the risk modeling and analysis, recommendations are given to improve the safety of LNG refueling stations in the areas of procedures and training, station design, and the dissemination of ``best practice`` information throughout the LNG community.

Siu, N.; Herring, J.S.; Cadwallader, L.; Reece, W.; Byers, J.

1998-02-01T23:59:59.000Z

106

ANSI/ASHRAE/IES Standard 90.1-2010 Final Qualitative Determination  

SciTech Connect

A final qualitative analysis of all addenda to American National Standards Institute (ANSI)/American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE)/Illuminating Engineering Society of North America (IESNA) Standard 90.1-2007 (Standard 90.1-2007 or 2007 edition) that were included in ANSI/ASHRAE/IESNA Standard 90.1-2010 (Standard 90.1-2010 or 2010 edition) was conducted. All 109 addenda processed by ASHRAE in the creation of Standard 90.1-2010 from Standard 90.1-2007 were evaluated by DOE for their impact on energy efficiency. DOE determined whether each addendum would have a positive, neutral, or negative impact on overall building efficiency.

Halverson, Mark A.; Rosenberg, Michael I.; Williamson, Jennifer L.; Richman, Eric E.; Liu, Bing

2011-10-31T23:59:59.000Z

107

A Logical Approach to Incorporating Qualitative Spatial Reasoning into GIS (Extended Abstract)  

E-Print Network (OSTI)

) Brandon Bennett, Anthony G. Cohn and Amar Isli School of Computer Studies University of Leeds, Leeds LS2 9JT, England fbrandon,agc,islig@scs.leeds.ac.uk The paper explores the application to GIS of formal logical representations and reasoning algorithms for manipulating qualitative spatial information. We consider a number of different formal representations from the point of view of expressive power, `naturalness' and computational tractability. We find that, whilst there are tradeoffs between these properties, it it is possible to compute effectively with a quite expressive set of spatial relations. Specifically by using an encoding into intuitionistic propositional logic (Bennett 1994) it is possible to construct a decision procedure for a large vocabulary of topological relations, which runs in polynomial time (Nebel 1995). A considerably more expressive and arguably more natural representation is provided by the 1st-order Region Connection Calculus (RCC) (Randell, Cui and Cohn ...

Brandon Bennett; On Bennett; Anthony G. Cohn; Amar Isli

1997-01-01T23:59:59.000Z

108

ANSI/ASHRAE/IESNA Standard 90.1-2007 Final Qualitative Determination  

Science Conference Proceedings (OSTI)

A final qualitative analysis of all addenda to American National Standards Institute (ANSI)/American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE)/Illuminating Engineering Society of North America (IESNA) Standard 90.1-2004 that were included in ANSI/ASHRAE/IESNA Standard 90.1-2007 was conducted. All 44 addenda processed by ASHRAE in the creation of Standard 90.1-2007 from Standard 90.1-2004 were evaluated by the U.S. Department of Energy (DOE) for their impact on energy efficiency. DOE preliminarily determined whether that addenda would have a positive, neutral, or negative impact on overall building efficiency. Table S.1 shows the number of positive and negative changes for each section of Standard 90.1.

Halverson, Mark A.; Liu, Bing; Richman, Eric E.; Winiarski, David W.

2011-01-01T23:59:59.000Z

109

Qualitative risk assessment for the 100-HR-3 groundwater operable unit  

Science Conference Proceedings (OSTI)

This report provides the qualitative risk assessment for the 100-HR-3 operable unit on the Hanford Reservation. 100-HR-3 is a ground water unit. The purpose of the QRA at the 100-HR-3 operable unit is to focus on a predefined set of human and environmental exposure scenarios in order to provides sufficient information that will assist the Tri-Party signatories (Washington State Department of Ecology, EPA and US DOE) in making defensible decisions on the necessity of Interim Remedial Measures. Frequent- and occasional-use exposure scenarios are evaluated in the human health risk assessment to provide bounding estimates of risk. The ecological risk assessment consists of an evaluation of the risks to riparian and aquatic receptors which live in or near the Columbia River.

Vukelich, S.E. [Golder Associates, Inc., Richland, WA (United States)

1994-09-22T23:59:59.000Z

110

Turning Qualitative into Quantitative Evidence: A Well-Used Method Made Explicit  

E-Print Network (OSTI)

#1;#2;#3;#4;#5;#4;#6;#7;#8;#2; #5;#11; #11;#5;#12; #7;#5;#4;#11;#14;#7;#8;#2; #4;#11;#5;#11; #11;#5;#12; #7;#15;#12;#5;#16; #4;#17; #18; #19;#7;#20; #21;#22;#23; #16;#7;#24; #11;#25;#14;#16;#7;#24; #16; #7;#15;#26;#27; #5;#17;#5;#11; A. W. Carus... and Sheilagh Ogilvie #24; #3;#17;#25;#7;#28;#29;#29;#30; #31;#20; #15;#7;#29;#30;!#28; #1;#2;#3;#4;#3;#2;#4;#5;#6;#4;#7;#8;#2;#3;#6; #4; #11;#3;#12;#2;#8;#3;#4; #6;#14;#15;#11;#16;#16;#11;#2;#17; Turning Qualitative into Quantitative Evidence: A Well...

Carus, A W; Ogilvie, Sheilagh

2006-03-14T23:59:59.000Z

111

Interim qualitative risk assessment for an LNG refueling station and review of relevant safety issues  

SciTech Connect

This report is a qualitative assessment of the public and worker risk involved with the operation of a liquefied natural (LNG) vehicle refueling facility. This study includes facility maintenance and operations, tanker truck delivers and end-use vehicle fueling; it does not treat the risks of LNG vehicles on roadways. Accident initiating events are identified by using a Master Logic Diagram, a Failure Modes and Effects analysis and historical operating experiences. The event trees were drawn to depict possible sequences of mitigating events following the initiating events. The phenomenology of LNG and other vehicle fuels is discussed to characterize the hazard posed by LNG usage. Based on the risk modeling and analysis, recommendations are given to improve the safety of LNG refueling stations in the areas of procedures and training, station design, and the dissemination of best practice information throughout the LNG community.

Siu, N.; Herring, S.; Cadwallader, L.; Reece, W.; Byers, J.

1997-07-01T23:59:59.000Z

112

Core Measure Results  

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

Core Measure Core Measure Results FY 07 Results FY 08 Results FY 09 Results FY 10 Target FY 10 Customer Perspective: Customer Satisfaction: -Timeliness NM 81 NM NM NM -Quality NM 90 NM NM NM Effective Service Partnership: -Extent of Customer Satisfaction with the responsiveness, etc. NM 87 NM NM NM Internal Business Perspective: Acquisition Excellence: -Extent to which internal quality control systems are effective 86 87 84 87 88 Most Effective Use of Contracting Approaches to Maximize Efficiency and Cost Effectiveness: Use of Electronic Commerce: - % of delivery & purchase orders issued electronically as a % of total simplified actions 70 72 89 99 100 - % of new competitive transactions > $100K conducted through EC 70 72 91 100 95 Performance Based Service Contracts: - PBSCs awarded as a % of eligible new

113

Recent results from SPEAR  

SciTech Connect

Recent results from SPEAR include measurements of Cabibbo-suppressed decay modes of the tau (Mark II), and a limit on the decay J/psi ..-->.. ..gamma.. + axion (Crystal Ball).

Porter, F.C.

1981-08-01T23:59:59.000Z

114

Search Results Quadrats  

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

lassoquadratss-searchresults-quadrat2007.lasso (1 of 2)2808 10:29 PM Search Results Quadrats 3584 Lederman Science Center Public16B 3586 Lederman Science Center...

115

Search Results Quadrats  

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

2arr.lasso121112 5:07:23 PM Search Results Quadrats Public Quadrats Data collected by the public with the guidance of docents. Click the Quadrat Id to view more details about...

116

Deviation of Stellar Orbits from Test Particle Trajectories Around Sgr A* Due to Tides and Winds  

E-Print Network (OSTI)

Monitoring the orbits of stars around Sgr A* offers the possibility of detecting the precession of their orbital planes due to frame dragging, of measuring the spin and quadrupole moment of the black hole, and of testing the no-hair theorem. Here we investigate whether the deviations of stellar orbits from test-particle trajectories due to wind mass loss and tidal dissipation of the orbital energy compromise such measurements. We find that the effects of stellar winds are, in general, negligible. On the other hand, for the most eccentric orbits (e>0.96) for which an optical interferometer, such as GRAVITY, will detect orbital plane precession due to frame dragging, the tidal dissipation of orbital energy occurs at timescales comparable to the timescale of precession due to the quadrupole moment of the black hole. As a result, this non-conservative effect is a potential source of systematic uncertainty in testing the no-hair theorem with stellar orbits.

Dimitrios Psaltis; Gongjie Li; Abraham Loeb

2012-12-13T23:59:59.000Z

117

Diversifying search results  

Science Conference Proceedings (OSTI)

We study the problem of answering ambiguous web queries in a setting where there exists a taxonomy of information, and that both queries and documents may belong to more than one category according to this taxonomy. We present a systematic approach to ... Keywords: marginal utility, relevance, result diversification

Rakesh Agrawal; Sreenivas Gollapudi; Alan Halverson; Samuel Ieong

2009-02-01T23:59:59.000Z

118

Key Research Results Achievement  

E-Print Network (OSTI)

daylighting options for specific spaces with sample design layouts · Various HVAC system types that achieve%energysavingsovercode.NREL developedthesimulationtoolsandledthe committeethatproducedtheguides. Key Result TheAdvanced school in Greensburg, Kansas, used many of the energy efficiency measures outlined in the Advanced Energy

119

Protecting the Electric Grid from Increasingly Severe Weather Due to  

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

Protecting the Electric Grid from Increasingly Severe Weather Due Protecting the Electric Grid from Increasingly Severe Weather Due to Climate Change Protecting the Electric Grid from Increasingly Severe Weather Due to Climate Change August 12, 2013 - 5:25pm Addthis Transmission lines along Highway 15 outside Victorville, California. | Photo courtesy of Abby Rowling. Transmission lines along Highway 15 outside Victorville, California. | Photo courtesy of Abby Rowling. Patricia A. Hoffman Patricia A. Hoffman Assistant Secretary, Office of Electricity Delivery & Energy Reliability Jim Stock Member - White House Council of Economic Advisers EDITOR'S NOTE: This article originally appeared on WhiteHouse.gov. This week marks the tenth anniversary of one of the worst power outages in the United States, during which tens of millions of Americans were affected

120

Protecting the Electric Grid from Increasingly Severe Weather Due to  

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

Protecting the Electric Grid from Increasingly Severe Weather Due Protecting the Electric Grid from Increasingly Severe Weather Due to Climate Change Protecting the Electric Grid from Increasingly Severe Weather Due to Climate Change August 12, 2013 - 5:25pm Addthis Transmission lines along Highway 15 outside Victorville, California. | Photo courtesy of Abby Rowling. Transmission lines along Highway 15 outside Victorville, California. | Photo courtesy of Abby Rowling. Patricia A. Hoffman Patricia A. Hoffman Assistant Secretary, Office of Electricity Delivery & Energy Reliability Jim Stock Member - White House Council of Economic Advisers EDITOR'S NOTE: This article originally appeared on WhiteHouse.gov. This week marks the tenth anniversary of one of the worst power outages in the United States, during which tens of millions of Americans were affected

Note: This page contains sample records for the topic "qualitative result due" 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

Living Laboratory Demonstration Results  

Science Conference Proceedings (OSTI)

The current market is populated with technologies designed for demand-side management applications by targeting power at the load. Automated panelboards bring a unique opportunity to the realm of demand-side management because they are specifically designed to manage loads at the branch circuit. This report investigates the applications and use of automated panelboards in commercial and industrial applications. The report also includes the results of a test performed on an automated panel designed for re...

2009-02-26T23:59:59.000Z

122

Preliminary Results on Luminaire Designs for Hybrid Solar Lighting Systems  

DOE Green Energy (OSTI)

We report on the design of two hybrid lighting luminaires that blend light from a fiber optic end-emitted solar source with electric T8 fluorescent lamps. Both designs involve the retrofit of a commercially-available recessed fluorescent luminaire with minimal reductions in the original luminaire's optical efficiency. Two methods for high-angle dispersion of fiber optic end-emitted solar light are described and the resulting spatial intensity distributions, simulated using ZEMAX, are compared with standard cylindrical fluorescent tubes. Differences in spatial intensity distribution are qualitatively characterized and potential design improvements discussed.

Earl, D.D.

2001-06-15T23:59:59.000Z

123

Clinical and Isokinetic Results  

E-Print Network (OSTI)

The importance of the menisci for transmitting workloads in the knee joint to protect the articular cartilage is widely acknowledged. Therefore various techniques have been introduced to repair the damaged meniscus. We performed an arthroscopic meniscus repair with a modified outside-in technique on 29 patients (average 25 years) between 2/91 and 10/94. The average time between trauma and operation was 29 weeks (1-186) the follow-up 16.3 months (4-49). All the patients were interviewed by phone 23 were available for clinical respectively isokinetic examination, and categorized following the Lysholm and Lais scores. Twenty-eight patients were happy with the result of the procedure. Following the Lysholm score we found 78 % good]excellent results (Lais score 74%). Isokinetic testing showed a muscular deficit of less than 20 % in 91 % of the cases for flexion (extension 69%). No significant influence neither of the age of the patient nor the time period between trauma and operation on the outcome of the procedure could be found. No complications were reported. Based on our results and well aware of the deleterious long term effects of total meniscectomy the arthroscopic menical repair performed by an experienced surgeon should be generous choice of therapy for the treatment of the ruptured meniscus.

Arthroscopic Meniscus Repair; Christoph Erggelet A; Carmen Grosse B; Hans-rudolph Henche B; Bart De Koning

1997-01-01T23:59:59.000Z

124

WMAP First Year Results  

E-Print Network (OSTI)

The Wilkinson Microwave Anisotropy Probe (WMAP) science team has released results from the first year of operation at the Earth-Sun L2 Lagrange point. The maps are consistent with previous observations but have much better sensitivity and angular resolution than the COBE DMR maps, and much better calibration accuracy and sky coverage than ground-based and balloon-borne experiments. The angular power spectra from these ground-based and balloon-borne experiments are consistent within their systematic and statistical uncertainties with the WMAP results. WMAP detected the large angular-scale correlation between the temperature and polarization anisotropies of the CMB caused by electron scattering since the Universe became reionized after the "Dark Ages", giving a value for the electron scattering optical depth of 0.17+/-0.04. The simplest Lambda-CDM model with n=1 and Omega_tot=1 provides an adequate fit to the WMAP data and gives parameters which are consistent with determinations of the Hubble constant and observations of the accelerating Universe using supernovae. The time-ordered data, maps, and power spectra from WMAP can be found at http://lambda.gsfc.nasa.gov along with 13 papers by the WMAP science team describing the results in detail.

E. L. Wright

2003-06-05T23:59:59.000Z

125

Process Testing Results and Scaling for the Hanford Waste ...  

PEP Testing Objectives • Qualitatively demonstrate leaching and ultrafiltration processes, equipment design and process control strategies • Obtain data to ...

126

BOUSSINESQ MODELING OF SURFACE WAVES DUE TO UNDERWATER LANDSLIDES  

E-Print Network (OSTI)

BOUSSINESQ MODELING OF SURFACE WAVES DUE TO UNDERWATER LANDSLIDES DENYS DUTYKH AND HENRIK KALISCH Abstract. Consideration is given to the influence of an underwater landslide on waves at the surface distinct generation mechanisms of a tsunami are underwater earth- quakes, and submarine mass failures

127

BOUSSINESQ MODELING OF SURFACE WAVES DUE TO UNDERWATER LANDSLIDES  

E-Print Network (OSTI)

BOUSSINESQ MODELING OF SURFACE WAVES DUE TO UNDERWATER LANDSLIDES DENYS DUTYKH # AND HENRIK KALISCH Abstract. Consideration is given to the influence of an underwater landslide on waves at the surface of a tsunami are underwater earth­ quakes, and submarine mass failures. Among the broad class of submarine mass

128

BOUSSINESQ MODELING OF SURFACE WAVES DUE TO UNDERWATER LANDSLIDES  

E-Print Network (OSTI)

BOUSSINESQ MODELING OF SURFACE WAVES DUE TO UNDERWATER LANDSLIDES DENYS DUTYKH AND HENRIK KALISCH Abstract. Consideration is given to the influence of an underwater landslide on waves at the surface tsunamis. Two distinct generation mechanisms of a tsunami are underwater earthquakes, and submarine mass

129

DOE Average Results  

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

DOE DOE Average Results FY 12 DOE Target FY 12 Customer Perspective: Customer Satisfaction: -Timeliness 92 88 -Quality 94 92 Effective Service Partnership: -Extent of Customer Satisfaction with the responsiveness, etc. 90 92 Internal Business Perspective: Acquisition Excellence: -Extent to which internal quality control systems are effective 90 88 Most Effective Use of Contracting Approaches to Maximize Efficiency and Cost Effectiveness: Use of Competition: -% of total $'s obligated on competitive acquisitions >$3000 (Agency Level Only) 94 85 -% of acquisition actions competed for actions > $3000 (Agency Level Only) 65 68 Performance Based Acquisition: - % PBA actions relative to total eligible new acquisition actions (applicable to new actions > $25K) 82

130

Recent Results from HAPPEX  

DOE Green Energy (OSTI)

New measurements of the parity-violating asymmetry in elastic scattering of 3GeV electrons off hydrogen and helium-4 targets at theta{sub lab} = 6 degrees are reported. The helium-4 result is A = (+6.40 {+-} 0.23 (stat) {+-} 0.12 (syst)) * 10{sup -6}. The hydrogen result is A = (-1.58 {+-} 0.12 (stat) {+-} 0.04 (syst)) * 10{sup -6}. The asymmetry for hydrogen is a function of a linear combination of G{sub E}{sup s} and G{sub M}{sup s}, the strange quark contributions to the electric and magnetic form factors of the nucleon respectively, and that for helium-4 is a function solely of G{sub E}{sup s}. The combination of the two measurements separates G{sub E}{sup s} and G{sub M}{sup s} and provide new limits on the role of strange quarks in the nucleon charge and magnetization distributions. We extract G{sub E}{sup s} = 0.002 {+-} 0.014 {+-} 0.007 at Q{sup 2} = 0.077 GeV{sup 2} and G{sub E}{sup s} + 0.09 G{sub M}{sup s} = 0.007 {+-} 0.011 {+-} 0.006 at Q{sup 2} = 0.109 GeV{sup 2}.

Robert Michaels

2006-09-18T23:59:59.000Z

131

Need for computer-assisted qualitative data analysis in the strategic planning of e-government research  

Science Conference Proceedings (OSTI)

The eGovRTD2020 project developed a policy-oriented science and technology roadmapping method for strategic planning of eGovernment research. This method consists of for steps of investigations combining various research techniques. In these steps, a ... Keywords: e-government research, gap analysis, qualitative data analysis, scenario technique, state-of-play, technology roadmapping

Melanie Bicking; Maria A. Wimmer

2010-05-01T23:59:59.000Z

132

Iron Mountain Electromagnetic Results  

SciTech Connect

Iron Mountain Mine is located seventeen miles northwest of Redding, CA. After the completion of mining in early 1960s, the mine workings have been exposed to environmental elements which have resulted in degradation in water quality in the surrounding water sheds. In 1985, the EPA plugged ore stoops in many of the accessible mine drifts in an attempt to restrict water flow through the mine workings. During this process little data was gathered on the orientation of the stoops and construction of the plugs. During the last 25 years, plugs have begun to deteriorate and allow acidic waters from the upper workings to flow out of the mine. A team from Idaho National Laboratory (INL) performed geophysical surveys on a single mine drift and 3 concrete plugs. The project goal was to evaluate several geophysical methods to determine competence of the concrete plugs and orientation of the stopes.

Gail Heath

2012-07-01T23:59:59.000Z

133

Undulator Transportation Test Results  

SciTech Connect

A test was performed to determine whether transporting and handling the undulators makes any changes to their properties. This note documents the test. No significant changes to the test undulator were observed. After the LCLS undulators are tuned and fiducialized in the Magnetic Measurement Facility (MMF), they must be transported to storage buildings and transported to the tunnel. It has been established that the undulators are sensitive to temperature. We wish to know whether the undulators are also sensitive to the vibrations and shocks of transportation. To study this issue, we performed a test in which an undulator was measured in the MMF, transported to the tunnel, brought back to the MMF, and re-measured. This note documents the test and the results.

Wolf, Zachary

2010-11-17T23:59:59.000Z

134

Multiphase modeling and qualitative analysis of the growth of tumor cords  

E-Print Network (OSTI)

In this paper a macroscopic model of tumor cord growth is developed, relying on the mathematical theory of deformable porous media. Tumor is modeled as a saturated mixture of proliferating cells, extracellular fluid and extracellular matrix, that occupies a spatial region close to a blood vessel whence cells get the nutrient needed for their vital functions. Growth of tumor cells takes place within a healthy host tissue, which is in turn modeled as a saturated mixture of non-proliferating cells. Interactions between these two regions are accounted for as an essential mechanism for the growth of the tumor mass. By weakening the role of the extracellular matrix, which is regarded as a rigid non-remodeling scaffold, a system of two partial differential equations is derived, describing the evolution of the cell volume ratio coupled to the dynamics of the nutrient, whose higher and lower concentration levels determine proliferation or death of tumor cells, respectively. Numerical simulations of a reference two-dimensional problem are shown and commented, and a qualitative mathematical analysis of some of its key issues is proposed.

Andrea Tosin

2009-06-27T23:59:59.000Z

135

DT 03/2002Unifying Quantitative and Qualitative Analyses in Management  

E-Print Network (OSTI)

This paper addresses the issue of combining qualitative and quantitative methodologies in management and organization research. It reviews the extant literature, and applies such combined methodology in a research project on vertical strategic alliances, conducted within a just in time manufacturing environment in North America, in 2001. While the major positive and negative aspects are highlighted, I conclude that the successful implementation of this dual method enables a more thorough and robust set of conclusions. Resumen El tema principal abordado en este trabajo es la metodología combinada cuantitativa y cualitativa en la investigación sobre la organización y el management de la empresa. En el trabajo se hace una extensa revisión de la literatura y se aplica tal metodología combinada a un proyecto de investigación sobre alianzas estratégicas, realizado en Estados Unidos en el año 2001. Si bien se destacan los principales aspectos positivos y negativos de una y otra metodología, concluyo que la implementación exitosa de este método dual permite establecer conclusiones más rigurosas y robustas.

Luiz F. Mesquita; Luiz F. Mesquita

2002-01-01T23:59:59.000Z

136

Functional descriptions used in computer support for qualitative scheme generation -- "Schemebuilder"  

E-Print Network (OSTI)

With increased pressures coming from global competition and requirements for greater innovation in product development, designers are hard pressed to deliver designs of higher quality and variety using a repertoire of technological options from different disciplines. This interdisciplinary product development approach has not only removed many of the traditional constraints to design but has now given designers a much wider freedom of choice as to the best solution to a design problem. The focus of this paper is a knowledge-based design environment called Schemebuilder which is a comprehensive and integrated suite of software tools aimed at supporting the designer in the rapid development of product design models in the conceptual, through embodiment stages of design. Illustrated is the use of the software tools in the qualitative generation of alternative schemes, by application of stored working and decomposition principles in the development of a function-means tree-like information structure. With mechatronic product development as the main theme, this paper describes a closely integrated methodology that incorporates a bond graph approach to continuous-time energetic systems and high level Petri nets for the rigorous description of discrete-time information systems. Additionally, a technique is suggested for the decomposition of free format statements of need into the rigorously-defined design context and required functions which form the starting point of the function-means development process.

R. H. Bracewell; J. E. E. Sharpe

1996-01-01T23:59:59.000Z

137

Results from hadron colliders  

SciTech Connect

The present status of hadron collider physics is reviewed. The total cross section for {bar p} + p has been measured at 1.8 TeV: {sigma}{sub tot} = 72.1 {plus minus} 3.3 mb. New data confirm the UA2 observation of W/Z {yields} {bar q}q. Precision measurements of M{sub W} by UA2 and CDF give an average value M{sub W} = 80.13 {plus minus} 0.30 GeV/c{sup 2}. When combined with measurements of M{sub Z} from LEP and SLC this number gives sin{sup 2}{theta}{sub W} = 0.227 {plus minus} 0.006, or m{sub top} = 130{sub {minus}60}{sup +40} GeV/c{sup 2} from the EWK radiative correction term {Delta}r. Evidence for hadron colliders as practical sources of b quarks has been strengthened, while searches for t quarks have pushed the mass above M{sub W}: m{sub top} > 89 GeV/c{sup 2} 95% cl (CDF Preliminary). Searches beyond the standard model based on the missing E{sub T} signature have not yet produced any positive results. Future prospects for the discovery of the top quark in the range m{sub top} < 200 GeV/c{sup 2} look promising. 80 refs., 35 figs., 7 tabs.

Pondrom, L.G. (Wisconsin Univ., Madison, WI (USA))

1990-12-14T23:59:59.000Z

138

Search Results Quadrats  

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

1arr.lasso[3/10/12 2:57:33 PM] 1arr.lasso[3/10/12 2:57:33 PM] Search Results Quadrats Public Quadrats Data collected by the public with the guidance of docents. Click the Quadrat Id to view more details about that record. Quadrat Id School Teacher Prairie Plot 4940 Lederman Science Center Docent16B Fermilab 16B 4941 Lederman Science Center Docent16B Fermilab 16B 4942 Lederman Science Center Docent16B Fermilab 16B 4946 Lederman Science Center Docent16B Fermilab 16B 4947 Lederman Science Center Docent16B Fermilab 16B 4948 Lederman Science Center Docent16B Fermilab 16B 4949 Lederman Science Center Docent16B Fermilab 16B 4950 Lederman Science Center Docent16B Fermilab 16B Database Maintainer: prairie-data@fnal.gov Web Maintainer: ed-webmaster@fnal.gov Last Updated: February 18, 2011 http://eddata.fnal.gov/lasso/quadrats/s-searchresults-quadrat.lasso

139

Rising Sea Levels Due to Global Warming Are Unstoppable  

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

Rising Sea Levels Rising Sea Levels Due to Global Warming Are Unstoppable Rising Sea Levels Due to Global Warming Are Unstoppable Mitigation can slow down but not prevent sea level rise for centuries to come August 5, 2013 Contact: Linda Vu, Lvu@lbl.gov, +1 510 495 2402 washington.jpg Because seawater absorbs heat more slowly than the atmosphere above it, our oceans won't feel the full impact of the greenhouse gases already in the air for hundreds of years. Warm water expands, raising sea levels. (Courtesy W. Washington) Select to enlarge. A reduction in greenhouse gas emissions could greatly lessen the impacts of climate change. However, the gases already added to the atmosphere ensure a certain amount of sea level rise to come, even if future emissions are reduced. A study by National Center for Atmospheric Research (NCAR)

140

Plasma Frequency Shift Due to a Slowly Rotating Compact Star  

E-Print Network (OSTI)

We investigate the effects of a slowly rotating compact gravitational source on plasma oscillations using the gravitoelectromagnetic approximation to General Relativity. It is shown that there is a shift in the plasma frequency and hence in the refractive index of the plasma due to the gravitomagnetic force. Estimates for the difference in frequency of radially transmitted electromagnetic signals are given for typical compact star candidates. 1

Babur M. Mirza; Hamid Saleem

2005-01-01T23:59:59.000Z

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141

MIGRATION RATES OF PLANETS DUE TO SCATTERING OF PLANETESIMALS  

SciTech Connect

Planets migrate due to the recoil they experience from scattering solid (planetesimal) bodies. To first order, the torques exerted by the interior and exterior disks will cancel, analogous to the cancellation of the torques from the gravitational interaction with the gas (Type-I migration). Assuming the dispersion-dominated regime and power laws characterized by indices {alpha} and {beta} for the surface density and eccentricity profiles, we calculate the net torque on the planet. We consider both distant encounters and close (orbit-crossing) encounters. We find that the close and distant encounter torques have opposite signs with respect to {alpha} and {beta}; and that the torque is especially sensitive to the eccentricity gradient {beta}. Compared to Type-I migration due to excitation of density waves, the planetesimal-driven migration rate is generally lower due to the lower surface density of solids in gas-rich disk, although this may be partially or fully offset when their eccentricity and inclinaton are small. Allowing for the feedback of the planet on the planetesimal disk through viscous stirring, we find that under certain conditions a self-regulated migration scenario emerges, in which the planet migrates at a steady pace that approaches the rate corresponding to the one-sided torque. If the ratio of the local disk mass in planetesimals to planet mass is low, however, migration will stall. We quantify the boundaries separating the three accretion regimes.

Ormel, C. W. [Astronomy Department, University of California, Berkeley, CA 94720 (United States); Ida, S. [Department of Earth and Planetary Sciences, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8551 (Japan); Tanaka, H., E-mail: ormel@astro.berkeley.edu, E-mail: ida@geo.titech.ac.jp, E-mail: hide@lowtem.hokudai.ac.jp [Institute of Low Temperature Science, Hokkaido University, Sapporo 060-0819 (Japan)

2012-10-20T23:59:59.000Z

142

Modification of the aging dynamics of glassy polymers due to a temperature step  

E-Print Network (OSTI)

Molecular dynamics simulations are used to investigate the connection between thermal history and physical aging in polymer glasses, in particular the effects of a temperature square step. Measurements of two-time correlation functions show that a negative temperature step causes "rejuvenation" of the sample: the entire spectrum of relaxation times appears identical to a younger specimen that did not experience a temperature step. A positive temperature step, however, leads to significant changes in the relaxation times. At short times, the dynamics are accelerated (rejuvenation), whereas at long times the dynamics are slowed (over-aging). All findings are in excellent qualitative agreement with recent experiments. The two regimes can be explained by the competing contributions of dynamical heterogeneities and faster aging dynamics at higher temperatures. As a result of this competition, the transition between rejuvenation and over-aging depends on the length of the square step, with shorter steps causing more rejuvenation and longer steps causing more over-aging. Although the spectrum of relaxation times is greatly modified by a temperature step, the van Hove functions, which measure the distribution of particle displacements, exhibit complete superposition at times when the mean-squared displacements are equal.

Mya Warren; Joerg Rottler

2008-08-13T23:59:59.000Z

143

Neutrino Energy Loss Rates due to {sup 54,55,56}Fe in Stellar Environment  

Science Conference Proceedings (OSTI)

Neutrino energy loss rates are required as a key nuclear physics input parameter in the simulation codes of core-collapse supernovae of massive stars. The weak interaction rates due to isotopes of iron, {sup 54,55,56}Fe, are considered to play an important role during the presupernova evolution of massive stars. Proton-neutron quasi-particle random phase approximation (pn-QRPA) theory has recently being used for a microscopic calculation of stellar weak interaction rates of iron isotopes with success. The calculation of neutrino energy loss rates due to {sup 54,55,56}Fe is presented along with a comparison with large scale shell model results.

Nabi, Jameel-Un [Faculty of Engineering Sciences, GIK Institute of Engineering Sciences and Technology, Topi 23640, Swabi, NWFP (Pakistan)

2010-06-01T23:59:59.000Z

144

Plasma Frequency Shift Due to a Slowly Rotating Compact Star  

E-Print Network (OSTI)

We investigate the effects of a slowly rotating compact gravitational source on electron oscillations in a homogeneous electrically neutral plasma in the absence of an external electric or magnetic field. Neglecting the random thermal motion of the electrons we assume the gravitoelectromagnetic approximation to the general theory of relativity for the gravitational field. It is shown that there is a shift in the plasma frequency and hence in the dielectric constant of the plasma due to the gravitomagnetic force. We also give estimates for the difference in the frequency of radially transmitted electromagnetic signals for typical compact star candidates.

Babur M. Mirza; Hamid Saleem

2005-01-01T23:59:59.000Z

145

Charge Transport Anisotropy Due to Grain Boundaries in Directionally  

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

Charge Transport Anisotropy Due to Grain Charge Transport Anisotropy Due to Grain Boundaries in Directionally Crystallized Thin Films of Regio-Regular Poly(3-hexylthiophene) Semicrystalline polymers, such as polythiophenes, hold much promise as active layers in printable electronic devices such as photovoltaic cells, sensors, and thin film transistors. As organic semiconductors approach commercialization, there is a need to better understand the relationship between charge transport and microstructure, in particular, to identify the inherent bottlenecks to charge transport. In semicrystalline and polycrystalline materials, charge transport is most likely dominated by grain-boundary effects, although the exact mechanism is not well understood. Unfortunately, grain boundaries in semicrystalline thin films are difficult to characterize: the grains are too small to allow for measurements across individual grain boundaries (as is often done for polycrystalline films of small molecules) and bulk measurements are complicated by the unknown orientation of polymer chains within the grain. To better understand the effect of chain orientation on grain boundaries, we use anisotropic thin films of poly(3-hexylthiophene) (P3HT) - one of the most well-studied polymeric semiconductors, as a tool to study charge transport.

146

PREDICTION OF SURFACE SETTLEMENT DUE TO THE DISPLACEMENT OF SOFT ZONES  

Science Conference Proceedings (OSTI)

In areas composed of coastal plain sediments, soft zones subjected to partial overburden may be present in the subsurface. During or after a seismic event, these soft zones may be compressed. The resulting displacement due to the deformation of the soft zones will propagate to the ground surface and cause the surface to settle. This paper presents a method to predict the settlement at the surface due to the propagation of the displacement from the soft zones. This method is performed by discretizing the soft zones into multiple clusters of finite sub-areas or subspaces. Settlement profile at the ground surface due to the displacement of each sub-area or subspace is computed assuming the shape is a normal distribution function. Settlement due to the displacement of the soft zones can then be approximated by adding the settlements computed for all the sub-areas or subspaces. This method provides a simple and useful tool for the prediction of the settlement profile and the results are consistent with those obtained from the finite difference analysis.

Li, W

2008-03-03T23:59:59.000Z

147

Results  

Science Conference Proceedings (OSTI)

... Stoichiometric calculations [32] indicate that these two samples would contain approximately the same volume fractions of CSH gel, which suggests ...

2002-05-08T23:59:59.000Z

148

Service user and carer experiences of seeking help for a first episode of psychosis: a UK qualitative study  

E-Print Network (OSTI)

, Estroff S, Perkins D, Penn D: Recognising and responding to early psychosis: a qualitative analysis of individual narratives. Psychiatric Services 2008, 59(1):96-99. 14. Lincoln C, McGorry P: Pathways to care in early psychosis: clinical and consumer... involvement in help-seeking as determinants of duration of untreated psychosis. Social Psychiatry and Psychiatric Epidemiology 2008, 43:975-982. 28. De Haan L, Peters B, Dingemans P, Wouters L, Linszen D: Attitudes of patients towards the first psychotic...

Tanskanen, Sanna; Morant, Nicola; Hinton, Mark; Lloyd-Evans, Brynmor; Crosby, Michelle; Killaspy, Helen; Raine, Rosalind; Pilling, Stephen; Johnson, Sonia

2011-09-30T23:59:59.000Z

149

Economic Impacts of Carbon Taxes: Detailed Results  

Science Conference Proceedings (OSTI)

Due to the possibility that rising concentrations of atmospheric greenhouse gases might cause undesirable climate change, policies to restrict emissions of carbon dioxide, a greenhouse gas, have been proposed. Such proposals frequently take the form of carbon taxes. This report presents the detailed results of an examination of the economic costs of carbon taxes, including where and how the U.S. economy would be impacted.

1995-01-04T23:59:59.000Z

150

The transfer of training and skills by Texas State 4-H Council members: A qualitative study  

E-Print Network (OSTI)

This study examined the elements that affect the transfer of training and skills by Texas State 4-H Council members. It described the patterns of motivation and learning styles of former State 4-H Council members, as well as the demonstration of leadership life skills. This study also described the leadership experiences of former State 4-H Council members after their council year concludes. The researcher used a purposive sampling technique to identify former members of the Texas State 4-H Council who were willing to discuss their experiences. A snowball sampling technique was used in which the members of the first group identified the remainder of the sample. There were fifteen individuals interviewed. Traditional qualitative research methodologies were used to collect and triangulate data. These methods included interviews, participant observation, and document analysis. The researcher used documented methods of dependability (dependability audit and reflexive journaling), transferability (thick description, purposive sample, and reflexive journaling), confirmability (confirmability audit and the reflexive journal), and credibility (persistent observation, triangulation, peer debriefing, member checking, and reflexive journaling) to establish trustworthiness. The major findings of the study were as follows: 1) State 4-H Council members tend to be extrinsically motivated individuals that follow self-determining pattern of motivational needs including the needs for a sense of competence, inter-relatedness, and autonomy; 2) Eight of the State 4-H Council members demonstrated a mix of social learning theory and experiential learning theory during the years of preparation prior to attaining their State 4-H Council positions; 3) State 4-H Council members demonstrated a command of the seven leadership life skill categories; and 4) The transfer of skills and knowledge by State 4-H Council members is affected both positively and negatively by the elements of training transfer. Recommendations include implementation of a needs assessment to determine training content and greater experiential training opportunities. The addition of personality types, gender and sensitivity training, and positive conflict resolution should be added to training agendas. State 4-H Council members should be afforded greater decision-making power, beyond that of deciding themes for state events.

Bruce, Jacklyn Antoinette

2005-05-01T23:59:59.000Z

151

Search Results | Department of Energy  

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

Search Results Search Results Search Results Enter terms Search Showing 1 - 10 of 49,006 results. Rebate COOLAdvantage Program '''''Note: Residents affected by Hurricane Sandy...

152

Slowing down of ions due to Coulomb collisions in a plasma  

SciTech Connect

Lenard's form of the plasma kinetic equation incorporating dynamic shielding was used to calculate the rate of energy loss by fast ions due to Coulomb collisions inside a plasma. The rate thus calculated is significantly larger than the results obtained on the basis of convential theories with static especially if the plasma is very dense and the ion speed is not too high.

Nishimura, K.

1979-01-01T23:59:59.000Z

153

Dose distribution for /sup 125/I implants due to anisotropic radiation emission and unknown seed orientation  

SciTech Connect

Variations in dose distribution due to anisotropic radiation emission around /sup 125/I seeds and a lack of knowledge about the orientation of the implanted seeds have been investigated. Upper and lower bounds for dose distributions have been calculated for planar implants using the experimentally determined angular dose distribution around a typical /sup 125/I seed. Results of our study suggest that significant dose variations in the center and the periphery of the implanted area are possible.

Prasad, S.C.; Bassano, D.A.; Fear, P.I.

1987-03-01T23:59:59.000Z

154

Boussinesq modeling of surface waves due to underwater landslides  

E-Print Network (OSTI)

Consideration is given to the influence of an underwater landslide on waves at the surface of a shallow body of fluid. The equations of motion which govern the evolution of the barycenter of the landslide mass include various dissipative effects due to bottom friction, internal energy dissipation, and viscous drag. The surface waves are studied in the Boussinesq scaling, with time-dependent bathymetry. A numerical model for the Boussinesq equations is introduced which is able to handle time-dependent bottom topography, and the equations of motion for the landslide and surface waves are solved simultaneously. The numerical solver for the Boussinesq equations can also be restricted to implement a shallow-water solver, and the shallow-water and Boussinesq configurations are compared. A particular bathymetry is chosen to illustrate the general method, and it is found that the Boussinesq system predicts larger wave run-up than the shallow-water theory in the example treated in this paper. It also found that the fi...

Dutykh, Denys

2013-01-01T23:59:59.000Z

155

Deactivation of ice nuclei due to atmospherically relevant surface coatings  

SciTech Connect

The ice nucleation characteristics of Arizona Test Dust (ATD) and illite clay, surrogates for atmospheric ice nuclei, have been determined at the Aerosol Interactions and Dynamics in the Atmosphere (AIDA) chamber located at the Research Center Karlsruhe in Germany. The objective of this research was to determine the effect of sulphuric acid and ammonium sulphate coatings on the ability of these mineral dust surrogates to nucleate ice in an environment where particles realistically compete for water vapor. Coated ATD particles required higher saturations at all investigated temperatures, from -20 to -45º C, than did identical uncoated particles. Freezing of coated particles often required saturations approaching those for the homogeneous freezing of aqueous solutions of the coating material alone. Less pronounced effects were found for illite although the presence of a coating consistently increased the saturation or decreased the temperature required for ice formation. Analysis of ice residue at the single particle level suggests that the first coated particles to freeze had thinner or incomplete coatings when compared to particles that froze later in the expansion. This observation highlights a need to verify coating properties since an assumption of homogeneity of a group of coated aerosol may be incorrect. The increase in saturation ratio for freezing suggests that gas-phase uptake of sulphates, a large fraction of which are due to anthropogenic emissions, will reduce the ice and mixed-phase cloud formation potential of atmospheric ice nuclei.

Cziczo, Daniel J.; Froyd, Karl D.; Gallavardin, S. J.; Moehler, Ottmar; Benz, Stefan; Saathoff, Harald; Murphy, Daniel M.

2009-11-23T23:59:59.000Z

156

Transverse emittance dilution due to coupler kicks in linear accelerators  

E-Print Network (OSTI)

One of the main concerns in the design of low emittance linear accelerators (linacs) is the preservation of beam emittance. Here we discuss one possible source of emittance dilution due to transverse electromagnetic fields in the accelerating cavities of the linac caused by the power coupler geometry. It is common wisdom that emittance growth from coupler kicks can be strongly reduced by having the coupler location alternate from above to below the beam pipe so that the coupler kick from one cavity is compensated by that of the next. While this is correct, alternating the coupler location requires large technical changes in superconducting cryomodules where cryogenic pipes are arranged parallel to a string of several cavities. We show here that cavities with high external $Q$ have coupler kicks that change the sign of their phase when the coupler is moved from before to after the cavity, as long as one accelerates on crest. This implies that the emittance growth from one cavity can be canceled by the next, pr...

Buckley, Brandon

2007-01-01T23:59:59.000Z

157

Drop Growth Due to High Supersaturation Caused by Isobaric Mixing  

Science Conference Proceedings (OSTI)

A new conceptual model is proposed for enhanced cloud droplet growth during condensation. Rapid droplet growth may occur in zones of high supersaturation resulting from isobaric mixing of saturated volumes with different temperatures. Cloud ...

Alexei V. Korolev; George A. Isaac

2000-05-01T23:59:59.000Z

158

Schools - Electronic Equipment Failures Due to Electrical Storms  

Science Conference Proceedings (OSTI)

This power quality (PQ) case study presents the investigation of multiple failures of electronic equipment such as computers, telephones, and alarm sensors throughout a school system, usually as a result of electrical storms.

2003-12-31T23:59:59.000Z

159

Modern Methods for Lipid AnalysisChapter 7 Qualitative and Quantitative Analysis of Triacylglycerolsby Atmospheric Pressure Ionization (APCI and ESI) Mass Spectrometry Techniques  

Science Conference Proceedings (OSTI)

Modern Methods for Lipid Analysis Chapter 7 Qualitative and Quantitative Analysis of Triacylglycerolsby Atmospheric Pressure Ionization (APCI and ESI) Mass Spectrometry Techniques Methods and Analyses eChapters Methods - Analyses Books AO

160

A Qualitatively Realistic Low-Order Model of the Extratropical Low-Frequency Variability Built from Long Records of Potential Vorticity  

Science Conference Proceedings (OSTI)

A low-order deterministic qualitative model is formulated in order to simulate extratropical low-frequency variability. This deterministic model is based on a filtering of the potential vorticity equation on the 315-K isentrope and a projection ...

Eduardo Da Costa; Robert Vautard

1997-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "qualitative result due" 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

Apparent spatial blurring and displacement of a point optical source due to cloud scattering  

Science Conference Proceedings (OSTI)

A Monte Carlo algorithm is used to determine the apparent spatial blurring of a terrestrial 1.07 micron optical point source due to cloud scattering as seen from space. The virtual image of a point source over a virtual source plane area 22.4 x 22.4 square kilometers arising from cloud scattering was determined for stratus clouds (NASA cloud number 5) and altostratus clouds optical source arises from photon scattering by cloud water droplets. Displacement of the virtual source is due to the apparent illumination of the cloud top region directly about the actual source which when viewed at a nonzero look angle gives a projected displacement of the apparent source relative to the actual source. These features are quantified by an analysis of the Monte Carlo computational results.

Brower, K.L.

1997-09-01T23:59:59.000Z

162

Harmonic generation of ion waves due to Brillouin backscattering  

Science Conference Proceedings (OSTI)

We report results of simulations of stimulated Brillouin backscatter in which we see the second spatial harmonic of the ion density fluctuation and compare with linear, fluid theory. We also describe examples of the competition between Raman and Brillouin backscatter. 21 refs., 3 figs.

Estabrook, K.; Kruer, W.L.; Haines, M.G.

1985-05-22T23:59:59.000Z

163

Potential Operational Risk Due to Changes in Arsenic Regulatory Values  

Science Conference Proceedings (OSTI)

Inorganic arsenic (iAs) is an environmentally ubiquitous toxic metalloid associated with an increased risk of both cancer and non-cancer effects in exposed individuals. However, disagreement exists on what level exists, if any, that will not result in adverse health outcomes. As such, federal and state agencies rely on the development of scientific estimates of the exposure-to-response relationship to characterize and manage risk across an array of regulatory programs. In the United States, the ...

2012-12-31T23:59:59.000Z

164

Settling of loose-fill insulations due to vibration  

SciTech Connect

Vibration and impact testing of loose-fill cellulosic, fiberglass, and rock wool insulations has been carried out to provide a data base for settled density tests. The ratio of final density to initial density for the three materials has been determined for repeated 19-mm (0.75-in.) drops, repeated 152-mm (6.0-in.) drops, and vibrations at frequencies from 10 to 60 Hz with displacements from 0.1 mm (0.004 in.) to 6.35 mm (0.25 in.). Repeated 19-mm or 152-mm drops increased the density ratio for rock wool insulation specimens the most, while the cellulosic insulation specimens were affected the least. Density ratios after 200 19-mm drops averaged 1.75 for loose-fill rock wool, 1.45 for loose-fill fiberglass, and 1.27 for loose-fill cellulosic insulations. Vibration tests for 7200 s at 0.1-mm displacement and 15 Hertz produced negligible changes in the densities of all three loose-fill insulations. An 1800-s vibration test at 2.5 mm (0.1 in.) and 10 Hz resulted in average density ratios of 1.05, 1.11, and 1.18 for specimens of loose-fill cellulosic, rock wool, and fiberglass insulations, respectively. Changes in either frequency of vibration, displacement, or test duration can be used to achieve a wide range of laboratory results. Efforts to correlate laboratory results with in situ density measurements are presented.

Yarbrough, D.W.; McElroy, D.L.; Wright, J.W.

1981-12-01T23:59:59.000Z

165

Settling of loose-fill insulations due to vibration  

SciTech Connect

Vibration and impact testing of loose-fill cellulosic, fiberglass, and rock wool insulations has been carried out to provide a data base for settled density tests. The ratio of final density to initial density for the three materials has been determined for repeated 19-mm (0.75-in.) drops, repeated 152-mm (6.0-in.) drops, and vibrations at frequencies from 10 to 60 Hz with displacements from 0.1 mm (0.004 in.) to 6.35 mm (0.25 in.). Repeated 19-mm or 152-mm drops increased the density ratio for rock wool insulation specimens the most, while the cellulosic insulation specimens were affected the least. Density ratios after 200 19-mm drops averaged 1.75 for loose-fill rock wool, 1.45 for loose-fill fiberglass, and 1.27 for loose-fill cellulosic insulations. Vibration tests for 7200 s at 0.1-mm displacement and 15 Hertz produced negligible changes in the densities of all three loose-fill insulations. An 1800-s vibration test at 2.5 mm (0.1 in.) and 10 Hz resulted in average density ratios of 1.05, 1.11, and 1.18 for specimens of loose-fill cellulosic, rock wool, and fiberglass insulations, respectively. Changes in either frequency of vibration, displacement, or test duration can be used to achieve a wide range of laboratory results. Efforts to correlate laboratory results with in situ density measurements are presented.

Yarbrough, D.W.; Wright, J.H.; McElroy, D.L.; Scanlan, T.F.

1983-01-01T23:59:59.000Z

166

Comment on "Air Emissions Due to Wind and Solar Power" and Supporting Information  

E-Print Network (OSTI)

due to wind and solar power. Environ. Sci. Technol. (2)Emissions Due to Wind and Solar Power” Andrew Mills, ? , †due to wind and solar power. Environ. Sci. Technol. (2)

Mills, Andrew D.

2011-01-01T23:59:59.000Z

167

1998 NERSC User Survey Results  

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

8 User Survey Results 1998 User Survey Results Respondent Summary NERSC has completed its first user survey since its move to Lawrence Berkeley National Laboratory. The survey is...

168

Analysis of annual energy savings due to radiant barriers  

Science Conference Proceedings (OSTI)

Radiant barriers are receiving increasing attention as an energy conservation measure for residential buildings, especially for warmer climates. They are being actively promoted for use in residential attics, sometimes with exaggerated claims about savings in utility bills that will results from their installation. In order to provide consumers with factual information that would assist them in deciding upon an investment in a radiant barrier, the Department of Energy, along with an industry advisory panel, has developed a Radiant Barrier Fact Sheet. A major part of this fact sheet is estimates of energy savings that might be expected from radiant barriers in various climates. This paper presents the details of the methodology underlying the energy savings estimates, and gives a summary of values listed in the Fact Sheet. The energy savings estimates were obtained from calculations using a detailed attic thermal model coupled with DOE-2.1C. A life cycle cost analysis was performed to estimate the present value savings on utility fuel costs. The results show that the fuel cost savings vary significantly with the level of conventional insulation already in the attic and from one climate to another.

Wilkes, K.E.

1990-01-01T23:59:59.000Z

169

Prediction of subsidence: Relationship between lowering of formation pressure and subsidence due to fluid withdrawal  

Science Conference Proceedings (OSTI)

Abnormally low formation pressures develop in petroleum reservoirs during intensive oil and gas production or in aquifers as a result of water extraction. A simple method is presented for calculating (predicting) the amount of compaction (and resulting subsidence) from the pressure drop in formation due to production, i.e., the increase in the effective pressure p{sub e} (p{sub e} = p{sub t} {minus} p{sub p}, where p{sub t} is the total overburden pressure and p{sub p} is the fluid or pore pressure). This work is based on extensive data collected in Russia. For example, large petroliferous areas in Western Siberia became marshlands as a result of fluid withdrawal. One should remember that sophisticated methods, such as FSMT (direct measurement of rock compaction by wireline tools in situ) and GPS (measurement of surface subsidence by satellite microwave Doppler techniques), are not yet available in many areas of the world.

Serebryakov, V.A.; Chilingar, G.V.

2000-06-01T23:59:59.000Z

170

Nonlinear dissipation of circularly polarized Alfven waves due to the beam-induced obliquely propagating waves  

SciTech Connect

In the present study, the dissipation processes of circularly polarized Alfven waves in solar wind plasmas including beam components are numerically discussed by using a 2-D hybrid simulation code. Numerical results suggest that the parent Alfven waves are rapidly dissipated due to the presence of the beam-induced obliquely propagating waves, such as kinetic Alfven waves. The nonlinear wave-wave coupling is directly evaluated by using the induction equation for the parent wave. It is also observed both in the 1-D and 2-D simulations that the presence of large amplitude Alfven waves strongly suppresses the beam instabilities.

Nariyuki, Y. [Faculty of Human Development, University of Toyama, 3190, Toyama City, Toyama 930-8555 (Japan); Hada, T. [Department of Earth System Science and Technology, Kyushu University, 6-1, Kasuga City, Fukuoka 816-8580 (Japan); Tsubouchi, K. [Department of Earth and Planetary Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033 (Japan)

2012-08-15T23:59:59.000Z

171

Reduction of Statistical Power Per Event Due to Upper Lifetime Cuts in Lifetime Measurements  

E-Print Network (OSTI)

A cut on the maximum lifetime in a lifetime fit not only reduces the number of events, but also, in some circumstances dramatically, decreases the statistical significance of each event. The upper impact parameter cut in the hadronic B trigger at CDF, which is due to technical limitations, has the same effect. In this note we describe and quantify the consequences of such a cut on lifetime measurements. We find that even moderate upper lifetime cuts, leaving event numbers nearly unchanged, can dramatically increase the statistical uncertainty of the fit result.

Jonas Rademacker

2005-02-25T23:59:59.000Z

172

A resilience assessment framework for infrastructure and economic systems : quantitative and qualitative resilience analysis of petrochemical supply chains to a hurricane.  

SciTech Connect

In recent years, the nation has recognized that critical infrastructure protection should consider not only the prevention of disruptive events, but also the processes that infrastructure systems undergo to maintain functionality following disruptions. This more comprehensive approach has been termed critical infrastructure resilience (CIR). Given the occurrence of a particular disruptive event, the resilience of a system to that event is the system's ability to efficiently reduce both the magnitude and duration of the deviation from targeted system performance levels. Sandia National Laboratories (Sandia) has developed a comprehensive resilience assessment framework for evaluating the resilience of infrastructure and economic systems. The framework includes a quantitative methodology that measures resilience costs that result from a disruption to infrastructure function. The framework also includes a qualitative analysis methodology that assesses system characteristics that affect resilience in order to provide insight and direction for potential improvements to resilience. This paper describes the resilience assessment framework. This paper further demonstrates the utility of the assessment framework through application to a hypothetical scenario involving the disruption of a petrochemical supply chain by a hurricane.

Ehlen, Mark Andrew; Vugrin, Eric D.; Warren, Drake E.

2010-03-01T23:59:59.000Z

173

Dust explosion hazards due to blasting of oil shale  

SciTech Connect

The conditions favoring secondary explosions of dust or gas accompanying the blasting of oil shale are the subject of continuing investigation by the Bureau of Mines. In the present study, oil shale dust was dispersed in a gallery and ignited by various blasting agents blown out of a cannon according to a standard testing procedure. Parallel tests were conducted in the Bureau's Experimental Mine to test propagation as well as ignition of oil shale dust. In both gallery and mine, the minimum explosion limits were determined as a function of dust loading, weight and type of blasting agent, and amount of added methane. The results of these experiments are compared with previous measurements using methane-air explosions as an initiation source. In view of recent mine dust sampling data, the main explosion hazard in nongassy oil shale mines is likely to be limited to the region of the face. But in gassy mines, dust-gas explosions could be expected to propagate considerable distances.

Richmond, J.K.; Beitel, F.P.

1984-04-01T23:59:59.000Z

174

Acceleration disturbances due to local gravity gradients in ASTROD I  

E-Print Network (OSTI)

The Astrodynamical Space Test of Relativity using Optical Devices (ASTROD) mission consists of three spacecraft in separate solar orbits and carries out laser interferometric ranging. ASTROD aims at testing relativistic gravity, measuring the solar system and detecting gravitational waves. Because of the larger arm length, the sensitivity of ASTROD to gravitational waves is estimated to be about 30 times better than Laser Interferometer Space Antenna (LISA) in the frequency range lower than about 0.1 mHz. ASTROD I is a simple version of ASTROD, employing one spacecraft in a solar orbit. It is the first step for ASTROD and serves as a technology demonstration mission for ASTROD. In addition, several scientific results are expected in the ASTROD I experiment. The required acceleration noise level of ASTROD I is 10^-13 m s^-2 Hz^{-1/2} at the frequency of 0.1 mHz. In this paper, we focus on local gravity gradient noise that could be one of the largest acceleration disturbances in the ASTROD I experiment. We have carried out gravitational modelling for the current test-mass design and simplified configurations of ASTROD I by using an analytical method and the Monte Carlo method. Our analyses can be applied to figure out the optimal designs of the test mass and the constructing materials of the spacecraft, and the configuration of compensation mass to reduce local gravity gradients.

Sachie Shiomi

2005-10-10T23:59:59.000Z

175

Timing and duration of subsidence due to longwall mining  

Science Conference Proceedings (OSTI)

Subsidence data gathered by the US Bureau of Mines over a series of longwall panels in the Pittsburgh Coalbed were studied to obtain insight as to the role of time in the subsidence process. It was found that subsidence began essentially with undermining and was completed within 1 year. The progress of the subsidence was dependent upon location above the panel. Subsidence in the central area of the subsidence trough where subsidence is the greatest, was about 90% complete by the time the face had progressed a distance equal to one overburden thickness beyond a particular surface point. For a point over the rib of the longwall panel, the subsidence was only about 60% completed at this time. Data from three other sites in the northern Appalachian Coal Basin were analyzed to determine if an anomaly or the true characteristics of the subsidence process had been observed. All sites behaved similarly in the central portion of the subsidence trough. However, the subsidence of points over and adjacent to the ribs of the longwall panels was site specific. The fact that movement across the width of the panel was not uniform should be taken into account in assessing damages or the potential for damages resulting from mining-induced subsidence.

Jeran, P.W.; Trevits, M.A.

1995-09-01T23:59:59.000Z

176

Ensemble Clustering for Result Diversification  

Science Conference Proceedings (OSTI)

Page 1. Ensemble Clustering for Result Diversification Dong Nguyen Human Media Interaction University of Twente d.nguyen@utwente.nl ...

2013-02-12T23:59:59.000Z

177

An evaluation of an empirical model for stall delay due to rotation for HAWTS  

DOE Green Energy (OSTI)

The objective of this study was to evaluate the Corrigan and Schillings stall delay model for predicting rotor performance for horizontal axis wind turbines. Two-dimensional (2D) wind tunnel characteristics with and without stall delay were used in the computer program PROP93 to predict performance for the NREL Combined Experiment Rotor (CER) and a lower solidity commercial machine. For the CER, predictions were made with a constant-chord/twisted blade and a hypothetical tapered/twisted blade. Results for the constant-chord/twisted blade were compared with CER data. Predicted performance using this empirical stall-delay method provided significant increases in peak power over 2D post-stall airfoil characteristics. The predicted peak power increase due to stall delay for the CER was found to be quite large (20% to 30%) as a result of its high blade solidity. For a more typical, lower-solidity commercial blade the predicted peak power increase was 15% to 20%. As described in the paper, correlation with test data was problematic due to factors not related to the stall-delay model.

Tangler, J.L. [National Renewable Energy Lab., Golden, CO (United States); Selig, M.S. [Univ. of Illinois, Urbana, IL (United States). Dept. of Aeronautical and Astronautical Engineering

1997-07-01T23:59:59.000Z

178

Communicating Results | Department of Energy  

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

Communicating Results Communicating Results Communicating Results Communicating Results: Provide exam results to participants, as well as information regarding any conditions that may require follow-up medical care with their personal physicians or specialists, and provide information regarding possible compensation for work-related illnesses. Follow-up care is not covered by the program. Occupational medicine physicians review the results from the screening exams, along with the completed medical and occupational exposure history questionnaires, to determine whether there are any abnormal findings that may require immediate attention or whether the findings may have been caused by a work-related exposure. Participants requiring urgent medical attention for an abnormal test result are contacted immediately by phone,

179

A Qualitative Assessment of Diversion Scenarios for an Example Sodium Fast Reactor Using the GEN IV PR&PP Methodology  

Science Conference Proceedings (OSTI)

FAST REACTORS;NUCLEAR ENERGY;NUCLEAR MATERIALS MANAGEMENT;PROLIFERATION;SAFEGUARDS;THEFT; A working group was created in 2002 by the Generation IV International Forum (GIF) for the purpose of developing an internationally accepted methodology for assessing the Proliferation Resistance of a nuclear energy system (NES) and its individual elements. A two year case study is being performed by the experts group using this methodology to assess the proliferation resistance of a hypothetical NES called the Example Sodium Fast Reactor (ESFR). This work demonstrates how the PR and PP methodology can be used to provide important information at various levels of details to NES designers, safeguard administrators and decision makers. The study analyzes the response of the complete ESFR nuclear energy system to different proliferation and theft strategies. The challenges considered include concealed diversion, concealed misuse and 'break out' strategies. This paper describes the work done in performing a qualitative assessment of concealed diversion scenarios from the ESFR.

Zentner, Michael D.; Coles, Garill A.; Therios, Ike

2012-01-20T23:59:59.000Z

180

Search Results | Department of Energy  

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

Search Results » Search Results Search Results » Search Results Search Results Enter terms Search Showing 1 - 10 of 48,807 results. Rebate COOLAdvantage Program '''''Note: Residents affected by Hurricane Sandy are eligible for an additional rebate of $200 for qualifying heat pumps, geothermal heat pumps, and air conditioners purchased on or after October... http://energy.gov/node/681216 Rebate CPS Energy- Residential Energy Efficiency Rebate Program CPS Energy offers a variety of rebates for energy efficiency related improvements to residential homes, including: appliances, HVAC equipment, insulation, and equipment recycling.. Rebate... http://energy.gov/node/681221 Rebate CPS Energy- Commercial Energy Efficiency Rebates CPS Energy, San Antonio's municipal electric utility, offers energy

Note: This page contains sample records for the topic "qualitative result due" 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

2006 NERSC User Survey Results  

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

6 User Survey Results 6 User Survey Results Show All | 1 2 3 4 5 ... 15 | Next » 2006 User Survey Results Table of Contents Survey Results Users are invited to provide overall comments about NERSC: Here are the survey results: Respondent Demographics Overall Satisfaction and Importance All Satisfaction, Importance and Usefulness Ratings All Usefulness Topics Hardware Resources Software Visualization and Data Analysis HPC Consulting Services and Communications Web Interfaces Training Comments about NERSC Survey Results Many thanks to the 256 users who responded to this year's User Survey. This represents a response rate of about 13 percent of the active NERSC users. The respondents represent all six DOE Science Offices and a variety of home institutions: see Respondent Demographics. The survey responses provide feedback about every aspect of NERSC's

182

Reliability Results of NERSC Systems  

E-Print Network (OSTI)

of various systems at NERSC. They graciously provided meReliability Results of NERSC Systems Akbar Mokhtarani,William Kramer, Jason Hick NERSC - LBNL Abstract In order to

Mokhtarani, Akbar; Petascale Data Storage Institute (PDSI)

2008-01-01T23:59:59.000Z

183

Parameterization of Ice Crystal Conversion Processes Due to Vapor Deposition for Mesoscale Models Using Double-Moment Basis Functions. Part I: Basic Formulation and Parcel Model Results  

Science Conference Proceedings (OSTI)

Observational data collected during the FIRE II experiment showing the existence of bimodal ice spectra along with experimental evidence of the size dependence of riming are utilized in the development of a bimodal ice spectrum parameterization ...

Jerry Y. Harringon; Michael P. Meyers; Robert L. Walko; William R. Cotton

1995-12-01T23:59:59.000Z

184

Indicators of the direct economic impacts due to oil and gas development in the Gulf of Nexico: results of year 1. Volume 2. Narrative  

Science Conference Proceedings (OSTI)

The study investigated the direct employment and salary impacts of oil and gas activities on the Federal Outer Continental Shelf in the Gulf of Mexico during 1984. The study also documented the geographic distribution of these impacts. Primary data for the study was provided by nine major oil and gas operations in the Gulf of Mexico and by several contractors to these companies.

Not Available

1986-01-01T23:59:59.000Z

185

Indicators of the direct economic impacts due to oil and gas development in the Gulf of Mexico: results of year 1. Volume 1. Executive summary  

Science Conference Proceedings (OSTI)

The study investigated the direct employment and salary impacts of oil and gas activities on the Federal Outer Continental Shelf in the Gulf of Mexico during 1984. The study also documented the geographic distribution of these impacts. Primary data for the study were provided by nine major oil and gas operations in the Gulf of Mexico and by several contractors to these companies.

Not Available

1986-01-01T23:59:59.000Z

186

Indicators of the direct economic impacts due to oil and gas development in the Gulf of Mexico: results of year 1. Volume 3. Exhibits and data  

Science Conference Proceedings (OSTI)

The study investigated the direct employment and salary impacts of oil and gas activities on the Federal Outer Continental Shelf in the Gulf of Mexico during 1984. The study also documented the geographic distribution of these impacts. Primary data for this study were provided by nine major oil and gas operations in the Gulf of Mexico and by several contractors to these companies.

Not Available

1986-01-01T23:59:59.000Z

187

Being Proactive to Increasing Supply Chain Security Challenges: A Quantitative and Qualitative Approach  

E-Print Network (OSTI)

Supply chain security has become relevant to both practitioners and academics for years, yet the understanding of this topic is still incomplete. The literature produces relatively few explanatory and confirmatory studies, offers ambiguous definitions and terminology and the theoretical development is inconsistent. In this dissertation, I review relevant research streams and employ four in-depth case studies to conceptualize supply chain security (SCS). I also utilize the principles of human immunology to propose a taxonomy of supply chain security management (SCSM) mechanisms. Building on institutional theory and the taxonomy, I further examine the antecedents as well as the consequences of SCSM mechanisms via a large empirical data set collected during 2011-2013. The sample includes responses from 462 firms. Specifically, in my first model I draw on the institutional theory and posit that five institutional isomorphism pressures (i.e., government, customer, peer, normative, and performance pressure) impact four classes of SCSM mechanisms (i.e., prevention, detection, reaction, and restoration). In addition, shared SCS perception (SSP) and top management commitment (TMC) are hypothesized to moderate (strengthen) the relationships between institutional pressures and SCSM mechanisms. In my second model, I propose that the four classes of mechanisms explain five different supply chain performance dimensions (i.e., security performance, cost performance, supply chain responsiveness, supply chain resilience, and supply chain visibility). I also specify differential effects for both models; some effects are more salient than others. The results suggest that not all institutional pressures motivate the implementation of SCSM mechanisms. While normative pressure and performance pressure act as predominantly powerful predictors of SCSM mechanisms, other pressures appear to have negligible or even adverse effects. Surprisingly, data analysis suggests that coercive institutional pressures (i.e., government pressure and customer pressure) do not exhibit the strongest effects on SCSM mechanisms as the literature would suggest. As far as the moderation effect is concerned, the results illustrate that neither SSP nor TMC interact with all institutional pressures to affect the employment of SCSM mechanisms. In addition, TMC can even impede the implementation of reaction- and restoration-oriented SCSM mechanisms when interacting with government pressure. Regarding supply chain performance, the results demonstrate that SCSM mechanisms have strong effects on multiple supply chain performance measures. Further assessments reveal that the effect of SCSM mechanisms on supply chain security performance is stronger than its effects on other performance dimensions.

Lu, Guanyi

2013-08-01T23:59:59.000Z

188

HEPPA 2011 Session 3. 3.6 Radiation belt electron precipitation due to geomagnetic storms: significance to middle  

E-Print Network (OSTI)

HEPPA 2011 Session 3. 3.6 Radiation belt electron precipitation due to geomagnetic storms, Sodankyl¨a, Finland Geomagnetic storms triggered by coronal mass ejections and high-speed solar-90 km altitudes) as a result of a single geomagnetic storm. The study condi- tions were chosen

Ulich, Thomas

189

Results on hard diffractive production  

Science Conference Proceedings (OSTI)

The results of experiments at hadron colliders probing the structure of the pomeron through hard diffraction are reviewed. Some results on deep inelastic diffractive scattering obtained at HERA are also discussed and placed in perspective. By using a properly normalized pomeron flux factor in single diffraction dissociation as dictated by unitarity

Konstantin Goulianos; The CDF Collaboration

1996-01-01T23:59:59.000Z

190

CDF results on B decays  

SciTech Connect

The authors present recent CDF results on B lifetimes, B meson mass measurements, ratios of branching ratios, and rare decays. In addition, they present the first measurement of time-dependent B{sub d} mixing at CDF. Several results have been updated and a few new ones included since the workshop.

Skarha, J.E. [Johns Hopkins Univ., Baltimore, MD (United States)

1995-05-01T23:59:59.000Z

191

Forward Physics and BRAHMS results  

E-Print Network (OSTI)

We report here the BRAHMS measurements of particle production in d+Au and p+p collisions at RHIC. The results presented here are compared to previous p+A measurements at lower energies in fixed target mode. Some preliminary results on abundances of identified particles at high rapidity are also presented.

Ramiro Debbe; for the BRAHMS Collaboration

2005-06-17T23:59:59.000Z

192

Top physics results at CDF  

SciTech Connect

The most recent results on top quark physics at CDF are reported. Measurements of cross-section and mass are presented, and the status of single top quark production searches are discussed. The results obtained from probing various top quark properties are also presented.

Vickey, Trevor; /Illinois U., Urbana

2005-05-01T23:59:59.000Z

193

Stellite 6 Friction Changes Due to Aging and In-Service Testing  

SciTech Connect

For the past several years, researchers at the Idaho National Engineering and Environmental Laboratory, under the sponsorship of the U.S. Nuclear Regulatory Commission, have been investigating the ability of motor-operated valves to close or open when subjected to design basis flow and pressure loads. Part of this research addresses the friction that occurs at the interface between the valve disc and the valve body seats during operation of a gate valve. In most gate valves, these surfaces are hardfaced with Stellite 6, a cobalt-based alloy. The nuclear industry has developed methods to analytically predict the thrust needed to operate these valves at specific pressure conditions. To produce accurate valve thrust predictions; the analyst must have a reasonably accurate, though conservative, estimate of the coefficient of friction at the disc-to-seat interface. One of the questions that remains to be answered is whether, and to what extent, aging of the disc and seat surfaces affects the disc-to-seat coefficient of friction. Specifically, does the accumulation of a surface film due to aging of these surfaces increase the coefficient of friction and if so, how much? This paper presents results of specimen tests addressing this issue with emphasis on the following: • The change in the friction coefficient of Stellite 6 as it ages and whether the friction reaches a plateau. • The effect periodic gate valve cycling due to in-service testing has on the friction coefficient. • The results of an independent review of the test methods, processes, and the results of the research to date. • The status of ongoing aging and friction testing.

Watkins, John Clifford; DeWall, Kevin George

2001-07-01T23:59:59.000Z

194

Geochemical Implications of Gas Leakage Associated with Geologic CO2 Storage - A Qualitative Review  

SciTech Connect

Leakage from deep storage reservoirs is considered the major risk factor associated with geologic sequestration of CO2. Different schools of thought exist concerning the potential implications of such leakage for near-surface environments. We reviewed the current literature on how CO2 leakage (from storage reservoirs) would likely impact the geochemistry of overlying potable aquifers. Results from experimental and modeling studies point to the potential for both beneficial (e.g. contaminant immobilization) and deleterious (e.g. contaminant mobilization) consequences of CO2 intrusion into potable groundwater. However, there are significant discrepancies between studies particularly concerning, what contaminants are of concern and the geochemical processes involved. These discrepancies reflected the lack of a consensus on CO2-induced changes in subsurface geochemical processes and subsequent effects on groundwater chemistry. The development of consistent experimental protocols and the identification of pertinent factors driving CO2-induced geochemical changes in the subsurface were identified as key research needs. Geochemical modeling was used to systematically highlight why a standardization of experimental protocols and the consideration of experimental factors such as gas leakage rates, redox status and the influence of co-transported gases are pertinent. The role of analog studies, reactions occurring in the vadose zone, and the influence of organic contaminants are also discussed.

Harvey, Omar R.; Qafoku, Nikolla; Cantrell, Kirk J.; Lee, Gie Hyeon; Amonette, James E.; Brown, Christopher F.

2013-01-01T23:59:59.000Z

195

Controlling Deformation in Elastic and Viscoelastic Beams Due to Temperature and Moisture Changes Using Piezoelectric Actuator  

E-Print Network (OSTI)

This thesis analyzes the implementation of surface bonded piezoelectric actuators to control or minimize the deformation in elastic or viscoelastic cantilever beams due to simultaneous heat and moisture diffusion. The problem is addressed in the context of linearized elasticity and linearized viscoelasticity. The constitutive equations are derived from the balance laws for mass, linear and angular momenta, energy, entropy and the second law of thermodynamics. The constitutive equations for linearized elasticity are then obtained as a consequence of small deformation assumption. The temperature and moisture induced deformation is introduced through the coefficient of thermal expansion CTE and coefficient of moisture expansion CME. The constitutive equations for linearized viscoelasticity are obtained by correspondence principle. The coupled temperature and moisture diffusion equations are obtained as a consequence of Clausius-Duhem inequality. The extent of coupling between heat conduction and moisture diffusion phenomena is studied by varying the ratio of their diffusivities and a non-dimensional coupling parameter. The effect of coupled unsteady heat conduction and moisture diffusion phenomena on the short and long term response characteristics of the beam such as displacement, stress and strain fields is studied. Based on these response characteristics, the magnitude of external actuating voltage required to minimize deformation is predicted. This is followed by a comparative study of the field variables in cases of actuated and unactuated beams. Four materials are chosen for this study; aluminium, epoxy, carbon fiber reinforced polymer with fiber volume fraction of 60 percent, and an epoxy-like viscoelastic material. The viscoelastic material is assumed to be thermorheologically simple. The shift factor is assumed to be a linear function of temperature and moisture fields. To address this problem numerically, a finite difference formulation is presented for the field equations and boundary conditions. This numerical scheme is validated by solving the problem of uniformly loaded cantilever beam and comparing the results with the analytical solution known a priori. The results obtained numerically are validated by comparison with experimental results. It is observed that the under the effect of external actuation, the stress and displacement fields are largely minimized in all four cases chosen for study. The bending in the unactuated viscoelastic beam is more pronounced than bending in the unactuated elastic beam. This is due to the softening of the material with time due to evolving temperature and moisture fields. However, relatively lesser external actuating voltage is necessary to minimize bending in the former case compared to the latter. The magnitude of actuating electric field required in the piezoelectric layer suggests a need to address the problem with in a non-linear framework, no such attempt is made in this study.

Kuravi, Ramachandra Srinivasa Chaitanya

2011-05-01T23:59:59.000Z

196

2005 NERSC User Survey Results  

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

5 User Survey Results 5 User Survey Results Show All | 1 2 3 4 5 ... 10 | Next » 2005 User Survey Results Table of Contents Response Summary Respondent Demographics All Satisfaction, Importance and Usefulness Ratings Hardware Resources Software Visualization and Data Analysis Services and Communications Web Interfaces Training Comments about NERSC Response Summary Many thanks to the 201 users who responded to this year's User Survey. The respondents represent all six DOE Science Offices and a variety of home institutions: see Respondent Demographics. The survey responses provide feedback about every aspect of NERSC's operation, help us judge the quality of our services, give DOE information on how well NERSC is doing, and point us to areas we can improve. The survey results are listed below.

197

Main Results of Grossversuch IV  

Science Conference Proceedings (OSTI)

The main results of a randomized hail suppression experiment, Grossversuch IV, are presented in this paper. Grossversuch IV tested the “Soviet” hail prevention method during five years (1977–81). The field experiment took place in central ...

B. Federer; A. Waldvogel; W. Schmid; H. H. Schiesser; F. Hampel; Marianne Schweingruber; W. Stahel; J. Bader; J. F. Mezeix; Nadie Doras; G. D'Aubigny; G. DerMegreditchian; D. Vento

1986-07-01T23:59:59.000Z

198

Results from NA61/SHINE  

E-Print Network (OSTI)

In this paper we summarize recent results from NA61/SHINE relevant for heavy ion physics, neutrino oscillations and the interpretation of air showers induced by ultra-high energy cosmic rays.

Unger, M

2013-01-01T23:59:59.000Z

199

Automatic categorization of query results  

Science Conference Proceedings (OSTI)

Exploratory ad-hoc queries could return too many answers - a phenomenon commonly referred to as "information overload". In this paper, we propose to automatically categorize the results of SQL queries to address this problem. We dynamically generate ...

Kaushik Chakrabarti; Surajit Chaudhuri; Seung-won Hwang

2004-06-01T23:59:59.000Z

200

DOE Patents Database - Search Results  

Office of Scientific and Technical Information (OSTI)

Results: Zero matches. Page 1 of 1 Show only () Items Clear all () Items Refine Search Patent Title Inventor(s) Issue Date Patent Number Full Text Top Return to Original...

Note: This page contains sample records for the topic "qualitative result due" 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

2000 NERSC User Survey Results  

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

0 User Survey Results 0 User Survey Results Show All | 1 2 3 4 5 ... 10 | Next » 2000 User Survey Results Table of Contents Response Summary User Information Overall Satisfaction and Importance All Satisfaction Questions and FY 1999 to FY 2000 Changes Consulting and Account Support Web and Communications Hardware Resources Software Resources Training User Comments Response Summary NERSC extends its thanks to all the users who participated in this year's survey. Your responses provide feedback about every aspect of NERSC's operation, help us judge the quality of our services, give DOE information on how well NERSC is doing, and point us to areas we can improve. Every year we institute changes based on the survey; the FY 1999 survey resulted in the following changes: We created a long-running queue (12 hours maximum) for jobs using up

202

COBE Tutorial and Recent Results  

E-Print Network (OSTI)

Some of the technical details involved in taking and analyzing data from COBE are discussed, and recent results from the FIRAS and DMR experiments are summarized. Some of the cosmological implications of these recent data are presented.

Edward L. Wright

1994-07-20T23:59:59.000Z

203

CHANGES IN EDGE AND SCRAPE-OFF LAYER PLASMA BEHAVIOE DUE TO VAARIATION IN MAGNETIC BALANCE IN DIII-D  

Science Conference Proceedings (OSTI)

Changes in the divertor magnetic balance in DIII-D H-mode plasmas affects core, edge, and divertor plasma behavior. Both the pedestal density n{sub e,PED} and plasma stored energy W{sub T} were sensitive to changes in magnetic balance near the double-null (DN) configuration, e.g., both decreased 20%-30% when the DN shifted to a slightly unbalanced DN, where the B x {del}B drift direction pointed away from the main X-point. Recycling at each of the four divertor targets was sensitive to changes in magnetic balance and the B x {del}B drift direction. The poloidal distribution of the recycling in DN is in qualitative agreement with the predictions of UEDGE modeling with particle drifts included. The particle flux at the inner divertor target is shown to be much more sensitive to magnetic balance than the particle flux at the outer divertor target near the DN shape. These results suggest possible advantages and drawbacks for balanced DN operation.

PETRIE, T.W.; WATKINS, J.G.; BAYLOR, L.R.; BROOKS, N.H.; FENSTERMACHER, M.E.; HYATT, A.W.; JACKSON, G.L.; LASNIER, C.J.; LEONARD, A.W.; PIGAROV, A.YU.; RENSINK, M.E.; ROGNLIEN, T.D.; SCHAFFER, M.J.; WOLF, N.S.; DIII-D TEAM

2002-06-01T23:59:59.000Z

204

ANALYSIS OF HIGH FIELD NON-LINEAR LOSSES ON SRF SURFACES DUE TO SPECIFIC TOPOGRAPHIC ROUGHNESS  

Science Conference Proceedings (OSTI)

The high-field performance of SRF cavities will eventually be limited by the realization of fundamental material limits, whether it is Hc1 or Hsh, or some derivative thereof, at which the superconductivity is lost. Before reaching this fundamental field limit at the macro level, it must be encountered at localized, perhaps microscopic, sites of field enhancement due to local topography. If such sites are small enough, they may produce thermally stabilized normal-conducting regions which contribute non-linear losses when viewed from the macro resonant field perspective, and thus produce degradation in Q0. We have undertaken a calculation of local surface magnetic field enhancement from specific fine topographic structure by conformal mapping method and numerically. A solution of the resulting normal conducting volume has been derived and the corresponding RF Ohmic loss simulated.

Chen Xu,Charles Reece,Michael Kelley

2012-07-01T23:59:59.000Z

205

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

206

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

207

Increased radiation dose at mammography due to prolonged exposure, delayed processing, and increased film darkening  

SciTech Connect

Four single-emulsion films introduced over the past 2 years--Du Pont Microvision, Fuji MiMa, Konica CM, and Eastman Kodak OM--were compared with Eastman Kodak OM SO-177 (Min-RE) film to evaluate their varying effects on mean glandular dose of reciprocity law failure due to prolonged exposure, delayed processing, and increased film darkening as a result of increased radiation exposure to improve penetration of glandular tissue. Exposures over 1.3 seconds led to increased radiation doses of 20%-30%. Delays in processing of 6 hours decreased processing speed by 11%-32% for all films except Du Pont Microvision. Optical density increases of 0.40 required 20%-30% more skin exposure for all five films. Optimal viewing densities were also evaluated and found to be different for each of the five films. Mammographers need to be aware of these differences in mammographic films to achieve maximum contrast at mammography.

Kimme-Smith, C.; Bassett, L.W.; Gold, R.H.; Chow, S. (UCLA Medical Center (USA))

1991-02-01T23:59:59.000Z

208

1999 NERSC User Survey Results  

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

9 User Survey Results 9 User Survey Results Show All | 1 2 3 4 5 ... 11 | Next » 1999 User Survey Results Table of Contents Respondent Summary Overall Satisfaction User Information Visualization Consulting and Account Support Information Technology and Communication Hardware Resources Software Training Comments about NERSC All Satisfaction Questions and FY 1998 to FY 1999 Changes Respondent Summary NERSC would like to thank all the users who participated in this year's survey. Your responses provide feedback about every aspect of NERSC's operation, help us judge the quality of our services, give DOE information on how well NERSC is doing, point us to areas we can improve, and show how we compare to similar facilities. This year 177 users responded to our survey, compared with 138 last year.

209

VEMAP 2: Selected Model Results  

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

Model Results Model Results The ORNL DAAC announces the release of two data sets from Phase 2 of the Vegetation/Ecosystem Modeling and Analysis Project (VEMAP). The two data sets contain monthly and annual results, respectively, from experiments conducted to compare the ecological responses of the suite of VEMAP models to projected transient scenarios of climate and atmospheric carbon dioxide for the period 1994 to 2100. The models investigated included five biogeochemical cycling models, which simulate plant production and nutrient cycles but rely on a static land-cover type, and two dynamic global vegetation models (DGVMs), which combine biogeochemical cycling processes with dynamic biogeographical processes including succession and fire simulation. VEMAP was an international project studying the response of biogeochemical

210

2001 NERSC User Survey Results  

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

1 User Survey Results 1 User Survey Results Show All | 1 2 3 4 5 ... 11 | Next » 2001 User Survey Results Table of Contents Response Summary User Information Overall Satisfaction and Importance All Satisfaction Questions and Changes from Previous Years NERSC Information Management (NIM) System Web and Communications Hardware Resources Software Training User Services Comments about NERSC Response Summary NERSC extends its thanks to the 237 users who participated in this year's survey; this compares with 134 respondents last year. The respondents represent all five DOE Science Offices and a variety of home institutions: see User Information. Your responses provide feedback about every aspect of NERSC's operation, help us judge the quality of our services, give DOE information on how well

211

2004 NERSC User Survey Results  

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

4 User Survey Results 4 User Survey Results Show All | 1 2 3 4 5 ... 13 | Next » 2004 User Survey Results Table of Contents Response Summary Respondent Demographics Overall Satisfaction and Importance All Satisfaction, Importance and Usefulness Ratings Hardware Resources Software Security and One Time Passwords Visualization and Data Analysis HPC Consulting Services and Communications Web Interfaces Training Comments about NERSC Response Summary Many thanks to the 209 users who responded to this year's User Survey. The respondents represent all six DOE Science Offices and a variety of home institutions: see Respondent Demographics. The survey responses provide feedback about every aspect of NERSC's operation, help us judge the quality of our services, give DOE information on how well NERSC is doing, and point us to areas we can improve. The

212

results | OpenEI Community  

Open Energy Info (EERE)

5 5 Varnish cache server Home Groups Community Central Green Button Applications Developer Utility Rate FRED: FRee Energy Database More Public Groups Private Groups Features Groups Blog posts Content Stream Documents Discussions Polls Q & A Events Notices My stuff Energy blogs 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142235135 Varnish cache server results Home Jweers's picture Submitted by Jweers(83) Contributor 16 May, 2013 - 14:22 Multicolor Maps from Compound Queries ask queries compound queries developer Google maps maps multicolor result formats results Semantic Mediawiki Hi all, Recently, a couple of people on OpenEI have asked me how to do compound (or multicolor) maps like this one: Syndicate content 429 Throttled (bot load)

213

2002 NERSC User Survey Results  

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

2 User Survey Results 2 User Survey Results Show All | 1 2 3 4 5 ... 11 | Next » 2002 User Survey Results Table of Contents Response Summary User Information Overall Satisfaction and Importance All Satisfaction Questions and Changes from Previous Years Visualization and Grid Computing Web, NIM, and Communications Hardware Resources Software Training User Services Comments about NERSC Response Summary Many thanks to the 300 users who responded to this year's User Survey -- this represents the highest response level in the five years we have conducted the survey. The respondents represent all five DOE Science Offices and a variety of home institutions: see User Information. You can see the FY 2002 User Survey text, in which users rated us on a 7-point satisfaction scale. Some areas were also rated on a 3-point

214

New Results on R Aquarii  

E-Print Network (OSTI)

The first results on new optical data for R Aquarii (based on observations obtained with the 2.5m INT, the 2.5m NOT and the 3.5m NTT) are presented. The morphology and kinematics of the nebula, based on data obtained with the NTT from 1991 to 2000, are discussed. Physical parameters of the outer nebula and the knotty jet are derived using spectra obtained with the INT in 2001. From the analysis of all these data we propose that the spectacular knotty inner structure of R Aqr could result from the interaction of a highly collimated pulsating young jet with the older hourglass inner nebula.

D. R. Goncalves; A. Mampaso; S. Navarro; R. M. L. Corradi

2003-12-22T23:59:59.000Z

215

Energy efficient residence: research results  

Science Conference Proceedings (OSTI)

This report on the design, construction, and monitoring of an energy efficient residence and a conventional comparison home by the National Association of Home Builders Research Foundation, Inc. The report describes the two homes in considerable detail, summarizes the results of the energy and other measurements, and evaluates many of the energy conservation techniques used. Finally, these results are synthesized with the foundation's other energy conservation experience into two lists of energy saving design tips for homes in both colder and warmer climates. Most of the design tips are accompanied by brief comments intended to aid in their interpretation and use.

Johnson, R.J.

1980-12-01T23:59:59.000Z

216

The Electrochemical Surface Potential Due to Classical Point Charge Models Drives Anion Adsorption to the Air-Water Interface  

E-Print Network (OSTI)

We demonstrate that the driving forces for ion adsorption to the air-water interface for point charge models results from both cavitation and a term that is of the form of a negative electrochemical surface potential. We carefully characterize the role of the free energy due to the electrochemical surface potential computed from simple empirical models and its role in ionic adsorption within the context of dielectric continuum theory. Our research suggests that the electrochemical surface potential due to point charge models provides anions with a significant driving force to the air-water interface. This is contrary to the results of ab initio simulations that indicate that the average electrostatic surface potential should favor the desorption of anions at the air-water interface. The results have profound implications for the studies of ionic distributions in the vicinity of hydrophobic surfaces and proteins.

Marcel D. Baer; Abraham C. Stern; Yan Levin; Douglas J. Tobias; Christopher J. Mundy

2013-07-05T23:59:59.000Z

217

Scale-Based Monotonicity Analysis in Qualitative Modelling with Flat Segments Martin Brooks1 and Yuhong Yan1 and Daniel Lemire2  

E-Print Network (OSTI)

qualitative models for complex real world engineering systems. Current research efforts are on automatic quantitative models in tasks such as Model-based Diagnosis (MBD), explaining system behavior, and designing novel devices from first principles. Monotonicity is an important feature to leverage when constructing

Yan, Yuhong

218

Vehicle Technologies Office: Fact #668: March 28, 2011 Time Wasted Due to  

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

8: March 28, 8: March 28, 2011 Time Wasted Due to Traffic Congestion to someone by E-mail Share Vehicle Technologies Office: Fact #668: March 28, 2011 Time Wasted Due to Traffic Congestion on Facebook Tweet about Vehicle Technologies Office: Fact #668: March 28, 2011 Time Wasted Due to Traffic Congestion on Twitter Bookmark Vehicle Technologies Office: Fact #668: March 28, 2011 Time Wasted Due to Traffic Congestion on Google Bookmark Vehicle Technologies Office: Fact #668: March 28, 2011 Time Wasted Due to Traffic Congestion on Delicious Rank Vehicle Technologies Office: Fact #668: March 28, 2011 Time Wasted Due to Traffic Congestion on Digg Find More places to share Vehicle Technologies Office: Fact #668: March 28, 2011 Time Wasted Due to Traffic Congestion on AddThis.com...

219

Core Measure Average KTR Results  

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

Measure Measure Average KTR Results FY 12 Target FY 12 DOE M&O CONTRACTOR (KTR) BSC RESULTS FY 2012 Customer Perspective and level of communication provided by the procurement office 95 92 Internal Business Perspective: Assessment (%) of the degree to which the purchasing system is in compliance with stakeholder requirements 97 Local Goals % Delivery on-time (includes JIT, excludes Purchase Cards) 88 84 % of total dollars obligated, on actions > $150K , that were awarded using effective competition 73 Local Goals Rapid Purchasing Techniques: -% of transactions placed by users 77 Local Goals -% of transactions placed through electronic commerce 62 Local Goals Average Cycle Time: -Average cycle time for <= $150K 8 6 to 9 days

220

DOE Patents Database - Search Results  

Office of Scientific and Technical Information (OSTI)

Issue Date between 07/06/2013 and 01/06/2014 Issue Date between 07/06/2013 and 01/06/2014 Sorted By: Issue Date, Descending Results: 1-25 of exactly 581 matches. Page 1 of 24 Next » Show only (√) Items Clear all (√) Items Refine Search Patent Title Inventor(s) Issue Date Patent Number Full Text A multiprocessor system supports multiple concurrent modes of speculative execution. Speculation identification numbers (IDs) are allocated to speculative threads from a pool of available numbers. The pool is divided into domains, with each domain being assigned to a mode of speculation. Modes of speculation include TM, TLS, and rollback. Allocation of the IDs is carried out with respect to a central state table and using hardware pointers. The IDs are used for writing different versions of speculative results in different ways of a set in a cache memory.

Note: This page contains sample records for the topic "qualitative result due" 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

Top Physics Results from CDF  

E-Print Network (OSTI)

The top quark is by far the most massive fundamental particle observed so far, and the study of its properties is interesting for several reasons ranging from its possible special role in electroweak symmetry breaking to its sensitivity to physics beyond the Standard Model. We present recent top physics results from CDF based on 160-320 inverse pb of ppbar collision data at a center-of-mass energy of 1.96 TeV. The ttbar cross section and the top mass have been measured in different decay channels and using different methods. We have searched for evidence of single top production, setting upper limits on its production rate. Other results shown in this conference include studies of the polarization of W bosons from top decays, a search for charged Higgs decaying from top, and a search for additional heavy t' quarks.

Gervasio Gomez

2005-05-30T23:59:59.000Z

222

ATLAS Status and latest results  

E-Print Network (OSTI)

The ATLAS experiment is a general-purpose detector located in one of the four interaction points of the Large Hadron Collider at CERN, Switzerland. In 2010 LHC has been colliding proton beams at the unprecedented centre-of-mass energy of 7 TeV. The last month of operation was dedicated to Pb-ion collisions at centre-of-mass energy of 2.76 TeV per nucleon. In this talk, a survey of the status of the ATLAS detector in both runs will be presented. The main results in pp collisions, including the study of minimum bias events, jets, W/Z, top and first searches for new physics will be reviewed. First results from heavy Ion collisions will be focussed on charged particle multiplicity, transverse energy, and elliptic flow as a function of collision geometry.

Sbarra, C; The ATLAS collaboration

2011-01-01T23:59:59.000Z

223

Heavy Flavour results from Tevatron  

SciTech Connect

The CDF and D0 experiments finalize the analysis of their full statistics collected in the p{bar p} collisions at a center-of-mass energy of {radical}s = 1.96 TeV at the Fermilab Tevatron collider. This paper presents several new results on the properties of hadrons containing heavy b- and c-quarks obtained by both collaborations. These results include the search for the rare decays B{sup 0}, B{sub s}{sup 0} {yields} {mu}{sup +}{mu}{sup -} (CDF), the study of CP asymmetry in B{sub s} {yields} J{psi}{phi} decay (CDF, D0), the measurement of the like-sign dimuon charge asymmetry (D0), the measurement of CP asymmetry in D{sup 0} {yields} K{sup +}K{sup -} and D{sup 0} {yields} {pi}{sup +}{pi}{sup -} decays (CDF), and the new measurement of the B{sub s} {yields} D{sub s}{sup (*)+} D{sub s}{sup (*)-} branching fraction (CDF). Both experiments still expect to produce more results on the properties of heavy flavours.

Borissov, G.; /Lancaster U.

2012-06-01T23:59:59.000Z

224

Qualitative reinforcement learning  

Science Conference Proceedings (OSTI)

When the transition probabilities and rewards of a Markov Decision Process are specified exactly, the problem can be solved without any interaction with the environment. When no such specification is available, the agent's only recourse is a long and ...

Arkady Epshteyn; Gerald DeJong

2006-06-01T23:59:59.000Z

225

Distribution Conductor Burndown Test Results  

Science Conference Proceedings (OSTI)

On overhead distribution circuits, conductor burndown is a well-documented phenomenon. Two systems are especially vulnerable to burndown: covered conductors (also known as tree wires or coated conductors) and small bare wires. In a burndown scenario, a power-follow arc develops on the system, with at least one end of the arc attached to a conductor. The arc heats the conductor, which causes the strands to anneal and lose tensile strength. The burndown event results in the strands breaking and the conduct...

2009-12-09T23:59:59.000Z

226

APS undulator radiation: First results  

Science Conference Proceedings (OSTI)

The first undulator radiation has been extracted from the Advanced Photon Source (APS). The results from the characterization of this radiation are very satisfactory. With the undulator set at a gap of 15.8 mm (K=1.61), harmonics as high as the 17th were observed using a crystal spectrometer. The angular distribution of the third-harmonic radiation was measured, and the source was imaged using a zone plate to determine the particle beam emittance. The horizontal beam emittance was found to be 6.9 {plus_minus} 1.0 nm-rad, and the vertical emittance coupling was found to be less than 3%. The absolute spectral flux was measured over a wide range of photon energies, and it agrees remarkably well with the theoretical calculations based on the measured undulator magnetic field profile and the measured beam emittance. These results indicate that both the emittance of the electron beam and the undulator magnetic field quality exceed the original specifications.

Cai, Z.; Dejus, R.J.; Hartog, P.D.

1995-12-31T23:59:59.000Z

227

Time-dependent 2-D modeling of edge plasma transport with high intermittency due to blobs  

SciTech Connect

The results on time-dependent 2-D fluid modeling of edge plasmas with non-diffusive intermittent transport across the magnetic field (termed cross-field) based on the novel macro-blob approach are presented. The capability of this approach to simulate the long temporal evolution ({approx}0.1 s) of the background plasma and simultaneously the fast spatiotemporal dynamics of blobs ({approx}10{sup -4} s) is demonstrated. An analysis of a periodic sequence of many macro-blobs (PSMB) is given showing that the resulting plasma attains a dynamic equilibrium. Plasma properties in the dynamic equilibrium are discussed. In PSMB modeling, the effect of macro-blob generation frequency on edge plasma parameters is studied. Comparison between PSMB modeling and experimental profile data is given. The calculations are performed for the same plasma discharge using two different models for anomalous cross-field transport: time-average convection and PSMB. Parametric analysis of edge plasma variation with transport coefficients in these models is presented. The capability of the models to accurately simulate enhanced transport due to blobs is compared. Impurity dynamics in edge plasma with macro-blobs is also studied showing strong impact of macro-blob on profiles of impurity charge states caused by enhanced outward transport of high-charge states and simultaneous inward transport of low-charge states towards the core. Macro-blobs cause enhancement of sputtering rates, increase radiation and impurity concentration in plasma, and change erosion/deposition patterns.

Pigarov, A. Yu.; Krasheninnikov, S. I. [University of California at San Diego, La Jolla, California 92093 (United States); Rognlien, T. D. [Lawrence Livermore National Laboratory, Livermore, California 94551 (United States)

2012-07-15T23:59:59.000Z

228

An opposite view data replacement approach for reducing artifacts due to metallic dental objects  

SciTech Connect

Purpose: To present a conceptually new method for metal artifact reduction (MAR) that can be used on patients with multiple objects within the scan plane that are also of small sized along the longitudinal (scanning) direction, such as dental fillings. Methods: The proposed algorithm, named opposite view replacement, achieves MAR by first detecting the projection data affected by metal objects and then replacing the affected projections by the corresponding opposite view projections, which are not affected by metal objects. The authors also applied a fading process to avoid producing any discontinuities in the boundary of the affected projection areas in the sinogram. A skull phantom with and without a variety of dental metal inserts was made to extract the performance metric of the algorithm. A head and neck case, typical of IMRT planning, was also tested. Results: The reconstructed CT images based on this new replacement scheme show a significant improvement in image quality for patients with metallic dental objects compared to the MAR algorithms based on the interpolation scheme. For the phantom, the authors showed that the artifact reduction algorithm can efficiently recover the CT numbers in the area next to the metallic objects. Conclusions: The authors presented a new and efficient method for artifact reduction due to multiple small metallic objects. The obtained results from phantoms and clinical cases fully validate the proposed approach.

Yazdi, Mehran; Lari, Meghdad Asadi; Bernier, Gaston; Beaulieu, Luc [Department of Electrical Engineering, School of Engineering, Shiraz University, Shiraz 7134851154 (Iran, Islamic Republic of) and Departement de Radio-Oncologie, Ho circumflex tel-Dieu de Quebec, Centre Hospitalier Universitaire de Quebec, 11 Cote du Palais, Quebec, Quebec G1R 2J6 (Canada); Department of Electrical Engineering, School of Engineering, Shiraz University, Shiraz 7134851154 (Iran, Islamic Republic of); Departement de Radio-Oncologie, Ho circumflex tel-Dieu de Quebec, Centre Hospitalier Universitaire de Quebec, 11 Cote du Palais, Quebec, Quebec G1R 2J6 (Canada); Departement de Physique, de Genie Physique et D'optique, Universite Laval, Quebec, Quebec (Canada) and Departement de Radio-Oncologie, Hotel-Dieu de Quebec, Centre Hospitalier Universitaire de Quebec, 11 Cote du Palais, Quebec, Quebec G1R 2J6 (Canada)

2011-04-15T23:59:59.000Z

229

Data Transfer Nodes Yield Results!  

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

DTN DTN Data Transfer Nodes Yield Results August 1, 2011 | Tags: Accelerator Science, Data Transfer, ESnet Linda Vu, +1 510 495 2402, lvu@lbl.gov The ability to reliably move and share data around the globe is essential to scientific collaboration, that's why three Department of Energy (DOE) Scientific Computing Centers-Argonne and Oak Ridge Leadership Computing Facilities, and the National Energy Research Scientific Computing Center (NERSC)-have teamed up to focus on optimizing wide area network (WAN) transfers. This ongoing effort began several years ago when each site deployed dedicated transfer nodes (DTNs), optimized for carrying data between the DOE facilities. Today, engineers from each site continue to meet regularly with DOE's Energy Sciences Network staff (ESnet) to develop strategies

230

Microsoft Word - S07076_Results  

Office of Legacy Management (LM)

Hydrologic and Hydrologic and Natural Gas Sampling and Analysis Results for 2010 December 2010 Approved for public release; further dissemination unlimited LMS/GSB/S07076 Available for sale to the public from: U.S. Department of Commerce National Technical Information Service 5301 Shawnee Road Alexandria, VA 22312 Telephone: 800.553.6847 Fax: 703.605.6900 E-mail: orders@ntis.gov Online Ordering: http://www.ntis.gov/help/ordermethods.aspx Available electronically at http://www.osti.gov/bridge Available for a processing fee to U.S. Department of Energy and its contractors, in paper, from: U.S. Department of Energy Office of Scientific and Technical Information P.O. Box 62 Oak Ridge, TN 37831-0062 Phone: 865.576.8401 Fax: 865.576.5728

231

Microsoft Word - S08153_Results  

Office of Legacy Management (LM)

Natural Gas and Produced Water Sampling and Analysis Results for 2011 September 2011 Approved for public release; further dissemination unlimited LMS/GSB/S08153 Available for sale to the public from: U.S. Department of Commerce National Technical Information Service 5301 Shawnee Road Alexandria, VA 22312 Telephone: 800.553.6847 Fax: 703.605.6900 E-mail: orders@ntis.gov Online Ordering: http://www.ntis.gov/help/ordermethods.aspx Available electronically at http://www.osti.gov/bridge Available for a processing fee to U.S. Department of Energy and its contractors, in paper, from: U.S. Department of Energy Office of Scientific and Technical Information P.O. Box 62 Oak Ridge, TN 37831-0062 Phone: 865.576.8401 Fax: 865.576.5728

232

New Results on Solar Neutrinos  

E-Print Network (OSTI)

This paper reviews the constraints on the solar neutrino mixing parameters with data collected by the Homestake, SAGE, GALLEX, Kamiokande, SuperKamiokande, Borexino and SNO experiments. An emphasis will be given to the global solar neutrino analyses in terms of matter-enhanced oscillation of two and three active flavors. The results to-date, including both solar model dependent and independent measurements, indicate that electron neutrinos are changing to other active types on route to the Earth from the Sun. The total flux of solar neutrinos is found to be in very good agreement with solar model calculations. Today, solar neutrino measurements focus on greater accuracy for mixing parameters and on better sensitivity to low neutrino energies. This article also summarizes near future prospects in the field of solar neutrino physics.

Alain Bellerive

2010-12-11T23:59:59.000Z

233

MITG test procedure and results  

DOE Green Energy (OSTI)

Elements and modules for Radioisotope Thermoelectric Generator have been performance tested since the inception of the RTG program. These test articles seldom resembled flight hardware and often lacked adequate diagnostic instrumentation. Because of this, performance problems were not identified in the early stage of program development. The lack of test data in an unexpected area often hampered the development of a problem solution. A procedure for conducting the MITG Test was developed in an effort to obtain data in a systematic, unambiguous manner. This procedure required the development of extensive data acquisition software and test automation. The development of a facility to implement the test procedure, the facility hardware and software requirements, and the results of the MITG testing are the subject of this paper.

Eck, M.B.; Mukunda, M.

1983-01-01T23:59:59.000Z

234

New Results on Solar Neutrinos  

E-Print Network (OSTI)

This paper reviews the constraints on the solar neutrino mixing parameters with data collected by the Homestake, SAGE, GALLEX, Kamiokande, SuperKamiokande, Borexino and SNO experiments. An emphasis will be given to the global solar neutrino analyses in terms of matter-enhanced oscillation of two and three active flavors. The results to-date, including both solar model dependent and independent measurements, indicate that electron neutrinos are changing to other active types on route to the Earth from the Sun. The total flux of solar neutrinos is found to be in very good agreement with solar model calculations. Today, solar neutrino measurements focus on greater accuracy for mixing parameters and on better sensitivity to low neutrino energies. This article also summarizes near future prospects in the field of solar neutrino physics.

Bellerive, Alain

2010-01-01T23:59:59.000Z

235

Energy Monitoring - Objectives vs Results  

E-Print Network (OSTI)

Universities, hospitals and similar institutions as well as manufacturers and plants have implemented programs of utility submetering. Submetering of utilities is defined as the measurement of energy at or near the point of use as opposed to gross measurement of energy coming into a building or facility. Without exception, the results achieved have met or exceeded expectations. Most of the programs are continuing in an expanding mode. Results of improvements to the utility distribution system can be measured in reduced usage and improved efficiency after submetering is in place. Networking of this monitoring system further enhances information collection and analysis. When other factors such as outside temperature and time of day are included in the data base, an emerging picture of energy usage for an entire facility is developed. A summary of highlights from several of these programs will be discussed in terms of what has been and is being accomplished. The importance of the commitment of both management and technologists/operators becomes evident as the initial objectives are achieved and expanded to match the innovation and skills of these professionals. The programs highlighted represent a group of progressive companies and institutions which have joined a "savings club." We are familiar with the savings clubs based on the investment of capital, depending strictly on interest to generate funds for us. The kind of savings clubs to be discussed in this paper joins capital with the more important human element to generate significant savings in deferred energy expenses. Steps necessary to "join the club" are listed and the ingredients of commitment and planning are discussed.

McEver, R. M.

1985-01-01T23:59:59.000Z

236

Argonne TTRDC - Green Racing - Results  

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

Results and Recaps Results and Recaps Green Racing Initiative - 2011 Season The Green Racing Initiative, managed by Argonne for the U.S. Department of Energy (DOE), has become an integral part of the American Le Mans Series (ALMS). The 2011 season continued the growth and acceptance of green racing activities in the Series. In August 2011, ALMS announced that it would implement Green Racing 2.0 in future races. Renewable Fuel Use The 2011 ALMS season saw the use of non-petroleum and renewable fuels become dominant. Every Green Challenge victory in the Gran Turismo (GT) category and five out of nine victories in the Le Mans Prototype (LMP) category were won by a car using advanced fuels. Underlining the significance of this movement to advanced renewable fuels is that teams and engineers from all over the world made the decision to switch to these fuels because of their performance advantages alone. There were no incentives for switching in the form of funding or extra points. ALMS goes to great lengths to balance the performance of all the cars, so the switch to these fuels was made solely because they offered better efficiency and, in some cases, more power. The Green Challenge scoring system, developed by Argonne engineers in cooperation with the ALMS, accurately reflects renewable fuels' characteristics in terms of its greenhouse gas and oil replacement attributes without rewarding their selection of these over conventional fuels. That is what makes this switch to renewable replacements for conventional oil-based fuels all the more significant.

237

Wear of Zircaloy-4 Grid Straps Due to Fretting and Periodic Impact ...  

Science Conference Proceedings (OSTI)

Presentation Title, Wear of Zircaloy-4 Grid Straps Due to Fretting and Periodic ... Applicability of Lean Grade of Duplex Stainless Steels in Nuclear Power Plants.

238

TurningPoint Evaluation Results  

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

Results of the Knoxville 2012 Meeting Evaluation 15 22.06% 5 7.35% 36 52.94% 0 0% 3 4.41% 6 8.82% 3 4.41% Totals 68 100% 25 17.86% 38 27.14% 38 27.14% 38 27.14% 1 0.71% Totals 140 100% 35 47.30% 36 48.65% 2 2.70% 1 1.35% Totals 74 100% 1.) Please indicate what type of agency or company you represent. Responses Federal 2.) Which breakout sessions did you attend? Responses NRC: Storage and disposal topics NRC: Rulemakings and studies Emerging technologies for HAZMAT shipments Harmonization, DOE directives, TEPP activitie... Tribal State executive State legislature Local Private Other Didn't attend None 3.) Keynote Address: DOE Office of Environmental Management Responses Very Somewhat Not useful 22.1% 7.4% 52.9% 0% 4.4% 8.8% 4.4% Federal Tribal State executive State legislature Local

239

Majorana Thermosyphon Prototype Experimental Results  

SciTech Connect

Objective The Majorana demonstrator will operate at liquid Nitrogen temperatures to ensure optimal spectrometric performance of its High Purity Germanium (HPGe) detector modules. In order to transfer the heat load of the detector module, the Majorana demonstrator requires a cooling system that will maintain a stable liquid nitrogen temperature. This cooling system is required to transport the heat from the detector chamber outside the shield. One approach is to use the two phase liquid-gas equilibrium to ensure constant temperature. This cooling technique is used in a thermosyphon. The thermosyphon can be designed so the vaporization/condensing process transfers heat through the shield while maintaining a stable operating temperature. A prototype of such system has been built at PNNL. This document presents the experimental results of the prototype and evaluates the heat transfer performance of the system. The cool down time, temperature gradient in the thermosyphon, and heat transfer analysis are studied in this document with different heat load applied to the prototype.

Fast, James E.; Reid, Douglas J.; Aguayo Navarrete, Estanislao

2010-12-17T23:59:59.000Z

240

Overview of the recent results from CLAS  

Science Conference Proceedings (OSTI)

An overview of the recent results obtained at the Thomas Jefferson Laboratory on the study of the nucleon internal structure is presented, with main focus on the CLAS measurements of the Transverse Momentum Dependent partonic functions. The JLab with its CEBAF accelerator and the three experimentals halls is a Laboratory dedicated to the study of the hadronic physics with electromagnetic probes in a large variety of aspects. The physics program extends from typical nuclear effects like long range correlations in nuclei to the study of the short distance vacuum structure in parity violating experiments. In recent years, a big part of the physics program was devoted to the study of the Transverse Momentum Dependent distribution functions, new functions introduced to describe the internal structure of the nucleon. Studies of TMDs at JLab and in other laboratories have shown sizeable effects due to transverse motion of the quarks inside the nucleon, but also have open questions. These questions need to be addressed in a new generation of experiments, poviding higher precisions experimental data, and with new analysis techniques, necessary to unfold fundamental properties from the measured obsevables.

Marco Mirazita

2012-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "qualitative result due" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
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241

Single-machine batch delivery scheduling with an assignable common due date and controllable processing times  

Science Conference Proceedings (OSTI)

We consider single-machine batch delivery scheduling with an assignable common due date and controllable processing times, which vary as a convex function of the amounts of a continuously divisible common resource allocated to individual jobs. Finished ... Keywords: Batch delivery, Common due date, Resource allocation, Scheduling

Yunqiang Yin, T. C. E. Cheng, Shuenn-Ren Cheng, Chin-Chia Wu

2013-08-01T23:59:59.000Z

242

Final Technical Report: Results of Phase 1  

SciTech Connect

Arizona Public Service Company (APS) expects that by 2027, renewable energy will account for 6,590 GWh in energy consumption by its customers. While much of this future energy will come from large centrally-located power plants, distributed renewable energy, sited at the point of end-use will also play an important role in meeting the needs of APS� customers and is expected to provide 1,734 GWh. With increasing penetration of residential and commercial photovoltaic (PV) systems at the point of end-use, PV power generation not only offsets the load, but could also cause significant shifts in power flow patterns through the distribution system, and could possibly cause reversal of flow through some branches of a distribution circuit. Significant changes to power flow introduced into existing distribution systems due to the increased amount of PV systems may cause operational issues, including over-voltage on the distribution feeder (loss of voltage regulation) and incorrect operation of control equipment, which may lead to an increase in the number of operations and related equipment wear that could affect equipment reliability and customer power quality. Additionally, connecting generation resources to a distribution feeder can introduce additional sources of short-circuit current to the distribution system. This could potentially result in increased short-circuit currents, potentially reaching damaging levels, causing protection desensitization and a potential loss of protection coordination. These effects may be further compounded by variability of PV production due to shading by clouds. The effects of these phenomena in distributed PV applications are not well understood, and there is a great need to characterize this variability. This project will contribute to understanding the effects of high-penetration solar electricity on the design and operation of distribution systems by demonstrating how a high penetration of PV systems affects grid operations of a working, utility distribution feeder. To address the technical challenges related to the integration of distributed PV when PV penetration levels reach or exceed 30% of the total load, technologies and methods to ensure the stable and safe operation of the feeder will be evaluated. Lessons learned will enable APS to improve the framework for future PV integration on its system and may also aid other utilities across the United States energy sector in accelerating the adoption of distributed photovoltaic generation.

Narang, David, J.; Hambrick, Joshua; Srinivasan, Devarajan; Ayyannar, Raja; O'Brien, Kathleen

2011-09-28T23:59:59.000Z

243

Final Technical Report: Results of Phase 1  

DOE Green Energy (OSTI)

Arizona Public Service Company (APS) expects that by 2027, renewable energy will account for 6,590 GWh in energy consumption by its customers. While much of this future energy will come from large centrally-located power plants, distributed renewable energy, sited at the point of end-use will also play an important role in meeting the needs of APS customers and is expected to provide 1,734 GWh. With increasing penetration of residential and commercial photovoltaic (PV) systems at the point of end-use, PV power generation not only offsets the load, but could also cause significant shifts in power flow patterns through the distribution system, and could possibly cause reversal of flow through some branches of a distribution circuit. Significant changes to power flow introduced into existing distribution systems due to the increased amount of PV systems may cause operational issues, including over-voltage on the distribution feeder (loss of voltage regulation) and incorrect operation of control equipment, which may lead to an increase in the number of operations and related equipment wear that could affect equipment reliability and customer power quality. Additionally, connecting generation resources to a distribution feeder can introduce additional sources of short-circuit current to the distribution system. This could potentially result in increased short-circuit currents, potentially reaching damaging levels, causing protection desensitization and a potential loss of protection coordination. These effects may be further compounded by variability of PV production due to shading by clouds. The effects of these phenomena in distributed PV applications are not well understood, and there is a great need to characterize this variability. This project will contribute to understanding the effects of high-penetration solar electricity on the design and operation of distribution systems by demonstrating how a high penetration of PV systems affects grid operations of a working, utility distribution feeder. To address the technical challenges related to the integration of distributed PV when PV penetration levels reach or exceed 30% of the total load, technologies and methods to ensure the stable and safe operation of the feeder will be evaluated. Lessons learned will enable APS to improve the framework for future PV integration on its system and may also aid other utilities across the United States energy sector in accelerating the adoption of distributed photovoltaic generation.

Narang, David, J.; Hambrick, Joshua; Srinivasan, Devarajan; Ayyannar, Raja; O'Brien, Kathleen; Bebic, Jovan; Schelenz, Owen

2011-09-28T23:59:59.000Z

244

Suppression of stimulated Raman scattering due to localization of electron plasma wave in laser beam filaments  

Science Conference Proceedings (OSTI)

The filamentation of the high power laser beam by taking off-axial contribution is investigated when ponderomotive nonlinearity is taken into account. The splitted profile of the laser beam is obtained due to uneven focusing of the off-axial rays. It is observed that the weak electron plasma wave (EPW) propagating in the z direction is nonlinearly coupled in the modified filamentary regions of the laser beam. The semianalytical solution of the nonlinear coupled EPW equation in the presence of laser beam filaments has been found and it is observed that the nonlinear coupling between these two waves leads to localization of the EPW. Stimulated Raman scattering (SRS) of this EPW is studied and backreflectivity has been calculated. Further, the localization of EPW affects the eigenfrequency and damping of plasma wave. As a result of this, mismatch and modified enhanced Landau damping lead to the disruption of SRS process and a substantial reduction in the backreflectivity. For the typical laser beam and plasma parameters with wavelength ({lambda}=1064 nm), power flux ({approx_equal}10{sup 16} W cm{sup -2}), and plasma density (n/n{sub cr})=0.2; the backreflectivity was found to be suppressed by a factor of around 20%.

Sharma, Prerana; Sharma, R. P. [Centre for Energy Studies, Indian Institute of Technology, New Delhi 110016 (India)

2009-03-15T23:59:59.000Z

245

Stochastic Force Due to a Quantum Scalar Field in Minkowski Spacetime  

E-Print Network (OSTI)

A method is presented for computing approximate expressions for the stochastic force term $\\xi_{ab}$ which appears in the Einstein-Langevin equation of stochastic gravity. Within this framework, $\\xi_{ab}$ is a stochastic tensor field whose probability distribution mimics the probability distribution of the fluctuations of the quantum stress tensor operator; it is defined to be a random tensor field of zero mean whose correlation function is given by the expectation value of the symmetrized two point function of the stress energy fluctuation operator, called the noise kernel. Approximate expressions are obtained by means of a truncated Karhunen-Loeve transform defined on a random lattice of spacetime points. Due to the singular nature of the noise kernel, a coarse graining procedure is used to regulate divergences; as a result, the expressions obtained for $\\xi_{ab}$ approximate values which might be seen by a probe measuring fluctuations in the stress energy using a sampling profile of finite width. Two realizations of $\\xi_{ab}$ in Minkowski spacetime for the conformally invariant quantum scalar field in the Minkowski vacuum state are presented.

Jason D. Bates

2013-03-07T23:59:59.000Z

246

Heating of near-Earth objects and meteoroids due to close approaches to the Sun  

E-Print Network (OSTI)

It is known that near-Earth objects (NEOs) during their orbital evolution may often undergo close approaches to the Sun. Indeed it is estimated that up to ~70% of them end their orbital evolution colliding with the Sun. Starting from the present orbital properties, it is possible to compute the most likely past evolution for every NEO, and to trace its distance from the Sun. We find that a large fraction of the population may have experienced in the past frequent close approaches, and thus, as a consequence, a considerable Sun-driven heating, not trivially correlated to the present orbits. The detailed dynamical behaviour, the rotational and the thermal properties of NEOs determine the exact amount of the resulting heating due to the Sun. In the present paper we discuss the general features of the process, providing estimates of the surface temperature reached by NEOs during their evolution. Moreover, we investigate the effects of this process on meteor-size bodies, analyzing possible differences with the NEO...

Marchi, S; Morbidelli, A; Paolicchi, P; Lazzarin, M

2009-01-01T23:59:59.000Z

247

EVALUATION OF RADIONUCLIDE ACCUMULATION IN SOIL DUE TO LONG-TERM IRRIGATION  

Science Conference Proceedings (OSTI)

Radionuclide accumulation in soil due to long-term irrigation is an important part of the model for predicting radiation dose in a long period of time. The model usually assumes an equilibrium condition in soil with a constant irrigation rate, so that radionuclide concentration in soil does not change with time and can be analytically solved. This method is currently being used for the dose assessment in the Yucca Mountain project, which requires evaluating radiation dose for a period of 10,000 years. There are several issues associated with the method: (1) time required for the equilibrium condition, (2) validity of constant irrigation rate, (3) agricultural land use for a long period of time, and (4) variation of a radionuclide concentration in water. These issues are evaluated using a numerical method with a simple model built in the GoldSim software. Some key radionuclides, Tc-99, Np-237, Pu-239, and Am-241 are selected as representative radionuclides. The results indicate that the equilibrium model is acceptable except for a radionuclide that requires long time to accumulate in soil and that its concentration in water changes dramatically with time (i.e. a sharp peak). Then the calculated dose for that radionuclide could be overestimated using the current equilibrium method.

De Wesley Wu

2006-04-16T23:59:59.000Z

248

Underground Infrastructure Impacts Due to a Surface Burst Nuclear Device in an Urban Canyon Environment  

SciTech Connect

Investigation of the effects of a nuclear device exploded in a urban environment such as the Chicago studied for this particular report have shown the importance on the effects from the urban canyons so typical of today's urban environment as compared to nuclear test event effects observed at the Nevada Test Site (NTS) and the Pacific Testing Area on which many of the typical legacy empirical codes are based on. This report first looks at the some of the data from nuclear testing that can give an indication of the damage levels that might be experienced due to a nuclear event. While it is well known that a above ground blast, even a ground burst, very poorly transmits energy into the ground ( < 1%) and the experimental results discussed here are for fully coupled detonations, these results do indicate a useful measure of the damage that might be expected. The second part of the report looks at effects of layering of different materials that typically would make up the near ground below surface environment that a shock would propagate through. As these simulations support and is widely known in the community, the effects of different material compositions in these layers modify the shock behavior and especially modify the energy dispersal and coupling into the basement structures. The third part of the report looks at the modification of the underground shock effects from a surface burst 1 KT device due to the presence of basements under the Chicago buildings. Without direct knowledge of the basement structure, a simulated footprint of a uniform 20m depth was assumed underneath each of the NGI defined buildings in the above ground environment. In the above ground case, the underground basement structures channel the energy along the line of site streets keeping the shock levels from falling off as rapidly as has been observed in unobstructed detonations. These simulations indicate a falloff of factors of 2 per scaled length as compared to 10 for the unobstructed case. Again, as in the above ground case, the basements create significant shielding causing the shock profile to become more square and reducing the potential for damage diagonal to the line of sight streets. The results for a 1KT device is that the heavily damaged zone (complete destruction) will extend out to 50m from the detonation ({approx}100m for 10KT). The heavily to moderately damaged zone will extend out to 100m ({approx}200m for 10KT). Since the destruction will depend on geometric angle from the detonation and also the variability of response for various critical infrastructure, for planning purposes the area out to 100m from the detonation should be assumed to be non-operational. Specifically for subway tunnels, while not operational, they could be human passable for human egress in the moderately damaged area. The results of the simulations presented in this report indicate only the general underground infrastructure impact. Simulations done with the actual basement geometry would be an important improvement. Equally as important or even more so, knowing the actual underground material configurations and material composition would be critical information to refine the calculations. Coupling of the shock data into structural codes would help inform the emergency planning and first response communities on the impact to underground structures and the state of buildings after the detonation.

Bos, Randall J. [Los Alamos National Laboratory; Dey, Thomas N. [Los Alamos National Laboratory; Runnels, Scott R. [Los Alamos National Laboratory

2012-07-03T23:59:59.000Z

249

A qualitative analysis of writing as a focus for developing policy statements on public issues in large petrochemical companies  

E-Print Network (OSTI)

Research by Linda Flower, Ann Berthoff, James Stephens, Judith Langer, Arthur Applebee, and other social scientists supports the notion that writing helps individuals shape their ideas. I believe it serves the same function in developing policy in large corporations. For the people responsible for producing speeches and brochures that relate to issues of public concern, writing is more than an exercise in stating the corporate line in acceptable prose. For them, the written word is the focal point for examining a company's position. The act of writing puts ideas on the table for everyone to see. From there, the give-and-take between management and writers often becomes the choice of one word over another, because the final version of that text will be seen by the public as the company's official position. Those speeches and articles may be used for years by reporters, lawmakers, environmentalists, and citizens seeking to comment on the company's actions. This does not mean that writers and editors direct big companies. They are, however, an important part of a process that is often misunderstood, even by those who participate in it. There is a cost for that misunderstanding. Young writers often say in frustration, "My client doesn't know what he wants!" That, however, is just the point. Clients may not know what they want to say, and it is the writer's job to help them find out. Understanding the process will assist writers and clients alike to realize that the process of writing a position helps to form it. In large corporations, company policy is often shaped in the process. This paper is a qualitative analysis of the role of speeches and publications in developing corporate policy. It suggests that writing about issues of public concern can become the focal point for shaping corporate policy. The study is based on interviews with free-lance writers, and with writers, editors, managers, and executives of several major corporations, primarily in energy-related fields. Conclusions are based on what these individuals have said about their experience.

Cunningham, Richard Lee

2002-01-01T23:59:59.000Z

250

Lipid Oxidation PathwaysChapter 9 Protein Alterations Due to Lipid Oxidation in Multiphase Systems  

Science Conference Proceedings (OSTI)

Lipid Oxidation Pathways Chapter 9 Protein Alterations Due to Lipid Oxidation in Multiphase Systems Health Nutrition Biochemistry eChapters Health - Nutrition - Biochemistry Press Downloadable pdf of Chapter 9 P

251

CMB temperature anisotropy from broken spatial isotropy due to a homogeneous cosmological magnetic field  

Science Conference Proceedings (OSTI)

We derive the cosmic microwave background temperature anisotropy two-point correlation function (including off-diagonal correlations) from broken spatial isotropy due to an arbitrarily oriented homogeneous cosmological magnetic field.

Kahniashvili, Tina [Department of Physics, Kansas State University, 116 Cardwell Hall, Manhattan, Kansas 66506 (United States); Department of Physics, Laurentian University, Ramsey Lake Road, Sudbury, ON P3E 2C6 (Canada); National Abastumani Astrophysical Observatory, 2A Kazbegi Ave, Tbilisi, GE-0160 (Georgia); Lavrelashvili, George [Department of Theoretical Physics, A. Razmadze Mathematical Institute, 1 M. Aleksidze, Tbilisi, GE-0193 (Georgia); Ratra, Bharat [Department of Physics, Kansas State University, 116 Cardwell Hall, Manhattan, Kansas 66506 (United States)

2008-09-15T23:59:59.000Z

252

Spectral Distribution of Energy Dissipation of Wind-Generated Waves due to Dominant Wave Breaking  

Science Conference Proceedings (OSTI)

This paper considers an experimental attempt to estimate the spectral distribution of the dissipation due to breaking of dominant waves. A field wave record with an approximately 50% dominant-breaking rate was analyzed. Segments of the record, ...

Ian R. Young; Alexander V. Babanin

2006-03-01T23:59:59.000Z

253

A Simplified Scheme to Simulate Asymmetries Due to the Beta Effect in Barotropic Vortices  

Science Conference Proceedings (OSTI)

A simplified scheme to generate vortex asymmetries due to the beta effect from an initially symmetric vortex on a beta plane is described. This approach, based on the time integration of the nondivergent barotropic vorticity equation, was ...

Rebecca J. Ross; Yoshio Kurihara

1992-09-01T23:59:59.000Z

254

Estimation of economic impact of freight distribution due to highway closure  

E-Print Network (OSTI)

The main aim of this study is to provide a theoretical framework and methodology to estimate and analyze the economic impact of freight disruption due to highway closure. The costs in this study will be classified into ...

Hu, Shiyin

2008-01-01T23:59:59.000Z

255

A Spectral Parameterization of Mean-Flow Forcing due to Breaking Gravity Waves  

Science Conference Proceedings (OSTI)

A spectral parameterization of mean-flow forcing due to breaking gravity waves is described for application in the equations of motion in atmospheric models. The parameterization is based on linear theory and adheres closely to fundamental ...

M. J. Alexander; T. J. Dunkerton

1999-12-01T23:59:59.000Z

256

Stratospheric Ozone Decrease Due to Chlorofluoromethane Photolysis: Predictions of Latitude Dependence  

Science Conference Proceedings (OSTI)

A two-dimensional model is used to predict the 1990 reduction in ozone due to the chlorine compounds formed by chlorofluoromethane (CFM) photolysis when the CFM release rate is held constant at the 1975 value. The predicted globally averaged ...

W. J. Borucki; R. C. Whitten; H. T. Woodward; L. A. Capone; C. A. Riegel; S. Gaines

1980-03-01T23:59:59.000Z

257

Low Dose Radiation Research Program: The Risk of Cancer Induction Due to  

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

November 10-12, 1999, Washington, D.C. November 10-12, 1999, Washington, D.C. The Risk of Cancer Induction Due to Routine Mammographic Screening Featured Project Description David J. Brenner, Steve Marino, and Charles Geard, Center for Radiological Research, Columbia University, 630 West 168th Street, New York Summary: To obtain realistic and credible risk estimates for breast-cancer mortality due to clinical mammographic imaging examinations. Abstract: The aim of this work is to obtain realistic and credible risk estimates for breast-cancer mortality due to clinical mammographic imaging examinations. Given the increasing emphasis on clinical mammographic screening for breast cancer, it is of societal importance to provide realistic risk estimates with realistic confidence bounds for breast cancer

258

Hanford to Host ISMS Safety Workshop in Kennewick: Abstracts Due in June  

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

Hanford to Host ISMS Safety Workshop in Kennewick: Abstracts Due in Hanford to Host ISMS Safety Workshop in Kennewick: Abstracts Due in June for September Event Hanford to Host ISMS Safety Workshop in Kennewick: Abstracts Due in June for September Event May 18, 2011 - 12:00pm Addthis Media Contact Cameron Hardy, DOE (509) 376-5365 Cameron.Hardy@rl.doe.gov RICHLAND, WASH. - The U.S. Department of Energy (DOE) at Hanford will hold its annual DOE Integrated Safety Management (ISM) Champions Workshop on September 12-15, 2011, at the Three Rivers Convention Center in Kennewick, Wash. DOE's Richland Operations Office and Office of River Protection are hosting this year's event. The purpose of the workshop is to promote a robust safety culture and educate attendees on safety developments and environmental compliance methods for effective implementation of the

259

Nonlinear response of vessel walls due to short-time thermomechanical loading  

Science Conference Proceedings (OSTI)

Maintaining structural integrity of the reactor pressure vessel (RPV) during a postulated core melt accident is an important safety consideration in the design of the vessel. This study addresses the failure predictions of the vessel due to thermal and pressure loadings fro the molten core debris depositing on the lower head of the vessel. Different loading combinations were considered based on the dead load, yield stress assumptions, material response and internal pressurization. The analyses considered only short term failure (quasi static) modes, long term failure modes were not considered. Short term failure modes include plastic instabilities of the structure and failure due to exceeding the failure strain. Long term failure odes would be caused by creep rupture that leads to plastic instability of the structure. Due to the sort time durations analyzed, creep was not considered in the analyses presented.

Pfeiffer, P.A.; Kulak, R.F.

1994-06-01T23:59:59.000Z

260

Residual stress relief due to fatigue in tetragonal lead zirconate titanate ceramics  

SciTech Connect

High energy synchrotron XRD was employed to determine the lattice strain {epsilon}{l_brace}111{r_brace}and diffraction peak intensity ratio R{l_brace}200{r_brace}in tetragonal PZT ceramics, both in the virgin poled state and after a bipolar fatigue experiment. It was shown that the occurrence of microstructural damage during fatigue was accompanied by a reduction in the gradient of the {epsilon}{l_brace}111{r_brace}-cos{sup 2} {psi} plot, indicating a reduction in the level of residual stress due to poling. In contrast, the fraction of oriented 90 Degree-Sign ferroelectric domains, quantified in terms of R{l_brace}200{r_brace}, was not affected significantly by fatigue. The change in residual stress due to fatigue is interpreted in terms of a change in the average elastic stiffness of the polycrystalline matrix due to the presence of inter-granular microcracks.

Hall, D. A.; Mori, T. [School of Materials, University of Manchester, Grosvenor St., Manchester M1 7HS (United Kingdom); Comyn, T. P. [Institute for Materials Research, Woodhouse Lane, University of Leeds, LS2 9JT (United Kingdom); Ringgaard, E. [Meggitt Sensing Systems, Hejreskovvej 18A, 3490 Kvistgaard (Denmark); Wright, J. P. [ESRF, 6 Rue Jules Horowitz, BP-220, 38043 Grenoble Cedex (France)

2013-07-14T23:59:59.000Z

Note: This page contains sample records for the topic "qualitative result due" 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

Climate VISION: Private Sector Initiatives: Cement - Results  

Office of Scientific and Technical Information (OSTI)

State Programs Technical Information Plant Assessments Training Calendar Software Tools Energy Management Results Technology Pathways Cement - Results No measured results exist...

262

Climate VISION: Private Sector Initiatives: Mining: Results  

Office of Scientific and Technical Information (OSTI)

State Programs Technical Information Plant Assessments Training Calendar Software Tools Energy Management Results Mining - Results No measured results exist at this time in terms...

263

Biodiesel Co-Firing--Field Demonstration Results  

Science Conference Proceedings (OSTI)

Biodiesel is a renewable fuel produced through the transesterification process. The fuel is typically produced from soybean oil and is used in diesel engines as a diesel alternative/supplement. Due to potential emission and greenhouse gas benefits, New York Power Authority (NYPA) and EPRI conducted full-scale tests of biodiesel / 6 oil blends at NYPA's Charles Poletti Station, Unit 6 boiler.

2007-04-06T23:59:59.000Z

264

Beyond the Price Effect in Time-of-Use Programs: Results from...  

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

Beyond the Price Effect in Time-of-Use Programs: Results from a Municipal Utility Pilot, 2007-2008 NOTICE Due to the current lapse of federal funding, Berkeley Lab websites are...

265

RECONSTRUCTION OF INDIVIDUAL DOSES DUE TO MEDICAL EXPOSURES FOR MEMBERS OF THE TECHA RIVER COHORT  

Science Conference Proceedings (OSTI)

Purpose: To describe a methodology for reconstruction of doses due to medical exposures for members of the Techa River Cohort (TRC) who received diagnostic radiation at the clinic of the Urals Research Center for Radiation Medicine (URCRM) in 1952–2005. To calculate doses of medical exposure for the TRC members and compare with the doses that resulted from radioactive contamination of the Techa River. Material and Methods: Reconstruction of individual medical doses is based on data on x-ray diagnostic procedures available for each person examined at the URCRM clinics and values of absorbed dose in 12 organs per typical x-ray procedure calculated with the use of a mathematical phantom. Personal data on x-ray diagnostic examinations have been complied in the computerized “Registry of x-ray diagnostic procedures.” Sources of information are archival registry books from the URCRM x-ray room (available since 1956) and records on x-ray diagnostic procedures in patient-case histories (since 1952). The absorbed doses for 12 organs of interest have been evaluated per unit typical x-ray procedure with account taken of the x-ray examination parameters characteristic for the diagnostic machines used at the URCRM clinics. These parameters have been evaluated from published data on technical characteristics of the x-ray diagnostic machines used at the URCRM clinics in 1952–1988 and taken from the x-ray room for machines used at the URCRM in 1989–2005. Absorbed doses in the 12 organs per unit typical x-ray procedure have been calculated with use of a special computer code, EDEREX, developed at the Saint-Petersburg Research Institute of Radiation Hygiene after Professor P.V. Ramzaev. Individual accumulated doses of medical exposure have been calculated with a computer code, MEDS (Medical Exposure Dosimetry System), specifically developed at the URCRM. Results: At present, the “Registry of x-ray diagnostic procedures” contains information on individual x-ray examinations for over 9,500 persons including 6,415 TRC members. Statistical analysis of the Registry data showed that the more frequent types of examinations were fluoroscopy and radiography of the chest and fluoroscopy of the stomach and the esophagus. Average absorbed doses accumulated by year 2005 calculated for the 12 organs varied from 4 mGy for testes to 40 mGy for bone surfaces. Maximum individual medical doses could reach 500–650 mGy and in some cases exceeded doses from exposure at the Techa River. Conclusions: For the first time the doses of medical exposure were calculated and analyzed for members of the Techa River Cohort who received diagnostic radiation at the URCRM clinics. These results are being used in radiation-risk analysis to adjust for this source of confounding exposure in the TRC.

Shagina, N. B.; Golikov, V.; Degteva, M. O.; Vorobiova, M. I.; Anspaugh, L. R.; Napier, Bruce A.

2012-11-01T23:59:59.000Z

266

Dynamic Response of a Rotor-air Bearing System Due to Base Induced Periodic Motions  

E-Print Network (OSTI)

Oil-free microturbomachinery (MTM) are inevitably subjected to base or foundation excitations: multiple periodic load excitations from internal combustion (IC) engines in turbochargers, for example. Too large base excitations can produce severe damage, even failure, due to hard collision or rubbing contact between a rotor and its bearings. Therefore, it is paramount to evaluate the reliability of rotor-air bearing systems to withstanding base load excitations. In 2008, intermittent shock excitations, up to 30 g (pk-pk), were introduced to a test rig consisting of a rotor (0.825 kg) supported on two hybrid flexure pivot tilting pad gas bearings (FPTPBs). The experiments demonstrated the reliability of the gas bearings to withstanding external transient load excitations. Presently, a shaker delivers periodic load excitations to the base plate supporting the test rig. The whole system, weighing 48 kg, is supported on two soft coil springs and its lowest natural frequency is ~5 Hz. The rod connecting the shaker to the base plate is not affixed rigidly to the test rig base. The rod merely pushes on the base plate and hence the induced based motions are intermittent with multiple impacts and frequencies. As with most practical conditions, the base motion frequencies (5-12 Hz) are low respective to the operating speed of the rotor-bearing system. Rotor speed coast down tests evidence the rotor-bearing system natural frequency when the gas bearings are supplied with feed pressures increasing from 2.36 to 5.08 bar (ab). Shaker excitation induced rotor response, relative to the bearing housings, contains the main input frequency (5-12 Hz) and its super harmonics; and because of the intermittency of the base motions, it also excites the rotor-bearing system natural frequency, with smaller motion amplitudes than synchronous motion components. The excitation of the system natural frequency does not mean rotordynamic instability. With base induced motions, the rotor motion amplitude at the system natural frequency increases as the gas bearing feed pressure decreases, as the rotor speed increases, and as the shaker input excitation frequency increases (5-12 Hz). Hence, the test rotor-air bearing system is highly sensitive to base motions, intermittent in character, in particular when the gas bearings are supplied with a low feed pressure. Predicted rotor motion responses obtained from XLTRC2 and an analytical rigid rotor model, both including the (measured) periodic base motions, show good correlation with the measurements. The research results demonstrate further the applicability of gas bearings into oil-free high speed MTM.

Niu, Yaying

2009-08-01T23:59:59.000Z

267

Bias in Differential Reflectivity due to Cross Coupling through the Radiation Patterns of Polarimetric Weather Radars  

Science Conference Proceedings (OSTI)

Examined is bias in differential reflectivity and its effect on estimates of rain rate due to coupling of the vertically and horizontally polarized fields through the radiation patterns. To that end, a brief review of the effects of the bias on ...

Dusan Zrni?; Richard Doviak; Guifu Zhang; Alexander Ryzhkov

2010-10-01T23:59:59.000Z

268

Deformation of a liquid surface due to an impinging gas jet: A conformal mapping approach  

E-Print Network (OSTI)

Deformation of a liquid surface due to an impinging gas jet: A conformal mapping approach Andong He on it. The problem of a gas jet impinging on a liquid surface arises in several important industrial and Stewart11 observed two types of instabilities of the gas-liquid system: oscillations of the interface

269

An Analytical Model of the Diurnal Oscillation of the Inversion Base Due to the Sea Breeze  

Science Conference Proceedings (OSTI)

The diurnal oscillation of the height of the inversion due to the sea breeze is studied analytically by use of a linear model. The base of the inversion over the sea moved downward during daytime and upward during nighttime. Over the land the ...

Yizhak Feliks

1994-04-01T23:59:59.000Z

270

Slippery Near-Surface Layer of the Ocean Arising Due to Daytime Solar Heating  

Science Conference Proceedings (OSTI)

Measurements made in the Equatorial Atlantic during the 35th cruise of the R/V Akademic Vernadsky using a free-rising profiler and drifters revealed a near-surface slippery layer of the ocean arising due to daytime solar heating. The solar ...

Vladimir N. Kudryavtsev; Alexander V. Soloviev

1990-05-01T23:59:59.000Z

271

Resolving stereo matching errors due to repetitive structures using model information  

Science Conference Proceedings (OSTI)

This study regards the problem of incorrect stereo matches due to the occurrence of repetitive structures in the scene. In stereo vision, repetitive structures may lead to ''phantom objects'' in front of or behind the true scene which cause severe problems ... Keywords: Correspondence analysis, Model-based 3D scene analysis, Stereo vision

Björn Barrois; Marcus Konrad; Christian Wöhler; Horst-Michael Groí

2010-09-01T23:59:59.000Z

272

Orbital characteristics due to the three dimensional swing-by in the Sun-Jupiter system  

Science Conference Proceedings (OSTI)

This paper presents an analytical and numerical study about orbital characteristics of trajectories due to a three dimensional swing-by maneuver between a planet and a particle. The model used has the same hypothesis of the circular restricted three-body ... Keywords: celestial mechanics, orbital dynamics, orbital maneuver, three dimensional swing-by

Jorge K. S. Formiga; Antonio F. B. A. Prado

2011-12-01T23:59:59.000Z

273

Spatial variability of sea level rise due to water impoundment behind dams  

E-Print Network (OSTI)

; Church and White, 2006]. This rate may be currently accelerating due to an increased influence of climate reservoirs (based on the work by Vorosmarty et al. [1997]), which are used in this paper's calculations. (b 1a), and added six additional post1997 dams from Chao et al. [2008] (specifically, the Three Gorges

Conrad, Clint

274

CS 6100 Program 1 Mars Explorer (20 points) Due Feb 3, 2011  

E-Print Network (OSTI)

scenario was presented by L Steels. The objectives are to explore a distant planet, and in particularCS 6100 Program 1 Mars Explorer (20 points) Due Feb 3, 2011 Create an applet (or other visual program) which allows the user to see the behavior of reactive agents. The Mars Explorer

Allan, Vicki H.

275

Greenhouse Gas Pollution in the Stratosphere Due to Increasing Airplane Traffic, Effects On the Environment  

E-Print Network (OSTI)

Greenhouse Gas Pollution in the Stratosphere Due to Increasing Airplane Traffic, Effects temperatures have increased much more than can be explained by changes in the concentration of greenhouse gases traffic round the clock and around the globe which is contributing to higher concentrations of greenhouse

Murty, Katta G.

276

Climatic Effects Due to Halogenated Compounds in the Earth’s Atmosphere  

Science Conference Proceedings (OSTI)

Using a one-dimensional radiative-convective model, we perform a sensitivity study of the effect of ozone depletion in the stratosphere on the surface temperature. There could be a cooling of the surface temperature by 0.2 K due to ...

Wei-Chyung Wang; Joseph P. Pinto; Yuk Ling Yung

1980-02-01T23:59:59.000Z

277

Changes in cosmic ray cut-o rigidities due to secular variations of the geomagnetic eld  

E-Print Network (OSTI)

Changes in cosmic ray cut-o rigidities due to secular variations of the geomagnetic ®eld A. Bhattacharyya1 , B. Mitra2 1 Indian Institute of Geomagnetism, Colaba, Bombay 400005, India 2 Department rays arriving at a point in an arbitrary direction, when the main geomagnetic ®eld is approximated

Paris-Sud XI, Université de

278

Project due (before) Wednesday, April 13 (5 pm) Two to three pages of write-up  

E-Print Network (OSTI)

Project Project due (before) Wednesday, April 13 (5 pm) Two to three pages of write often as informative other methods of unsupervised learning include projection methods "classification measure Dii = p j=1 |xij - xi j| manhattan Dii = p j=1 |xij - xi j| |xij + xi j| Canberra STA 450/4000 S

Reid, Nancy

279

Results and Comparison from the SAM Linear Fresnel Technology Performance Model: Preprint  

DOE Green Energy (OSTI)

This paper presents the new Linear Fresnel technology performance model in NREL's System Advisor Model. The model predicts the financial and technical performance of direct-steam-generation Linear Fresnel power plants, and can be used to analyze a range of system configurations. This paper presents a brief discussion of the model formulation and motivation, and provides extensive discussion of the model performance and financial results. The Linear Fresnel technology is also compared to other concentrating solar power technologies in both qualitative and quantitative measures. The Linear Fresnel model - developed in conjunction with the Electric Power Research Institute - provides users with the ability to model a variety of solar field layouts, fossil backup configurations, thermal receiver designs, and steam generation conditions. This flexibility aims to encompass current market solutions for the DSG Linear Fresnel technology, which is seeing increasing exposure in fossil plant augmentation and stand-alone power generation applications.

Wagner, M. J.

2012-04-01T23:59:59.000Z

280

Shellfish consumption and intertidal occupancy review, Sellafield, 2004. This note describes a review of public radiation exposure pathways due to liquid radioactive  

E-Print Network (OSTI)

a review of public radiation exposure pathways due to liquid radioactive waste discharges from the British limited to adults. The results are shown in Tables 1 to 3. Data analysis Internal exposure In addition and external exposure pathways have also been conducted by the Centre for Environment, Fisheries

Note: This page contains sample records for the topic "qualitative result due" 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

Home Energy Saver: Comparing Your Results to Your Utility Bill  

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

Comparing The Results to The Home's Utility Bill Comparing The Results to The Home's Utility Bill Energy use varies widely, even among seemingly identical homes! This is because of differences in house design, appliances, lifestyles, and comfort requirements. If your Home Energy Saver results differ from your actual energy bills, be sure to first check that all your input values agree with how your home is actually designed and operated. If the total cost differs but energy use is the same, keep in mind that we use a single price for energy, while many utilities use complicated "tariff structures", where the price varies by the time of year and/or day, your level of consumption, or other factors. Any remaining differences are probably due to one or more of the factors below. After reviewing these factors, you may want to modify

282

A LOFAR RFI detection pipeline and its first results  

E-Print Network (OSTI)

Radio astronomy is entering a new era with new and future radio observatories such as the Low Frequency Array and the Square Kilometer Array. We describe in detail an automated flagging pipeline and evaluate its performance. With only a fraction of the computational cost of correlation and its use of the previously introduced SumThreshold method, it is found to be both fast and unrivalled in its high accuracy. The LOFAR radio environment is analysed with the help of this pipeline. The high time and spectral resolution of LOFAR have resulted in an observatory where only a few percent of the data is lost due to RFI.

Offringa, A R; Zaroubi, S; Biehl, M

2010-01-01T23:59:59.000Z

283

Climatic effects due to halogenated compounds in the earth's atmosphere  

SciTech Connect

Using a one-dimensional radiative-convective model, we perform a sensitivity study of the effect of ozone depletion in the stratosphere on the surface temperature. There could be a cooling of the surface temperature by approx.0.2 K due to chlorofluoromethane-induced ozone depletion at steady state (assuming 1973 release rates). This cooling reduces significantly the greenhouse effect due to the presence of chlorofluoromethanes. Carbon tetrafluoride has a strong ..nu../sub 3/ band at 7.8 ..mu..m, and the atmospheric greenhouse effect is shown to be 0.07 and 0.12 K (ppbv)/sup -1/ with and without taking into account overlap with CH/sub 4/ and N/sub 2/O bands. At concentration higher than 1 ppbv, absorption by the ..nu../sub 3/ band starts to saturate and the greenhouse effect becomes less efficient.

Wang, W.; Pinto, J.P.; Yung, Y.L.

1980-02-01T23:59:59.000Z

284

Experimental Evidence for a Reduction in Electron Thermal Diffusion due to Trapped Particles  

Science Conference Proceedings (OSTI)

New high time resolution measurements of the electron thermal diffusion {chi}{sub e} throughout the sawtooth cycle of the Madison Symmetric Torus reversed-field pinch have been made by utilizing the enhanced capabilities of the upgraded multipoint, multipulse Thomson scattering system. These measurements are compared to the {chi}{sub e} due to magnetic diffusion predicted by using information from a new high spectral resolution zero-{beta} nonlinear resistive magnetohydrodynamic simulation performed, for the first time, at the Lundquist number of high current Madison Symmetric Torus plasmas (S{approx_equal}4x10{sup 6}). Agreement between the measured and predicted values is found only if the reduction in thermal diffusion due to trapped particles is taken into account.

Reusch, J. A.; Anderson, J. K.; Schnack, D. D. [Department of Physics, University of Wisconsin-Madison, 1150 University Avenue, Madison, Wisconsin 53706 (United States); Den Hartog, D. J.; Ebrahimi, F.; Stephens, H. D.; Forest, C. B. [Department of Physics, University of Wisconsin-Madison, 1150 University Avenue, Madison, Wisconsin 53706 (United States); Center for Magnetic Self-Organization in Laboratory and Astrophysical Plasmas, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States)

2011-10-07T23:59:59.000Z

285

Subsidence due to fluid withdrawal: a survey of analytical capabilities. [1225 citations  

DOE Green Energy (OSTI)

An extensive review of the literature was conducted in the area of land subsidence due to the withdrawal of fluids. A method of categorizing the citations was developed to facilitate identification of references relating to specific fields of interest. A brief review of the materials represented by the bibliography indicates the state-of-the-art within this area. The bibliography (containing 1225 citations) is presented in its categorized form. 5 figs., 3 tabs.

Engi, D.

1985-08-01T23:59:59.000Z

286

Assignment 3 MECH 6511 Due on Mar. 22, 06 Question 1  

E-Print Network (OSTI)

. Calculate the volume of air space in the walls of an expanded polystyrene foam cup of 50 kg/m3 densityAssignment 3 MECH 6511 Due on Mar. 22, 06 Question 1: The density of polystyrene is 1.05 g/cm3 (graphite): 2.25 g/cm3 . #12;Question 3: The time dependence of crystallization can be described by Avrami

Medraj, Mamoun

287

Assignment 3 MECH 421 Due on Mar. 22, 06 Question 1  

E-Print Network (OSTI)

. Calculate the volume of air space in the walls of an expanded polystyrene foam cup of 50 kg/m3 densityAssignment 3 MECH 421 Due on Mar. 22, 06 Question 1: The density of polystyrene is 1.05 g/cm3 (graphite): 2.25 g/cm3 . #12;Question 3: An extruder has a barrel diameter = 5.0 inch and length = 12 ft

Medraj, Mamoun

288

Neutronic Aspects and Recent Experimental Results with ...  

Science Conference Proceedings (OSTI)

... Neutronic Aspects and Recent Experimental Results with Methane Moderators at IUCF Low Energy Neutron Source (LENS). ...

289

The mean electromotive force due to turbulence of a conducting fluid in the presence of mean flow  

E-Print Network (OSTI)

The mean electromotive force caused by turbulence of an electrically conducting fluid, which plays a central part in mean--field electrodynamics, is calculated for a rotating fluid. Going beyond most of the investigations on this topic, an additional mean motion in the rotating frame is taken into account. One motivation for our investigation originates from a planned laboratory experiment with a Ponomarenko-like dynamo. In view of this application the second--order correlation approximation is used. The investigation is of high interest in astrophysical context, too. Some contributions to the mean electromotive are revealed which have not been considered so far, in particular contributions to the $\\alpha$--effect and related effects due to the gradient of the mean velocity. Their relevance for dynamo processes is discussed. In a forthcoming paper the results reported here will be specified to the situation in the laboratory and partially compared with experimental findings.

Karl-Heinz Readler; Rodion Stepanov

2005-12-14T23:59:59.000Z

290

TMED-4 INTERIM REPORT PURE ZR EQUILIBRIUM TEST RESULTS  

DOE Green Energy (OSTI)

Due to higher than expected permeation rates in the production of tritium in the TVA, a development and testing program was implemented to develop the understanding of why the higher rates were occurring. In addition, improved data are needed for both the design as well as the predictive models. One part of the program was to determine the equilibrium pressure of hydrogen and tritium over NPZ (1). During the course of this testing, some curious results were discovered (2) compared to the published literature data (3). Due to these apparently results, a follow-on task was undertaken to determine the equilibrium pressure of protium and deuterium over pure zirconium. A series of experiments were conducted to determine equilibrium pressures and isotherm data for the zirconium - protium and zirconium - deuterium systems. The data match the published literature data reasonably well with the plateau extending to loadings of about 1.4. There is a significant pressure rise for loadings greater than 1.7.

Korinko, P.; Morgan, G.

2010-12-17T23:59:59.000Z

291

Rigorous Results for the Periodic Oscillation of an Adiabatic Piston  

E-Print Network (OSTI)

We study a heavy piston of mass $M$ that moves in one dimension. The piston separates two gas chambers, each of which contains finitely many ideal, unit mass gas particles moving in $d$ dimensions, where $ d\\geq 1$. Using averaging techniques, we prove that the actual motions of the piston converge in probability to the predicted averaged behavior on the time scale $M^ {1/2} $ when $M$ tends to infinity while the total energy of the system is bounded and the number of gas particles is fixed. Neishtadt and Sinai previously pointed out that an averaging theorem due to Anosov should extend to this situation. When $ d=1$, the gas particles move in just one dimension, and we prove that the rate of convergence of the actual motions of the piston to its averaged behavior is $\\mathcal{O} (M^ {-1/2}) $ on the time scale $M^ {1/2} $. The convergence is uniform over all initial conditions in a compact set. We also investigate the piston system when the particle interactions have been smoothed. The convergence to the averaged behavior again takes place uniformly, both over initial conditions and over the amount of smoothing. In addition, we prove generalizations of our results to $N$ pistons separating $N+1$ gas chambers. We also provide a general discussion of averaging theory and the proofs of a number of previously known averaging results. In particular, we include a new proof of Anosov's averaging theorem for smooth systems that is primarily due to Dolgopyat.

Paul Wright

2007-04-05T23:59:59.000Z

292

A qualitative perspective on the dynamics of a single-Cooper-pair box with a phase-damped cavity  

E-Print Network (OSTI)

In a recent paper Dajka, et.al., [J. Phys. A \\textbf{40}, F879 (2007)] predicted that some composite systems can be entangled forever even if coupled with a thermal bath. We analyze the transient entanglement of a single-Cooper-pair box biased by a classical voltage and irradiated by a quantized field and find the unusual feature that the phase-damped cavity can lead to a long-lived entanglement. The results show an asymptotic value of the idempotency defect (concurrence) which embodies coherence loss (entanglement survival), independent of the interaction development by dependent critically on environment.

Mahmoud Abdel-Aty

2008-01-18T23:59:59.000Z

293

Comment on"Air Emissions Due to Wind and Solar Power" and Supporting Information  

SciTech Connect

Katzenstein and Apt investigate the important question of pollution emission reduction benefits from variable generation resources such as wind and solar. Their methodology, which couples an individual variable generator to a dedicated gas plant to produce a flat block of power is, however, inappropriate. For CO{sub 2}, the authors conclude that variable generators 'achieve {approx} 80% of the emission reductions expected if the power fluctuations caused no additional emissions.' They find even lower NO{sub x} emission reduction benefits with steam-injected gas turbines and a 2-4 times net increase in NO{sub x} emissions for systems with dry NO{sub x} control unless the ratio of energy from natural gas to variable plants is greater than 2:1. A more appropriate methodology, however, would find a significantly lower degradation of the emissions benefit than suggested by Katzenstein and Apt. As has been known for many years, models of large power system operations must take into account variable demand and the unit commitment and economic dispatch functions that are practiced every day by system operators. It is also well-known that every change in wind or solar power output does not need to be countered by an equal and opposite change in a dispatchable resource. The authors recognize that several of their assumptions to the contrary are incorrect and that their estimates therefore provide at best an upper bound to the emissions degradation caused by fluctuating output. Yet they still present the strong conclusion: 'Carbon dioxide emissions reductions are likely to be 75-80% of those presently assumed by policy makers. We have shown that the conventional method used to calculate emissions is inaccurate, particularly for NO{sub x} emissions.' The inherently problematic methodology used by the authors makes such strong conclusions suspect. Specifically, assuming that each variable plant requires a dedicated natural gas backup plant to create a flat block of power ignores the benefits of diversity. In real power systems, operators are required to balance only the net variations of all loads and all generators, not the output of individual loads or generators; doing otherwise would ensure an enormous amount of unnecessary investment and operating costs. As a result, detailed studies that aggregate the variability of all loads and generators to the system level find that the amount of operating reserves required to reliably integrate variable resources into the grid are on the order of 10% of the nameplate capacity of the variable generators, even when upto25%of gross demand is being met by variable generation. The authors implicit assumption that incremental operating reserves must be 100% of the nameplate capacity of the variable generation, and be available at all times to directly counter that variability, excludes the option of decommitting conventional units when the load net of variable generation is low. In real power systems, generation response to wind variation can typically be met by a combination of committed units, each operating at a relatively efficient point of their fuel curves. In the Supporting Information, we conceptually demonstrate that the CO{sub 2} and NO{sub x} efficiency penalty found by the authors can be significantly reduced by considering the unit commitment decision with just five plants. Real systems often have tens to hundreds of plants that can be committed and decommitted over various time frames. Ignoring the flexibility of the unit commitment decision therefore leads to unsupportable results. Anumber of analyses of the fuel savings and CO{sub 2} emission benefits of variable generation have considered realistic operating reserve requirements and unit commitment decisions in models that include the reduction in part load efficiency of conventional plants. The efficiency penalty due to the variability of wind in four studies considered by Gross et al. is negligible to 7%, for up to a 20% wind penetration level. In short, for moderate wind penetration levels, 'there is no evidence available to

Mills, Andrew D.; Wiser, Ryan H.; Milligan, Michael; O'Malley, Mark

2009-03-18T23:59:59.000Z

294

Comment on"Air Emissions Due to Wind and Solar Power" and Supporting Information  

Science Conference Proceedings (OSTI)

Katzenstein and Apt investigate the important question of pollution emission reduction benefits from variable generation resources such as wind and solar. Their methodology, which couples an individual variable generator to a dedicated gas plant to produce a flat block of power is, however, inappropriate. For CO{sub 2}, the authors conclude that variable generators 'achieve {approx} 80% of the emission reductions expected if the power fluctuations caused no additional emissions.' They find even lower NO{sub x} emission reduction benefits with steam-injected gas turbines and a 2-4 times net increase in NO{sub x} emissions for systems with dry NO{sub x} control unless the ratio of energy from natural gas to variable plants is greater than 2:1. A more appropriate methodology, however, would find a significantly lower degradation of the emissions benefit than suggested by Katzenstein and Apt. As has been known for many years, models of large power system operations must take into account variable demand and the unit commitment and economic dispatch functions that are practiced every day by system operators. It is also well-known that every change in wind or solar power output does not need to be countered by an equal and opposite change in a dispatchable resource. The authors recognize that several of their assumptions to the contrary are incorrect and that their estimates therefore provide at best an upper bound to the emissions degradation caused by fluctuating output. Yet they still present the strong conclusion: 'Carbon dioxide emissions reductions are likely to be 75-80% of those presently assumed by policy makers. We have shown that the conventional method used to calculate emissions is inaccurate, particularly for NO{sub x} emissions.' The inherently problematic methodology used by the authors makes such strong conclusions suspect. Specifically, assuming that each variable plant requires a dedicated natural gas backup plant to create a flat block of power ignores the benefits of diversity. In real power systems, operators are required to balance only the net variations of all loads and all generators, not the output of individual loads or generators; doing otherwise would ensure an enormous amount of unnecessary investment and operating costs. As a result, detailed studies that aggregate the variability of all loads and generators to the system level find that the amount of operating reserves required to reliably integrate variable resources into the grid are on the order of 10% of the nameplate capacity of the variable generators, even when upto25%of gross demand is being met by variable generation. The authors implicit assumption that incremental operating reserves must be 100% of the nameplate capacity of the variable generation, and be available at all times to directly counter that variability, excludes the option of decommitting conventional units when the load net of variable generation is low. In real power systems, generation response to wind variation can typically be met by a combination of committed units, each operating at a relatively efficient point of their fuel curves. In the Supporting Information, we conceptually demonstrate that the CO{sub 2} and NO{sub x} efficiency penalty found by the authors can be significantly reduced by considering the unit commitment decision with just five plants. Real systems often have tens to hundreds of plants that can be committed and decommitted over various time frames. Ignoring the flexibility of the unit commitment decision therefore leads to unsupportable results. Anumber of analyses of the fuel savings and CO{sub 2} emission benefits of variable generation have considered realistic operating reserve requirements and unit commitment decisions in models that include the reduction in part load efficiency of conventional plants. The efficiency penalty due to the variability of wind in four studies considered by Gross et al. is negligible to 7%, for up to a 20% wind penetration level. In short, for moderate wind penetration levels, 'there is no evidence available to

Mills, Andrew D.; Wiser, Ryan H.; Milligan, Michael; O'Malley, Mark

2009-03-18T23:59:59.000Z

295

1 FIRST RESULTS FROM THE SWIFT UVOT  

E-Print Network (OSTI)

We review some of the initial data from the UVOT telescope on the Swift observatory. Statistics based on about six months of data suggest a dark burst fraction of about 50 % when combining both UVOT and ground-based observations. There is evidence that some bursts have a large gamma-ray efficiency, which may be due to strong magnetic fields in their ejecta. The bright GRB050525A shows behaviour broadly consistent with expectations from the simple fireball model for bursts, including evidence for a reverse shock component in the UVOT data, and an achromatic break in decay slope indicative of a jet break. Other bursts observed with Swift have a shallow decay initially which is difficult to reconcile with the simple model. Replenishment of the forward shock energy by continued ejection of material from the central engine, or initial injection of material with a range of velocities, offers a potential explanation. In the case of the XRF050406 an initially rising optical afterglow flux followed by a shallow decay may be due to observation of a structured jet from a significant off-axis angle.

K. O. Mason; A. J. Blustin; P. W. A. Roming

2005-01-01T23:59:59.000Z

296

Prediction of Failure Due to Thermal Aging, Corrosion and Environmental Fracture in Amorphous and Titanium Alloys  

DOE Green Energy (OSTI)

DARPA is exploring a number of advanced materials for military applications, including amorphous metals and titanium-based alloys. Equipment made from these materials can undergo degradation due to thermal aging, uniform corrosion, pitting, crevice corrosion, denting, stress corrosion cracking, corrosion fatigue, hydrogen induced cracking and microbial influenced corrosion. Amorphous alloys have exceptional resistance to corrosion, due in part to the absence of grain boundaries, but can undergo crystallization and other phase instabilities during heating and welding. Titanium alloys are extremely corrosion resistant due to the formation of a tenacious passive film of titanium oxide, but is prone to hydrogen absorption in crevices, and hydrogen induced cracking after hydrogen absorption. Accurate predictions of equipment reliability, necessary for strategic planning, requires integrated models that account for all relevant modes of attack, and that can make probabilistic predictions. Once developed, model parameters must be determined experimentally, and the validity of models must be established through careful laboratory and field tests. Such validation testing requires state-of-the-art surface analytical techniques, as well as electrochemical and fracture mechanics tests. The interaction between those processes that perturb the local environment on a surface and those that alter metallurgical condition must be integrated in predictive models. The material and environment come together to drive various modes of corrosive attack (Figure 1). Models must be supported through comprehensive materials testing capabilities. Such capabilities are available at LLNL and include: the Long Term Corrosion Test Facility (LTCTF) where large numbers of standard samples can be exposed to realistic test media at several temperature levels; a reverse DC machine that can be used to monitor the propagation of stress corrosion cracking (SCC) in situ; and banks of potentiostats with temperature controlled cells for potentiostatic and potentiodynamic testing (Figure 2).

Farmer, J C

2003-04-15T23:59:59.000Z

297

Permeability reduction of unconsolidated media due to stress-induced silica dissolution  

SciTech Connect

Permeability measurements were made on both glass beads and Ottowa sand under uniform confining stress conditions. Extreme permeability reduction (95%) of the glass beads was observed at temperatures exceeding 150/sup 0/C and confining pressures of 13.8 MPa with distilled water as the flowing fluid. Permeability reduction in the Ottowa sand (40%) was also observed at high temperature and confining pressure. Effluent analysis revealed high concentrations of silica. Subsequent 300 hour experiments with Ottowa sand exhibited a steady decrease in permeability with time. SEM photographs of post experiment cores, indicate that the permeability reduction is mainly due to stress induced silica dissolution at grain contacts.

Udell, K.S.; Lofy, J.D.

1985-03-01T23:59:59.000Z

298

Ground subsidence due to mining operations. (Latest citations from the Compendex database). Published Search  

Science Conference Proceedings (OSTI)

The bibliography contains citations concerning ground subsidence associated with mining operations. Mine subsidence is discussed with reference to mathematical modeling, forecasting extent of cavitation, and rock mechanics and mechanisms of stress relaxation. Damage to above and below-ground structures as well as agricultural areas, and mining techniques designed to prevent or reduce subsidence are included. Monitoring of subsidence and detection of cavitation for surface, underground, and ocean floor mining areas are discussed and examples are analyzed. Subsidence due to aquifer water removal is referenced in a related bibliography. (Contains 250 citations and includes a subject term index and title list.)

Not Available

1993-06-01T23:59:59.000Z

299

The 1981 ocean tomography experiment: Preliminary results  

Science Conference Proceedings (OSTI)

Preliminary results from a 1981 test ocean acoustic tomography experiment are presented. The system deployed in the southern North Atlantic

The Ocean Tomography Group; R. C. Spindel

1982-01-01T23:59:59.000Z

300

Results of Baldrige Winners' Common Stock Comparison ...  

Science Conference Proceedings (OSTI)

... Results of Baldrige Winners' Common Stock Comparison Third NIST Stock Investment Study February 1997 Methodology: A hypothetical sum was ...

2013-09-11T23:59:59.000Z

Note: This page contains sample records for the topic "qualitative result due" 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

Threshold results for semilinear parabolic systems  

E-Print Network (OSTI)

A threshold result was proved in this paper for semilinear parabolic system with pure power type nonlinearities

Xie, Qiuyi Dai Haiyang He Junhui

2010-01-01T23:59:59.000Z

302

Results from Combined NMR and Electrochemical Impedance ...  

Science Conference Proceedings (OSTI)

Presentation Title, Oxygen-vacancy Transport in Heavily Doped Cubic Zirconia: Results from Combined NMR and Electrochemical Impedance Spectroscopies.

303

Wakefield and RF Kicks Due to Coupler Asymmetry in TESLA-Type Accelerating Cavities  

SciTech Connect

In a future linear collider, such as the International Linear Collider (ILC), trains of high current, low emittance bunches will be accelerated in a linac before colliding at the interaction point. Asymmetries in the accelerating cavities of the linac will generate fields that will kick the beam transversely and degrade the beam emittance and thus the collider performance. In the main linac of the ILC, which is filled with TESLA-type superconducting cavities, it is the fundamental (FM) and higher mode (HM) couplers that are asymmetric and thus the source of such kicks. The kicks are of two types: one, due to (the asymmetry in) the fundamental RF fields and the other, due to transverse wakefields that are generated by the beam even when it is on axis. In this report we calculate the strength of these kicks and estimate their effect on the ILC beam. The TESLA cavity comprises nine cells, one HM coupler in the upstream end, and one (identical, though rotated) HM coupler and one FM coupler in the downstream end (for their shapes and location see Figs. 1, 2) [1]. The cavity is 1.1 m long, the iris radius 35 mm, and the coupler beam pipe radius 39 mm. Note that the couplers reach closer to the axis than the irises, down to a distance of 30 mm.

Bane, K.L.F.; Adolphsen, C.; Li, Z.; /SLAC; Dohlus, M.; Zagorodnov, I.; /DESY; Gonin, I.; Lunin, A.; Solyak, N.; Yakovlev, V.; /Fermilab; Gjonaj, E.; Weiland, T.; /Darmstadt, Tech. Hochsch.

2008-07-07T23:59:59.000Z

304

Optical losses of solar mirrors due to atmospheric contamination at Liberal, Kansas and Oologah, Oklahoma  

DOE Green Energy (OSTI)

An assessment is presented of the effect of outdoor exposure on mirrors located at two sites selected for potential solar cogeneration/repowering facilities: Liberal, Kansas and Oologah, Oklahoma. Mirror coupons were placed on tracking heliostat simulators located in the proposed heliostat fields and were removed periodically. The spectral hemispherical and diffuse reflectances of these coupons were measured. Representative samples were analyzed for the chemical composition of the dust particulates using SEM/EDX. Other samples were washed with a high pressure spray and recharacterized to determine the effects of the residual dust. Average specular reflectance losses over the entire test period (up to 504 days) were 6 to 12%, with a range of 1 to 30%. Specular reflectance losses varied widely from day to day depending on local weather conditions. The losses due to scattering were 2 to 5 times greater than the losses due to absorptance. The average degradation rate over the first thirty days was an order of magnitude larger than the average degradation rate over the entire sampling period. Specular reflectance loss rates averaged 0.5% per day and greater between periods of natural cleaning. The chemical composition of the dust on the mirrors was characteristic of the indigenous soil, with some samples also showing the presence of sulfur and chlorine, possibly from cooling tower drift.

Dake, L.S.; Lind, M.A.

1981-09-01T23:59:59.000Z

305

Field collapse due to band-tail charge in amorphous silicon solar cells  

SciTech Connect

It is common for the fill factor to decrease with increasing illumination intensity in hydrogenated amorphous silicon solar cells. This is especially critical for thicker solar cells, because the decrease is more severe than in thinner cells. Usually, the fill factor under uniformly absorbed red light changes much more than under strongly absorbed blue light. The cause of this is usually assumed to arise from space charge trapped in deep defect states. The authors model this behavior of solar cells using the Analysis of Microelectronic and Photonic Structures (AMPS) simulation program. The simulation shows that the decrease in fill factor is caused by photogenerated space charge trapped in the band-tail states rather than in defects. This charge screens the applied field, reducing the internal field. Owing to its lower drift mobility, the space charge due to holes exceeds that due to electrons and is the main cause of the field screening. The space charge in midgap states is small compared with that in the tails and can be ignored under normal solar-cell operating conditions. Experimentally, the authors measured the photocapacitance as a means to probe the collapsed field. They also explored the light intensity dependence of photocapacitance and explain the decrease of FF with the increasing light intensity.

Wang, Qi; Crandall, R.S. [National Renewable Energy Lab., Golden, CO (United States); Schiff, E.A. [Syracuse Univ., NY (United States)

1996-05-01T23:59:59.000Z

306

CALCULATING ENERGY STORAGE DUE TO TOPOLOGICAL CHANGES IN EMERGING ACTIVE REGION NOAA AR 11112  

Science Conference Proceedings (OSTI)

The minimum current corona model provides a way to estimate stored coronal energy using the number of field lines connecting regions of positive and negative photospheric flux. This information is quantified by the net flux connecting pairs of opposing regions in a connectivity matrix. Changes in the coronal magnetic field, due to processes such as magnetic reconnection, manifest themselves as changes in the connectivity matrix. However, the connectivity matrix will also change when flux sources emerge or submerge through the photosphere, as often happens in active regions. We have developed an algorithm to estimate the changes in flux due to emergence and submergence of magnetic flux sources. These estimated changes must be accounted for in order to quantify storage and release of magnetic energy in the corona. To perform this calculation over extended periods of time, we must additionally have a consistently labeled connectivity matrix over the entire observational time span. We have therefore developed an automated tracking algorithm to generate a consistent connectivity matrix as the photospheric source regions evolve over time. We have applied this method to NOAA Active Region 11112, which underwent a GOES M2.9 class flare around 19:00 on 2010 October 16th, and calculated a lower bound on the free magnetic energy buildup of {approx}8.25 Multiplication-Sign 10{sup 30} erg over 3 days.

Tarr, Lucas; Longcope, Dana [Department of Physics, Montana State University, Bozeman, MT 59717 (United States)

2012-04-10T23:59:59.000Z

307

Applying DSM evaluation results to utility planning  

SciTech Connect

This paper describes the results of a study to assess the application of DSM evaluation results to utility forecasting and planning. The paper has three objectives: (1) identify forecasting and planning applications of evaluation studies, (2) identify major obstacles and problems associated with applying evaluation results to forecasting and planning, and (3) suggest approaches to address the major problems. The paper summarizes results from interviews with utilities, regulators, and consultants to determine how the utility industry currently applies evaluation results in forecasting and planning. The paper also includes results from a detailed case study of Sacramento Municipal Utility District (SMUD) and Southern California Edison Company (SCE), two utilities with large DSM programs and active evaluation efforts.

Baxter, L.W.

1995-07-01T23:59:59.000Z

308

Greenhouse impact due to the use of combustible fuels: Life cycle viewpoint and relative radiative forcing commitment  

SciTech Connect

Extensive information on the greenhouse impacts of various human actions is important in developing effective climate change mitigation strategies. The greenhouse impacts of combustible fuels consist not only of combustion emissions but also of emissions from the fuel production chain and possible effects on the ecosystem carbon storages. It is important to be able to assess the combined, total effect of these different emissions and to express the results in a comprehensive way. In this study, a new concept called relative radiative forcing commitment (RRFC) is presented and applied to depict the greenhouse impact of some combustible fuels currently used in Finland. RRFC is a ratio that accounts for the energy absorbed in the Earth system due to changes in greenhouse gas concentrations (production and combustion of fuel) compared to the energy released in the combustion of fuel. RRFC can also be expressed as a function of time in order to give a dynamic cumulative picture on the caused effect. Varying time horizons can be studied separately, as is the case when studying the effects of different climate policies on varying time scales. The RRFC for coal for 100 years is about 170, which means that in 100 years 170 times more energy is absorbed in the atmosphere due to the emissions of coal combustion activity than is released in combustion itself. RRFC values of the other studied fuel production chains varied from about 30 (forest residues fuel) to 190 (peat fuel) for the 100-year study period. The length of the studied time horizon had an impact on the RRFC values and, to some extent, on the relative positions of various fuels.

Kirkinen, J.; Palosuo, T.; Holmgren, K.; Savolainen, I. [VTT Technical Research Center Finland, Espoo (Finland)

2008-09-15T23:59:59.000Z

309

New results on jet fragmentation at CDF  

SciTech Connect

Presented are the latest results of jet fragmentation studies at the Tevatron using the CDF Run II detector. Studies include the distribution of transverse momenta (Kt) of particles jets, two-particle momentum correlations, and indirectly global event shapes in p{bar p} collisions. Results are discussed within the context of recent Next-to-Leading Log calculations as well as earlier experimental results from the Tevatron and e{sup +}e{sup -} colliders.

Jindariani, Sergo; /Florida U.

2006-12-01T23:59:59.000Z

310

Climate VISION: Private Sector Initiatives: Magnesium: Results  

Office of Scientific and Technical Information (OSTI)

plans, the International Magnesium Association and the federal government will begin tracking progress. The results will be measured by metrics developed by the industry, in...

311

result formats | OpenEI Community  

Open Energy Info (EERE)

result formats Home Jweers's picture Submitted by Jweers(83) Contributor 16 May, 2013 - 14:22 Multicolor Maps from Compound Queries ask queries compound queries developer Google...

312

Innovation Impact: Breakthrough Research Results (Brochure)  

SciTech Connect

The Innovation Impact brochure captures key breakthrough results across NREL's primary areas of renewable energy and energy efficiency research: solar, wind, bioenergy, transportation, buildings, analysis, and manufacturing technologies.

Not Available

2013-07-01T23:59:59.000Z

313

Acceptance sampling methods for sample results verification  

SciTech Connect

This report proposes a statistical sampling method for use during the sample results verification portion of the validation of data packages. In particular, this method was derived specifically for the validation of data packages for metals target analyte analysis performed under United States Environmental Protection Agency Contract Laboratory Program protocols, where sample results verification can be quite time consuming. The purpose of such a statistical method is to provide options in addition to the ``all or nothing`` options that currently exist for sample results verification. The proposed method allows the amount of data validated during the sample results verification process to be based on a balance between risks and the cost of inspection.

Jesse, C.A.

1993-06-01T23:59:59.000Z

314

Fuel Cell Bus Evaluation Results (Presentation)  

DOE Green Energy (OSTI)

Presentation on the results from the DOE fuel cell bus evaluation given at the Transportation Research Board's 87th annual meeting, January 14, 2008.

Eudy, L.

2008-01-14T23:59:59.000Z

315

final results 2011_turkey.pptx  

Science Conference Proceedings (OSTI)

FINAL RESULTS RESCUE ROBOT LEAGUE 1ST iRAP_JUDY (Thailand) 835 25 2ND MRL (Iran) 430 13 3RD STABILIZE (Thailand) 405 11 ...

2011-08-29T23:59:59.000Z

316

DOE Solar Decathlon: 2005 Final Results  

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

Dwelling contests winner Solar Decathlon 2005 Final Results The overall winners of the Solar Decathlon and the winners of the ten contests are listed here. For more information...

317

Information Solutions: Improving Search Results - Meta Tags  

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

Improving Search Results - Meta Tags Definition and Usage Metadata is data (information) about data. The tag provides metadata about the HTML document. Metadata will not be...

318

Dosimetric perturbations due to an implanted cardiac pacemaker in MammoSite{sup Registered-Sign} treatment  

Science Conference Proceedings (OSTI)

Purpose: To investigate dose perturbations for pacemaker-implanted patients in partial breast irradiation using high dose rate (HDR) balloon brachytherapy. Methods: Monte Carlo (MC) simulations were performed to calculate dose distributions involving a pacemaker in Ir-192 HDR balloon brachytherapy. Dose perturbations by varying balloon-to-pacemaker distances (BPD = 50 or 100 mm) and concentrations of iodine contrast medium (2.5%, 5.0%, 7.5%, and 10.0% by volume) in the balloon were investigated for separate parts of the pacemaker (i.e., battery and substrate). Relative measurements using an ion-chamber were also performed to confirm MC results. Results: The MC and measured results in homogeneous media without a pacemaker agreed with published data within 2% from the balloon surface to 100 mm BPD. Further their dose distributions with a pacemaker were in a comparable agreement. The MC results showed that doses over the battery were increased by a factor of 3, compared to doses without a pacemaker. However, there was no significant dose perturbation in the middle of substrate but up to 70% dose increase in the substrate interface with the titanium capsule. The attenuation by iodine contrast medium lessened doses delivered to the pacemaker by up to 9%. Conclusions: Due to inhomogeneity of pacemaker and contrast medium as well as low-energy photons in Ir-192 HDR balloon brachytherapy, the actual dose received in a pacemaker is different from the homogeneous medium-based dose and the external beam-based dose. Therefore, the dose perturbations should be considered for pacemaker-implanted patients when evaluating a safe clinical distance between the balloon and pacemaker.

Sung, Wonmo; Kim, Siyong; Kim, Jung-in; Lee, Jae-gi; Shin, Young-Joo; Jung, Jae-Yong; Ye, Sung-Joon [Interdisciplinary Program in Radiation Applied Life Science, Seoul National University College of Medicine, Seoul 110-799, South Korea and Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul 110-744 (Korea, Republic of); Department of Radiation Oncology, Mayo Clinic, Jacksonville, Florida 32224 (United States); Interdisciplinary Program in Radiation Applied Life Science, Seoul National University College of Medicine, Seoul 110-799, South Korea and Department of Radiation Oncology, Kangbuk Samsung Medical Center, Seoul 110-746 (Korea, Republic of); Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul 110-744, South Korea and Department of Biomedical Radiation Sciences, Seoul National University, Seoul 151-742 (Korea, Republic of); Department of Radiation Oncology, Sanggye Paik Hospital, Inje University, Seoul 139-707 (Korea, Republic of); Interdisciplinary Program in Radiation Applied Life Science, Seoul National University College of Medicine, Seoul 110-799 (Korea, Republic of); Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul 110-744 (Korea, Republic of); Department of Biomedical Radiation Sciences, Seoul National University, Seoul 151-742 (Korea, Republic of); Department of Radiation Oncology, Seoul National University, Seoul 110-799 (Korea, Republic of) and Advanced Institutes of Convergence Technology, Seoul National University, Suwon 443-270 (Korea, Republic of)

2012-10-15T23:59:59.000Z

319

The uncertainties due to quark energy loss on determining nuclear sea quark distribution from nuclear Drell-Yan data  

E-Print Network (OSTI)

By means of two different parametrizations of quark energy loss and the nuclear parton distributions determined only with lepton-nuclear deep inelastic scattering experimental data, a leading order phenomenological analysis is performed on the nuclear Drell-Yan differential cross section ratios as a function of the quark momentum fraction in the beam proton and target nuclei for E772 experimental data. It is shown that there is the quark energy loss effect in nuclear Drell-Yan process apart from the nuclear effects on the parton distribution as in deep inelastic scattering. The uncertainties due to quark energy loss effect is quantified on determining nuclear sea quark distribution by using nuclear Drell-Yan data. It is found that the quark energy loss effect on nuclear Drell-Yan cross section ratios make greater with the increase of quark momentum fraction in the target nuclei. The uncertainties from quark energy loss become bigger as the nucleus A come to be heavier. The Drell-Yan data on proton incident middle and heavy nuclei versus deuterium would result in an overestimate for nuclear modifications on sea quark distribution functions with neglecting the quark energy loss. Our results are hoped to provide good directional information on the magnitude and form of nuclear modifications on sea quark distribution functions by means of the nuclear Drell-Yan experimental data.

C. G. Duan; N. Liu; G. L. Li

2008-11-05T23:59:59.000Z

320

Level set simulation of coupled advection-diffusion and pore structure evolution due to mineral precipitation in porous media  

SciTech Connect

The nonlinear coupling of fluid flow, reactive chemical transport and pore structure changes due to mineral precipitation (or dissolution) in porous media play a key role in a wide variety of processes of scientific interest and practical importance. Significant examples include the evolution of fracture apertures in the subsurface, acid fracturing stimulation for enhanced oil recovery and immobilizations of radionuclides and heavy metals in contaminated groundwater. We have developed a pore-scale simulation technique for modeling coupled reactive flow and structure evolution in porous media and fracture apertures. Advection, diffusion, and mineral precipitation resulting in changes in pore geometries are treated simultaneously by solving fully coupled fluid momentum and reactive solute transport equations. In this model, the reaction-induced evolution of solid grain surfaces is captured using a level set method. A sub-grid representation of the interface, based on the level set approach, is used instead of pixel representations of the interface often used in cellular-automata and most lattice-Boltzmann methods. The model is validated against analytical solutions for simplified geometries. Precipitation processes were simulated under various flow conditions and reaction rates, and the resulting pore geometry changes are discussed. Quantitative relationships between permeability and porosity under various flow conditions and reaction rates are reported.

Xiaoyi Li; Hai Huang; Paul Meakin

2008-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "qualitative result due" 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

Explicit formulas for 2nd-order driving terms due to sextupoles and chromatic effects of quadrupoles.  

SciTech Connect

Optimization of nonlinear driving terms have become a useful tool for designing storage rings, especially modern light sources where the strong nonlinearity is dominated by the large chromatic effects of quadrupoles and strong sextupoles for chromaticity control. The Lie algebraic method is well known for computing such driving terms. However, it appears that there was a lack of explicit formulas in the public domain for such computation, resulting in uncertainty and/or inconsistency in widely used codes. This note presents explicit formulas for driving terms due to sextupoles and chromatic effects of quadrupoles, which can be considered as thin elements. The computation is accurate to the 4th-order Hamiltonian and 2nd-order in terms of magnet parameters. The results given here are the same as the APS internal note AOP-TN-2009-020. This internal nte has been revised and published here as a Light Source Note in order to get this information into the public domain, since both ELEGANT and OPA are using these formulas.

Wang, C-X. (Accelerator Systems Division (APS))

2012-04-25T23:59:59.000Z

322

Lowe's "Toolbox for Education" grant applications due by October 12  

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

Lowe's "Toolbox for Education" Grant Applications Lowe's "Toolbox for Education" Grant Applications Community Connections: Our link to Northern New Mexico Communities Latest Issue:Dec. 2013 - Jan. 2014 All Issues » submit Lowe's "Toolbox for Education" grant applications due by October 12 Five million dollars is available for the 2012-13 school year. September 1, 2012 dummy image Read our archives Contacts Editor Linda Anderman Email Community Programs Office Kurt Steinhaus Email Over the past five years, Lowe's "Toolbox for Education " program has provided almost $25 million to more than 5,000 schools across the country. Five million dollars is available for the 2012-13 school year; grant requests must be between $2,000 and $5,000 and will be accepted until October 12, or until 1,500 requests have been received. The grants must be

323

Estimates of thermal fatigue due to beam interruptions for an ALMR-type ATW  

SciTech Connect

Thermal fatigue due to beam interruptions has been investigated in a sodium cooled ATW using the Advanced Liquid Metal mod B design as a basis for the subcritical source driven reactor. A k{sub eff} of 0.975 was used for the reactor. Temperature response in the primary coolant system was calculated, using the SASSYS- 1 code, for a drop in beam current from full power to zero in 1 microsecond.. Temperature differences were used to calculate thermal stresses. Fatigue curves from the American Society of Mechanical Engineers Boiler and Pressure Vessel Code were used to determine the number of cycles various components should be designed for, based on these thermal stresses.

Dunn, F. E.; Wade, D. C.

1999-11-12T23:59:59.000Z

324

Cosmic ray spectral hardening due to dispersion of source injection spectra  

E-Print Network (OSTI)

The cosmic ray (CR) energy spectra measured with ATIC, CREAM and PAMELA showed that there is remarkable hardening for rigidity of several hundred GV. We propose that this hardening is due to the superposition of spectra from a population of sources, e.g., supernova remnants (SNRs), whose injection spectral indices have a dispersion. Adopting proper model parameters the observational data can be well explained. It is interesting that the injection source parameters are similar with that derived from gamma-ray observations of SNRs, which may support the SNR-origin of CRs. Furthermore this mechanism provides an alternative explanation of the "ankle-cutoff" structure of the ultra high energy CR spectra.

Yuan, Qiang; Bi, Xiao-Jun

2011-01-01T23:59:59.000Z

325

New perspectives on the damage estimation for buried pipeline systems due to seismic wave propagation  

Science Conference Proceedings (OSTI)

Over the past three decades, seismic fragility fonnulations for buried pipeline systems have been developed following two tendencies: the use of earthquake damage scenarios from several pipeline systems to create general pipeline fragility functions; and, the use of damage scenarios from one pipeline system to create specific-system fragility functions. In this paper, the advantages and disadvantages of both tendencies are analyzed and discussed; in addition, a summary of what can be considered the new challenges for developing better pipeline seismic fragility formulations is discussed. The most important conclusion of this paper states that more efforts are needed to improve the estimation of transient ground strain -the main cause of pipeline damage due to seismic wave propagation; with relevant advances in that research field, new and better fragility formulations could be developed.

Pineda Porras, Omar Andrey [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

326

Water mass transformation due to mixed layer entrainment and mesoscale stirring: In series or parallel?  

E-Print Network (OSTI)

The convergence of advective and di#usive buoyancy flux must match the air-sea buoyancy flux between two outcropping isopycnals. This leads to a diagnostic framework for water mass transformation in which a myriad of di#erent processes can be incorporated under a unifying balance. We review how the diapycnal advection due to ubiquitous mixed layer entrainment can be included in this framework, and we estimate its contribution to the large scale transformation. We also consider how decomposing the flow and buoyancy field into mean, eddy and turbulent parts leads to clarifying the interaction of mixed layer and mesoscale (or sub-mesoscale) eddies in the overall large scale balance. 1.

A. Tandon

2001-01-01T23:59:59.000Z

327

The change in permeability spectra due to ion irradiation in the Co-based amorphous ribbon  

SciTech Connect

The Ar ion has been irradiated by an ion implanter with energy of 50, 70, and 100 keV and an ion dosage was set to 1.0x10{sup 17} ion/cm{sup 2} at a beam flux of 3.7 {mu}A/cm{sup 2}. The ion irradiation decreased the initial permeability and increased the relaxation frequency, and the behavior of permeability spectra due to ion irradiation was explained with damped harmonic model of domain wall on the general basis of magnetization mechanism. The ion irradiation gives rise to a significant change on the restoring force of domain wall but minor effect on the spin rotation. The enhancement in the permeability of the amorphous ribbon upon ion irradiation leads to a parallel improvement of giant magneto impedance response of the material, which is of practical use for sensing applications.

Park, D. G.; Song, H.; Cheong, Y. M. [Korea Atomic Energy Research Institute, Yuseong, P.O. Box 105, Daejeon 305-600 (Korea, Republic of); Park, C. Y. [Department of Physics, Seoul National University, Seoul 151-742 (Korea, Republic of); Kim, C. G. [Department of Materials Engineering, Chungnam National University, Daejeon 305-764 (Korea, Republic of)

2009-04-01T23:59:59.000Z

328

X-ray Absorption Due to Cold Gas in Cluster Cooling Cores  

E-Print Network (OSTI)

We have calculated the emergent X-ray properties for models of cluster cooling flows including the effects of accumulated cooled material. The opacity of this cooled gas can reduce the overall X-ray luminosity of the cooling flow, and values of Mdot based on these luminosities can underestimate the true value by factors of ~2. We find that accumulated cooled material can produce emergent surface brightness profiles much like those observed even for nearly homogeneous gas distributions. Consequently, much more of the gas may be cooling below X-ray emitting temperatures in the central regions of cooling flows (r cooling flows may have been underestimated. We show that distributed absorption in cooling flows produces a number of observable effects in the spectrum which may allow it to be differentiated from absorption due to gas in our Galaxy. Th...

Wise, M W; Wise, Michael W.; Sarazin, Craig L.

1999-01-01T23:59:59.000Z

329

Electron Scattering in InSb Quantum Wells due to Micro-twin Defects  

Science Conference Proceedings (OSTI)

The transport electron scattering due to micro-twin (MT) defects in InSb quantum wells (QWs) has been investigated at room temperature (RT). A linear-regression-based scattering analysis showed that Matthiessen's rule is applicable to the RT electron mobility in 20-nm-thick InSb QWs that contain MTs (whose density is 5.6x10{sup 2}-1.2x10{sup 4} /cm) and threading dislocations (8.7x10{sup 8}-3.2x10{sup 9} /cm{sup 2}) as dominant structural defects. For such an InSb QW whose local electron mobility in its non-MT regions is 2.8x10{sup 4}-4.5x10{sup 4} cm{sup 2}/(Vs), the MT-originated energy barrier against the electron transport is deduced to be 0.081-0.093 eV at RT.

Mishima, T. D.; Santos, M. B. [Homer L. Dodge Department of Physics and Astronomy, and Center for Semiconductor Physics in Nanostructure University of Oklahoma, 440 W. Brooks St., Norman, OK 73019 (United States)

2011-12-26T23:59:59.000Z

330

Alleviation of effective permeability reduction of gas-condensate due to condensate buildup near wellbore  

E-Print Network (OSTI)

When the reservoir pressure is decreased below dew point pressure of the gas near the wellbore, gas-condensate wells start to decrease production because condensate is separated from the gas around the wellbore causing a decrease in gas relative permeability. This effect is more dramatic if the permeability of the reservoir is low. The idea proposed for reducing this problem is to eliminate the irreducible water saturation near the wellbore to leave more space for the gas to flow and therefore increase the productivity of the well. In this research a simulation study was performed to determine the range of permeabilities where the cylinder of condensate will seriously affect the wellÂ?s productivity, and the distance the removal of water around the wellbore has to be extended in order to have acceleration of production and an increase in the final reserves. A compositional-radial reservoir was simulated with one well in the center of 109 grids. Three gas-condensate fluids with different heptanes plus compositions ( 4, 8 and 11 mole %), and two irreducible water saturations were used. The fitting of the Equation of State (EOS) was performed using the method proposed by Aguilar and McCain. Several simulations were performed with several permeabilities to determine the permeabilities for which the productivity is not affected by the presence of the cylinder of condensate. At constant permeability, various radii of a region of zero initial water saturation around the wellbore were simulated and comparisons of the effects of removal of irreducible water on productivity were made. Reservoirs with permeabilities lower than 100 mD showed a reduction in the ultimate reserves due to the cylinder of condensate. The optimal radius of water removal depends on the fluid composition and the irreducible water saturation of the reservoir. The expected increase in reserves due to water removal varies from 10 to 80 % for gas production and from 4 to 30% for condensate production.

Carballo Salas, Jose Gilberto

2004-12-01T23:59:59.000Z

331

Regional Policy DSS: Result Indicators Definition Problems  

Science Conference Proceedings (OSTI)

This paper addresses the issue of public decision support in regional economic development, being more particularly concerned with result indicators definition. The decisions taken within such a framework necessarily are cooperative in nature and involve ... Keywords: Group Decision-Making, Ontologies, Polydoxies, Public Decision Support Systems, Result Indicators

Maryse Salles

2008-06-01T23:59:59.000Z

332

Gasoline prices rise due to increased crude oil costs - Today in ...  

U.S. Energy Information Administration (EIA)

However, as a result of vehicle fuel economy improvements, costs-per-mile-driven are not at record highs. Further, gasoline prices vary significantly by region, ...

333

Investigation of diesel-fuel fire vulnerability parameters in armored personnel carriers due to ballistic penetration. Interim report, March 1984-March 1985  

Science Conference Proceedings (OSTI)

A series of full-scale ballistics tests were conducted to evaluate the diesel fuel fire vulnerability parameters in armored personnel carriers due to penetration by 90-mm HEAT rounds. The tests considered fuel cell penetration through 1.5-inch aluminum armor with the four variables: fuel temperature, fuel antimisting additive concentration, air availability, and Halon 1301 fire-suppression system. The test results are summarized.

Kanakia, M.D.; Wright, B.R.

1985-03-22T23:59:59.000Z

334

Reconciling the CAST and PVLAS Results  

E-Print Network (OSTI)

The PVLAS experiment has recently claimed evidence for an axion-like particle in the milli-electron-Volt mass range with a coupling to two photons that appears to be in contradiction with the negative results of the CAST experiment searching for solar axions. The simple axion interpretation of these two experimental results is therefore untenable and it has posed a challenge for theory. We propose a possible way to reconcile these two results by postulating the existence of an ultralight pseudo-scalar particle interacting with two photons and a scalar boson and the existence of a low scale phase transition in the theory.

R. N. Mohapatra; Salah Nasri

2006-10-05T23:59:59.000Z

335

Reconciling the CAST and PVLAS Results  

SciTech Connect

The PVLAS experiment has recently claimed evidence for an axionlike particle in the milli-electron-volt mass range with a coupling to two photons that appears to be in contradiction with the negative results of the CAST experiment searching for solar axions. The simple axion interpretation of these two experimental results is therefore untenable and it has posed a challenge for theory. We propose a possible way to reconcile these two results by postulating the existence of an ultralight pseudoscalar particle interacting with two photons and a scalar boson and the existence of a low scale phase transition in the theory.

Mohapatra, R. N. [Department of Physics, University of Maryland, College Park, Maryland 20742 (United States); Nasri, Salah [Department of Physics, University of Florida, Gainesville, Florida 32611 (United States)

2007-02-02T23:59:59.000Z

336

Imaging Atmospheric Cerenkov Telescopes: Techniques and Results  

E-Print Network (OSTI)

The hunt for cosmic TeV particle accelerators is prospering through Imaging Atmospheric Cerenkov Telescopes. We face challenges such as low light levels and MHz trigger rates, and the need to distinguish between particle air showers stemming from primary gamma rays and those due to the hadronic cosmic ray background. Our test beam is provided by the Crab Nebula, a steady accelerator of particles to energies beyond 20 TeV. Highly variable gamma-ray emission, coincident with flares at longer wavelengths, is revealing the particle acceleration mechanisms at work in the relativistic jets of Active Galaxies. These 200 GeV to 20 TeV photons propagating over cosmological distances allow us to place a limit on the infra-red background linked to galaxy formation and, some speculate, to the decay of massive relic neutrinos. Gamma rays produced in neutralino annihilation or the evaporation of primordial black holes may also be detectable. These phenomena and a zoo of astrophysical objects will be the targets of the next generation multi-national telescope facilities.

S. M. Bradbury

2001-01-30T23:59:59.000Z

337

First Results from the Swift UVOT  

E-Print Network (OSTI)

We review some of the initial data from the UVOT telescope on the Swift observatory. Statistics based on about six months of data suggest a dark burst fraction of about 50% when combining both UVOT and ground-based observations. There is evidence that some bursts have a large gamma-ray efficiency, which may be due to strong magnetic fields in their ejecta. The bright GRB050525A shows behaviour broadly consistent with expectations from the simple fireball model for bursts, including evidence for a reverse shock component in the UVOT data, and an achromatic break in decay slope indicative of a jet break. Other bursts observed with Swift have a shallow decay initially which is difficult to reconcile with the simple model. Replenishment of the forward shock energy by continued ejection of material from the central engine, or initial injection of material with a range of velocities, offers a potential explanation. In the case of the XRF050406 an initially rising optical afterglow flux followed by a shallow decay m...

Mason, K O; Roming, P W A

2005-01-01T23:59:59.000Z

338

Initial Results from the ANITA 2006-2007 Balloon Flight  

SciTech Connect

We report initial results of the Antarctic Impulsive Transient Antenna (ANITA) 2006-2007 Long Duration Balloon flight, which searched for evidence of the flux of cosmogenic neutrinos. ANITA flew for 35 days looking for radio impulses that might be due to the Askaryan effect in neutrino-induced electromagnetic showers within the Antarctic ice sheets. In our initial high-threshold robust analysis, no neutrino candidates are seen, with no physics background. In a non-signal horizontal-polarization channel, we do detect 6 events consistent with radio impulses from extensive air showers, which helps to validate the effectiveness of our method. Upper limits derived from our analysis now begin to eliminate the highest cosmogenic neutrino models.

Gorham, P.W.; /Hawaii U.; Allison, P.; /Hawaii U.; Barwick, S.W.; /UC, Irvine; Beatty, J.J.; /Ohio State U.; Besson, D.Z.; /Kansas U.; Binns, W.R.; /Washington U., St. Louis; Chen, C.; /SLAC; Chen, P.; /SLAC; Clem, J.M.; /Delaware U.; Connolly, A.; /University Coll. London; Dowkontt, P.F.; /Washington U., St. Louis; DuVernois, M.A.; /Minnesota U.; Field, R.C.; /SLAC; Goldstein, D.; /UC, Irvine; Goodhue, A.; /UCLA; Hast, C.; /SLAC; Hebert, C.L.; /Hawaii U.; Hoover, S.; /UCLA; Israel, M.H.; /Washington U., St. Louis; Kowalski, J.; /Hawaii U.; Learned, J.G.; /Hawaii U. /Caltech, JPL /Hawaii U. /Minnesota U. /Hawaii U. /Ohio State U. /Hawaii U. /Hawaii U. /UC, Irvine /Taiwan, Natl. Taiwan U. /Caltech, JPL /SLAC /University Coll. London /Ohio State U. /SLAC /Hawaii U. /Hawaii U. /Hawaii U. /UCLA /Delaware U. /Hawaii U. /SLAC /Taiwan, Natl. Taiwan U. /UC, Irvine

2011-11-16T23:59:59.000Z

339

Numerical Computation of Human Dose Due to 50/60-Hz Fields: Data Set Documentation  

Science Conference Proceedings (OSTI)

The University of Victoria electric and magnetic fields (EMF) dosimetry data set contains calculated internal electrical parameters in anatomically correct human models resulting from exposures to electric fields, magnetic fields, and contact currents. The data set provides descriptive statistics for dose to specific organs and tissues resulting from a variety of exposure scenarios.

2001-11-29T23:59:59.000Z

340

Impact of lattice geometry distortion due to ageing on selected physics parameters of a CANDU reactor  

SciTech Connect

In this paper, results related to a limited scope assessment of the geometry-distortion-induced effects on key reactor physics parameters of a CANDU reactor are discussed. These results were generated by simulations using refined analytical methods and detailed modeling of CANDU reactor core with aged lattice cell geometry. (authors)

Tholammakkil, J. [Canadian Nuclear Safety Commission, P.O. Box 1046, Ottawa, Ont. (Canada); Rahnema, F. [Georgia Inst. of Technology, Atlanta, GA 30332-0405 (United States); Ilas, G. [Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831 (United States); Stamm'ler, R. [Studsvik Scandpower AS, P.O. Box 15, NO-2027 Kjeller (Norway); Khotylev, V.; Serghiuta, D. [Canadian Nuclear Safety Commission, P.O. Box 1046, Ottawa, Ont. (Canada)

2006-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "qualitative result due" 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

Plans, Implementation, and Results | Department of Energy  

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

About the Program » Plans, Implementation, and Results About the Program » Plans, Implementation, and Results Plans, Implementation, and Results October 8, 2013 - 1:23pm Addthis The U.S. Department of Energy's Federal Energy Management Program (FEMP) works with key individuals to accomplish energy change within organizations by bringing expertise from all levels of project and policy implementation to enable Federal agencies to meet energy-related goals and provide energy leadership to the country. This Web page includes links to documents that support the office management process and the results and public benefits that derive from it. Overview Learn more about this EERE office. Key Office Documents FEMP Overview Legislative and Executive Guidance FEMP Laws and Regulations Structure and Key Contacts FEMP Contacts

342

Norcal Prototype LNG Truck Fleet: Final Results  

SciTech Connect

U.S. DOE and National Renewable Energy Laboratory evaluated Norcal Waste Systems liquefied natural gas (LNG) waste transfer trucks. Trucks had prototype Cummins Westport ISXG engines. Report gives final evaluation results.

Not Available

2004-07-01T23:59:59.000Z

343

Ordering the attributes of query results  

Science Conference Proceedings (OSTI)

There has been a great deal of interest in the past few years on ranking of results of queries on structured databases, including work on probabilistic information retrieval, rank aggregation, and algorithms for merging of ordered lists. In many applications, ...

Gautam Das; Vagelis Hristidis; Nishant Kapoor; S. Sudarshan

2006-06-01T23:59:59.000Z

344

2009 Annual Employee Survey Results for  

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

9 Annual Employee Survey Results for 9 Annual Employee Survey Results for Department of Energy All Respondents 1) Interpretation of Results: The agency's overall results were favorable and showed the agency improving in most areas. The agency remained strong in areas pertaining to Job Satisfaction and Talent Management. The agency's biggest challenge is in Performance Culture. This is an area that the agency has been working on for several years and will continue to do so in 2010. Scores related to Leadership/Supervisory dimension showed a substantial decrease from the 2008 Federal Human Capital Survey. This may stem from the stress related to the major transition in the Administration's leadership and the lack of management stability during this process. This is an area that the agency will be closely reviewing following the 2010 Employee Viewpoint Survey

345

Wind Program: Program Plans, Implementation, and Results  

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

Wind Program Wind Program HOME ABOUT RESEARCH & DEVELOPMENT DEPLOYMENT FINANCIAL OPPORTUNITIES INFORMATION RESOURCES NEWS EVENTS EERE » Wind Program » About Key Activities Plans, Implementation, & Results Budget Contacts Plans, Implementation, and Results Here you'll find an overview of the Wind Program and links to its program planning, implementation, and results documents. This list summarizes the program's wind power research, development, and demonstration activities. Read more about: Overview Learn more about this EERE Office. Plans Discover the plans, budgets, and analyses that set the direction of office priorities and activities. Implementation Find out how the office controls, implements, and adjusts its plans and manages its activities. Results Learn about the technological, commercial, and other outputs and outcomes

346

Plans, Implementation and Results | Department of Energy  

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

Plans, Implementation and Results Plans, Implementation and Results Plans, Implementation and Results The Office of Energy Efficiency and Renewable Energy (EERE) works to strengthen the United States' energy security, environmental quality, and economic vitality in public-private partnerships. It supports this goal through (1) enhancing energy efficiency and productivity; and (2) bringing clean, reliable and affordable energy technologies to the marketplace. This area of the EERE website provides direct links to hundreds of pages and documents that collectively demonstrate and explain: How EERE and its programs make their plans How they implement, control and adjust these plans, and The technological, commercial and other outputs and outcomes that result from the public funds appropriated to the Office and its programs

347

Fermilab Today | Results for the Frontiers | 2013  

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

2013 CMS: Higgs and top quarks together March 21, 2013 CDF: CDF finalizes combined Higgs boson results March 15, 2013 MINOS: Does matter matter for neutrino flavor? March 14,...

348

Overvoltages in Underground Systems, Phase 2 Results  

Science Conference Proceedings (OSTI)

There are benefits from research to understand how lightning enters and propagates through the electrical system and improved methods to protect both the distribution and transmission system and customer facilities. This report provides research results to date.

1998-12-11T23:59:59.000Z

349

Global Hydroclimatological Teleconnections Resulting from Tropical Deforestation  

Science Conference Proceedings (OSTI)

Past studies have indicated that deforestation of the Amazon basin would result in an important rainfall decrease in that region but that this process had no significant impact on the global temperature or precipitation and had only local ...

Roni Avissar; David Werth

2005-04-01T23:59:59.000Z

350

Latest results from OBELIX on hadron spectroscopy  

Science Conference Proceedings (OSTI)

During the last year OBELIX has produced final results on some selected annihilation channels and has studied new experimental approaches for the selection of the initial state quantum number of the (N?N) annihilation

The OBELIX Collaboration

1995-01-01T23:59:59.000Z

351

2008 B20 Survey Results (Presentation)  

DOE Green Energy (OSTI)

Describes results of a sample survey of the quality of B20, a biodiesel blend, collected from U.S. public pumps and fleets as part of a joint effort by NREL, the NBB, and engine manufacturers.

Alleman, T. L.; McCormick, R. L.

2009-02-02T23:59:59.000Z

352

QCD Thermodynamics on the Lattice: Recent Results  

E-Print Network (OSTI)

I give a brief introduction to the goals, challenges, and technical difficulties of lattice QCD thermodynamics and present some recent results from the HotQCD collaboration for the crossover temperature, equation of state, and other observables.

Carleton DeTar

2010-12-31T23:59:59.000Z

353

Annual Energy Outlook 2000 - Model Results & Report  

Gasoline and Diesel Fuel Update (EIA)

Forecasts Summary of the AEO2001 Cases Scenarios - Appendix Table G1 bullet1.gif (843 bytes) Model Results (Formats - PDF, ZIP) - Appendix Tables - Reference Case - 1998 to 2020...

354

Annual Energy Outlook 1999 - Model Results & Report  

Gasoline and Diesel Fuel Update (EIA)

results.gif (6669 bytes) AEO99 Report Available Formats Entire AEO Report as Printed (PDF, 2.2MB) Overview (PDF, 132KB) Legislation and Regulations (PDF, 96KB) Issues in Focus...

355

Test results of early photovoltaic concentrating collectors  

SciTech Connect

Several passively and actively cooled photovoltaic concentrating collectors built during the period 1976 to 1979 have been tested. The tests provide information on the performance characteristics of these collectors. The results of the tests are summarized.

Gerwin, H.J.; Pritchard, D.A.

1981-11-01T23:59:59.000Z

356

The Lake Baikal neutrino experiment: selected results  

E-Print Network (OSTI)

We review the present status of the lake Baikal Neutrino Experiment and present selected physical results gained with the consequetive stages of the stepwise increasing detector: from NT-36 to NT-96. Results cover atmospheric muons, neutrino events, very high energy neutrinos, search for neutrino events from WIMP annihilation, search for magnetic monopoles and environmental studies. We also describe an air Cherenkov array developed for the study of angular resolution of NT-200.

BAIKAL Collaboration; V. Balkanov

2000-01-10T23:59:59.000Z

357

Research Spending and Results | Data.gov  

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

Research Spending and Results Research Spending and Results BusinessUSA Data/Tools Apps Challenges Let's Talk BusinessUSA You are here Data.gov » Communities » BusinessUSA » Data Research Spending and Results Dataset Summary Description Research.gov Research Spending and Results is an online, user-friendly platform to access and search detailed information about federally funded science and engineering research and education, giving the general public, the scientific community and Congress visibility into the results achieved with federally-funded research. Research awards are easily searchable by agency, awardee, award amount and date, state and congressional district (where award was made and the work is being performed), and key word such as a field of science. Information can be reviewed online or exported to various file formats, such as XML, CSV and XLS. Detailed information on federally funded research can be found for multiple agencies. Information provided for each award includes: * Award recipient (institution and researcher), * Award Amount and funds obligated to date, * Period of Performance, * State and Congressional district of where the award was made and where the work is being performed., * Award Abstract describing the research effort, * Citations of Journals Published as a result of the award

358

Beam losses due to abrupt crab cavity failures in the LHC  

SciTech Connect

A major concern for the implementation of crab crossing in a future High-Luminosity LHC (HL-LHC) is machine protection in an event of a fast crab-cavity failure. Certain types of abrupt crab-cavity amplitude and phase changes are simulated to characterize the effect of failures on the beam and the resulting particle-loss signatures. The time-dependent beam loss distributions around the ring and particle trajectories obtained from the simulations allow for a first assessment of the resulting beam impact on LHC collimators and on sensitive components around the ring. Results for the nominal LHC lattice is presented.

Baer, T.; Barranco, J.; Calaga, R.; Tomas, R.; Wenninger, B.; Yee, B.; Zimmermann, F.

2011-03-28T23:59:59.000Z

359

ANALYSIS OF DISTRIBUTION FEEDER LOSSES DUE TO ADDITION OF DISTRIBUTED PHOTOVOLTAIC GENERATORS  

SciTech Connect

Distributed generators (DG) are small scale power supplying sources owned by customers or utilities and scattered throughout the power system distribution network. Distributed generation can be both renewable and non-renewable. Addition of distributed generation is primarily to increase feeder capacity and to provide peak load reduction. However, this addition comes with several impacts on the distribution feeder. Several studies have shown that addition of DG leads to reduction of feeder loss. However, most of these studies have considered lumped load and distributed load models to analyze the effects on system losses, where the dynamic variation of load due to seasonal changes is ignored. It is very important for utilities to minimize the losses under all scenarios to decrease revenue losses, promote efficient asset utilization, and therefore, increase feeder capacity. This paper will investigate an IEEE 13-node feeder populated with photovoltaic generators on detailed residential houses with water heater, Heating Ventilation and Air conditioning (HVAC) units, lights, and other plug and convenience loads. An analysis of losses for different power system components, such as transformers, underground and overhead lines, and triplex lines, will be performed. The analysis will utilize different seasons and different solar penetration levels (15%, 30%).

Tuffner, Francis K.; Singh, Ruchi

2011-08-09T23:59:59.000Z

360

Lithium enhancement in X-ray binaries due to stellar rotation  

E-Print Network (OSTI)

We discuss the high lithium abundances in the secondary stars of X-ray binaries. We show that no lithium production in these stars is necessary, and that the abundances can be explained simply due to the tidally locked rotation of the stars, which lead naturally to slower lithium destruction rates. The differences in abundances of CVs' secondaries from those of LMXBs had previously been put forth as evidence that the compact object was related to the lithium abundance, but this scenario also accounts for the lower lithium abundances in the secondary stars in cataclysmic variable systems (CVs) than in low mass X-ray binaries (LMXBs), since these stars have typically lived much longer before becoming tidally locked short period systems. We point out that if this scenario is correct, then the globular cluster X-ray binaries' donor stars should, as a class, show less lithium enhancement relative to other stars of the same spectral type in the clusters than the field X-ray binaries' donor stars show.

T. J. Maccarone; P. G. Jonker; A. I. Sills

2005-03-09T23:59:59.000Z

Note: This page contains sample records for the topic "qualitative result due" 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

Physical property changes in hydrate-bearingsediment due to depressurization and subsequent repressurization  

SciTech Connect

Physical property measurements of sediment cores containing natural gas hydrate are typically performed on material exposed at least briefly to non-in situ conditions during recovery. To examine effects of a brief excursion from the gas-hydrate stability field, as can occur when pressure cores are transferred to pressurized storage vessels, we measured physical properties on laboratory-formed sand packs containing methane hydrate and methane pore gas. After depressurizing samples to atmospheric pressure, we repressurized them into the methane-hydrate stability field and remeasured their physical properties. Thermal conductivity, shear strength, acoustic compressional and shear wave amplitudes and speeds are compared between the original and depressurized/repressurized samples. X-ray computed tomography (CT) images track how the gas-hydrate distribution changes in the hydrate-cemented sands due to the depressurization/repressurization process. Because depressurization-induced property changes can be substantial and are not easily predicted, particularly in water-saturated, hydrate-bearing sediment, maintaining pressure and temperature conditions throughout the core recovery and measurement process is critical for using laboratory measurements to estimate in situ properties.

Kneafsey, Timothy; Waite, W.F.; Kneafsey, T.J.; Winters, W.J.; Mason, D.H.

2008-06-01T23:59:59.000Z

362

X-ray Absorption Due to Cold Gas in Cluster Cooling Cores  

E-Print Network (OSTI)

We have calculated the emergent X-ray properties for models of cluster cooling flows including the effects of accumulated cooled material. The opacity of this cooled gas can reduce the overall X-ray luminosity of the cooling flow, and values of Mdot based on these luminosities can underestimate the true value by factors of ~2. We find that accumulated cooled material can produce emergent surface brightness profiles much like those observed even for nearly homogeneous gas distributions. Consequently, much more of the gas may be cooling below X-ray emitting temperatures in the central regions of cooling flows (r cooling flows may have been underestimated. We show that distributed absorption in cooling flows produces a number of observable effects in the spectrum which may allow it to be differentiated from absorption due to gas in our Galaxy. These include a characteristic suppression of the continuum below ~2 keV, absorption features such as a redshifted O K-edge, and diminished intensity of resonance emission lines. Spectra including the effects of intrinsic absorption are not well fit by foreground absorbing models. Attempting to fit such models to the spatially resolved spectra can lead to underestimates of the true absorbing column by factors of 3-20. Fits to integrated spectra of the entire cooling flow region can either underestimate or overestimate the mass of the absorbing gas depending on the specifics of the model. We discuss the potential detection of these effects with AXAF, XMM, and Astro-E.

Michael W. Wise; Craig L. Sarazin

1999-03-09T23:59:59.000Z

363

Induced Current Characteristics Due to Laser Induced Plasma and Its Application to Laser Processing Monitoring  

Science Conference Proceedings (OSTI)

In laser processing, suitable conditions for laser and gas play important role in ensuring a high quality of processing. To determine suitable conditions, we employed the electromagnetic phenomena associated with laser plasma generation. An electrode circuit was utilised to detect induced current due to the fast electrons propelled from the material during laser material processing. The characteristics of induced current were examined by changing parameters such as supplied voltage, laser pulse energy, number of laser shots, and type of ambient gas. These characteristics were compared with the optical emission characteristics. It was shown that the induced current technique proposed in this study is much more sensitive than the optical method in monitoring laser processing, that is to determine the precise focusing condition, and to accurately determine the moment of completion of laser beam penetration. In this study it was also shown that the induced current technique induced by CW CO{sub 2} laser can be applied in industrial material processing for monitoring the penetration completion in a stainless steel plate drilling process.

Madjid, Syahrun Nur; Idris, Nasrullah [Department of Physics, Faculty of Mathematics and Natural Sciences, Syiah Kuala University, Banda Aceh (Indonesia); Kurniawan, Koo Hendrik [Research Center of Maju Makmur Mandiri Foundation, 40/80 Srengseng Raya, Jakarta 11630 (Indonesia); Kagawa, Kiichiro [Department of Physics, Faculty of Education and Regional Studies, University of Fukui, 9-1 Bunkyo 3-chome, Fukui 910-8507 (Japan)

2011-03-30T23:59:59.000Z

364

Acceleration of the Brewer–Dobson Circulation due to Increases in Greenhouse Gases  

Science Conference Proceedings (OSTI)

The acceleration of the Brewer–Dobson circulation under rising concentrations of greenhouse gases is investigated using the Whole Atmosphere Community Climate Model. The circulation strengthens as a result of increased wave driving in the ...

Rolando R. Garcia; William J. Randel

2008-08-01T23:59:59.000Z

365

Meteorological Impacts of Forest Mortality due to Insect Infestation in Colorado  

Science Conference Proceedings (OSTI)

Physical characteristics of forests and other ecosystems control land–atmosphere exchanges of water and energy and partly dictate local and regional meteorology. Insect infestation and resulting forest dieback can alter these characteristics and, ...

Christine Wiedinmyer; Michael Barlage; Mukul Tewari; Fei Chen

2012-02-01T23:59:59.000Z

366

Electromagnetic analysis of forces and torques on the ITER shield modules due to plasma disruption.  

SciTech Connect

An electromagnetic analysis is performed on the ITER shield modules under different plasma disruption scenarios using the OPERA-3d software. The modeling procedure is explained, electromagnetic torques are presented, and results of the modeling are discussed.

Kotulski, Joseph Daniel; Coats, Rebecca Sue; Pasik, Michael Francis; Ulrickson, Michael Andrew

2009-06-01T23:59:59.000Z

367

QUALITATIVE AND QUANTITATIVE DETERMINATION OF ...  

Science Conference Proceedings (OSTI)

Jul 20, 2012 ... Product In Stock ... The Mg- Prefil method can be applied in any casthouse or foundry, taking liquid metal samples at various stages of the ...

368

Help:FormattingResults | Open Energy Information  

Open Energy Info (EERE)

FormattingResults FormattingResults Jump to: navigation, search Contents 1 UL 2 Google Pie Charts 3 Outline 4 Calendar 5 Timeline 6 Gallery 7 Google Map 8 Geochart Ask Queries are used to pull results from semantic wiki content and can be displayed in a variety of formats. This page lists examples of the more common formats with the code used to generate them and when applicable, links to eternal help documents describing the options available for each format. When writing an ask query, one specifies the format with |format=. The examples below contain the ask query code used to generate them, including the format declaration. UL BioPower Atlas and BioFuels Atlas Biomass Energy Data Book CLIMWAT 2.0 CROPWAT 8.0 {{#ask:[[Category:Tools]] [[ProgramTopics::Resource assessment]] [[ProgramResources::Dataset]]

369

2008/2009 NERSC User Survey Results  

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

8/2009 User Survey Results 8/2009 User Survey Results Show All | 1 2 3 4 5 ... 9 | Next » 2008/2009 User Survey Results Table of Contents Response Survey Respondent Demographics Overall Satisfaction and Importance All Satisfaction and Importance Ratings Hardware Resources Software HPC Consulting Services and Communications Comments Response Survey Many thanks to the 421 users who responded to this year's User Survey. The response rate is comparable to last year's and both are significantly increased from previous years: 77.4 percent of users who had used more than 250,000 XT4-based hours when the survey opened responded 36.6 percent of users who had used between 10,000 and 250,000 XT4-based hours responded The overall response rate for the 3,134 authorized users during the survey period was 13.4%.

370

Climate VISION: Private Sector Initiatives: Aluminum: Results  

Office of Scientific and Technical Information (OSTI)

Results Results The Aluminum Association and the federal government have document progress in the Climate Vision program. The results are measured by metrics developed by the industry, in partnership with the government, and reported. Progress will also be tracked under the umbrella of the Voluntary Aluminum Industrial Partnership website. Please check back on this website and the Energy Information Agency website for updates. In 2005, the industry achieved the goal set for 2010. A 56 percent reduction in direct process emissions per ton of production, including combined reductions in PFC's and CO2, exceeds the 53 percent commitment for 2010. Further progress is expected in the industry, however complications from high power costs and potential curtailments make predictions for further reductions

371

NREL: PVWatts - How to Interpret PVWatts Results  

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

Interpret PVWatts(tm) Results Interpret PVWatts(tm) Results The monthly and yearly energy production estimates are modeled using the selected photovoltaic (PV) system parameters and weather data that are typical or representative of long-term averages. For reference or comparison with local information, the solar radiation values modeled for the PV array are included in the performance results. Because weather patterns vary from year to year, the values in the tables are better indicators of long-term performance than of performance for a particular month or year. PV performance is largely proportional to the solar radiation received, which may vary from the long-term average by 30% monthly and 10% yearly. Solar radiation variance for a specific location can be evaluated by examining the tables in the Solar Radiation Data Manual

372

2007/2008 NERSC User Survey Results  

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

7/2008 User Survey Results 7/2008 User Survey Results Show All | 1 2 3 4 5 ... 10 | Next » 2007/2008 User Survey Results Table of Contents Response Summary Overall Satisfaction and Importance All Satisfaction, Importance and Usefulness Ratings Hardware Resources Software Visualization and Data Analysis HPC Consulting Services and Communications Web Interfaces Comments about NERSC Response Summary Many thanks to the 467 users who responded to this year's User Survey. The response rate has significantly increased from previous years: 70 percent of users who had used more than 1 million MPP hours when the survey opened responded 43 percent of users who had used between 10,000 and 1 million MPP hours responded The overall response rate for the 2,804 authorized users during the survey period was 16.3%.

373

MiniBooNE Oscillation Results 2011  

SciTech Connect

The MiniBooNE neutrino oscillation search experiment at Fermilab has recently updated results from a search for {bar {nu}}{sub {mu}} {yields} {bar {nu}}{sub e} oscillations, using a data sample corresponding to 8.58 x 10{sup 20} protons on target in anti-neutrino mode. This high statistics result represent an increase in statistics of 52% compared to result published in 2010. An excess of 57.7 {+-} 28.5 events is observed in the energy range 200 MeV < E{sub {nu}} < 3000 MeV. The data favor LSND-like {bar {nu}}{sub {mu}} {yields} {bar {nu}}{sub e} oscillations over a background only hypothesis at 91.1% confidence level in the energy range 475 < E{sub {nu}} < 3000 MeV.

Djurcic, Zelimir

2012-01-01T23:59:59.000Z

374

Skill in an Inversion Solution: CONVEX-91 Hydrographic Results Compared with ADCP Measurements  

Science Conference Proceedings (OSTI)

This paper demonstrates skill in simple linear inversion solutions in two ways: first, qualitatively, by showing that the inversion method can put in place a known feature of the deep circulation of the study region when initialized with ...

Sheldon Bacon

1994-12-01T23:59:59.000Z

375

Tracer Developments: Results of Experimental Studies  

DOE Green Energy (OSTI)

Tracers can be used to monitor the movement of groundwaters and geothermal fluids and they can be used as a reference to quantify changes in fluid chemistry as a result of injection. Despite their potential importance to the geothermal operator, very few tracers are presently available and of those that are, little is known about their stability or behavior at the elevated temperatures that typify resources capable of electric power generation. During the past two years the University of Utah Research Institute has been involved in tracer research and testing, largely through the DOE Injection Research Program. The purpose of this paper is to summarize the results of these laboratory and field investigations.

Adams, M.C.; Ahn, J.H.; Bentley, H.; Moore, J.N.; Veggeberg, S.

1986-01-21T23:59:59.000Z

376

Physics results from dynamical overlap fermion simulations  

E-Print Network (OSTI)

I summarize the physics results obtained from large-scale dynamical overlap fermion simulations by the JLQCD and TWQCD collaborations. The numerical simulations are performed at a fixed global topological sector; the physics results in the theta-vacuum is reconstructed by correcting the finite volume effect, for which the measurement of the topological susceptibility is crucial. Physics applications we studied so far include a calculation of chiral condensate, pion mass, decay constant, form factors, as well as (vector and axial-vector) vacuum polarization functions and nucleon sigma term.

Shoji Hashimoto

2008-11-08T23:59:59.000Z

377

results and benefits... The Bittern Line Carbon  

E-Print Network (OSTI)

results and benefits... The Bittern Line Carbon Neutral Stations Transport Regeneration Ltd. June 2008 c a s e s t u d yCRed carbon reduction Project Summary Our client, Transport Regeneration Ltd., aims to make nine stations on the Bittern Line between Norwich and Sheringham carbon neutral

Everest, Graham R

378

ALCF-2010UserSurveyResultsReport  

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

Survey Results Page 1 of 36 Argonne L eadership C omputing F acility 2010 U ser S urvey R esults Methodology: Two v ersions o f t he A nnual U ser S urvey w ere c reated a nd c...

379

Experimental results from the small isochronous ring  

DOE Green Energy (OSTI)

The Small Isochronous Ring (SIR) is a compact, low-energy storage ring designed to investigate the beam dynamics of high-intensity isochronous cyclotrons and synchrotrons at the transition energy. The ring was developed at Michigan State University (MSU) and has been operational since December 2003. It stores 20 keV hydrogen beams with a peak current of 10-20 microamps for up to 200 turns. The transverse and longitudinal profiles of extracted bunches are measured with an accuracy of approximately 1 mm. The high accuracy of the measurements makes the experimental data attractive for validation of multi-particle space charge codes. The results obtained in the ring show a fast growth of the energy spread induced by the space charge forces. The energy spread growth is accompanied by a breakup of the beam bunches into separated clusters that are involved in the vortex motion specific to the isochronous regime. The experimental results presented in the paper show a remarkable agreement with simulations performed with the code CYCO. In this paper, we discuss specifics of space charge effects in the isochronous regime, present results of experiments in SIR, and conduct a detailed comparison of the experimental data with results of simulations.

Eduard Pozdeyev

2005-05-01T23:59:59.000Z

380

Milestone M4900: Simulant Mixing Analytical Results  

SciTech Connect

This report addresses Milestone M4900, ''Simulant Mixing Sample Analysis Results,'' and contains the data generated during the ''Mixing of Process Heels, Process Solutions, and Recycle Streams: Small-Scale Simulant'' task. The Task Technical and Quality Assurance Plan for this task is BNF-003-98-0079A. A report with a narrative description and discussion of the data will be issued separately.

Kaplan, D.I.

2001-07-26T23:59:59.000Z

Note: This page contains sample records for the topic "qualitative result due" 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

Irrigation customer survey procedures and results  

SciTech Connect

This report describes the statistical procedures, administrative procedures, and results of a telephone survey designed to collect primary data from individuals in the Pacific Northwest region who use electricity in irrigating agricultural crops. The project was intended to collect data useful for a variety of purposes, including conservation planning, load forecasting, and rate design.

Harrer, B.J.; Johnston, J.W.; Dase, J.E.; Hattrup, M.P.; Reed, G.

1987-03-01T23:59:59.000Z

382

Experimental results of calcine dissolution studies performed during FY-94,95  

Science Conference Proceedings (OSTI)

Calcine dissolution studies were performed in FY-94,95 in order to extend the knowledge of dissolution and to obtain information necessary for scale-up design and operation. Experiments reported in this document were performed with non-radioactive and actual calcines to generate qualitative data regarding: (a) calcine dissolution rates, (b) undissolved solids settling characteristics, (c) undissolved solids heel formation, and (d) chemical treatments for undissolved solids heel dissolution. The goal of this work was to achieve complete calcine dissolution, or to determine conditions that would result in the maximum calcine dissolution. Small scale laboratory experiments (test-tube dissolutions) and a bench scale dissolver set-up were used in the effort. Results from this work show the bulk of the undissolved solids to settle at a rate of >9 inches per second when the baseline dissolution parameters are used. Baseline dissolution parameters were 100 grams of calcine being dissolved in 1 L of 5 M HNO{sub 3} at > 90 C while the solution is being vigorously and constantly mixed. This work also verified that dissolution is most complete when performed with aggressive mixing. Sequential dissolutions performed with non-radioactive and actual calcine indicate that little undissolved solids heel build-up is expected, and this small heel can be further dissolved by increasing the dissolution time or by adding fresh nitric acid.

Brewer, K.N.; Olson, A.L.; Roesener, W.S.; Tonso, J.L.

1997-09-01T23:59:59.000Z

383

Two-dimensional nonlinear finite element analysis of well damage due to reservoir compaction, well-to-well interactions, and localization on weak layers  

Science Conference Proceedings (OSTI)

In this paper the authors present the results of a coupled nonlinear finite element geomechanics model for reservoir compaction and well-to-well interactions for the high-porosity, low strength diatomite reservoirs of the Belridge field near Bakersfield, California. They show that well damage and failures can occur under the action of two distinct mechanisms: shear deformations induced by pore compaction, and subsidence, and shear deformations due to well-to-well interactions during production or water injection. They show such casting damage or failure can be localized to weak layers that slide or slip under shear due to subsidence. The magnitude of shear displacements and surface subsidence agree with field observations.

Hilbert, L.B. Jr. [Univ. of California, Berkeley, CA (United States); Fredrich, J.T. [Sandia National Labs., Albuquerque, NM (United States); Bruno, M.S. [Terralog Technologies USA, Inc., Arcadia, CA (United States); Deitrick, G.L.; Rouffignac, E.P. de [Shell Exploration and Production Co., Houston, TX (United States)

1996-05-01T23:59:59.000Z

384

Planned Publications Resulting from CARINA Project  

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

Resulted from CARINA Project Resulted from CARINA Project Earth System Science Data (ESSD) Journal submitted CARINA publications (Special Issue). Falck, E. and Olsen, A.: Nordic Seas dissolved oxygen data in CARINA, Earth Syst. Sci. Data, 2, 123-131, doi:10.5194/essd-2-123-2010, 2010 Hoppema, M., Velo, A., van Heuven, S., Tanhua, T., Key, R. M., Lin, X., Bakker, D. C. E., Perez, F. F., Ríos, A. F., Lo Monaco, C., Sabine, C. L., Álvarez, M., and Bellerby, R. G. J.: Consistency of cruise data of the CARINA database in the Atlantic sector of the Southern Ocean, Earth Syst. Sci. Data, 1, 63-75, doi:10.5194/essd-1-63-2009, 2009. Jeansson, E., Olsson, K. A., Tanhua, T., and Bullister, J. L.: Nordic Seas and Arctic Ocean CFC data in CARINA, Earth Syst. Sci. Data, 2, 79-97, doi:10.5194/essd-2-79-2010, 2010.

385

Hydrogen Infrastructure Market Readiness Workshop: Preliminary Results  

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

Hydrogen Infrastructure Market Readiness Hydrogen Infrastructure Market Readiness Workshop: Preliminary Results Marc Melaina, PhD Hydrogen Technologies and Systems Center, NREL Distributed electronically to workshop attendees for review March 24, 2011 Goal of this presentation * This presentation is being disseminated to workshop attendees to convey the aggregate and "raw" feedback collected during the workshop * This feedback will be compiled in a final report * We would like to accomplish two things with these slides: 1. Share the preliminary results with participants 2. Get your feedback now on any corrections or omissions * We are still open to receiving additional feedback on the workshop topic, but will report it as having been received outside of the workshop if it is included in the final report

386

Fermilab | Science at Fermilab | Historic Results  

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

Historic Results Historic Results Experimental physicists at Fermilab are constantly at work systematically building our understanding of the laws of nature. The following are some of the hallmark discoveries they have made at the three frontiers of research in particle physics. Energy Frontier Art work - Top Quark Headlines Top Quark headlines Discovery of the Top Quark Physicists observed the first proton-antiproton collisions produced by the Tevatron on Oct. 13, 1985. Researchers at the CDF experiment and at DZero, which began operating later in 1992, used the Tevatron to study matter at ever smaller scales. On March 2, 1995, physicists at CDF and DZero announced the discovery of the top quark. Researchers in both collaborations had statistically proven observation of the top quark in collisions at their detectors.

387

Experimental Results of the Small Isochronous Ring  

DOE Green Energy (OSTI)

The Small Isochronous Ring (SIR) has been in operation since December 2003. The main purpose of this ring, developed and built at the National Superconducting Cyclotron Laboratory (NSCL) at Michigan State University (MSU), is to simulate the dynamics of intense beams in large accelerators. To observe the same effects, the beam power needed in SIR is orders of magnitude lower and the time scale is much longer than in the full scale machines. These differences simplify the design and operation of the accelerator. The ring measurements can be used to validate the results of space charge codes. After a variable number of turns, the injected hydrogen bunch (with energies up to 30 keV) is extracted and its longitudinal profile is measured using a fast Faraday cup. We present a summary of the design, the results of the first six months of operation and the comparison with selected space charge codes.

Felix Martin; Richard York; Juan Rodriguez; Eduard Pozdeyev

2004-06-01T23:59:59.000Z

388

Christmas in April Energy Teams Get Results  

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

Christmas in April Energy Teams Get Results Christmas in April Energy Teams Get Results Christmas in April logo July 2000 On April 29, volunteers from throughout the Bay Area visited 110 homes and public buildings such as schools and community centers, installing energy efficiency measures as part of Christmas in April's National Rebuilding Day. Twelve Berkeley Lab employees were among the volunteers, with four serving as Energy Team captains. The lifetime savings of all these efficiency measures works out to more than $78,000. The annual savings in all homes amount to 53,000 kWh, more than 11,000 therms of natural gas, and 500,000 gallons of water per year. For a second year, Lisa Gartland, a former post-doc in the Lab's Environmental Energy Technologies Division, now a private consultant on energy efficiency, organized the energy teams for local chapters of

389

Science at the petascale: Roadrunner results unveiled  

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

October » October » Roadrunner results unveiled Science at the petascale: Roadrunner results unveiled The Roadrunner system is now beginning its transition to classified computing to assure the safety, security, and reliability of the U.S. nuclear deterrent. October 26, 2009 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials.

390

OAK RIDGE NATIONAL LABORATORY RESULTS OF RADIOLOGICAL  

Office of Legacy Management (LM)

2 7% 2 7% d &y / 7 ORNL/TM- 10076 OAK RIDGE NATIONAL LABORATORY RESULTS OF RADIOLOGICAL ~-T-m -~=- -~ w-~- -"" * ,<.~- ~w&$UREMENTs: TAKEN IN THE NIAGARA FALLS, NEW YORK, AREA (NF002) J. K. Williams B. A. Berven ~.~~;:;-~~~ ~. -,' - ~~ 7, OPERATED BY MARTIN MARIDTA ENERGY SYSTEMS, INC, FOR THE UNITED STATES DEPARTMENT OF ENERGY --... ORNL/TM-10076 HEALTH AND SAFETY RESEARCH DIVISION Nuclear and Chemical Waste Programs (Activity No. AH 10 05 00 0; ONLWCOI) RESULTS OF RADIOLOGICAL MEASUREMENTS TAKEN IN THE NIAGARA FALLS, NEW YORK, AREA (NFOO2) J. K. Williams* and B. A. Berven *Biology Division Date Published November 1986 Investigation Team B. A. Berven - RASA Program Manager W. D. Cottrell - FUSRAP Project Director W. H. Shinpaugh - Field Survey Supervisor

391

Gamma ray astrophysics: the EGRET results  

E-Print Network (OSTI)

Cosmic gamma rays provide insight into some of the most dynamic processes in the Universe. At the dawn of a new generation of gamma-ray telescopes, this review summarizes results from the Energetic Gamma Ray Experiment Telescope (EGRET) on the Compton Gamma Ray Observatory, the principal predecessor mission studying high-energy photons in the 100 MeV energy range. EGRET viewed a gamma-ray sky dominated by prominent emission from the Milky Way, but featuring an array of other sources, including quasars, pulsars, gamma-ray bursts, and many sources that remain unidentified. A central feature of the EGRET results was the high degree of variability seen in many gamma-ray sources, indicative of the powerful forces at work in objects visible to gamma-ray telescopes.

D J Thompson

2008-11-05T23:59:59.000Z

392

An Overview of Recent Results from CLAS  

SciTech Connect

The unique capabilities of the CLAS detector to measure exclusive meson electroproduction off protons, with almost complete coverage of the final hadron phase space, has extended our knowledge of excited baryon structure. Consistent results from Np and Npp final states provide convincing evidence for reliable extraction of N* electrocouplings. Theoretical analyses of these results, using self-consistent dynamical calculations using an internal quark core and an external meson-baryon cloud suggest that meson-baryon dressing amplitudes need to be included. The meson-baryon dressing was already shown to be necessary to get agreement between calculations and data on the D resonance transition magnetic moment at low Q{sup 2}. Similarly, a new measurement of the transition magnetic moment for strange baryons also disagrees with quark models, suggesting the need for meson-baryon dressings. In the near future, the CLAS detector will be replaced with CLAS12, providing new high-precision data.

Kenneth Hicks

2011-12-01T23:59:59.000Z

393

Results from STAR Beam Energy Scan Program  

E-Print Network (OSTI)

Results from the Beam Energy Scan (BES) program conducted recently by STAR experiment at RHIC are presented. The data from Phase-I of the BES program collected in Au+Au collisions at center-of-mass energies (\\sqrt{s_{NN}}) of 7.7, 11.5, 19.6, 27, and 39 GeV cover a wide range of baryon chemical potential ?\\mu_B (100-400 MeV) in the QCD phase diagram. Several STAR results from the BES Phase-I related to "turn-o?ff" of strongly inter- acting quark-gluon plasma (sQGP) signatures and signals of QCD phase boundary are reported. In addition to this, an outlook is presented for the future BES Phase-II program and a possible ?fixed target program at STAR.

Michal Sumbera

2013-01-30T23:59:59.000Z

394

Information Solutions: Improving Search Results - Meta Tags  

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

Improving Search Results - Meta Tags Improving Search Results - Meta Tags Definition and Usage Metadata is data (information) about data. The tag provides metadata about the HTML document. Metadata will not be displayed on the page, but will be machine parsable. Meta elements are typically used to specify page description, keywords, author of the document, last modified, and other metadata. The metadata can be used by browsers (how to display content or reload page), search engines (keywords), or other web services. Tips and Notes Note: tags always goes inside the element. Note: Metadata is always passed as name/value pairs. Note: The content attribute MUST be defined if the name or the http-equiv attribute is defined. if none of these are defined, the content attribute

395

Microsoft Word - NERSC_Results.doc  

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

Reliability Results of NERSC Systems Reliability Results of NERSC Systems Akbar Mokhtarani, William Kramer, Jason Hick NERSC - LBNL Abstract In order to address the needs of future scientific applications for storing and accessing large amounts of data in an efficient way, one needs to understand the limitations of current technologies and how they may cause system instability or unavailability. A number of factors can impact system availability ranging from facility-wide power outage to a single point of failure such as network switches or global file systems. In addition, individual component failure in a system can degrade the performance of that system. This paper focuses on analyzing both of these factors and their impacts on the computational and storage systems at NERSC. Component failure data

396

Expert Meeting Report: Foundations Research Results  

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

Foundations Research Results Foundations Research Results C. Ojczyk, P. Huelman, and J. Carmody NorthernSTAR May 2013 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, subcontractors, or affiliated partners makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement,

397

The QCD phase diagram: Results and challenges  

Science Conference Proceedings (OSTI)

I review the progress made in recent years with functional methods in our understanding of the QCD phase diagram. In particular I discuss a renormalisation group approach to QCD at finite temperature and chemical potential. Results include the location of the confinement-deconfinement phase transition/cross-over and the chiral phase transition/cross-over lines, their nature as well as their interrelation, and thermodynamic observables.

Pawlowski, Jan M. [Institut fuer Theoretische Physik, Universitaet Heidelberg, Philosophenweg 16, 69120 Heidelberg (Germany); ExtreMe Matter Institute EMMI, GSI, Planckstr. 1, 64291 Darmstadt (Germany)

2011-05-23T23:59:59.000Z

398

LHCb Beam-Gas Imaging Results  

E-Print Network (OSTI)

The high resolution of the LHCb vertex detector makes it possible to perform precise measurements of vertices of beam-gas and beam-beam interactions and allows beam parameters such as positions, angles and widths to be determined. Using the directly measured beam properties the novel beam-gas imaging method is applied in LHCb for absolute luminosity determination. In this contribution we briefly describe the method and the preliminary results obtained with May 2010 data.

P. Hopchev

2011-07-07T23:59:59.000Z

399

Experimental Results on Advanced Rotary Desiccant Dehumidifiers  

E-Print Network (OSTI)

The Solar Energy Research Institute (SERI) has developed the Cyclic Test Facility (CTF) to develop and validate analytical methods for evaluating and predicting the performance of advanced rotary dehumidifiers. This paper describes the CTF, the dehumidifiers tested at the CTF, and the analytical methods used. The results reported provide an engineering data base and a design tool for evaluating rotary dehumidifiers for desiccant cooling applications.

Barathan, D.; Parsons, J. M.; MaClaine-Cross, I.

1986-01-01T23:59:59.000Z

400

Experimental results on advanced rotary desiccant dehumidifiers  

DOE Green Energy (OSTI)

The Solar Energy Research Institute (SERI) has developed the Cyclic Test Facility (CTF) to develop and validate analytical methods for evaluating and predicting the performance of advanced rotary dehumidifiers. This paper describes the CTF, the dehumidifiers tested at the CTF, and the analytical methods used. The results reported provide an engineering data base and a design tool for evaluating rotary dehumidifiers for desiccant cooling applications.

Bharathan, D.; Parsons, J.; Maclaine-cross, I.

1986-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "qualitative result due" 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.


401

Power Systems Development Facility: Test Results 2007  

Science Conference Proceedings (OSTI)

The U.S. Department of Energy (DOE) established the Power Systems Development Facility (PSDF) to fulfill two major objectives. The first was to develop a gasifier able to process low-rank fuels more efficiently and cost-effectively than currently available designs. This work resulted in the Transport Gasifier for which two commercial projects have been announced. The second objective was to develop high-temperature, high-pressure (HTHP) filtration to facilitate high-temperature syngas cleanup and, thereb...

2007-12-19T23:59:59.000Z

402

Recent Stirling engine loss - understanding results  

DOE Green Energy (OSTI)

For several years, the National Aeronautics and Space Administration and other US Government agencies have been funding experimental and analytical efforts to improve the understanding of Stirling thermodynamic losses. NASA`s objective is to improve Stirling engine design capability to support the development of new engines for space power. An overview of these efforts was last given at the 1988 IECEC. Recent results of this research are reviewed.

Tew, R.C.; Thieme, L.G.; Dudenhoefer, J.E.

1994-09-01T23:59:59.000Z

403

Survey of Wind Integration Study Results  

Science Conference Proceedings (OSTI)

The worldwide installed wind generation capacity increased by 25% during 2006 and reached almost 74,000 MW worldwide by the end of the year. This rapid growth is forecasted to continue for several years and result in large regional concentrations of wind generation capacity. An increasing amount of this wind energy is expected to come from offshore wind plants, especially in Europe. Because wind generation is an intermittent resource, and can not be dispatched, wind energy will affect the operation of th...

2007-03-19T23:59:59.000Z

404

Power Systems Development Facility: Test Results 2008  

Science Conference Proceedings (OSTI)

The United States Department of Energy (US DOE) established the Power Systems Development Facility (PSDF) to fulfill two major objectives. The first was to develop a gasifier able to process low-rank fuels more efficiently and cost-effectively than currently available designs. This work resulted in the Transport Gasifier for which two commercial projects have been announced. The second objective was to develop high-temperature, high-pressure (HTHP) filtration to facilitate high-temperature syngas cleanup...

2008-12-23T23:59:59.000Z

405

Experience report on software product line evolution due to market reposition  

Science Conference Proceedings (OSTI)

This paper presents the result of a study on the changes that occurred in the product line of a telecommunication equipments supplier because of the top management decision to change the product line's target market. The study examines six years of data ... Keywords: change, customer, designer, metrics, product line evolution, software product

Samuel A. Ajila; Antonio J. Bailetti; Razvan T. Dumitrescu

2004-11-01T23:59:59.000Z

406

Experimental demonstration of population extinction due to a predator-driven Allee effect  

E-Print Network (OSTI)

to be more indiscriminate in mate choice than females, as they usually have lower costs associated arise as a result of considerable costs associated with sperm pro- duction (Dewsbury 1982; Nakatsuru lighting (40WCoralife Day-Max Aquarium daylight) and fed Ocean Star International Inc. Spirulina Flake

Drake, John

407

Vertical displacement of the storage ring floor due to building distortion in the Photon Factory  

Science Conference Proceedings (OSTI)

The Light Source Building of the Photon Factory was found to distort so much as to induce the displacement of magnets in the storage ring. This resulted in drifting of the beam orbit. It was considered that the building was distorted by the variations of thermal stress

Tomotaro Katsura; Yutaka Fujita

1991-01-01T23:59:59.000Z

408

Air quality impacts due to construction of LWR waste management facilities  

SciTech Connect

Air quality impacts of construction activities and induced housing growth as a result of construction activities were evaluated for four possible facilities in the LWR fuel cycle: a fuel reprocessing facility, fuel storage facility, fuel fabrication plant, and a nuclear power plant. Since the fuel reprocessing facility would require the largest labor force, the impacts of construction of that facility were evaluated in detail.

1977-06-01T23:59:59.000Z

409

Hydroprocessing of solvent-refined coal: catalyst-screening results  

SciTech Connect

This report presents the results of screening four catalysts for hydroprocessing a 50 wt% mixture of SRC-I in a prehydrogenated creosote oil using a continuous flow unit. All catalysts employed were nickel-molybdates with varying properties. Reaction conditions were 2000 psi, 8 SCFH of hydrogen, volume hourly space velocity of 0.6 to 1.0 cc of SRC-I/hr/cc of catalyst, and 48 hours at 750/sup 0/F followed by 72 hours at 780/sup 0/F. The results indicate that the Shell 324 catalyst is best for hydrogenation of the feedstock but only marginally better than CB 81-44 for denitrogenation. The CB 81-44 catalyst may be slightly better than Shell 324 for the conversion of the +850/sup 0/F fraction of the feedstock. Desulfurization was uniformly high for all catalysts. Catalysts with a bimodal pore size distribution (i.e., SMR7-6137(1)) appear to be better for denitrogenation than unimodal catalysts (i.e., SMR7-6137(4)) containing the same metals loading. Unimodal catalysts (i.e., Shell 324) with higher metals loadings are comparable to bimodal catalysts (i.e., CB 81-44) containing less metals. The results indicate that pore size distribution and metals loading are important parameters for high activity. Catalysts with a unimodal pore volume distribution are capable of being restored to their original state, while bimodal ones experience a loss in surface area and pore volume and an increase in pellet density. This is attributed to the more efficient use of the interior surface area of the catalyst, which results in higher accumulation of coke and metals. Since coke can be removed via controlled oxidation, the irreversible loss is due to the higher concentrations of metals in the catalyst.

Stiegel, G.J.; Tischer, R.E.; Polinski, L.M.

1982-03-01T23:59:59.000Z

410

Results of a model for premixed combustion oscillation  

DOE Green Energy (OSTI)

Combustion oscillations are receiving renewed research interest due to the increasing application of lean premix (LPM) combustion to gas turbines. A simple, nonlinear model for premixed combustion is described in this paper. The model was developed to help explain specific experimental observations, and to provide guidance for the development of active control schemes based on nonlinear concepts. The model can be used to quickly examine instability trends associated with changes in equivalence ratio, mass flow rate, geometry, ambient conditions, and other pertinent factors. The model represents the relevant processes occurring in a fuel nozzle and combustor which are analogous to current LPM turbine combustors. Conservation equations for the fuel nozzle and combustor are developed from simple control volume analysis, providing a set of ordinary differential equations that can be solved on a personal computer. Combustion is modeled as a stirred reactor, with a bi- molecular reaction rate between fuel and air. A variety of numerical results and comparisons to experimental data are presented to demonstrate the utility of the model. Model results are used to understand the fundamental mechanisms which drive combustion oscillations, the effects of inlet air temperature and nozzle geometry on instability, and the effectiveness of active control schemes. The technique used in the model may also be valuable to understand oscillations in low NO{sub x} industrial burners.

Janus, M.C.; Richards, G.A.

1996-12-31T23:59:59.000Z

411

Results of a model for premixed combustion oscillations  

DOE Green Energy (OSTI)

Combustion oscillations are receiving renewed research interest due to increasing use of lean premix (LPM) combustion to gas turbines. A simple, nonlinear model for premixed combustion is described in this paper. The model was developed to help explain specific experimental observations and to provide guidance for development of active control schemes based on nonlinear concepts. The model can be used to quickly examine instability trends associated with changes in equivalence ratio, mass flow rate, geometry, ambient conditions, etc. The model represents the relevant processes occurring in a fuel nozzle and combustor which are analogous to current LPM turbine combustors. Conservation equations for the fuel nozzle and combustor are developed from simple control volume analysis, providing a set of ordinary differential equations that can be solved on a personal computer. Combustion is modeled as a stirred reactor, with a bimolecular reaction rate between fuel and air. A variety of numerical results and comparisons to experimental data are presented to demonstrate the utility of the model. Model results are used to understand the fundamental mechanisms which drive combustion oscillations, effects of inlet air temperature and nozzle geometry on instability, and effectiveness of open loop control schemes.

Janus, M.C.; Richards, G.A.

1996-09-01T23:59:59.000Z

412

White-tailed Deer Management Employee Survey Results and Path Forward  

E-Print Network (OSTI)

Population (80) Aerial Infrared Survey #12;5 Browse line caused by deer. Alteration of forest structure, dueWhite-tailed Deer Management Employee Survey Results and Path Forward Community Advisory Council at ~700 animals 1999 ­ Initial discussions for population management 2001 ­ Routine population surveys

Homes, Christopher C.

413

Result of recent weatherization retrofit projects  

Science Conference Proceedings (OSTI)

Pacific Gas and Electric (PG and E) and the Bonneville Power Administration (BPA) have conducted studies in their respective service areas in order to evaluate the cost-effectiveness of certain conservation retrofits. Twenty houses in Walnut Creek, California, underwent an infiltration reduction program, similar to house doctoring. Ten of these houses also received additional contractor-installed measures. BPA retrofitted 18 houses at its Midway substation in central Washington. Retrofits made to the houses included: attic and crawlspace insulation, foundation sill caulking, storm windows and doors, increased attic ventilation, and infiltration reduction. Energy consumption and weather data were monitored before and after each set of retrofits in both projects. Leakage measurements were made by researchers from the Energy Efficient Buildings Program using blower door fan pressurization, thereby allowing calculation of heating season infiltration rates. An energy use model correlating energy consumption with outside temperature was developed in order to determine improvements to the thermal conductance of the building envelope as a result of the retrofits. Energy savings were calculated based on the results of the energy use model. As a check on these findings, the Computerized Instrumented Residential Audit (CIRA) load calculation program developed at Lawrence Berkeley Laboratory provided a theoretical estimate of the savings resulting from the retrofits. At Midway, storm windows and doors were found to save the most energy. Because the Midway houses were not very leaky at the beginning of the experiment, the infiltration reduction procedures were less effective than expected. In the Walnut Creek project, the infiltration reduction procedures did decrease the leakiness of the test houses, but the effect upon energy savings was not great.

Dickinson, J.B.; Lipschutz, R.D.; O'Regan, B.; Wagner, B.S.

1982-07-01T23:59:59.000Z

414

Winter Infiltration Results from the FRTF Laboratory  

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

Florida Florida Winter Infiltration Results from the FRTF Laboratory Building America Stakeholders Meeting Austin, TX March 1-2, 2012 Philip Fairey FLORIDA SOLAR ENERGY CENTER - A Research Institute of the University of Central Florida Project Objectives Under side-by-side, in situ controlled conditions: * Measure effectiveness of various energy retrofit improvements * Produce high-quality empirical data set useful for home energy simulation verification. FLORIDA SOLAR ENERGY CENTER - A Research Institute of the University of Central Florida * Two identical side-by-side 1536 ft 2 , concrete block, slab-on-grade residences * Single pane fenestration, evenly distributed * No concrete block wall insulation

415

Ammonia Results Review for Retained Gas Sampling  

SciTech Connect

This report was prepared as part of a task supporting the deployment of the retained gas sampler (RGS) system in Flammable Gas Watch List Tanks. The emphasis of this report is on presenting supplemental information about the ammonia measurements resulting from retained gas sampling of Tanks 241-AW-101, A-101, AN-105, AN-104, AN-103, U-103, S-106, BY-101, BY-109, SX-106, AX-101, S-102, S-111, U-109, and SY-101. This information provides a better understanding of the accuracy of past RGS ammonia measurements, which will assist in determining flammable and toxicological hazards.

Mahoney, Lenna A.

2000-09-20T23:59:59.000Z

416

Recent Heavy Flavor Results at RHIC  

E-Print Network (OSTI)

We summarize the recent experimental results of heavy favor physics from the Relativistic Heavy Ion Collider (RHIC) in Brookhaven National Lab (BNL) at Long Island, New York, USA.We will discuss the directly reconstructed open charm mesons as well as electrons from heavy favor hadron decays. The charm and bottom quark production cross-sections have also been measured. We will also discuss JPsi and Upsilon states in p+p and heavy ion collisions. The studies described here were carried out and reported by the STAR and PHENIX collaborations at RHIC.

Wenqin Xu

2011-10-13T23:59:59.000Z

417

Wide Area Wind Field Monitoring Status & Results  

DOE Green Energy (OSTI)

Volume-scanning elastic has been investigated as a means to derive 3D dynamic wind fields for characterization and monitoring of wind energy sites. An eye-safe volume-scanning lidar system was adapted for volume imaging of aerosol concentrations out to a range of 300m. Reformatting of the lidar data as dynamic volume images was successfully demonstrated. A practical method for deriving 3D wind fields from dynamic volume imagery was identified and demonstrated. However, the natural phenomenology was found to provide insufficient aerosol features for reliable wind sensing. The results of this study may be applicable to wind field measurement using injected aerosol tracers.

Alan Marchant; Jed Simmons

2011-09-30T23:59:59.000Z

418

New Results on Standard Solar Models  

E-Print Network (OSTI)

We describe the current status of solar modelling and focus on the problems originated with the introduction of solar abundance determinations with low CNO abundance values. We use models computed with solar abundance compilations obtained during the last decade, including the newest published abundances by Asplund and collaborators. Results presented here make focus both on helioseismic properties and the models as well as in the neutrino fluxes predictions. We also discuss changes in radiative opacities to restore agreement between helioseismology, solar models, and solar abundances and show the effect of such modifications on solar neutrino fluxes.

Serenelli, Aldo M

2009-01-01T23:59:59.000Z

419

Enhancement of steam phase relative permeability due to phase transformation effects in porous media  

SciTech Connect

An experimental study of two-phase concurrent flow of steam and water was conducted and a set of relative permeability curves was obtained. These curves were compared with semi-empirical results and experimental results obtained by other investigators for two-phase, two-component flow (oil/gas; gas/water; gas/oil). It was found that while the wetting phase relative permeabilities were in good agreement, the relative permeability for the steam phase was considerably higher than the relative permeabilities of non-wetting phase (oil/water and non-condensing gas in gas/oil or gas/water) in two-component systems. This enhancement of steam relative permeability is attributed to phase transformation effects at the pore level in flow channels.

Verma, A.; Pruess, K.

1986-01-01T23:59:59.000Z

420

Influence of Alloy and Solidification Parameters on Grain Refinement in Aluminum Weld Metal due to Inoculation  

Science Conference Proceedings (OSTI)

The goals are: (1) Establish how much Ti/B grain refiner is need to completely refine aluminum weld metal for different alloys and different welding conditions; (2) Characterize how alloy composition and solidification parameters affect weld metal grain refinement; and (3) Apply relevant theory to understand observed behavior. Conclusions are: (1) additions of Ti/B grain refiner to weld metal in Alloys 1050, 5083, and 6082 resulted in significant grain refinement; (2) grain refinement was more effective in GTAW than LBW, resulting in finer grains at lower Ti content - reason is limited time available for equiaxed grain growth in LBW (inability to occlude columnar grain growth); (3) welding travel speed did not markedly affect grain size within GTAW and LBW clusters; and (4) application of Hunt CET analysis showed experimental G to be on the order of the critical G{sub CET}; G{sub CET} was consistently higher for GTAW than for LBW.

Schempp, Philipp [BAM, Germany; Tang, Z. [BIAS, Germany; Cross, Carl E. [Los Alamos National Laboratory; Seefeld, T. [BIAS, Germany; Pittner, A. [BAM, Germany; Rethmeier, M. [BAM, Germany

2012-06-28T23:59:59.000Z

Note: This page contains sample records for the topic "qualitative result due" from the National Library of EnergyBeta (NLEBeta).
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421

Measurements of Electron Thermal Transport due to Electron Temperature Gradient Modes in a Basic Experiment  

Science Conference Proceedings (OSTI)

Production and identification of electron temperature gradient modes have already been reported [X. Wei, V. Sokolov, and A. K. Sen, Phys. Plasmas 17, 042108 (2010)]. Now a measurement of electron thermal conductivity via a unique high frequency triple probe yielded a value of {chi}{sub perpendiculare} ranging between 2 and 10 m{sup 2}/s, which is of the order of a several gyrobohm diffusion coefficient. This experimental result appears to agree with a value of nonlocal thermal conductivity obtained from a rough theoretical estimation and not inconsistent with gyrokinetic simulation results for tokamaks. The first experimental scaling of the thermal conductivity versus the amplitude of the electron temperature gradient fluctuation is also obtained. It is approximately linear, indicating a strong turbulence signature.

Sokolov, V.; Sen, A. K. [Plasma Research Laboratory, Columbia University, New York, New York 10027 (United States)

2011-10-07T23:59:59.000Z

422

Beam Loss due to Foil Scattering in the SNS Accumulator Ring  

Science Conference Proceedings (OSTI)

In order to better understand the contribution of scattering from the primary stripper foil to losses in the SNS ring, we have carried out calculations using the ORBIT Code aimed at evaluating these losses. These calculations indicate that the probability of beam loss within one turn following a foil hit is ~1.8 10-8 , where is the foil thickness in g/cm2, assuming a carbon foil. Thus, for a typical SNS stripper foil of thickness = 390 g/cm2, the probability of loss within one turn of a foil hit is ~7.0 10-6. This note describes the calculations used to arrive at this result, presents the distribution of these losses around the SNS ring, and compares the calculated results with observed ring losses for a well-tuned production beam.

Holmes, Jeffrey A [ORNL; Plum, Michael A [ORNL

2012-01-01T23:59:59.000Z

423

Scale formation at various locations in a geothermal operation due to injection of imported waters  

Science Conference Proceedings (OSTI)

The injection of waters that are not native to a geothermal formation generates various physical and chemical problems. The major chemical problem resulting from such injections is the formation of sulfate scales (particularly CaSO4, BaSO4 and SrSO4) at various locations starting from the injection well through the production well to the surface facilities of any geothermal operation. One of the ways to prevent this type of scale formation is by reducing the sulfate concentration of the injection waters. The effect of sulfate deionization on scale formation at various locations of the geothermal operations is studied. Some experimental results on the CaSO4 scale formation in porous media upon heating an injection water with and without addition of scale inhibitors are also given.

Vetter, O.J.; Kandarpa, V.

1982-06-22T23:59:59.000Z

424

Preliminary results from an advanced lighting controlstestbed  

SciTech Connect

Preliminary results from a large-scale testbed of advanced lighting control technologies at the Phillip Burton Federal Building at 450 Golden Gate Ave. in San Francisco are presented. The first year objective of this project is to determine the sustainable energy savings and cost-effectiveness of different lighting control technologies compared to a portion of the building where only minimal controls are installed. The paper presents the analyzed results from six months of tests focused on accurately characterizing the energy savings potential of one type of daylight-linked lighting controls compared to the lighting in similar open-planned areas without dimming controls. After analyzing a half year;s data, we determined that the annual energy savings for this type of daylight- linked controls was 41% and 30% for the outer rows of lights on the South and North sides of the building, respectively. The annual energy savings dropped to 22% and 16% for the second row of lights for the South and North, respectively, and was negligible for the third rows of lights.

Avery, Douglas; Jennings, Judity; Rubinstein, Francis

1998-03-01T23:59:59.000Z

425

HARVESTING EMSP RESEARCH RESULTS FOR WASTE CLEANUP  

Science Conference Proceedings (OSTI)

The extent of environmental contamination created by the nuclear weapons legacy combined with expensive, ineffective waste cleanup strategies at many U.S. Department of Energy (DOE) sites prompted Congress to pass the FY96 Energy and Water Development Appropriations Act, which directed the DOE to: ''provide sufficient attention and resources to longer-term basic science research, which needs to be done to ultimately reduce cleanup costs'', ''develop a program that takes advantage of laboratory and university expertise, and'' ''seek new and innovative cleanup methods to replace current conventional approaches which are often costly and ineffective.'' In response, the DOE initiated the Environmental Management Science Program (EMSP)-a targeted, long-term research program intended to produce solutions to DOE's most pressing environmental problems. EMSP funds basic research to lower cleanup cost and reduce risk to workers, the public, and the environment; direct the nation's scientific infrastructure towards cleanup of contaminated waste sites; and bridge the gap between fundamental research and technology development activities. EMSP research projects are competitively awarded based on the project's scientific, merit coupled with relevance to addressing DOE site needs. This paper describes selected EMSP research projects with long, mid, and short-term deployment potential and discusses the impacts, focus, and results of the research. Results of EMSP research are intended to accelerate cleanup schedules, reduce cost or risk for current baselines, provide alternatives for contingency planning, or provide solutions to problems where no solutions exist.

Guillen, Donna Post; Nielson, R. Bruce; Phillips, Ann Marie; Lebow, Scott

2003-02-27T23:59:59.000Z

426

Results of LWR snubber aging research  

Science Conference Proceedings (OSTI)

This report describes the aging research results and recommendations for snubbers used in commercial nuclear power plants. Snubbers are safety-related devices used to restrain undesirable dynamic loads at various piping and equipment locations in nuclear power plants (NPPs). Each snubber must accommodate a plant's normal thermal movements and must be capable of restraining the maximum off-normal dynamic loads, such as a seismic event or a transient, postulated for its specific location. The effects of snubber aging and the factors that contribute to the degradation of their safety performance need to be better understood. Thus, Phase II of Nuclear Plant Aging Research was conducted to enhance the understanding of snubber aging and its consequences. Pacific Northwest Laboratory staff and their subcontractors, Lake Engineering and Wyle Laboratories, visited eight sites (encompassing thirteen plants) to conduct interviews with NPP staff and to collect data on snubber aging, testing, and maintenance. The Phase II research methodology, evaluation, results, conclusions, and recommendations are described in the report. Effective methods for service-life monitoring of snubbers are included in the recommendations.

Brown, D P [Lake Engineering Co., Greenville, RI (United States); Werry, E V; Blahnik, D E [Pacific Northwest Lab., Richland, WA (United States)

1992-05-01T23:59:59.000Z

427

The string of variable density: Further results  

Science Conference Proceedings (OSTI)

We analyze the problem of calculating the solutions and the spectrum of a string with arbitrary density and fixed ends. We build a perturbative scheme which uses a basis of WKB-type functions and obtain explicit expressions for the eigenvalues and eigenfunctions of the string. Using this approach we show that it is possible to derive the asymptotic (high energy) behavior of the string, obtaining explicit expressions for the first three coefficients (the first two can also be obtained with the WKB method). Finally, using an iterative approach we also obtain analytical expressions for the low energy behavior of the eigenvalues and eigenfunctions of a string with rapidly oscillating density, recovering (in a simpler way) results in the literature. - Highlights: > We devise a perturbative approach to finding the modes of a string with arbitrary density. > We obtain explicitly the first three coefficients of the asymptotic high energy expansion. > We apply our findings to a series of examples, obtaining both analytical and numerical results.

Amore, Paolo, E-mail: paolo.amore@gmail.com

2011-09-15T23:59:59.000Z

428

2007 NWFSC Tidal Freshwater Genetics Results  

SciTech Connect

Genetic Analysis of Juvenile Chinook Salmon for inclusion in 'Ecology of Juvenile Salmonids in Shallow Tidal Freshwater Habitats in the Vicinity of the Sandy River Delta, lower Columbia River, 2007. Final report submitted to the Bonneville Power Administration, Contract DE-AC05-76RLO1830.' Genotypic data were collected for 108 Chinook salmon and used in the genetic stock identification analysis. Results of the mixture analysis are presented in Table 1. Percentage estimates for four genetic stock groups (West Cascade Tributary Fall, Willamette River Spring, Deschutes River Fall, and Upper Columbia River Summer/Fall) ranged from 11% to 43%, all with non-zero lower 95% confidence intervals. Small contributions were also estimated for the West Cascade Tributary Spring (3%) and Snake River Fall (6%) stock groups. Results of individual fish probability assignments were summed by collection date (Figure 1) and site (Figure 2). Assignment probabilities for the most likely stock group for each individual ranged from 0.51 to 1.00 with approximately 60% of the assignments greater than 0.90 (data not shown). Nearly all of the low probability assignments were fish with assignments split between the Deschutes River Fall and Upper Columbia River Summer/Fall groups.

David Teel

2008-03-18T23:59:59.000Z

429

Planck 2013 results. XVI. Cosmological parameters  

E-Print Network (OSTI)

We present the first results based on Planck measurements of the CMB temperature and lensing-potential power spectra. The Planck spectra at high multipoles are extremely well described by the standard spatially-flat six-parameter LCDM cosmology. In this model Planck data determine the cosmological parameters to high precision. We find a low value of the Hubble constant, H0=67.3+/-1.2 km/s/Mpc and a high value of the matter density parameter, Omega_m=0.315+/-0.017 (+/-1 sigma errors) in excellent agreement with constraints from baryon acoustic oscillation (BAO) surveys. Including curvature, we find that the Universe is consistent with spatial flatness to percent-level precision using Planck CMB data alone. We present results from an analysis of extensions to the standard cosmology, using astrophysical data sets in addition to Planck and high-resolution CMB data. None of these models are favoured significantly over standard LCDM. The deviation of the scalar spectral index from unity is insensitive to the additi...

Ade, P A R; Armitage-Caplan, C; Arnaud, M; Ashdown, M; Atrio-Barandela, F; Aumont, J; Baccigalupi, C; Banday, A J; Barreiro, R B; Bartlett, J G; Battaner, E; Benabed, K; Benoît, A; Benoit-Lévy, A; Bernard, J -P; Bersanelli, M; Bielewicz, P; Bobin, J; Bock, J J; Bonaldi, A; Bond, J R; Borrill, J; Bouchet, F R; Bridges, M; Bucher, M; Burigana, C; Butler, R C; Calabrese, E; Cappellini, B; Cardoso, J -F; Catalano, A; Challinor, A; Chamballu, A; Chary, R -R; Chen, X; Chiang, L -Y; Chiang, H C; Christensen, P R; Church, S; Clements, D L; Colombi, S; Colombo, L P L; Couchot, F; Coulais, A; Crill, B P; Curto, A; Cuttaia, F; Danese, L; Davies, R D; Davis, R J; de Bernardis, P; de Rosa, A; de Zotti, G; Delabrouille, J; Delouis, J -M; Désert, F -X; Dickinson, C; Diego, J M; Dolag, K; Dole, H; Donzelli, S; Doré, O; Douspis, M; Dunkley, J; Dupac, X; Efstathiou, G; Elsner, F; Enßlin, T A; Eriksen, H K; Finelli, F; Forni, O; Frailis, M; Fraisse, A A; Franceschi, E; Gaier, T C; Galeotta, S; Galli, S; Ganga, K; Giard, M; Giardino, G; Giraud-Héraud, Y; Gjerløw, E; González-Nuevo, J; Górski, K M; Gratton, S; Gregorio, A; Gruppuso, A; Gudmundsson, J E; Haissinski, J; Hamann, J; Hansen, F K; Hanson, D; Harrison, D; Henrot-Versillé, S; Hernández-Monteagudo, C; Herranz, D; Hildebrandt, S R; Hivon, E; Hobson, M; Holmes, W A; Hornstrup, A; Hou, Z; Hovest, W; Huffenberger, K M; Jaffe, T R; Jaffe, A H; Jewell, J; Jones, W C; Juvela, M; Keihänen, E; Keskitalo, R; Kisner, T S; Kneissl, R; Knoche, J; Knox, L; Kunz, M; Kurki-Suonio, H; Lagache, G; Lähteenmäki, A; Lamarre, J -M; Lasenby, A; Lattanzi, M; Laureijs, R J; Lawrence, C R; Leach, S; Leahy, J P; Leonardi, R; León-Tavares, J; Lesgourgues, J; Lewis, A; Liguori, M; Lilje, P B; Linden-Vørnle, M; López-Caniego, M; Lubin, P M; Macías-Pérez, J F; Maffei, B; Maino, D; Mandolesi, N; Maris, M; Marshall, D J; Martin, P G; Martínez-González, E; Masi, S; Matarrese, S; Matthai, F; Mazzotta, P; Meinhold, P R; Melchiorri, A; Melin, J -B; Mendes, L; Menegoni, E; Mennella, A; Migliaccio, M; Millea, M; Mitra, S; Miville-Deschênes, M -A; Moneti, A; Montier, L; Morgante, G; Mortlock, D; Moss, A; Munshi, D; Naselsky, P; Nati, F; Natoli, P; Netterfield, C B; Nørgaard-Nielsen, H U; Noviello, F; Novikov, D; Novikov, I; O'Dwyer, I J; Osborne, S; Oxborrow, C A; Paci, F; Pagano, L; Pajot, F; Paoletti, D; Partridge, B; Pasian, F; Patanchon, G; Pearson, D; Pearson, T J; Peiris, H V; Perdereau, O; Perotto, L; Perrotta, F; Pettorino, V; Piacentini, F; Piat, M; Pierpaoli, E; Pietrobon, D; Plaszczynski, S; Platania, P; Pointecouteau, E; Polenta, G; Ponthieu, N; Popa, L; Poutanen, T; Pratt, G W; Prézeau, G; Prunet, S; Puget, J -L; Rachen, J P; Reach, W T; Rebolo, R; Reinecke, M; Remazeilles, M; Renault, C; Ricciardi, S; Riller, T; Ristorcelli, I; Rocha, G; Rosset, C; Roudier, G; Rowan-Robinson, M; Rubiño-Martín, J A; Rusholme, B; Sandri, M; Santos, D; Savelainen, M; Savini, G; Scott, D; Seiffert, M D; Shellard, E P S; Spencer, L D; Starck, J -L; Stolyarov, V; Stompor, R; Sudiwala, R; Sunyaev, R; Sureau, F; Sutton, D; Suur-Uski, A -S; Sygnet, J -F; Tauber, J A; Tavagnacco, D; Terenzi, L; Toffolatti, L; Tomasi, M; Tristram, M; Tucci, M; Tuovinen, J; Türler, M; Umana, G; Valenziano, L; Valiviita, J; Van Tent, B; Vielva, P; Villa, F; Vittorio, N; Wade, L A; Wandelt, B D; Wehus, I K; White, M; White, S D M; Wilkinson, A; Yvon, D; Zacchei, A; Zonca, A

2013-01-01T23:59:59.000Z

430

Turning research into results, final report  

SciTech Connect

In September 1989, the ACEC Research and Management Foundation (ACEC/RMF) submitted a proposal to the US Department of Energy (DOE) in response to the Existing Buildings Efficiency Program`s Solicitation Number DE-PS01-89CE21034. On May 15, 1990, DOE informed ACEC/RMF that it had been selected for a grant award; the final agreement was signed on July 23, 1990. The purpose of the effort was to develop an information package showing engineering firms that energy services can be sold to owners and developers successfully and profitably, that not every design that goes beyond code results in a lawsuit, that owners can be shown the value of paying for the additional design analysis that energy efficiency design requires. The package was envisioned to include examples of buildings that succeed in terms of energy, cost, and design team benefits. It was further conceptualized as both a technical and marketing resource to provide helpful facts, references to relevant documents, graphic materials to be used during client presentations, and guidance on the latest in useful research results.

1993-05-01T23:59:59.000Z

431

TESTING AND ANALYSIS OF CAP CONCRETE STRESS AND STRAIN DUE TO SHRINKAGE, CREEP, AND EXPANSION FINAL REPORT  

Science Conference Proceedings (OSTI)

In-situ decommissioning of Reactors P- and R- at the Savannah River Site will require filling the reactor vessels with a special concrete based on materials such as magnesium phosphate, calcium aluminate or silica fume. Then the reactor vessels will be overlain with an 8 ft. thick layer of Ordinary Portland Cement (OPC) steel reinforced concrete, called the 'Cap Concrete'. The integrity of this protective layer must be assured to last for a sufficiently long period of time to avoid ingress of water into the reactor vessel and possible movement of radioactive contamination into the environment. During drying of this Cap Concrete however, shrinkage strains are set up in the concrete as a result of diffusion and evaporation of water from the top surface. This shrinkage varies with depth in the poured slab due to a non-uniform moisture distribution. This differential shrinkage results in restraint of the upper layers with larger shrinkage by lower layers with lesser displacements. Tensile stresses can develop at the surface from the strain gradients in the bulk slab, which can lead to surface cracking. Further, a mechanism called creep occurs during the curing period or early age produces strains under the action of restraining forces. To investigate the potential for surface cracking, an experimental and analytical program was started under TTQAP SRNL-RP-2009-01184. Slab sections made of Cap Concrete mixture were instrumented with embedded strain gages and relative humidity sensors and tested under controlled environmental conditions of 23 C and relative humidities (RH) of 40% and 80% over a period of 50 days. Calculation methods were also developed for predictions of stress development in the full-scale concrete placement over the reactor vessels. These methods were evaluated by simulating conditions for the test specimens and the calculation results compared to the experimental data. A closely similar test with strain gages was performed by Kim and Lee for a concrete mixture that did not employ humidity sensors and the admixtures used in this program. Yuan and Wan tried to predict the shrinkage strains and stresses in the Kim and Lee experiment, but did not include a creep analysis. Grasley and Lange conducted full restraint load tests on a concrete prism instrumented with humidity sensors over a 7 day curing period. The hypothetical case of full-scale placement of the Cap Concrete was also analyzed using the developed analytical methods. The calculation performed in this report is for scoping purposes only.

Guerrero, H.; Restivo, M.

2011-08-01T23:59:59.000Z

432

Radar Imaging Mechanism of the Seabed: Results of the C-STAR Experiment in 1996 with Special Emphasis on the Relaxation Rate of Short Waves due to Current Variations  

Science Conference Proceedings (OSTI)

During the field experiment of the Coastal Sediment Transport Assessment using SAR imagery project of the Marine Science and Technology program of the European Commission an Air–Sea Interaction Drift Buoy (ASIB) system was equipped with special ...

Ingo Hennings; Blandine Lurin; Norbert Didden

2001-07-01T23:59:59.000Z

433

Model Diagnosis of Nighttime Minimum Temperature Warming during Summer due to Irrigation in the California Central Valley  

Science Conference Proceedings (OSTI)

This study examines the mechanisms of nighttime minimum temperature warming in the California Central Valley during summer due to irrigation. The Scripps Experimental Climate Prediction Center (ECPC) Regional Spectral Model (RSM) was used to ...

Hideki Kanamaru; Masao Kanamitsu

2008-10-01T23:59:59.000Z

434

Effect on the Lifetime of an Atom Undergoing a Dipole Transition Due to the Presence of a Resonating Atom  

Science Conference Proceedings (OSTI)

The modification of the transition rate from the Einstein A coefficient for an atomic dipole transition due to the presence of a similar atom is obtained without the use of damping theory.

Edwin A. Power

1967-01-01T23:59:59.000Z

435

Mental health and employment amongst persons who resettled in Sweden in 1993 1994 due to the war in Bosnia Herzegovina.  

E-Print Network (OSTI)

??General aim: To explore employment and mental health among people from Bosnia-Herzegovina who came to Sweden in 1993-1994 due to the war. Hypotheses: 1) poor… (more)

Blight, Karin Johansson

2009-01-01T23:59:59.000Z

436

Some Influences of Background Flow Conditions on the Generation of Turbulence due to Gravity Wave Breaking above Deep Convection  

Science Conference Proceedings (OSTI)

Deep moist convection generates turbulence in the clear air above and around developing clouds, penetrating convective updrafts and mature thunderstorms. This turbulence can be due to shearing instabilities caused by strong flow deformations near ...

Todd P. Lane; Robert D. Sharman

2008-11-01T23:59:59.000Z

437

Comments on “Influence of Location, Population, and Climate on Building Damage and Fatalities due to Australian Bushfire: 1925–2009”  

Science Conference Proceedings (OSTI)

The absence of an upward trend in normalized building damage in Australian bushfires may reflect reduced vulnerability (due to improved weather forecasts and other factors) offsetting increases in the frequency or intensity of bushfires.

Neville Nicholls

2011-01-01T23:59:59.000Z

438

October 2008 monitoring results for Barnes, Kansas.  

SciTech Connect

The Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA) operated a grain storage facility at Barnes, Kansas, during most of the interval 1949-1974. Carbon tetrachloride contamination was initially detected in 1986 in the town's public water supply wells. In 2006-2007, the CCC/USDA conducted a comprehensive targeted investigation at and near its former property in Barnes to characterize this contamination. Those results were reported previously (Argonne 2008a). In November 2007, the CCC/USDA began quarterly groundwater monitoring at Barnes. The monitoring is being conducted on behalf of the CCC/USDA by Argonne National Laboratory, in accord with the recommendations made in the report for the 2006-2007 targeted investigation (Argonne 2008a). The objective is to monitor the carbon tetrachloride contamination identified in the groundwater at Barnes. The sampling is presently conducted in a network of 28 individual monitoring wells (at 19 distinct locations), 2 public water supply wells, and 1 private well (Figure 1.1). The results of the 2006-2007 targeted investigation and the subsequent monitoring events in November 2007 (Argonne 2008b), March 2008 (Argonne 2008c), and July 2008 (Argonne 2008d) demonstrated the presence of carbon tetrachloride contamination in groundwater at levels exceeding the Kansas Department of Health and Environment (KDHE) Tier 2 risk-based screening level (RBSL) of 5.0 {micro}g/L for this compound. The contaminant plume appears to extend from the former CCC/USDA property northwestward, toward the Barnes public water supply wells. Information obtained during the 2006-2007 investigations indicates that at least one other potential source might have contributed to the groundwater contaminant plume (Argonne 2008a). The former agriculture building owned by the local school district, located immediately east of well PWS3, is also a potential source of the contamination. This current report presents the results of the fourth monitoring event, conducted in October 2008. During this fourth monitoring event, low-flow sampling methods were used to purge and sample all wells. This was the third event at Barnes during which low-flow sampling methods were used.

LaFreniere, L. M.; Environmental Science Division

2009-02-26T23:59:59.000Z

439

March 2008 monitoring results for Barnes, Kansas.  

SciTech Connect

The Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA) operated a grain storage facility at Barnes, Kansas, during most of the interval 1949-1974. Carbon tetrachloride contamination was initially detected in 1986 in the town's public water supply wells. In 2006-2007, the CCC/USDA conducted a comprehensive targeted investigation at and near its former property in Barnes to characterize this contamination. Those results were reported previously (Argonne 2007). In November 2007, the CCC/USDA began quarterly groundwater monitoring at Barnes. The monitoring is being conducted on behalf of the CCC/USDA by Argonne National Laboratory, in accord with the recommendations made in the report for the 2006-2007 targeted investigation (Argonne 2007). The objective is to monitor the carbon tetrachloride contamination identified in the groundwater at Barnes. The sampling is presently conducted in a network of 28 individual monitoring wells (at 19 distinct locations), 2 public water supply wells, and 1 private well (Figure 1.1). The results of the 2006-2007 targeted investigation (Argonne 2007) and the initial monitoring in November 2007 (Argonne 2008) demonstrated the presence of carbon tetrachloride contamination in groundwater at levels slightly exceeding the Kansas Department of Health and Environment (KDHE) Tier 2 risk-based screening level (RBSL) of 5.0 {micro}g/L for this compound. The contaminant plume appears to extend from the former CCC/USDA property northwestward, toward the Barnes public water supply wells. Information obtained during the 2006-2007 investigation indicates that at least one other potential source might have contributed to the groundwater contaminant plume (Argonne 2007). In particular, the local school district (USD 223) handled, stored, and disposed of chemicals including carbon tetrachloride. This current report presents the results of the second quarterly monitoring event, conducted in March 2008. During this second monitoring event, low-flow sampling methods were used to purge and sample all wells. This was the initial use of these sampling methods at Barnes.

LaFreniere, L. M.; Environmental Science Division

2008-08-28T23:59:59.000Z

440

July 2008 monitoring results for Barnes, Kansas.  

SciTech Connect

The Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA) operated a grain storage facility at Barnes, Kansas, during most of the interval 1949-1974. Carbon tetrachloride contamination was initially detected in 1986 in the town's public water supply wells. In 2006-2007, the CCC/USDA conducted a comprehensive targeted investigation at and near its former property in Barnes to characterize this contamination. Those results were reported previously (Argonne 2008a). In November 2007, the CCC/USDA began quarterly groundwater monitoring at Barnes. The monitoring is being conducted on behalf of the CCC/USDA by Argonne National Laboratory, in accord with the recommendations made in the report for the 2006-2007 targeted investigation (Argonne 2008a). The objective is to monitor the carbon tetrachloride contamination identified in the groundwater at Barnes. The sampling is presently conducted in a network of 28 individual monitoring wells (at 19 distinct locations), 2 public water supply wells, and 1 private well (Figure 1.1). The results of the 2006-2007 targeted investigation and the subsequent monitoring events in November 2007 (Argonne 2008b) and March 2008 (Argonne 2008c) demonstrated the presence of carbon tetrachloride contamination in groundwater at levels slightly exceeding the Kansas Department of Health and Environment (KDHE) Tier 2 risk-based screening level (RBSL) of 5.0 {micro}g/L for this compound. The contaminant plume appears to extend from the former CCC/USDA property northwestward, toward the Barnes public water supply wells. Information obtained during the 2006-2007 investigations indicates that at least one other potential source might have contributed to the groundwater contaminant plume (Argonne 2008a). This current report presents the results of the third monitoring event, conducted in July 2008. During this third monitoring event, low-flow sampling methods were used to purge and sample all wells. This was the second event at Barnes during which low-flow sampling methods were used.

LaFreniere, L. M.; Environmental Science Division

2008-11-20T23:59:59.000Z

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441

Grid Transformation Workshop Results Grid Transformation Workshop Results 2 April 2012  

E-Print Network (OSTI)

Grid Transformation Workshop Results April 2012 #12;Grid Transformation Workshop Results 2 April 2012 Grid Transformation Workshop Results plications. We will explore the basics of data modeling Transformation Workshop: Advanced Reading Material Product ID 1024659. The material in this report builds upon

442

Photovoltaic mission analysis: some recent results  

SciTech Connect

Brief accounts of recent short investigations of three different aspects of the interface between photovoltaic solar energy conversion systems and the utility grid are presented. An account is given of some results of a recent investigation of the effect on photovoltaic system economics of the sale of excess photovoltaic electricity to the utility company. A recently developed economic dispatch model was used to study the changes that can be expected to take place in the dispatching of power from conventional plants in a utility system when a photovoltaic power plant is added to the generation mix. Also, a report is given on a set of structured interviews with high management personnel of eight different utility companies, located in various parts of the U.S. -- interviews in which utility attitudes toward photovoltaic power generation, in general, and toward utility-related photovoltaic experiments, in particular, were explored.

Bogen, A. H.; Leonard, S. L.; Siegel, B.

1977-10-18T23:59:59.000Z

443

IMPACTS Results Summary for CY 2010  

Science Conference Proceedings (OSTI)

Working in partnership with industry, the U.S. Department of Energy’s (DOE’s) Advanced Manufacturing Office (AMO) is helping reduce industrial energy use, carbon emissions, and waste while boosting productivity and economic competitiveness. Operating within the Office of Energy Efficiency and Renewable Energy (EERE), ITP conducts research, development, and demonstration (RD&D) projects and technology transfer activities that are producing substantial benefits to industry and helping the nation to address some of its biggest challenges in the areas of energy security and environmental performance. This document summarizes some of the impacts of ITP’s programs through 2010. The selection of 2010 as the timeframe for this report recognizes the fact that it takes at least two years to gain a full perspective on program performance and to assess the results of commercialization efforts for the technologies and practices at issue.

Weakley, Steven A.

2013-03-28T23:59:59.000Z

444

8.03 ARM Research Results  

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

Way of Way of Looking at Clouds * Climate Controversy Resolved * Water Vapor's Role in Models * International Experiment Reduces Uncertainties CONTENTS CONTENTS New Way of Looking at Clouds * Climate Controversy Resolved * Water Vapor's Role in Models * International Experiment Reduces Uncertainties New Way of Looking at Clouds Proves Successful for Arctic Conditions Cloud phase is an important component for correctly model- ing cloud microphysical and optical properties, and thus the impact of the cloud on the solar and terrestrial radiation budget. Assuming an incorrect phase for the model can lead to errors up to 100% in particle size and optical thickness, resulting in errors of 5-20% in the amount of modeled radiation reaching the surface. The determination of cloud phase for the Arctic has been a scientific challenge, since

445

Los Alamos test-room results  

DOE Green Energy (OSTI)

Fourteen Los Alamos test rooms have been operated for several years; this paper covers operation during the winters of 1980-81 and 1981-82. Extensive data have been taken and computer analyzed to determine performance parameters such as efficiency, solar savings fraction, and comfort index. The rooms are directly comparable because each has the same net coefficient and solar collection area and thus the same load collector ratio. Configurations include direct gain, unvented Trombe walls, water walls, phase change walls, and two sunspace geometries. Strategies for reducing heat loss include selective surfaces, two brands of superglazing windows, a heat pipe system, and convection-suppression baffles. Significant differences in both backup heat and comfort are observed among the various rooms. The results are useful, not only for direct room-to-room comparisons, but also to provide data for validation of computer simulation programs.

McFarland, R.D.; Balcomb, J.D.

1982-01-01T23:59:59.000Z

446

Barwood CNG Cab Fleet Study: Final Results  

DOE Green Energy (OSTI)

This report describes a fleet study conducted over a 12-month period to evaluate the operation of dedicated compress natural gas (CNG) Ford Crown Victoria sedans in a taxicab fleet. In the study, we assess the performance and reliability of the vehicles and the cost of operating the CNG vehicles compared to gasoline vehicles. The study results reveal that the CNG vehicles operated by this fleet offer both economic and environmental advantages. The total operating costs of the CNG vehicles were about 25% lower than those of the gasoline vehicles. The CNG vehicles performed as well as the gasoline vehicles, and were just as reliable. Barwood representatives and drivers have come to consider the CNG vehicles an asset to their business and to the air quality of the local community.

Whalen, P.; Kelly, K.; John, M.

1999-05-03T23:59:59.000Z

447

Electroweak and QCD Results from the Tevatron  

SciTech Connect

The Tevatron collider has been remarkably successful and has so far delivered more than 11 fb{sup -1} of data to both the CDF and D0 experiments. Though the LHC has replaced the Tevatron as the world's most powerful collider, years of detector calibration, the huge size of the dataset and the nature of pp collisions will keep the Tevatron competitive in many selected topics in the near future. More than 10 fb{sup -1} of data has been collected by each experiment. Good understanding of the detector performance has been demonstrated by the high precision W boson mass ({Delta}M{sub W} = 31 MeV) and top quark mass ({Delta}M{sub t} = 1.06 GeV) measurements. We report the latest electroweak and QCD results from both experiments. Most analyses presented here used 4-6 fb{sup -1} of data.

Zhu, Junjie; /Michigan U.

2011-09-01T23:59:59.000Z

448

Science Results Enabled by SDSS Astrometric Observations  

E-Print Network (OSTI)

We discuss several results made possible by accurate SDSS astrometric measurements in a large sky area, with emphasis on asteroids and stellar proper motions obtained by comparing POSS and SDSS. SDSS has observed over 200,000 moving objects in five photometric bands, corresponding to about two orders of magnitude increase over previous multi--color surveys. These data were used to extend the measurement of asteroid size distribution to a smaller size limit, to demonstrate that asteroid dynamical families, defined as clusters in orbital parameter space, also strongly segregate in color space, and to discover a correlation between asteroid age and colors. A preliminary analysis of SDSS-POSS proper motions for about 1 million M dwarf stars demonstrates that, in the 0.1-1 kpc distance range, the rotational velocity and its dispersion for disk stars increase with the distance from the Galactic plane.

Z. Ivezic; N. Bond; M. Juric; J. A. Munn; R. H. Lupton; J. R. Pier; G. S. Hennessy; G. R. Knapp; J. E. Gunn; C. M. Rockosi; T. Quinn

2007-01-17T23:59:59.000Z

449

New results for rare muon decays  

Science Conference Proceedings (OSTI)

Branching-ratio limits obtained with the Crystal Box detector are presented for the rare muon decays ..mu.. ..-->.. eee, ..mu.. ..-->.. e..gamma.., and ..mu.. ..-->.. e..gamma gamma... These decays, which violate the conservation of separate lepton-family numbers, are expected to occur in many extensions to the standard model. We found no candidates for the decay ..mu.. ..-->.. eee, yielding an upper limit for the branching ratio of B/sub ..mu..3e/ .. e..gamma.. candidates yields an upper limit of B/sub ..mu..e..gamma../ .. e..gamma gamma.. candidates gives an upper limit of B/sub ..mu..e..gamma gamma../ < 7.2 x 10/sup -11/. These results strengthen the constraints on models that allow transitions between lepton families.

Mischke, R.E.; Bolton, R.D.; Bowman, J.D.; Cooper, M.D.; Frank, J.S.; Hallin, A.L.; Heusi, P.A.; Hoffman, C.M.; Hogan, G.E.; Mariam, F.G.

1986-01-01T23:59:59.000Z

450

DOE Solar Decathlon: 2007 Final Results  

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

Computer-generated image of the Technische Universität Darmstadt 2007 Solar Decathlon house. Computer-generated image of the Technische Universität Darmstadt 2007 Solar Decathlon house. First Place: Technische Universität Darmstadt Computer-generated image of the University of Maryland 2007 Solar Decathlon house. Second Place: University of Maryland Computer-generated image of the Santa Clara University 2007 Solar Decathlon house. Third Place: Santa Clara University Solar Decathlon 2007 Final Results The Solar Decathlon challenged 20 college and university teams to compete in 10 contests and design, build, and operate the most attractive and energy-efficient solar-powered home. After two years of preparation and a week of competition, the final scores and standings are in. Overall First Place: Technische Universität Darmstadt This team from Germany came to the Solar Decathlon hoping to have an impact

451

Estimate of Undulator Magnet Damage Due to Beam Finder Wire Measurements  

Science Conference Proceedings (OSTI)

Beam Finder Wire (BFW) devices will be installed at each break in the Undulator magnet line. These devices will scan small wires across the beam causing some electrons to lose energy through bremsstrahlung. The degraded electrons are subsequently detected downstream of a set of vertical dipole magnets after they pass through the vacuum chamber. This signal can then be used to accurately determine the beam position with respect to the BFW wire. The choice of the wire diameter, scan speed, and operating parameters, depends on the trade-off between the signal size and the radiation damage to the undulator magnets. In this note I estimate the rate of undulator magnet damage that results from scanning as a function of, wire size, scan speed, and average beam current. A separate analysis of the signal size was carried out by Wu. The damage estimate is primarily based on two sources: the first, Fasso, is used to estimate the amount of radiation generated and then absorbed by the magnets; the second, Alderman et. al., is used to estimate the amount of damage the magnet undergoes as a result of the absorbed radiation. Fasso performed a detailed calculation of the radiation, including neutron fluence, that results from a the electron beam passing through a 100 micron diamond foil inserted just in front of the undulator line. Fasso discussed the signficance of various types of radiation and stated that photoneutrons probably play a major role. The estimate in this paper assumes the neutron fluence is the only significant cause of radiation-induced demagnetization. The specific results I use from Fasso's paper are reproduced here in Figure 1, which shows the radial distribution of the integrated neutron fluence per day in the undulator magnets, and Figure 2, which shows the absorbed radiation dose all along the undulator line. In the longitudinal dimension, Fasso's calculation, (see Figure 2), shows that the radiation dose is widely distributed all along the undulator line, but is highest around 70 m from the front of the undulator line where the foil is. At the 70 m point, for the purpose of calculating the demagnetization, I chose a conservative estimate for the effective neutron flux of 1.0 x 10{sup 13} n/cm{sup 2}/day. As can be seen in Figure 1, this choice is representative of the flux nearest the beam where it is the highest. A less conservative estimate, but perhaps more accurate, estimate of the effective flux, would be the average flux in the magnet block, which is roughly one half as much.

Welch, J.

2010-12-03T23:59:59.000Z

452

Spectral Line Broadening and Angular Blurring due to Spacetime Geometry Fluctuations  

E-Print Network (OSTI)

We treat two possible phenomenological effects of quantum fluctuations of spacetime geometry: spectral line broadening and angular blurring of the image of a distance source. A geometrical construction will be used to express both effects in terms of the Riemann tensor correlation function. We apply the resulting expressions to study some explicit examples in which the fluctuations arise from a bath of gravitons in either a squeezed state or a thermal state. In the case of a squeezed state, one has two limits of interest: a coherent state which exhibits classical time variation but no fluctuations, and a squeezed vacuum state, in which the fluctuations are maximized.

R. T. Thompson; L. H. Ford

2006-01-30T23:59:59.000Z

453

Finite-element analysis of the deformation of thin Mylar films due to measurement forces.  

Science Conference Proceedings (OSTI)

Significant deformation of thin films occurs when measuring thickness by mechanical means. This source of measurement error can lead to underestimating film thickness if proper corrections are not made. Analytical solutions exist for Hertzian contact deformation, but these solutions assume relatively large geometries. If the film being measured is thin, the analytical Hertzian assumptions are not appropriate. ANSYS is used to model the contact deformation of a 48 gauge Mylar film under bearing load, supported by a stiffer material. Simulation results are presented and compared to other correction estimates. Ideal, semi-infinite, and constrained properties of the film and the measurement tools are considered.

Baker, Michael Sean; Robinson, Alex Lockwood; Tran, Hy D.

2012-01-01T23:59:59.000Z

454

Drop Test Results for the Combustion Engineering Model No. ABB-2901 Fuel Pellet Package  

SciTech Connect

The U.S. Nuclear Regulatory Commission (USNRC) contracted with the Packaging Review Group (PRG) at Lawrence Livermore National Laboratory (LLNL) to conduct a single, 30-ft shallow-angle drop test on the Combustion Engineering ABB-2901 drum-type shipping package. The purpose of the test was to determine if bolted-ring drum closures could fail during shallow-angle drops. The PRG at LLNL planned the test, and Defense Technologies Engineering Division (DTED) personnel from LLNL's Site-300 Test Group executed the plan. The test was conducted in November 2001 using the drop-tower facility at LLNL's Site 300. Two representatives from Westinghouse Electric Company in Columbia, South Carolina (WEC-SC); two USNRC staff members; and three PRG members from LLNL witnessed the preliminary test runs and the final test. The single test clearly demonstrated the vulnerability of the bolted-ring drum closure to shallow-angle drops-the test package's drum closure was easily and totally separated from the drum package. The results of the preliminary test runs and the 30-ft shallow-angle drop test offer valuable qualitative understandings of the shallow-angle impact.

Hafner, R S; Mok, G C; Hagler, L G

2004-04-23T23:59:59.000Z

455

A COMPRESSED SENSING METHOD WITH ANALYTICAL RESULTS FOR LIDAR FEATURE CLASSIFICATION  

Science Conference Proceedings (OSTI)

We present an innovative way to autonomously classify LiDAR points into bare earth, building, vegetation, and other categories. One desirable product of LiDAR data is the automatic classification of the points in the scene. Our algorithm automatically classifies scene points using Compressed Sensing Methods via Orthogonal Matching Pursuit algorithms utilizing a generalized K-Means clustering algorithm to extract buildings and foliage from a Digital Surface Models (DSM). This technology reduces manual editing while being cost effective for large scale automated global scene modeling. Quantitative analyses are provided using Receiver Operating Characteristics (ROC) curves to show Probability of Detection and False Alarm of buildings vs. vegetation classification. Histograms are shown with sample size metrics. Our inpainting algorithms then fill the voids where buildings and vegetation were removed, utilizing Computational Fluid Dynamics (CFD) techniques and Partial Differential Equations (PDE) to create an accurate Digital Terrain Model (DTM) [6]. Inpainting preserves building height contour consistency and edge sharpness of identified inpainted regions. Qualitative results illustrate other benefits such as Terrain Inpainting s unique ability to minimize or eliminate undesirable terrain data artifacts. Keywords: Compressed Sensing, Sparsity, Data Dictionary, LiDAR, ROC, K-Means, Clustering, K-SVD, Orthogonal Matching Pursuit

Allen, Josef D [ORNL

2011-01-01T23:59:59.000Z

456

A method to correct IACT data for atmospheric absorption due to the Saharan Air Layer  

E-Print Network (OSTI)

Using the atmosphere as a detector volume, Imaging Air Cherenkov Telescopes (IACTs) depend highly on the properties and the condition of the air mass above the telescope. On the Canary Island of La Palma, where the Major Atmospheric Gamma-ray Imaging Cherenkov telescope (MAGIC) is situated, the Saharan Air Layer (SAL) can cause strong atmospheric absorption affecting the data quality and resulting in a reduced gamma flux. To correlate IACT data with other measurements, e.g. long-term monitoring or Multi-Wavelength (MWL) studies, an accurate flux determination is mandatory. Therefore, a method to correct the data for the effect of the SAL is needed. Three different measurements of the atmospheric absorption are performed on La Palma. From the determined transmission, a correction factor is calculated and applied to the MAGIC data. The different transmission measurements from optical and IACT data provide comparable results. MAGIC data of PG 1553+113, taken during a MWL campaign in July 2006, have been analyzed using the presented method, providing a corrected flux measurement for the study of the spectral energy distribution of the source.

Daniela Dorner; Kari Nilsson; Thomas Bretz

2008-08-02T23:59:59.000Z

457

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

458

Job Creation Due to Nuclear Power Resurgence in The United States  

Science Conference Proceedings (OSTI)

The recent revival of global interest in the next generation of nuclear power reactors is causing a reexamination of the role of nuclear power in the United States. This renewed interest has led to questions regarding the capability and capacity of current U.S. industries to support a renewal of nuclear power plant deployment. Key among the many questions currently being asked is what potential exists for the creation of new jobs as a result of developing and operating these new plants? Idaho National Laboratory and Bechtel Power Corporation collaborated to perform a Department of Energy-sponsored study that evaluated the potential for job creation in the U.S. should these new next generation nuclear power plants be built. The study focused primarily on providing an initial estimate of the numbers of new manufacturing jobs that could be created, including those that could be repatriated from overseas, resulting from the construction of these new reactors. In addition to the growth in the manufacturing sector, the study attempted to estimate the potential increase in construction trades necessary to accomplish the new construction.

C. R. Kenley; R. D. Klingler; C. M. Plowman; R. Soto; R. J. Turk; R. L. Baker; S. A. Close; V. L. McDonnell; S. W. Paul; L. R. Rabideau; S. S. Rao; B. P. Reilly

2009-11-01T23:59:59.000Z

459

Monte Carlo Assessments of Absorbed Doses to the Hands of Radiopharmaceutical Workers Due to Photon Emitters  

SciTech Connect

This paper describes the characterization of radiation doses to the hands of nuclear medicine technicians resulting from the handling of radiopharmaceuticals. Radiation monitoring using ring dosimeters indicates that finger dosimeters that are used to show compliance with applicable regulations may overestimate or underestimate radiation doses to the skin depending on the nature of the particular procedure and the radionuclide being handled. To better understand the parameters governing the absorbed dose distributions, a detailed model of the hands was created and used in Monte Carlo simulations of selected nuclear medicine procedures. Simulations of realistic configurations typical for workers handling radiopharmaceuticals were performedfor a range of energies of the source photons. The lack of charged-particle equilibrium necessitated full photon-electron coupled transport calculations. The results show that the dose to different regions of the fingers can differ substantially from dosimeter readings when dosimeters are located at the base of the finger. We tried to identify consistent patterns that relate the actual dose to the dosimeter readings. These patterns depend on the specific work conditions and can be used to better assess the absorbed dose to different regions of the exposed skin.

Ilas, Dan [ORNL; Eckerman, Keith F [ORNL; Karagiannis, Harriet [ORNL

2009-01-01T23:59:59.000Z

460

PHASE I SINGLE CELL ELECTROLYZER TEST RESULTS  

DOE Green Energy (OSTI)

This document reports the results of Phase I Single Cell testing of an SO{sub 2}-Depolarized Water Electrolyzer. Testing was performed primarily during the first quarter of FY 2008 at the Savannah River National Laboratory (SRNL) using an electrolyzer cell designed and built at SRNL. Other facility hardware were also designed and built at SRNL. This test further advances this technology for which work began at SRNL in 2005. This research is valuable in achieving the ultimate goal of an economical hydrogen production process based on the Hybrid Sulfur (HyS) Cycle. The focus of this work was to conduct single cell electrolyzer tests to further develop the technology of SO{sub 2}-depolarized electrolysis as part of the HyS Cycle. The HyS Cycle is a hybrid thermochemical cycle that may be used in conjunction with advanced nuclear reactors or centralized solar receivers to produce hydrogen by water-splitting. Like all other sulfur-based cycles, HyS utilizes the high temperature thermal decomposition of sulfuric acid to produce oxygen and regenerate sulfur dioxide. The unique aspect of HyS is the generation of hydrogen in a water electrolyzer that is operated under conditions where dissolved sulfur dioxide depolarizes the anodic reaction, resulting in substantial voltage reduction. Low cell voltage is essential for both thermodynamic efficiency and hydrogen cost. Sulfur dioxide is oxidized at the anode, producing sulfuric acid that is sent to the high temperature acid decomposition portion of the cycle. The electrolyzer cell uses the membrane electrode assembly (MEA) concept. The anode and cathode are formed by spraying platinum containing catalyst on both sides of a Proton Exchange Membrane (PEM). In most testing the material of the PEM was NafionR. The electrolyzer cell active area can be as large as 54.8 cm{sup 2}. Feed to the anode of the electrolyzer is a sulfuric acid solution containing sulfur dioxide. The partial pressure of sulfur dioxide could be varied in the range of 1 to 6 atm (15 to 90 psia). Temperatures could be controlled in the range from ambient to 80 C. Hydrogen generated at the cathode of the cell was collected for the purpose of flow measurement and composition analysis. The test facility proved to be easy to operate, versatile, and reliable.

Steimke, J; Timothy Steeper, T

2008-08-05T23:59:59.000Z

Note: This page contains sample records for the topic "qualitative result due" 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

Innovative nuclear fuels: results and strategy  

SciTech Connect

To facilitate the discovery and design of innovative nuclear fuels, multi-scale models and simulations are used to predict irradiation effects on the thermal conductivity, oxygen diffusivity, and thermal expansion of oxide fuels. The multi-scale approach is illustrated using results on ceramic fuels with a focus on predictions of point defect concentrations, stoichiometry, and phase stability. The high performance computer simulations include coupled heat transport, diffusion, and thermal expansion, gas bubble formation and temperature evolution in a fuel element consisting of UO2 fuel and metallic cladding. The second part of the talk is dedicated to a discussion of an international strategy for developing advanced, innovative nuclear fuels. Four initiative are proposed to accelerate the discovery and design of new materials: (a) Develop an international pool of experts, (b) Create Institutes for Materials Discovery and Design, (c) Create an International Knowledge base for experimental data, models (mathematical expressions), and simulations (codes) and (d) Organize international workshops and conference sessions. The paper ends with a discussion of existing and emerging international collaborations.

Stan, Marius [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

462

First Results from IceCube  

E-Print Network (OSTI)

IceCube is a 1 km$^3$ neutrino observatory being built to study neutrino production in active galactic nuclei, gamma-ray bursts, supernova remnants, and a host of other astrophysical sources. High-energy neutrinos may signal the sources of ultra-high energy cosmic rays. IceCube will also study many particle-physics topics: searches for WIMP annihilation in the Earth or the Sun, and for signatures of supersymmetry in neutrino interactions, studies of neutrino properties, including searches for extra dimensions, and searches for exotica such as magnetic monopoles or Q-balls. IceCube will also study the cosmic-ray composition. In January, 2005, 60 digital optical modules (DOMs) were deployed in the South Polar ice at depths ranging from 1450 to 2450 meters, and 8 ice-tanks, each containing 2 DOMs were deployed as part of a surface air-shower array. All 76 DOMs are collecting high-quality data. After discussing the IceCube physics program and hardware, I will present some initial results with the first DOMs.

Spencer R. Klein; for the IceCube Collaboration

2006-01-12T23:59:59.000Z

463

QCD, Tevatron results and LHC prospects  

SciTech Connect

We present a summary of the most recent measurements relevant to Quantum Chromodynamics (QCD) delivered by the D0 and CDF Tevatron experiments by May 2008. CDF and D0 are moving toward precision measurements of QCD based on data samples in excess of 1 fb-1. The inclusive jet cross sections have been extended to forward rapidity regions and measured with unprecedented precision following improvements in the jet energy calibration. Results on dijet mass distributions, bbbar dijet production using tracker based triggers, underlying event in dijet and Drell-Yan samples, inclusive photon and diphoton cross sections complete the list of measurements included in this paper. Good agreement with pQCD within errors is observed for jet production measurements. An improved and consistent theoretical description is needed for photon+jets processes. Collisions at the LHC are scheduled for early fall 2008, opening an era of discoveries at the new energy frontier, 5-7 times higher than that of the Tevatron.

Elvira, V.Daniel; /Fermilab

2008-08-01T23:59:59.000Z

464

Geothermal industry employment: Survey results & analysis  

DOE Green Energy (OSTI)

The Geothermal Energy Association (GEA) is ofteh asked about the socioeconomic and employment impact of the industry. Since available literature dealing with employment involved in the geothermal sector appeared relatively outdated, unduly focused on certain activities of the industry (e.g. operation and maintenance of geothermal power plants) or poorly reliable, GEA, in consultation with the DOE, decided to conduct a new employment survey to provide better answers to these questions. The main objective of this survey is to assess and characterize the current workforce involved in geothermal activities in the US. Several initiatives have therefore been undertaken to reach as many organizations involved in geothermal activities as possible and assess their current workforce. The first section of this document describes the methodology used to contact the companies involved in the geothermal sector. The second section presents the survey results and analyzes them. This analysis includes two major parts. The first part analyzes the survey responses, presents employment numbers that were captured and describes the major characteristics of the industry that have been identified. The second part of the analysis estimates the number of workers involved in companies that are active in the geothermal business but did not respond to the survey or could not be reached. Preliminary conclusions and the study limits and restrictions are then presented. The third section addresses the potential employment impact related to manufacturing and construction of new geothermal power facilities. Indirect and induced economic impacts related with such investment are also investigated.

Not Available

2005-09-01T23:59:59.000Z