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1

Using continuation methods to evaluate worst-case manoeuvre and gust loading scenarios  

E-Print Network [OSTI]

a nonlinear problem and, in order to ensure that worst-case conditions are successfully identified, a very

Bristol, University of

2

Optimization Online - The Worst-case Wind Power Scenario for ...  

E-Print Network [OSTI]

Sep 16, 2014 ... The Worst-case Wind Power Scenario for Adaptive Robust Unit Commitment Problems. German Morales-España(gmorales ***at*** kth.se).

German Morales-España

2014-09-16T23:59:59.000Z

3

Measuring worst-case errors in a robot workcell  

SciTech Connect (OSTI)

Errors in model parameters, sensing, and control are inevitably present in real robot systems. These errors must be considered in order to automatically plan robust solutions to many manipulation tasks. Lozano-Perez, Mason, and Taylor proposed a formal method for synthesizing robust actions in the presence of uncertainty; this method has been extended by several subsequent researchers. All of these results presume the existence of worst-case error bounds that describe the maximum possible deviation between the robot`s model of the world and reality. This paper examines the problem of measuring these error bounds for a real robot workcell. These measurements are difficult, because of the desire to completely contain all possible deviations while avoiding bounds that are overly conservative. The authors present a detailed description of a series of experiments that characterize and quantify the possible errors in visual sensing and motion control for a robot workcell equipped with standard industrial robot hardware. In addition to providing a means for measuring these specific errors, these experiments shed light on the general problem of measuring worst-case errors.

Simon, R.W.; Brost, R.C.; Kholwadwala, D.K. [Sandia National Labs., Albuquerque, NM (United States). Intelligent Systems and Robotics Center

1997-10-01T23:59:59.000Z

4

A Worst-Case Circuit Delay Verification Technique Considering Power Grid Voltage Variations  

E-Print Network [OSTI]

A Worst-Case Circuit Delay Verification Technique Considering Power Grid Voltage Variations then these critical paths we tie the supplies of the gates to physical power grids and re-analyze for the worst- case and report on the implementation results using benchmark circuits tied to a number of test-case power grids

Najm, Farid N.

5

Policy Issues Related to Worst Case Risk Analyses and the Establishment of Acceptable Standards of De Minimis Risk  

Science Journals Connector (OSTI)

Worst case analyses of risks become important whenever there are wide ranges of uncertainty surrounding estimated risks of technological applications, especially if environmental and societal impacts can reach ca...

Miller B. Spangler

1987-01-01T23:59:59.000Z

6

Worst-Case" Simulant for INTEC Soduim-Bearing Waste Vitrification Tests  

SciTech Connect (OSTI)

The Idaho Nuclear Technology and Engineering Center (INTEC) is developing technologies to process the radioactive liquid sodium-bearing waste from the waste tanks at INTEC to solidify the waste into a form suitable for disposition in a National high-level waste repository currently being considered at Yucca Mountain, Nevada. The requirement is for a qualified glass waste form. Therefore, vitrification is being developed using laboratory, research-scale, and pilot scale melters. While some laboratory experiments can be done with actual waste, the larger scale and most laboratory experiments must be done on non-radioactive simulant waste solutions. Some tests have previously been done on simulants of a representative waste that has been concentrated and will remain unchanged in tank WM-180 until it is vitrified. However, there is a need to develop glass compositions that will accommodate all future wastes in the tanks. Estimates of those future waste compositions have been used along with current compositions to develop a “worst-case” waste composition and a simulant preparation recipe suitable for developing a bracketing glass formulation and for characterizing the flowpath and decontamination factors of pertinent off-gas constituents in the vitrification process. The considerations include development of criteria for a worst-case composition. In developing the criteria, the species that are known to affect vitrification and glass properties were considered. Specific components that may need to be characterized in the off-gas cleanup system were considered in relation to detection limits that would need to be exceeded in order to track those components. Chemical aspects of various constituent interactions that should be taken into account when a component may need to be increased in concentration from that in the actual waste for detection in experiments were evaluated. The worst-case waste simulant composition is comprised of the highest concentration of each species of concern that will be present in current and future wastes from different tanks. Because most of the species of concern are at small concentrations relative to the bulk components that are fairly constant, maximizing them individually into a single waste composition does not substantially affect the general vitrification chemistry. The evaluation and results are reported here. This simulant is suitable for performing laboratory and pilot-scale tests in order to develop the vitrification technology.

Christian, Jerry Dale; Batcheller, Thomas Aquinas

2001-09-01T23:59:59.000Z

7

Testing the Results of Static Worst-Case Execution-Time Analysis P. Puschner and R. Nossaly  

E-Print Network [OSTI]

Testing the Results of Static Worst-Case Execution-Time Analysis P. Puschner and R. Nossaly provided by the user. This pa- per presents a method for testing the results of static WCET analysis. The proposed test method is a black- box test method that uses a genetic algorithm (GA) for test

8

Conditioning-specific reflex modification occurs when an unconditionedresponse(UR)ismodifiedinthe absence  

E-Print Network [OSTI]

not generalize from air puff to electro- dermal stimulation even though conditioning occurs to comparable levels can be obtained only at high air puff intensi- ties even though conditioning is supported by lower airConditioning-specific reflex modification occurs when an unconditionedresponse

9

USE OF NATURALLY-OCCURRING TRACERS TO MONITOR TWO-PHASE CONDITIONS IN THE  

Open Energy Info (EERE)

NATURALLY-OCCURRING TRACERS TO MONITOR TWO-PHASE CONDITIONS IN THE NATURALLY-OCCURRING TRACERS TO MONITOR TWO-PHASE CONDITIONS IN THE COSO EGS PROJECT Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: USE OF NATURALLY-OCCURRING TRACERS TO MONITOR TWO-PHASE CONDITIONS IN THE COSO EGS PROJECT Details Activities (1) Areas (1) Regions (0) Abstract: A dramatic decrease in the ratio of chloride to boron was observed in the liquid discharge of a well proposed for EGS development in the Coso geothermal field. The decrease appears to be related to the transformation of some feed zones in the well from liquid-dominated to vapor-dominated. High concentrations of boron are transported to the wellbore in the steam, where it fractionates to the liquid phase flowing in from liquid-dominated feed zones. The high-boron steam is created when the

10

INVESTIGATION OF THE PHYSICAL CONDITIONS CON-TROLLING SPAWNING OF OYSTERS AND THE OCCUR-  

E-Print Network [OSTI]

_- - _- - - - - - - - - - - - - _ Methods and equipment _ Topography _ Physical conditions- - - - - - - - - - - - - _ Temperature _ Tide and current_ - - - - - - - - - - - - - - -- Salinity - ---- - - -- - - -- __ -_ Hydrogen-ion concentratioll that exists between physical conditions and the success or failure of oyster production in inshore waters

11

Abstract-This paper investigates four different short circuit fault conditions which can occur for an inverter-fed perma-  

E-Print Network [OSTI]

demagnetizing the permanent magnets. I. INTRODUCTION In case of a short circuit, there is a risk of irreversibly de- magnetizing (parts of) the permanent magnets of a motor, due to the strong opposing magnetic for an inverter-fed perma- nent magnet synchronous motor (PMSM) with buried mag- nets. The fault conditions

Jantsch, Axel

12

Investigation of Gas-Phase Reactions and Ignition Delay Occurring at Conditions Typical for Partial Oxidation of Methane to Synthesis Gas  

Science Journals Connector (OSTI)

Investigation of Gas-Phase Reactions and Ignition Delay Occurring at Conditions Typical for Partial Oxidation of Methane to Synthesis Gas ... A detailed kinetic model based on a free-radical mechanism has been developed, which allows the adequate calculation of the feed conversions and product selectivities. ... The production of synthesis gas from natural gas by partial oxidation has been extensively investigated as an alternative for the steam-reforming process since it results directly in a H2/CO ratio of 2:1 which is required for methanol and Fischer?Tropsch synthesis. ...

R. J. Berger; G. B. Marin

1999-06-15T23:59:59.000Z

13

Inhibition of slug front corrosion in multiphase flow conditions  

SciTech Connect (OSTI)

Corrosion at the slug front at the bottom of a pipeline is identified as one of the worst cases of corrosion occurring in the pipeline which carries unprocessed multiphase production with a high level of CO{sub 2} gas. One objective of the study in recommending a subsea completion to shore was to determine if commercial corrosion inhibitors can control this type of corrosion using carbon steel pipeline. Thus, inhibitors which showed excellent performance in the lab using the Rotating Cylinder Electrode system (RCE) were further evaluated to confirm their performance in a flow loop simulating the test conditions predicted from the flow modeling for the proposed pipeline. The performance profile of two commercial inhibitors were determined in a 4 in. flow loop at 7O C, 100 psig CO{sub 2} partial pressure in corrosive brines with or without ethylene glycol and/or light hydrocarbon. Results showed that the carbon steel pipeline could be adequately protected at low temperature using a commercial corrosion inhibitor to meet the designed life of the pipeline. Ethylene glycol, which is used in the pipeline to prevent hydrate formation, reduces the corrosivity of the brine and gives no effect on inhibitor performance under the slug flow conditions. A good agreement in inhibitor performance was observed between the flow loop and the RCE testing. The uninhibited corrosion rate of the test brine in this study is in good agreement with the predicted value using deWaard and Williams correlation for CO{sub 2} corrosion.

Chen, H.J. [Chevron Petroleum Technology Co., La Habra, CA (United States); Jepson, W.P. [Ohio Univ., Athens, OH (United States)

1998-12-31T23:59:59.000Z

14

Worst-case-expectation approach to optimization under uncertainty  

E-Print Network [OSTI]

related to planning of the Brazilian interconnected power system. Key Words: ...... The load of each area must be supplied by local hydro and thermal plants or by power flows .... for a simulation with 101% of increase on the forecast demand.

2012-10-30T23:59:59.000Z

15

Generating Worst-Case Stimuli for Accurate Power Grid Analysis  

Science Journals Connector (OSTI)

Power distribution systems provide the voltages and currents that devices in a circuit need to operate properly and silicon success requires its careful design and verification. However, problems like voltage dro...

Pedro Marques Morgado; Paulo F. Flores…

2009-01-01T23:59:59.000Z

16

Worst Case Scenario for Large Distribution Networks with Distributed Generation  

E-Print Network [OSTI]

, tides, and geothermal heat, is the best choice as alternative source of energy. The interconnection and distribution networks, finally to the electric energy consumers. The life style of a nation is measured of these renewable energy sources and other forms of small generation such as combined heat and power (CHP) units

Pota, Himanshu Roy

17

Photosynthesis: Why Does It Occur?  

Science Journals Connector (OSTI)

Photosynthesis: Why Does It Occur? ... The text explains why photosynthesis is the opposite of respiration only at the reversible boundary between them. ... Contrary to popular belief, photosynthesis is exothermic at all times. ...

J. J. MacDonald

1995-01-01T23:59:59.000Z

18

Naturally Occurring Radioactive Materials (NORM)  

SciTech Connect (OSTI)

This paper discusses the broad problems presented by Naturally Occuring Radioactive Materials (NORM). Technologically Enhanced naturally occuring radioactive material includes any radionuclides whose physical, chemical, radiological properties or radionuclide concentration have been altered from their natural state. With regard to NORM in particular, radioactive contamination is radioactive material in an undesired location. This is a concern in a range of industries: petroleum; uranium mining; phosphorus and phosphates; fertilizers; fossil fuels; forestry products; water treatment; metal mining and processing; geothermal energy. The author discusses in more detail the problem in the petroleum industry, including the isotopes of concern, the hazards they present, the contamination which they cause, ways to dispose of contaminated materials, and regulatory issues. He points out there are three key programs to reduce legal exposure and problems due to these contaminants: waste minimization; NORM assesment (surveys); NORM compliance (training).

Gray, P. [ed.

1997-02-01T23:59:59.000Z

19

Context-Sensitive Measurement-Based Worst-Case Execution Time Estimation Michael Zolda, Sven Bunte  

E-Print Network [OSTI]

analysis (MBTA) [1], we estimate the WCET of a given piece of software by executing it with selected input

20

Designing network traffic managers with throughput, fairness, and worst-case performance guarantees  

E-Print Network [OSTI]

on High Performance Computer Architecture (HPCA), Jan. 2001,and J. Hennessy, Computer Architecture: A Quantitativetional Symposium on Computer Architecture (ISCA), May 1991,

Wang, Hao

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "worst-case conditions occurring" 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

A Trust Region Algorithm with a Worst-Case Iteration Complexity of ...  

E-Print Network [OSTI]

Oct 21, 2014 ... Science, Office of Advanced Scientific Computing Research, Applied ... methodologies, falling into the general categories of line search.

2014-10-21T23:59:59.000Z

22

Worst-Case Value-at-Risk of Non-Linear Portfolios  

E-Print Network [OSTI]

Jun 21, 2012 ... Portfolio optimization problems involving Value-at-Risk (VaR) are .... high portfolio return, whilst keeping the associated risk at an acceptable ...

2012-06-21T23:59:59.000Z

23

Nipah virus entry can occur by macropinocytosis  

SciTech Connect (OSTI)

Nipah virus (NiV) is a zoonotic biosafety level 4 paramyxovirus that emerged recently in Asia with high mortality in man. NiV is a member, with Hendra virus (HeV), of the Henipavirus genus in the Paramyxoviridae family. Although NiV entry, like that of other paramyxoviruses, is believed to occur via pH-independent fusion with the host cell's plasma membrane we present evidence that entry can occur by an endocytic pathway. The NiV receptor ephrinB2 has receptor kinase activity and we find that ephrinB2's cytoplasmic domain is required for entry but is dispensable for post-entry viral spread. The mutation of a single tyrosine residue (Y304F) in ephrinB2's cytoplasmic tail abrogates NiV entry. Moreover, our results show that NiV entry is inhibited by constructions and drugs specific for the endocytic pathway of macropinocytosis. Our findings could potentially permit the rapid development of novel low-cost antiviral treatments not only for NiV but also HeV.

Pernet, Olivier; Pohl, Christine; Ainouze, Michelle; Kweder, Hasan [Molecular Basis of Paramyxovirus Entry, INSERM U758 Virologie Humaine IFR 128 BioSciences Gerland-Lyon Sud, 21 Avenue Tony Garnier, 69365 Lyon Cedex 07 (France); Buckland, Robin, E-mail: robin.buckland@inserm.f [Molecular Basis of Paramyxovirus Entry, INSERM U758 Virologie Humaine IFR 128 BioSciences Gerland-Lyon Sud, 21 Avenue Tony Garnier, 69365 Lyon Cedex 07 (France)

2009-12-20T23:59:59.000Z

24

Introduction to naturally occurring radioactive material  

SciTech Connect (OSTI)

Naturally occurring radioactive material (NORM) is everywhere; we are exposed to it every day. It is found in our bodies, the food we eat, the places where we live and work, and in products we use. We are also bathed in a sea of natural radiation coming from the sun and deep space. Living systems have adapted to these levels of radiation and radioactivity. But some industrial practices involving natural resources concentrate these radionuclides to a degree that they may pose risk to humans and the environment if they are not controlled. Other activities, such as flying at high altitudes, expose us to elevated levels of NORM. This session will concentrate on diffuse sources of technologically-enhanced (TE) NORM, which are generally large-volume, low-activity waste streams produced by industries such as mineral mining, ore benefication, production of phosphate Fertilizers, water treatment and purification, and oil and gas production. The majority of radionuclides in TENORM are found in the uranium and thorium decay chains. Radium and its subsequent decay products (radon) are the principal radionuclides used in characterizing the redistribution of TENORM in the environment by human activity. We will briefly review other radionuclides occurring in nature (potassium and rubidium) that contribute primarily to background doses. TENORM is found in many waste streams; for example, scrap metal, sludges, slags, fluids, and is being discovered in industries traditionally not thought of as affected by radionuclide contamination. Not only the forms and volumes, but the levels of radioactivity in TENORM vary. Current discussions about the validity of the linear no dose threshold theory are central to the TENORM issue. TENORM is not regulated by the Atomic Energy Act or other Federal regulations. Control and regulation of TENORM is not consistent from industry to industry nor from state to state. Proposed regulations are moving from concentration-based standards to dose-based standards. So when is TENORM a problem? Where is it a problem? That depends on when, where, and whom you talk to! We will start by reviewing background radioactivity, then we will proceed to the geology, mobility, and variability of these radionuclides. We will then review some of the industrial sectors affected by TENORM, followed by a brief discussion on regulatory aspects of the issue.

Egidi, P.

1997-08-01T23:59:59.000Z

25

How low-energy fusion can occur  

E-Print Network [OSTI]

Fusion of two deuterons of room temperature energy is discussed. The nuclei are in vacuum with no connection to any external source (electric or magnetic field, illumination, surrounding matter, traps, etc.) which may accelerate them. The energy of two nuclei is conserved and remains small during the motion through the Coulomb barrier. The penetration through this barrier, which is the main obstacle for low-energy fusion, strongly depends on a form of the incident flux on the Coulomb center at large distances from it. In contrast to the usual scattering, the incident wave is not a single plane wave but the certain superposition of plane waves of the same energy and various directions, for example, a convergent conical wave. The wave function close to the Coulomb center is determined by a cusp caustic which is probed by de Broglie waves. The particle flux gets away from the cusp and moves to the Coulomb center providing a not small probability of fusion (cusp driven tunneling). Getting away from a caustic cusp also occurs in optics and acoustics.

B. Ivlev

2012-11-03T23:59:59.000Z

26

How much the grid network and rescuers’ communication can improve the rescue efficiency in worst-case analysis  

Science Journals Connector (OSTI)

Disasters often bring great uncertainty to the urban traffic network. Considering a special urban network and the rescuers’ communication, this paper focuses on the real-time rescue routing problem from a sour...

Yinfeng Xu; Huili Zhang

2013-11-01T23:59:59.000Z

27

Progress In Electromagnetics Research, Vol. 140, 297311, 2013 SIMPLE, TAYLOR-BASED WORST-CASE MODEL FOR  

E-Print Network [OSTI]

) is resolving unwanted electromagnetic interactions between electronic systems. The number of possibleProgress In Electromagnetics Research, Vol. 140, 297­311, 2013 SIMPLE, TAYLOR-BASED WORST Rennes Cedex 7, France Abstract--To obtain Electromagnetic Compatibility (EMC), we would like to study

Boyer, Edmond

28

Classification of Code Annotations and Discussion of Compiler-Support for Worst-Case Execution Time Analysis  

E-Print Network [OSTI]

of energy consumption, resource-aware code generation, or re- targetable code generators. Program execution providing explicit sup- port for WCET analysis would have on usage of these code annotations is discussed

29

Figure 1. (a) Worst case SNM scenario. (b) SNM simulation results. Circuit Techniques for Ultra-Low Power Subthreshold SRAMs  

E-Print Network [OSTI]

consumption and energy efficiency are the critical constraints. In particular, ultra- low power SRAM designs port circuits for the design of an ultra-low power sub-threshold SRAMs. I. INTRODUCTION Digital consumption is the primary design constraint [1][2][3]. Subthreshold static CMOS logic can operate while

Kim, Chris H.

30

Air Conditioning  

Science Journals Connector (OSTI)

Air Conditioning ... CHEMISTS and engineers use air conditioning as a valuable tool in more than two hundred industries. ... Air conditioning is a tool with many facets. ...

MARGARET INGELS

1938-02-10T23:59:59.000Z

31

Appendix II. Calculation of Slope Factors for Naturally Occurring Radionuclides  

E-Print Network [OSTI]

Appendix II. Calculation of Slope Factors for Naturally Occurring Radionuclides In developing calculates the slope factors for the naturally occurring radionuclides under consideration. The Radionuclide products with half-lives of less than 6 months). As explained below, naturally occurring radionuclides

32

Radioactive Mineral Occurences in Nevada | Open Energy Information  

Open Energy Info (EERE)

Radioactive Mineral Occurences in Nevada Radioactive Mineral Occurences in Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Radioactive Mineral Occurences in Nevada Abstract Abstract unavailable. Author Larry J. Garside Organization Nevada Bureau of Mines and Geology Published Nevada Bureau of Mines and Geology, 1973 Report Number Open File Report 94-2 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Radioactive Mineral Occurences in Nevada Citation Larry J. Garside (Nevada Bureau of Mines and Geology). 1973. Radioactive Mineral Occurences in Nevada. Reno, NV: Nevada Bureau of Mines and Geology. Report No.: Open File Report 94-2. Retrieved from "http://en.openei.org/w/index.php?title=Radioactive_Mineral_Occurences_in_Nevada&oldid=690513"

33

Determining Planes Along Which Earthquakes Occur- Method of Applicatio...  

Open Energy Info (EERE)

Planes Along Which Earthquakes Occur- Method of Application to Earthquakes Accompanying Hydraulic Fracturing Jump to: navigation, search OpenEI Reference LibraryAdd to library...

34

Key changes in proteins occur in cyanobacteria | EMSL  

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

proteins occur in cyanobacteria Identification of redox-sensitive enzymes can enrich biofuel production research Overview of the chemical biology technique used by PNNL...

35

Initial Conditions  

Science Journals Connector (OSTI)

Before we can run a transient analysis, we must find the appropriate set of initial conditions for the variables. The most important requirement of initial conditions is that they do not contradict any of the ...

Michael Tiller Ph.D.

2001-01-01T23:59:59.000Z

36

INTRODUCTION Aggression and conflict occur ubiquitously throughout the animal  

E-Print Network [OSTI]

, 2007), and are considered costly (Castro et al., 2006; Hack, 1997). As a result, they occur at frequencies inversely related to their cost (Hack, 1997), although game theory can be used to assess whether

Tattersall, Glenn

37

MAGNETIC TOPOLOGIES: WHERE WILL RECONNECTION OCCUR ? Pascal Demoulin  

E-Print Network [OSTI]

1 MAGNETIC TOPOLOGIES: WHERE WILL RECONNECTION OCCUR ? Pascal D´emoulin Observatoire de Paris to power flares is thought to come from the coronal magnetic field. However, such energy release is efficient only at very small scales. Magnetic configurations with a complex topology, i.e. with sepa

Demoulin, Pascal

38

Improving Home Automation by Discovering Regularly Occurring Device Usage Patterns  

E-Print Network [OSTI]

Improving Home Automation by Discovering Regularly Occurring Device Usage Patterns Edwin O of two prediction algorithms, thus demonstrating multiple uses for a home automation system. Finally, we Several research efforts are focused on home automation. The Intelligent Room [2] uses an array of sensors

Cook, Diane J.

39

Naturally occurring crystalline phases: analogues for radioactive waste forms  

SciTech Connect (OSTI)

Naturally occurring mineral analogues to crystalline phases that are constituents of crystalline radioactive waste forms provide a basis for comparison by which the long-term stability of these phases may be estimated. The crystal structures and the crystal chemistry of the following natural analogues are presented: baddeleyite, hematite, nepheline; pollucite, scheelite;sodalite, spinel, apatite, monazite, uraninite, hollandite-priderite, perovskite, and zirconolite. For each phase in geochemistry, occurrence, alteration and radiation effects are described. A selected bibliography for each phase is included.

Haaker, R.F.; Ewing, R.C.

1981-01-01T23:59:59.000Z

40

Naturally Occurring Radioactive Materials in Cargo at US Borders  

SciTech Connect (OSTI)

In the U.S. and other countries, large numbers of vehicles pass through border crossings each day. The illicit movement of radioactive sources is a concern that has resulted in the installation of radiation detection and identification instruments at border crossing points. This activity is judged to be necessary because of the possibility of an act of terrorism involving a radioactive source that may include any number of dangerous radionuclides. The problem of detecting, identifying, and interdicting illicit radioactive sources is complicated by the fact that many materials present in cargo are somewhat radioactive. Some cargo contains naturally occurring radioactive material or technologically-enhanced naturally occurring radioactive material that may trigger radiation portal monitor alarms. Man-made radioactive sources, especially medical isotopes, are also frequently observed and produce alarms. Such nuisance alarms can be an operational limiting factor for screening of cargo at border crossings. Information about the nature of the radioactive materials in cargo that can interfere with the detection of radionuclides of concern is necessary. This paper provides such information for North American cargo, but the information may also be of use to border control officials in other countries. (PIET-43741-TM-361)

Kouzes, Richard T.; Ely, James H.; Evans, John C.; Hensley, Walter K.; Lepel, Elwood A.; McDonald, Joseph C.; Schweppe, John E.; Siciliano, Edward R.; Strom, Daniel J.; Woodring, Mitchell L.

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "worst-case conditions occurring" 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

Management of Naturally Occurring Radioactive Materials (NORM) in Canada  

Science Journals Connector (OSTI)

In Canada nuclear and radiological regulatory responsibilities are shared between the provinces/territories and the federal government. The Canadian Nuclear Safety Commission (CNSC) regulates nuclear fuel cycle materials and man?made radionuclides under the Nuclear Safety and Control Act (2000). The provinces and territories regulate NORM arising from industrial activities not involving the nuclear fuel cycle materials. Present guideline—Canadian Guidelines for the Management of Naturally Occurring Radioactive Materials (NORM)—was published in 2000 in order to bring uniformity to the management of NORM?related procedures to provide adequate radiation protection for workers and the general public. The basic premise of these guidelines is that the NORM?related activities should not be posing any greater hazard than those activities regulated under the Nuclear Safety and Control Act; these concepts are described in this paper.

Anar S. Baweja; Bliss L. Tracy

2008-01-01T23:59:59.000Z

42

Management of Naturally Occurring Radioactive Materials (NORM) in Canada  

SciTech Connect (OSTI)

In Canada, nuclear and radiological regulatory responsibilities are shared between the provinces/territories and the federal government. The Canadian Nuclear Safety Commission (CNSC) regulates nuclear fuel cycle materials and man-made radionuclides under the Nuclear Safety and Control Act (2000). The provinces and territories regulate NORM arising from industrial activities, not involving the nuclear fuel cycle materials. Present guideline--Canadian Guidelines for the Management of Naturally Occurring Radioactive Materials (NORM)--was published in 2000 in order to bring uniformity to the management of NORM-related procedures to provide adequate radiation protection for workers and the general public. The basic premise of these guidelines is that the NORM-related activities should not be posing any greater hazard than those activities regulated under the Nuclear Safety and Control Act; these concepts are described in this paper.

Baweja, Anar S.; Tracy, Bliss L. [Radiation Protection Bureau, Health Canada, Ottawa, Ontario (Canada)

2008-08-07T23:59:59.000Z

43

Acoustic scattering by bubbles in naturally occurring mud sediments  

Science Journals Connector (OSTI)

Naturally occurring sediment mud contains bubbles created by decaying vegetable matter. Work reported by Preston Wilson etal. (ca. 2007) has determined via x-ray tomography systems that mud bubbles are not spherical in shape but resemble oblate spheroids and are “inhomogeneously distributed.” These features are explained in terms of the card-house structure of mud with an adaptation of the fracture mechanics ideas of Boudreau etal. (ca. 2002). The scattering of sound at low frequencies by such nonspherical bubbles has both monopole and dipole components. The scatteredwave associated with the monopole term is proportional to the bubble volume. The dipole term involves an effective entrained mass tensor which is found by a solution of Laplace's equation. All bubbles regardless of shape have a smallest resonance frequency and the scattered radiation near the resonance frequency is monopole in character. Example solutions for the resonance frequencies and the scattering near resonance are given for oblate spheroidal bubbles and a suggested interpolation from low frequencies to resonance frequencies is given. A discussion is also given of how one can make use of the range-evolving form of compact-source generated pulses to infer information about the bubbles near the propagation path.

Allan D. Pierce; Willam M. Carey

2011-01-01T23:59:59.000Z

44

Committed effective dose from naturally occuring radionuclides in shellfish  

Science Journals Connector (OSTI)

Recognizing their importance in the average Malaysian daily diet, the radioactivity concentrations in mollusc- and crustacean-based food have been determined for key naturally occuring radionuclides. Fresh samples collected from various maritime locations around peninsular Malaysia have been processed using standard procedures; the radionuclide concentrations being determined using an \\{HPGe\\} ?-ray spectrometer. For molluscs, assuming secular equilibrium, the range of activities of 238U (226Ra), 232Th (228Ra) and 40K were found to be 3.28±0.35 to 5.34±0.52, 1.20±0.21 to 2.44±0.21 and 118±6 to 281±14 Bq kg?1 dry weight, respectively. The respective values for crustaceans were 3.02±0.57 to 4.70±0.52, 1.38±0.21 to 2.40±0.35 and 216±11 to 316±15 Bq kg?1. The estimated average daily intake of radioactivity from consumption of molluscs are 0.37 Bq kg?1 for 238U (226Ra), 0.16 Bq kg?1 for 232Th (228Ra) and 18 Bq kg?1 for 40K; the respective daily intake values from crustaceans are 0.36 Bq kg?1, 0.16 Bq kg?1 and 23 Bq kg?1. Associated annual committed effective doses from molluscs are estimated to be in the range 21.3 to 34.7 ?Sv for 226Ra, 19.3 to 39.1 ?Sv for 228Ra and 17.0 to 40.4 ?Sv for 40K. For crustaceans, the respective dose ranges are 19.6 to 30.5 ?Sv, 22.0 to 38.4 ?Sv and 31.1 to 45.5 ?Sv, being some several times world average values.

Mayeen Uddin Khandaker; Norfadira Binti Wahib; Yusoff Mohd. Amin; D.A. Bradley

2013-01-01T23:59:59.000Z

45

Naturally occurring arsenic in the groundwater at the Kansas City Plant  

SciTech Connect (OSTI)

This report describes an investigation concerning the presence of arsenic in concentrations exceeding 0.4 mg/L in the groundwater under the Department of Energy's Kansas City Plant (KCP). The study consisted of four distinct phases: a thorough review of the technical literature, a historical survey of arsenic use at the facility, a laboratory study of existing techniques for determining arsenic speciation, and a field program including water, soil, and sediment sampling. The historical survey and literature review demonstrated that plant activities had not released significant quantities of arsenic to the environment but that similar occurrences of arsenic in alluvial groundwater are widespread in the midwestern United States. Laboratory studies showed that a chromatographic separation technique was necessary to accurately determine arsenic speciation for the KCP groundwater samples. Field studies revealed that naturally occurring reducing conditions prevalent in the subsurface are responsible for dissolving arsenic previously sorbed by iron oxides. Indeed, the data demonstrated that the bulk arsenic concentration of site subsoils and sediments is {approximately}7 mg/kg, whereas the arsenic content of iron oxide subsamples is as high as 84 mg/kg. Literature showed that similar concentrations of arsenic in sediments occur naturally and are capable of producing the levels of arsenic found in groundwater monitoring wells at the KCP. The study concludes, therefore, that the arsenic present in the KCP groundwater is the result of natural phenomena. 44 refs., 8 figs., 14 tabs.

Korte, N.E.

1990-12-01T23:59:59.000Z

46

The existence of supercooled liquid water at 150?K  

Science Journals Connector (OSTI)

... previously. The growth conditions used here produce optically flat non-porous water films,. A roughened interface between the isotopic layers, which in the worst case would result in intermixing ...

R. Scott Smith; Bruce D. Kay

1999-04-29T23:59:59.000Z

47

Fault tree analysis of commonly occurring medication errors and methods to reduce them  

E-Print Network [OSTI]

Medication errors occur in health care settings and they continue to Pose significant challenges to hospital administrators, Physicians, Pharmacists and nurses. These medication errors may occur due to a lack of knowledge, substandard performance...

Cherian, Sandhya Mary

2012-06-07T23:59:59.000Z

48

Have sudden large releases of methane from geological reservoirs occurred since the Last Glacial Maximum, and could such releases occur again?  

Science Journals Connector (OSTI)

...source. Should marked warming occur, resulting...dioxide (reducing the global warming potential), but...fossil fuels such as coal and oil that have higher warming impact per unit of...destabilization with global warming. Clathrate...

2002-01-01T23:59:59.000Z

49

“Severe” or “serious” infusion reactions occurred in 18 treatment-failure gout patients who received pegloticase  

Science Journals Connector (OSTI)

...“Severe” or “serious” infusion reactions occurred in 18 treatment-failure gout patients who received pegloticase [Puricase] while...

2008-03-01T23:59:59.000Z

50

Subsidiary Condition in Quantum Electrodynamics  

Science Journals Connector (OSTI)

The subsidiary condition ?A?(+)?x?|n?=0, usually known as the "Gupta-Bleuler" condition, is shown to be inadequate as a criterion for defining physical states in quantum electrodynamics in the Lorentz gauge. The condition is shown not to be covariant and to fail to define state vectors that remain in the physical subspace. An alternative subsidiary condition, which is satisfactory, is discussed and is shown to require an extensively different formulation of the collision problem in quantum electrodynamics. Some possible physical consequences of the inadequacy of ?A?(+)?x?|n?=0 are proposed; these include effects in the decays of short-lived particles, and the fact that in some types of strong interactions, acting simultaneously with electromagnetic ones, S-matrix elements may occur which predict transitions from the physical space into the part of space in which the subsidiary condition is violated. The solution to the collision problem for stable charged particles that have only electromagnetic interactions is shown to be identical to that obtainable from the present theory.

Kurt Haller and Leon F. Landovitz

1968-07-25T23:59:59.000Z

51

Radiation port dermatophytosis: Tinea corporis occurring at the site of irradiated skin  

E-Print Network [OSTI]

Radiation port dermatophytosis: Tinea corporis occurring atTexas Abstract Radiation port dermatophytosis is thethe area of the radiotherapy port. Including this patient, 4

Casamiquela, Kathleen M; Cohen, Philip R

2012-01-01T23:59:59.000Z

52

E-Print Network 3.0 - accident excursion occurring Sample Search...  

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

University Collection: Geosciences 4 U of L Campus AccidentIncident Report Automobile AccidentIncident Page 1 of 2 University of Lethbridge Summary: accidents that occur...

53

E-Print Network 3.0 - annually occurring aerosol Sample Search...  

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

in Radiative Transfer Encyclopedia of Atmospheric Science Summary: system. Naturally occurring aerosols reflect some of the incident solar radiation back to space before... in...

54

Importance of the Equlibrium Node in Preventing the Voltage Collapse Occurs in the Wind Power System  

E-Print Network [OSTI]

Importance of the Equlibrium Node in Preventing the Voltage Collapse Occurs in the Wind Power collapse will occurs in a wind power system is discussed next. The method of power flow calculation is the specific analysis of a given simplified wind power system. Keywords--voltage collapse; Newton

Lavaei, Javad

55

Hydroxymethyl hydroperoxide and bis(hydroxymethyl) peroxide from gas-phase ozonolysis of naturally occurring alkenes  

Science Journals Connector (OSTI)

... these compounds, 2-chloropropene, and the naturally-occurring alkenes ethene, /3-pinene, 2-carene and limonene. In every reaction where O3/alkene was ^1, we found BHMP ... .65\t0.84\t0.10

S. Gäb; E. Hellpointner; W. V. Turner; F. Ko?te

1985-08-08T23:59:59.000Z

56

In-situ remediation of naturally occurring radioactive materials with high-permeability hydraulic fracturing  

E-Print Network [OSTI]

This thesis addresses the problem of removal of Naturally Occurring Radioactive Materials, NORM, and describes an effective alternative to the current treatment method for their removal. High-pen-meability fracturing, recently established...

Demarchos, Andronikos Stavros

2012-06-07T23:59:59.000Z

57

The role of naturally occurring waterholes in determining the distribution of Florida Key Deer  

E-Print Network [OSTI]

The purpose of my research was to test the hypothesis that the availability of fresh, naturally occurring water may limit the distribution of Florida Key Deer (Odocoileus virginianus clavium). More specifically, I was trying to determine...

Kim, Ji Yeon

2009-05-15T23:59:59.000Z

58

Terms and Conditions  

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

Terms and Conditions Terms and Conditions Terms and Conditions As a premier national research and development laboratory, LANL seeks to do business with qualified companies that offer value and high quality products and services. Contact Small Business Office (505) 667-4419 Email Use information below as guideline to doing business An "Appendix SFA-1" contains FAR and DEAR Clauses that are incorporated by reference into a particular subcontract. "Exhibit A General Conditions" are the general terms and conditions applicable to a particular subcontract. Note: The contents of the SFA-1 and Exhibit A (below) are not the only terms and conditions that will be in a LANS subcontract but represent the terms that generally do not change in a particular type of procurement. The

59

Descriptions of selected accidents that have occurred at nuclear reactor facilities  

SciTech Connect (OSTI)

This report was prepared at the request of the President's Commission on the Accident at Three Mile Island to provide the members of the Commission with some insight into the nature and significance of accidents that have occurred at nuclear reactor facilities in the past. Toward that end, this report presents a brief description of 44 accidents which have occurred throughout the world and which meet at least one of the severity criteria that were established.

Bertini, H.W.

1980-04-01T23:59:59.000Z

60

Terms and Conditions  

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

Testbed Results Current Testbed Research Proposal Process Terms and Conditions Dark Fiber Testbed Performance (perfSONAR) Software & Tools Development Partnerships...

Note: This page contains sample records for the topic "worst-case conditions occurring" 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

Running Boundary Condition  

E-Print Network [OSTI]

In this paper we argue that boundary condition may run with energy scale. As an illustrative example, we consider one-dimensional quantum mechanics for a spinless particle that freely propagates in the bulk yet interacts only at the origin. In this setting we find the renormalization group flow of U(2) family of boundary conditions exactly. We show that the well-known scale-independent subfamily of boundary conditions are realized as fixed points. We also discuss the duality between two distinct boundary conditions from the renormalization group point of view. Generalizations to conformal mechanics and quantum graph are also discussed.

Ohya, Satoshi; Tachibana, Motoi

2010-01-01T23:59:59.000Z

62

Running Boundary Condition  

E-Print Network [OSTI]

In this paper we argue that boundary condition may run with energy scale. As an illustrative example, we consider one-dimensional quantum mechanics for a spinless particle that freely propagates in the bulk yet interacts only at the origin. In this setting we find the renormalization group flow of U(2) family of boundary conditions exactly. We show that the well-known scale-independent subfamily of boundary conditions are realized as fixed points. We also discuss the duality between two distinct boundary conditions from the renormalization group point of view. Generalizations to conformal mechanics and quantum graph are also discussed.

Satoshi Ohya; Makoto Sakamoto; Motoi Tachibana

2010-05-25T23:59:59.000Z

63

When Does Aid Conditionality Work?  

E-Print Network [OSTI]

institutions may tailor conditions for success because theytailor their conditions for success, and they are especially

Montinola, Gabriella R.

2010-01-01T23:59:59.000Z

64

Simplified Space Conditioning  

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

Simplified Space Conditioning Simplified Space Conditioning Duncan Prahl, RA IBACOS, Inc. Building America Technical Update April 29, 2013 Simplified Space Conditioning Rethinking HVAC Design * Traditional Method - Assume envelope losses dictate the load - Room by room load analysis - Pick Equipment and distribute to meet the load in each room * New Method - Consider how the occupants live in the building - Seriously consider internal gains in both heating and cooling - Consider ventilation strategy - Design system Simplified Space Conditioning If you are: * A production builder * Participating in "above code" programs * Following ACCA Manual RS or ASHRAE 55 * Need to prove "delivering heat to each habitable room" * Concerned about litigation * Play it safe, Use Manual J, S & D and condition every

65

ARM - Measurement - Surface condition  

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

condition condition ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Surface condition State of the surface, including vegetation, land use, surface type, roughness, and such; often provided in model output. Categories Surface Properties Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments NAV : Navigational Location and Attitude SURFLOG : SGP Surface Conditions Observations by Site Technicians S-TABLE : Stabilized Platform MET : Surface Meteorological Instrumentation

66

Terms and Conditions  

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

Terms and Conditions Terms and Conditions R&D Overview 100G Testbed Testbed Description Testbed Results Current Testbed Research Proposal Process Terms and Conditions Virtual Circuits (OSCARS) Performance (perfSONAR) Tools Development Green Networking Authentication & Trust Federation (ATF) Partnerships Contact Us Technical Assistance: 1 800-33-ESnet (Inside the US) 1 800-333-7638 (Inside the US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems: trouble@es.net Provide Web Site Feedback: info@es.net Terms and Conditions Researchers must provide ESnet copies of any articles, presentations, and publications based on testbed research for posting on the ESnet Testbed web site. All publications based on work conducted on the testbed must include the following statement:

67

Fuel-related accidents occur across the country at the rate of more than one per  

E-Print Network [OSTI]

Fuel-related accidents occur across the country at the rate of more than one per week. Fuel exhaustion, fuel starvation, or the failure to switch tanks at the correct time caused 120 accidents in 2002, these and other problems can be avoided with proper fueling procedures. RESPONSIBILITY STARTS WITH THE AIRPORT

Minnesota, University of

68

The red porgy, Pagrus pagrus, occurs in the eastern Atlantic from the Brit-  

E-Print Network [OSTI]

723 The red porgy, Pagrus pagrus, occurs in the eastern Atlantic from the Brit- ish Isles south and Vergara, 1978). In the Gulf of Mexico (GOM), red porgy are usu- ally found near hard-bottom areas off that red porgies are most common over inshore live-bottom habitats and over shelf-edge, rocky-rub- ble

69

"Climate change is sure to occur in some form." The study of climate impacts notes  

E-Print Network [OSTI]

"Climate change is sure to occur in some form." 1 #12;The study of climate impacts notes how scientists generally agree that humans are changing the climate, and that if we continue pumping carbon we learn from past climate variations? How can we best adapt to climate change? This report attempts

70

Jet-like circulations occur in the `simple' geometries of gas planets and Earth's  

E-Print Network [OSTI]

#12;Jet-like circulations occur in the `simple' geometries of gas planets and Earth's liquid The Jet Stream Conundrum Baldwin, Rhines, Huang & McIntyre, Nature 2007 #12;For Earth's oceans, density reverses upscale cascade of 2DT breaks momentum conservation by exchange with solid earth via pressure drag

71

Figure 1. Bipartite network showing how candidate SNPs co-occur across Colombian  

E-Print Network [OSTI]

Figure 1. Bipartite network showing how candidate SNPs co-occur across Colombian patients with one Study of Chronic Metabolic Diseases in Colombians Maria A. Caro MSc1,2 , Bryant Dang BS1 , Gabriel, are associated with key demographic and clinical variables in Colombians with metabolic disease. The results

Bhavnani, Suresh K.

72

Movement of oxygen from the atmosphere to the mitochondria occurs via several convective and diffusive steps  

E-Print Network [OSTI]

4111 Movement of oxygen from the atmosphere to the mitochondria occurs via several convective and diffusive steps (Weibel et al., 1981). In mammals, maximal rate of oxygen consumption (VOmax) is not limited by any one step of the oxygen cascade; rather limitations to VOmax are distributed across all steps

Bennett, Albert F.

73

IPR Conditions, 25 January 2006 1 Intellectual Property Rights Conditions  

E-Print Network [OSTI]

IPR Conditions, 25 January 2006 1 Intellectual Property Rights Conditions for Collaborative Research Projects (IPR Conditions) I. GENERAL PRINCIPLES These rules should promote the protection guarantee the protection of the participants' intellectual assets. These IPR Conditions establish rules

De Cindio, Fiorella

74

ECWEBTermsandConditions.doc  

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

US DEPARTMENT OF ENERGY US DEPARTMENT OF ENERGY ELECTRONIC COMMERCE PROCEDURES, TERMS AND CONDITIONS Version 1.0 May 1, 1998 PROCEDURES What follows prescribes the general procedures and policies to be followed when Electronic Data Interchange (EDI) is used for transmitting requests for quote, quotations, purchase orders, or other business information in lieu of creating one or more paper documents normally associated with conducting business with the Government. See the Terms and Conditions section below for a list of the standard FAR (Federal Acquisition Regulation) and DEAR (Department of Energy Acquisition Regulation) clauses and provisions mandated to be included in Government contracting actions. The Terms and Conditions together with any clauses specified in the specific contract transaction,

75

Determination of fallout 137Cs and naturally occuring gamma-ray emitters in sediments  

Science Journals Connector (OSTI)

With the advent of the nuclear age, a number of radionuclides were introduced into Man's natural radiation environment. Two of these radionuclides, cesium-137 and strontium-90, are of particular interest because of their long half lives and biological importance. Research at the U.S.D.A. Sedimentation Laboratory is being conducted on the movement and redistribution of 137Cs and the naturally occuring gamma-ray emitting radionuclides, thorium, uranium and potassium, in relation to cultural and erosional processes within watersheds. (1,2) This technical note describes the methods used at the U.S.D.A. Sedimentation Laboratory to determine137Cs and the naturally occurring gamma-ray emitters in sediments.

Jerry C. Ritchie; J.R. McHenry

1973-01-01T23:59:59.000Z

76

C6H5Br+ f C6H5 + + Br Occurs via Orbiting Transition State  

E-Print Network [OSTI]

. In the phase space theory (PST),21 the transition state is located at the barrier maximum on the effective the transition state switching.25-27 Halogen loss from halobenzene molecular ions (C6H5X+·, X ) Cl, Br, I) hasC6H5Br+· f C6H5 + + Br· Occurs via Orbiting Transition State Sang-Hyun Lim, Joong Chul Choe

Kim, Myung Soo

77

Radiological Dose Assessment Related to Management of Naturally Occurring Radioactive Materials Generated by the Petroleum Industry  

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

Tebes is affiliated with the University of Illinois. Tebes is affiliated with the University of Illinois. ANL/EAD-2 Radiological Dose Assessment Related to Management of Naturally Occurring Radioactive Materials Generated by the Petroleum Industry by K.P. Smith, D.L. Blunt, G.P. Williams, and C.L. Tebes * Environmental Assessment Division Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439 September 1996 Work sponsored by the United States Department of Energy, Office of Policy iii CONTENTS ACKNOWLEDGMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii NOTATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii ABSTRACT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

78

Existence of long-lived isomeric states in naturally-occurring neutron-deficient Th isotopes  

SciTech Connect (OSTI)

Four long-lived neutron-deficient Th isotopes with atomic mass numbers 211 to 218 and abundances of (1-10)x10{sup -11} relative to {sup 232}Th have been found in a study of naturally-occurring Th using inductively coupled plasma-sector field mass spectrometry. It is deduced that long-lived isomeric states exist in these isotopes. The hypothesis that they might belong to a new class of long-lived high spin super- and hyperdeformed isomeric states is discussed.

Marinov, A.; Kashiv, Y. [Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem 91904 (Israel); Rodushkin, I. [Analytica AB, Aurorum 10, S-977 75 Luleaa (Sweden); Halicz, L.; Segal, I. [Geological Survey of Israel, 30 Malkhei Israel St., Jerusalem 95501 (Israel); Pape, A. [IPHC-UMR7178, IN2P3-CNRS/ULP, BP 28, F-67037 Strasbourg cedex 2 (France); Gentry, R. V. [Earth Science Associates, P.O. Box 12067, Knoxville, Tennessee 37912-0067 (United States); Miller, H. W. [P. O. Box 1092, Boulder, Colorado 80306-1092 (United States); Kolb, D. [Department of Physics, University GH Kassel, D-34109 Kassel (Germany); Brandt, R. [Kernchemie, Philipps University, D-35041 Marburg (Germany)

2007-08-15T23:59:59.000Z

79

Fuel gas conditioning process  

DOE Patents [OSTI]

A process for conditioning natural gas containing C.sub.3+ hydrocarbons and/or acid gas, so that it can be used as combustion fuel to run gas-powered equipment, including compressors, in the gas field or the gas processing plant. Compared with prior art processes, the invention creates lesser quantities of low-pressure gas per unit volume of fuel gas produced. Optionally, the process can also produce an NGL product.

Lokhandwala, Kaaeid A. (Union City, CA)

2000-01-01T23:59:59.000Z

80

High voltage pulse conditioning  

DOE Patents [OSTI]

Apparatus for conditioning high voltage pulses from particle accelerators in order to shorten the rise times of the pulses. Flashover switches in the cathode stalk of the transmission line hold off conduction for a determinable period of time, reflecting the early portion of the pulses. Diodes upstream of the switches divert energy into the magnetic and electrostatic storage of the capacitance and inductance inherent to the transmission line until the switches close.

Springfield, Ray M. (Sante Fe, NM); Wheat, Jr., Robert M. (Los Alamos, NM)

1990-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "worst-case conditions occurring" 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

Antibody-mediated neutralization of Ebola virus can occur by two distinct mechanisms  

SciTech Connect (OSTI)

Human Ebola virus causes severe hemorrhagic fever disease with high mortality and there is no vaccine or treatment. Antibodies in survivors occur early, are sustained, and can delay infection when transferred into nonhuman primates. Monoclonal antibodies (mAbs) from survivors exhibit potent neutralizing activity in vitro and are protective in rodents. To better understand targets and mechanisms of neutralization, we investigated a panel of mAbs shown previously to react with the envelope glycoprotein (GP). While one non-neutralizing mAb recognized a GP epitope in the nonessential mucin-like domain, the rest were specific for GP1, were neutralizing, and could be further distinguished by reactivity with secreted GP. We show that survivor antibodies, human KZ52 and monkey JP3K11, were specific for conformation-dependent epitopes comprising residues in GP1 and GP2 and that neutralization occurred by two distinct mechanisms; KZ52 inhibited cathepsin cleavage of GP whereas JP3K11 recognized the cleaved, fusion-active form of GP.

Shedlock, Devon J., E-mail: shedlock@mail.med.upenn.ed [Biodefense Research Section, Vaccine Research Center, National Institute for Allergy and Infectious Disease, National Institutes of Health, 40 Convent Drive, MSC 3005, Bethesda, MD 20814 (United States); Bailey, Michael A., E-mail: mike.bailey@taurigroup.co [Biodefense Research Section, Vaccine Research Center, National Institute for Allergy and Infectious Disease, National Institutes of Health, 40 Convent Drive, MSC 3005, Bethesda, MD 20814 (United States); Popernack, Paul M. [Biodefense Research Section, Vaccine Research Center, National Institute for Allergy and Infectious Disease, National Institutes of Health, 40 Convent Drive, MSC 3005, Bethesda, MD 20814 (United States); Cunningham, James M. [Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115 (United States); Burton, Dennis R. [Department of Immunology, Scripps Research Institute, La Jolla, CA 92037 (United States); Department of Molecular Biology, Scripps Research Institute, La Jolla, CA 92037 (United States); Sullivan, Nancy J., E-mail: nsullivan@nih.go [Biodefense Research Section, Vaccine Research Center, National Institute for Allergy and Infectious Disease, National Institutes of Health, 40 Convent Drive, MSC 3005, Bethesda, MD 20814 (United States)

2010-06-05T23:59:59.000Z

82

Structure and composition of phases occurring in austenitic stainless steels in thermal and irradiation environments  

SciTech Connect (OSTI)

Transmission electron diffraction techniques coupled with quantitative x-ray energy dispersive spectroscopy have been used to characterize the phases which develop in austenitic stainless steels during exposure to thermal and to irradiation environments. In AISI 316 and Ti-modified stainless steels some thirteen phases have been identified and characterized in terms of their crystal structure and chemical composition. Irradiation does not produce any completely new phases. However, as a result of radiation-induced segregation principally of Ni and Si, and of enhanced diffusion rates, several major changes in phase relationships occur during irradiation. Firstly, phases characteristic of remote regions of the phase diagram appear unexpectedly and dissolve during postirradiation annealing (radiation-induced phases). Secondly, some phases develop with their compositions significantly altered by the incorporation of Ni or Si (radiation-modified phases).

Lee, E.H.; Maziasz, P.J.; Rowcliffe, A.F.

1980-01-01T23:59:59.000Z

83

On the initial phenomena occurring in lead/lead collisions at relativistic energies  

E-Print Network [OSTI]

A new study of the initial phenomena occurring in the fireball should confirm the predicted creation of a new state of nuclear matter having a lifetime of 0.17 yoctosecond and releasing an energy of 3.87 GeV. The energy-time uncertainty relation might be connected with an up to now unsuspected momentum-position uncertainty relation holding in a three-dimensional time. This new point of view leads to the interpretation of the charge of a particle as being a rotational motion in time, to a new interpretation of inertia, and to a new interpretation of the color of a particle. The transverse momentum observed in the study of the fireball might be the signature of this motion in time of the charge.

C. Ythier; G. Mouze

2012-12-13T23:59:59.000Z

84

Model independent determination of the spin of the {sup 180}Ta naturally occurring isomer  

SciTech Connect (OSTI)

The hyperfine structures of the 33715.27 cm{sup -1} and 33706.47 cm{sup -1} transitions from the ground state of singly ionized Ta have been measured by collinear laser spectroscopy. The structures were found to contain a large second order contribution. From fitting the observed hyperfine components for both {sup 181}Ta and the {sup 180}Ta naturally occurring isomer it was possible to determine the first and second order hyperfine structure coefficients. As no model independent determination of the nuclear spin of the {sup 180}Ta isomer has been performed, fitting was attempted for a range of spins. A clear chi-squared minimum is obtained for a nuclear spin of 9, in agreement with model dependent measurements.

Bissell, M. L.; Baczynska, K.; Forest, D. H.; Gardner, M. D.; Tungate, G. [School of Physics and Astronomy, The University of Birmingham, Edgbaston, Birmingham B15 2TT (United Kingdom); Billowes, J.; Campbell, P.; Cheal, B.; Tordoff, B. [Schuster Laboratory, The University of Manchester, Manchester M13 9PL (United Kingdom); Eronen, T.; Moore, I. D.; Aeystoe, J. [Department of Physics, University of Jyvaeskylae, PB 35 (YFL), FIN-40014 Jyvaeskylae (Finland)

2006-10-15T23:59:59.000Z

85

Some mismatches occurred when simulating fractured reservoirs as homogeneous porous media  

SciTech Connect (OSTI)

The understanding of transport processes that occur in naturally fractured geothermal systems is far from being complete. Often, evaluation and numerical simulations of fractured geothermal reservoirs, are carried out by assuming equivalent porous media and homogeneous petrophysical properties within big matrix blocks. The purpose of this paper, is to present a comparison between results obtained from numerical studies of a naturally fractured reservoir treated as a simple porous medium and the simulation of some real aspects of the fractured reservoir. A general conclusion outlines the great practical importance of considering even approximately, the true nature of such systems. Our results show that the homogeneous simplified evaluation of the energy resource in a fractured system, could result in unrealistic estimates of the reservoir capacity to generate electricity.

Mario Cesar Suarez Arriaga; Fernando Samaniego V.; Fernando Rodriguez

1996-01-24T23:59:59.000Z

86

Multigraph Conditions for Multistability, Oscillations  

E-Print Network [OSTI]

[10]. Some common biochemical oscillators, such as calcium oscillations [11] and glycolytic of both. Many biochemical oscillator models contain an auto- catalytic loop, which occurs when

Craciun, Gheorghe

87

Alternatives for the disposal of NORM (naturally occurring radioactive materials) wastes in Texas  

SciTech Connect (OSTI)

Some of the Texas wastes containing naturally occurring radioactive materials (NORM) have been disposed of in a uranium mill tailings impoundment. There is currently no operating disposal facility in Texas to accept these wastes. As a result, some wastes containing extremely small amounts of radioactivity are sent to elaborate disposal sites at extremely high costs. The Texas Low-Level Radioactive Waste Disposal Authority has sponsored a study to investigate lower cost, alternative disposal methods for certain wastes containing small quantities of NORM. This paper presents the results of a multipathway safety analysis of various scenarios for disposing of wastes containing limited quantities of NORM in Texas. The wastes include pipe scales and sludges from oil and gas production, residues from rare-earth mineral processing, and water treatment resins, but exclude large-volume, diffuse wastes (coal fly ash, phosphogypsum). The purpose of the safety analysis is to define concentration and quantity limits for the key nuclides of NORM that will avoid dangerous radiation exposures under different waste disposal scenarios.

Nielson, K.K.; Rogers, V.C. (Rogers Associates Engineering Corporation, Salt Lake City, UT (USA)); Pollard, C.G. (Texas Low-Level Radioactive Waste Disposal Authority, Austin (USA))

1989-11-01T23:59:59.000Z

88

Background in the context of land contaminated with naturally occurring radioactive material  

Science Journals Connector (OSTI)

The financial implications of choosing a particular threshold for clearance of radioactively contaminated land are substantial, particularly when one considers the volume of naturally occurring radioactive material (NORM) created each year by the production and combustion of fossil fuels and the exploitation of industrial minerals. Inevitably, a compromise needs to be reached between the level of environmental protection sought and the finite resources available for remediation. In the case of natural series radionuclides, any anthropogenic input is always superimposed on the inventory already present in the soil; this 'background' inventory is conventionally disregarded when assessing remediation targets. Unfortunately, the term is not well defined and the concept of 'background dose' is open to alternative interpretations. In this paper, we address the issue of natural background from a geochemical rather than from a solely radiological perspective, illustrating this with an example from the china clay industry. We propose a simple procedure for decision making based on activity concentrations of primordial radionuclides and their progeny. Subsequent calculations of dose need to take into account the mineralogical and chemical characteristics of the contamination, which in the case of NORM are invariably reflected in uranium series disequilibrium.

D Read; G D Read; M C Thorne

2013-01-01T23:59:59.000Z

89

Measurement of the acoustic pressure distribution occurring around an aerial substation adjacent to apartment buildings  

Science Journals Connector (OSTI)

The subject matter of the research work presented in this paper refers to the measurements of the values of the acoustic pressure levels (noise) occurring around a main feeding?point aerial substation adjacent to apartment buildings. The paper presents the values of the noise accompanying the particular power devices mainly transformers during their regular operation. The main aim of this research work was the comparison and assessment of the acoustic pressure values measured with the permissible values defined by environmental standards binding in Poland. The research analysis carried out proved that during a long?term operation of power appliances installed in substations the acoustic pressure level that they emit into the environment is not constant but is subject to changes. Thus the increase of the noise level above the permissible values can be the cause of violation of environmental standards. Due to a significant increase of people's awareness and readiness to claim their rights the main consequence of violating the standards is a growing number of claims. Therefore it is imperative that the level of the acoustic pressure be monitored during routine tests especially around high?power transformers.

Sebastian Borucki; Tomasz Boczar; Andrzej Cichon

2008-01-01T23:59:59.000Z

90

An overview of naturally occurring radioactive materials (NORM) in the petroleum industry  

SciTech Connect (OSTI)

Oil and gas extraction and processing operations sometimes accumulate naturally occurring radioactive materials (NORM) at concentrations above normal in by-product waste streams. Results from NORM surveys indicate that radionuclide concentrations can be quite variable, ranging from undetectable to extremely high levels. To date, efforts to characterize the geographic distribution of NORM have been limited by poor statistical representation. In addition, the fate of NORM in the environment has not been fully defined, and few human health risk assessment have been conducted. Both the petroleum industry and regulators are becoming increasingly concerned about the presence of NORM. At present, most existing federal environmental regulations do not address oil and gas NORM, and only a few states have developed regulatory programs. Available data suggest that the occurrence of NORM (and associated health risks) is significant enough to warrant increased regulatory control. However, before these regulations can be developed, additional research is needed to (1) better characterize the occurrence and distribution of NORM throughout the industry, (2) quantify hazards posed by NORM to industry workers and the general public, and (3) develop effective waste treatment and minimization technologies that will lower the risk associated with NORM and reduce disposal costs.

Smith, K.P.

1992-12-01T23:59:59.000Z

91

Solar: hourly solar (direct normal (DNI), global horizontal (GHI), and  

Open Energy Info (EERE)

Brazil from NREL Brazil from NREL Dataset Summary Description (Abstract): Each data file is a set of hourly values of solar radiation and meteorological elements for a 1-year period. Solar radiation is modeled using the NREL METSTAT model, with surface observed cloud cover being the principal model input. Each container file contains up to 30 yearly files for one station, plus the Typical Meteorological Year (TMY) file for the selected station, plus documentation files and a TMY data reader file for use with Microsoft Excel. (Purpose): Simulations (Supplemental Information): The intended use of these data files is for computer simulations of solar energy conversion systems and building systems. The yearly data may be suitable for designing systems and their components to meet the worst-case conditions occurring at a

92

Solar: hourly solar (direct normal (DNI), global horizontal (GHI), and  

Open Energy Info (EERE)

Central America from NREL Central America from NREL Dataset Summary Description (Abstract): Each data file is a set of hourly values of solar radiation and meteorological elements for a 1-year period. Solar radiation is modeled using the NREL METSTAT model, with surface observed cloud cover being the principal model input. Each container file contains up to 30 yearly files for one station, plus the Typical Meteorological Year (TMY) file for the selected station, plus documentation files and a TMY data reader file for use with Microsoft Excel. (Purpose): Simulations (Supplemental Information): The intended use of these data files is for computer simulations of solar energy conversion systems and building systems. The yearly data may be suitable for designing systems and their components to meet the worst-case conditions occurring at a

93

Solar: hourly solar (direct normal (DNI), global horizontal (GHI), and  

Open Energy Info (EERE)

Ghana from NREL Ghana from NREL Dataset Summary Description (Abstract): Each data file is a set of hourly values of solar radiation and meteorological elements for a 1-year period. Solar radiation is modeled using the NREL METSTAT model, with surface observed cloud cover being the principal model input. Each container file contains up to 30 yearly files for one station, plus the Typical Meteorological Year (TMY) file for the selected station, plus documentation files and a TMY data reader file for use with Microsoft Excel. (Purpose): Simulations (Supplemental Information): The intended use of these data files is for computer simulations of solar energy conversion systems and building systems. The yearly data may be suitable for designing systems and their components to meet the worst-case conditions occurring at a

94

Solar: hourly solar (direct normal (DNI), global horizontal (GHI), and  

Open Energy Info (EERE)

Sri Lanka from NREL Sri Lanka from NREL Dataset Summary Description (Abstract): Each data file is a set of hourly values of solar radiation and meteorological elements for a 1-year period. Solar radiation is modeled using the NREL METSTAT model, with surface observed cloud cover being the principal model input. Each container file contains up to 30 yearly files for one station, plus the Typical Meteorological Year (TMY) file for the selected station, plus documentation files and a TMY data reader file for use with Microsoft Excel. (Purpose): Simulations (Supplemental Information): The intended use of these data files is for computer simulations of solar energy conversion systems and building systems. The yearly data may be suitable for designing systems and their components to meet the worst-case conditions occurring at a

95

Solar: hourly solar (direct normal (DNI), global horizontal (GHI), and  

Open Energy Info (EERE)

Ethiopia from NREL Ethiopia from NREL Dataset Summary Description (Abstract): Each data file is a set of hourly values of solar radiation and meteorological elements for a 1-year period. Solar radiation is modeled using the NREL METSTAT model, with surface observed cloud cover being the principal model input. Each container file contains up to 30 yearly files for one station, plus the Typical Meteorological Year (TMY) file for the selected station, plus documentation files and a TMY data reader file for use with Microsoft Excel. (Purpose): Simulations (Supplemental Information): The intended use of these data files is for computer simulations of solar energy conversion systems and building systems. The yearly data may be suitable for designing systems and their components to meet the worst-case conditions occurring at a

96

Semiclassical energy conditions and wormholes  

E-Print Network [OSTI]

We consider the nonlinear energy conditions and their quantum extensions. These new energy conditions behave much better than the usual pointwise energy conditions in the presence of semiclassical quantum effects. Analogous quantum extensions for the linear energy conditions are not always satisfied as one enters the quantum realm, but they can be used to constrain the violation of the classical conditions. Thus, the existence of wormholes supported by a fluid which violates the null energy condition in a controlled way is of particular interest.

Martin-Moruno, Prado

2014-01-01T23:59:59.000Z

97

Semiclassical energy conditions and wormholes  

E-Print Network [OSTI]

We consider the nonlinear energy conditions and their quantum extensions. These new energy conditions behave much better than the usual pointwise energy conditions in the presence of semiclassical quantum effects. Analogous quantum extensions for the linear energy conditions are not always satisfied as one enters the quantum realm, but they can be used to constrain the violation of the classical conditions. Thus, the existence of wormholes supported by a fluid which violates the null energy condition in a controlled way is of particular interest.

Prado Martin-Moruno

2014-11-17T23:59:59.000Z

98

Naturally occurring heavy radioactive elements in the geothermal microcosm of the Los Azufres (Mexico) volcanic complex  

Science Journals Connector (OSTI)

Abstract The Los Azufres geothermal complex of central Mexico is characterized by fumaroles and boiling hot-springs. The fumaroles form habitats for extremophilic mosses and ferns. Physico-chemical measurements of two relatively pristine fumarolic microcosms point to their resemblance with the paleo-environment of earth during the Ordovician and Devonian periods. These geothermal habitats were analysed for the distribution of elemental mass fractions in the rhizospheric soil (RS), the native volcanic substrate (VS) and the sediments (S), using the new high-sensitivity technique of polarized x-ray energy dispersive fluorescence spectrometry (PEDXRF) as well as instrumental neutron activation analysis (INAA) for selected elements. This work presents the results for the naturally occurring heavy radioactive elements (NOHRE) Bi, Th and U but principally the latter two. For the RS, the density was found to be the least and the total organic matter content the most. Bi was found to be negligibly present in all substrate types. The average Th and U mass fractions in the RS were higher than in the VS and about equal to their average mass fractions in the S. The VS mass fraction of Th was higher, and of U lower, than the mass fractions in the earth's crust. In fact for the fumaroles of one site, the average RS mass fractions of these elements were higher than the averaged values for S (without considering the statistical dispersion). The immobilization of the NOHRE in the RS is brought about by the bio-geochemical processes specific to these extremophiles. Its effectiveness is such that despite the small masses of these plants, it compares with, or may sometimes exceed, the immobilization of the NOHRE in the S by the abiotic and aggressive chemical action of the hot-springs. These results indicate that the fumarolic plants are able to transform the volcanic substrate to soil and to affect the NOHRE mass fractions even though these elements are not plant nutrients. Mirrored back to the paleo times when such plant types were ubiquitous, it would mean that the first plants contributed significantly to pedogenesis and the biogeochemical recycling of even the heaviest and radioactive elements. Such plants may potentially be useful for the phytostabilisation of soil moderately contaminated by the NOHRE. Furthermore where applicable, geochronology may require taking into account the influence of the early plants on the NOHRE distributions.

W.A. Abuhani; N. Dasgupta-Schubert; L.M. Villaseñor; D. García Avila; L. Suárez; C. Johnston; S.E. Borjas; S.A. Alexander; S. Landsberger; M.C. Suárez

2015-01-01T23:59:59.000Z

99

Methods applied to investigate the major VCE that occured in the TOTAL refinery's Fluid Catalytic Cracking Unit at La Mede,  

E-Print Network [OSTI]

95-35 Methods applied to investigate the major �VCE that occured in the TOTAL refinery's Fluid.V.C.E, occured in the Gas Plant of the TOTAL refinery's Fluid Catalytic Cracking ünit at La Mede, France sources: control room hard copy and electronically stored records: no deviation of process operating

Paris-Sud XI, Université de

100

Solar Heating and Air Conditioning  

Science Journals Connector (OSTI)

...given of the status of solar fired air conditioning...to an approach to cool storage in solar air conditioning systems...an assessment of cool storage for reducing peak electrical...rolling cylinder thermal energy storage device for compact...

1980-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "worst-case conditions occurring" 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

Energy conditions and their implications  

E-Print Network [OSTI]

Energy conditions and their implications Matt Visser Physics Department Washington University Saint;#16;s (Los Alamos) Midwest Relativity 9 November 1999. #12; Abstract: The energy conditions of general- itational #12;elds and cosmological geometries. However, the energy conditions are beginning to look a lot

Visser, Matt

102

Ill-conditioned Shake-and-Bake: the trap of the false minimum  

Science Journals Connector (OSTI)

False minima occurred frequently during Shake-and-Bake applications to large P1 data sets. These minima can be recognized and avoided with proper choice of parameter-shift conditions.

Xu, H.

2000-03-01T23:59:59.000Z

103

Response of the NCAR Community Climate Model to the Radiative Forcing by the Naturally Occurring Tropospheric Aerosol  

Science Journals Connector (OSTI)

We insert the effect of naturally occurring tropospheric aerosols on solar radiation into the NCAR Community Climate Model (CCM). The effect of the aerosol depends on concentration and type (continental, maritime), surface albedo, solar zenith ...

James A. Coakley Jr.; Robert D. Cess

1985-08-01T23:59:59.000Z

104

Concentrations of Naturally Occuring Radionuclides and Fission Products in Brick Samples Fabricated and Used in and Around Greater Dhaka City  

Science Journals Connector (OSTI)

...Radiation Protection Dosimetry Article Concentrations of Naturally Occuring Radionuclides and Fission Products in Brick Samples...measures to minimise the harmful effects of ionising radiation. The radium equivalent activity concentrations......

S. Roy; M.S. Alam; F.K. Miah; B. Alam

2000-04-01T23:59:59.000Z

105

LFS Exhibit B Special Conditions  

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

B (Rev. 9, 12/13/12) Exhibit B Special Conditions B (Rev. 9, 12/13/12) Exhibit B Special Conditions Dated 5-20-13 Subcontract No. 241314 Page 1 of 11 EXHIBIT "B" SPECIAL CONDITIONS TABLE OF CONTENTS SC Title Page SC-2 AUTHORITY OF PERSONNEL (Apr 2012) ............................................................................... 2 SC-3A COMMENCEMENT, PROGRESS AND COMPLETION OF THE WORK (Jun 2009 - Deviation) ................................................................................................................................... 3 SC-10B INSURANCE REQUIREMENTS (Jan 2010) ............................................................................. 3 SC-11B INVOICING AND PAYMENT (Mar 2012) .................................................................................. 5

106

CPFFS Exhibit A General Conditions  

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

2, 6/14/13) Exhibit A General Conditions 2, 6/14/13) Exhibit A General Conditions Page 1 of 20 EXHIBIT "A" GENERAL CONDITIONS TABLE OF CONTENTS GC Title Page GC-1 DEFINITIONS (Aug 2012) .......................................................................................................... 3 GC-2A AUTHORIZED REPRESENTATIVES, COMMUNICATIONS AND NOTICES (Jan 2010) ........................................................................................................................................... 3 GC-3 INDEPENDENT CONTRACTOR (Jun 2009) ............................................................................. 4 GC-4 SUBCONTRACT INTERPRETATION (Jun 2009) ...................................................................... 4 GC-5 NOTICE TO PROCEED (Jul 2011)............................................................................................. 4

107

EFS Exhibit A General Conditions  

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

2, 6/14/13) Exhibit A General Conditions 2, 6/14/13) Exhibit A General Conditions Page 1 of 26 EXHIBIT "A" GENERAL CONDITIONS TABLE OF CONTENTS GC Title Page GC-1 DEFINITIONS (Aug 2012) .......................................................................................................... 3 GC-2 AUTHORIZED REPRESENTATIVES, COMMUNICATIONS AND NOTICES (Apr 2013) ........................................................................................................................................... 3 GC-3 INDEPENDENT CONTRACTOR (Jun 2009) ............................................................................. 4 GC-4 SUBCONTRACT INTERPRETATION (Jun 2009) ...................................................................... 4 GC-5 NOTICE TO PROCEED (Jul 2011)............................................................................................. 4

108

EFS Exhibit A General Conditions  

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

1, 4/9/13) Exhibit A General Conditions 1, 4/9/13) Exhibit A General Conditions Page 1 of 39 EXHIBIT "A" GENERAL CONDITIONS TABLE OF CONTENTS GC Title Page GC-1 DEFINITIONS (Aug 2012) .......................................................................................................... 3 GC-2 AUTHORIZED REPRESENTATIVES, COMMUNICATIONS AND NOTICES (Apr 2013) ........................................................................................................................................... 3 GC-3 INDEPENDENT CONTRACTOR (Jun 2009) ............................................................................. 4 GC-4 SUBCONTRACT INTERPRETATION (Jun 2009) ...................................................................... 4 GC-5 NOTICE TO PROCEED (Jul 2011)............................................................................................. 4

109

AES Exhibit A General Conditions  

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

2, 6/14/13) Exhibit A General Conditions 2, 6/14/13) Exhibit A General Conditions Page 1 of 18 EXHIBIT "A" GENERAL CONDITIONS TABLE OF CONTENTS GC Title Page GC-1 DEFINITIONS (Aug 2012) .......................................................................................................... 3 GC-2A AUTHORIZED REPRESENTATIVES, COMMUNICATIONS AND NOTICES (Jan 2010) ........................................................................................................................................... 3 GC-3 INDEPENDENT CONTRACTOR (Jun 2009) ............................................................................. 4 GC-4 SUBCONTRACT INTERPRETATION (Jun 2009) ...................................................................... 4 GC-5 NOTICE TO PROCEED (Jul 2011)............................................................................................. 4

110

SFS Exhibit A General Conditions  

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

2, 6/14/13) Exhibit A General Conditions 2, 6/14/13) Exhibit A General Conditions Page 1 of 16 EXHIBIT "A" GENERAL CONDITIONS TABLE OF CONTENTS GC Title Page GC-1 DEFINITIONS (Aug 2012) .......................................................................................................... 3 GC-2A AUTHORIZED REPRESENTATIVES, COMMUNICATIONS AND NOTICES (Jan 2010) ........................................................................................................................................... 3 GC-3 INDEPENDENT CONTRACTOR (Jun 2009) ............................................................................. 4 GC-4 SUBCONTRACT INTERPRETATION (Jun 2009) ...................................................................... 4 GC-5 NOTICE TO PROCEED (Jul 2011)............................................................................................. 4

111

SFS Exhibit A General Conditions  

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

1, 4/9/13) Exhibit A General Conditions 1, 4/9/13) Exhibit A General Conditions Page 1 of 29 EXHIBIT "A" GENERAL CONDITIONS TABLE OF CONTENTS GC Title Page GC-1 DEFINITIONS (Aug 2012) .......................................................................................................... 3 GC-2A AUTHORIZED REPRESENTATIVES, COMMUNICATIONS AND NOTICES (Jan 2010) ........................................................................................................................................... 3 GC-3 INDEPENDENT CONTRACTOR (Jun 2009) ............................................................................. 4 GC-4 SUBCONTRACT INTERPRETATION (Jun 2009) ...................................................................... 4 GC-5 NOTICE TO PROCEED (Jul 2011)............................................................................................. 4

112

Extremality conditions for generalized channels  

E-Print Network [OSTI]

A generalized channel is a completely positive map that preserves trace on a given subspace. We find conditions under which a generalized channel with respect to a positively generated subspace J is an extreme point in the set of all such generalized channels. As a special case, this yields extremality conditions for quantum protocols. In particular, we obtain new extremality conditions for quantum 1-testers with 2 outcomes, which correspond to yes/no measurements on the set of quantum channels.

Anna Jencova

2012-04-12T23:59:59.000Z

113

General conditions for quantum adiabatic evolution  

SciTech Connect (OSTI)

Adiabaticity occurs when, during its evolution, a physical system remains in the instantaneous eigenstate of the Hamiltonian. Unfortunately, existing results, such as the quantum adiabatic theorem based on a slow down evolution [H({epsilon}t),{epsilon}{yields}0], are insufficient to describe an evolution driven by the Hamiltonian H(t) itself. Here we derive general criteria and exact bounds, for the state and its phase, ensuring an adiabatic evolution for any Hamiltonian H(t). As a corollary, we demonstrate that the commonly used condition of a slow Hamiltonian variation rate, compared to the spectral gap, is indeed sufficient to ensure adiabaticity but only when the Hamiltonian is real and nonoscillating (for instance, containing exponential or polynomial but no sinusoidal functions)

Comparat, Daniel [Laboratoire Aime Cotton, CNRS, Universite Paris-Sud, Batiment 505, 91405 Orsay (France)

2009-07-15T23:59:59.000Z

114

Section 38 - HVAC (Heating, Ventilation, Air Conditioning)  

Science Journals Connector (OSTI)

The term HVAC is an acronym for Heating, Ventilation (and) Air Conditioning, the industry term for any of various efforts to control conditions in a building or other enclosed area to improve comfort and efficiency. A closely related section is Refrigeration, which follows this one. Some contemporary HVAC techniques have ancient roots. Early forms of central heating and solar home heating were in use in Rome in the first century A.D. The earliest use of glass in windows (as opposed to a covering of wood, cloth, or hide, or simply an opening) is also attributed to the Romans at this same time. The first known use of solar-oriented building design in North America dates back to about the year 1050; i.e., the cliff dwellings built by the Anasazi (Ancient Pueblo) people of the Colorado Plateau area. Geothermal district heating was employed as early as the 1300s, in the Auvergne region of southern France. The foundation for modern central heating was established in the 1700s, first in England and then in France. The 1800s saw significant advances in the use of water heaters, especially the first automatic storage water heater (Edwin Ruud, 1889) and the first commercial solar water heater (Clarence Kemp, 1891). In comparison with heating, cooling technology was late in developing. The first successful method of producing ice occurred in 1851, and it was not until 1902 that Willis Haviland Carrier designed the first industrial air-conditioning system. His Carrier Air Conditioning Corporation would go on to develop air-conditioning systems for stores and theaters (1924) and for residential buildings (1928). Carrier remains the global leader in air conditioner production. The first air-conditioned automobile was produced by Packard in 1939. Recent entries in this section emphasize the use of alternative energy sources in heating and cooling, such as solar, photovoltaic, geothermal, and fuel cells. These advances include the ground-source heat pump, the Trombe wall, the heat pipe, and the PV/thermal hybrid system.

Cutler J. Cleveland; Christopher Morris

2014-01-01T23:59:59.000Z

115

Subsidiary Conditions in Covariant Theories  

Science Journals Connector (OSTI)

We have investigated the effect that coordinate conditions and similar conditions will have on the formal properties of covariant theories. Two distinct types of coordinate conditions were included, those involving first derivatives of the field variables (such as the gauge condition of Lorentz and the coordinate conditions of De Donder) and those algebraic in the field variables (of which the Coulomb gauge is an example).We have found that with either type of coordinate condition we can construct a variational principle, or a Hamiltonian formalism, which leads to physically meaningful field equations if associated with appropriate initial conditions on a space-like hypersurface. Thus the existence of a properly set Cauchy problem is always assured.It had been found previously that the infinitesimal invariant transformations of covariant theories form a group and that the coordinate (and similar) transformations represent a normal subgroup. The members of the resulting factor group are in one-to-one correspondence with the true observables of the theory, those dynamical variables which alone possess intrinsic significance without reference to a particular frame of description and whose commutator algebra is presumably reflected in the commutators of the corresponding Hilbert operators of the quantized theory. In this paper we have established the appropriate transformation groups (and their subgroups and factor groups) of a theory with either type of coordinate conditions. We have found that in any of these versions the theory will yield the same observables with the same commutator algebra. One may therefore hope that a quantization scheme based on a theory with subsidiary conditions will be free of the arbitrariness involved in the choice of particular conditions.

Peter G. Bergmann and Allen I. Janis

1958-08-15T23:59:59.000Z

116

Fast Process Security Assessment Theory Korkut Uygun and Yinlun Huang  

E-Print Network [OSTI]

reactor examples are studied to demonstrate the methodology for security-threat analysis. © 2004 American conditions will be reached in worst-case scenarios). Computational efficiency and reliability are achieved Institute of Chemical Engineers AIChE J, 50: 2187­2202, 2004 Keywords: process security, -analysis, priority

Huang, Yinlun

117

Center for Turbulence Research Proceedings of the Summer Program 2008  

E-Print Network [OSTI]

-equilibrium excitation of vibrational degrees of freedom. High temperatures make it necessary to consider chemical to increased ablation and, as a worst-case-scenario, to the failure of the underlying TPS (thermal protection (i.e., mounts). The flow conditions are high Mach number and hot flow since this is not attainable

Prinz, Friedrich B.

118

Demand-Side Load Scheduling Incentivized by Dynamic Energy Hadi Goudarzi, Safar Hatami, and Massoud Pedram  

E-Print Network [OSTI]

Demand-Side Load Scheduling Incentivized by Dynamic Energy Prices Hadi Goudarzi, Safar Hatami growth in electrical energy consumption under worst- case demand conditions [1]. To avoid expending 90089 {hgoudarz, shatami, pedram}@usc.edu Abstract--Demand response is an important part of the smart

Pedram, Massoud

119

Importance of Design Conditions for Sizing Air-Conditioning Plant  

E-Print Network [OSTI]

Design conditions based on the meteorological data collected at two weather stations located less than 10 km away from each other within Kuwait City are presented for dry-bulb temperature (DBT) and web-bulb temperature (WBT) prioritization...

Shaban, N.; Maheshwari, G. P.; Suri, R. K.

2000-01-01T23:59:59.000Z

120

Fuzzy Systems for Condition Monitoring  

Science Journals Connector (OSTI)

The chapter presents the application of Fuzzy Set Theory (FST) and fuzzy ARTMAP (Adaptive Resonance Theory Mapping) to diagnose the condition of high voltage bushings. The diagnosis uses Dissolved Gas Analysis...

Tshilidzi Marwala

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "worst-case conditions occurring" 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

Natural Air-Conditioning Systems  

Science Journals Connector (OSTI)

Recent research in summer air conditioning utilizing natural sources of coolness* are discussed. These systems are classified according to the sources of coolness, the modes of heat transfer and airflow, and t...

Mehdi N. Bahadori

1986-01-01T23:59:59.000Z

122

Spectral conditions for positive maps  

E-Print Network [OSTI]

We provide a partial classification of positive linear maps in matrix algebras which is based on a family of spectral conditions. This construction generalizes celebrated Choi example of a map which is positive but not completely positive. It is shown how the spectral conditions enable one to construct linear maps on tensor products of matrix algebras which are positive but only on a convex subset of separable elements. Such maps provide basic tools to study quantum entanglement in multipartite systems.

Dariusz Chruscinski; Andrzej Kossakowski

2008-09-29T23:59:59.000Z

123

Lead in Your Drinking Water Lead (Pb) is an extremely toxic heavy metal that unfortunately occurs widely in  

E-Print Network [OSTI]

Lead in Your Drinking Water Lead (Pb) is an extremely toxic heavy metal that unfortunately occurs of metallic lead in the soil (4) Drinking water ­ water as it leaves the treatment plant has no lead;Common metals used for the supply pipe are lead, copper and galvanized iron. Also in the system

Maynard, J. Barry

124

(LNG) production. Volitional selection occurs, for instance, in verbal fluency and verb generation, tasks widely used as  

E-Print Network [OSTI]

#12;(LNG) production. Volitional selection occurs, for instance, in verbal fluency and verb attention focusing on incorpo- rating response selection into contemporary models of LNG and speech. One-general processes has important theoretical impli- cations for modelling of spoken LNG behaviour. Contempo- rary

125

The impact of co-occurring tree and grassland species on carbon sequestration and potential biofuel production  

E-Print Network [OSTI]

The impact of co-occurring tree and grassland species on carbon sequestration and potential biofuel for terrestrial carbon sequestration and potential biofuel production. For P. strobus, above- ground plant carbon harvest for biofuel would result in no net carbon sequestration as declines in soil carbon offset plant

Weiblen, George D

126

PUBLISHED ONLINE: 24 JANUARY 2010 | DOI: 10.1038/NPHYS1509 Naturally occurring resonators in random lasing of  

E-Print Network [OSTI]

ARTICLES PUBLISHED ONLINE: 24 JANUARY 2010 | DOI: 10.1038/NPHYS1509 Naturally occurring resonators to trap the SE radiation. This disorder type may be formed owing to refractive-index fluctuations, nr the SE radiation formed in the gain medium outside the excited area. In this case the optical gain needs

Loss, Daniel

127

Film #1 -The developing brain: Issues to think about 1. Prenatally, what (generally) occurs in the final 12 weeks?  

E-Print Network [OSTI]

Film #1 - The developing brain: Issues to think about 1. Prenatally, what (generally) occurs-Nurture issue: How much flexibility is there in brain development? How much plasticity is there? 5. What to the neural connections? #12;Film #2 - The Childs Brain: Issues to think about. 1. What is meant by the phrase

Sergio, Lauren E.

128

Shoal and prey patch choice by co-occurring fishes and prawns: inter-taxa use of socially transmitted cues  

Science Journals Connector (OSTI)

...2008 research-article Shoal and prey patch choice by co-occurring fishes and prawns...themselves, and even selecting foraging patches located close to them. Prawns were seen...cues should indirectly influence prey patch choice. Specifically, we predicted that...

2008-01-01T23:59:59.000Z

129

Water in a Crowd In many situations, form biology to geology, water occurs not as the pure bulk  

E-Print Network [OSTI]

Water in a Crowd In many situations, form biology to geology, water occurs not as the pure bulk species, and interacting with large organic molecules. In such situations, water does not behave in the same manner as it does in the pure bulk liquid. Water dynamics are fundamental to many processes

Fayer, Michael D.

131

Physicochemical Processes Occurring in Long-Term Storage of Liquid Radioactive Waste in Deep Underground Collector Beds  

Science Journals Connector (OSTI)

Interaction under hydrothermal conditions (pressure 3 MPa; temperature 80-170°C; contact time up to 2500 h) of intermediate-level acidic waste with bed rock of the underground repository for liquid radioactive...

E. V. Zakharova; E. P. Kaimin; E. N. Darskaya; K. A. Menyailo…

2001-07-01T23:59:59.000Z

132

Range Condition: Key to Sustained Ranch Productivity  

E-Print Network [OSTI]

Range condition, or a rangeland's "state of health," is an ecological measurement of the current condition of a range. Range condition is evaluated by the plant species composition. This leaflet explains the importance of range condition, how range...

McGinty, Allan; White, Larry D.

2000-04-25T23:59:59.000Z

133

Air Conditioning | Department of Energy  

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

Conditioning Conditioning Air Conditioning July 1, 2012 - 6:28pm Addthis Air conditioners cost U.S. homeowners more than $11 billion each year, and regular maintenance can keep your air conditioner running efficiently. | Photo courtesy of ©iStockphoto/JaniceRichard Air conditioners cost U.S. homeowners more than $11 billion each year, and regular maintenance can keep your air conditioner running efficiently. | Photo courtesy of ©iStockphoto/JaniceRichard How does it work? An air conditioner uses energy -- usually electricity -- to transfer heat from the interior of your home to the relatively warm outside environment. Two-thirds of all homes in the United States have air conditioners. Air conditioners use about 5% of all the electricity produced in the United States, at an annual cost of more than $11 billion to homeowners. As a

134

Conditions for successful data assimilation  

E-Print Network [OSTI]

We show, using idealized models, that numerical data assimilation can be successful only if an effective dimension of the problem is not excessive. This effective dimension depends on the noise in the model and the data, and in physically reasonable problems it can be moderate even when the number of variables is huge. We then analyze several data assimilation algorithms, including particle filters and variational methods. We show that well-designed particle filters can solve most of those data assimilation problems that can be solved in principle, and compare the conditions under which variational methods can succeed to the conditions required of particle filters. We also discuss the limitations of our analysis.

Alexandre J. Chorin; Matthias Morzfeld

2014-10-22T23:59:59.000Z

135

Extreme Conditions Modeling Workshop Report  

SciTech Connect (OSTI)

Sandia National Laboratories (SNL) and the National Renewable Energy Laboratory (NREL) hosted the Wave Energy Converter (WEC) Extreme Conditions Modeling (ECM) Workshop in Albuquerque, NM on May 13th-14th, 2014. The objective of the workshop was to review the current state of knowledge on how to model WECs in extreme conditions (e.g. hurricanes and other large storms) and to suggest how U.S. Department of Energy (DOE) and national laboratory resources could be used to improve ECM methods for the benefit of the wave energy industry.

Coe, R. G.; Neary, V. S.; Lawson, M. J.; Yu, Y.; Weber, J.

2014-07-01T23:59:59.000Z

136

Material dynamics under extreme conditions of pressure and strain rate  

SciTech Connect (OSTI)

Solid state experiments at extreme pressures (10-100 GPa) and strain rates ({approx}10{sup 6}-10{sup 8}s{sup -1}) are being developed on high-energy laser facilities, and offer the possibility for exploring new regimes of materials science. These extreme solid-state conditions can be accessed with either shock loading or with a quasi-isentropic ramped pressure drive. Velocity interferometer measurements establish the high pressure conditions. Constitutive models for solid-state strength under these conditions are tested by comparing 2D continuum simulations with experiments measuring perturbation growth due to the Rayleigh-Taylor instability in solid-state samples. Lattice compression, phase, and temperature are deduced from extended x-ray absorption fine structure (EXAFS) measurements, from which the shock-induced {alpha}-{omega} phase transition in Ti and the {alpha}-{var_epsilon} phase transition in Fe are inferred to occur on sub-nanosec time scales. Time resolved lattice response and phase can also be measured with dynamic x-ray diffraction measurements, where the elastic-plastic (1D-3D) lattice relaxation in shocked Cu is shown to occur promptly (< 1 ns). Subsequent large-scale molecular dynamics (MD) simulations elucidate the microscopic dynamics that underlie the 3D lattice relaxation. Deformation mechanisms are identified by examining the residual microstructure in recovered samples. The slip-twinning threshold in single-crystal Cu shocked along the [001] direction is shown to occur at shock strengths of {approx}20 GPa, whereas the corresponding transition for Cu shocked along the [134] direction occurs at higher shock strengths. This slip-twinning threshold also depends on the stacking fault energy (SFE), being lower for low SFE materials. Designs have been developed for achieving much higher pressures, P > 1000 GPa, in the solid state on the National Ignition Facility (NIF) laser.

Remington, B A; Allen, P; Bringa, E; Hawreliak, J; Ho, D; Lorenz, K T; Lorenzana, H; Meyers, M A; Pollaine, S W; Rosolankova, K; Sadik, B; Schneider, M S; Swift, D; Wark, J; Yaakobi, B

2005-09-06T23:59:59.000Z

137

On specification of initial conditions in turbulence models  

SciTech Connect (OSTI)

Recent research has shown that initial conditions have a significant influence on the evolution of a flow towards turbulence. This important finding offers a unique opportunity for turbulence control, but also raises the question of how to properly specify initial conditions in turbulence models. We study this problem in the context of the Rayleigh-Taylor instability. The Rayleigh-Taylor instability is an interfacial fluid instability that leads to turbulence and turbulent mixing. It occurs when a light fluid is accelerated in to a heavy fluid because of misalignment between density and pressure gradients. The Rayleigh-Taylor instability plays a key role in a wide variety of natural and man-made flows ranging from supernovae to the implosion phase of Inertial Confinement Fusion (ICF). Our approach consists of providing the turbulence models with a predicted profile of its key variables at the appropriate time in accordance to the initial conditions of the problem.

Rollin, Bertrand [Los Alamos National Laboratory; Andrews, Malcolm J [Los Alamos National Laboratory

2010-12-01T23:59:59.000Z

138

LFS Exhibit A General Conditions  

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

Page 1 of 31 Page 1 of 31 EXHIBIT "A" GENERAL CONDITIONS TABLE OF CONTENTS GC Title Page GC-1 DEFINITIONS (Aug 2012) .......................................................................................................... 3 GC-2A AUTHORIZED REPRESENTATIVES, COMMUNICATIONS AND NOTICES (Jan 2010) ........................................................................................................................................... 3 GC-3 INDEPENDENT CONTRACTOR (Jun 2009) ............................................................................. 4 GC-4 SUBCONTRACT INTERPRETATION (Jun 2009) ...................................................................... 4 GC-5 NOTICE TO PROCEED (Jul 2011)............................................................................................. 4

139

Solitons induced by boundary conditions  

SciTech Connect (OSTI)

Although soliton phenomena have attracted wide attention since 1965, there are still not enough efforts paid to mixed-boundary - initial-value problems that are important in real physical cases. The main purpose of this thesis is to study carefully the various boundary-induced soliton under different initial conditions. The author states with three sets of nonlinear equations: KdV equations and Boussinesq equations (for water); two-fluid equations for cold-ion plasma. He was interested in four types of problems involved with water solitons: excitation by different time-dependent boundary conditions under different initial conditions; head-on and over-taking collisions; reflection at a wall and the excitation by pure initial conditions. For KdV equations, only cases one and four are conducted. The results from two fully nonlinear KdV and Boussinesq equations are compared, and agree extremely well. The Boussinesq equations permit solition head-on collisions and reflections, studied the first time. The results from take-over collision agree with KdV results. For the ion-acoustic plasma, a set of Boussinesq-type equations was derived from the standard two-fluid equations for the ion-acoustic plasma. It theoretically proves the essential nature of the solitary wave solutions of the cold-ion plasma. The ion acoustic solitons are also obtained by prescribing a potential phi/sub 0/ at one grid point.

Zhou, R.L.

1987-01-01T23:59:59.000Z

140

July 30, 2004 Crop Conditions  

E-Print Network [OSTI]

, Grapes, and Wine Tissue Analysis Grapes and Small Fruits Upcoming Meetings Crop Conditions: Apple harvest harvest management, increased fruit size, maintenance of fruit firmness, reduction of preharvest fruit drop, improved fruit quality, and enhanced storage potential. Rates of application are similar

Ginzel, Matthew

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


141

Application of the Newton-Raphson method to systems of separation columns in which one or more reactions occur  

E-Print Network [OSTI]

capable of modeling a separation column in which a reaction occurs which was based on the work done by Tierney and Bruno (1967) and Tierney and Yanosik (1969). Tierney and Bruno had developed a Newton- Raphson procedure for modeling separation columns.... Tierney and Bruno and Tierney and Yanosik also developed matrix methods used by Nelson (1971) for calcu- lating the values of the Jacobian in the Newton-Raphson routine. It was shown that the ef'feet of any change in an independent variable on one...

Mommessin, Paul Edward

2012-06-07T23:59:59.000Z

142

LFS Exhibit A General Conditions  

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

Dated 5-20-13 Dated 5-20-13 Subcontract No. 241314 Page 1 of 19 EXHIBIT "A" GENERAL CONDITIONS TABLE OF CONTENTS GC Title Page GC-1 DEFINITIONS (Aug 2012 - Deviation) ........................................................................................ 3 GC-2A AUTHORIZED REPRESENTATIVES, COMMUNICATIONS AND NOTICES (Jan 2010) ........................................................................................................................................... 4 GC-3 INDEPENDENT CONTRACTOR (Jun 2009) ............................................................................. 4 GC-4 SUBCONTRACT INTERPRETATION (Jun 2009) ...................................................................... 4 GC-5 NOTICE TO PROCEED (Jul 2011)............................................................................................. 4

143

Analytical methods under emergency conditions  

SciTech Connect (OSTI)

This lecture discusses methods for the radiochemical determination of internal contamination of the body under emergency conditions, here defined as a situation in which results on internal radioactive contamination are needed quickly. The purpose of speed is to determine the necessity for medical treatment to increase the natural elimination rate. Analytical methods discussed include whole-body counting, organ counting, wound monitoring, and excreta analysis. 12 references. (ACR)

Sedlet, J.

1983-01-01T23:59:59.000Z

144

A Primer on Energy Conditions  

E-Print Network [OSTI]

An energy condition, in the context of a wide class of spacetime theories (including general relativity), is, crudely speaking, a relation one demands the stress-energy tensor of matter satisfy in order to try to capture the idea that "energy should be positive". The remarkable fact I will discuss in this paper is that such simple, general, almost trivial seeming propositions have profound and far-reaching import for our understanding of the structure of relativistic spacetimes. It is therefore especially surprising when one also learns that we have no clear understanding of the nature of these conditions, what theoretical status they have with respect to fundamental physics, what epistemic status they may have, when we should and should not expect them to be satisfied, and even in many cases how they and their consequences should be interpreted physically. Or so I shall argue, by a detailed analysis of the technical and conceptual character of all the standard conditions used in physics today, including exam...

Curiel, Erik

2014-01-01T23:59:59.000Z

145

Synoptic-Scale Environments of Predecessor Rain Events Occurring East of the Rocky Mountains in Association with Atlantic Basin Tropical Cyclones  

Science Journals Connector (OSTI)

The synoptic-scale environments of predecessor rain events (PREs) occurring to the east of the Rocky Mountains in association with Atlantic basin tropical cyclones (TCs) are examined. PREs that occurred during 1988–2010 are subjectively classified ...

Benjamin J. Moore; Lance F. Bosart; Daniel Keyser; Michael L. Jurewicz

2013-03-01T23:59:59.000Z

146

Naturally Occurring Radionuclides of Ash Produced by Coal Combustion. The Case of the Kardia Mine in Northern Greece  

SciTech Connect (OSTI)

West Macedonia Lignite Center (WMLC), located in Northwest Greece, releases into the atmosphere about 21,400 tons/year of fly ash through the stacks of four coal fired plants. The lignite ash contains naturally occurring radionuclides, which are deposited on the WMLC basin. This work investigates the natural radioactivity of twenty six ash samples, laboratory produced from combustion of lignite, which was sampled perpendicularly to the benches of the Kardia mine. The concentrations of radionuclides {sup 40}K, {sup 235}U, {sup 238}U, {sup 226}Ra, {sup 228}Ra and {sup 232}Th, were measured spectroscopically and found round one order of magnitude as high as those of lignite. Subsequently the Radionuclide Partitioning Coefficients of radionuclides were calculated and it was found that they are higher for {sup 232}Th, {sup 228}Ra and {sup 40}K, because the latter have closer affinity with the inorganic matrix of lignite. During combustion up to one third of the naturally occurring radioisotopes escape from the solid phase into the flue gases. With comparison to relative global data, the investigated ash has been found to have relatively high radioactivity, but the emissions of the WMLC radionuclides contribute only 0.03% to the mean annual absorbed dose.

Fotakis, M.; Tsikritzis, L.; Tzimkas, N.; Kolovos, N.; Tsikritzi, R. [Technological Educational Institute (TEI) of West Macedonia, Department of Pollution Control Technologies, Koila, Kozani, 50100 (Greece)

2008-08-07T23:59:59.000Z

147

Results of the European Commission Marina II Study Part II—effects of discharges of naturally occurring radioactive material  

Science Journals Connector (OSTI)

Enhanced levels of naturally occurring radioactive materials (NORM) are produced through various industrial operations and may lead to discharges to the marine environment. A recent study, called MARINA II, carried out for the European Commission considered discharges of radionuclides from the NORM industries to north European marine waters and their consequences. There are two main sources that were considered in the study. The use of phosphogypsum during the production of phosphoric acid by the fertiliser industry and the pumping of oil and gas from the continental shelf in the North Sea which produces large quantities of water contaminated with enhanced levels of naturally occurring radionuclides. Discharges of alpha emitting radionuclides from these two industries have contributed significantly to the total input of alpha emitters to north European waters over the period 1981–2000 (data were not available prior to 1981). Discharges due to the use of phosphogypsum have declined since the early 1990s and are now very low. Discharges from the oil and gas industries stabilised in the second half of the 1990s and are now the major contributor to alpha discharges to the region. As most European countries do not report discharges of radioactivity with the water produced during extraction, there is considerable uncertainty in the discharges used in the study. The impact of the discharges has been estimated both in terms of the effect on non-human biota and the radiological impact for people. In the 1980s the radiation dose rates to marine biota in the region around a phosphate plant on the north-west coast of England were as high due to the discharges from the phosphate plant as those near to the Sellafield reprocessing plant due to its discharges. In recent years the additional dose to marine biota in this region due to the past NORM discharges is of the same order of magnitude as the natural background. The collective dose rate was estimated to determine the radiological impact on people. The peak collective dose rate from the NORM industries occurred in 1984 and was just over 600 manSv y?1. The collective dose rate fell with time as discharges from the phosphate industry reduced and was estimated as under 200 manSv y?1 in 2000.

M. Betti; L. Aldave de las Heras; A. Janssens; E. Henrich; G. Hunter; M. Gerchikov; M. Dutton; A.W. van Weers; S. Nielsen; J. Simmonds; A. Bexon; T. Sazykina

2004-01-01T23:59:59.000Z

148

Using Synchrotron Radiation and Electron Microscopy to Map the Huge Structural Changes that Occur in Viruses During Their Life Cycle  

SciTech Connect (OSTI)

The crystallographic techniques for structure determination of proteins and neucleic acids at near atomic resolution using synchrotron X-radiation has become almost automatic. However the limits of this procedure are determined by the availability of crystals. As the size and complexity of the molecular assemblies being studied increases, the likelihood of growing useful crystals diminishes. Cryo electron microscopy and tomography have extended the range of biological objects that can be determined at near atomic resolution. Furthermore it is now becoming apparent that the function of the molecular assemblies most often requires very large conformational changes that could never be contained within a crystal, Examples will be presented of the structural changes that occur in viruses as they assembly and prepare to infect new cells.

Rossman, Michael (Purdue University) [Purdue University

2011-09-07T23:59:59.000Z

149

Comment on 'Existence of long-lived isomeric states in naturally-occurring neutron-deficient Th isotopes'  

SciTech Connect (OSTI)

In their article ''Existence of Long-Lived Isomeric States in Naturally-Occuring Neutron-Deficient Th Isotopes''[Phys. Rev. C 76, 021303 (2007)], Marinov et al. fail to demonstrate that basic mass spectrometric protocols, such as abundance sensitivity, linearity, and freedom from possible interferences, have been met. In particular, the claim that four isomeric states of Th have been discovered, using an inductively coupled plasma-sector field mass spectrometer (ICP-SFMS), with abundances from (1-10)x10{sup -11} relative to {sup 232}Th, cannot be accepted, given the known abundance sensitivities of other sector field mass spectrometers. Accelerator mass spectrometry is the only mass spectrometric methodology capable of measuring relative abundances of the magnitude claimed by Marinov et al.

Barber, R. C.; De Laeter, J. R. [Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba R3T 2N2 (Canada); Department of Applied Physics, Curtin University, Perth, Western Australia (Australia)

2009-04-15T23:59:59.000Z

150

Conditions for petroleum generation in the Persian Gulf  

SciTech Connect (OSTI)

The unique volumes of petroleum in a single sedimentary basin indicate that hydrocarbon generation occurred on an extraordinary scale and reflects the formation and rapid development of giant petroleum foci. The genetic basis for these is investigated in this study by evaluating the scales of hydrocarbon generation. The treatment also elucidates some major related theoretical topics, such as the numerical relationships in the generation of dispersed hydrocarbons and the accumulation of reserves throughout the succession and in individual stratigraphic elements, as well as the quantitative evaluation of how geodynamic conditions affect the basin formation. 24 references.

Geodekyan, A.A.; Trotsyuk, V.Ya.; Serdobov, M.M.

1987-08-01T23:59:59.000Z

151

Conditions on Electric Power Generation  

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

An Analysis of the Effects of Drought An Analysis of the Effects of Drought Conditions on Electric Power Generation in the Western United States April 2009 DOE/NETL-2009/1365 DISCLAIMER 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, 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 therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement,

152

Conditions for Successful Extended Inflation  

E-Print Network [OSTI]

We investigate, in a model-independent way, the conditions required to obtain a satisfactory model of extended inflation in which inflation is brought to an end by a first-order phase transition. The constraints are that the correct present strength of the gravitational coupling is obtained, that the present theory of gravity is satisfactorily close to general relativity, that the perturbation spectra from inflation are compatible with large scale structure observations and that the bubble spectrum produced at the phase transition doesn't conflict with the observed level of microwave background anisotropies. We demonstrate that these constraints can be summarized in terms of the behaviour in the conformally related Einstein frame, and can be compactly illustrated graphically. We confirm the failure of existing models including the original extended inflation model, and construct models, albeit rather contrived ones, which satisfy all existing constraints.

Anne M Green; Andrew R Liddle

1996-06-10T23:59:59.000Z

153

CONMOW: Condition Monitoring for Offshore Wind Farms  

E-Print Network [OSTI]

practice the European project CONMOW (Condition Monitoring for Offshore Wind Farms) was started in November

Edwin Wiggelinkhuizen; Theo Verbruggen; Henk Braam; Luc Rademakers; Miguel Catalin Tipluica; Andrew Maclean; Axel Juhl Christensen; Edwin Becker; Pr?ftechnik Cm Gmbh (d; Dirk Scheffler; Nordex Energy Gmbh (d

154

Journal of Power Sources 162 (2006) 388399 Model-based condition monitoring of PEM fuel cell using  

E-Print Network [OSTI]

Journal of Power Sources 162 (2006) 388­399 Model-based condition monitoring of PEM fuel cell using of polymer electrolyte membrane (PEM) fuel cell systems, temporary faults in such systems still might occur/uncertainty of the fuel cell system, and the measurement noise. In this research, we propose a model-based condition

Ding, Yu

155

Thermoluminescence (TL) Analysis and Fading Studies of Naturally Occurring Salt Irradiated by 500 mGy Gamma Rays  

SciTech Connect (OSTI)

The aim of the present study was to investigate the potential of the naturally occurring salt for the dosimetry purposes, using TL. The fine powder samples (20 mg) were irradiated by {gamma}- rays from 500 mGy to 2500 mGy by using Theratron-780C Cobalt-60 source, however, this paper discusses about 500 mGy only. The TL glow curve peak parameters were studied by using Chen's peak shape equation. TL glow curves were compared with fitted curves using glow curve deconvolution (GCD) method by using Kitis expression. The kinetic parameter values (E, b and s) so calculated, are in good agreement with those available in literature. The calculated energy values were also verified by using various heating rate (VHR) method. {chi}{sup 2} test and figure of merit (FOM) calculation was done to accept the goodness of fit between the curves. Fading studies of the sample showed a good fitting between the curves. The analysis suggests that natural salt should be considered for dosimetry purposes.

Tiwari, Ramesh Chandra; Pau, Kham Suan [Department of Physics, Mizoram University: Tanhril Campus, Aizawl-796004, Mizoram (India)

2011-10-20T23:59:59.000Z

156

Megatides in the Arctic Ocean under glacial conditions Stephen D. Griffiths,1  

E-Print Network [OSTI]

Megatides in the Arctic Ocean under glacial conditions Stephen D. Griffiths,1 and W. R. Peltier1's climate and ocean circulation. Citation: Griffiths, S. D., and W. R. Peltier (2008), Megatides occurred approx- imately 26,000 years ago, since the bathymetric changes are now well constrained [Peltier

Peltier, W. Richard

157

EXPERIENCES WITH SONIC WIND SENSORS IN OPERATIONAL CONDITIONS Wiel M.F. Wauben  

E-Print Network [OSTI]

% occur when the wind is parallel to a transducer pair with an inclination angle of about 10° (Wauben1 EXPERIENCES WITH SONIC WIND SENSORS IN OPERATIONAL CONDITIONS Wiel M.F. Wauben R&D Information investigations indicate that sonic wind sensors can be considered for operational use. In 2008 KNMI selected a 2D

Wauben, Wiel

158

Conditional Similarity Solutions of the Boussinesq Equation  

Science Journals Connector (OSTI)

The direct method proposed by Clarkson and Kruskal is modified to obtain some conditional similarity solutions of a nonlinear physics model. Taking the -dimensional Boussinesq equation as a simple example, six types of conditional similarity reductions are obtained.

Tang Xiao-Yan; Lin Ji; Lou Sen-Yue

2001-01-01T23:59:59.000Z

159

A New Approach to Industrial Air Conditioning  

E-Print Network [OSTI]

-dryer Systems Division, has marketed industrial drying machinery. These heat reactivated dryers can handle latent loads in industrial air conditioning systems. Through waste heat conservation, air conditioning costs can be reduced 25 to 50%, with applications...

Gravenstreter, T.

1982-01-01T23:59:59.000Z

160

LANDAU'S NECESSARY DENSITY CONDITIONS FOR LCA GROUPS  

E-Print Network [OSTI]

LANDAU'S NECESSARY DENSITY CONDITIONS FOR LCA GROUPS KARLHEINZ GR�OCHENIG, GITTA KUTYNIOK's conditions to the setting of locally compact abelian (LCA) groups, relying in an analogous way on the basics

Seip, Kristian

Note: This page contains sample records for the topic "worst-case conditions occurring" 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

LANDAU'S NECESSARY DENSITY CONDITIONS FOR LCA GROUPS  

E-Print Network [OSTI]

LANDAU'S NECESSARY DENSITY CONDITIONS FOR LCA GROUPS KARLHEINZ GR¨OCHENIG, GITTA KUTYNIOK's conditions to the setting of locally compact abelian (LCA) groups, relying in an analogous way on the basics

Kutyniok, Gitta

162

Credit Conditions and Stock Return Predictability  

E-Print Network [OSTI]

This dissertation examines stock return predictability with aggregate credit conditions. The aggregate credit conditions are empirically measured by credit standards (Standards) derived from the Federal Reserve Board's Senior Loan Officer Opinion...

Park, Heungju

2012-10-19T23:59:59.000Z

163

Space Conditioning Standing Technical Committee Strategic Plan  

Broader source: Energy.gov [DOE]

This strategic plan document outlines the gaps, barriers, and opportunities identified by the Building America Space Conditioning Standing Technical Committee.

164

Building America Webinar: High Performance Space Conditioning...  

Energy Savers [EERE]

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

165

MAXIMAL CONDITIONAL EFFICIENCY SUCCESSIVE INTERFERENCE CANCELLATION  

E-Print Network [OSTI]

MAXIMAL CONDITIONAL EFFICIENCY SUCCESSIVE INTERFERENCE CANCELLATION Ananya Sen Gupta, Andrew C that maximizes the asymp- totic conditional efficiency at each stage of successive de- tection is also derived Urbana, IL 61801, USA ABSTRACT Conditional asymptotic multi-user efficiency is introduced

Singer, Andrew C

166

Meteorology: typical meteorological year data for selected stations in  

Open Energy Info (EERE)

Brazil from NREL Brazil from NREL Dataset Summary Description (Abstract): Each TMY is a data set of hourly values of solar radiation and meteorological elements for a 1-year period. Solar radiation is modeled using the NREL METSTAT model, with surface observed cloud cover being the principal model input. The container file contains one TMY file for each selected station in the region, plus documentation files and a TMY data reader file for use with Microsoft Excel. (Purpose): Simulations (Supplemental Information): A TMY consists of months selected from individual years and concatenated to form a complete year. The intended use is for computer simulations of solar energy conversion systems and building systems. Because of the selection criteria, these TMYs are not appropriate for simulations of wind energy conversion systems. A TMY provides a standard for hourly data for solar radiation and other meteorological elements that permit performance comparisons of system types and configurations for one or more locations. A TMY is not necessarily a good indicator of conditions over the next year, or even the next 5 years. Rather, it represents conditions judged to be typical over a long period of time, such as 30 years. Because they represent typical rather than extreme conditions, they are not suited for designing systems and their components to meet the worst-case conditions occurring at a location.

167

Meteorology: typical meteorological year data for selected stations in  

Open Energy Info (EERE)

Nepal from NREL Nepal from NREL Dataset Summary Description (Abstract): Each TMY is a data set of hourly values of solar radiation and meteorological elements for a 1-year period. Solar radiation is modeled using the NREL METSTAT model, with surface observed cloud cover being the principal model input. The container file contains one TMY file for each selected station in the region, plus documentation files and a TMY data reader file for use with Microsoft Excel. (Purpose): Simulations (Supplemental Information): A TMY consists of months selected from individual years and concatenated to form a complete year. The intended use is for computer simulations of solar energy conversion systems and building systems. Because of the selection criteria, these TMYs are not appropriate for simulations of wind energy conversion systems. A TMY provides a standard for hourly data for solar radiation and other meteorological elements that permit performance comparisons of system types and configurations for one or more locations. A TMY is not necessarily a good indicator of conditions over the next year, or even the next 5 years. Rather, it represents conditions judged to be typical over a long period of time, such as 30 years. Because they represent typical rather than extreme conditions, they are not suited for designing systems and their components to meet the worst-case conditions occurring at a location.

168

Meteorology: typical meteorological data for selected stations in Ghana  

Open Energy Info (EERE)

data for selected stations in Ghana data for selected stations in Ghana from NREL Dataset Summary Description (Abstract): Each TMY is a data set of hourly values of solar radiation and meteorological elements for a 1-year period. Solar radiation is modeled using the NREL METSTAT model, with surface observed cloud cover being the principal model input. The container file contains one TMY file for each selected station in the region, plus documentation files and a TMY data reader file for use with Microsoft Excel. (Purpose): Simulations> (Supplemental Information): A TMY consists of months selected from individual years and concatenated to form a complete year. The intended use is for computer simulations of solar energy conversion systems and building systems. Because of the selection criteria, these TMYs are not appropriate for simulations of wind energy conversion systems. A TMY provides a standard for hourly data for solar radiation and other meteorological elements that permit performance comparisons of system types and configurations for one or more locations. A TMY is not necessarily a good indicator of conditions over the next year, or even the next 5 years. Rather, it represents conditions judged to be typical over a long period of time, such as 30 years. Because they represent typical rather than extreme conditions, they are not suited for designing systems and their components to meet the worst-case conditions occurring at a location.

169

Meteorology: typical meteorological year data for selected stations in Sri  

Open Energy Info (EERE)

Sri Sri Lanka from NREL Dataset Summary Description (Abstract): A data set of hourly values of solar radiation and meteorological elements for a 1-year period. (Purpose): Simulations (Supplemental Information): A TMY consists of months selected from individual years and concatenated to form a complete year. The intended use is for computer simulations of solar energy conversion systems and building systems. Because of the selection criteria, these TMYs are not appropriate for simulations of wind energy conversion systems. A TMY provides a standard for hourly data for solar radiation and other meteorological elements that permit performance comparisons of system types and configurations for one or more locations. A TMY is not necessarily a good indicator of conditions over the next year, or even the next 5 years. Rather, it represents conditions judged to be typical over a long period of time, such as 30 years. Because they represent typical rather than extreme conditions, they are not suited for designing systems and their components to meet the worst-case conditions occurring at a location.

170

Meteorology: typical meteorological year data for selected stations in  

Open Energy Info (EERE)

Kenya from NREL Kenya from NREL Dataset Summary Description (Abstract): Each TMY is a data set of hourly values of solar radiation and meteorological elements for a 1-year period. Solar radiation is modeled using the NREL METSTAT model, with surface observed cloud cover being the principal model input. The container file contains one TMY file for each selected station in the region, plus documentation files and a TMY data reader file for use with Microsoft Excel. (Purpose): Simulations (Supplemental Information): A TMY consists of months selected from individual years and concatenated to form a complete year. The intended use is for computer simulations of solar energy conversion systems and building systems. Because of the selection criteria, these TMYs are not appropriate for simulations of wind energy conversion systems. A TMY provides a standard for hourly data for solar radiation and other meteorological elements that permit performance comparisons of system types and configurations for one or more locations. A TMY is not necessarily a good indicator of conditions over the next year, or even the next 5 years. Rather, it represents conditions judged to be typical over a long period of time, such as 30 years. Because they represent typical rather than extreme conditions, they are not suited for designing systems and their components to meet the worst-case conditions occurring at a location.

171

Performance of weather-conditional rebates under different risk preferences  

Science Journals Connector (OSTI)

Retailers who sell seasonal products often face challenges in demand management due to weather uncertainty. In many cases, they make their ordering and pricing decisions prior to the regular selling season but the vast majority of sales do not occur until after the season starts, during which unfavorable weather conditions may result in high monetary losses. To protect against such adverse financial outcomes, retailers may offer weather-linked promotions such as weather rebates and induce customers to make early purchases. Specifically, weather-conditional rebates are incentives offered in an advance promotional period to be paid to the early buyers if the weather state in the regular season is unfavorable. In the presence of seasonal weather uncertainty, risk attitudes of retailers and buyers may play an important role on the effectiveness of these promotions. In this paper, we analyze the performance of weather-conditional rebates by explicitly considering the impact of different risk behaviors. First, we study the case in which the retailer and customers are risk-neutral and show that the weather-conditional rebates are effective in increasing the retailer's profits. Under the assumption of the retailer's risk-neutrality, we conduct a simulation study to investigate the impact of customers' alternative early-purchase behaviors on the performance of the rebate program. Next, we consider a risk-averse retailer. We model the retailer's risk aversion primarily in the mean–variance framework and find that the rebate program can be designed to increase the mean profit and reduce the profit variance simultaneously. Furthermore, by combining the rebate program with a financial instrument such as binary weather options, the retailer can obtain greater benefits from weather-conditional rebates.

Ozgun Caliskan Demirag

2013-01-01T23:59:59.000Z

172

IN-SITU SAMPLING AND CHARACTERIZATION OF NATURALLY OCCURRING MARINE METHANE HYDRATE USING THE D/V JOIDES RESOLUTION  

SciTech Connect (OSTI)

The primary accomplishment of the JOI Cooperative Agreement with DOE/NETL in this quarter was the preparation of tools and measurement systems for deployment, testing and use on ODP Leg 204, which will study hydrate deposits on Hydrate Ridge, offshore Oregon. Additional accomplishments were related to the postcruise evaluation of tools and measurements systems used on ODP Leg 201 along the Peru margin from January through March, 2002. The operational results from the use of the Pressure Core Sampler (PCS) tool and the PCS Gas Manifold on ODP Leg 201 are evaluated in this progress report in order to prepare for the upcoming deployments on ODP Leg 204 in July, 2002. The PCS was deployed 17 times during ODP Leg 201 and successfully retrieved cores from a broad range of lithologies and sediment depths along the Peru margin. Eleven deployments were entirely successful, collecting between 0.5 and 1.0 meters of sediment at greater than 75% of hydrostatic pressure. The PCS gas manifold was used in conjunction with the Pressure Core Sampler (PCS) throughout ODP Leg 201 to measure the total volume and composition of gases recovered in sediment cores associated with methane gas hydrates. The FUGRO Pressure Corer (FPC), one of the HYACE/HYACINTH pressure coring tools, was also deployed on the D/V JOIDES Resolution during ODP Legs 201 to field-test this coring system at three shallow-water sites located offshore Peru. The field-testing of these tools provides a corollary benefit to DOE/NETL at no cost to this project. The testing of these tools on the D/V JOIDES Resolution was negotiated as part of a cooperative agreement between JOI/ODP and the HYACINTH partners. The DVTP, DVTP-P, APC-methane, and APC-Temperature tools (ODP memory tools) were used extensively during ODP Leg 201. The data obtained from the successful deployments of these tools is still being evaluated by the scientists and engineers involved in this testing; however, preliminary results are presented in this report. An infrared-thermal imaging system (IR-TIS) was deployed for the first time on ODP Leg 201. This system was used to identify methane hydrate intervals in the recovered cores. Initial discussions of these experiments are provided in this report. This report is an overview of the field measurements made on recovered sediment cores and the downhole measurements made during ODP Leg 201. These results are currently being used to incorporate the ''lessons learned'' from these deployments to prepare for a dedicated ODP leg to study the characteristics of naturally-occurring hydrates in the subsurface environment of Hydrate Ridge, offshore Oregon during ODP Leg 204, which will take place from July through September, 2002.

Dr. Frank R. Rack; Dr. Gerald Dickens; Kathryn Ford; Derryl Schroeder; Michael Storms; ODP Leg 201 Shipboard Scientific Party

2002-08-01T23:59:59.000Z

173

High Energy Efficiency Air Conditioning  

SciTech Connect (OSTI)

This project determined the performance of a new high efficiency refrigerant, Ikon B, in a residential air conditioner designed to use R-22. The refrigerant R-22, used in residential and small commercial air conditioners, is being phased out of production in developed countries beginning this year because of concerns regarding its ozone depletion potential. Although a replacement refrigerant, R-410A, is available, it operates at much higher pressure than R-22 and requires new equipment. R-22 air conditioners will continue to be in use for many years to come. Air conditioning is a large part of expensive summer peak power use in many parts of the U.S. Previous testing and computer simulations of Ikon B indicated that it would have 20 - 25% higher coefficient of performance (COP, the amount of cooling obtained per energy used) than R-22 in an air-cooled air conditioner. In this project, a typical new R-22 residential air conditioner was obtained, installed in a large environmental chamber, instrumented, and run both with its original charge of R-22 and then with Ikon B. In the environmental chamber, controlled temperature and humidity could be maintained to obtain repeatable and comparable energy use results. Tests with Ikon B included runs with and without a power controller, and an extended run for several months with subsequent analyses to check compatibility of Ikon B with the air conditioner materials and lubricant. Baseline energy use of the air conditioner with its original R-22 charge was measured at 90 deg F and 100 deg F. After changeover to Ikon B and a larger expansion orifice, energy use was measured at 90 deg F and 100 deg F. Ikon B proved to have about 19% higher COP at 90 deg F and about 26% higher COP at 100 deg F versus R-22. Ikon B had about 20% lower cooling capacity at 90 deg F and about 17% lower cooling capacity at 100 deg F versus R-22 in this system. All results over multiple runs were within 1% relative standard deviation (RSD). All of these values agree well with previous results and computer simulations of Ikon B performance versus R-22. The lower cooling capacity of Ikon B is not a concern unless a particular air conditioner is near its maximum cooling capacity in application. Typically, oversized A/C systems are installed by contractors to cover contingencies. In the extended run with Ikon B, which lasted about 4.5 months at 100 deg F ambient temperature and 68% compressor on time, the air conditioner performed well with no significant loss of energy efficiency. Post-run analysis of the refrigerant, compressor lubricant oil, compressor, compressor outlet tubing, and the filter/dryer showed minor effects but nothing that was considered significant. The project was very successful. All objectives were achieved, and the performance of Ikon B indicates that it can easily be retrofitted into R-22 air conditioners to give 15 - 20% energy savings and a 1 - 3 year payback of retrofit costs depending on location and use. Ikon B has the potential to be a successful commercial product.

Edward McCullough; Patrick Dhooge; Jonathan Nimitz

2003-12-31T23:59:59.000Z

174

Classification of heart valve condition using acoustic measurements  

SciTech Connect (OSTI)

Prosthetic heart valves and the many great strides in valve design have been responsible for extending the life spans of many people with serious heart conditions. Even though the prosthetic valves are extremely reliable, they are eventually susceptible to long-term fatigue and structural failure effects expected from mechanical devices operating over long periods of time. The purpose of our work is to classify the condition of in vivo Bjork-Shiley Convexo-Concave (BSCC) heart valves by processing acoustic measurements of heart valve sounds. The structural failures of interest for Bscc valves is called single leg separation (SLS). SLS can occur if the outlet strut cracks and separates from the main structure of the valve. We measure acoustic opening and closing sounds (waveforms) using high sensitivity contact microphones on the patient`s thorax. For our analysis, we focus our processing and classification efforts on the opening sounds because they yield direct information about outlet strut condition with minimal distortion caused by energy radiated from the valve disc.

Clark, G. [Lawrence Livermore National Lab., CA (United States)

1994-11-15T23:59:59.000Z

175

High explosive violent reaction (HEVR) from slow heating conditions  

SciTech Connect (OSTI)

The high explosives (HEs) developed and used at the Los Alamos National Laboratory are designed to be insensitive to impact and thermal insults under all but the most extreme conditions. Nevertheless, violent reactions do occasionally occur when HE is involved in an accident. The HE response is closely dependent on the type of external stimulus that initiates the reaction. For example, fast heating of conventional HE will probably result in fairly benign burning, while long-term, slow heating of conventional HE is more likely to produce an HEVR that will do much more damage to the immediate surroundings. An HEVR (High Explosive Violent Reaction) can be defined as the rapid release of energy from an explosive that ranges from slightly faster than a deflagration (very rapid burning) to a reaction that approaches a detonation. A number of thermal analyses have been done to determine slow heat/cook-off conditions that produce HE self-heating that can build up to a catastrophic runaway reaction. The author specifies the conditions that control reaction violence, describes experiments that produced an HEVR, describes analyses done to determine a heating rate threshold for HEVR, and lists possible HEVR situations.

Vigil, A.S.

1999-03-01T23:59:59.000Z

176

In-Situ Sampling and Characterization of Naturally Occurring Marine Methane Hydrate Using the D/V JOIDES Resolution  

SciTech Connect (OSTI)

The primary accomplishments of the JOI Cooperative Agreement with DOE/NETL in this quarter were the deployment of tools and measurement systems for testing on ODP Leg 201, which is intended to study hydrate deposits on the Peru margin as part of other scientific investigations. Additional accomplishments were related to the continuing evolution of tools and measurements systems in preparation for deployment on ODP Leg 204, Hydrate Ridge, offshore Oregon in July 2002. The design for PCS Gas Manifold was finalized and parts were procured to assemble the gas manifold and deploy this system with the Pressure Core Sampler (PCS) tool on ODP Leg 201. The PCS was deployed 17 times during ODP Leg 201 and successfully retrieved cores from a broad range of lithologies and sediment depths along the Peru margin. Eleven deployments were entirely successful, collecting between 0.5 and 1.0 meters of sediment at greater than 75% of hydrostatic pressure. The PCS gas manifold was used in conjunction with the Pressure Core Sampler (PCS) throughout ODP Leg 201 to measure the total volume and composition of gases recovered in sediment cores associated with methane hydrates. The results of these deployments will be the subject of a future progress report. The FUGRO Pressure Corer (FPC), one of the HYACE/HYACINTH pressure coring tools, and two FUGRO engineers were deployed on the D/V JOIDES Resolution during ODP Legs 201 to field-test this coring system at sites located offshore Peru. The HYACINTH project is a European Union (EU) funded effort to develop tools to characterize methane hydrate and measure physical properties under in-situ conditions. The field-testing of these tools provides a corollary benefit to DOE/NETL at no cost to this project. The opportunity to test these tools on the D/V JOIDES Resolution was negotiated as part of a cooperative agreement between JOI/ODP and the HYACINTH partners. The DVTP, DVTP-P, APC-methane, and APC-Temperature tools (ODP memory tools) were deployed onboard the R/V JOIDES Resolution and used extensively during ODP Leg 201. Preliminary results indicate successful deployments of these tools. An infrared-thermal imaging system (IR-TIS) was delivered to JOI/ODP for testing and use on ODP Leg 201 to identify methane hydrate intervals in the recovered cores. The results of these experiments will be the subject of a future progress report. This report presents an overview of the primary methods used for deploying the ODP memory tools and PCS on ODP Leg 201 and the preliminary operational results of this leg. Discussions regarding the laboratory analysis of the recovered cores and downhole measurements made during these deployments will be covered in a future progress report.

Frank Rack; Derryl Schroeder; Michael Storms; ODP Leg 201 Shipboard Scientific Party

2001-03-31T23:59:59.000Z

177

Central Air Conditioning | Department of Energy  

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

Central Air Conditioning Central Air Conditioning Central Air Conditioning May 30, 2012 - 8:01pm Addthis Central air conditioners circulate cool air through a system of supply and return ducts. | Photo courtesy of ©iStockphoto/DonNichols. Central air conditioners circulate cool air through a system of supply and return ducts. | Photo courtesy of ©iStockphoto/DonNichols. What does this mean for me? Central air conditioning systems are thermostatically controlled and convenient to use. Central air conditioning systems must be installed properly to operate efficiently. Central air conditioning systems can share ductwork with your heating system. Central air conditioners circulate cool air through a system of supply and return ducts. Supply ducts and registers (i.e., openings in the walls,

178

Energy conditions in f(R)-gravity  

E-Print Network [OSTI]

In order to shed some light on the current discussion about f(R)-gravity theories we derive and discuss the bounds imposed by the energy conditions on a general f(R) functional form. The null and strong energy conditions in this framework are derived from the Raychaudhuri's equation along with the requirement that gravity is attractive, whereas the weak and dominant energy conditions are stated from a comparison with the energy conditions that can be obtained in a direct approach via an effective energy-momentum tensor for f(R)-gravity. As a concrete application of the energy conditions to locally homogeneous and isotropic f(R)-cosmology, the recent estimated values of the deceleration and jerk parameters are used to examine the bounds from the weak energy condition on the parameters of two families of f(R)-gravity theories.

J. Santos; J. S. Alcaniz; M. J. Reboucas; F. C. Carvalho

2007-09-06T23:59:59.000Z

179

Methods of Conditioning Direct Methanol Fuel Cells  

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

Methods of Conditioning Direct Methanol Fuel Cells Methods of Conditioning Direct Methanol Fuel Cells Methods of Conditioning Direct Methanol Fuel Cells Methods for conditioning the membrane electrode assembly of a direct methanol fuel cell ("DMFC") are disclosed. Available for thumbnail of Feynman Center (505) 665-9090 Email Methods of Conditioning Direct Methanol Fuel Cells Methods for conditioning the membrane electrode assembly of a direct methanol fuel cell ("DMFC") are disclosed. In a first method, an electrical current of polarity opposite to that used in a functioning direct methanol fuel cell is passed through the anode surface of the membrane electrode assembly. In a second method, methanol is supplied to an anode surface of the membrane electrode assembly, allowed to cross over the polymer

180

Definition: Equipment Condition Monitor | Open Energy Information  

Open Energy Info (EERE)

Condition Monitor Condition Monitor Jump to: navigation, search Dictionary.png Equipment Condition Monitor A monitoring device that automatically measures and communicates equipment characteristics that are related to the "health" and maintenance of the equipment. These characteristics can include, but are not limited to temperature, dissolved gas, and loading. These devices can automatically generate alarm signals if conditions exceed preset thresholds.[1] Related Terms sustainability References ↑ https://www.smartgrid.gov/category/technology/equipment_condition_monitor [[C LikeLike UnlikeLike You like this.Sign Up to see what your friends like. ategory: Smart Grid Definitions|Template:BASEPAGENAME]] Retrieved from "http://en.openei.org/w/index.php?title=Definition:Equipment_Condition_Monitor&oldid=502601"

Note: This page contains sample records for the topic "worst-case conditions occurring" 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

Solar: hourly solar (direct normal (DNI), global horizontal (GHI), and  

Open Energy Info (EERE)

Cuba from NREL Cuba from NREL Dataset Summary Description (Abstract): Each data file is a set of hourly values of solar radiation and meteorological elements for a 1-year period. Solar radiation is modeled using the NREL METSTAT model, with surface observed cloud cover being the principal model input. Each container file contains up to 30 yearly files for one station, plus the Typical Meteorological Year (TMY) file for the selected station, plus documentation files and a TMY data reader file for use with Microsoft Excel. (Purpose): Simulations (Supplemental Information): The intended use of these data files is for computer simulations of solar energy conversion systems and building systems. The yearly data may be suitable for designing systems and their components to meet the worst-case conditions occurring at a location, if enough years of data are present. The TMY consists of months selected from individual years and concatenated to form a complete year.. Because of the selection criteria, these TMYs are not appropriate for simulations of wind energy conversion systems. A TMY provides a standard for hourly data for solar radiation and other meteorological elements that permit performance comparisons of system types and configurations for one or more locations. A TMY is not necessarily a good indicator of conditions over the next year, or even the next 5 years. Rather, it represents conditions judged to be typical over a long period of time, such as 30 years.

182

Solar: hourly solar (direct normal (DNI), global horizontal (GHI), and  

Open Energy Info (EERE)

Nepal from NREL Nepal from NREL Dataset Summary Description (Abstract): Each data file is a set of hourly values of solar radiation and meteorological elements for a 1-year period. Solar radiation is modeled using the NREL METSTAT model, with surface observed cloud cover being the principal model input. Each container file contains up to 30 yearly files for one station, plus the Typical Meteorological Year (TMY) file for the selected station, plus documentation files and a TMY data reader file for use with Microsoft Excel. (Purpose): Simulations (Supplemental Information): The intended use of these data files is for computer simulations of solar energy conversion systems and building systems. The yearly data may be suitable for designing systems and their components to meet the worst-case conditions occurring at a location, if enough years of data are present. The TMY consists of months selected from individual years and concatenated to form a complete year.. Because of the selection criteria, these TMYs are not appropriate for simulations of wind energy conversion systems. A TMY provides a standard for hourly data for solar radiation and other meteorological elements that permit performance comparisons of system types and configurations for one or more locations. A TMY is not necessarily a good indicator of conditions over the next year, or even the next 5 years. Rather, it represents conditions judged to be typical over a long period of time, such as 30 years.

183

Solar: hourly solar (direct normal (DNI), global horizontal (GHI), and  

Open Energy Info (EERE)

Kenya from NREL Kenya from NREL Dataset Summary Description (Abstract): Each data file is a set of hourly values of solar radiation and meteorological elements for a 1-year period. Solar radiation is modeled using the NREL METSTAT model, with surface observed cloud cover being the principal model input. Each container file contains up to 30 yearly files for one station, plus the Typical Meteorological Year (TMY) file for the selected station, plus documentation files and a TMY data reader file for use with Microsoft Excel. (Purpose): Simulations (Supplemental Information): The intended use of these data files is for computer simulations of solar energy conversion systems and building systems. The yearly data may be suitable for designing systems and their components to meet the worst-case conditions occurring at a location, if enough years of data are present. The TMY consists of months selected from individual years and concatenated to form a complete year.. Because of the selection criteria, these TMYs are not appropriate for simulations of wind energy conversion systems. A TMY provides a standard for hourly data for solar radiation and other meteorological elements that permit performance comparisons of system types and configurations for one or more locations. A TMY is not necessarily a good indicator of conditions over the next year, or even the next 5 years. Rather, it represents conditions judged to be typical over a long period of time, such as 30 years.

184

Solar: hourly solar (direct normal (DNI), global horizontal (GHI), and  

Open Energy Info (EERE)

China from NREL China from NREL Dataset Summary Description (Abstract): Each data file is a set of hourly values of solar radiation and meteorological elements for a 1-year period. Solar radiation is modeled using the NREL METSTAT model, with surface observed cloud cover being the principal model input. Each container file contains up to 30 yearly files for one station, plus the Typical Meteorological Year (TMY) file for the selected station, plus documentation files and a TMY data reader file for use with Microsoft Excel. (Purpose): Simulations (Supplemental Information): The intended use of these data files is for computer simulations of solar energy conversion systems and building systems. The yearly data may be suitable for designing systems and their components to meet the worst-case conditions occurring at a location, if enough years of data are present. The TMY consists of months selected from individual years and concatenated to form a complete year. Because of the selection criteria, these TMYs are not appropriate for simulations of wind energy conversion systems. A TMY provides a standard for hourly data for solar radiation and other meteorological elements that permit performance comparisons of system types and configurations for one or more locations. A TMY is not necessarily a good indicator of conditions over the next year, or even the next 5 years. Rather, it represents conditions judged to be typical over a long period of time, such as 30 years.

185

Solar: hourly solar (direct normal (DNI), global horizontal (GHI), and  

Open Energy Info (EERE)

Bangladesh stations from NREL Bangladesh stations from NREL Dataset Summary Description (Abstract): Each data file is a set of hourly values of solar radiation and meteorological elements for a 1-year period. Solar radiation is modeled using the NREL METSTAT model, with surface observed cloud cover being the principal model input. Each container file contains up to 30 yearly files for one station, plus the Typical Meteorological Year (TMY) file for the selected station, plus documentation files and a TMY data reader file for use with Microsoft Excel. (Purpose): Simulations (Supplemental Information): The intended use of these data files is for computer simulations of solar energy conversion systems and building systems. The yearly data may be suitable for designing systems and their components to meet the worst-case conditions occurring at a location, if enough years of data are present. The TMY consists of months selected from individual years and concatenated to form a complete year.. Because of the selection criteria, these TMYs are not appropriate for simulations of wind energy conversion systems. A TMY provides a standard for hourly data for solar radiation and other meteorological elements that permit performance comparisons of system types and configurations for one or more locations. A TMY is not necessarily a good indicator of conditions over the next year, or even the next 5 years. Rather, it represents conditions judged to be typical over a long period of time, such as 30 years.

186

Time and Materials Exhibit A General Conditions  

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

2, 6/14/13) Exhibit A General Conditions 2, 6/14/13) Exhibit A General Conditions Page 1 of 20 EXHIBIT "A" GENERAL CONDITIONS TABLE OF CONTENTS GC Title Page GC-1 DEFINITIONS (Aug 2012) .......................................................................................................... 3 GC-2A AUTHORIZED REPRESENTATIVES, COMMUNICATIONS AND NOTICES (Jan 2010) ........................................................................................................................................... 3 GC-3 INDEPENDENT CONTRACTOR (Jun 2009) ............................................................................. 4 GC-4 SUBCONTRACT INTERPRETATION (Jun 2009) ...................................................................... 4 GC-5 NOTICE TO PROCEED (Jul 2011)............................................................................................. 4

187

TIC et conditions de travail. Les enseignements  

E-Print Network [OSTI]

TIC et conditions de travail. Les enseignements de l'enquête COI Juin 2012 Nathalie Greenan, Sylvie TIC et conditions de travail Les enseignements de l'enquête COI NATHALIE GREENAN Centre d'études de l-2-11-128685-6 www.cee-recherche.fr #12;TIC et conditions de travail. Les enseignements de l'enquête COI R�SUM� Le

Paris-Sud XI, Université de

188

Turbine Vanes and Endwalls with Realistic Surface Conditions  

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

Vanes and Endwalls with Vanes and Endwalls with Realistic Surface Conditions SCIES Project 03-01-SR110 DOE COOPERATIVE AGREEMENT DE-FC26-02NT41431 Tom J. George, Program Manager, DOE/NETL Richard Wenglarz, Manager of Research, SCIES Project Awarded (7/1/2003, 36 Month Duration) $572,385 Total Contract Value ($572,385 DOE) PI: Karen A. Thole Co-PI: David G. Bogard Graduate Research Assistants: Nicholas Cardwell Patricia Demling Narayan Sundaram Scot Wye Gas Turbine Needs * Account for the effects of roughness from particle deposition and corrosion resulting from the use of synfuels * Account for the effects of blocked holes and gap leakages on predicting airfoil temperatures Overall Project Objectives * Determine effects of flow leakages at component interfaces occurring due to expansions/contractions

189

Communication: Thermodynamic analysis of critical conditions of polymer adsorption  

SciTech Connect (OSTI)

Polymer adsorption to solid surfaces is a ubiquitous phenomenon, which has attracted long-lasting attention. Dependent on the competition between the polymer-solid adsorption and polymer-solvent solvation interactions, a chain may assume either 3d solvated conformation when adsorption is weak or 2d adsorbed conformation when adsorption is strong. The transition between these conformations occurring upon variation of adsorption strength is quite sharp, and in the limit of “infinite” chain length, can be treated as a critical phenomenon. We suggest a novel thermodynamic definition of the critical conditions of polymer adsorption from the equality of incremental chemical potentials of adsorbed and free chains. We show with the example of freely jointed Lennard-Jones chains tethered to an adsorbing surface that this new definition provides a link between thermodynamic and geometrical features of adsorbed chains and is in line with classical scaling relationships for the fraction of adsorbed monomers, chain radii of gyration, and free energy.

Cimino, R.; Neimark, A. V., E-mail: aneimark@rutgers.edu [Department of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, 98 Brett Road, Piscataway, New Jersey 08854 (United States); Rasmussen, C. J. [DuPont Central Research and Development, Corporate Center for Analytical Sciences, Macromolecular Characterization, Route 141 and Henry Clay, Wilmington, Delaware 19803 (United States)] [DuPont Central Research and Development, Corporate Center for Analytical Sciences, Macromolecular Characterization, Route 141 and Henry Clay, Wilmington, Delaware 19803 (United States)

2013-11-28T23:59:59.000Z

190

President Obama Announces $400 Million Conditional Commitment...  

Office of Environmental Management (EM)

840 megawatts (MW) of new solar power annually. The project is expected to reach full capacity by 2013. Including the conditional commitment announced today, the Department has...

191

Wave Energy Converter Extreme Conditions Modeling Workshop |...  

Open Energy Info (EERE)

adopted extreme conditions design, modeling, and analysis techniques developed for offshore oil & gas and naval architecture applications. While leveraging these existing design...

192

Condition Monitoring of Offshore Wind Turbines.  

E-Print Network [OSTI]

?? The growing interest around offshore wind power, providing at the same time better wind conditions and fewer visual or environmental impacts, has lead many… (more)

Wisznia, Roman

2013-01-01T23:59:59.000Z

193

Aluminoborosilicate Waste Glass Dissolution under Alkaline Conditions...  

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

Aluminoborosilicate Waste Glass Dissolution under Alkaline Conditions at 40°C: Implications for a Chemical Affinity-Based Aluminoborosilicate Waste Glass Dissolution under...

194

Conditionally exactly soluble potentials and supersymmetry  

Science Journals Connector (OSTI)

It is shown that the condition required for one of the potentials considered by Dutra [Phys. Rev. A 47, R2435 (1993)] to be a conditionally exactly soluble potential is the same as that the potential can be put in an explicitly supersymmetric form.

Nivedita Nag; R. Roychoudhury; Y. P. Varshni

1994-06-01T23:59:59.000Z

195

Iron opacity predictions under solar interior conditions  

Science Journals Connector (OSTI)

......predictions under solar interior conditions...using Opacity Project atomic data for...conditions within the solar convective zone...greatest binding energy per nucleon...measurements for photon energies greater than 1...region of the solar convective zone...for the Opacity Project (OP) and opal......

D. S. Whittaker; G. J. Tallents

2009-12-21T23:59:59.000Z

196

Promises and Threats with Conditionals and Disjunctions  

E-Print Network [OSTI]

Promises and Threats with Conditionals and Disjunctions Robert van Rooij and Michael Franke Version promises and threats. But with a disjunction "You do . . . , or I'll do . . . " we can only make threats is trying to influence the behavior of the hearer by conditional promises and threats: whereas

van Rooij, Robert

197

Green's functions for Neumann boundary conditions  

E-Print Network [OSTI]

Green's functions for Neumann boundary conditions have been considered in Math Physics and Electromagnetism textbooks, but special constraints and other properties required for Neumann boundary conditions have generally not been noticed or treated correctly. In this paper, we derive an appropriate Neumann Green's function with these constraints and properties incorporated.

Jerrold Franklin

2012-01-29T23:59:59.000Z

198

Editing Nested Constraints and Application Conditions  

E-Print Network [OSTI]

Editing Nested Constraints and Application Conditions Karl Azab Carl v. Ossietzky Universit¨at Oldenburg, Germany azab@informatik.uni-oldenburg.de Abstract. Nested constraints and application conditions to get these editing features and implemented a tree-oriented visualization for editing nested constrains

Habel, Annegret

199

Conditioned Attics Overview | Building Energy Codes Program  

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

Conditioned Attics Overview Conditioned Attics Overview Adequate attic ventilation is a long-standing requirement in building codes. However, conditioned, unvented attics have the potential to reduce residential energy needs and are allowed by code under certain conditions. Such assemblies are sometimes called cathedralized attics because, as with cathedral ceilings, the insulation is in the rafters and/or roof deck. Publication Date: Wednesday, May 13, 2009 ta_conditioned_attics_overview.pdf Document Details Affiliation: DOE BECP Document Number: PNNL-SA-57260 Focus: Compliance Building Type: Residential Code Referenced: International Energy Conservation Code (IECC) Document type: Technical Articles Target Audience: Architect/Designer Builder Code Official Contractor Engineer Contacts Web Site Policies

200

Consumer response to uncertain promotions: An empirical analysis of conditional rebates  

Science Journals Connector (OSTI)

Abstract We formulate, estimate, and analyze a model of consumer response to promotions where consumers' receipt of the promotional reward is uncertain. The model incorporates consumers' risk aversion and their subjective assessment of the probability that they will get the reward. It is used to assess the effectiveness of a “conditional rebate”, where the uncertainty arises because the reward is contingent on an external event, versus a traditional rebate, which is similar in all respects except that it is certain. We estimate the model using a conjoint choice experiment. Response to conditional rebates is highly segmented and related to perceived thinking costs and savings and entertainment benefits of conditional rebates as well as to event involvement and gambling proneness. In our application, conditional rebates are more cost effective than certain rebates, mostly because consumers' subjective probability of the event occurring is higher than what market wisdom suggests.

Kusum L. Ailawadi; Karen Gedenk; Tobias Langer; Yu Ma; Scott A. Neslin

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "worst-case conditions occurring" 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

Probing Solid Catalysts Under Operating Conditions  

Science Journals Connector (OSTI)

...J.W., TRACING THE CONVERSION OF AURICHALCITE TO A COPPER CATALYST BY COMBINED X-RAY...synthetic variants of the mineral phase aurichalcite [Cu5, Zn,(OH)6(CO3)21...stages of the thermal treatment of the aurichalcite, no significant changes occur in the...

John Meurig Thomas; G. Neville Greaves

1994-09-16T23:59:59.000Z

202

Microsoft Word - S08254_CellConditions  

Office of Legacy Management (LM)

Shiprock, New Mexico, Disposal Shiprock, New Mexico, Disposal Cell Internal Water Balance and Cell Conditions February 2012 LMS/SHP/S08254 This page intentionally left blank LMS/SHP/S08254 Shiprock, New Mexico, Disposal Cell Internal Water Balance and Cell Conditions February 2012 This page intentionally left blank U.S. Department of Energy Shiprock Disposal Cell Internal Water Balance and Cell Conditions February 2012 Doc. No.S08254 Page i Contents Abbreviations ................................................................................................................................. iii Executive Summary .........................................................................................................................v 1.0 Introduction ............................................................................................................................1

203

Data Validation & Conditioning Kenneth Martin  

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

Validation & Conditioning Validation & Conditioning Kenneth Martin martin@electricpowergroup.com June 27-28, 2013 Washington, DC DOE/OE Transmission Reliability Program 2 The Problem  Phasors are well known to engineers ... but synchrophasors are not  Synchrophasor value dependencies - Precise timing source, algorithms, & hardware  Systems dependent on real-time communications - Delay (latency), bandwidth, errors, & dropouts  Need comparability with established systems (SCADA)  Wide area, high-speed - faster actions Need assurance measurements are correct and... Detect and fix data problems 3 Introduction  Data Validation and Conditioning Project - RFP issued in June 2012 - Awarded to EPG in December 2012 - Completion by October 2014

204

Casimir pistons with hybrid boundary conditions  

E-Print Network [OSTI]

The Casimir effect giving rise to an attractive or repulsive force between the configuration boundaries that confine the massless scalar field is reexamined for one to three-dimensional pistons in this paper. Especially, we consider Casimir pistons with hybrid boundary conditions, where the boundary condition on the piston is Neumann and those on other surfaces are Dirichlet. We show that the Casimir force on the piston is always repulsive, in contrast with the same problem where the boundary conditions are Dirichlet on all surfaces.

Xiang-hua Zhai; Xin-zhou Li

2007-04-30T23:59:59.000Z

205

Naturally Occurring Auxin Transport Regulators  

Science Journals Connector (OSTI)

...Isorhamnetin >==Fisetin >=fisetin) again included widely distributed flavone and flavonol aglycones...

MARK JACOBS; PHILIP H. RUBERY

1988-07-15T23:59:59.000Z

206

CSCM: Experimental and Simulation Results  

E-Print Network [OSTI]

The Copper-Stabilizer Continuity Measurement (CSCM) was devised to obtain a direct and complete qualification of the continuity in the 13 kA bypass circuits of the LHC, especially in the copper-stabilizer of the busbar joints and the bolted connections in the diodeleads, as well as in lyra connections. The circuit under test is brought to about 20 K, a voltage is applied to open the diodes by-passing the magnets, and the low-inductance circuit is powered according to a pre-defined series of current profiles. The profiles are designed to successively increase the thermal load on the busbar joints up to a level that corresponds to worst-case operating conditions at nominal energy. In this way, the circuit is tested for thermal runaways in the joints - the very process that could prove catastrophic if it occurred under nominal conditions with the full stored energy of the circuit. A type test of the CSCM was successfully carried out in April 2013 on one main dipole and one main quadrupole circuit of the LHC. Thi...

Rowan, S; Brodzinski, K; Charifoulline, Z; Denz, R; Romera, I; Roger, V; Siemko, A; Schmidt, R; Steckert, J; Thiesen, H; Verweij, A; Willering, G; Wollmann, D; Zerlauth, M; Pfeffer, H

2014-01-01T23:59:59.000Z

207

EFFECTS OF EXTREME AND UNUSUAL CONDITIONS ON LANA ALLOYS: INTERIM REPORT, FY14 (U)  

SciTech Connect (OSTI)

The TTP proposed research aimed at determining: a) the rate at which these changes occurred and the effect of initial conditions, especially in the early phases of Hydrogen Heat Treatment (HHT), b) whether or not different LANA alloys would show similar effects, and c) whether common contaminants/poisons impacted LANA alloy hydride chemistry similarly to what had been found for Pd and Pd-alloy hydride chemistry.

Shanahan, Kirk L.

2014-04-25T23:59:59.000Z

208

HYDROGEN-ASSISTED FAILURE OF ALLOYS X-750 AND 625 UNDER SLOW STRAIN-RATE CONDITIONS  

E-Print Network [OSTI]

HYDROGEN-ASSISTED FAILURE OF ALLOYS X-750 AND 625 UNDER SLOW STRAIN-RATE CONDITIONS R.S. Daum, A-purity, deaerated water in order to determine whether hydrogen embrittlement occurs in these alloys at room psig nitrogen (0 cc H2/kg H2O STP) and 40 psig hydrogen (60 cc H2/kg H2O STP), on Alloy X-750 in two

Motta, Arthur T.

209

The Inhomogeneous Structure of Water at Ambient Conditions  

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

The Inhomogeneous Structure of Water at The Inhomogeneous Structure of Water at Ambient Conditions The water molecule, H2O, has deceptively simple structure, but contains all the prerequisites for building complexity. The oxygen atom has a greater affinity for electrons and pulls them away from the hydrogens making them slightly positive. On the back side of molecule oxygen has a lone pair - electrons that do not assist in binding the hydrogens in the molecule, but to which the hydrogens of another water molecule can be attracted to form a so-called hydrogen bond (H-bond). Hydrogen bond is much weaker than the bonding inside water molecule, but it is still strong enough with the possibility to make from one up to four H-bonds per water molecule. The network connected by H-bonds between water molecules makes liquid water so special compared to other normal liquids with about 66 anomalies, e.g. density maximum at 4 °C and large heat capacity. The anomalies of water become extreme in the supercooled region (below freezing point), whilst they are also present at ambient conditions where most of waters' physical, chemical and biological processes of importance occur. Water at ambient conditions has traditionally been considered as a homogeneous distribution of near- tetrahedral H-bonded structures with thermal fluctuations increasing with temperature. This picture has been challenged by recent studies based on x-ray Raman (XRS), x-ray absorption spectroscopy (XAS) and x-ray emission spectroscopy (XES), suggesting two distinct local structures with tetrahedral as a minority and highly H-bond distorted asymmetrical as the majority. In particular, the proposed predominant asymmetrical structure has caused intense debate in the last years.

210

Effective boundary condition at a rough surface starting from a slip condition.  

E-Print Network [OSTI]

, set in a channel with a rough boundary, of small amplitude and wavelength . It was shown recently thatEffective boundary condition at a rough surface starting from a slip condition. Anne, for any non-degenerate roughness pattern, and for any reasonable condition imposed at the rough boundary

Gerard-Varet, David - Institut de Mathématiques de Jussieu, Université Paris 7

211

Air-Conditioning Basics | Department of Energy  

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

Air-Conditioning Basics Air-Conditioning Basics Air-Conditioning Basics August 16, 2013 - 1:59pm Addthis Air conditioning is one of the most common ways to cool homes and buildings. How Air Conditioners Work Air conditioners employ the same operating principles and basic components as refrigerators. Refrigerators use energy (usually electricity) to transfer heat from the cool interior of the refrigerator to the relatively warm surroundings; likewise, an air conditioner uses energy to transfer heat from the interior space to the relatively warm outside environment. An air conditioner uses a cold indoor coil called the evaporator. The condenser, a hot outdoor coil, releases the collected heat outside. The evaporator and condenser coils are serpentine tubing surrounded by aluminum fins. This tubing is usually made of copper.

212

Lab Breakthrough: Desiccant Enhanced Evaporative Air Conditioning |  

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

Desiccant Enhanced Evaporative Air Conditioning Desiccant Enhanced Evaporative Air Conditioning Lab Breakthrough: Desiccant Enhanced Evaporative Air Conditioning May 29, 2012 - 5:22pm Addthis This breakthrough combines desiccant materials, which remove moisture from the air using heat, and advanced evaporative technologies to develop a cooling unit that uses 90 percent less electricity and up to 80 percent less total energy than traditional air conditioning. This solution, called the desiccant enhanced evaporative air conditioner (DEVAP), also controls humidity more effectively to improve the comfort of people in buildings. View the entire Lab Breakthrough playlist. What are the key facts? Recent materials advances and liquid desiccant advances to design the compact and cost-effective DEVAP system. DEVAP uses 90 percent less electricity and up to 80 percent less

213

Lab Breakthrough: Desiccant Enhanced Evaporative Air Conditioning |  

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

Lab Breakthrough: Desiccant Enhanced Evaporative Air Conditioning Lab Breakthrough: Desiccant Enhanced Evaporative Air Conditioning Lab Breakthrough: Desiccant Enhanced Evaporative Air Conditioning May 29, 2012 - 5:22pm Addthis This breakthrough combines desiccant materials, which remove moisture from the air using heat, and advanced evaporative technologies to develop a cooling unit that uses 90 percent less electricity and up to 80 percent less total energy than traditional air conditioning. This solution, called the desiccant enhanced evaporative air conditioner (DEVAP), also controls humidity more effectively to improve the comfort of people in buildings. View the entire Lab Breakthrough playlist. What are the key facts? Recent materials advances and liquid desiccant advances to design the compact and cost-effective DEVAP system.

214

Fundamental mechanisms in flue gas conditioning  

SciTech Connect (OSTI)

The overall goal of this research project is to formulate a mathematical model of flue gas conditioning. This model will be based on an understanding of why ask properties, such as cohesivity and resistivity, are changed by conditioning. Such a model could serve as a component of the performance models of particulate control devices where flue gas conditioning is used. There are two specific objectives of this research project, which divide the planned research into two main parts. One part of the project is designed to determine how ash particles are modified by interactions with sorbent injection processes and to describe the mechanisms by which these interactions affect fine particle collection. The objective of the other part of the project is to identify the mechanisms by which conditioning agents, including chemically active compounds, modify the key properties of fine fly ash particles.

Bush, P.V.; Snyder, T.R.

1992-01-09T23:59:59.000Z

215

Ocean Conditions, Salmon, and Climate Change  

E-Print Network [OSTI]

Ocean Conditions, Salmon, and Climate Change John Ferguson1 NOAA Fisheries Northwest Fisheries're finding - adult forecasts and climate change) #12;1. Past (for context) · The coastal pelagic ecosystem

216

Comment on Li pellet Conditioning in TFTR  

SciTech Connect (OSTI)

Li pellet conditioning in TFTR results in a reduction of the edge electron density which allows increased neutral beam penetration, central heating, and fueling. Consequently the temperature profiles became more peaked with higher central Ti, Te, and neutron emission rates.

R.V. Budny

2011-05-23T23:59:59.000Z

217

AGRICULTURE, 2003 Current Wisconsin Farm Financial Conditions  

E-Print Network [OSTI]

STATUS OF WISCONSIN AGRICULTURE, 2003 Current Wisconsin Farm Financial Conditions Situation and Challenges Department of Agricultural and Applied Economics College of Agricultural and Life Sciences OF WISCONSIN AGRICULTURE, 2003 An Annual Report by: Department of Agricultural and Applied Economics College

Radeloff, Volker C.

218

Boundary conditions for the lattice Boltzmann method.  

E-Print Network [OSTI]

?? Based on the no-slip boundary condition for walls at rest for the lattice Boltzmann Bathnagar-Gross-Krook method by J.C.G. Verschaeve [Phys. Rev. 80,036703 (2009)], a… (more)

le coupanec, erwan

2010-01-01T23:59:59.000Z

219

Space Conditioning Standing Technical Commitee Presentation  

Broader source: Energy.gov [DOE]

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

220

Air Conditioning Heating and Refrigeration Institute Comment  

Broader source: Energy.gov [DOE]

These comments are submitted by the Air-Conditioning, Heating, and Refrigeration Institute (AHRI) in response to the U.S. Department of Energy’s (DOE) notice in the July 3, 2014 Federal Register...

Note: This page contains sample records for the topic "worst-case conditions occurring" 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

Alternatives to Electric Air Conditioning Systems  

E-Print Network [OSTI]

The rapid escalation of electricity prices has created an opportunity to re-introduce gas-fired air conditioning systems to the commercial building market. In 1985 Gas Research Institute initiated a program to develop an advanced gas engine...

Lindsay, B. B.; Koplow, M. D.

1988-01-01T23:59:59.000Z

222

Changing patterns of air conditioning in Japan  

Science Journals Connector (OSTI)

Japanese air conditioning patterns have changed significantly over the past 30 years. The changes can be linked to increasing affluence and the consequent changes Japanese life patterns, but also to changes in...

Harold Wilhite; Hidetoshi Nakagami…

1999-01-01T23:59:59.000Z

223

Heating, Ventilation and Air Conditioning Efficiency  

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

Presented By: WALTER E. JOHNSTON, PE Presented By: WALTER E. JOHNSTON, PE CEM, CEA, CLEP, CDSM, CPE Conditioning (HVAC) system is to provide and maintain a comfortable environment within a building for the occupants or for the process being conducted Many HVAC systems were not designed with energy efficiency as one of the design factors 3 Air Air is the major conductor of heat. Lack of heat = air conditioning OR 4 Btu - Amount of heat required to raise one pound of water 1 F = 0.252 KgCal 1 Pound of Water = About 1 Pint of Water ~ 1 Large Glass 1 Kitchen Match Basics of Air Conditioning = 1 Btu 5 = 6 Low Cost Cooling Unit 7 8 Typical Design Conditions 75 degrees F temperature 50% relative humidity 30 - 50 FPM air movement

224

Lead in Your Drinking Water Lead (Pb) is an extremely toxic heavy metal that unfortunately occurs widely in our environment. The  

E-Print Network [OSTI]

Lead in Your Drinking Water Lead (Pb) is an extremely toxic heavy metal that unfortunately occurs of metallic lead in the soil (4) Drinking water ­ water as it leaves the treatment plant has no lead of connection. (In some cases, the water meter as well as the curb stop is outside the house.) Common metals

Maynard, J. Barry

225

Climate Change Lecture (ID:180) This lecture will give an overview of climate changes that have occurred in the past and  

E-Print Network [OSTI]

Climate Change Lecture (ID:180) Outline This lecture will give an overview of climate changes to understand climate changes that have occurred in the past. This is a lecture based activity with opportunities to ask questions. Further details Students will learn: 1. Different time-scales of climate changes

Harman, Neal.A.

226

Congenital heart disease usually refers to abnormalities in the heart's structure or function that arise before birth. They occur often and in  

E-Print Network [OSTI]

Congenital heart disease usually refers to abnormalities in the heart's structure or function that arise before birth. They occur often and in many forms. Congenital heart diseases are found in 19 because of their distinct clinical presentation. A clear picture of how the heart forms is crucial

Cai, Long

227

CLM prescribes all solar absorption to occur in the top-most snow layer. However, our SNow, ICe, and Aerosol Radiative model  

E-Print Network [OSTI]

CLM prescribes all solar absorption to occur in the top-most snow layer. However, our SNow, ICe at the surface and strong thermal insulation by the snow. Thus energy deposition beneath the surface layer can. Albedo decrease over the Tibetan Plateau indicates less snow cover, caused by sub-surface melt and ice

Zender, Charles

228

The conquest of the nano-cosmos is occurring simultaneously in almost ev-ery field with a strong interdisciplinary and an increasing transdisciplinary  

E-Print Network [OSTI]

Preface The conquest of the nano-cosmos is occurring simultaneously in almost ev- ery field, optical, magnetic, and (bio)chemical properties of materials are beginning to be mastered on a nano-scale. This enables the fabrication of devices that rely on effects on the nano-scale. For the creation

Grundmann, Marius

229

Nonequilibrium Markov processes conditioned on large deviations  

E-Print Network [OSTI]

We consider the problem of conditioning a Markov process on a rare event and of representing this conditioned process by a conditioning-free process, called the effective or driven process. The basic assumption is that the rare event used in the conditioning is a large deviation-type event, characterized by a convex rate function. Under this assumption, we construct the driven process via a generalization of Doob's $h$-transform, used in the context of bridge processes, and show that this process is equivalent to the conditioned process in the long-time limit. The notion of equivalence that we consider is based on the logarithmic equivalence of path measures and implies that the two processes have the same typical states. In constructing the driven process, we also prove equivalence with the so-called exponential tilting of the Markov process, which is used with importance sampling to simulate rare events, and which gives rise, from the point of view of statistical mechanics, to a nonequilibrium version of the canonical ensemble. Other links between our results and the topics of bridge processes, quasi-stationary distributions, stochastic control, and conditional limit theorems are mentioned.

Raphael Chetrite; Hugo Touchette

2014-05-20T23:59:59.000Z

230

Incorporating local boundary conditions into nonlocal theories  

E-Print Network [OSTI]

We study nonlocal equations from the area of peridynamics on bounded domains. In our companion paper, we discover that, on $\\mathbb{R}^n$, the governing operator in peridynamics, which involves a convolution, is a bounded function of the classical (local) governing operator. Building on this, we define an abstract convolution operator on bounded domains. The abstract convolution operator is a function of the classical operator, defined by a Hilbert basis available due to the purely discrete spectrum of the latter. As governing operator of the nonlocal equation we use a function of the classical operator, this allows us to incorporate local boundary conditions into nonlocal theories. For the homogeneous wave equation with the considered boundary conditions, we prove that continuity is preserved by time evolution. We give explicit solution expressions for the initial value problems with prominent boundary conditions such as periodic, antiperiodic, Neumann, and Dirichlet. In order to connect to the standard convolution, we give an integral representation of the abstract convolution operator. We present additional "simple" convolutionsbased on periodic and antiperiodic boundary conditions that lead Neumann and Dirichlet boundary conditions. We present a numerical study of the solutions of the wave equation. For discretization, we employ a weak formulation based on a Galerkin projection and use piecewise polynomials on each element which allows discontinuities of the approximate solution at the element borders. We study convergence order of solutions with respect to polynomial order and observe optimal convergence. We depict the solutions for each boundary condition.

Burak Aksoylu; Horst Reinhard Beyer; Fatih Celiker

2014-11-12T23:59:59.000Z

231

Sustainability and Market Conditions:The Resource Efficiency paradox  

E-Print Network [OSTI]

Sustainability and Market Conditions energy conservation doand Market Conditions LITERATURE REVIEW Energy and resourcethe effect of market conditions on energy and resource

Delmas, Magali; Pekovic, Sanja

2012-01-01T23:59:59.000Z

232

Summary on the depressurization from supercritical pressure conditions  

SciTech Connect (OSTI)

When a fluid discharges from a high pressure and temperature system, a 'choking' or critical condition occurs, and the flow rate becomes independent of the downstream pressure. During a postulated loss of coolant accident (LOCA) of a water reactor the break flow will be subject to this condition. An accurate estimation of the critical flow rate is important for the evaluation of the reactor safety, because this flow rate controls the loss of coolant inventory and energy from the system, and thus has a significant effect on the accident consequences[1]. In the design of safety systems for a super critical water reactor (SCWR), postulated LOCA transients are particularly important due to the lower coolant inventory compared to a typical PWR for the same power output. This lower coolant inventory would result in a faster transient response of the SCWR, and hence accurate prediction of the critical discharge is mandatory. Under potential two-phase conditions critical flow is dominated by the vapor content or quality of the vapor, which is closely related with the onset of vaporization and the interfacial interaction between phases [2]. This presents a major challenge for the estimation of the flow rate due to the lack of the knowledge of those processes, especially under the conditions of interest for the SCWR. According to the limited data of supercritical fluids, the critical flows at conditions above the pseudo-critical point seem to be fairly stable and consistent with the subcritical homogeneous equilibrium model (HEM) model predictions, while having a lower flow rate than those in the two-phase region. Thus the major difficulty in the prediction of the depressurization flow rates remains in the region where two phases co-exist at the top of the vapor dome. In this region, the flow rate is strongly affected by the nozzle geometry and tends to be unstable. Various models for this region have been developed with different assumptions, e.g. the HEM and Moody model [3], and the Henry-Fauske non-equilibrium model [4], and are currently used in subcritical pressure reactor safety design[5]. It appears that some of these models could be reasonably extended to above the thermodynamic pseudo-critical point. The more stable and lower discharge flow rates observed in conditions above the pseudo-critical point suggests that even though SCWR's have a smaller coolant inventory, the safety implications of a LOCA and the subsequent depressurization may not be as severe as expected, this however needs to be confirmed by a rigorous evaluation of the particular event and further evaluation of the critical flow rate. This paper will summarize activities on critical flow models, experimental data and numerical modeling during blowdown from supercritical pressure conditions under the International Atomic Energy Agency (IAEA) Coordinated Research Project (CRP) on 'Heat Transfer Behaviour and Thermo-hydraulics Code testing for SCWRs'. (authors)

Anderson, M. [Univ. of Wisconsin Madison, 1500 Engineering Dr., Madison, WI 53706 (United States); Chen, Y. [Dept. of Reactor Engineering, Research and Design, Reactor Thermal-Hydraulic Lab., China Inst. of Atomic Energy, P.O.Box 275 59, 102413 Beijing (China); Ammirable, L. [JRC/Inst. for Energy and Transport (Netherlands); Novog, D. [Dept. of Engineering Physics, McMaster Univ., 1280 Main Street, ON (Canada); Yamada, K. [International Atomic Energy Agency, Vienna International Centre, P.O. Box 100, 1400 Vienna (Austria)

2012-07-01T23:59:59.000Z

233

Location of the M 2.0 Earthquake on 08/22/2010 that Occurred 25 km North of West Valley, New York.  

E-Print Network [OSTI]

1 Location of the M 2.0 Earthquake on 08/22/2010 that Occurred 25 km North of West Valley, New York at 16:41:47 (UTC) about 25 km north of West Valley, New York. There were no felt reports by residents and their distribution is plotted in Figure 2. 22 August 2010, Md 2.0 Earthquake 15 miles north of West Valley, NY -78

234

Drift Tube Linac Conditioning of Tank1  

E-Print Network [OSTI]

Tank1 of the Drift Tube Linac (DTL) of the Linac4 has been conditioned at the Linac4 tunnel. The tank was tuned for resonance at 352.2 MHz, and stable operation has been achieved with 725 µs long RF pulses at a repetition rate of 1 Hz. The maximum RF level that has been reached is 810 kW with a pulse width of 600 µs. Since this was the first RF structure exclusively conditioned in the Linac4 tunnel with the operation and control software of Linac4, some related issues and limitations had to be taken into account.

Shafqat, N; Toor, W A

2014-01-01T23:59:59.000Z

235

Landau's necessary density conditions for LCA groups  

E-Print Network [OSTI]

H. Landau's necessary density conditions for sampling and interpolation may be viewed as a general principle resting on a basic fact of Fourier analysis: The complex exponentials $e^{i kx}$ ($k$ in $\\mathbb{Z}$) constitute an orthogonal basis for $L^2([-\\pi,\\pi])$. The present paper extends Landau's conditions to the setting of locally compact abelian (LCA) groups, relying in an analogous way on the basics of Fourier analysis. The technicalities--in either case of an operator theoretic nature--are however quite different. We will base our proofs on the comparison principle of J. Ramanathan and T. Steger.

Gröchenig, K; Seip, K

2008-01-01T23:59:59.000Z

236

Subsidiary condition for Yang-Mills theory  

Science Journals Connector (OSTI)

A subsidiary condition for Yang-Mills theory is given. A prescription is proposed for using such a subsidiary condition to eliminate unphysical degrees of freedom from gauge theories in covariant gauges. It is pointed out that elimination of such unphysical modes can generate explicit nonlocal interactions among particles in the physical subspace. The Coulomb interactions among charged particles in QED is one such nonlocal interaction that can be generated in this way. It is argued that confining forces among color-bearing combinations of quarks and transverse gluons in QCD might be another.

Kurt Haller

1983-12-15T23:59:59.000Z

237

Incremental condition estimation for sparse matrices  

SciTech Connect (OSTI)

Incremental condition estimation provides an estimate for the smallest singular value of a triangular matrix. In particular, it gives a running estimate of the smallest singular value of a triangular factor matrix as the factor is generated one column or row at a time. An incremental condition estimator for dense matrices was originally suggested by Bischof. In this paper this scheme is generalized to handle sparse triangular matrices, especially those that are factors of sparse matrices. Numerical experiments on a variety of matrices demonstrate the reliability of this scheme in estimating the smallest singular value. A partial description of its implementation in a sparse matrix factorization code further illustrates its practicality.

Bischof, C.H. (Argonne National Lab., IL (United States)); Lewis, J.G.; Pierce, D.J. (Boeing Computer Servies, Seattle, WA (United States))

1990-10-01T23:59:59.000Z

238

STRONTIUM AND ACTINIDE SORPTION BY MST AND MMST UNDER CONDITIONS REVELANT TO THE SMALL COLUMN ION-EXCHANGE PROCESS  

SciTech Connect (OSTI)

A series of tests were performed to examine the kinetics of Sr and actinide removal by monosodium titanate (MST) and modified monosodium titanate (mMST) under mixing conditions similar to what will be provided in the Small Column Ion Exchange (SCIX) Program. Similar removal kinetics were seen for two different mixing energies, indicating that under these conditions bulk solution transport is not the rate limiting step for Sr and actinide removal. Sr removal was found to be rapid for both MST and mMST, reaching steady-state conditions within six hours. In contrast, at least six weeks is necessary to reach steady-state conditions for Pu with MST. For mMST, steady-state conditions for Pu were achieved within two weeks. The actual contact time required for the SCIX process will depend on starting sorbate concentrations as well as the requirements for the decontaminated salt solution. During testing leaks occurred in both the MST and mMST tests and evidence of potential desorption was observed. The desorption likely occurred as a result of the change in solids to liquid phase ratio that occurred due to the loss of solution. Based on these results, Savannah River National Laboratory (SRNL) recommended additional testing to further study the effect of changing phase ratios on desorption. This testing is currently in progress and results will be documented in a separate report.

Taylor-Pashow, K.; Hobbs, D.; Poirier, M.

2011-05-06T23:59:59.000Z

239

Generalized Elastic Model: thermal vs non-thermal initial conditions. Universal scaling, roughening, ageing and ergodicity  

E-Print Network [OSTI]

We study correlation properties of the generalized elastic model which accounts for the dynamics of polymers, membranes, surfaces and fluctuating interfaces, among others. We develop a theoretical framework which leads to the emergence of universal scaling laws for systems starting from thermal (equilibrium) or non-thermal (non-equilibrium) initial conditions. Our analysis incorporates and broadens previous results such as observables' double scaling regimes, (super)roughening and anomalous diffusion, and furnishes a new scaling behavior for correlation functions at small times (long distances). We discuss ageing and ergodic properties of the generalized elastic model in non-equilibrium conditions, providing a comparison with the situation occurring in continuous time random walk. Our analysis also allows to assess which observable is able to distinguish whether the system is in or far from equilibrium conditions in an experimental set-up.

Taloni, Alessandro; Klafter, Joseph; 10.1209/0295-5075/97/30001

2012-01-01T23:59:59.000Z

240

A Performance Comparison of Condition Based Monitoring Damage Features Used in Rotating Machines under Variable Conditions /  

E-Print Network [OSTI]

Condition monitoring of wind turbines: Techniques andand fault detection of wind turbines and related algorithms:and fault diagnostics of wind turbines,” in Prognostics and

Robinson, Luke Thomas

2013-01-01T23:59:59.000Z

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


241

Existing and prospective blast-furnace conditions  

SciTech Connect (OSTI)

Blast-furnace conditions are investigated by means of a multizone model. The expected performance of prospective technologies is assessed, as well as the trends in blast-furnace processes. The model permits the identification of means of overcoming practical difficulties.

I.G. Tovarovskii; V.I. Bol'shakov; V.P. Lyalyuk; A.E. Merkulov; D. V. Pinchuk [Ukrainian Academy of Sciences, Dnepropetrovsk (Ukraine). Institute of Ferrous Metallurgy

2009-07-15T23:59:59.000Z

242

-Background -Assessment of current water conditions  

E-Print Network [OSTI]

like we are in an active weather pattern for western Colorado this week, with one system coming through in Colorado and some minor expansion in western Wyoming. This week, as conditions have continued to trend by the Colorado Climate Center utilizes : NWS, Snotel, CoCoRaHS and CoAgMet #12;#12;Upper Colorado Normal

243

AGRICULTURE, 2002 Current Wisconsin Farm Financial Conditions  

E-Print Network [OSTI]

STATUS OF WISCONSIN AGRICULTURE, 2002 Current Wisconsin Farm Financial Conditions Situation of the Wisconsin Cranberry Industry Department of Agricultural and Applied Economics College of Agricultural-Extension #12;STATUS OF WISCONSIN AGRICULTURE, 2002 An Annual Report by: Department of Agricultural and Applied

Radeloff, Volker C.

244

AGRICULTURE, 2001 Current Wisconsin Farm Financial Conditions  

E-Print Network [OSTI]

STATUS OF WISCONSIN AGRICULTURE, 2001 Current Wisconsin Farm Financial Conditions Situation and Outlook for Farm Products and Inputs Special Articles · Outlook for the National Economy and Agricultural Policies · Smart Growth and Wisconsin Agriculture · The Wisconsin Agricultural Economy: A Broader

Radeloff, Volker C.

245

NON-STATIONARY CONDITION MONITORING THROUGH EVENT  

E-Print Network [OSTI]

in large diesel engines used for propulsion and power generation. Such operation involves frequent changes the technique for non-stationary condition monitoring of large diesel engines based on acoustical emission that cannot be separated from alarms originating from real faults. MAN B&W Diesel has conducted experiments

246

Physical conditions on the early Earth  

Science Journals Connector (OSTI)

...for the emergence of life on the early Earth organized by S. Leach, I. W. M. Smith...Cockell Physical conditions on the early Earth Jonathan I Lunine * * ( jlunine@lpl...AZ 85721, USA. The formation of the Earth as a planet was a large stochastic process...

2006-01-01T23:59:59.000Z

247

Alternative Refrigerants for Building Air Conditioning  

E-Print Network [OSTI]

The majority of building air conditioning has traditionally been achieved with vapor compression technology using CFC-I I or HCFC-22 as refrigerant fluids. CFC-11 is being successfully replaced by HCFC-123 (retrofit or new equipment) or by HFC- 134a...

Bivens, D. B.

1996-01-01T23:59:59.000Z

248

Conditional probability on a quantum logic  

SciTech Connect (OSTI)

We analyze two approaches to conditional probability. The first approach follows Gudder and Marchand, Maczynsky, Cassinelli and Beltrametti, Cassinelli and Truini. The second approach follows Renyi and Kalmar. The main result is a characterization of the first approach with the help of a function, similarly as in the second approach.

Nanasiova, O.

1986-11-01T23:59:59.000Z

249

Condition Monitoring and Management from Acoustic  

E-Print Network [OSTI]

is about condition monitoring of large diesel engines from acoustic emission signals. The experiments have been focused on a specific and severe fault called scuffing. The fault is generally assumed to arise of this work is the analysis of the angular position changes of the engine related events such as fuel

250

Asymptotic Analysis of Multivariate Tail Conditional Expectations  

E-Print Network [OSTI]

instruments so that the resulting position (X) - X is acceptable to regulators/supervisors. The coherent risk related to various coherent risk measures. In the univari- ate case, the tail conditional expectation is asymptotically proportional to the value-at-risk, a popular risk measure. The focus of this paper

Li, Haijun

251

Asymptotic Analysis of Multivariate Tail Conditional Expectations  

E-Print Network [OSTI]

instruments so that the resulting position (X) - X is acceptable to regulators/supervisors. The coherent risk and are closely related to various coherent risk measures. In the univari- ate case, the tail conditional expectation is asymptotically proportional to the value-at-risk, a popular risk measure. The focus

Li, Haijun

252

CONDENSATION OF CHONDRULES: CONDITIONS FOR "FIERY RAIN".  

E-Print Network [OSTI]

CONDENSATION OF CHONDRULES: CONDITIONS FOR "FIERY RAIN". L. Grossman1,2 and A. V. Fedkin1 . 1 Dept little Na condenses above the solidus, and Na2O contents of most chondrules plot above Na2O was condensed at near-liquidus temperatures. In the context of melting chondrule precursors, we showed that Na

Grossman, Lawrence

253

Fuel conditioning facility zone-to-zone transfer administrative controls.  

SciTech Connect (OSTI)

The administrative controls associated with transferring containers from one criticality hazard control zone to another in the Argonne National Laboratory (ANL) Fuel Conditioning Facility (FCF) are described. FCF, located at the ANL-West site near Idaho Falls, Idaho, is used to remotely process spent sodium bonded metallic fuel for disposition. The process involves nearly forty widely varying material forms and types, over fifty specific use container types, and over thirty distinct zones where work activities occur. During 1999, over five thousand transfers from one zone to another were conducted. Limits are placed on mass, material form and type, and container types for each zone. Ml material and containers are tracked using the Mass Tracking System (MTG). The MTG uses an Oracle database and numerous applications to manage the database. The database stores information specific to the process, including material composition and mass, container identification number and mass, transfer history, and the operators involved in each transfer. The process is controlled using written procedures which specify the zone, containers, and material involved in a task. Transferring a container from one zone to another is called a zone-to-zone transfer (ZZT). ZZTs consist of four distinct phases, select, request, identify, and completion.

Pope, C. L.

2000-06-21T23:59:59.000Z

254

Loading of Arabidopsis Centromeric Histone CENH3 Occurs Mainly during G2 and Requires the Presence of the Histone Fold Domain  

Science Journals Connector (OSTI)

...centromeric DNA sequences are not (for review, see Houben and Schubert, 2003). Although...seedlings were incubated for 16 h under standard light/dark conditions prior to EYFP...equipped with 25/0.80 and 100/1.4 plan apochromat objectives and a three-chip...

Inna Lermontova; Veit Schubert; Joerg Fuchs; Sabina Klatte; Jiri Macas; Ingo Schubert

2006-10-06T23:59:59.000Z

255

Space Conditioning Standing Technical Commitee Presentation  

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

Partnership for Improved Residential Construction Partnership for Improved Residential Construction ba-pirc.org Building America Stakeholder Meeting 2012 RESNET Building Performance Conference Space Conditioning Standing Technical Committee Eric Martin and Janet McIlvaine Partnership for Improved Residential Construction Florida Solar Energy Center Ba.spaceconditioning.stc@gmail.com February 29, 2012 2 | Building America Partnership for Improved Residential Construction ba-pirc.org https://sites.google.com/site/bastcspaceconditioning/ Space Conditioning Standing Technical Committee Upcoming Activity Upcoming Activity Files, docs, schedule, etc. Files, docs, schedule, etc. 3 | Building America Partnership for Improved Residential Construction ba-pirc.org * U.S. Department of Energy Building Technologies Program directs the Building America program

256

Physical Market Conditions, Paper Market Activity,  

Gasoline and Diesel Fuel Update (EIA)

12 12 Physical Market Conditions, Paper Market Activity, and the WTI-Brent Spread Bahattin Büyükşahin Thomas K. Lee James T. Moser Michel A. Robe* Abstract We document that, starting in the Fall of 2008, the benchmark West Texas Intermediate (WTI) crude oil has periodically traded at unheard of discounts to the corresponding Brent benchmark. We further document that this discount is not reflected in spreads between Brent and other benchmarks that are directly comparable to WTI. Drawing on extant models linking inventory conditions to the futures term structure, we test empirically several conjectures about how time and quality spreads (prompt vs. first-deferred WTI; prompt Brent vs. WTI)

257

Space Conditioning Standing Technical Committee Strategic Plan  

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

Space Conditioning Standing Technical Space Conditioning Standing Technical Committee Strategic Plan, v2011a Revised: January 2012 Committee Chair: 2011 Eric Martin Janet McIlvaine BA-PIRC Standing Technical Committee Strategic Plan Overview Standing Technical Committees (STCs) focus on resolving key technical action items required to meet Building America performance goals. STC chairs lead each committees' activities in addressing specific research challenges, gaps in understanding, and new research opportunities. Committees include experts from the Building America research teams, DOE, national laboratories, and outside organizations that possess specialized knowledge or heightened interest in the topics being addressed. Committee chairs can create sub-committees on an as-needed basis to address targeted research needs.

258

Casimir Pistons with General Boundary Conditions  

E-Print Network [OSTI]

In this work we analyze the Casimir energy and force for a scalar field endowed with general self-adjoint boundary conditions propagating in a higher dimensional piston configuration. The piston is constructed as a direct product $I\\times N$, with $I=[0,L]\\subset\\mathbb{R}$ and $N$ a smooth, compact Riemannian manifold with or without boundary. The study of the Casimir energy and force for this configuration is performed by employing the spectral zeta function regularization technique. The obtained analytic results depend explicitly on the spectral zeta function associated with the manifold $N$ and the parameters describing the general boundary conditions imposed. These results are then specialized to the case in which the manifold $N$ is a $d$-dimensional sphere.

Guglielmo Fucci

2014-10-16T23:59:59.000Z

259

Two Baryons with Twisted Boundary Conditions  

SciTech Connect (OSTI)

The quantization condition for two particle systems with arbitrary number of two-body open coupled-channels, spin and masses in a finite cubic volume is presented. The condition presented is in agreement with all previous studies of two-body systems in a finite volume. The result is fully relativistic and holds for all momenta below inelastic thresholds and is exact up to exponential volume corrections that are governed by m{sub {pi}} L, where m{sub {pi}} is the pion mass and L is the spatial extent of my box. Its implication for the studies of coupled-channel baryon-baryon systems is discussed, and the necessary tools for implementing the formalism are review.

Briceno, Raul [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Davoudi, Zohreh [Univ. of Washington, Seattle, WA (United States) and Institute for Nuclear Theory, Seattle, WA (United States); Luu, Thomas [Lawrence Livermore National Laboratory, Livermore, CA (United States); Savage, Martin [Univ. of Washington, Seattle, WA (United States) and Institute for Nuclear Theory, Seattle, WA (United States)

2014-04-01T23:59:59.000Z

260

Electrical condition monitoring method for polymers  

DOE Patents [OSTI]

An electrical condition monitoring method utilizes measurement of electrical resistivity of an age sensor made of a conductive matrix or composite disposed in a polymeric structure such as an electrical cable. The conductive matrix comprises a base polymer and conductive filler. The method includes communicating the resistivity to a measuring instrument and correlating resistivity of the conductive matrix of the polymeric structure with resistivity of an accelerated-aged conductive composite.

Watkins, Jr., Kenneth S. (Dahlonega, GA); Morris, Shelby J. (Hampton, VA); Masakowski, Daniel D. (Worcester, MA); Wong, Ching Ping (Duluth, GA); Luo, Shijian (Boise, ID)

2008-08-19T23:59:59.000Z

Note: This page contains sample records for the topic "worst-case conditions occurring" 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

Re-Entry Condition for Ferromagnetic Superconductors  

E-Print Network [OSTI]

PHYSICAL REVIE% 8 I JANUARY 1984 Re-entry condition for ferromagnetic superconductors C. G. Kuper, M. Revzen, and A. Ron, Department of Physics, Technion-Israel Institute of Technology, Haifa 32000, Israel C.-R. Hu, Department of Physics, Texas... 3 d'c M University, College Station, Texas 77843 (Received 10 June 1982; revised manuscript received 27 December 1982) In the phenomenological theory of re-entrant superconductors, the ratio ( of the magnetic to supercon- ducting free...

KUPER, CG; REVZEN, M.; RON, A.; Hu, Chia-Ren.

1984-01-01T23:59:59.000Z

262

Coherence condition for resonant neutrino oscillation  

Science Journals Connector (OSTI)

We study the coherence condition for a neutrino to keep coherence between the effective mass eigenstates in the presence of matter and examine whether or not resonant neutrino oscillation (RNO) happens in the cases of solar and SN 1987A neutrinos. As a result, it becomes evident that RNO is possible in the solar-neutrino case but impossible in the SN 1987A neutrino case.

Hajime Anada and Haruhiko Nishimura

1990-04-15T23:59:59.000Z

263

Conditions for supersonic bent Marshak waves  

E-Print Network [OSTI]

Supersonic radiation diffusion approximation is a useful way to study the radiation transportation. Considering the bent Marshak wave theory in 2-dimensions, and an invariable source temperature, we get the supersonic radiation diffusion conditions which are about the Mach number $M>8(1+\\sqrt{\\ep})/3$, and the optical depth $\\tau>1$. A large Mach number requires a high temperature, while a large optical depth requires a low temperature. Only when the source temperature is in a proper region these conditions can be satisfied. Assuming the material opacity and the specific internal energy depend on the temperature and the density as a form of power law, for a given density, these conditions correspond to a region about source temperature and the length of the sample. This supersonic diffusion region involves both lower and upper limit of source temperature, while that in 1-dimension only gives a lower limit. Taking $\\rm SiO_2$ and the Au for example, we show the supersonic region numerically.

Xu, Qiang; Li, Jing; Dan, Jia-kun; Wang, Kun-lun; Zhou, Shao-tong

2014-01-01T23:59:59.000Z

264

Magnetic charge and the charge quantization condition  

Science Journals Connector (OSTI)

Two viewpoints concerning magnetic charge are distinguished: that of Dirac, which is unsymmetrical, and the symmetrical one, which embodies invariance under charge rotation. It is pointed out that the latter is not in conflict with the empirical asymmetry between electric and magnetic charge. The discussion is based on an action principle that uses field strengths and the vector potential A as independent variables; a second vector potential B is defined nonlocally in terms of the field strengths. This nonlocality is described by an arbitrary vector function f?(y), subject only to the restriction ??f?(y)=?(y) and the additional requirement of oddness, in the symmetrical formulation. The charge quantization conditions for a pair of idealized charges, a and b, are inferred by examining the dependence of the action W on the choice of the arbitrary mathematical function f, and requiring the uniqueness of exp [iW]. For the unsymmetrical viewpoint the half-integer condition of Dirac is obtained, eagb4?=12n, while the symmetrical formulation requires the integer condition (eagb-ebga)4?=n. The Dirac injunction, "a string must never pass through a charged particle," is criticized as unnecessarily restrictive, owing to its origin in a classical action context. As simplified by a restriction to small momentum transfers, permitting the neglect of form-factor and vacuum-polarization effects, the dynamics of a realistic system of two spin- ½ dyons is shown to involve the same interaction structure used in the idealized discussion.

Julian Schwinger

1975-11-15T23:59:59.000Z

265

WASTE CONDITIONING FOR TANK HEEL TRANSFER  

SciTech Connect (OSTI)

This report summarizes the research carried out at Florida International University's Hemispheric Center for Environmental Technology (FIU-HCET) for the fiscal year 1998 (FY98) under the Tank Focus Area (TFA) project ''Waste Conditioning for Tank Slurry Transfer.'' The objective of this project is to determine the effect of chemical and physical properties on the waste conditioning process and transfer. The focus of this research consisted in building a waste conditioning experimental facility to test different slurry simulants under different conditions, and analyzing their chemical and physical properties. This investigation would provide experimental data and analysis results that can make the tank waste conditioning process more efficient, improve the transfer system, and influence future modifications to the waste conditioning and transfer system. A waste conditioning experimental facility was built in order to test slurry simulants. The facility consists of a slurry vessel with several accessories for parameter control and sampling. The vessel also has a lid system with a shaft-mounted propeller connected to an air motor. In addition, a circulation system is connected to the slurry vessel for simulant cooling and heating. Experimental data collection and analysis of the chemical and physical properties of the tank slurry simulants has been emphasized. For this, one waste slurry simulant (Fernald) was developed, and another two simulants (SRS and Hanford) obtained from DOE sites were used. These simulants, composed of water, soluble metal salts, and insoluble solid particles, were used to represent the actual radioactive waste slurries from different DOE sites. The simulants' chemical and physical properties analyzed include density, viscosity, pH, settling rate, and volubility. These analyses were done to samples obtained from different experiments performed at room temperature but different mixing time and strength. The experimental results indicate that the viscosity of the slurries follow the Bingham plastic model, especially when the solids concentration is increased. At low concentrations slurries may behave as Newtonian fluids. The three simulants follow a similar settling rate behavior. This behavior can be explained as a combination of one or more decreasing exponential curves. This means that the particle settling rate of the simulants decreases exponentially as time increases. The pH range for the three simulants was from 8 to 13 at all concentrations. The SRS simulant showed the highest pH, around 12; the other two simulants, Hanford and Fernald, had about the same pH range, from 3 to 9. When comparing volubility of the three simulants at the same concentration, SRS simulant showed higher volubility, followed by the Hanford simulant and the Fernald simulant, in that order. Further work is scheduled for next year (FY99) in this project, when other parameters like simulants particle size distribution, particle shape, and crystallization behavior will be studied. The same tests performed this period also will be performed at different temperatures for data comparison.

M.A. Ebadian, Ph.D.

1999-01-01T23:59:59.000Z

266

Uranium redistribution under oxidizing conditions in Oklo natural reactor zone 2, Gabon  

SciTech Connect (OSTI)

This mineralogical study was completed to elucidate the relationships between uranium distribution and alteration products of the host rock of natural reactor zone clays just below the reactor core. Uraninite is preserved without any alteration in the reactor core. Uranium minerals are found to be present in the fractures in the reactor zone clays associated with iron-mineral veins, galena and Ti-bearing minerals. Uranium, for which the phases could not be identified, occurs in iron-mineral veins and the iron-mineral rim of pyrite grains in the reactor zone clays. Uranium is not associated with granular iron minerals occurring in the illite matrix of the reactor zone clays. The degree of crystallinity and uranium content of the three iron-bearing alteration products suggest that they formed under different conditions; the granular iron minerals, under alteration conditions where uranium was not mobilized while the iron-mineral veins and the iron-mineral rim of pyrite, under conditions in which uranium is mobilized after the formation of the granular iron minerals.

Isobe, H.; Ohnuki, T. [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan); Murakami, T. [Ehime Univ., Matsuyama, Ehime (Japan); Gauthier-Lafaye, F. [CNRS, Strasbourg (France). Centre de Geochemie de la Surface

1995-12-31T23:59:59.000Z

267

Soot formation modelling of n-heptane sprays under diesel engine conditions using the Conditional Moment Closure  

E-Print Network [OSTI]

1 Soot formation modelling of n-heptane sprays under diesel engine conditions using the Conditional-volume vessel under diesel engine conditions under different ambient densities (14.8 and 30 kg/m3 ) and ambient that the conditional moment closure approach is a promising framework for soot modelling under Diesel engine conditions

Daraio, Chiara

268

Innovative Systems for Solar Air Conditioning of Buildings  

E-Print Network [OSTI]

Solar air conditioning is an attractive technology to achieve comfortable room conditions, especially in hot and sunny climates. In particular air conditioning systems based on sorption technologies offer several advantages as they can be designed...

Kessling, W.; Peltzer, M.

2004-01-01T23:59:59.000Z

269

Analysis of Air Conditioning Effectiveness vs. Outdoor Conditions: Traditional Bins or Joint Frequency Bins?  

E-Print Network [OSTI]

There are a number of methods used to estimate the effectiveness of air conditioning equipment in handling loads. Full hourly computer simulations are probably the most accurate, but lack flexibility and are more cumbersome to use than more compact...

Cohen, B. M.

1998-01-01T23:59:59.000Z

270

CONDITIONS FOR SUCCESSFUL HELIUM DETONATIONS IN ASTROPHYSICAL ENVIRONMENTS  

SciTech Connect (OSTI)

Several models for Type Ia-like supernova events rely on the production of a self-sustained detonation powered by nuclear reactions. In the absence of hydrogen, the fuel that powers these detonations typically consists of either pure helium (He) or a mixture of carbon and oxygen (C/O). Studies that systematically determine the conditions required to initiate detonations in C/O material exist, but until now no analogous investigation of He matter has been conducted. We perform one-dimensional reactive hydrodynamical simulations at a variety of initial density and temperature combinations and find critical length scales for the initiation of He detonations that range between 1 and 10{sup 10} cm. A simple estimate of the length scales over which the total consumption of fuel will occur for steady-state detonations is provided by the Chapman-Jouguet (CJ) formalism. Our initiation lengths are consistently smaller than the corresponding CJ length scales by a factor of {approx}100, providing opportunities for thermonuclear explosions in a wider range of low-mass white dwarfs (WDs) than previously thought possible. We find that virialized WDs with as little mass as 0.24 M{sub Sun} can be detonated, and that even less massive WDs can be detonated if a sizable fraction of their mass is raised to a higher adiabat. That the initiation length is exceeded by the CJ length implies that certain systems may not reach nuclear statistical equilibrium within the time it takes a detonation to traverse the object. In support of this hypothesis, we demonstrate that incomplete burning will occur in the majority of He WD detonations and that {sup 40}Ca, {sup 44}Ti, or {sup 48}Cr, rather than {sup 56}Ni, is the predominant burning product for many of these events. We anticipate that a measure of the quantity of the intermediate-mass elements and {sup 56}Ni produced in a helium-rich thermonuclear explosion can potentially be used to constrain the nature of the progenitor system.

Holcomb, Cole; Guillochon, James; De Colle, Fabio; Ramirez-Ruiz, Enrico [TASC, Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064 (United States)

2013-07-01T23:59:59.000Z

271

Nonparametric Tests of Moment Condition Stability  

E-Print Network [OSTI]

are interested in whether or not ? is constant. To reformulate it into an inference problem of moment stability, let zt = (yt , x#4;t )#4; and m(zt ,?) = ( yt ? x#4;t ? ) xt . Then, under the null hypothesis that ? is constant, the moment condition (2.1) holds... for all t . Otherwise, for any vector ? of constants, E(m(zt ,?)) #5;= 0 for some nonnegligible fraction of the sample. Most studies in the literature consider the case where the distribution of xt is assumed to be stationary. Furthermore, we may allow...

Juhl, Ted P.; Xiao, Zhijie

2013-02-01T23:59:59.000Z

272

The JANA Calibrations and Conditions Database API  

SciTech Connect (OSTI)

Calibrations and conditions databases can be accessed from within the JANA Event Processing framework through the API defined in its JCalibration base class. The API is designed to support everything from databases, to web services to flat files for the backend. A Web Service backend using the gSOAP toolkit has been implemented which is particularly interesting since it addresses many modern cybersecurity issues including support for SSL. The API allows constants to be retrieved through a single line of C++ code with most of the context, including the transport mechanism, being implied by the run currently being analyzed and the environment relieving developers from implementing such details.

David Lawrence

2010-07-01T23:59:59.000Z

273

RADIONUCLIDE MIGRATION IN TUFF UNDER UNSATURATED CONDITIONS  

SciTech Connect (OSTI)

An understanding of the transport of radionuclides through unsaturated and saturated tuffaceous material is essential in assessing the safety of the proposed high-level waste repository at Yucca Mountain. Migration experiments with conservative and chemically reactive non-radioactive tracers have been performed at the Busted Butte Unsaturated Zone underground facility, SE of Yucca Mountain, and with radionuclides in columns of crushed tuff at the Los Alamos National Laboratory. In this paper, complementary radionuclide migration experiments, performed under unsaturated conditions in a small block of tuff excavated from Busted Butte, are described.

T.T. Vandergraaf

2000-10-25T23:59:59.000Z

274

Energy Department Conditionally Authorizes Oregon LNG to Export...  

Energy Savers [EERE]

Energy Department Conditionally Authorizes Oregon LNG to Export Liquefied Natural Gas Energy Department Conditionally Authorizes Oregon LNG to Export Liquefied Natural Gas July 31,...

275

The Constant Rank Condition and Second Order Constraint ...  

E-Print Network [OSTI]

Nov 13, 2009 ... The Constant Rank condition for feasible points of nonlinear ... stant Rank condition is, in addition, a second order constraint qualification.

2009-11-13T23:59:59.000Z

276

Impact of Infiltration and Ventilation on Measured Space Conditioning...  

Energy Savers [EERE]

to provide needed ventilation under drier summer and winter conditions and reduce the air introduced during periods of peak space conditioning. For more information, see the...

277

Department of Energy Offers $2.1 Billion Conditional Commitment...  

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

.1 Billion Conditional Commitment Loan Guarantee to Support California Solar Thermal Power Plant Department of Energy Offers 2.1 Billion Conditional Commitment Loan Guarantee to...

278

Offshore Resource Assessment and Design Conditions Public Meeting...  

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

Offshore Resource Assessment and Design Conditions Public Meeting Summary Report Offshore Resource Assessment and Design Conditions Public Meeting Summary Report Report from DOE's...

279

DOE Announces Webinars on High Performance Space Conditioning...  

Office of Environmental Management (EM)

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

280

SciTech Connect: optimal initial conditions for coupling ice...  

Office of Scientific and Technical Information (OSTI)

Conference: optimal initial conditions for coupling ice sheet models to earth system models Citation Details In-Document Search Title: optimal initial conditions for coupling ice...

Note: This page contains sample records for the topic "worst-case conditions occurring" 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

Energy Department Offers Conditional Commitment to Support Nevada...  

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

Offers Conditional Commitment to Support Nevada Geothermal Development with Recovery Act Funds Energy Department Offers Conditional Commitment to Support Nevada Geothermal...

282

Department of Energy Security Condition (SECON) Level | Department...  

Energy Savers [EERE]

Department of Energy Security Condition (SECON) Level Department of Energy Security Condition (SECON) Level The information on this page is provided as a service by EHSS. EHSS does...

283

CFD Combustion Modeling with Conditional Moment Closure using...  

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

Combustion Modeling with Conditional Moment Closure using Tabulated Chemistry CFD Combustion Modeling with Conditional Moment Closure using Tabulated Chemistry A method is...

284

On Second Order Optimality Conditions in Nonlinear Optimization  

E-Print Network [OSTI]

Aug 15, 2014 ... Abstract: In this work we present new weak conditions that ensure the validity of necessary second order optimality conditions (SOC) for ...

Roberto Andreani

2014-08-15T23:59:59.000Z

285

Modelling of Viscoplastic Behaviour of IN718 Under Hot Forging Conditions  

SciTech Connect (OSTI)

The mechanical properties of IN718 are directly related to microstructure such as grain size and the hardening mechanisms, which are effective during thermomechanical processing and subsequent heat treatment. In this study a set of unified viscoplastic constitutive equations were determined for IN718 from experimental data of hot forging conditions. Techniques were developed to analyse the reliability and consistency of the experimental data derived from different previous publications. In addition to viscoplastic flow of the material, the determined material model can be used to predict the evolution of dislocations, recrystallisation and grain size occurring during thermomechanical processing.

Lin, Y. P.; Lin, J.; Dean, T. A. [Department of Mechanical and Manufacturing Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT (United Kingdom); Brown, P. D. [Rolls-Royce plc, PO Box31, Derby DE24 8BJ (United Kingdom)

2007-04-07T23:59:59.000Z

286

Fireside corrosion degradation of ferritic alloys at 600 °C in oxy-fired conditions  

Science Journals Connector (OSTI)

Abstract This paper reports the results of a study carried out to investigate the effects of simulated coal/biomass combustion conditions on the fireside corrosion. The 1000 h deposit recoat exposure (5 × 200 h cycles) was carried out at 600 °C. In these tests ferritic alloys were used 15Mo3, T22, T23 and T91. Kinetics data were generated for the alloys exposed using both traditional weight change methods and metal loss measurements. The highest rate of corrosion based on EDX results occurred under D1 deposit where provoke mainly by the formation of alkali iron tri-sulphate phase.

T. Dudziak; T. Hussain; N.J. Simms; A.U. Syed; J.E. Oakey

2014-01-01T23:59:59.000Z

287

Monte Carlo Simulations of the Dissolution of Borosilicate Glasses in Near-Equilibrium Conditions  

SciTech Connect (OSTI)

Monte Carlo simulations were performed to investigate the mechanisms of glass dissolution as equilibrium conditions are approached in both static and flow-through conditions. The glasses studied are borosilicate glasses in the compositional range (80 x)% SiO2 (10 + x / 2)% B2O3 (10 + x / 2)% Na2O, where 5 < x < 30%. In static conditions, dissolution/condensation reactions lead to the formation, for all compositions studied, of a blocking layer composed of polymerized Si sites with principally 4 connections to nearest Si sites. This layer forms atop the altered glass layer and shows similar composition and density for all glass compositions considered. In flow-through conditions, three main dissolution regimes are observed: at high flow rates, the dissolving glass exhibits a thin alteration layer and congruent dissolution; at low flow rates, a blocking layer is formed as in static conditions but the simulations show that water can occasionally break through the blocking layer causing the corrosion process to resume; and, at intermediate flow rates, the glasses dissolve incongruently with an increasingly deepening altered layer. The simulation results suggest that, in geological disposal environments, small perturbations or slow flows could be enough to prevent the formation of a permanent blocking layer. Finally, a comparison between predictions of the linear rate law and the Monte Carlo simulation results indicates that, in flow-through conditions, the linear rate law is applicable at high flow rates and deviations from the linear rate law occur under low flow rates (e.g., at near-saturated conditions with respect to amorphous silica). This effect is associated with the complex dynamics of Si dissolution/condensation processes at the glass water interface.

Kerisit, Sebastien [Pacific Northwest National Laboratory (PNNL); Pierce, Eric M [ORNL

2012-01-01T23:59:59.000Z

288

Deuterium Retention in NSTX with Lithium Conditioning  

SciTech Connect (OSTI)

High (approximate to 90%) deuterium retention was observed in NSTX gas balance measurements both with- and without lithiumization of the carbon plasma-facing components. The gas retained in ohmic discharges was measured by comparing the vessel pressure rise after a discharge to that of a gas-only pulse with the pumping valves closed. For neutral beam heated discharges the gas input and gas pumped by the NB cryopanels were tracked. The discharges were followed by outgassing of deuterium that reduced the retention. The relationship between retention and surface chemistry was explored with a new plasma-material interface probe connected to an in vacuo surface science station that exposed four material samples to the plasma. XPS and TDS analysis demonstrated that binding of D atoms in graphite is fundamentally changed by lithium - in particular atoms are weakly bonded in regions near lithium atoms bound to either oxygen or the carbon matrix. This is in contrast to the strong ionic bonding that occurs between D and pure Li. (C) 2010 Elsevier B.V. All rights reserved.

Skinner, C. H. [Princeton Plasma Physics Laboratory (PPPL); Allain, J. P. [Purdue University; Blanchard, W. [Princeton Plasma Physics Laboratory (PPPL); Kugel, H. W. [Princeton Plasma Physics Laboratory (PPPL); Maingi, Rajesh [ORNL; Roquemore, L. [Princeton Plasma Physics Laboratory (PPPL); Soukhanovskii, V. A. [Lawrence Livermore National Laboratory (LLNL); Taylor, C. N. [Purdue University

2011-01-01T23:59:59.000Z

289

Boundary conditions in the Aharonov-Bohm scattering of Dirac particles and the effect of Coulomb interaction  

Science Journals Connector (OSTI)

We consider the question of the physically correct choice of the boundary conditions, and therefore of the dynamics, for the scattering of spin-½ particles by a thread of magnetic flux. It is shown that even when the problem is approached by first considering a source of finite radius R, the resulting dynamics is a consequence of how much penetration of the wave function inside the tube one chooses to allow. (The indeterminacy in the boundary condition occurs for one value of the total angular momentum for a given value of the flux.) If a Coulomb interaction of the particle with the sources is introduced in the problem, the above-mentioned indeterminacy is enlarged. We show that for a given value of the flux there are now at least two values of the angular momentum n for which the indeterminacy occurs.

F. A. B. Coutinho and J. Fernando Perez

1993-07-15T23:59:59.000Z

290

Microsoft Word - Berger Radiological Conditions.doc  

Office of Legacy Management (LM)

Dec. Dec. 2, 2009 1 Summary of Information Regarding Radiological Conditions of NFSS Vicinity Properties J. D. Berger, CHP DeNuke Contracting Services, Inc. Oak Ridge, TN The following is a summary of the information obtained from reviews of radiological survey reports, prepared by ORAU in support of the DOE Formerly Utilized Sites Remedial Action Program. These reports were obtained for review from the IVEA Program at ORAU/ORISE. A list of the reports, reviewed for this summary, is included at the end of this report. Hard copies of reports for ORAU survey activities of NFSS and NFSS Vicinity Properties are available at the South Campus Site of ORAU (these reports are not available in electronic form). In addition, there are 12 - 14 boxes of hard-copy supporting data and information, pertinent to the surveys. I inspected the contents of Box 54. That box contained records for NFSS Vicinity

291

Initial conditions of radiative shock experiments  

SciTech Connect (OSTI)

We performed experiments at the Omega Laser Facility to characterize the initial, laser-driven state of a radiative shock experiment. These experiments aimed to measure the shock breakout time from a thin, laser-irradiated Be disk. The data are then used to inform a range of valid model parameters, such as electron flux limiter and polytropic ?, used when simulating radiative shock experiments using radiation hydrodynamics codes. The characterization experiment and the radiative shock experiment use a laser irradiance of ?7 × 10{sup 14} W cm{sup ?2} to launch a shock in the Be disk. A velocity interferometer and a streaked optical pyrometer were used to infer the amount of time for the shock to move through the Be disk. The experimental results were compared with simulation results from the Hyades code, which can be used to model the initial conditions of a radiative shock system using the CRASH code.

Kuranz, C. C.; Drake, R. P.; Krauland, C. M.; Marion, D. C.; Grosskopf, M. J.; Rutter, E.; Torralva, B.; Holloway, J. P. [Department of Atmospheric, Oceanic and Space Science, University of Michigan, Center for Radiative Shock Hydrodynamics, 2455 Hayward Dr., Ann Arbor, Michigan 48109 (United States)] [Department of Atmospheric, Oceanic and Space Science, University of Michigan, Center for Radiative Shock Hydrodynamics, 2455 Hayward Dr., Ann Arbor, Michigan 48109 (United States); Bingham, D.; Goh, J. [Department of Statistics and Actuarial Science, Simon Fraser University, Burnaby, BC, Canada V5A 1S6 (Canada)] [Department of Statistics and Actuarial Science, Simon Fraser University, Burnaby, BC, Canada V5A 1S6 (Canada); Boehly, T. R.; Sorce, A. T. [Laboratory for Laser Energetics, University of Rochester, New York 14623 (United States)] [Laboratory for Laser Energetics, University of Rochester, New York 14623 (United States)

2013-05-15T23:59:59.000Z

292

Wormholes minimally violating the null energy condition  

E-Print Network [OSTI]

We consider novel wormhole solutions supported by a matter content that minimally violates the null energy condition. More specifically, we consider an equation of state in which the sum of the energy density and radial pressure is proportional to a constant with a value smaller than that of the inverse area characterising the system, i.e., the area of the wormhole mouth. This approach is motivated by a recently proposed cosmological event, denoted "the little sibling of the big rip", where the Hubble rate and the scale factor blow up but the cosmic derivative of the Hubble rate does not [1]. By using the cut-and-paste approach, we match interior spherically symmetric wormhole solutions to an exterior Schwarzschild geometry, and analyze the stability of the thin-shell to linearized spherically symmetric perturbations around static solutions, by choosing suitable properties for the exotic material residing on the junction interface radius. Furthermore, we also consider an inhomogeneous generalisation of the eq...

Bouhmadi-Lopez, Mariam; Martin-Moruno, Prado

2014-01-01T23:59:59.000Z

293

Matter Under Extreme Conditions: The Early Years  

E-Print Network [OSTI]

Extreme conditions in natural flows are examined, starting with a turbulent big bang. A hydro-gravitational-dynamics cosmology model is adopted. Planck-Kerr turbulence instability causes Planck-particle turbulent combustion. Inertial-vortex forces induce a non-turbulent kinetic energy cascade to Planck-Kolmogorov scales where vorticity is produced, overcoming 10^113 Pa Planck-Fortov pressures. The spinning, expanding fireball has a slight deficit of Planck antiparticles. Space and mass-energy powered by gluon viscous stresses expand exponentially at speeds >10^25 c. Turbulent temperature and spin fluctuations fossilize at scales larger than ct, where c is light speed and t is time. Because â??dark-energyâ? antigravity forces vanish when inflation ceases, and because turbulence produces entropy, the universe is closed and will collapse and rebound. Density and spin fossils of big bang turbulent mixing trigger structure formation in the plasma epoch. Fragmenting protosuperclustervoids and protoclustervoi...

Keeler, R Norris

2010-01-01T23:59:59.000Z

294

Memory of Initial Conditions in Gravitational Clustering  

E-Print Network [OSTI]

We study the nonlinear propagator, a key ingredient in renormalized perturbation theory (RPT) that allows a well-controlled extension of perturbation theory into the nonlinear regime. We show that it can be thought as measuring the memory of density and velocity fields to their initial conditions. This provides a clean definition of the validity of linear theory, which is shown to be much more restricted than usually recognized in the literature. We calculate the nonlinear propagator in RPT and compare to measurements in numerical simulations, showing remarkable agreement well into the nonlinear regime. We also show that N-body simulations require a rather large volume to recover the correct propagator, due to the missing large-scale modes. Our results for the nonlinear propagator provide an essential element to compute the nonlinear power spectrum in RPT.

M. Crocce; R. Scoccimarro

2005-09-15T23:59:59.000Z

295

Seawater Air Conditioning for Downtown Engineering Project Manager  

E-Print Network [OSTI]

Seawater Air Conditioning for Downtown Honolulu Scott Higa Engineering Project Manager Honolulu Seawater Air Conditioning, LLC Abstract As a tropical island state, Hawaii has a year-round demand for air conditioning. Conventional air conditioning systems are energy intensive and represent close to 50 percent

Frandsen, Jannette B.

296

Characterization of Petroleum Refinery Lp Results Under Conditions of Degeneracy.  

E-Print Network [OSTI]

??The phenomenon of degeneracy inevitably occurs in most large LP models. An LP could be primal degenerate, dual degenerate, or both primal and dual degenerate.… (more)

Arjunan, Jeyarathan

2010-01-01T23:59:59.000Z

297

Flexible facility design with stochastic data in multiple periods  

E-Print Network [OSTI]

potential to perform poorly for the worst case scenarios. Conversely, the new two-phase heuristic attempts to improve the worst case scenarios while maintaining good expected demand performance. In a situation where there is potential to encounter costly...

Prigge, Jami G.

2012-06-07T23:59:59.000Z

298

Shale Rocks as Nuclear Waste Repositories: Hydrothermal Reactions with Glass, Ceramic and Spent Fuel Waste Forms  

Science Journals Connector (OSTI)

The objectives of various contributions from this laboratory have been to simulate “worst case” situations, given a proposed choice of waste form, repository rock, and waste loading/waste age. The “worst case”...

W. Phelps Freeborn; Michael Zolensky…

1980-01-01T23:59:59.000Z

299

Uptake and utilization of dissolved glycine by the polychaete Capitella capitata (Fabricius) under aerobic and anaerobic conditions  

E-Print Network [OSTI]

candida. They stated that their data indicate a net loss of amino acids, not net uptake. They interpreted data based on use of radioactively labeled compounds as representing the occurence of exchange dif- fusion. In other words, labeled substrate... conditions by Owenia fusiformis and found most radioactivity appearing in amino acids. Jgrgensen and Kristensen (1980b) reported reduced 10 but still significant amino acid uptake rates during an- aerobiosis in three species of Nereis. There was a 30...

Sanders, Duane Desmond

1981-01-01T23:59:59.000Z

300

Object detectability at increased ambient lighting conditions  

SciTech Connect (OSTI)

Under typical dark conditions encountered in diagnostic reading rooms, a reader's pupils will contract and dilate as the visual focus intermittently shifts between the high luminance display and the darker background wall, resulting in increased visual fatigue and the degradation of diagnostic performance. A controlled increase of ambient lighting may, however, reduce the severity of these pupillary adjustments by minimizing the difference between the luminance level to which the eyes adapt while viewing an image (L{sub adp}) and the luminance level of diffusely reflected light from the area surrounding the display (L{sub s}). Although ambient lighting in reading rooms has conventionally been kept at a minimum to maintain the perceived contrast of film images, proper Digital Imaging and Communications in Medicine (DICOM) calibration of modern medical-grade liquid crystal displays can compensate for minor lighting increases with very little loss of image contrast. This paper describes two psychophysical studies developed to evaluate and refine optimum reading room ambient lighting conditions through the use of observational tasks intended to simulate real clinical practices. The first study utilized the biologic contrast response of the human visual system to determine a range of representative L{sub adp} values for typical medical images. Readers identified low contrast horizontal objects in circular foregrounds of uniform luminance (5, 12, 20, and 30 cd/m{sup 2}) embedded within digitized mammograms. The second study examined the effect of increased ambient lighting on the detection of subtle objects embedded in circular foregrounds of uniform luminance (5, 12, and 35 cd/m{sup 2}) centered within a constant background of 12 cd/m{sup 2} luminance. The images were displayed under a dark room condition (1 lux) and an increased ambient lighting level (50 lux) such that the luminance level of the diffusely reflected light from the background wall was approximately equal to the image L{sub adp} value of 12 cd/m{sup 2}. Results from the first study demonstrated that observer true positive and false positive detection rates and true positive detection times were considerably better while viewing foregrounds at 12 and 20 cd/m{sup 2} than at the other foreground luminance levels. Results from the second study revealed that under increased room illuminance, the average true positive detection rate improved a statistically significant amount from 39.3% to 55.6% at 5 cd/m{sup 2} foreground luminance. Additionally, the true positive rate increased from 46.4% to 56.6% at 35 cd/m{sup 2} foreground luminance, and decreased slightly from 90.2% to 87.5% at 12 cd/m{sup 2} foreground luminance. False positive rates at all foreground luminance levels remained approximately constant with increased ambient lighting. Furthermore, under increased room illuminance, true positive detection times declined at every foreground luminance level, with the most considerable decrease (approximately 500 ms) at the 5 cd/m{sup 2} foreground luminance. The first study suggests that L{sub adp} of typical mammograms lies between 12 and 20 cd/m{sup 2}, leading to an optimum reading room illuminance of approximately 50-80 lux. Findings from the second study provide psychophysical evidence that ambient lighting may be increased to a level within this range, potentially improving radiologist comfort, without deleterious effects on diagnostic performance.

Pollard, Benjamin J.; Chawla, Amarpreet S.; Delong, David M.; Hashimoto, Noriyuki; Samei, Ehsan [Duke Advanced Imaging Laboratories, Department of Radiology, Medical Physics Graduate Program, Duke University, Durham, North Carolina 27705 (United States); Duke Advanced Imaging Laboratories, Departments of Radiology and Biomedical Engineering, Duke University, Durham, North Carolina 27705 (United States); Duke Advanced Imaging Laboratories, Department of Biostatistics and Bioinformatics, Duke University, Durham, North Carolina 27705 (United States); Eizo Nanao Technologies, Inc., Cypress, California 90630 (United States); Duke Advanced Imaging Laboratories, Departments of Radiology, Physics, and Biomedical Engineering, Medical Physics Graduate Program, Duke University Durham, North Carolina 27705 (United States)

2008-06-15T23:59:59.000Z

Note: This page contains sample records for the topic "worst-case conditions occurring" 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

Pressure–heat release measurements during start-up conditions in a pulse combustor  

Science Journals Connector (OSTI)

An experimental study focusing on the temporal evolution of the global OH heat release (q?) and dynamic pressure (p?) from ignition to limit cycle conditions in an aerovalved pulse combustor has been carried out. The motivation of the work was to investigate how the thermo-acoustic relationships evolve, as very little is understood regarding how pressure and heat release couplings develop prior to establishing limit cycle conditions. The start-up experiments demonstrated that the total start-up sequences occurred within 100 ms and can be subdivided into three regimes: (i) ignition and decay; (ii) instability growth; and (iii) onset of limit cycle operation. The main results showed that upon ignition the high amplitude impulse pressure wave corresponded to the natural frequency of the pulse combustor at ambient gas temperature and was verified by an acoustic model. The pressure field over the growth period exhibited two main trends, either steady amplitude growth or a short delay interval followed by steady amplitude growth to limit cycle conditions. Overall, no reproducibility in frequency or phase during the growth period was observed pointing to the influence of strong non-linear interactions. When operating under limit cycle conditions, the heat release and pressure oscillations were in phase, possessed high levels of coherence, and exhibited narrow band frequency response at the operating frequency and several harmonics.

J.R. Dawson; V.M. Rodriguez-Martinez; A.J. Beale; T. O’Doherty

2005-01-01T23:59:59.000Z

302

Modeling and Control of Aggregated Air Conditioning Loads Under Realistic Conditions  

E-Print Network [OSTI]

strategy is designed to track a desired demand curve and to ensure a stable and smooth response. I for a large fraction of electric demand. HVAC (Heating, Ventilation and air conditioning) systems and water heaters are examples of TCLs. They use local hysteresis control to maintain either air or water

Zhang, Wei

303

Conditions of Award Vice-Chancellor's Merit Scholarship UTS Scholarship Conditions of Award  

E-Print Network [OSTI]

load, and an Honours degree, if applicable. In all cases, the Scholarship continues only until, on the basis of a full-time study load (equivalent full-time student load of 48 credit points/academic year). 1;Conditions of Award ­ Vice-Chancellor's Merit Scholarship Note: where the Recipient does not follow

University of Technology, Sydney

304

Exploring jet-launching conditions for SFXTs  

E-Print Network [OSTI]

In the magneto-centrifugal mechanism for jet formation, accreting neutron stars are assumed to produce relativistic jets only if their surface magnetic field is weak enough ($B \\sim 10^8$ G). However, the most common manifestation of neutron stars are pulsars, whose magnetic field distribution peaks at $B \\sim 10^{12}$ G. If the neutron star magnetic field has at least this strength at birth, it must decay considerably before jets can be launched in binary systems. We study the magnetic field evolution of a neutron star that accretes matter from the wind of a high-mass stellar companion so that we can constrain the accretion rate and the impurities in the crust, which are necessary conditions for jet formation. We solved the induction equation for the diffusion and convection of the neutron star magnetic field confined to the crust, assuming spherical accretion in a simpliflied one-dimensional treatment. We incorporated state-of-the-art microphysics, including consistent thermal evolution profiles, and assume...

García, Federico; Romero, Gustavo E

2014-01-01T23:59:59.000Z

305

Modelling of Ion Cyclotron Wall Conditioning plasmas  

SciTech Connect (OSTI)

Ion Cyclotron Wall Conditioning (ICWC) is envisioned in ITER to clean the wall from impurities, to control the wall isotopic ratio and the hydrogen recycling in the presence of the toroidal magnetic field. Various experiments and modelling are advancing to consolidate this technique. In this contribution the modeling of ICWC is presented, which can be divided in two parts: plasma description and plasma wall interaction. Firstly a 0D plasma model, based on a set of energy and particle balance equations for Maxwellian Hydrogen and Helium species, is presented. The model takes into account elementary collision processes, coupled RF power, particle confinement, wall recycling, and active gas injection and pumping. The RF plasma production process is based mainly on electron collisional ionization. The dependency of the plasma parameters, the Hydrogen and Helium partial pressures and neutral or ionic fluxes on pressure and RF power are quantitatively in good agreement with those obtained experimentally on TORE SUPRA. Secondly an extension of the 0D model including the description of the wall interaction is presented and compared to TORE SUPRA multi-pulse ICWC discharges.

Douai, D.; Wauters, T.; Wuenderlich, D.; Bremond, S.; Lombard, G.; Mollard, P.; Pegourie, B. [CEA, IRFM, 13108 St Paul lez Durance (France); Lyssoivan, A. [LPP-ERM/KMS, 1000 Brussels (Belgium); Marchuk, O. [IEK-4, FZ Juelich, 52425 Juelich (Germany); Van Oost, G. [Ghent University, 9000 Ghent (Belgium)

2011-12-23T23:59:59.000Z

306

Alternative non-CFC mobile air conditioning  

SciTech Connect (OSTI)

Concern about the destruction of the global environment by chlorofluorocarbon (CFC) fluids has become an impetus in the search for alternative, non-CFC refrigerants and cooling methods for mobile air conditioning (MAC). While some alternative refrigerants have been identified, they are not considered a lasting solution because of their high global warming potential, which could result in their eventual phaseout. In view of this dilemma, environmentally acceptable alternative cooling methods have become important. This report, therefore, is aimed mainly at the study of alternative automotive cooling methodologies, although it briefly discusses the current status of alternative refrigerants. The alternative MACs can be divided into work-actuated and heat-actuated systems. Work-actuated systems include conventional MAC, reversed Brayton air cycle, rotary vane compressor air cycle, Stirling cycle, thermoelectric (TE) cooling, etc. Heat-actuated MACs include metal hydride cooling, adsorption cooling, ejector cooling, absorption cycle, etc. While we are better experienced with some work-actuated cycle systems, heat-actuated cycle systems have a high potential for energy savings with possible waste heat applications. In this study, each altemative cooling method is discussed for its advantages and its limits.

Mei, V.C.; Chen, F.C.; Kyle, D.M.

1992-09-01T23:59:59.000Z

307

Solvolytic liquefaction of wood under mild conditions  

SciTech Connect (OSTI)

Conversion of wood to liquid products requires cleavage of bonds which crosslink the wood structure. This study examines a low-severity wood solubilization process utilizing a solvent medium consisting of a small amount of sulfuric acid and a potentially wood-derivable alcohol. In one half hour of reaction time at 250/sup 0/C under 15 psia starting nitrogen pressure, over 95% of the wood (maf) was rendered acetone-soluble. The product is a soft, black, bitumen-like solid at room temperature but readily softens at 140/sup 0/C. Between 25 and 50% of the original wood oxygen, depending on alcohol used, was removed as water. Approximately 2 to 17% of the alcohols were retained in the product. Gel permeation chromatography showed that the product's median molecular weight is around 300. Based on experimental and literature results, a mechanism for wood solubilization is proposed. This involves protonation of the etheric oxygen atoms, leading to subsequent bond scission to form carbonium ions which are stabilized by solvent alkoxylation. At severe conditions, polymerization and condensation reactions result in acetone-insoluble materials.

Yu, S.M.

1982-04-01T23:59:59.000Z

308

Terms and Conditions | Y-12 National Security Complex  

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

Sales / Terms and Conditions Sales / Terms and Conditions Terms and Conditions Click a link below to review our Sales general terms and conditions and auction terms and conditions. General Terms and Conditions 1.1 DEFINITIONS The following terms shall have the meanings below: (a) Government means the United States of America and includes the U.S. Department of Energy (DOE) except as further defined in Condition 1.2(d). (b) Agent means B&W Y-12, acting under Contract No. DE-AC05-00OR22800 for DOE in selling the property. (c) Purchaser means the successful Bidder to whom award is made. 1.2 GENERAL SERVICES ADMINISTRATION (GSA) TERMS AND CONDITIONS This condition incorporates by reference certain provisions that apply as if they were set forth in their entirety. The following provisions are

309

Sustainability and Market Conditions:The Resource Efficiency paradox  

E-Print Network [OSTI]

organizational capabilities, market conditions and resource efficiencyefficiency practices, and then develop hypotheses on how organizationalefficiency practices should increase in downturn market conditions, such practices require complementary capabilities, strategies and organizational

Delmas, Magali; Pekovic, Sanja

2012-01-01T23:59:59.000Z

310

Lattice Boltzmann boundary conditions via singular forces: irregular expansion analysis  

E-Print Network [OSTI]

Lattice Boltzmann boundary conditions via singular forces: irregular expansion analysis. We benchmark the method on lattice Boltzmann flows past a rigid disk, comparing its numerical performances with standard boundary condition approaches. Key words: lattice Boltzmann method, boundary

311

Roswell International Air Center Airport (ROW) Pavement Condition and Analysis  

E-Print Network [OSTI]

Roswell International Air Center Airport (ROW) Pavement Condition and Analysis Submitted to: Jane M ................................................1. Conditions at Roswell International Air Center (ROW) 4 .................................Figure 1. Geographic Location of Roswell International Air Center (ROW) 4 ..............................Table 1

Cal, Mark P.

312

Ducts in Conditioned Space - Building America Top Innovation...  

Energy Savers [EERE]

moving ductwork into conditioned space in the hot-dry climate zone saved 8% to 15% on air-conditioning costs for homeowners. For this Top Innovation profile, Building America...

313

Energy Conservation of Air Conditioning Systems in Large Public Buildings  

E-Print Network [OSTI]

with the heating characteristics of the exterior -protected construction, the set value of the temperature of the air-conditioning, the lectotype of the Central air-conditioning system, the regulation and the modification of the transmission and distribution system...

Liu, P.; Li, D.

2006-01-01T23:59:59.000Z

314

Silver City Grant County Airport (SVC) Pavement Condition and Analysis  

E-Print Network [OSTI]

Silver City Grant County Airport (SVC) Pavement Condition and Analysis Submitted to: Jane M. Lucero ....................................1. Airport Conditions at Silver City Grant County Airport (SVC) 4 ..................................Figure 1. Geographic Location of Silver City Grant County Airport (SVC) 4 ......................Table 1

Cal, Mark P.

315

How not to Rényi generalize the Quantum Conditional Mutual Information  

E-Print Network [OSTI]

We study the relation between the Quantum Conditional Mutual Information and the quantum $\\alpha$-R\\'enyi divergences. We show how not to Renyi generalize the Quantum Conditional Mutual Information by considering the totally antisymmetric state.

Paul Erker

2014-04-14T23:59:59.000Z

316

Unusual Condition Mining for Risk Management of Hydroelectric Power Plants  

Science Journals Connector (OSTI)

Kyushu Electric Power Co.,Inc. collects different sensor data and weather information to maintain the safety of hydroelectric power plants while the plants are running. In this paper, we consider that the abnormal condition sign may be unusual condition. ...

Takashi Onoda; Norihiko Ito; Hironobu Yamasaki

2006-12-01T23:59:59.000Z

317

Weather Conditions of 1695?96 in European Russia  

Science Journals Connector (OSTI)

The Russian chronicles and the diaries of Czar Peter the Great were used to describe weather conditions of the late seventeenth century in European Russia. According to these written sources, a distinct deterioration of weather conditions took ...

Margarita Chernavskaya

1996-07-01T23:59:59.000Z

318

Fourier-Mukai transforms and stability conditions on abelian threefolds   

E-Print Network [OSTI]

Construction of Bridgeland stability conditions on a given Calabi-Yau threefold is an important problem and this thesis realizes the rst known examples of such stability conditions. More precisely, we construct a dense ...

Piyaratne, Hathurusinghege Dulip Bandara

2014-11-27T23:59:59.000Z

319

On Aerodynamic Optimization Under a Range of Operating Conditions  

E-Print Network [OSTI]

On Aerodynamic Optimization Under a Range of Operating Conditions David W. Zingg, and Samy Elias In aerodynamic design, good performance is generally required under a range of oper- ating conditions, including aerodynamic shape optimization.1­6 The designer specifies an objective, operating conditions, constraints

Zingg, David W.

320

STATE OF CALIFORNIA ICE STORAGE AIR CONDITIONING (ISAC) UNITS  

E-Print Network [OSTI]

cooling with the compressor). Yes No #12;STATE OF CALIFORNIA ICE STORAGE AIR CONDITIONING (ISAC) UNITS CECSTATE OF CALIFORNIA ICE STORAGE AIR CONDITIONING (ISAC) UNITS CEC-CF-6R-MECH-08 (Revised 08/09) CALIFORNIA ENERGY COMMISSION INSTALLATION CERTIFICATE CF-6R-MECH-08 Ice Storage Air Conditioning (ISAC) Units

Note: This page contains sample records for the topic "worst-case conditions occurring" 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

New Method Gives Precise Control in Air Conditioning  

Science Journals Connector (OSTI)

The Niagara "Controlled Humidity Method" is a new system of air conditioning giving complete control of temperature and relative humidity, holding constant conditions or varying them at the will of the user. ... A condition of 15 grains o f moisture per pound of air at 85 dcg. ...

1950-01-09T23:59:59.000Z

322

New Method Gives Precise Control in Air Conditioning  

Science Journals Connector (OSTI)

•The Niagara "Controlled Humidity Method" is a new system of air conditioning giving complete control of temperature and relative humidity, holding constant conditions or varying them at the will of the user. ... A condition of 15 grains of moisture per pound of air at 85 deg. ...

1950-02-13T23:59:59.000Z

323

INTRODUCTION In birds, the quality of rearing conditions is a  

E-Print Network [OSTI]

major, nest- ling condition affected recruitment probability but not reproductive success (Verboven- ling condition and survival better than with repro- ductive success and adult survival. These lifeINTRODUCTION In birds, the quality of rearing conditions is a major determinant of nestling body

Alvarez, Nadir

324

Focusing of Rayleigh waves generated by high-speed trains under the condition of ground vibration boom  

E-Print Network [OSTI]

In the present paper, the effects of focusing of Rayleigh waves generated by high speed trains in the supporting ground under the condition of ground vibration boom are considered theoretically. These effects are similar to the effects of focusing of sound waves radiated by aircraft under the condition of sonic boom. In particular, if a railway track has a bend to provide the possibility of changing direction of train movement, the Rayleigh surface waves generated by high-speed trains under the condition of ground vibration boom may become focused. This results in concentration of their energy along a simple caustic line at one side of the track and in the corresponding increase in ground vibration amplitudes. The effect of focusing of Rayleigh waves may occur also if a train moves along a straight line with acceleration and its current speed is higher than Rayleigh wave velocity in the ground. The obtained results are illustrated by numerical calculations.

Krylov, Victor V

2015-01-01T23:59:59.000Z

325

Practical stability assessment of distributed synchronous generators under variations in the system equilibrium conditions  

Science Journals Connector (OSTI)

Abstract This paper proposes a method to assess the practical stability of power distribution systems with synchronous generators subject to changes in the system equilibrium conditions due to fast varying loads. The concept of practical stability deals with two known state-space regions ?1 (which contains all the initial conditions reflecting the perturbations at which the system is subject during its operation) and ?2 (which represents the operating security region of the power distribution system) satisfying ?1 ? ?2. The practical stability problem and the focus of this paper is to determine under which conditions the system trajectories will be confined into a security region of operation for a certain time interval of interest, as the equilibrium point of the model changes. This study was carried out using a mathematical model of the distribution system with synchronous generators in the form of a switched affine system. This proposed model is capable of describing the system behavior over a certain period within which changes on the equilibrium conditions of the system can occur. Sufficient conditions for the power distribution system with synchronous generators described as a switched affine system to be practically stable with respect to its operating security region ?2 are given in the form of matrix inequalities constraints. The results, obtained for the model of a cogeneration plant of 10 MW added to a distribution network constituted by a feeder and six buses, show that the less stringent properties of the concept of practical stability can be very well-suited to the security analysis of power systems subjected to frequent variations in the load level.

Roman Kuiava; Rodrigo A. Ramos; Hemanshu R. Pota; Luis F.C. Alberto

2014-01-01T23:59:59.000Z

326

Fatigue and Creep Crack Propagation behaviour of Alloy 617 in the Annealed and Aged Conditions  

SciTech Connect (OSTI)

The crack propagation behaviour of Alloy 617 was studied under various conditions. Elevated temperature fatigue and creep-fatigue crack growth experiments were conducted at 650 and 800 degrees C under constant stress intensity (triangle K) conditions and triangular or trapezoidal waveforms at various frequencies on as-received, aged, and carburized material. Environmental conditions included both laboratory air and characteristic VHTR impure helium. As-received Alloy 617 displayed an increase in the crack growth rate (da/dN) as the frequency was decreased in air which indicated a time-dependent contribution component in fatigue crack propagation. Material aged at 650°C did not display any influence on the fatigue crack growth rates nor the increasing trend of crack growth rate with decreasing frequency even though significant microstructural evolution, including y’ (Ni3Al) after short times, occurred during aging. In contrast, carburized Alloy 617 showed an increase in crack growth rates at all frequencies tested compared to the material in the standard annealed condition. Crack growth studies under quasi-constant K (i.e. creep) conditions were also completed at 650 degrees C and a stress intensity of K = 40 MPa9 (square root)m. The results indicate that crack growth is primarily intergranular and increased creep crack growth rates exist in the impure helium environment when compared to the results in laboratory air. Furthermore, the propagation rates (da/dt) continually increased for the duration of the creep crack growth either due to material aging or evolution of a crack tip creep zone. Finally, fatigue crack propagation tests at 800 degrees C on annealed Alloy 617 indicated that crack propagation rates were higher in air than impure helium at the largest frequencies and lowest stress intensities. The rates in helium, however, eventually surpass the rates in air as the frequency is reduced and the stress intensity is decreased which was not observed at 650 degrees C.

Julian K. Benz; Richard N. Wright

2013-10-01T23:59:59.000Z

327

Technical-evaluation report on the adequacy of station electric-distribution-system voltages for the Vermont Yankee Nuclear Power Station. Document No. 50-271  

SciTech Connect (OSTI)

This report documents the technical evaluation of the adequacy of the station electric distribution system voltages for the Vermont Yankee Nuclear Power Station. The evaluation is to determine if the onsite distribution system, in conjunction with the offsite power sources, has sufficient capacity to automatically start and operate all Class 1E loads within the equipment voltage ratings under certain conditions established by the Nuclear Regulatory Commission. The evaluation finds that the voltage analyses submitted demonstrate that adequate voltage will be supplied to the Class 1E equipment under worst case conditions.

Selan, J.C.

1982-09-03T23:59:59.000Z

328

Seminar 14 - Desiccant Enhanced Air Conditioning: Desiccant Enhanced Evaporative Air Conditioning (Presentation)  

SciTech Connect (OSTI)

This presentation explains how liquid desiccant based coupled with an indirect evaporative cooler can efficiently produce cool, dry air, and how a liquid desiccant membrane air conditioner can efficiently provide cooling and dehumidification without the carryover problems of previous generations of liquid desiccant systems. It provides an overview to a liquid desiccant DX air conditioner that can efficiently provide cooling and dehumidification to high latent loads without the need for reheat, explains how liquid desiccant cooling and dehumidification systems can outperform vapor compression based air conditioning systems in hot and humid climates, explains how liquid desiccant cooling and dehumidification systems work, and describes a refrigerant free liquid desiccant based cooling system.

Kozubal, E.

2013-02-01T23:59:59.000Z

329

Definition: Diagnosis & Notification Of Equipment Condition | Open Energy  

Open Energy Info (EERE)

Diagnosis & Notification Of Equipment Condition Diagnosis & Notification Of Equipment Condition Jump to: navigation, search Dictionary.png Diagnosis & Notification Of Equipment Condition Diagnosis and notification of equipment condition is defined as on-line monitoring and analysis of equipment, its performance, and operating environment in order to detect abnormal conditions (e.g., high number of equipment operations, temperature, or vibration). Asset managers and operations personnel can then be automatically notified to respond to conditions that increase the probability of equipment failure.[1] Related Terms sustainability References ↑ SmartGrid.gov 'Description of Functions' An LikeLike UnlikeLike You like this.Sign Up to see what your friends like. inline Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Diagnosis_%26_Notification_Of_Equipment_Condition&oldid=502541"

330

Method and apparatus of assessing down-hole drilling conditions  

DOE Patents [OSTI]

A method and apparatus for use in assessing down-hole drilling conditions are disclosed. The apparatus includes a drill string, a plurality of sensors, a computing device, and a down-hole network. The sensors are distributed along the length of the drill string and are capable of sensing localized down-hole conditions while drilling. The computing device is coupled to at least one sensor of the plurality of sensors. The data is transmitted from the sensors to the computing device over the down-hole network. The computing device analyzes data output by the sensors and representative of the sensed localized conditions to assess the down-hole drilling conditions. The method includes sensing localized drilling conditions at a plurality of points distributed along the length of a drill string during drilling operations; transmitting data representative of the sensed localized conditions to a predetermined location; and analyzing the transmitted data to assess the down-hole drilling conditions.

Hall, David R. (Provo, UT); Pixton, David S. (Lehl, UT); Johnson, Monte L. (Orem, UT); Bartholomew, David B. (Springville, UT); Fox, Joe (Spanish Fork, UT)

2007-04-24T23:59:59.000Z

331

Using Modelica for Physical Modeling of Air-Conditioning Systems  

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

Using Modelica for Physical Modeling of Air-Conditioning Systems Using Modelica for Physical Modeling of Air-Conditioning Systems Speaker(s): Jonas Eborn Date: August 23, 2007 - 12:00pm Location: 90-4133 Seminar Host/Point of Contact: Michael Wetter The Air Conditioning library is a commercial Modelica library for the steady-state and transient simulation of air conditioning systems using both compact micro-channel heat exchangers as well as fin-and-tube type heat exchangers. Currently it is mostly used by automotive OEMs and suppliers that need high-accuracy system level models to evaluate energy efficiency of systems developed under the pressure of reduced design cycle times. The library also has applications in other areas, including aircraft cooling systems and residential air-conditioning. The Air Conditioning library contains published correlations for heat and mass transfer and

332

NREL: Vehicle Ancillary Loads Reduction - Air Conditioning and Emissions  

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

Conditioning and Emissions Conditioning and Emissions Air conditioning and indirect emissions go together in the sense that when a vehicle's air conditioning system is in use, fuel economy declines. When more petroleum fuel is burned, more pollution and greenhouse gases are emitted. An additional, "direct" source of greenhouse gas emissions is the refrigerant used in air conditioning. Called HFC-134a, this pressurized gas tends to seep through tiny openings and escapes into the atmosphere. It can also escape during routine service procedures such as system recharging. NREL's Vehicle Ancillary Loads Reduction team applied its vehicle systems modeling expertise in a study to predict fuel consumption and indirect emissions resulting from the use of vehicle air conditioning. The analysis

333

Final Expert Meeting Report: Simplified Space Conditioning Strategies for  

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

Final Expert Meeting Report: Simplified Space Conditioning Final Expert Meeting Report: Simplified Space Conditioning Strategies for Energy Efficient Houses Final Expert Meeting Report: Simplified Space Conditioning Strategies for Energy Efficient Houses More research is needed to evaluate the level of energy efficiency and the conditions where simplified space conditioning systems will work in new and retrofitted houses. Guidance is needed on the design and installation of these systems to support a wider adoption throughout the new construction and retrofit market. The purpose of this expert meeting was to recap the current state of knowledge in this area and to provide a peer review of IBACOSs research plan for new and existing unoccupied test houses with minimized space conditioning systems. expt_mtg_space_cond.pdf

334

Analysis of historical residential air-conditioning equipment sizing using monitored data  

SciTech Connect (OSTI)

Monitored data were analyzed to determine whether residential air conditioners in the Pacific Northwest historically have been sized properly to meet or slightly exceed actual cooling requirements. Oversizing air-conditioning equipment results in a loss of efficiency because of increased cycling and also lowers humidity control. On the other hand, the penalty of undersizing air-conditioning equipment may be some loss of comfort during extremely hot weather. The monitored data consist of hourly space-conditioning electrical energy use and internal air temperature data collected during the past 7 years from 75 residences in the Pacific Northwest. These residences are equipped with central air conditioners or heat pumps. The periods with the highest cooling energy use were analyzed for each site. A standard industry sizing methodology was used for each site to determine a sizing estimate. Both the sizing recommendation based on Manual J and peak monitored loads are compared to the capacity of the installed equipment for each site to study how the actual capacity differed from both the estimate of proper sizing and from actual demands. Characteristics of the maximum cooling loads are analyzed here to determine which conditions put the highest demand on the air conditioner. Specifically, internal air temperature data are used to determine when the highest cooling loads occur, at constant thermostat settings or when the thermostat was set down. This analysis of monitored data also provides insight into the extent that occupant comfort may be affected by undersizing air conditioners. The findings of this research indicate that cooling equipment historically has often but not always been oversized beyond industry-recommended levels. However, some occupants in homes with undersized, properly sized, and, in rare occasions, even oversized cooling equipment appear to suffer because the cooling equipment cannot always provide adequate cooling. Key findings are summarized.

Lucas, R.G.

1993-02-01T23:59:59.000Z

335

Personalized Conditioning with Human-in-the-Loop Control Approach  

E-Print Network [OSTI]

to the body?s thermoregulatory requirements. In cool conditions, the hand is fully vasoconstricted and the fingertips are the coldest areas of the hand. This pattern is reversed in warm conditions (Arens & Zhang 2006). Wang et al. reported that the finger... is a good indicator of the thermal sensation and comfort in cool conditions (Wang et al. 2007). The fingertip temperature (of the 4th finger) of 30 ?C was indicated as a threshold for cool discomfort possibility, while above this temperature...

Vesely, M.; Zeiler, W.; Boxem, G

2013-01-01T23:59:59.000Z

336

Air-Conditioning Systems Simulate World-Wide Climates  

Science Journals Connector (OSTI)

Air-Conditioning Systems Simulate World-Wide Climates ... WEATHER conditions equivalent to those in any part of the world can be simulated in a four-compartment test box set up at State College, Penna., by the U. S. Department of Agriculture's Regional Pasture Research Laboratory in its work to develop better pastures. ... Three heavily insulated doors permit access to each compartment; an inner door keeps conditioned air in the box from rushing out when the main door is opened. ...

1941-10-25T23:59:59.000Z

337

Subsidiary Conditions and Ghosts in Dual-Resonance Models  

Science Journals Connector (OSTI)

We investigate the possible subsidiary conditions compatible with the equations of motion of dual-resonance models for the unrealistic choice of ?(0)=1. In the language of four-dimensional harmonic oscillators, we find one subsidiary condition for each mode of oscillation. All time components (in the c.m. system) can therefore be eliminated. We discuss the possibility of relaxing the condition ?(0)=1.

M. A. Virasoro

1970-05-15T23:59:59.000Z

338

Environmental stress cracking of plastics under dynamic conditions  

E-Print Network [OSTI]

The objective of this study was to find out if dynamic conditions have any effect on the phenomenon of environmental stress cracking (ESC). Dynamic conditions in this study include thermal shock, mechanical shock, and vibrations. Injection blow molded... resistance of blow molded polyethylene containers. The experimental data indicated that each of the dynamic conditions accelerated the ESC. Therefore, the results obtained from the static tests cannot be used to predict the service life of the containers...

Suresh, Mitta

1992-01-01T23:59:59.000Z

339

Novel capability enables first test of real turbine engine conditions...  

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

conditions By Tona Kunz * September 16, 2014 Tweet EmailPrint Manufacturers of turbine engines for airplanes, automobiles and electric generation plants could expedite the...

340

ITP Petroleum Refining: Impacts of Condition Assessment on Energy...  

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

ITP Petroleum Refining: Impacts of Condition Assessment on Energy Use: Selected Applications in Chemicals Processing and Petroleum Refining ITP Petroleum Refining: Impacts of...

Note: This page contains sample records for the topic "worst-case conditions occurring" 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

Dirac quantization condition for monopole in noncommutative space-time  

SciTech Connect (OSTI)

Since the structure of space-time at very short distances is believed to get modified possibly due to noncommutativity effects and as the Dirac quantization condition, {mu}e=(N/2)({Dirac_h}/2{pi})c, probes the magnetic field point singularity, a natural question arises whether the same condition will still survive. We show that the Dirac quantization condition on a noncommutative space in a model of dynamical noncommutative quantum mechanics remains the same as in the commutative case to first order in the noncommutativity parameter {theta}, leading to the conjecture that the condition will not alter in higher orders.0.

Chaichian, Masud; Tureanu, Anca [Department of Physics, University of Helsinki, P.O. Box 64, FIN-00014 Helsinki (Finland); Helsinki Institute of Physics, P.O. Box 64, FIN-00014 Helsinki (Finland); Ghosh, Subir [Physics and Applied Mathematics Unit, Indian Statistical Institute, Kolkata-700108 (India); Laangvik, Miklos [Department of Physics, University of Helsinki, P.O. Box 64, FIN-00014 Helsinki (Finland)

2009-06-15T23:59:59.000Z

342

DOE Announces Webinars on High Performance Space Conditioning...  

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

of the Partnership for Home Innovation, discussing buried ducts in conditioned spaces; Jordan Dentz of Advanced Residential Integrated Energy Solutions, speaking about optimizing...

343

Dynamical shift conditions for the Z4 and BSSN formalisms  

Science Journals Connector (OSTI)

A class of dynamical shift conditions is shown to lead to a pseudohyperbolic evolution system, both in the Z4 and in the BSSN numerical relativity formalisms. This is done by using a plane-wave analysis which can be viewed as an extension of the standard Fourier analysis for this kind of systems. The proposed class generalizes the harmonic shift condition, where light speed is the only nontrivial characteristic speed, and it is contained into the multiparameter family of minimal distortion shift conditions recently proposed by Lindblom and Scheel. The relationship with the analogous “dynamical freezing” shift conditions used in black hole simulations is discussed.

C. Bona and C. Palenzuela

2004-05-07T23:59:59.000Z

344

Energy conditions in f(R, Lm) gravity  

Science Journals Connector (OSTI)

In order to constrain f(R, Lm) gravity from theoretical aspects, its energy conditions are derived in this paper. These energy conditions given by us are quite general and can be degenerated to the well-known energy conditions in general relativity and f(R) theories of gravity with arbitrary coupling, non-minimal coupling and non-coupling between matter and geometry, respectively, as special cases. To exemplify how to use these energy conditions to restrict f(R, Lm) gravity, we consider a special model in the FRW cosmology and give some corresponding results by using astronomical observations.

Jun Wang; Kai Liao

2012-01-01T23:59:59.000Z

345

DOE Challenge Home Technical Training- Ducts in Conditioned Space  

Broader source: Energy.gov [DOE]

A publication of the U.S. Department of Energy Challenge Home program: Design Options for Locating Ducts within Conditioned Space.

346

Nevada Department of Transportation - Terms and Conditions Relating...  

Open Energy Info (EERE)

Transportation - Terms and Conditions Relating to Highway Occupancy Permits Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Nevada Department of...

347

Numerical Modeling of the Nucleation Conditions of Petal-Centerline...  

Open Energy Info (EERE)

analysis revealed that outward directed traction boundary conditions on the borehole surface including weight on bit and excess drilling mud pressure suppress tensile stress...

348

Department of Energy Offers $2 Billion in Conditional Loan Guarantee...  

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

Commitments for Two California Concentrating Solar Power Plants Department of Energy Offers 2 Billion in Conditional Loan Guarantee Commitments for Two California...

349

Low Cost, High Impact Cable Condition Monitoring System Improves...  

Office of Science (SC) Website

and control. To address cable aging, the nuclear industry has been looking for a test system that can help with automated maintenance and condition monitoring of cables....

350

The effects of adverse environmental conditions on workload  

E-Print Network [OSTI]

WORKLOAD MEANS SHOWING SIGNIFICANT DIFFERENCES AS DETERMINED BY DUNCAN'S RANGE TEST Rank 1 2 3 4 5 6 7 Condition C HT HT/IN LT/CN LT/IN HT/CN LT Mean . 4287 . 5462 . 5475 . 5585 . 5684 . 6045 . 6071 C--Control condit1on HT--High temp. condition HT... Major Subject: Industrial Engineering THE EFFECTS OF ADVERSE ENVIRONMENTAL CONDITIONS ON WORKLOAD A Thesis by ANN ELIZABETH MARTIN Approved as to sty1e and content by: Chairman of Comnsttee Xc' ead of Departme lkI ?r, . ember Me er May 1975...

Martin, Ann Elizabeth

2012-06-07T23:59:59.000Z

351

Membranes and MEAs for Dry, Hot Operating Conditions  

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

Testing performance and durability. Tests will be performed in conductivity cells, single fuel cells and short stacks using realistic automotive testing conditions and protocols....

352

Department of Energy Offers Conditional Commitment for Loan Guarantee...  

Energy Savers [EERE]

Loan Guarantee to Support Solar Generation Project in Nevada Department of Energy Offers Conditional Commitment for Loan Guarantee to Support Solar Generation Project in Nevada May...

353

Impact of Infiltration and Ventilation on Measured Space Conditioning...  

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

Hot-humid PERFORMANCE DATA Costs for reducing infiltration and incorporating mechanical ventilation in buildings will vary greatly depending on the condition and...

354

CFD Combustion Modeling with Conditional Moment Closure using Tabulated Chemistry  

Broader source: Energy.gov [DOE]

A method is presented that allows for efficient conditional moment closure combustion simulations through the use of a progress variable based parameterization of the combustion chemistry.

355

Sustainability and Market Conditions:The Resource Efficiency paradox  

E-Print Network [OSTI]

Economics 23, 1- 14. Sustainability and Market Conditionsof environmental sustainability. Management InternationalJournal 44, 170-179. Sustainability and Market Conditions

Delmas, Magali; Pekovic, Sanja

2012-01-01T23:59:59.000Z

356

Department of Energy Offers Conditional Commitment for a Loan...  

Energy Savers [EERE]

of a conditional commitment for a 350 million loan guarantee to develop the One Nevada Transmission Line (ON Line), the first transmission line project to be offered a...

357

Surveillance Guides - QAS 2.1 Nonconforming Conditions  

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

NONCONFORMING CONDITIONS NONCONFORMING CONDITIONS 1.0 Objective The objective of this surveillance is to examine the effectiveness of the contractor's implementation of programs to identify, analyze and correct conditions that are adverse to quality. Such conditions may include equipment that may not be able to perform its safety functions, procedures that contain errors, safety analyses with incorrect assumptions, designs that include errors or are incomplete, or materials that are different than those specified. The surveillance provides a basis for examining the effectiveness of existing contractor programs and evaluating whether implementation of the programs complies with applicable DOE requirements. 2.0 References 2.1 DOE 5700.6C, Quality Assurance

358

Specially Conditioned EM Fields to Reduce Nuclear Fusion Input Energy Needs  

Science Journals Connector (OSTI)

Ordinary electromagnetic (EM) fields possess relatively simple \\{U1gauge\\} symmetry, and their angular momentum is analogous to that of spin1 particles whose likecharges attract and unlike charges repel. This manifests in coulomb repulsion between free electrons or ions and coulomb attraction between free electrons and ions. By contrast, angular momentum of SU(2) fields that describe the shortrange Weak Nuclear Force in atomic nuclei is analogous to that of spin2 particles whose likecharges attract. So, free ions that enter such small SU(2) field regions attract each other until their separation becomes so small that their fusion occurs. In this respect, Barrett has derived EM fields with the same SU(2) gauge symmetry and spin2 angular momentum as SU(2) matter fields in atomic nuclei. It is conceivable, therefore, that SU(2) EM fields might cause fuel ions inside nuclear fusion reactors to attract (rather than repel) each other. This paper, therefore, explores the possibility of SU(2) EM fields reducing the electrical compression energies these SU(2) EM fields must exert on fuel ions before fusion of the ions by the SU(2) matter fields of the weak nuclear force then occurs. A specific conditioning of U(1) EM field energy into SU(2) EM field energy was selected; a given type of fusion was assumed; and preliminary, parametric estimates of input electrical energy reductions were made.

H. David Froning Jr.; Terence W. Barrett; George H. Miley

2012-01-01T23:59:59.000Z

359

Potential oscillation during electrolysis of water in acidic solutions under numerous conditions  

Science Journals Connector (OSTI)

Abstract We have revealed that a novel potential oscillation occurs in hydrogen evolution reaction (HER) during water electrolysis, not only when H2SO4 solutions are used as electrolytes as has been reported in our earlier papers (Mukouyama et al., 2008; 2013), but also when a large variety of acid solutions are used as electrolytes. When the acid concentration is lower than ca. 0.1 M, the electrode potential oscillates spontaneously under current controlled conditions in a high overpotential region, e.g. more negative than ca. ?1.0 V vs. SHE. The oscillation appears by addition of a small amount of salts, such as LiClO4, Na2SO4, K2SO4 and MgSO4, even when the acid concentration is higher than ca. 0.1 M. We have also found that the oscillation occurs not only when Pt, Au or Cu is used as a working electrode as has been reported in the papers but also when various metal substrates such as Rh, Ag, Fe, Ni, W, Zn, Sn and In are used. It was revealed that the local pH at the electrode surface oscillates between acidic and basic synchronously with the potential oscillation. The mechanism of the oscillation can be explained by an autocatalytic bubble evolution and the changes in the local pH and in the concentration of dissolved hydrogen at the electrode surface due to the bubble evolution.

Yoshiharu Mukouyama; Ryusuke Nakazato; Tetsuaki Shiono; Shuji Nakanishi; Hiroshi Okamoto

2014-01-01T23:59:59.000Z

360

Building America Webinar: High Performance Space Conditioning Systems, Part I: Simplified Space Conditioning in Low Load Homes  

Broader source: Energy.gov [DOE]

This presentation was delivered at the U.S. Department of Energy Building America webinar, High Performance Space Conditioning Systems, Part I, on October 23, 2014.

Note: This page contains sample records for the topic "worst-case conditions occurring" 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

Speciation of plutonium and other metals under UREX process conditIONS  

SciTech Connect (OSTI)

The extractability of various Pu and Np species into tri-n-butyl phosphate (TBP) was investigated. The concentration effects of aceto-hydroxamic acid, nitric acid and nitrate on the distribution ratio of U, Pu and Np were investigated. The considerable ability of AHA to form complexes with the studied elements even under strong acidic conditions was found. While the difference in the extraction of uranyl in the presence and absence of AHA is minimal, extraction yields of Pu and Np decrease significantly. The UV-Vis-NIR and FT-IR spectroscopic investigations of uranium, plutonium, and neptunium species in the presence and absence of AHA in both aqueous and organic extraction phase were also performed. Spectroscopic analysis showed that the organic phase can contain a substantial amount of metal-hydroxamate species. A solvated ternary complex of uranium UO{sub 2}.AHA.NO{sub 3}.2TBP was observed only after prolonged contact between the aqueous and organic phases, whereas the plutonium hydroxamate species, presumably Pu(AHA){sub x}(NO{sub 3}){sub 4-x}.2TBP, appeared in the organic phase after a four minute extraction. (authors)

Paulenova, Alena; Tkac, Peter [Radiation Center, Oregon State University 100 Radiation Center, Corvallis, OR 97331-5903 (United States); Matteson, Brent S. [Department of Chemistry, Oregon State University 100 Radiation Center, Corvallis, OR 97331-5903 (United States)

2007-07-01T23:59:59.000Z

362

Low-Cost Thermocouple Signal-Conditioning Module  

Science Journals Connector (OSTI)

Low-Cost Thermocouple Signal-Conditioning Module ... In this article we present a signal-conditioning module, based on the AD594C chip (Analog Devices, Inc.), which can be easily built at low cost and overcomes the drawbacks associated with thermocouple use. ... Cost-Effective Teacher ...

Michael F. Cunningham; Marcelo K. Lenzi; Fabricio M. Silva; Enrique L. Lima; José Carlos Pinto

2005-01-01T23:59:59.000Z

363

Updated January 2014 CORE TERMS AND CONDITIONS OF SERVICE  

E-Print Network [OSTI]

and disciplinary action will be taken. Sustainability The College seeks to ensure that all its operational and conditions which apply to new staff employed with the College from May 1999. These terms also apply to staff appointed on the Imperial College Job Families pay structure. GENERAL CONDITIONS This document contains

364

CSC 1051 M.A. Papalaskari, Villanova University Conditional Statements  

E-Print Network [OSTI]

CSC 1051 M.A. Papalaskari, Villanova University Conditional Statements Dr. Mary-Angela Papalaskari); } CSC 1051 M.A. Papalaskari, Villanova University A boolean expression Review if true, do this if more statement 1 true false statement2 CSC 1051 M.A. Papalaskari, Villanova University condition evaluated

Papalaskari, Mary-Angela

365

Direct Digital Control in Air Conditioning Systems for Energy Efficiency  

E-Print Network [OSTI]

the function and the level of the building, but also save energy. At present, air-conditioning design in internal commercial buildings is becoming more complex and enormous. The proportion of air conditioning systems in the whole building is getting larger...

Liu, W.; Ye, A.; Li, D.

2006-01-01T23:59:59.000Z

366

Behaviour and performance of veal calves under different stabling conditions  

E-Print Network [OSTI]

with slightly sloping rubber floors, to facilitate slurry drainage. Also microclimate conditions differed for veal calf production, as shown by weight gain and behavioural parameters. The production performance condition, microclimate. Introduction In the production of veal calves, as in any other type of animal

Paris-Sud XI, Université de

367

Temporal Conditions and Integrity Constraints in Active Database Systems \\Lambda  

E-Print Network [OSTI]

database history. The evaluation algorithm is also an add­on component, executed on top of, and usingTemporal Conditions and Integrity Constraints in Active Database Systems \\Lambda A. Prasad Sistla, for specifying conditions and events in the rules for active database sys­ tem. This language permits

Wolfson, Ouri E.

368

1 INRODUCTION The physico-chemical conditions in hydrothermal  

E-Print Network [OSTI]

processes. At present, however, our greatest unknown with respect to hydrothermal systems is time1 INRODUCTION The physico-chemical conditions in hydrothermal systems change through time and have made great progress understanding the physico-chemical conditions that control hydrothermal

Pichler, Thomas

369

Conditions for successful learning of programming Jaana Holvikivi  

E-Print Network [OSTI]

Conditions for successful learning of programming skills Jaana Holvikivi Helsinki Metropolia with limited success. Undeniably, several good programming languages for beginners, as well as software. The results are, however, inconclusive. The present study attempts to shed light on the underlying conditions

Boyer, Edmond

370

Utility maximization in models with conditionally independent increments  

E-Print Network [OSTI]

Utility maximization in models with conditionally independent increments Jan Kallsen Johannes Muhle-Karbe Abstract We consider the problem of maximizing expected utility from terminal wealth in models for power utility under the assumption that the increments of the asset price are independent conditionally

Kallsen, Jan

371

On the method of additional conditions in mathematical physics  

Science Journals Connector (OSTI)

The method of additional conditions gives a well characteristic of the finite stresses near the tip of a crack of the Griffth's problem in fracture mechanics, where it is supposed of a finite elastic potential which entails the zero value of the J-integral. ... Keywords: Griffth's problem, Laplace equation, fracture, method of additional conditions, singularity

Igor Neygebauer

2011-04-01T23:59:59.000Z

372

Aerodynamic Optimization Under a Range of Operating Conditions  

E-Print Network [OSTI]

Aerodynamic Optimization Under a Range of Operating Conditions David W. Zingg and Samy Elias. This can be achieved through multipoint optimization. The desired performance objective and operating conditions must be speci ed, and the resulting optimization problem must be solved in such a manner

Zingg, David W.

373

Department of Energy Offers $2 Billion in Conditional Loan Guarantee  

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

Billion in Conditional Loan Billion in Conditional Loan Guarantee Commitments for Two California Concentrating Solar Power Plants Department of Energy Offers $2 Billion in Conditional Loan Guarantee Commitments for Two California Concentrating Solar Power Plants June 14, 2011 - 12:00am Addthis Washington D.C. --- U.S. Energy Secretary Steven Chu today announced the offer of conditional commitments to provide loan guarantees to support two concentrating solar power (CSP) projects - the Mojave Solar Project (MSP) in San Bernardino County, California, and the Genesis Solar Project, located on land managed by the Bureau of Land Management in Riverside County, California. The Department is offering a conditional commitment for a $1.2 billion loan guarantee to support the Mojave Solar Project and a

374

Reconstructing the History of Energy Condition Violation from Observational Data  

E-Print Network [OSTI]

We study the likelihood of energy condition violations in the history of the Universe. Our method is based on a set of functions that characterize energy condition violation. FLRW cosmological models are built around these "indication functions". By computing the Fisher matrix of model parameters using type Ia supernova and Hubble parameter data, we extract the principal modes of these functions' redshift evolution. These modes allow us to obtain general reconstructions of energy condition violation history independent of the dark energy model. We find that the data suggest a history of strong energy condition violation, but the null and dominant energy conditions are likely to be fulfilled. Implications for dark energy models are discussed.

Chao-Jian Wu; Cong Ma; Tong-Jie Zhang

2012-04-26T23:59:59.000Z

375

Numerical Modeling of the Nucleation Conditions of Petal-Centerline  

Open Energy Info (EERE)

the Nucleation Conditions of Petal-Centerline the Nucleation Conditions of Petal-Centerline Fractures below a Borehole Floor, A Sensitivity Study and Application to the Coso Geothermal Field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Numerical Modeling of the Nucleation Conditions of Petal-Centerline Fractures below a Borehole Floor, A Sensitivity Study and Application to the Coso Geothermal Field Details Activities (1) Areas (1) Regions (0) Abstract: A boundary element model using Poly3D© has been developed to investigate the conditions in which the stress concentration below the floor of a borehole can cause tensile stress necessary to nucleate petal-centerline fractures. The remote stress state, borehole geometry, and traction boundary conditions on the borehole surface are taken from direct

376

2015 IECC: What's new in next edition?  

E-Print Network [OSTI]

• New chapters on Existing Buildings ESL-KT-14-11-11 CATEE 2014: Clean Air Through Efficiency Conference, Dallas, Texas Nov. 18-20 Residential • Duct reduces insulation from R-8 to R-6 on duct less than 3 inches in diameter • Demand recirculation... Conference, Dallas, Texas Nov. 18-20 Residential • Appendix RA - Recommended Procedure for Worst-Case Testing of Atmospheric Venting Systems Under R402.4 or R405 Conditions <5ACH50 • Appendix RB - Solar-Ready Provisions – Detached One- and Two...

Ellis, S.

2014-01-01T23:59:59.000Z

377

Energy and global warming impacts of next generation refrigeration and air conditioning technologies  

SciTech Connect (OSTI)

Significant developments have occurred in hydrofluorocarbon (HFC) and the application of ammonia and hydrocarbons as refrigerant working fluids since the original TEWI (Total Equivalent Warming Impact) report in 1991. System operating and performance data on alternative refrigerants and refrigeration technologies justify and updated evaluation of these new alternative refrigerants and competing technologies in well-characterized applications. Analytical and experimental results are used to show quantitative comparisons between HFCS, HFC blends, hydrocarbons, and ammonia, used as refrigerants. An objective evaluation is presented for commercial and near commercial non-CFC refrigerants/blowing agents and alternative refrigeration technologies. This information is needed for objective and quantitative decisions on policies addressing greenhouse gas emissions from refrigeration and air conditioning equipment. The evaluation assesses the energy use and global warming impacts of refrigeration and air conditioning technologies that could be commercialized during the phase out of HCFCS. Quantitative comparison TEWI for two application areas are presented. Opportunities for significant reductions in TEWI are seen with currently known refrigerants through improved maintenance and servicing practices and improved product designs.

Sand, J.R.; Fischer, S.K.; Baxter, V.D.

1996-10-01T23:59:59.000Z

378

Module Development and Simulation of the Variable Refrigerant Flow Air Conditioning System under Cooling Conditions in Energyplus  

E-Print Network [OSTI]

As a high-efficiency air conditioning scheme, the variable refrigerant flow (VRF) air-conditioning system is finding its way into medium-sized office buildings. Based on a generic dynamic building energy simulation environment, EnergyPlus, a new...

Zhou, Y.; Wu, J.; Wang, R.; Shiochi, S.

2006-01-01T23:59:59.000Z

379

EXPLOSIONS CAUSED BY COMMONLY OCCURRING SUBSTANCES  

Science Journals Connector (OSTI)

...the nature of the operations is such that these explosions...that the limit of a safe oil as fixed by the 'flashing...ignition was found in the boiler fires, which were 60...in this report to the fundamental dis-tinctions between...a fire under a steam boiler, and that this vapor...

Charles E. Munroe

1899-03-10T23:59:59.000Z

380

Naturally Occurring Mutations in the WTI Gene  

Science Journals Connector (OSTI)

Dominant oncogenes, like myc or ras, confer a gain of func-tion to transformed cells.1,2 Gain-of-function mutations result in abnormal, positive signals for cell proliferation. In general, however, genetic altera...

Max J. Coppes M.D.; Ph.D.…

1995-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "worst-case conditions occurring" 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

EXPLOSIONS CAUSED BY COMMONLY OCCURRING SUBSTANCES  

Science Journals Connector (OSTI)

...S. BILLINGS, Hygiene; J. MCKEEN CATTELL, Psychology; DANIEL G. BRINTON, J. W. POWELL, Anthropology. FRIDIY, MARCH...ofsodium nitrate and hypophosphite detonate on heat-ing, while Violette proposed to use a mix-ture of sodium nitrate and acetate...

Charles E. Munroe

1899-03-10T23:59:59.000Z

382

Tetrahedral boron in naturally occurring tourmaline  

SciTech Connect (OSTI)

Evidence for boron in both trigonal and tetrahedral coordination has been found in {sup 11}B magic-angle-spinning (MAS) nuclear magnetic resonance (NMR) spectra of natural, inclusion-free specimens of aluminum-rich lithian tourmaline from granitic pregmatites.

Tagg, S.L.; Cho, H. [Pacific Northwest National Lab., Richland, WA (United States). Environmental Molecular Sciences Lab.; Dyar, M.D. [Mount Holyoke Coll., South Hadley, MA (United States). Dept. of Geology and Geography; Grew, E.S. [Univ. of Maine, Orono, ME (United States). Dept. of Geological Sciences

1999-09-01T23:59:59.000Z

383

Microsoft Word - SpecialTermsandConditions0506.doc  

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

Updated May 2006) Updated May 2006) Special Terms and Conditions for Use in Most Grants and Cooperative Agreements RESOLUTION OF CONFLICTING CONDITIONS Any apparent inconsistency between Federal statutes and regulations and the terms and conditions contained in this award must be referred to the DOE Award Administrator identified in Block 12 of the Notice of Financial Assistance Award for guidance. Alternate 1 PAYMENT PROCEDURES - ADVANCES THROUGH THE AUTOMATED STANDARD APPLICATION FOR PAYMENTS (ASAP) SYSTEM [Preferred method for nonprofit organizations, State and local governments, and Institutions of Higher Education. Use for awards to for-profit organizations, if advance payments are authorized in accordance

384

SF 6432-PO Standard Terms and Conditions for Purchase Orders  

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

PO (04-95) PO (04-95) SECTION II STANDARD TERMS AND CONDITIONS FOR PURCHASE ORDERS INDEX OF CLAUSES AWARD BASIS (Applicable only to the Request for Quotation). Unless otherwise specified in Section I of the RFQ, award will be on the basis of low net cost to Sandia. Low net cost includes price, transportation charges, and payment discount terms. ______________________________________________________________________________________________________________________________ The terms and conditions stated for this Purchase Order, referred herein as "contract," are the only ones governing this transaction and cannot be changed or terminated orally. No terms and conditions appearing on any form originated by the Contractor shall be applicable. ______________________________________________________________________________________________________________________________

385

Tracer Gas Transport under Mixed Convection Conditions in an Experimental  

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

Tracer Gas Transport under Mixed Convection Conditions in an Experimental Tracer Gas Transport under Mixed Convection Conditions in an Experimental Atrium: Comparison Between Experiments and CFD Predictions Title Tracer Gas Transport under Mixed Convection Conditions in an Experimental Atrium: Comparison Between Experiments and CFD Predictions Publication Type Journal Article Year of Publication 2006 Authors Jayaraman, Buvaneswari, Elizabeth U. Finlayson, Michael D. Sohn, Tracy L. Thatcher, Phillip N. Price, Emily E. Wood, Richard G. Sextro, and Ashok J. Gadgil Journal Atmospheric Environment Volume 40 Start Page Chapter Pagination 5236-5250 Keywords airflow and pollutant transport group, atria, indoor airflow and pollutant transport, indoor environment department, indoor pollutant dispersion, mixed convection, turbulence model

386

Criteria and Conditions for Authorizing Withdrawal, Diversion, and Storage  

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

Criteria and Conditions for Authorizing Withdrawal, Diversion, and Criteria and Conditions for Authorizing Withdrawal, Diversion, and Storage of Water (Iowa) Criteria and Conditions for Authorizing Withdrawal, Diversion, and Storage of Water (Iowa) < Back Eligibility Agricultural Commercial Construction Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Savings Category Buying & Making Electricity Water Home Weatherization Alternative Fuel Vehicles Hydrogen & Fuel Cells Program Info State Iowa Program Type Environmental Regulations

387

Energy conditions in the epoch of galaxy formation  

E-Print Network [OSTI]

The energy conditions of Einstein gravity (classical general relativity) do not require one to fix a specific equation of state. In a Friedmann-Robertson-Walker universe where the equation of state for the cosmological fluid is uncertain, the energy conditions provide simple, model-independent, and robust bounds on the behaviour of the density and look-back time as a function of red-shift. Current observations suggest that the "strong energy condition" is violated sometime between the epoch of galaxy formation and the present. This implies that no possible combination of "normal" matter is capable of fitting the observational data.

Visser, Matt

2015-01-01T23:59:59.000Z

388

Dual design resistor for high voltage conditioning and transmission lines  

DOE Patents [OSTI]

A dual resistor for eliminating the requirement for two different value resistors. The dual resistor includes a conditioning resistor at a high resistance value and a run resistor at a low resistance value. The run resistor can travel inside the conditioning resistor. The run resistor is capable of being advanced by a drive assembly until an electrical path is completed through the run resistor thereby shorting out the conditioning resistor and allowing the lower resistance run resistor to take over as the current carrier.

Siggins, Timothy Lynn (Newport News, VA); Murray, Charles W. (Hayes, VA); Walker, Richard L. (Norfolk, VA)

2007-01-23T23:59:59.000Z

389

General Conditions Applicable to Water Discharge Permits and Procedures and  

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

General Conditions Applicable to Water Discharge Permits and General Conditions Applicable to Water Discharge Permits and Procedures and Criteria for Issuing Water Discharge Permits (Connecticut) General Conditions Applicable to Water Discharge Permits and Procedures and Criteria for Issuing Water Discharge Permits (Connecticut) < Back Eligibility Agricultural Commercial Construction Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Program Info State Connecticut Program Type Siting and Permitting Provider Department of Energy and Environmental Protection

390

Test plan for high-burnup fuel cladding behavior under loss-of- coolant accident conditions  

SciTech Connect (OSTI)

Excessive oxidation, hydriding, and extensive irradiation damage occur in high-burnup fuel cladding, and as result, mechanical properties of high-burnup fuels are degraded significantly. This may influence the current fuel cladding failure limits for loss-of- coolant-accident (LOCA) situations, which are based on fuel cladding behavior for zero burnup. To avoid cladding fragmentation and fuel dispersal during a LOCA, 10 CFR 50.46 requires that peak cladding temperature shall not exceed 1204 degrees C (2200 degrees F) and that total oxidation of the fuel cladding nowhere exceeds 0.17 times total cladding thickness before oxidation. Because of the concern, a new experimental program to investigate high-burnup fuel cladding behavior under LOCA situations has been initiated under the sponsorship of the U.S. Nuclear Regulatory Commission. A hot-cell test plan to investigate single-rod behavior under simulated LOCA conditions is described in this paper. In the meantime, industry fuel design and operating conditions are expected to undergo further changes as more advanced cladding materials are developed. Under these circumstances, mechanical properties of high-burnup fuel cladding require further investigation so that results from studies on LOCA, reactivity- initiated-accident (RIA), operational transient, and power-ramping situations, can be extrapolated to modified or advanced cladding materials and altered irradiation conditions without repeating major integral experiments in test reactors. To provide the applicable data base and mechanistic understanding, tests will be conducted to determine dynamic and static fracture toughness and tensile properties. Background and rationale for selecting the specific mechanical properties tests are also described.

Chung, H.M.; Neimark, L.A.; Kassner, T.F.

1996-10-01T23:59:59.000Z

391

INITIAL TEST WELL CONDITIONING AT NOPAL I URANIUM DEPOSIT, SIERRA PENA BLANCA, CHIHUAHUA, MEXICO  

SciTech Connect (OSTI)

Three test wells, PB-1, PB-2, and PB-3, were drilled at the Nopal I uranium deposit as part of a natural analogue study to evaluate radionuclide transport processes during March-April 2003. The initial pumping to condition the wells was completed during December 2003. The PB-1 well, drilled immediately adjacent to the Nopal I ore body, was continuously cored to a depth of 250 m, terminating 20 m below the top of the measured water level. The PB-2 and PB-3 wells, which were drilled on opposite sides of PB-1 at a radial distance of approximately 40 to 50 m outside of the remaining projected ore body, were also drilled to about 20 m below the top of the measured water level. Each test well was completed with 4-inch (10.2-cm) diameter PVC casing with a slotted liner below the water table. Initial conditioning of all three wells using a submersible pump at low pump rates [less than 1 gallon (3.8 1) per minute] resulted in measurable draw down and recoveries. The greatest drawdown ({approx}15 m) was observed in PB-2, whereas only minor (<1 m) drawdown occurred in PB-3. For PB-1 and PB-2, the water turbidity decreased as the wells were pumped and the pH values decreased, indicating that the contamination from the drilling fluid was reduced as the wells were conditioned. Test wells PB-1 and PB-2 showed increased inflow after several borehole volumes of fluid were removed, but their inflow rates remained less that the pumping rate. Test well PB-3 showed the smallest drawdown and least change in pH and conductivity during initial pumping and quickest recovery with a rise in measured water level after conditioning. The 195 gallons (750 l) of water pumped from PB-3 during conditioning was discharged through a household sponge. That sponge showed measurable gamma radiation, which decayed to background values in less than 12 hours. Preliminary interpretations include filtration of a radioisotope source with a short half-life or of a radioisotope that volatized as the sponge dried, such as Rn-222 and its short-lived daughters. No filtration was used during the pumping of PB-1 or PB-2.

R.D. Oliver; J.C. Dinsmoor; S.J. Goldstein; I. Reyes; R. De La Garza

2005-07-11T23:59:59.000Z

392

Table S1. Mixed-model ANOVA and Tukey's HSD results for the diversity of co-occurring ant species in plots. Sites were locations within 5 different forest stands within  

E-Print Network [OSTI]

Table S1. Mixed-model ANOVA and Tukey's HSD results for the diversity of co- occurring ant species.64 0.0385 year*site*ground*ant 4 0.08581728 0.02145432 0.20 0.9400 Tukey's Studentized Range (HSD) Tests for Number of species. Means with the same letter are not significantly different. Tukey Grouping

393

Radiological consequences of ship collisions that might occur in U.S. Ports during the shipment of foreign research reactor spent nuclear fuel to the United States in break-bulk freighters  

SciTech Connect (OSTI)

Accident source terms, source term probabilities, consequences, and risks are developed for ship collisions that might occur in U.S. ports during the shipment of spent fuel from foreign research reactors to the United States in break-bulk freighters.

Sprung, J.L.; Bespalko, S.J.; Massey, C.D.; Yoshimura, R. [Sandia National Laboratory, Albuquerque, NM (United States); Johnson, J.D. [GRAM Inc., Albuquerque, NM (United States); Reardon, P.C. [PCRT Technologies, Albuquerque, NM (United States); Ebert, M.W.; Gallagher D.W. [Science Applications International Corp., Reston, VA (United States)

1996-08-01T23:59:59.000Z

394

Secretary Chu Offers $117 Million Conditional Commitment for Hawaii Wind  

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

Offers $117 Million Conditional Commitment for Hawaii Offers $117 Million Conditional Commitment for Hawaii Wind Power Project Secretary Chu Offers $117 Million Conditional Commitment for Hawaii Wind Power Project March 5, 2010 - 12:00am Addthis Washington DC --- U.S. Secretary of Energy Steven Chu today announced that the Department of Energy has offered a conditional commitment on a $117 million loan guarantee to finance the construction and start-up of an innovative 30 megawatt (MW) wind energy project in Kahuku, Hawaii. Kahuku Wind Power, LLC will install twelve 2.5 MW wind turbine generators along with a battery energy storage system for electricity load stability. The loan guarantee is being supported by funds made available from the American Recovery and Reinvestment Act. "This investment will create jobs and cut our dependence on oil, while

395

Heating, Ventilation, and Air Conditioning Renovations | Department of  

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

Heating, Ventilation, and Air Conditioning Renovations Heating, Ventilation, and Air Conditioning Renovations Heating, Ventilation, and Air Conditioning Renovations October 16, 2013 - 4:49pm Addthis Renewable Energy Options for HVAC Renovations Geothermal Heat Pumps (GHP) Solar Water Heating (SWH) Biomass Passive Solar Heating Biomass Heating Solar Ventilation Air Preheating Federal building renovations that encompass the heating, ventilation, and air conditioning (HVAC) systems in a facility provide a range of renewable energy opportunities. The primary technology option for HVAC renovations is geothermal heat pumps (GHP). Other options include leveraging a solar water heating (SWH) system to offset heating load or using passive solar heating or a biomass-capable furnace or boiler. Some facilities may also take

396

Converting Unconditioned Garage to Conditioned Space - Code Notes |  

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

Converting Unconditioned Garage to Conditioned Space - Code Notes Converting Unconditioned Garage to Conditioned Space - Code Notes Converting an existing unconditioned garage to conditioned space is a popular strategy for increasing the living space of a house. Typically, the conversion or remodeling must be done in compliance with construction codes in force at the time the remodel permit is issued. Compliance shall be demonstrated by meeting the requirements of the 2009 International Energy Conservation Code. Publication Date: Thursday, December 15, 2011 cn_converting_unconditioned_garage_to_conditioned_space.pdf Document Details Document Number: PNNL-SA-83069 Prepared by: Pacific Northwest National Laboratory for the U.S. Department of Energy Building Energy Codes Program Focus: Compliance Building Type: Residential

397

Department of Energy Offers First Conditional Commitment for a Loan  

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

First Conditional Commitment for a Loan First Conditional Commitment for a Loan Guarantee for Advanced Biofuels Plant Department of Energy Offers First Conditional Commitment for a Loan Guarantee for Advanced Biofuels Plant January 20, 2011 - 12:00am Addthis Washington D.C. --- U.S. Energy Secretary Steven Chu today announced the offer of a conditional commitment to Diamond Green Diesel, LLC, the proposed joint venture between Valero Energy Corporation and Darling International Inc., for a $241 million loan guarantee. The loan guarantee will support the construction of a 137-million gallon per year renewable diesel facility in Norco, Louisiana, about 20 miles west of New Orleans. Valero Energy Corporation plans to direct the design, construction and operation of the project and market all of its output, while Darling

398

President Obama Announces $400 Million Conditional Commitment Offer to  

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

$400 Million Conditional Commitment Offer $400 Million Conditional Commitment Offer to Support Solar Panel Manufacturing President Obama Announces $400 Million Conditional Commitment Offer to Support Solar Panel Manufacturing July 3, 2010 - 12:00am Addthis Washington D.C. - In his weekly video address, President Obama today announced the offer of a conditional commitment for a loan guarantee of $400 million to Abound Solar Manufacturing, LLC to manufacture state-of-the-art thin-film solar panels. This will be the first time this new manufacturing technology for Cadmium-Telluride panels is deployed commercially anywhere in the world. Funded by the American Recovery and Reinvestment Act, this project includes two facilities, one in Longmont, Colorado and the other in Tipton, Indiana. The Indiana facility will

399

Conditional Loan Guarantee to Support California Solar Generation Project |  

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

Conditional Loan Guarantee to Support California Solar Generation Conditional Loan Guarantee to Support California Solar Generation Project Conditional Loan Guarantee to Support California Solar Generation Project April 12, 2011 - 3:08pm Addthis An artist rendering of what the California Valley Solar Ranch project will look like post-construction . | courtesy of SunPower Corporation An artist rendering of what the California Valley Solar Ranch project will look like post-construction . | courtesy of SunPower Corporation Ginny Simmons Ginny Simmons Former Managing Editor for Energy.gov, Office of Public Affairs What does the project do? The project is expected to create more than 350 jobs, produce enough energy to power 60,000 homes, and avoid more than 430,000 tons of carbon pollution each year. Secretary Chu just announced an offer of a conditional commitment for a

400

Approaches to Selecting Design Temperatures for Air-Conditioning  

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

Approaches to Selecting Design Temperatures for Air-Conditioning Approaches to Selecting Design Temperatures for Air-Conditioning Speaker(s): Eric Peterson Date: July 7, 2005 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Philip Haves Edward A. Arens The presentation will describe and compare the methods of determining cooling design conditions used by ASHRAE and the Australian Institute of Refrigeration, Air-Conditioning and Heating. A case study based on weather data for Brisbane will be used to illustrate the issues that arise. One issue is the usefulness of the 3-hourly temperature observations archived in International Weather Office records compared to the hourly observations required by the ASHRAE method. Another issue is the use of daily maxima, which have been archived for over 100 years at many Australian locations. Daily data can easily be used to find trends

Note: This page contains sample records for the topic "worst-case conditions occurring" 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

Assessment of Initial Test Conditions for Experiments to Assess Irradiation  

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

Assessment of Initial Test Conditions for Experiments to Assess Assessment of Initial Test Conditions for Experiments to Assess Irradiation Assisted Stress Corrosion Cracking Mechanisms Assessment of Initial Test Conditions for Experiments to Assess Irradiation Assisted Stress Corrosion Cracking Mechanisms Irradiation-assisted stress corrosion cracking is a key materials degradation issue in today's nuclear power reactor fleet and affects critical structural components within the reactor core. The effects of increased exposure to irradiation, stress, and/or coolant can substantially increase susceptibility to stress-corrosion cracking of austenitic steels in high-temperature water environments. Despite 30 years of experience, the underlying mechanisms of Irradiation Assisted Stress Corrosion Cracking (IASCC) are unknown. Extended service conditions will increase the exposure

402

Department of Energy Offers First Conditional Commitment for a Loan  

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

First Conditional Commitment for a Loan First Conditional Commitment for a Loan Guarantee for Advanced Biofuels Plant Department of Energy Offers First Conditional Commitment for a Loan Guarantee for Advanced Biofuels Plant January 20, 2011 - 12:00am Addthis Washington D.C. --- U.S. Energy Secretary Steven Chu today announced the offer of a conditional commitment to Diamond Green Diesel, LLC, the proposed joint venture between Valero Energy Corporation and Darling International Inc., for a $241 million loan guarantee. The loan guarantee will support the construction of a 137-million gallon per year renewable diesel facility in Norco, Louisiana, about 20 miles west of New Orleans. Valero Energy Corporation plans to direct the design, construction and operation of the project and market all of its output, while Darling

403

Department of Energy Releases Conditional Agreement for New Nuclear Power  

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

Conditional Agreement for New Nuclear Conditional Agreement for New Nuclear Power Plants Department of Energy Releases Conditional Agreement for New Nuclear Power Plants September 25, 2007 - 2:49pm Addthis Marks initial step for sponsors of new nuclear plants to qualify for up to $2 billion in federal risk insurance WASHINGTON, DC - The U.S. Department of Energy (DOE) Secretary Samuel W. Bodman today released a Conditional Agreement for companies building new nuclear power plants in the United States to qualify for a portion of $2 billion in federal risk insurance. Risk insurance covers costs associated with certain regulatory or litigation-related delays - which are no fault of the company - that stall the start-up of these plants. Authorized by the Energy Policy Act of 2005 (EPAct), risk insurance provides incentive

404

DOE Offers $72 Million Conditional Loan Guarantee to SAGE Electrochromics |  

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

72 Million Conditional Loan Guarantee to SAGE 72 Million Conditional Loan Guarantee to SAGE Electrochromics DOE Offers $72 Million Conditional Loan Guarantee to SAGE Electrochromics March 5, 2010 - 12:00am Addthis Washington DC --- Energy Secretary Steven Chu today announced the Department of Energy has offered a conditional commitment for a $72 million loan guarantee to SAGE Electrochromics, based in Faribault, Minnesota. The deal will support the financing of the construction and operation of a 250,000 square foot, high volume manufacturing facility to produce SageGlass®, an energy-saving window technology for commercial use. This new facility will be built next to SAGE's existing production facility, enabling the company to expand production and lower costs. "This investment will help cut utility bills, reduce carbon pollution, and

405

Department of Energy Offers $17 Million Conditional Commitment to Improve  

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

7 Million Conditional Commitment to 7 Million Conditional Commitment to Improve Reliability of New York State's Electrical Grid Department of Energy Offers $17 Million Conditional Commitment to Improve Reliability of New York State's Electrical Grid August 2, 2010 - 12:00am Addthis Washington D.C. --- Energy Secretary Steven Chu today offered AES Energy Storage, LLC a conditional commitment for a loan guarantee for $17.1 million to support the construction of a 20 megawatt (MW) energy storage system using advanced lithium-ion batteries. The AES project, located in Johnson City, New York, will help provide a more stable and efficient electrical grid for the state's high-voltage transmission network. "Effective energy storage systems are crucial to harnessing the power of renewable energy and getting it onto the grid," said Secretary Chu.

406

Obama Administration Offers $59 Million in Conditional Loan Guarantees to  

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

Obama Administration Offers $59 Million in Conditional Loan Obama Administration Offers $59 Million in Conditional Loan Guarantees to Beacon Power and Nordic Windpower, Inc. Obama Administration Offers $59 Million in Conditional Loan Guarantees to Beacon Power and Nordic Windpower, Inc. July 2, 2009 - 12:00am Addthis WASHINGTON, DC -- Secretary Steven Chu today announced $59 million in conditional loan guarantees from the Department of Energy for Nordic Windpower, USA, and Beacon Power. Nordic Windpower has been offered $16 million to support the expansion of its assembly plant in Pocatello, Idaho, to produce its one megawatt wind turbine. Beacon Power, an energy storage company, has been offered $43 million to support the construction of its 20 megawatt flywheel energy storage plant in Stephentown, New York that will

407

Department of Energy Offers $102 Million Conditional Commitment for Loan  

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

02 Million Conditional Commitment for 02 Million Conditional Commitment for Loan Guarantee to U.S. Geothermal, Inc. Department of Energy Offers $102 Million Conditional Commitment for Loan Guarantee to U.S. Geothermal, Inc. June 10, 2010 - 12:00am Addthis Washington, D.C. --- Energy Secretary Steven Chu today announced the offer of a $102.2 million conditional commitment for a loan guarantee to U.S. Geothermal, Inc. to construct a 22 megawatt geothermal power project in Malheur County, in southeastern Oregon. U.S. Geothermal estimates that the planned project will create 150 jobs during the 20-month construction period and employ 10 skilled full-time workers when it begins operating in 2012. The project will use an improved technology to extract energy from rock and fluids in the earth's crust more efficiently. The technology, referred to

408

Secretary Chu, Senator Reid, Rep. Berkley Announce Conditional Commitment  

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

Chu, Senator Reid, Rep. Berkley Announce Conditional Chu, Senator Reid, Rep. Berkley Announce Conditional Commitment for Loan Guarantee to Fotowatio Solar Project Near Las Vegas, Nevada Secretary Chu, Senator Reid, Rep. Berkley Announce Conditional Commitment for Loan Guarantee to Fotowatio Solar Project Near Las Vegas, Nevada June 2, 2011 - 12:00am Addthis Washington D.C. -- U.S. Energy Secretary Steven Chu, Senate Majority Leader Harry Reid and Nevada Congresswoman Shelley Berkley today announced the offer of a conditional commitment for a $45.6 million loan guarantee by the Department of Energy to support a 20 megawatt AC photovoltaic (PV) solar generating facility. The project, sponsored by Fotowatio Renewable Ventures, Inc., is being supported by DOE with funding from the 2009 Recovery Act. It will be developed approximately 25 miles northeast of Las

409

Energy Department Offers Conditional Commitment to Support Nevada  

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

Department Offers Conditional Commitment to Support Nevada Department Offers Conditional Commitment to Support Nevada Geothermal Development with Recovery Act Funds Energy Department Offers Conditional Commitment to Support Nevada Geothermal Development with Recovery Act Funds June 15, 2010 - 12:00am Addthis Washington D.C. --- Energy Secretary Steven Chu today announced a conditional commitment to provide a partial guarantee for a $98.5 million loan by John Hancock Financial Services to the Nevada Geothermal Power Company (NGP) for a 49.5 megawatt geothermal project in Humboldt County in northwestern Nevada. The NGP Blue Mountain ("Blue Mountain") project consists of a geothermal well field, fluid collection and injection systems that enable energy to be extracted from rock and fluid below the Earth's surface, and a power plant

410

Power Conditioning and Control Applications for Energy Conservation  

E-Print Network [OSTI]

Electrical power conditioning and control (PCC) systems are finding cost effective applications in AC motor drives, lamp ballasts and power supplies. Substantial system efficiency improvements are being realized when the appropriate PCC system...

Brushwood, J. S.

1982-01-01T23:59:59.000Z

411

Compressed absorbing boundary conditions for the Helmholtz equation  

E-Print Network [OSTI]

Absorbing layers are sometimes required to be impractically thick in order to offer an accurate approximation of an absorbing boundary condition for the Helmholtz equation in a heterogeneous medium. It is always possible ...

Bélanger-Rioux, Rosalie

2014-01-01T23:59:59.000Z

412

Reducing Air-Conditioning System Energy Using a PMV Index  

E-Print Network [OSTI]

ICEBO2006, Shenzhen, China Maximize Comfort: Temperature, Humidity and IAQ Vol.I-4-1 Reducing Air-Conditioning System Energy Using a PMV Index Hui Li Qingfan Zhang Associate professor...

Li, H.; Zhang, Q.

2006-01-01T23:59:59.000Z

413

Modeling inductively coupled plasmas: The coil current boundary condition  

Science Journals Connector (OSTI)

In modeling inductively coupled plasmas the boundary condition for the electromagnetic field equations can be treated by specifying either the current in the induction coil or the total power dissipated in the plasma. This paper presents a method for using the coil current boundary condition. An advantage of using the coil current boundary condition is that coil current unlike plasma power dissipation is easily measured; in this approach the plasma power dissipation is an outcome of the calculation. The results of sample calculations are presented covering a range of coil currents from 59 to 110 A. The conditions of the calculations correspond to experimental argon plasmas at atmospheric pressure and at 3.0 MHz frequency. The calculated isotherms are in good qualitative agreement with photographs of the laboratory plasmas.

Benjamin W. Yu; Steven L. Girshick

1991-01-01T23:59:59.000Z

414

DOE Webinar: Retrofitting Central Space Conditioning Strategies for Multifamily Buildings  

Broader source: Energy.gov [DOE]

The Building America Program is hosting a no-cost, webinar-based training on Retrofitting Central Space Conditioning Strategies for Multifamily Buildings. The webinar will focus on improving the...

415

Experimental Study on Sludge Dewatering under Additives Conditioning  

Science Journals Connector (OSTI)

The key difficulty of sludge dewatering is the gelatification among water and solid particles, which leads to the difficult removal of floc water. The way of sludge ... it is shown that sludge conditioning by cer...

Guolu Yang; Shentang Dou; Shifu Qin…

2007-01-01T23:59:59.000Z

416

Initial conditions estimation for improving forecast accuracy in exponential smoothing  

Science Journals Connector (OSTI)

In this paper we analyze the importance of initial conditions in exponential smoothing models on forecast errors and prediction intervals. We work with certain exponential smoothing models, namely Holt’s additive...

E. Vercher; A. Corberán-Vallet; J. V. Segura; J. D. Bermúdez

2012-07-01T23:59:59.000Z

417

Exploring firm emergence: initially conditioned or actively created?  

Science Journals Connector (OSTI)

Previous research has established a connection between initial conditions and new firm performance. Research on the gestation activities of nascent entrepreneurs, on the other hand, has demonstrated the potential importance of active behaviours on firm emergence. Since no research has addressed the effects of these two constructs on firm emergence in an empirical fashion, we frame this paper as an exploratory study designed to answer the following research question: to what extent do initial conditions and/or active behaviours explain firm emergence? We use a French national business plan competition to identify nascent firms. As a result, it seems that only active behaviours make a statistically significant impact on firm emergence, while initial conditions do not. Therefore, our preliminary finding is that a firm emerges merely through the active behaviours of entrepreneurs rather than as an outcome of initial conditions.

Erno T. Tornikoski; Vesa Puhakka

2009-01-01T23:59:59.000Z

418

Scenarios of Future Snow Conditions in Styria (Austrian Alps)  

Science Journals Connector (OSTI)

A hydrometeorological model chain is applied to investigate climate change effects on natural and artificial snow conditions in the Schladming region in Styria (Austria). Four dynamically refined realizations of the IPCC A1B scenario covering the ...

Thomas Marke; Ulrich Strasser; Florian Hanzer; Johann Stötter; Renate Anna Irma Wilcke; Andreas Gobiet

419

Requirements for Determining Refrigerant Charge Residential Air Conditioning Measures  

E-Print Network [OSTI]

Requirements for Determining Refrigerant Charge Residential Air Conditioning Measures Improved Refrigerant Charge Purpose Component packages require in some climate zones that split system air refrigerant charge. For the performance method, the proposed design is modeled with less efficiency

420

The time of possibilities : truth and felicity of subjunctive conditionals  

E-Print Network [OSTI]

This dissertation is a study of modality and, in particular, of conditional statements within the framework of possible world semantics. I argue that in order to understand what the meaning of a modal sentence is we need ...

Ippolito, Michela M., 1970-

2002-01-01T23:59:59.000Z

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


421

Assessing United States hurricane damage under different environmental conditions  

E-Print Network [OSTI]

Hurricane activity between 1979 and 2011 was studied to determine damage statistics under different environmental conditions. Hurricanes cause billions of dollars of damage every year in the United States, but damage ...

Maheras, Anastasia Francis

2012-01-01T23:59:59.000Z

422

Department of Energy Offers Abengoa Bioenergy a Conditional Commitment...  

Office of Environmental Management (EM)

of a conditional commitment for a 133.9 million loan guarantee to Abengoa Bioenergy Biomass of Kansas LLC (ABBK) to support the development of a commercial-scale cellulosic...

423

BLM Manual 2805: Terms and Conditions for FLPMA Grants | Open...  

Open Energy Info (EERE)

search OpenEI Reference LibraryAdd to library PermittingRegulatory Guidance - GuideHandbook: BLM Manual 2805: Terms and Conditions for FLPMA GrantsPermittingRegulatory...

424

Characteristics of Wind Turbines Under Normal and Fault Conditions: Preprint  

SciTech Connect (OSTI)

This paper investigates the characteristics of a variable-speed wind turbine connected to a stiff or weak grid under normal and fault conditions and the role of reactive power compensation.

Muljadi, E.; Butterfield, C. P.; Parsons, B.; Ellis, A.

2007-02-01T23:59:59.000Z

425

Evaluation of Laboratory Conditioning Protocols for Warm-Mix Asphalt  

E-Print Network [OSTI]

used to select a conditioning protocol to simulate pavement stiffness in its early life. The number of Superpave Gyratory Compactor (SGC) gyrations to get 7±0.5% air voids (AV) was the alternative parameter. Extracted binder stiffness and aggregate...

Yin, Fan 1990-

2012-10-26T23:59:59.000Z

426

E-Print Network 3.0 - alternating microaerophilic conditions...  

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

genes through Bayesian clustering of predicted Summary: of nrdAB is regulated by DnaA, Fis, and IciA12,13 . Microaerophilic conditions cause the up... , nrdAB is expressed under...

427

Topological conditions for the representation of preorders by continuous utilities  

E-Print Network [OSTI]

We remove the Hausdorff condition from Levin's theorem on the representation of preorders by families of continuous utilities. We compare some alternative topological assumptions in a Levin's type theorem, and show that they are equivalent to a Polish space assumption.

E. Minguzzi

2011-12-13T23:59:59.000Z

428

Performance Evaluation of Surveillance Systems Under Varying Conditions  

E-Print Network [OSTI]

/outdoor, different weather conditions (precipitation, wind, and brightness), different cameras of metrics. Visualization of the performance results has proven critical for understanding the weaknesses, as the weather varies, the seasons change, and the daily events unfold. Performance evaluation of automatic

Senior, Andrew

429

Autocatalytic water dissociation on Cu(110) at near ambient conditions  

E-Print Network [OSTI]

from ultra-high vacuum (UHV) studies 2,3 and theory 4-10 ,present authors under UHV conditions and low temperatures. 2on Cu(110) under ultra-high vacuum (UHV) and low temperature

Andersson, Klas

2007-01-01T23:59:59.000Z

430

Mechanisms of compaction of quartz sand at diagenetic conditions  

E-Print Network [OSTI]

reserved. Keywords: compaction; subcritical crack growth; pressure solution; diagenesis; microstructures- nisms of subcritical crack growth and pressure solution (stress or strain induced dissolution, dif rate at long times under wet conditions reflect an increase in the contribution of subcritical cracking

Chester, Frederick M.

431

Ge quantum dots structural peculiarities depending on the preparation conditions  

Science Journals Connector (OSTI)

EXAFS and XANES spectroscopy methods have been applied in a study of the influence of the preparation conditions on the spatial and electronic structure of Ge/Si heterostructures.

Erenburg, S.

2003-08-28T23:59:59.000Z

432

Department of Energy Offers Conditional Loan Guarantee Commitments to  

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

Commitments Commitments to Support Nearly $4.5 Billion in Loans for Three California Photovoltaic Solar Power Plants Department of Energy Offers Conditional Loan Guarantee Commitments to Support Nearly $4.5 Billion in Loans for Three California Photovoltaic Solar Power Plants June 30, 2011 - 12:00am Addthis Washington D.C. - U.S. Energy Secretary Steven Chu today announced offers of conditional commitments for loan guarantees, of approximately $4.5 billion, to support three alternating current Cadmium Telluride (Cd-Te) thin film photovoltaic (PV) solar generation facilities. The Department is offering a conditional commitment for a $680 million loan guarantee to support the Antelope Valley Solar Ranch 1 project, conditional commitments for partial loan guarantees of $1.88 billion in loans to support the Desert

433

Department of Energy Offers Abengoa Bioenergy a Conditional Commitment for  

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

Abengoa Bioenergy a Conditional Abengoa Bioenergy a Conditional Commitment for a $133.9 Million Loan Guarantee Department of Energy Offers Abengoa Bioenergy a Conditional Commitment for a $133.9 Million Loan Guarantee August 19, 2011 - 11:15am Addthis Groundbreaking Cellulosic Ethanol Project Expected to Create Over 300 Jobs and Build Nation's Capacity for Cellulosic Ethanol Production Washington D.C. - U.S. Energy Secretary Steven Chu today announced the offer of a conditional commitment for a $133.9 million loan guarantee to Abengoa Bioenergy Biomass of Kansas LLC (ABBK) to support the development of a commercial-scale cellulosic ethanol plant. ABBK's parent company and project sponsor, Abengoa Bioenergy US Holding, Inc., estimates the project will create approximately 300 construction jobs and 65 permanent

434

Double-Shell Tank Construction: Extent of Condition  

SciTech Connect (OSTI)

This presentation covers: quick recap of Hanford DSTs and the contribution of construction difficulties which led to the leak in tank AY-102; approach to Extent of Condition reviews; typical DST construction sequence; presentation of construction information resulting from extent of condition reviews of other DST farms with comparison to tank AY-102; and overall conclusion and impact of issues on the other DST tank farms.

Venetz, Theodore J.; Gunter, Jason R.

2014-05-13T23:59:59.000Z

435

School Conditions Will Continue to Earn Failing Grades  

E-Print Network [OSTI]

the conditions audit at the Washington State Elementary School, three concerns were identified as targets for possible retrofit work. Ventilation for both the gym and large multipurpose community room was controlled by timers set for periods of occupancy... the conditions audit at the Washington State Elementary School, three concerns were identified as targets for possible retrofit work. Ventilation for both the gym and large multipurpose community room was controlled by timers set for periods of occupancy...

Sonne, J. K.; Vieira, R. K.; Cummings, J. B.

2006-01-01T23:59:59.000Z

436

Transient thermal behavior of stratospheric balloons at float conditions  

Science Journals Connector (OSTI)

The prediction of the thermal behavior of stratospheric balloons under varying environmental conditions is one of the key issues in the design and flight test of balloons. In this paper, a three-dimensional transient thermal model is developed to predict the thermal behavior of spherical stratospheric balloons. The diurnal variations of the skin and lifting gas temperatures at float conditions are discussed in detail. The further studies on the thermal behavior of stratospheric balloons are presented also.

Xin-Lin Xia; De-Fu Li; Chuang Sun; Li-Ming Ruan

2010-01-01T23:59:59.000Z

437

CP violation conditions in N-Higgs-doublet potentials  

E-Print Network [OSTI]

Conditions for CP violation in the scalar potential sector of general N-Higgs-doublet models (NHDMs) are analyzed from a group theoretical perspective. For the simplest two-Higgs-doublet model (2HDM) potential, a minimum set of conditions for explicit and spontaneous CP violation is presented. The conditions can be given a clear geometrical interpretation in terms of quantities in the adjoint representation of the basis transformation group for the two doublets. Such conditions depend on CP-odd pseudoscalar invariants. When the potential is CP invariant, the explicit procedure to reach the real CP-basis and the explicit CP transformation can also be obtained. The procedure to find the real basis and the conditions for CP violation are then extended to general NHDM potentials. The analysis becomes more involved and only a formal procedure to reach the real basis is found. Necessary conditions for CP invariance can still be formulated in terms of group invariants: the CP-odd generalized pseudoscalars. The problem can be completely solved for three Higgs-doublets.

C. C. Nishi

2006-05-14T23:59:59.000Z

438

Learning to change, changing to learn : district conditions for organizational learning  

E-Print Network [OSTI]

presence of all conditions would guarantee success. However,as well as the conditions that enabled the success of thoselearning condition does not necessarily negate success any

Guthrie, Victor Anthony

2011-01-01T23:59:59.000Z

439

Oxygen Loss from Venus and the Influence of Extreme Solar Wind Conditions  

E-Print Network [OSTI]

the influence of extreme solar wind conditions on O + escapeand the Influence of Extreme Solar Wind Conditions by Tessand the Influence of Extreme Solar Wind Conditions Copyright

McEnulty, Tess

2012-01-01T23:59:59.000Z

440

Seal inlet disturbance boundary conditions for rotordynamic models and influence of some off-design conditions on labyrinth rotordynamic instability  

E-Print Network [OSTI]

the swirl slip velocity. The benefits of using the new seal-inlet boundary condition correlations were assessed by implementing them into a CFD-perturbation model. Consistently improved agreement with measurements was obtained for both liquid annular seals...

Xi, Jinxiang

2007-04-25T23:59:59.000Z

Note: This page contains sample records for the topic "worst-case conditions occurring" 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.


441

Studies in the Respiratory and Carbohydrate Metabolism of Plant Tissues. III. Experimental Studies of the Formation of Carbon Dioxide and of the Changes in Lactic Acid and other Products in Potato Tubers in Air Following Anaerobic Conditions  

Science Journals Connector (OSTI)

...in Air Following Anaerobic Conditions J. Barker A. F. El Saifi This paper is the third in a series dealing with the anaerobic metabolism of potato tubers. In the two earlier papers (Barker Saifi 1952a, b) we considered the changes which occurred during...

1953-01-01T23:59:59.000Z

442

Conditions for diffusion-limited and reaction-limited recombination in nanostructured solar cells  

SciTech Connect (OSTI)

The performance of Dye-sensitized solar cells (DSC) and related devices made of nanostructured semiconductors relies on a good charge separation, which in turn is achieved by favoring charge transport against recombination. Although both processes occur at very different time scales, hence ensuring good charge separation, in certain cases the kinetics of transport and recombination can be connected, either in a direct or an indirect way. In this work, the connection between electron transport and recombination in nanostructured solar cells is studied both theoretically and by Monte Carlo simulation. Calculations using the Multiple-Trapping model and a realistic trap distribution for nanostructured TiO{sub 2} show that for attempt-to-jump frequencies higher than 10{sup 11}–10{sup 13} Hz, the system adopts a reaction limited (RL) regime, with a lifetime which is effectively independent from the speed of the electrons in the transport level. For frequencies lower than those, and depending on the concentration of recombination centers in the material, the system enters a diffusion-limited regime (DL), where the lifetime increases if the speed of free electrons decreases. In general, the conditions for RL or DL recombination depend critically on the time scale difference between recombination kinetics and free-electron transport. Hence, if the former is too rapid with respect to the latter, the system is in the DL regime and total thermalization of carriers is not possible. In the opposite situation, a RL regime arises. Numerical data available in the literature, and the behavior of the lifetime with respect to (1) density of recombination centers and (2) probability of recombination at a given center, suggest that a typical DSC in operation stays in the RL regime with complete thermalization, although a transition to the DL regime may occur for electrolytes or hole conductors where recombination is especially rapid or where there is a larger dispersion of energies of electron acceptors.

Ansari-Rad, Mehdi, E-mail: ansari.rad@ut.ac.ir [Department of Physics, University of Tehran, 1439955961 Tehran (Iran, Islamic Republic of) [Department of Physics, University of Tehran, 1439955961 Tehran (Iran, Islamic Republic of); Department of Physics, University of Shahrood, Shahrood (Iran, Islamic Republic of); Anta, Juan A., E-mail: anta@upo.es [Departamento de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, 41013 Sevilla (Spain); Arzi, Ezatollah [Department of Physics, University of Tehran, 1439955961 Tehran (Iran, Islamic Republic of)] [Department of Physics, University of Tehran, 1439955961 Tehran (Iran, Islamic Republic of)

2014-04-07T23:59:59.000Z

443

Experimental study of elliptical jet from sub to supercritical conditions  

SciTech Connect (OSTI)

The jet mixing at supercritical conditions involves fluid dynamics as well as thermodynamic phenomena. All the jet mixing studies at critical conditions to the present date have focused only on axisymmetric jets. When the liquid jet is injected into supercritical environment, the thermodynamic transition could be well understood by considering one of the important fluid properties such as surface tension since it decides the existence of distinct boundary between the liquid and gaseous phase. It is well known that an elliptical liquid jet undergoes axis-switching phenomena under atmospheric conditions due to the presence of surface tension. The experimental investigations were carried out with low speed elliptical jet under supercritical condition. Investigation of the binary component system with fluoroketone jet and N{sub 2} gas as environment shows that the surface tension force dominates for a large downstream distance, indicating delayed thermodynamic transition. The increase in pressure to critical state at supercritical temperature is found to expedite the thermodynamic transition. The ligament like structures has been observed rather than droplets for supercritical pressures. However, for the single component system with fluoroketone jet and fluoroketone environment shows that the jet disintegrates into droplets as it is subjected to the chamber conditions even for the subcritical pressures and no axis switching phenomenon is observed. For a single component system, as the pressure is increased to critical state, the liquid jet exhibits gas-gas like mixing behavior and that too without exhibiting axis-switching behavior.

Muthukumaran, C. K.; Vaidyanathan, Aravind, E-mail: aravind7@iist.ac.in [Department of Aerospace Engineering, Indian Institute of Space Science and Technology, Trivandrum, Kerala 695547 (India)] [Department of Aerospace Engineering, Indian Institute of Space Science and Technology, Trivandrum, Kerala 695547 (India)

2014-04-15T23:59:59.000Z

444

Secretary Chu, Senator Reid Announce Department of Energy Conditional  

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

Chu, Senator Reid Announce Department of Energy Chu, Senator Reid Announce Department of Energy Conditional Commitment for a Loan Guarantee for Nevada Geothermal Project Secretary Chu, Senator Reid Announce Department of Energy Conditional Commitment for a Loan Guarantee for Nevada Geothermal Project June 9, 2011 - 12:00am Addthis Washington, D.C. - U.S. Energy Secretary Steven Chu and Senate Majority Leader Harry Reid today announced the offer of a conditional commitment to provide a partial guarantee for a $350 million loan for a geothermal power generation project. The project, sponsored by Ormat Nevada, Inc., is expected to produce a total of 121 megawatts (MW) of clean, baseload power from three geothermal power facilities and will increase geothermal power production in Nevada by nearly 25 percent. The facilities are Jersey

445

Secretary Chu, Senator Reid Announce Department of Energy Conditional  

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

Chu, Senator Reid Announce Department of Energy Chu, Senator Reid Announce Department of Energy Conditional Commitment for a Loan Guarantee for Nevada Geothermal Project Secretary Chu, Senator Reid Announce Department of Energy Conditional Commitment for a Loan Guarantee for Nevada Geothermal Project June 9, 2011 - 12:00am Addthis Washington, D.C. - U.S. Energy Secretary Steven Chu and Senate Majority Leader Harry Reid today announced the offer of a conditional commitment to provide a partial guarantee for a $350 million loan for a geothermal power generation project. The project, sponsored by Ormat Nevada, Inc., is expected to produce a total of 121 megawatts (MW) of clean, baseload power from three geothermal power facilities and will increase geothermal power production in Nevada by nearly 25 percent. The facilities are Jersey Valley

446

Department of Energy Conditional Loan Guarantee Commitment to Support the  

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

Conditional Loan Guarantee Commitment to Conditional Loan Guarantee Commitment to Support the Development of New Hampshire's Largest Wind Farm Department of Energy Conditional Loan Guarantee Commitment to Support the Development of New Hampshire's Largest Wind Farm June 21, 2011 - 12:00am Addthis Washington, D.C. -Energy Secretary Steven Chu today announced the offer of a to Granite Reliable Power, LLC to provide up to $135.76 million in loan guarantees for a new wind generation project. The 99 megawatt (MW) project will be located in the central portion of Coos County in northern New Hampshire, approximately 110 miles north of Concord. According to project sponsors, the project will create nearly 200 construction jobs. "This Administration is creating clean energy jobs, in New Hampshire and in

447

Membranes and MEAs for Dry, Hot Operating Conditions  

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

and MEA's and MEA's for Dry, Hot Operating Conditions - Kick off 1 3 Membranes and MEA's for Dry, Hot Operating Conditions DE-FG36-07GO17006 Steve Hamrock 3M Company February 13, 2007 2007 DOE HFCIT Kick-Off Meeting This presentation does not contain any proprietary or confidential information Membranes and MEA's for Dry, Hot Operating Conditions - Kick off 2 3 Overview 3 Timeline * Project start 1/1/07 * Project end 12/31/10 * 0% complete Barriers A. Durability B. Performance DOE Technical Targets (2010) * Durability w/cycling: > 5000 hrs, * Conductivity 0.1 S/cm @120ºC * Cost: $20/m 2 , Budget * Total Project funding $11.4 million - $8.9 million - DOE - $2.5 million - contractor cost share (22%) * Received in FY07: $ 0 * Case Western Reserve Univ. * Colorado School of Mines * University of Detroit Mercy

448

Chapter 18 - Pipeline Vibration and Condition Based Maintenance  

Science Journals Connector (OSTI)

This chapter comprises two integrated parts. The first part of the chapter devotes to a detailed discussion of the mechanism leading to pipeline vibration and the effect of internal and external fluid flow on the pipeline vibration. It summarizes the formulations used for the design of optimal free span length of pipeline segments under different boundary conditions and pipeline operating conditions. Different measures used to mitigate pipeline vibration are also briefly discussed in the section. The procedures of pipeline condition based maintenance (CBM) are discussed in the second part of the chapter using vibration and other corrective maintenance (CM) parameters as asset health indicators. The typical models including P–F curve model, proportional hazard model, and proportional covariate model used to determine the optimal threshold and inspection intervals in CBM are introduced and discussed. The chapter also discusses the optimization of long-term maintenance activities using reliability based preventive maintenance decision-making approach.

Boyun Guo; Shanhong Song; Ali Ghalambor; Tian Ran Lin

2014-01-01T23:59:59.000Z

449

Ising model conformal boundary conditions from open string field theory  

E-Print Network [OSTI]

Given a consistent choice of conformally invariant boundary conditions in a two dimensional conformal field theory, one can construct new consistent boundary conditions by deforming with a relevant boundary operator and flowing to the infrared, or by a marginal deformation. Open string field theory provides a very universal tool to discover and study such new boundary theories. Surprisingly, it also allows one to go in the reverse direction and to uncover solutions with higher boundary entropy. We will illustrate our results on the well studied example of Ising model.

Kudrna, Matej; Schnabl, Martin

2014-01-01T23:59:59.000Z

450

Three-dimensional anisotropic yield condition for Green River shale  

SciTech Connect (OSTI)

A three-dimensional, traversely isotropic yield condition is combined with a plane of weakness to describe the initial yield limit for Green River Shale. This theory is compared to experimental results for two different qualities of oil shale, including true three-dimensional tri-axial stress tests. It is interesting to note that a decrease in the anisotropy of the material with increasing mean stress is predicted by the yield condition and is borne out by the experimental results. For large confining stresses, the material ceases to fail preferentially along the plane of weakness.

Smith, M.B. (Amoco Production Research, Tulsa, OK); Cheatham, J.B. Jr.

1980-12-01T23:59:59.000Z

451

Engineered microorganisms capable of producing target compounds under anaerobic conditions  

SciTech Connect (OSTI)

The present invention is generally provides recombinant microorganisms comprising engineered metabolic pathways capable of producing C3-C5 alcohols under aerobic and anaerobic conditions. The invention further provides ketol-acid reductoisomerase enzymes which have been mutated or modified to increase their NADH-dependent activity or to switch the cofactor preference from NADPH to NADH and are expressed in the modified microorganisms. In addition, the invention provides isobutyraldehyde dehydrogenase enzymes expressed in modified microorganisms. Also provided are methods of producing beneficial metabolites under aerobic and anaerobic conditions by contacting a suitable substrate with the modified microorganisms of the present invention.

Buelter, Thomas (Denver, CO); Meinhold, Peter (Denver, CO); Feldman, Reid M. Renny (San Francisco, CA); Hawkins, Andrew C. (Parker, CO); Urano, Jun (Irvine, CA); Bastian, Sabine (Pasadena, CA); Arnold, Frances (La Canada, CA)

2012-01-17T23:59:59.000Z

452

Gupta-Bleuler and infrared-coherence subsidiary conditions  

Science Journals Connector (OSTI)

It is verified that the contradiction between the Gupta-Bleuler condition k·ain(k)?=0=k·aout(k)?=0 and the natural infrared-coherence condition, lim??0?ain(k)?=-?ieipi[(2?)32 (Ei-p?i·k^)]-1?, is present when the quantized electromagnetic field is coupled to an external classical current. A recent contention of Professor Haller is disproven by displaying the Lehmann-Symanzik-Zimmermann limit of this simple soluble model. Three different resolutions of the dilemma posed by the above contradiction are presented.

Daniel Zwanziger

1978-10-15T23:59:59.000Z

453

Conditional Reliability Modeling of Short-term River Basin Management  

E-Print Network [OSTI]

CONDITIONAL RELIABILITY MODELING OF SHORT-TERM RIVER BASIN MANAGEMENT ASCE Texas Section Spring Meeting 2003 By: A.Andr?s Salazar, Ph.D. Freese and Nichols, Inc. and Ralph A. Wurbs, P.E., Ph.D. Texas A&M University 2 TEXAS WATER AVAILABITY MODEL...-88Year Storage (x 1000 ac-ft) Periods without shortage = 657 out of 672 (97.8%) What is the probability of satisfying demand when reservoir falls below 100,000 ac-ft? 9 CONDITIONAL RELIABILITY Statistical analysis of small sequences. Simulation 1...

Salazar, A.; Wurbs, R. A.

2003-01-01T23:59:59.000Z

454

Optimization of well rates under gas coning conditions  

E-Print Network [OSTI]

production rates under gas caning conditions. This new method applies to an oil reservoir overlain by a large gas cap containing multiple wells. The cases consider have a limit on the maximum field production rate for both oil and gas. It was found... that the optimal p~ion rates are achieved when Eq. 1 is satisfied for any pair of wells i and j: ) I = constant i = 1, . . . , n dqo This condition minimizes the f ield gas production rate when the maximum field production rate for oil is met, and maximizes...

Urbanczyk, Christopher Henry

2012-06-07T23:59:59.000Z

455

Near-surface meteorological conditions associated with active resuspension of dust by wind erosion  

SciTech Connect (OSTI)

The meteorological conditions associated with extreme winds in the lee of the Colorado Rocky Mountains were studied from the viewpoint of dust resuspension and dispersion. Wind, dispersion, temperature, and dew point conditions occurring near the surface were discussed in detail for a selected event. Near-surface wind speeds were compared to observations made at a standard sampling height. These field data were developed to aid in validation and interpretation of wind tunnel observations and application of dispersion models to wind erosion resuspension. Three conclusions can immediately be drawn from this investigation. First, wind storms in nature are quite gusty, with gusts exceeding the mean speed by 50 percent or more. However, wind direction variations are small by comparison. Thus, wind tunnel studies should be able to simulate the large along-flow turbulence, while keeping cross-flow turbulence to a moderate level. This also has an application to the puff modeling of high winds. Puff models normally assume that the along-flow dispersion coefficient is equal to the cross-flow value. This study suggests that the along-flow coefficient should be much larger than its cross-flow counterpart. Another conclusion involves the usual assumption of Pasquill-Gifford stability class D. In the event studied here, the atmosphere was well mixed with near-neutral thermal stability, yet the horizontal dispersion stability class varied from G to A. Thus, an assumption of Class D horizontal dispersion during high winds would not have been valid during this case. A final conclusion involves the widely applied assumption of a logarithmic wind speed profile during high wind events. This study has indicated that such an assumption is appropriate.

Hodgin, C.R.

1982-01-01T23:59:59.000Z

456

Influence of microorganisms on the oxidation state distribution of multivalent actinides under anoxic conditions  

SciTech Connect (OSTI)

The fate and potential mobility of multivalent actinides in the subsurface is receiving increased attention as the DOE looks to cleanup the many legacy nuclear waste sites and associated subsurface contamination. Plutonium, uranium and neptunium are the near-surface multivalent contaminants of concern and are also key contaminants for the deep geologic disposal of nuclear waste. Their mobility is highly dependent on their redox distribution at their contamination source as well as along their potential migration pathways. This redox distribution is often controlled, especially in the near-surface where organic/inorganic contaminants often coexist, by the direct and indirect effects of microbial activity. Under anoxic conditions, indirect and direct bioreduction mechanisms exist that promote the prevalence of lower-valent species for multivalent actinides. Oxidation-state-specific biosorption is also an important consideration for long-term migration and can influence oxidation state distribution. Results of ongoing studies to explore and establish the oxidation-state specific interactions of soil bacteria (metal reducers and sulfate reducers) as well as halo-tolerant bacteria and Archaea for uranium, neptunium and plutonium will be presented. Enzymatic reduction is a key process in the bioreduction of plutonium and uranium, but co-enzymatic processes predominate in neptunium systems. Strong sorptive interactions can occur for most actinide oxidation states but are likely a factor in the stabilization of lower-valent species when more than one oxidation state can persist under anaerobic microbiologically-active conditions. These results for microbiologically active systems are interpreted in the context of their overall importance in defining the potential migration of multivalent actinides in the subsurface.

Reed, Donald Timothy [Los Alamos National Laboratory; Borkowski, Marian [Los Alamos National Laboratory; Lucchini, Jean - Francois [Los Alamos National Laboratory; Ams, David [Los Alamos National Laboratory; Richmann, M. K. [Los Alamos National Laboratory; Khaing, H. [Los Alamos National Laboratory; Swanson, J. S. [Los Alamos National Laboratory

2010-12-10T23:59:59.000Z

457

IONIZATION IN ATMOSPHERES OF BROWN DWARFS AND EXTRASOLAR PLANETS. III. BREAKDOWN CONDITIONS FOR MINERAL CLOUDS  

SciTech Connect (OSTI)

Electric discharges were detected directly in the cloudy atmospheres of Earth, Jupiter, and Saturn, are debatable for Venus, and indirectly inferred for Neptune and Uranus in our solar system. Sprites (and other types of transient luminous events) have been detected only on Earth, and are theoretically predicted for Jupiter, Saturn, and Venus. Cloud formation is a common phenomenon in ultra-cool atmospheres such as in brown dwarf and extrasolar planetary atmospheres. Cloud particles can be expected to carry considerable charges which may trigger discharge events via small-scale processes between individual cloud particles (intra-cloud discharges) or large-scale processes between clouds (inter-cloud discharges). We investigate electrostatic breakdown characteristics, like critical field strengths and critical charge densities per surface, to demonstrate under which conditions mineral clouds undergo electric discharge events which may trigger or be responsible for sporadic X-ray emission. We apply results from our kinetic dust cloud formation model that is part of the DRIFT-PHOENIX model atmosphere simulations. We present a first investigation of the dependence of the breakdown conditions in brown dwarf and giant gas exoplanets on the local gas-phase chemistry, the effective temperature, and primordial gas-phase metallicity. Our results suggest that different intra-cloud discharge processes dominate at different heights inside mineral clouds: local coronal (point discharges) and small-scale sparks at the bottom region of the cloud where the gas density is high, and flow discharges and large-scale sparks near, and maybe above, the cloud top. The comparison of the thermal degree of ionization and the number density of cloud particles allows us to suggest the efficiency with which discharges will occur in planetary atmospheres.

Helling, Ch.; Jardine, M.; Stark, C. [SUPA, School of Physics and Astronomy, University of St. Andrews, St. Andrews KY16 9SS (United Kingdom); Diver, D., E-mail: ch@leap2010.eu [SUPA, School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ (United Kingdom)

2013-04-20T23:59:59.000Z

458

Property:Optimum Marine/Riverline Conditions | Open Energy Information  

Open Energy Info (EERE)

Marine/Riverline Conditions Marine/Riverline Conditions Jump to: navigation, search Property Name Optimum Marine/Riverline Conditions Property Type Text Pages using the property "Optimum Marine/Riverline Conditions" Showing 25 pages using this property. (previous 25) (next 25) M MHK Technologies/Aegir Dynamo + Proprietary MHK Technologies/AirWEC + 15kW per meter of wave front or greater MHK Technologies/Aquantis + The Aquantis Current Plane C Plane technology is a marine current turbine designed to extract the kinetic energy from the flow and is capable of achieving reliable competitively priced base load power generation The technology is suitable for both steady marine currents and tidal currents although there are system differences and specific arraying and deployment requirements for each Aquantis is designed to harness the energy from the Gulf Stream and other steady marine currents around the world Aquantis deployment is projected to be cost competitive with thermal power generation when CO2 emissions and other environmental costs are accounted for

459

LEVY PROCESS CONDITIONED BY ITS HEIGHT PROCESS June 11, 2011  

E-Print Network [OSTI]

-called exploration process defined in [10], T0 is the hitting time of 0 for X. When the process X is a compensatedL´EVY PROCESS CONDITIONED BY ITS HEIGHT PROCESS June 11, 2011 MATHIEU RICHARD Abstract. In the present work, we consider spectrally positive L´evy processes (Xt, t 0) not drifting to + and we

460

The Effect of Grinding on Grinding Wheel Condition  

E-Print Network [OSTI]

The Effect of Grinding on Grinding Wheel Condition Prasann B. Handigund, Melissa Hasenbank Michele Process Abrasive wear Abrasive pull-out Wheel diameter shrinks Chip accumulation Surface finish Dimensional accuracy Grinding force Temperature #12;Wheel Wear and Self-Dressing Wear Modes: -Attritious wear

Endres. William J.

Note: This page contains sample records for the topic "worst-case conditions occurring" 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

Variational necessary and sufficient stability conditions for inviscid shear flow  

Science Journals Connector (OSTI)

...University of Texas at Austin, , Austin, TX 78712, USA A necessary and sufficient condition...where the velocity profile is assumed to be monotonic and analytic. It is shown...for continuous spectra and is applicable to other stability problems of infinite-dimensional...

2014-01-01T23:59:59.000Z

462

Condition Monitoring of Electrical Power Plant Components During Operational  

E-Print Network [OSTI]

the condition monitoring of a gas turbine during start-up transients. * Corresponding author. E-mail: piero reconstruction, AAKR, Haar transform, Gas turbine, Start-up transients LIST OF SYMBOLS AND ACRONYMS AAKR Auto at the present time t ^ncx t Reconstruction of obs x t )(tx Residuals between obs x t and ^ncx t - Matrix

Paris-Sud XI, Université de

463

Fear of losing money? Aversive conditioning with secondary reinforcers  

E-Print Network [OSTI]

Fear of losing money? Aversive conditioning with secondary reinforcers M. R. Delgado,1 C. D Department of Psychology, and 3 Center for Neural Science, New York University, New York, NY 10003, USA Money behavior and laboratory studies, money has been shown to influence appetitive or reward learning

Phelps, Elizabeth

464

Platform Based Design for Automotive Sensor Conditioning L. Fanucci1  

E-Print Network [OSTI]

to improve system performance while minimizing time-to-market.. The platform is composed by an analog front prototyping. A case study is presented concerning the conditioning of a Gyro yaw rate sensor for automotive the electronic system design as sequence of several abstraction layers (each one can be considered as a platform

Paris-Sud XI, Université de

465

Study of ash deposition during coal combustion under oxyfuel conditions  

Science Journals Connector (OSTI)

This paper presents a comparative study on ash deposition of two selected coals, Russian coal and lignite, under oxyfuel (O2/CO2) and air combustion conditions. The comparison is based on experimental results and subsequent evaluation of the data and observed trends. Deposited as well as remaining filter ash (fine ash) samples were subjected to XRD and ICP analyses in order to study the chemical composition and mineral transformations undergone in the ash under the combustion conditions. The experimental results show higher deposition propensities under oxyfuel conditions; the possible reasons for this are investigated by analyzing the parameters affecting the ash deposition phenomena. Particle size seems to be larger for the Russian coal oxy-fired ash, leading to increased impaction on the deposition surfaces. The chemical and mineralogical compositions do not seem to differ significantly between air and oxyfuel conditions. The differences in the physical properties of the flue gas between air combustion and oxyfuel combustion, e.g. density, viscosity, molar heat capacity, lead to changes in the flow field (velocities, particle trajectory and temperature) that together with the ash particle size shift seem to play a role in the observed ash deposition phenomena.

L. Fryda; C. Sobrino; M. Glazer; C. Bertrand; M. Cieplik

2012-01-01T23:59:59.000Z

466

Condition Monitoring of Wind Turbines Based on Amplitude Demodulation  

E-Print Network [OSTI]

Condition Monitoring of Wind Turbines Based on Amplitude Demodulation Yassine Amirat University. In order to make wind turbine reliable and competitive, it is important to reduce the operational-stationary behavior. Index Terms--Wind turbine, Fault Detection, Bearings, Signal Processing, Amplitude Modulation I

Paris-Sud XI, Université de

467

An Investigation of Optimal Vehicle Maneuvers for Different Road Conditions  

E-Print Network [OSTI]

vehicle maneuvers in time-critical situations have emerged as powerful tools during the past years. EvenAn Investigation of Optimal Vehicle Maneuvers for Different Road Conditions Bj¨orn Olofsson Lund, Sweden, firstname.lastname@control.lth.se. Department of Electrical Engineering, Link

468

Topological order in Josephson junction ladders with Mobius boundary conditions  

E-Print Network [OSTI]

We propose a CFT description for a closed one-dimensional fully frustrated ladder of quantum Josephson junctions with Mobius boundary conditions, in particular we show how such a system can develop topological order. Such a property is crucial for its implementation as a "protected" solid state qubit.

G. Cristofano; V. Marotta; A. Naddeo

2005-03-22T23:59:59.000Z

469

UNSUPERVISED CONDITION CHANGE DETECTION IN LARGE DIESEL ENGINES  

E-Print Network [OSTI]

diesel engines and stationary power plants. The possibility of early detecting small defects priorUNSUPERVISED CONDITION CHANGE DETECTION IN LARGE DIESEL ENGINES Niels Henrik Pontoppidan and Jan detection in large diesel engines from acoustical emis- sion sensor signal and compared to more classical

470

Periodic Boundary Conditions for Dislocation Dynamics Simulations in Three Dimensions  

E-Print Network [OSTI]

, the choice of initial configurations compatible with PBC and a consistent treatment of image stress of PBC for large-scale DD simulations in 3D. INTRODUCTION Treatment of boundary conditions or external interface (surface, crack, grain or phase boundary, etc.), it is necessary to account for stress

Cai, Wei

471

Improved Moving Puncture Gauge Conditions for Compact Binary Evolutions  

E-Print Network [OSTI]

Robust gauge conditions are critically important to the stability and accuracy of numerical relativity (NR) simulations involving compact objects. Most of the NR community use the highly robust---though decade-old---moving-puncture (MP) gauge conditions for such simulations. It has been argued that in binary black hole (BBH) evolutions adopting this gauge, noise generated near adaptive-mesh-refinement (AMR) boundaries does not converge away cleanly with increasing resolution, severely limiting gravitational waveform accuracy at computationally feasible resolutions. We link this noise to a sharp (short-wavelength), initial outgoing gauge wave crossing into progressively lower resolution AMR grids, and present improvements to the standard MP gauge conditions that focus on stretching, smoothing, and more rapidly settling this outgoing wave. Our best gauge choice greatly reduces gravitational waveform noise during inspiral, yielding less fluctuation in convergence order and $\\sim 40%$ lower waveform phase and amplitude errors at typical resolutions. Noise in other physical quantities of interest is also reduced, and constraint violations drop by more than an order of magnitude. We expect these improvements will carry over to simulations of all types of compact binary systems, as well as other $N$+1 formulations of gravity for which MP-like gauge conditions can be chosen.

Zachariah B. Etienne; John G. Baker; Vasileios Paschalidis; Bernard J. Kelly; Stuart L. Shapiro

2014-10-06T23:59:59.000Z

472

The Measured Energy Impact of Infiltration Under Dynamic Conditions  

E-Print Network [OSTI]

, the heat transfer process is a complicated non-linear process, and neither the temperature nor the air flow rate is constant. Therefore, the validity of the steady-state methodology should be proved for dynamic condition. As a preliminary step, dynamic...

Liu, M.; Claridge, D. E.

473

NOAA Technical Report NMFS 24 Temperature Conditions in  

E-Print Network [OSTI]

24 NOAA Technical Report NMFS 24 Temperature Conditions in the Cold Pool 1977-81: A Comparison. surveillance of foreign fishing off United States coastal waters, and the development and enforcement fishery problems. technical reports of general interest intended (0 aid conservation and management

474

Experimental investigation of single carbon compounds under hydrothermal conditions  

E-Print Network [OSTI]

Experimental investigation of single carbon compounds under hydrothermal conditions Jeffrey S; accepted in revised form 8 September 2005 Abstract The speciation of carbon in subseafloor hydrothermal reactant during the abiotic synthesis of reduced carbon compounds via Fischer­Tropsch-type processes

Rhoads, James

475

Improving Conditions for Green Building Construction in North  

E-Print Network [OSTI]

green building a standard practice throughout North America. · In 2011, the CEC formed the TrilateralImproving Conditions for Green Building Construction in North America QUEST 2012 INTERNATIONAL Green Building Task Force, comprising North American leaders from the green building industry

476

Hydrologic conditions controlling runoff generation immediately after wildfire  

E-Print Network [OSTI]

Hydrologic conditions controlling runoff generation immediately after wildfire Brian A. Ebel,1 John and hydraulic properties of soil, hydrologic states, and an ash layer immediately following wildfire. The field site is within the area burned by the 2010 Fourmile Canyon Fire in Colorado, USA. Physical

477

Integrating ducts into the conditioned space: Successes and challenges  

SciTech Connect (OSTI)

In residential and light commercial construction in the United States, heating and cooling ducts are often located outside the thermal or pressure boundary of the conditioned space. This location is selected for aesthetic and space requirement reasons. Typical duct locations include attics, above dropped ceilings, crawlspaces, and attached garages. A wide body of literature has found that distribution system conduction and air leakage can cause 30-40% energy losses before cooling and heating air reaches the conditioned space. Recent innovative attempts at locating ducts in the conditioned space have had mixed results in terms of improving duct efficiency. Some of these strategies include cathedralizing attics (sealing and insulating at the attic roofline) and locating ducts in interstitial spaces. This paper reviews modeling studies that suggest substantial savings could be realized from these strategies and presents field measurements which reveal that construction planning and execution errors can prevent these strategies from being widely applied or from being effective when they are applied. These types of problems will need to be overcome for effective integration of ducts into the conditioned space.

Siegel, Jeffrey; Walker, Iain

2004-05-01T23:59:59.000Z

478

UCPNetworks: A Directed Graphical Representation of Conditional Utilities Craig Boutilier  

E-Print Network [OSTI]

UCP­Networks: A Directed Graphical Representation of Conditional Utilities Craig Boutilier@cs.bgu.ac.il Abstract We propose a directed graphical representation of util­ ity functions, called UCP­networks. The network de­ composes a utility function into a number of additive factors, with the directionality

Brafman, Ronen

479

Petrov type I Condition and Dual Fluid Dynamics  

E-Print Network [OSTI]

Recently Lysov and Strominger [arXiv:1104.5502] showed that imposing Petrov type I condition on a $(p+1)$-dimensional timelike hypersurface embedded in a $(p+2)$-dimensional vacuum Einstein gravity reduces the degrees of freedom in the extrinsic curvature of the hypersurface to that of a fluid on the hypersurface, and that the leading-order Einstein constraint equations in terms of the mean curvature of the embedding give the incompressible Navier-Stokes equations of the dual fluid. In this paper we show that the non-relativistic fluid dual to vacuum Einstein gravity does not satisfy the Petrov type I condition at next order, unless additional constraint such as the irrotational condition is added. In addition, we show that this procedure can be inversed to derive the non-relativistic hydrodynamics with higher order corrections through imposing the Petrov type I condition, and that some second order transport coefficients can be extracted, but the dual "Petrov type I fluid" does not match the dual fluid constructed from the geometry of vacuum Einstein gravity in the non-relativistic limit. We discuss the procedure both on the finite cutoff surface via the non-relativistic hydrodynamic expansion and on the highly accelerated surface via the near horizon expansion.

Rong-Gen Cai; Li Li; Qing Yang; Yun-Long Zhang

2014-03-17T23:59:59.000Z

480

Heat Conduction with Flux Condition on a Free Patch  

SciTech Connect (OSTI)

A new free boundary or free patch problem for the heat equation is presented. In the problem a nonlinear heat flux condition is prescribed on a free portion of the boundary, the patch, the position of which depends on the solution. The existence of a weak solution is established using the theory of set-valued pseudo monotone operators.

Kuttler, Kenneth L. [Department of Mathematics, Brigham Young University, Provo, UT 84602 (United States)], E-mail: klkuttler@math.byu.edu; Shillor, Meir [Department of Mathematics and Statistics, Oakland University, Rochester, MI 48309 (United States)], E-mail: shillor@oakland.edu

2004-08-15T23:59:59.000Z

Note: This page contains sample records for the topic "worst-case conditions occurring" 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.


481

The Matrix Converter Drive Performance Under Abnormal Input Voltage Conditions  

E-Print Network [OSTI]

that generates variable magnitude variable frequency output voltage from the ac utility line. It has high power voltage disturbance related performance issues of the MC drive. Since the MC is a direct frequencyThe Matrix Converter Drive Performance Under Abnormal Input Voltage Conditions Jun-Koo Kang

Hava, Ahmet

482

Conditional Random Fields for Morphological Analysis of Wireless ECG Signals  

E-Print Network [OSTI]

Conditional Random Fields for Morphological Analysis of Wireless ECG Signals Annamalai Natarajan recording of ECG signals. This capability has diverse applications in the study of human health and behavior present a novel approach to the problem of extracting the morphological structure of ECG signals based

Massachusetts at Amherst, University of

483

CONDITIONAL EXTREMES AND NEAREXTREMES: CONCEPTS, ASYMPTOTIC THEORY, AND ECONOMIC  

E-Print Network [OSTI]

CONDITIONAL EXTREMES AND NEAR­EXTREMES: CONCEPTS, ASYMPTOTIC THEORY, AND ECONOMIC APPLICATIONS on Graduate Studies: iii #12; Abstract This dissertation develops the theory of extremal (near­extreme and extreme) quantile re­ gression: estimation, inference, and applications in economics. In particular

Gabrieli, John

484

Segmentation Conditional Random Fields (SCRFs): A New Approach for  

E-Print Network [OSTI]

Segmentation Conditional Random Fields (SCRFs): A New Approach for Protein Fold Recognition Yan Liu, University of Pittsburgh, PA, USA vanathi@cbmi.pitt.edu Abstract. Protein fold recognition is an important.e. the supersecondary structures or protein folds. There has been significant work on predicting some well-defined types

Carbonell, Jaime

485

Damage of Elastomeric Matrix Composites (EMC-rubbers) Under Static Loading Conditions: Experimental and Numerical Study  

SciTech Connect (OSTI)

Elastomeric matrix composites (EMC-rubbers) are considered as isotropic hyper elastic incompressible materials under static loading conditions. As a rubber material element cannot be extended to an infinite stretch ratio, a damage mechanism at large strain is considered. The phenomenon of cavitation plays an important role in the damage of EMCs and influences the toughening mechanism of rubber-modified plastics. Indeed, cavitation in elastomers is thought to be initiated from flaws, which grow primarily due to a hydrostatic tensile stress and ahead of the crack; there will not only be a high stress perpendicular to the plane of the crack but also significant stress components in the other direction. However, there exists historically much discussion on the evolution of the cavitation in elastomers under monotonic and/or static solicitation. Mainly, cavitation instability occurs when the stress levels are sufficiently high so that the void expansion rate becomes infinitely large. Many research works have been performed to understand the effects of rubber cavitation on toughening of plastics. In fact, the cavitation phenomenon is not well known in detail. The most popular idea states that the cavitation is related to the existence of the gas bubbles trapped in the material during the production stage and the growing of the cavities would then be the result of the growing gas bubbles. Further, instable failure mechanism at the end of the cavitation is not well known too.

Ayari, F. [Laboratory of Mechanics, College of Science and Technology, 1008 Montfleury, Tunis (Tunisia); Supmeca/LISMMA-Paris, School of Mechanical and Manufacturing Engineering (France); Bayraktar, E. [Supmeca/LISMMA-Paris, School of Mechanical and Manufacturing Engineering (France); Zghal, A. [Laboratory of Mechanics, College of Science and Technology, 1008 Montfleury, Tunis (Tunisia)

2011-01-17T23:59:59.000Z

486

Hanford Double-Shell Tank Extent-of-Condition Review - 15498  

SciTech Connect (OSTI)

During routine visual inspections of Hanford double-shell waste tank 241-AY-102 (AY-102), anomalies were identified on the annulus floor which resulted in further evaluations. Following a formal leak assessment in October 2012, Washington River Protection Solutions, LLC (WRPS) determined that the primary tank of AY-102 was leaking. A formal leak assessment, documented in RPP-ASMT-53793, Tank 241-AY-102 Leak Assessment Report, identified first-of-a-kind construction difficulties and trial-and-error repairs as major contributing factors to tank failure.1 To determine if improvements in double-shell tank (DST) construction occurred after construction of tank AY-102, a detailed review and evaluation of historical construction records was performed for Hanford’s remaining twenty-seven DSTs. Review involved research of 241 boxes of historical project documentation to better understand the condition of the Hanford DST farms, noting similarities in construction difficulties/issues to tank AY-102. Information gathered provides valuable insight regarding construction difficulties, future tank operations decisions, and guidance of the current tank inspection program. Should new waste storage tanks be constructed in the future, these reviews also provide valuable lessons-learned.

Johnson, J. M.; Baide, D. D.; Barnes, T. J.; Boomer, K. D.; Gunter, J. R.; Venetz, T. J.

2014-11-19T23:59:59.000Z

487

Performance of the Fluidized Bed Steam Reforming Product Under Hydraulically Unsaturated Conditions  

SciTech Connect (OSTI)

Currently, several candidates for secondary waste immobilization at the Hanford site in the State of Washington, USA are being considered. To demonstrate the durability of the product in the unsaturated Integrated Disposal Facility (IDF) at the site, a series of tests have been performed one of the candidate materials using the Pressurized Unsaturated Flow (PUF) system. The material that was tested was the Fluidized Bed Steam Reformer (FBSR) granular product and the granular product encapsulated in a geopolymer matrix. The FBSR product is composed primarily of an insoluble sodium aluminosilicate matrix with the dominant phases being feldspathoid minerals mostly nepheline, sodalite, and nosean. The PUF test method allows for the accelerated weathering of materials, including radioactive waste forms, under hydraulically unsaturated conditions, thus mimicking the open-flow and transport properties that most likely will be present at the IDF. The experiments show a trend of decreasing tracer release as a function of time for several of the elements released from the material including Na, Si, Al, and Cs. However, some of the elements, notably I and Re, show a steady release throughout the yearlong test. This result suggests that the release of these minerals from the sodalite cage occurs at a different rate compared with the dissolution of the predominant nepheline phase.

Neeway, James J.; Qafoku, Nikolla; Williams, Benjamin D.; Rod, Kenton A.; Bowden, Mark E.; Brown, Christopher F.; Pierce, Eric M.

2014-05-01T23:59:59.000Z

488

Modeling of hydrologic conditions and solute movement in processed oil shale waste embankments under simulated climatic conditions  

SciTech Connect (OSTI)

The scope of this program is to study interacting hydrologic, geotechnical, and chemical factors affecting the behavior and disposal of combusted processed oil shale. The research combines bench-scale testing with large scale research sufficient to describe commercial scale embankment behavior. The large scale approach was accomplished by establishing five lysimeters, each 7.3 {times} 3.0 {times} 3.0 m deep, filled with processed oil shale that has been retorted and combusted by the Lurgi-Ruhrgas (Lurgi) process. Approximately 400 tons of Lurgi processed oil shale waste was provided by RBOSC to carry out this study. Research objectives were designed to evaluate hydrologic, geotechnical, and chemical properties and conditions which would affect the design and performance of large-scale embankments. The objectives of this research are: assess the unsaturated movement and redistribution of water and the development of potential saturated zones and drainage in disposed processed oil shale under natural and simulated climatic conditions; assess the unsaturated movement of solubles and major chemical constituents in disposed processed oil shale under natural and simulated climatic conditions; assess the physical and constitutive properties of the processed oil shale and determine potential changes in these properties caused by disposal and weathering by natural and simulated climatic conditions; assess the use of previously developed computer model(s) to describe the infiltration, unsaturated movement, redistribution, and drainage of water in disposed processed oil shale; evaluate the stability of field scale processed oil shale solid waste embankments using computer models.

Reeves, T.L.; Turner, J.P.; Hasfurther, V.R.; Skinner, Q.D.

1992-06-01T23:59:59.000Z

489

Modeling of hydrologic conditions and solute movement in processed oil shale waste embankments under simulated climatic conditions  

SciTech Connect (OSTI)

The scope of this program is to study interacting hydrologic, geotechnical, and chemical factors affecting the behavior and disposal of combusted processed oil shale. The research combines bench-scale testing with large scale research sufficient to describe commercial scale embankment behavior. The large scale approach was accomplished by establishing five lysimeters, each 7.3 [times] 3.0 [times] 3.0 m deep, filled with processed oil shale that has been retorted and combusted by the Lurgi-Ruhrgas (Lurgi) process. Approximately 400 tons of Lurgi processed oil shale waste was provided by RBOSC to carry out this study. Research objectives were designed to evaluate hydrologic, geotechnical, and chemical properties and conditions which would affect the design and performance of large-scale embankments. The objectives of this research are: assess the unsaturated movement and redistribution of water and the development of potential saturated zones and drainage in disposed processed oil shale under natural and simulated climatic conditions; assess the unsaturated movement of solubles and major chemical constituents in disposed processed oil shale under natural and simulated climatic conditions; assess the physical and constitutive properties of the processed oil shale and determine potential changes in these properties caused by disposal and weathering by natural and simulated climatic conditions; assess the use of previously developed computer model(s) to describe the infiltration, unsaturated movement, redistribution, and drainage of water in disposed processed oil shale; evaluate the stability of field scale processed oil shale solid waste embankments using computer models.

Reeves, T.L.; Turner, J.P.; Hasfurther, V.R.; Skinner, Q.D.

1992-06-01T23:59:59.000Z

490

Date | 1Refrigeration and Air Conditioning EMA Education and Training Date | 2Refrigeration and Air Conditioning EMA Education and Training  

E-Print Network [OSTI]

Date | 1Refrigeration and Air Conditioning EMA Education and Training #12;Date | 2Refrigeration operating pressure (MOP) 5. De-humidifying (Te control) 6. Defrost funtions 7. Loss of charge detection (LOC control) 6. Defrost funtions 7. Loss of charge detection (LOC) 8. Bleed function 9. Sensor placement tips

Oak Ridge National Laboratory

491

LOSS-OF-COOLANT ACIDENT SIMULATIONS IN THE NATIONAL RESEARCH UNIVERSAL REACTOR  

SciTech Connect (OSTI)

Pressurized water reactor loss-of-coolant accident (LOCA) phenomena are being simulated with a series of experiments in the U-2 loop of the National Research Universal Reactor at Chalk River, Ontario, Canada. The first of these experiments includes up to 45 parametric thermal-hydraulic tests to establish the relationship among the reflood delay time of emergency coolant, the reflooding rate, and the resultant fuel rod cladding peak temperature. Subsequent experiments establish the fuel rod failure characteristics at selected peak cladding temperatures. Fuel rod cladding pressurization simulates high burnup fission gas pressure levels of modern PWRs. This document contains both an experiment overview of the LOCA simulation program and a review of the safety analyses performed by Pacific Northwest Laboratory (PNL) to define the expected operating conditions as well as to evaluate the worst case operating conditions. The primary intent of this document is to supply safety information required by the Chalk River Nuclear Laboratories (CRNL), to establish readiness to proceed from one test phase to the next and to establish the overall safety of the experiment. A hazards review summarizes safety issues, normal operation and three worst case accidents that have been addressed during the development of the experiment plan.

Bennett, W D; Goodman, R L; Heaberlin, S W; Hesson, G M; Nealley, C; Kirg, L L; Marshall, R K; McNair, G W; Meitzler, W D; Neally, G W; Parchen, L J; Pilger, J P; Rausch, W N; Russcher, G E; Schreiber, R E; Wildung, N J

1981-02-01T23:59:59.000Z

492

Durable Catalysts for Fuel Cell Protection during Transient Conditions  

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

Durable Catalysts for Fuel Cell Protection Durable Catalysts for Fuel Cell Protection during Transient Conditions (Topic 1c) Radoslav Atanasoski DOE/3M Award DE-EE0000456 Kickoff meeting for new DOE Fuel Cell projects from solicitation DE-PS36-08GO98009 and lab call DE-PS36-08GO98010 Washington DC, Sept. 30, 2009 2 Timeline * Project start date: August 1, 2009 * Project end date: July 31, 2013 * Percent complete: ~ 5% Collaborations * Dalhousie University (subcontractor) - Dr. David Stevens; High-throughput catalyst synthesis and basic characterization * Oak Ridge National Lab (subcontractor) - Dr. Karren More; TEM Characterization * 3M Team: George Vernstrom Greg Haugen Mark Debe Radoslav Atanasoski Project Overwiew Durable Catalysts for Transient Conditions- July 01, 2009  Barriers C. Electrode Performance

493

Department of Energy Offers Conditional Commitment for Loan Guarantee to  

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

Loan Loan Guarantee to Support Solar Generation Project in Nevada Department of Energy Offers Conditional Commitment for Loan Guarantee to Support Solar Generation Project in Nevada May 19, 2011 - 12:00am Addthis Washington D.C. --- U.S. Energy Secretary Steven Chu today announced the offer of a conditional commitment for a $737 million loan guarantee to support a 110 megawatt molten salt concentrating solar power (CSP) tower generating facility. The Crescent Dunes Solar Energy Project, sponsored by SolarReserve, LLC, will be the first of its kind in the United States and the tallest molten salt tower in the world. Located 14 miles northwest of Tonopah, Nevada on 2,250 acres leased from the Bureau of Land Management, the company anticipates the facility will create 600

494

Matrix factorisations for rational boundary conditions by defect fusion  

E-Print Network [OSTI]

A large class of two-dimensional $\\mathcal{N}=(2,2)$ superconformal field theories can be understood as IR fixed-points of Landau-Ginzburg models. In particular, there are rational conformal field theories that also have a Landau-Ginzburg description. To understand better the relation between the structures in the rational conformal field theory and in the Landau-Ginzburg theory, we investigate how rational B-type boundary conditions are realised as matrix factorisations in the $SU(3)/U(2)$ Grassmannian Kazama-Suzuki model. As a tool to generate the matrix factorisations we make use of a particular interface between the Kazama-Suzuki model and products of minimal models, whose fusion can be realised as a simple functor on ring modules. This allows us to formulate a proposal for all matrix factorisations corresponding to rational boundary conditions in the $SU(3)/U(2)$ model.

Behr, Nicolas

2014-01-01T23:59:59.000Z

495

Flow boundary conditions for chain-end adsorbing polymer blends  

E-Print Network [OSTI]

Using the phenol-terminated polycarbonate blend as an example, we demonstrate that the hydrodynamic boundary conditions for a flow of an adsorbing polymer melt are extremely sensitive to the structure of the epitaxial layer. Under shear, the adsorbed parts (chain ends) of the polymer melt move along the equipotential lines of the surface potential whereas the adsorbed additives serve as the surface defects. In response to the increase of the number of the adsorbed additives the surface layer becomes thinner and solidifies. This results in a gradual transition from the slip to the no-slip boundary condition for the melt flow, with a non-monotonic dependence of the slip length on the surface concentration of the adsorbed ends.

X. Zhou; D. Andrienko; L. Delle Site; K. Kremer

2005-07-18T23:59:59.000Z

496

Conditions for collection efficiencies greater than one hundred percent  

SciTech Connect (OSTI)

An account is given for the conditions under which the collection efficiency is hydrogenated amorphous silicon pin-diodes increases to values larger than 100%. By specific bias illumination through the p-side bias generated photocarriers are collected under certain probe beam conditions of the collection efficiency measurement, leading to apparent large collection efficiencies. By numerical modeling they investigated the influence of the diode thickness, bias photon flux and probe absorption coefficient as well as applied voltage for possible sensor applications which may utilize this optical amplifying principle. The alternative with bias light through the n-side and probe light through the p-side is also explored. Collection efficiency values determined by the photogating of bias generated holes become only slightly larger than 100% in contrast to the electron case where values in excess of 3,000% are presented.

Brueggemann, R.; Zollondz, J.H.; Main, C.; Gao, W.

1997-07-01T23:59:59.000Z

497

Consistency conditions for orientifolds and D-manifolds  

Science Journals Connector (OSTI)

We study superstrings with orientifold projections and with generalized open string boundary conditions (D branes). We find two types of consistency condition, one related to the algebra of Chan-Paton factors and the other to cancellation of divergences. One consequence is that the Dirichlet five branes of the type I theory carry a symplectic gauge group, as required by string duality. As another application we study the type I theory on a K3 Z2 orbifold, finding a family of consistent theories with various unitary and symplectic subgroups of U(16)×U(16). We argue that the K3 orbifold with spin connection embedded in gauge connection corresponds to an interacting conformal field theory in the type I theory.

Eric G. Gimon and Joseph Polchinski

1996-07-15T23:59:59.000Z

498

Simulating realistic imaging conditions for in situ liquid microscopy  

SciTech Connect (OSTI)

In situ transmission electron microscopy enables the imaging of biological cells, macromolecular protein complexes, nanoparticles, and other systems in a near-native environment. In order to improve interpretation of image contrast features and also predict ideal imaging conditions ahead of time, new virtual electron microscopic techniques are needed. A technique for virtual fluid-stage high-angle annular dark-field scanning transmission electron microscopy with the multislice method is presented that enables the virtual imaging of model fluid-stage systems composed of millions of atoms. The virtual technique is exemplified by simulating images of PbS nanoparticles under different imaging conditions and the results agree with previous experimental findings. General insight is obtained on the influence of the effects of fluid path length, membrane thickness, nanoparticle position, defocus and other microscope parameters on attainable image quality.

Welch, David A.; Faller, Roland; Evans, James E.; Browning, Nigel D.

2013-12-01T23:59:59.000Z

499

Wall conditioning and power balance for spheromak plasmas in SSPX  

Science Journals Connector (OSTI)

We report here results from power balance measurements for ohmically heated plasmas in the sustained spheromak physics experiment. The plasma is formed inside a close-fitting tungsten-coated copper shell; wall conditioning by baking, glow discharge cleaning (GDC), Ti gettering, and helium shot conditioning produces clean plasmas (Zeff<2.5) and reduces impurity radiation to a small fraction of the input energy, except when the molybdenum divertor plate has been overheated. We find that most of the input energy is lost by conduction to the walls (the divertor plate and the inner electrode in the coaxial source region). Recently, carborane was added during GDC to boronize the plasma-facing surfaces, but little benefit was obtained.

D.N. Hill; R.D. Wood; R. Bulmer; H.S. McLean; D. Ryutov; B.W. Stallard; S. Woodruff

2003-01-01T23:59:59.000Z

500

Lithium bromide absorption chiller passes gas conditioning field test  

SciTech Connect (OSTI)

A lithium bromide absorption chiller has been successfully used to provide refrigeration for field conditioning of natural gas. The intent of the study was to identify a process that could provide a moderate level of refrigeration necessary to meet the quality restrictions required by natural-gas transmission companies, minimize the initial investment risk, and reduce operating expenses. The technology in the test proved comparatively less expensive to operate than a propane refrigeration plant. Volatile product prices and changes in natural-gas transmission requirements have created the need for an alternative to conventional methods of natural-gas processing. The paper describes the problems with the accumulation of condensed liquids in pipelines, gas conditioning, the lithium bromide absorption cycle, economics, performance, and operating and maintenance costs.

Lane, M.J.; Huey, M.A. [Nicol and Associates, Richardson, TX (United States)

1995-07-31T23:59:59.000Z