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Note: This page contains sample records for the topic "negative daily imbalances" 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.


1

Earth’s Energy Imbalance  

Science Journals Connector (OSTI)

Climate change from increased greenhouse gases arises from a global energy imbalance at the top of the atmosphere (TOA). TOA measurements of radiation from space can track changes over time but lack absolute accuracy. An inventory of energy ...

Kevin E. Trenberth; John T. Fasullo; Magdalena A. Balmaseda

2014-05-01T23:59:59.000Z

2

NREL: Transmission Grid Integration - Energy Imbalance Markets  

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

Energy Imbalance Markets The anticipated growth of variable renewable generation, such as solar and wind power, in the West has raised concerns about how system operators will...

3

Energy Imbalance Markets (Fact Sheet)  

SciTech Connect

The anticipated increase in variable renewable generation, such as wind and solar power, over the next several years has raised concerns about how system operators will maintain balance between electricity production and demand in the Western Interconnection, especially in its smaller balancing authority areas (BAAs). Given renewable portfolio standards in the West, it is possible that more than 50 gigawatts of wind capacity will be installed by 2020. Significant quantities of solar generation are likely to be added as well. Meanwhile, uncertainties about future load growth and challenges siting new transmission and generation resources may add additional stresses on the Western Interconnection of the future. One proposed method of addressing these challenges is an energy imbalance market (EIM). An EIM is a means of supplying and dispatching electricity to balance fluctuations in generation and load. It aggregates the variability of generation and load over multiple balancing areas (BAs).

Not Available

2012-09-01T23:59:59.000Z

4

Energy Imbalance Markets (Fact Sheet), NREL (National Renewable...  

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

of the future. One proposed method of addressing these challenges is an energy imbalance market (EIM). An EIM is a means of supplying and dispatching electricity to...

5

Global Imbalances: Is Germany the new China? A Skeptical View  

E-Print Network (OSTI)

Global Imbalances: Is Germany the new China? A Skepticalpatterns of China and Germany. We point out that China'srecent years resembles that of Germany’s. Yet, an important

Aizenman, Joshua; Sengupta, Rajeswari

2010-01-01T23:59:59.000Z

6

Itinerant ferromagnetism in an interacting Fermi gas with mass imbalance  

Science Journals Connector (OSTI)

We study the emergence of itinerant ferromagnetism in an ultracold atomic gas with a variable mass ratio between the up- and down-spin species. Mass imbalance breaks the SU(2) spin symmetry, leading to a modified Stoner criterion. We first elucidate the phase behavior in both the grand canonical and canonical ensembles. Second, we apply the formalism to a harmonic trap to demonstrate how a mass imbalance delivers unique experimental signatures of ferromagnetism. These could help future experiments to better identify the putative ferromagnetic state. Furthermore, we highlight how a mass imbalance suppresses the three-body loss processes that handicap the formation of a ferromagnetic state. Finally, we study the time-dependent formation of the ferromagnetic phase following a quench in the interaction strength.

C. W. von Keyserlingk and G. J. Conduit

2011-05-24T23:59:59.000Z

7

Acceptable Daily Intake (ADI)  

Science Journals Connector (OSTI)

Abstract The acceptable daily intake (ADI) is commonly defined as the maximum amount of a chemical to which a person can be exposed, on a daily basis over an extended period of time, usually without suffering a deleterious effect. It represents a daily intake level of a chemical in humans that is associated with minimal or no risk of adverse effects, and if the ingestion exceeds, this amount may cause toxic effects. It is a numerical estimate of daily oral exposure to the human population, including sensitive subgroups such as children, that is not likely to cause harmful effects during a lifetime. The ADI is expressed in milligrams of the chemical, as it appears in the food, per kilogram of body weight per day (mg kg?1 day?1).

J. Chilakapati; H.M. Mehendale

2014-01-01T23:59:59.000Z

8

IMPROVING ELECTRIC FRAUD DETECTION USING CLASS IMBALANCE STRATEGIES  

E-Print Network (OSTI)

IMPROVING ELECTRIC FRAUD DETECTION USING CLASS IMBALANCE STRATEGIES Mat´ias Di Martino, Federico of fraud makes this a very complex task. In this paper we present a fraud detection strategy based on class Nontechnical losses represent a very high cost to power supply companies, who aims to improve fraud detection

9

Daily Temperature Lag  

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

Daily Temperature Lag Daily Temperature Lag Name: Shyammayi Status: teacher Grade: K-2 Country: Mauritius Date: Summer 2011 Question: At what time of the day is the temperature hottest? At what time of the day is the temperature coldest? Replies: In general, the hottest part of the day is late afternoon. The sun has passed its peak in the sky but still heats the Earth up until very late in the afternoon. The lowest temperatures are around dawn. Earth has had all night to get rid of the day's heat by radiating it into space. After sunrise, temperatures begin to climb. This can be changed by local storms, sea breezes or mountain breezes and even monsoon winds. Hope this helps. R. W. "Bob" Avakian Instructor Arts and Sciences/CRC Oklahoma State Univ. Inst. of Technology Shyammayi

10

Western Interconnection Energy Imbalance Market Status and Prospects (Presentation)  

SciTech Connect

This presentation describes how a new wholesale electricity market for energy imbalance ancillary services could be implemented and operated. Some conclusions of this presentation are: (1) Method for calculating additional reserve requirements due to wind and solar production; (2) EIM results in substantial reduction in reserves requirements and ramping demand; (3) Reduced participation reduces benefits for all but reduces the benefits to non-participants the most; (4) Full participation leads to maximum benefit across the Western Interconnection, up to 42% of total reserve requirement; and (5) Regional EIM implementations have smaller but substantial benefits.

Milligan, M.; Kirby, B.; King, J.; Beuning, S.

2011-10-01T23:59:59.000Z

11

Effects of imbalance and geometric error on precision grinding machines  

SciTech Connect

To study balancing in grinding, a simple mechanical system was examined. It was essential to study such a well-defined system, as opposed to a large, complex system such as a machining center. The use of a compact, well-defined system enabled easy quantification of the imbalance force input, its phase angle to any geometric decentering, and good understanding of the machine mode shapes. It is important to understand a simple system such as the one I examined given that imbalance is so intimately coupled to machine dynamics. It is possible to extend the results presented here to industrial machines, although that is not part of this work. In addition to the empirical testing, a simple mechanical system to look at how mode shapes, balance, and geometric error interplay to yield spindle error motion was modelled. The results of this model will be presented along with the results from a more global grinding model. The global model, presented at ASPE in November 1996, allows one to examine the effects of changing global machine parameters like stiffness and damping. This geometrically abstract, one-dimensional model will be presented to demonstrate the usefulness of an abstract approach for first-order understanding but it will not be the main focus of this thesis. 19 refs., 36 figs., 10 tables.

Bibler, J.E.

1997-06-01T23:59:59.000Z

12

E-Print Network 3.0 - allele specific imbalance Sample Search...  

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

Slight imbalance with allele 11 1995: SRM 2391 PCR-based DNA Profiling Standard... profile to population allele frequencies to generate a ... Source: National Institute of...

13

Yesterday's Daily Summary - Hanford Site  

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

Station Real Time Met Data from Around the Site Current HMS Observations Daily HMS Extremes in Met Data Met and Climate Data Summary Products Historical Weather Charts Contacts...

14

Daily Normal Precipitation - Hanford Site  

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

Station Real Time Met Data from Around the Site Current HMS Observations Daily HMS Extremes in Met Data Met and Climate Data Summary Products Historical Weather Charts Contacts...

15

Distillate Imports Surged to Meet Supply/Demand Imbalance  

Gasoline and Diesel Fuel Update (EIA)

receded when weather moderated and new supply began to receded when weather moderated and new supply began to arrive. Imports were the largest source of new supply that arrived to relieve the imbalance that was behind the price spike. This graph shows the dramatic increase on a calendar monthly average basis. During the three weeks ending February 25, distillate fuel oil imports averaged 566 thousand barrels per day. During the prior four weeks, imports only averaged 162 thousand barrels per day. Refinery production on the East Coast also increased. For the three weeks ending February 25, East Coast distillate production averaged 478 thousand barrels per day, which was an increase of about 91 thousand barrels per day or 24% over the prior four weeks. (During the same time period, national distillate production only rose 7 percent.)

16

Unravelling daily human mobility motifs  

E-Print Network (OSTI)

Human mobility is differentiated by time scales. While the mechanism for long time scales has been studied, the underlying mechanism on the daily scale is still unrevealed. Here, we uncover the mechanism responsible for ...

Schneider, Christian M.

17

The effect of imbalance distribution and measurement locations on critical speeds in a turboprop engine rotor  

E-Print Network (OSTI)

The critical speeds of a turbomachine can be defined as the speeds at which synchronous response to imbalance is maximum (Vance,1988). Identifying the proper placement of critical speeds is very important in the design process of turbomachinery...

Marin, Manuel

2012-06-07T23:59:59.000Z

18

Response to power imbalance in Richard M. Emerson's theory of social exchange relations  

E-Print Network (OSTI)

RESPONSE TO POWER IMBALANCE IN RICHARD M. EMERSON'S THEORY OF SOCIAL EXCHANGE RELATIONS A Thesis by CARL JOHN NIEDERAUER, III Submicted to the Graduace College of Texas AAM University in partial fulfillmenc of che requirements for tne degree... of MASTER OF SCIENCE May 1988 Major Subject: Sociology RESPONSE TO POWER IMBALANCE IN RICHARD M. EMERSON'S THEORT OF SOCIAL EXCHANGE RELATIONS A Thesis by CARL JOHN NIEDERAVER) III Approved as to style and content by: Jane A. Sell (Chair...

Niederauer, Carl John

2012-06-07T23:59:59.000Z

19

Measurements of imbalance response for a rigid rotor fully supported on squeeze film dampers  

E-Print Network (OSTI)

MEASUREMENTS OF IMBALANCE RESPONSE FOR A RIGID ROTOR FULLY SUPPORTED ON SQUEEZE FILM DAMPERS A Thesis by DANIEL ROGER LUBELL Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE December 2000 Major Subject: Mechanical Engineering MEASUREMENTS OF IMBALANCE RESPONSE FORA RIGID ROTOR FULLY SUPPORTED ON SQUEEZE FILM DAMPERS by DANIEL ROGER LUBELL Submitted to Texas AlbM University in partial...

Lubell, Daniel Roger

2012-06-07T23:59:59.000Z

20

Examination of Potential Benefits of an Energy Imbalance Market in the Western Interconnection  

SciTech Connect

In the Western Interconnection, there is significant interest in improving approaches to wide-area coordinated operations of the bulk electric power system, in part because of the increasing penetration of variable generation. One proposed solution is an energy imbalance market. This study focused on that approach alone, with the goal of identifying the potential benefits of an energy imbalance market in the year 2020.

Milligan, M.; Clark, K.; King, J.; Kirby, B.; Guo, T.; Liu, G.

2013-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "negative daily imbalances" 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

Energy Assurance Daily | Department of Energy  

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

Energy Assurance Daily Energy Assurance Daily Energy Assurance Daily Energy Assurance Daily provides a summary of public information concerning current energy issues. Published Monday through Friday to inform stakeholders of developments affecting energy systems, flows, and markets, it provides highlights of energy issues rather than a comprehensive coverage. Energy Assurance Daily covers: Major energy developments Electricity, petroleum, and natural gas industries Other relevant news Energy prices The Infrastructure Security and Energy Restoration (ISER) Division cannot guarantee the accuracy of the material in the Energy Assurance Daily. Any further use is subject to the copyright restrictions of the source document. The Energy Assurance Daily has workable hypertext links to the

22

Natural Gas Weekly Update, Printer-Friendly Version  

Annual Energy Outlook 2012 (EIA)

tolerance for negative daily imbalances to 10 percent for today's gas day. Natural Gas Pipeline Company of America (NGPL) declared several restrictions on its system owing to...

23

Energy Assurance Daily (EAD): June 2012  

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

Energy Assurance Daily provides a summary of public information concerning current energy issues. Published Monday through Friday to inform stakeholders of developments affecting energy systems,...

24

Energy Assurance Daily (EAD): July 2012  

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

Energy Assurance Daily provides a summary of public information concerning current energy issues. Published Monday through Friday to inform stakeholders of developments affecting energy systems,...

25

Energy Assurance Daily (EAD): May 2012  

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

Energy Assurance Daily provides a summary of public information concerning current energy issues. Published Monday through Friday to inform stakeholders of developments affecting energy systems,...

26

Energy Assurance Daily (EAD): April 2012  

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

Energy Assurance Daily provides a summary of public information concerning current energy issues. Published Monday through Friday to inform stakeholders of developments affecting energy systems,...

27

Energy Assurance Daily (EAD): January- March 2012  

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

Energy Assurance Daily provides a summary of public information concerning current energy issues. Published Monday through Friday to inform stakeholders of developments affecting energy systems,...

28

The effect of load imbalances on the performance of Monte Carlo algorithms in LWR analysis  

SciTech Connect

A model is developed to predict the impact of particle load imbalances on the performance of domain-decomposed Monte Carlo neutron transport algorithms. Expressions for upper bound performance “penalties” are derived in terms of simple machine characteristics, material characterizations and initial particle distributions. The hope is that these relations can be used to evaluate tradeoffs among different memory decomposition strategies in next generation Monte Carlo codes, and perhaps as a metric for triggering particle redistribution in production codes.

Siegel, A.R., E-mail: siegela@mcs.anl.gov [Argonne National Laboratory, Nuclear Engineering Division (United States); Argonne National Laboratory, Mathematics and Computer Science Division (United States); Smith, K., E-mail: kord@mit.edu [Massachusetts Institute of Technology, Department of Nuclear Science and Engineering (United States); Romano, P.K., E-mail: romano7@mit.edu [Massachusetts Institute of Technology, Department of Nuclear Science and Engineering (United States); Forget, B., E-mail: bforget@mit.edu [Massachusetts Institute of Technology, Department of Nuclear Science and Engineering (United States); Felker, K., E-mail: felker@mcs.anl.gov [Argonne National Laboratory, Mathematics and Computer Science Division (United States)

2013-02-15T23:59:59.000Z

29

Preservation of Organic Matter in Marine Sediments: Controls, Mechanisms, and an Imbalance in Sediment Organic Carbon Budgets?  

E-Print Network (OSTI)

Preservation of Organic Matter in Marine Sediments: Controls, Mechanisms, and an Imbalance in Sediment Organic Carbon Budgets? David J. Burdige* Department of Ocean, Earth and Atmospheric Sciences, Old.1. Organic Geochemistry of Marine Sediments: General Considerations 468 2. Molecularly Uncharacterized

Burdige, David

30

Imbalance response of a rotor supported on a floating ring fluid film bearing  

E-Print Network (OSTI)

rig model. 5. 14 Rotordynamic damped natural frequency map for nominal clearance configuration (C, =114. 3 pm, C, =165. 1tim). 5. 15 Rotordynamic damped natural frequency map for n- clearance configuration (C, =114. 3 pm, C, =152. 4 lrm) 5. 16...). . . . . . . . . . 7. 16 Peak to peak vibration amplitude versus journal speed. Pressure Page 86 supply 41. 4 kPa (6 psig). nominal clearance configuration (C, =114. 3 lrm and C, =165. 1 lrm). Residual imbalance. Semi-floating bearing. . 88 7. 17 Contour plots...

Naranjo, Julio Enrique

2012-06-07T23:59:59.000Z

31

The effect of teeth-on-stator labyrinth seals on rotor imbalance response  

E-Print Network (OSTI)

difficuhies that necessitated major design changes. These changes included teplacement of the hydrostatic air bearings suppordng the jack shaft with grease lubricated bearings, modification of the seal housing to allow adequate air flow to the seal chamber... the effect on the mtor imbalance response. Tests were performed over a shaft speed range of 0 to 5000 tpm and an air pressure range of 0 to 225 psig at the seal inlet. The fourth objective of this research was to determine the cross-coupled stiffness...

Conway, Eileen Marie

2012-06-07T23:59:59.000Z

32

Analysis of the flow imbalance on the profile shape during the extrusion of thin magnesium sheets  

SciTech Connect

The extrusion process facilitates the production of magnesium sheets featuring a very thin thickness as well as excellent surface properties by using a single process step only. However, the extrusion of the magnesium sheets applying not optimized process parameters, e.g. low billet temperature or/ and poorly deformable magnesium alloy, produce pronounced buckling and waving of the extruded sheets as well as a variation of accuracy in profile shape along the cross section. The present investigation focuses on the FEM-simulation of the extrusion of magnesium sheets in order to clarify the origin of the mentioned effects. The simulations identify the flow imbalance during extrusion as the main critical factor. Due to the flow imbalance after passing the die a large compression stress zone is formed causing the buckling and waving of the thin sheets. Furthermore, the simulations of the magnesium sheet extrusion reveal that the interaction of the material flow gradients along the width and along the thickness direction near the die orifice lead to the variation of the accuracy in profile shape.

Gall, Sven [Forschungszentrum Strangpressen, Technische Universität Berlin, Gustav-Meyer-Allee 25, Berlin, 13355, Germany, and Metallische Werkstoffe, Technische Universität Berlin, Ernst-Reuter-Platz 1, Berlin, 10587 (Germany); Müller, Sören [Forschungszentrum Strangpressen, Technische Universität Berlin, Gustav-Meyer-Allee 25, Berlin, 13355 (Germany); Reimers, Walter [Metallische Werkstoffe, Technische Universität Berlin, Ernst-Reuter-Platz 1, Berlin, 10587 (Germany)

2013-12-16T23:59:59.000Z

33

Negative ion detachment processes  

SciTech Connect

This paper discusses the following topics: H{sup {minus}} and D{sup {minus}} collisions with atomic hydrogen; collisional decomposition of SF{sub 6}{sup {minus}}; two-electron loss processes in negative ion collisions; associative electron detachment; and negative ion desorption from surfaces.

Champion, R.L.; Doverspike, L.D.

1990-10-01T23:59:59.000Z

34

Macrophage imbalance (M1 vs. M2) and upregulation of mast cells in wall of ruptured human cerebral aneurysms: preliminary results  

E-Print Network (OSTI)

Cite this article as: Hasan et al. : Macrophage imbalance (JOURNAL OF NEUROINFLAMMATION Hasan et al. Journal ofpreliminary results David Hasan 1,4* , Nohra Chalouhi 2 ,

Hasan, David; Chalouhi, Nohra; Jabbour, Pascal; Hashimoto, Tomoki

2012-01-01T23:59:59.000Z

35

Daily HMS Extremes in Met Data - Hanford Site  

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

Hanford Meteorological Station > Daily HMS Extremes in Met Data Hanford Meteorological Station Real Time Met Data from Around the Site Current HMS Observations Daily HMS Extremes...

36

Daily HMS Extremes in Met Data - Hanford Site  

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

Meteorological Station > Daily HMS Extremes in Met Data Hanford Meteorological Station Real Time Met Data from Around the Site Current HMS Observations Daily HMS Extremes in Met...

37

2011 Daily Log Report #: 2011-00168  

E-Print Network (OSTI)

2011 Daily Log March 2011 Report #: 2011-00168 Reported: 03/31/2011 1237 Occurred: 03/31/2011 1235 Incident: Medical Emergency Location: Outside of Student Union Disposition: Report--Closed Comments: Female transported to hospital by ambulance for medical treatment. Report #: 2011-00167 Reported: 03/31/2011 1116

Boyce, Richard L.

38

2009 Daily Log Report #: 2009-00202  

E-Print Network (OSTI)

2009 Daily Log March 2009 Report #: 2009-00202 Reported: 03/31/09 2045 Occurred: 03/29/09 1400 to 03/30/09 2000 Incident: Theft Location: Lot Q Disposition: Report--Open Comments: GPS System stolen from unlocked vehicle. Report #: 2009-00201 Reported: 03/31/09 1833 Occurred: Same Incident: Fire

Boyce, Richard L.

39

2009 Daily Log Report #: 2009-00269  

E-Print Network (OSTI)

2009 Daily Log April 2009 Report #: 2009-00269 Reported: 04/30/09 1508 Occurred: Same Incident: Traffic Crash Location: Johns Hill Road and Kenton Drive Disposition: Report--Closed Comments: Two vehicle accident; no injuries. Report #: 2009-00268 Reported: 04/30/09 1049 Occurred: Same Incident: Traffic Crash

Boyce, Richard L.

40

2011 Daily Log Report #: 2011-00229  

E-Print Network (OSTI)

2011 Daily Log April 2011 Report #: 2011-00229 Reported: 04/29/2011 2327 Occurred: 04/29/2011 2325 Incident: Medical Emergency Location: University Center Disposition: Report--Closed Comments: Female transported by ambulance to hospital for medical treatment. Report #: 2011-00228 Reported: 04/29/2011 1702

Boyce, Richard L.

Note: This page contains sample records for the topic "negative daily imbalances" 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

2010 Daily Log Report #: 2010-00262  

E-Print Network (OSTI)

2010 Daily Log June 2010 Report #: 2010-00262 Reported: 06/30/10 0957 Occurred: 06/24/10 1630 to 0957 Incident: Theft Location: Founders Hall Disposition: Report--Open Comments: Several textbooks stolen from office. No Reportable Activity on 06/29/10 Report #: 2010-00261 Reported: 06/28/10 1720

Boyce, Richard L.

42

2009 Daily Log Report #: 2009-00327  

E-Print Network (OSTI)

2009 Daily Log June 2009 Report #: 2009-00327 Reported: 06/30/09 1118 Occurred: Same Incident: Fire/Smoke Alarm Location: Dorm--Kentucky Hall Disposition: Report--Closed Comments: Alarm activation caused by drywall dust from contractors; fire department responded and cleared the scene. No Reportable Activity

Boyce, Richard L.

43

2011 Daily Log Report #: 2011-00261  

E-Print Network (OSTI)

2011 Daily Log May 2011 Report #: 2011-00261 Reported: 05/31/2011 1300 Occurred: Same Incident: Medical Emergency Location: University Center Disposition: Report--Closed Comments: Male transported to hospital by ambulance for evaluation and treatment. No Reportable Activity on 05/30/2011 No Reportable

Boyce, Richard L.

44

2011 Daily Log Report #: 2011-00295  

E-Print Network (OSTI)

2011 Daily Log June 2011 Report #: 2011-00295 Reported: 6/30/2011 0813 Occurred: 6/29/2011 1430 Incident: Traffic Crash Location: Sidewalk on Plaza Level Disposition: Report--Closed Comments: Single vehicle accident; no injuries. Report #: 2011-00294 Reported: 06/29/2011 1909 Occurred: Same Incident

Boyce, Richard L.

45

2010 Daily Log Report #: 2010-00221  

E-Print Network (OSTI)

2010 Daily Log April 2010 Report #: 2010-00221 Reported: 04/30/10 1034 Occurred: Same Incident: Found/Recovered Property Location: Founders Hall Disposition: Report--Closed Comments: Small purse was found in classroom. Report #: 2010-00220 Reported: 04/30/10 1347 Occurred: 04/30/10 0820 to 0900

Boyce, Richard L.

46

2011 Daily Log Report #: 2011-00317  

E-Print Network (OSTI)

2011 Daily Log July 2011 Report #: 2011-00317 Reported: 07/30/2011 1446 Occurred: 07/30/2011 1435 Incident: Odor Related Complaint Location: Power Plant Disposition: Report--Closed Comments: Subject reported a strange odor emanating from somewhere in the vicinity; fire department responded and cleared

Boyce, Richard L.

47

DOE Solar Decathlon: 2009 Daily Journals  

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

Richard King next to a deck and planter boxes. Decathlete Way and the U.S. Capitol are in the background. Richard King next to a deck and planter boxes. Decathlete Way and the U.S. Capitol are in the background. Solar Decathlon Director Richard King takes a break from the competition along Decathlete Way. Solar Decathlon 2009 Daily Journals The daily journals highlighted the events of the U.S. Department of Energy Solar Decathlon 2009. Each day, Richard King, Solar Decathlon director, covered the latest on the teams, their standings, and the events going on in the solar village. October 19, 2009 I personally believe one of the greatest discoveries in the field of energy from the 20th century is our ability to generate electricity from sunlight using photovoltaic solar cells. Read more. October 17, 2009 Solar Decathlon 2009 was intriguing and suspenseful to the very end. None

48

Climate Reference Network Daily01 Product | Data.gov  

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

Daily01 Product Daily01 Product Agriculture Community Menu DATA APPS EVENTS DEVELOPER STATISTICS COLLABORATE ABOUT Agriculture You are here Data.gov » Communities » Agriculture » Data Climate Reference Network Daily01 Product Dataset Summary Description The U.S. Climate Reference Network is designed specifically to monitor national climate change with best scientific practice and adherence to the accepted principles of climate observations. USCRN daily temperature mean, maximum, and minimum, daily precipitation, daily global solar radiation, and daily average surface infrared temperature data are available in the Daily01 file set for all stations in the network. Daily mean, maximum, and minimum relative humidity are available for most stations. Tags {"Climate Reference Network",USCRN,CRN,"air temperature",temperature,precipitation,"global solar radiation"," surface temperature","surface infrared temperature","relative humidity","natural resources",water,air,"soil "}

49

Daily HMS Extremes in Met Data - Hanford Site  

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

Daily HMS Extremes in Met Data Hanford Meteorological Station Real Time Met Data from Around the Site Current HMS Observations Daily HMS Extremes in Met Data Met and Climate Data...

50

Solar Decathlon 2005 Daily Event Schedule  

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

DAILY EVENT SCHEDULE DAILY EVENT SCHEDULE Last updated on September 30, 2005 Note: This schedule is not part of the official Rules and Regulations and is subject to change at any time. Weds, Sept 28 12:00 AM 12:30 AM 1:00 AM 1:30 AM 2:00 AM 2:30 AM 3:00 AM 3:30 AM 4:00 AM 4:30 AM 5:00 AM 5:30 AM 6:00 AM 6:30 AM 7:00 AM 7:30 AM 8:00 AM 8:30 AM 9:00 AM 9:30 AM 10:00 AM 10:30 AM 11:00 AM 11:30 AM 12:00 PM 12:30 PM 1:00 PM 1:30 PM 2:00 PM 2:30 PM 3:00 PM 3:30 PM 4:00 PM 4:30 PM 5:00 PM 5:30 PM 6:00 PM 6:30 PM 7:00 PM 7:30 PM 8:00 PM 8:30 PM 9:00 PM 9:30 PM 10:00 PM 10:30 PM 11:00 PM 11:30 PM Registration Forrestal Bldg (DOE) Cafeteria National Mall Team/Organizer meeting and Safety Orientation Thurs, Sept 29 12:00 AM 12:30 AM 1:00 AM 1:30 AM 2:00 AM 2:30 AM 3:00 AM 3:30 AM 4:00 AM 4:30 AM 5:00 AM 5:30 AM 6:00 AM 6:30 AM 7:00

51

Negative ion source  

DOE Patents (OSTI)

A method and apparatus for providing a negative ion source accelerates electrons away from a hot filament electron emitter into a region of crossed electric and magnetic fields arranged in a magnetron configuration. During a portion of the resulting cycloidal path, the electron velocity is reduced below its initial value. The electron accelerates as it leaves the surface at a rate of only slightly less than if there were no magnetic field, thereby preventing a charge buildup at the surface of the emitter. As the electron traverses the cycloid, it is decelerated during the second, third, and fourth quadrants, then reeccelerated as it approaches the end of the fourth quadrant to regain its original velocity. The minimum velocity occurs during the fourth quadrant, and corresponds to an electron temperature of 200.degree. to 500.degree. for the electric and magnetic fields commonly encountered in the ion sources of magnetic sector mass spectrometers. An ion source using the above-described thermalized electrons is also disclosed.

Delmore, James E. (Idaho Falls, ID)

1987-01-01T23:59:59.000Z

52

Operating Reserve Reductions from a Proposed Energy Imbalance Market with Wind and Solar Generation in the Western Interconnection  

SciTech Connect

This paper considers several alternative forms of an energy imbalance market (EIM) proposed in the nonmarket areas of the Western Interconnection. The proposed EIM includes two changes in operating practices that independently reduce variability and increase access to responsive resources: balancing authority cooperation and sub-hourly dispatch. As the penetration of variable generation increases on the power system, additional interest in coordination would likely occur. Several alternative approaches could be used, but consideration of any form of coordinated unit commitment is beyond the scope of this analysis. This report examines the benefits of several possible EIM implementations--both separately and in concert.

King, J.; Kirby, B.; Milligan, M.; Beuning, S.

2012-05-01T23:59:59.000Z

53

MCBRIDE, GRAHAM B. Simple calculation of daily photosynthesis ...  

Science Journals Connector (OSTI)

Simple calculation of daily photosynthesis by means of five photosynthesis-light equations. Abstract-The performance of five well-known photosynthesis-light ...

2000-03-19T23:59:59.000Z

54

Three chamber negative ion source  

DOE Patents (OSTI)

It is an object of this invention provide a negative ion source which efficiently provides a large flux of negatively ionized particles. This invention provides a volume source of negative ions which has a current density sufficient for magnetic fusion applications and has electrons suppressed from the output. It is still another object of this invention to provide a volume source of negative ions which can be electrostatically accelerated to high energies and subsequently neutralized to form a high energy neutral beam for use with a magnetically confined plasma.

Leung, K.N.; Ehlers, K.W.; Hiskes, J.R.

1983-11-10T23:59:59.000Z

55

Predicting Daily Net Radiation Using Minimum Climatological Data1  

E-Print Network (OSTI)

Predicting Daily Net Radiation Using Minimum Climatological Data1 S. Irmak, M.ASCE2 ; A. Irmak3 ; J for predicting daily Rn have been widely used. However, when the paucity of detailed climatological data with National Weather Service climatological datasets that only record Tmax and Tmin on a regular basis. DOI: 10

56

SCIENTIFIC NOTE Variations in daily quality assurance dosimetry from device  

E-Print Network (OSTI)

SCIENTIFIC NOTE Variations in daily quality assurance dosimetry from device levelling, feet procedures are an essential part of radiotherapy medical physics. Devices such as the Sun Nuclear, DQA3 are effective tools for analysis of daily dosimetry including flatness, symmetry, energy, field size and central

Yu, K.N.

57

Operating Reserve Implication of Alternative Implementations of an Energy Imbalance Service on Wind Integration in the Western Interconnection: Preprint  

SciTech Connect

During the past few years, there has been significant interest in alternative ways to manage power systems over a larger effective electrical footprint. Large regional transmission organizations in the Eastern Interconnection have effectively consolidated balancing areas, achieving significant economies of scale that result in a reduction in required reserves. Conversely, in the Western Interconnection there are many balancing areas, which will result in challenges if there is significant wind and solar energy development in the region. A recent proposal to the Western Electricity Coordinating Council suggests a regional energy imbalance service (EIS). To evaluate this EIS, a number of analyses are in process or are planned. This paper describes one part of an analysis of the EIS's implication on operating reserves under several alternative scenarios of the market footprint and participation. We improve on the operating reserves method utilized in the Eastern Wind Integration and Transmission Study and apply this modified approach to data from the Western Wind and Solar Integration Study.

Milligan, M.; Kirby, B.; King, J.; Beuning, S.

2011-07-01T23:59:59.000Z

58

Superfluidity at the BEC-BCS crossover in two-dimensional Fermi gases with population and mass imbalance  

Science Journals Connector (OSTI)

We explore the zero-temperature phase behavior of a two-dimensional two-component atomic Fermi gas with population and mass imbalance in the regime of the BEC-BCS crossover. Working in the mean-field approximation, we show that the normal and homogeneous balanced superfluid phases are separated by an inhomogeneous superfluid phase of Fulde-Ferrel-Larkin-Ovchinnikov (FFLO) type. We obtain an analytical expression for the line of continuous transitions separating the normal and inhomogeneous FFLO phases. We further show that the transition from the FFLO phase to the homogeneous balanced superfluid is discontinuous leading to phase separation. If the species have different masses, the superfluid phase is favored when the lighter species is in excess. We explore the implications of these findings for the properties of the two-component Fermi gas in the atomic trap geometry. Finally, we compare and contrast our findings with the predicted phase behavior of the electron-hole bilayer system.

G. J. Conduit; P. H. Conlon; B. D. Simons

2008-05-29T23:59:59.000Z

59

Backstage at the Daily Show | Department of Energy  

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

Backstage at the Daily Show Backstage at the Daily Show Backstage at the Daily Show Addthis Description Backstage footage from Secretary Chu's appearance on the Daily Show where he discuses the green room candy dish and possible lighting considerations. Speakers Secretary Steven Chu Duration 1:32 Topic Energy Efficiency Credit Energy Department Video SECRETARY STEVEN CHU: I'm in the famous green room of the Jon Stewart show. If you look around, I have all these games: Monopoly, a Rubik's Cube, Pictureka! Now if - this is to amuse myself, but in actual fact, the most famous part of this room is this. There's enough chocolate here to put you on a high that - (chuckles) - will really get you going. This is my wife, Jean. JEAN CHU: (Chuckles.) I'm - (chuckles) - edit this out! (Begin recorded segment.)

60

Daily Reporting Rainfall Station HERBERT RIVER Manual Heavy Rainfall Station  

E-Print Network (OSTI)

Daily Reporting Rainfall Station HERBERT RIVER Manual Heavy Rainfall Station Manual River Station Central Mill AL Tung Oil AL Corsis AL Innisfail Clump Point Tide TM Mourilyan Harbour TM 0 10 kilometres

Greenslade, Diana

Note: This page contains sample records for the topic "negative daily imbalances" 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

Negative differential transmission in graphene  

Science Journals Connector (OSTI)

By using the Kubo linear response theory with the Keldysh Green function approach, we investigate the mechanism leading to the negative differential transmission in a system with the equilibrium electron density much smaller than the photon-excited one. It is shown that the negative differential transmission can appear at low probe-photon energy (in the order of the scattering rate) or at high energy (much larger than the scattering rate). For the low probe-photon energy case, the negative differential transmission is found to come from the increase of the intraband conductivity due to the large variation of electron distribution after the pumping. As for the high probe-photon energy case, the negative differential transmission is shown to tend to appear with the hot-electron temperature being closer to the equilibrium one and the chemical potential higher than the equilibrium one but considerably smaller than half of the probe-photon energy. We also show that this negative differential transmission can come from both the inter- and the intraband components of the conductivity. Especially, for the interband component, its contribution to the negative differential transmission is shown to come from both the Hartree-Fock self-energy and the scattering. Furthermore, the influence of the Coulomb-hole self-energy is also addressed.

B. Y. Sun and M. W. Wu

2013-12-17T23:59:59.000Z

62

PHYSICAL REVIEW B 87, 085107 (2013) Heisenberg antiferromagnet on Cayley trees: Low-energy spectrum and even/odd site imbalance  

E-Print Network (OSTI)

PHYSICAL REVIEW B 87, 085107 (2013) Heisenberg antiferromagnet on Cayley trees: Low-energy spectrum of local sublattice imbalance in low-energy spectra of s = 1 2 quantum antiferromagnets, we study the s = 1 2 quantum nearest neighbor Heisenberg antiferromagnet on the coordination 3 Cayley tree. We perform

Henley, Christopher L.

63

Invisible Science: Lab Breakthroughs in Our Daily Lives | Department of  

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

Invisible Science: Lab Breakthroughs in Our Daily Lives Invisible Science: Lab Breakthroughs in Our Daily Lives Invisible Science: Lab Breakthroughs in Our Daily Lives April 24, 2012 - 2:30pm Addthis The Lab Breakthroughs video series focuses on the array of technological advancements and discoveries that stem from research performed in the National Labs, including improvements in industrial processes, discoveries in fundamental scientific research, and innovative medicines. See the Lab Breakthroughs topic page for the most recent videos and Q&As with researchers. The Lab Breakthroughs video series focuses on the array of technological advancements and discoveries that stem from research performed in the National Labs, including improvements in industrial processes, discoveries

64

Daylighter Daily Solar Roof Light | Open Energy Information  

Open Energy Info (EERE)

Daylighter Daily Solar Roof Light Daylighter Daily Solar Roof Light Jump to: navigation, search Name Daylighter Daily Solar Roof Light Address 1991 Crocker Road, Suite 600 Place Cleveland, Ohio Zip 44145 Sector Solar Product Installation; Manufacturing Phone number 440-892-3312 Website http://www.SolarLightisFree.co Coordinates 41.4648875°, -81.9506519° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.4648875,"lon":-81.9506519,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

65

Warm Weather and the Daily Commute | Department of Energy  

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

Warm Weather and the Daily Commute Warm Weather and the Daily Commute Warm Weather and the Daily Commute May 7, 2013 - 12:02pm Addthis Biking to work helps you get some exercise while reducing your carbon footprint. | Photo courtesy of iStockphoto.com/olaser Biking to work helps you get some exercise while reducing your carbon footprint. | Photo courtesy of iStockphoto.com/olaser Elizabeth Spencer Communicator, National Renewable Energy Laboratory How can I participate? Check out options for busing or carpooling in your area or, if you live close, try walking or biking to work. You know the weather is starting to warm up when you start hearing about those "bike, bus, or walk to work" challenges. And while my local news just started drumming up publicity for theirs, I've seen these events pop up in

66

E-Print Network 3.0 - annual average daily traffic Sample Search...  

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

Data Systems 2000. Annual Average Daily Truck Traffic on the California State... Lockout and Non-Lockout Weekdays Average Daily Traffic Volume (vehday) All Cars Trucks ......

67

E-Print Network 3.0 - average daily traffic Sample Search Results  

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

Data Systems 2000. Annual Average Daily Truck Traffic on the California State... Lockout and Non-Lockout Weekdays Average Daily Traffic Volume (vehday) All Cars Trucks...

68

Flexibility Reserve Reductions from an Energy Imbalance Market with High Levels of Wind Energy in the Western Interconnection  

SciTech Connect

The anticipated increase in variable generation in the Western Interconnection (WI) over the next several years has raised concerns about how to maintain system balance, especially in smaller Balancing Areas (BAs). Given renewable portfolio standards in the West, it is possible that more than 50 gigawatts (GW) of wind capacity will be installed by 2020. Significant quantities of solar generation are likely to be added as well. The consequent increase in variability and uncertainty that must be managed by the conventional generation fleet and responsive load make it attractive to consider ways in which Balancing Area Authorities (BAAs) can pool their variability and response resources, thus taking advantage of geographic and temporal diversity to increase overall operational efficiency. Our analysis considers several alternative forms of an Energy Imbalance Market (EIM) that have been proposed in the non-market areas of the WI. The proposed EIM includes two changes in operating practices that independently reduce variability and increase access to responsive resources: BAA cooperation and sub-hourly dispatch. As proposed, the EIM does not consider any form of coordinated unit commitment; however, over time it is possible that BAAs would develop formal or informal coordination plans. This report examines the benefits of several possible EIM implementations, both separately and in concert.

King, J.; Kirby, B.; Milligan, M.; S. Beuning

2011-10-01T23:59:59.000Z

69

Daily Cycle of Precipitation over the Northern Coast of Brazil  

Science Journals Connector (OSTI)

The daily cycle of precipitation (DCP) in the austral autumn on the northern coast of Brazil (NCB) is examined in detail. The Tropical Rainfall Measuring Mission 3B42 dataset was used to obtain the DCP, and the intradaily variability was measured ...

Sheila Santana de Barros Brito; Marcos Daisuke Oyama

2014-11-01T23:59:59.000Z

70

Generating Multiyear Gridded Daily Rainfall over New Zealand  

Science Journals Connector (OSTI)

Daily rainfall totals are a key input for hydrological models that are designed to simulate water and pollutant flow through both soil and waterways. Within New Zealand there are large areas and many river catchments where no long-term rainfall ...

Andrew Tait; Richard Turner

2005-09-01T23:59:59.000Z

71

Modelling Daily Multivariate Pollutant Data at Multiple Sites  

E-Print Network (OSTI)

. In conducting such time series studies to investigate the relationship between air pollution and a health investigating the health effects of daily changes in air pollution, the exposures are essentially treated effects of air pollution. Alternative objectives include the design problem of the positioning of a new

Washington at Seattle, University of

72

A Feasibility Study: Mining Daily Traces for Home Heating Control  

E-Print Network (OSTI)

savings as well as 14.9%­59.2% reduction in miss time. Keywords Energy, home heating, daily traces, prediction 1. INTRODUCTION Heating, ventilation and cooling (HVAC) contributes most to a home's energy bills, accounting for 48% of residential energy consumption in the U.S. and 61% in the U.K., 64% in Canada where

Whitehouse, Kamin

73

ENVIRONMENTAL LEADER: THE EXECUTIVE'S DAILY GREEN BRIEFING APRIL 25, 2008  

E-Print Network (OSTI)

ENVIRONMENTAL LEADER: THE EXECUTIVE'S DAILY GREEN BRIEFING APRIL 25, 2008 Green Business Experts at MMA Renewable Ventures, a renewable energy firm in San Francisco and formerly the Business Solutions Fellow for the Pew Center on Global Climate Change. http://www.environmentalleader.com/2008/04/25/green-business

Hoffman, Andrew J.

74

T-Negative Issue 21  

E-Print Network (OSTI)

Herring, opposite p. 8; Rosalind Oberdieck, p. 11; Ricky Pearson, pp. 13, 21, 24, 28; Janice, p. 34. lino: Mary Himmelbach. Reasons why your mailbox ate this: 8r felt like sending it 8You contributed ,----") \\.--lYou paid money at the rate of 50?/one... -that starships are grounded, too. Since the elec trical current runs from the upper pIa tform to the lower; the l,?wer pla tform is positive. The floor, bein?: groundE~d, is negat~ve. Were anyone to touch both the "ground' and the ener gized lower...

Multiple Contributors

1973-01-01T23:59:59.000Z

75

T-Negative Issue 14  

E-Print Network (OSTI)

is probably inevitable, although the use of computer-aids and other adVances in educa tion may r..ave speeded up the p:l:'Ocess. According to Stephen Whitfield in The Making of Star Trek, filcC::>y had been a - generaljpractitioner until his decision... -2- T-Negative 14, March lY72, comes from Ruth Berman, 5620 Edgewater Boulevard Minneapolis Minnesota 55417. Reprint: Belated Brag Dept: The Portland Oregonian had a poem of mine, "Sea-going House," in the "Oregonian Verse" column, November 19...

Berman, Ruth; Hall, Anna Mary

76

Do Diurnal Aerosol Changes Affect Daily Average Radiative Forcing?  

SciTech Connect

Strong diurnal variability of aerosol has been observed frequently for many urban/industrial regions. How this variability may alter the direct aerosol radiative forcing (DARF), however, is largely unknown. To quantify changes in the time-averaged DARF, we perform an assessment of 29 days of high temporal resolution ground-based data collected during the Two-Column Aerosol Project (TCAP) on Cape Cod, which is downwind of metropolitan areas. We demonstrate that strong diurnal changes of aerosol loading (about 20% on average) have a negligible impact on the 24-h average DARF, when daily averaged optical properties are used to find this quantity. However, when there is a sparse temporal sampling of aerosol properties, which may preclude the calculation of daily averaged optical properties, large errors (up to 100%) in the computed DARF may occur. We describe a simple way of reducing these errors, which suggests the minimal temporal sampling needed to accurately find the forcing.

Kassianov, Evgueni I.; Barnard, James C.; Pekour, Mikhail S.; Berg, Larry K.; Michalsky, Joseph J.; Lantz, K.; Hodges, G. B.

2013-06-17T23:59:59.000Z

77

Yearly-averaged daily usefulness efficiency of heliostat surfaces  

SciTech Connect

An analytical expression for estimating the instantaneous usefulness efficiency of a heliostat surface is obtained. A systematic procedure is then introduced to calculate the usefulness efficiency even when overlapping of blocking and shadowing on a heliostat surface exist. For possible estimation of the reflected energy from a given field, the local yearly-averaged daily usefulness efficiency is calculated. This efficiency is found to depend on site latitude angle, radial distance from the tower measured in tower heights, heliostat position azimuth angle and the radial spacing between heliostats. Charts for the local yearly-averaged daily usefulness efficiency are presented for {phi} = 0, 15, 30, and 45 N. These charts can be used in calculating the reflected radiation from a given cell. Utilization of these charts is demonstrated.

Elsayed, M.M.; Habeebuallah, M.B.; Al-Rabghi, O.M. (King Abdulaziz Univ., Jeddah (Saudi Arabia))

1992-08-01T23:59:59.000Z

78

Automatic voltage imbalance detector  

DOE Patents (OSTI)

A device for indicating and preventing damage to voltage cells such as galvanic cells and fuel cells connected in series by detecting sequential voltages and comparing these voltages to adjacent voltage cells. The device is implemented by using operational amplifiers and switching circuitry is provided by transistors. The device can be utilized in battery powered electric vehicles to prevent galvanic cell damage and also in series connected fuel cells to prevent fuel cell damage.

Bobbett, Ronald E. (Los Alamos, NM); McCormick, J. Byron (Los Alamos, NM); Kerwin, William J. (Tucson, AZ)

1984-01-01T23:59:59.000Z

79

IEP - Water-Energy Interface: Total Maximum Daily Load Page  

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

Total Maximum Daily Loads (TMDLs) Total Maximum Daily Loads (TMDLs) The overall goal of the Clean Water Act is to "restore and maintain the chemical, physical, and biological integrity of the Nation’s waters." In 1999, EPA proposed changes to Section 303(d), to establish Total Maximum Daily Loads (TMDLs) for watersheds that do not meet this goal. The TMDL is the highest amount of a given pollutant that is permissible in that body of water over a given period of time. TMDLs include both waste load allocation (WLA) for point sources and load allocations for non-point sources. In Appalachia, acid mine drainage (AMD) is the single most damaging non-point source. There is also particular concern of the atmospheric deposition of airborne sulfur, nitrogen, and mercury compounds. States are currently in the process of developing comprehensive lists of impaired waters and establishing TMDLs for those waters. EPA has recently proposed a final rule that will require states to develop TMDLs and implement plans for improving water quality within the next 10 years. Under the new rule, TMDL credits could be traded within a watershed.

80

Non-Negative Risk Components Jeremy Staum  

E-Print Network (OSTI)

. Depending on the purpose of risk attribution, it may or may not be acceptable to get negative riskNon-Negative Risk Components Jeremy Staum j-staum@northwestern.edu Department of Industrial the risk of a portfolio or system to its compo- nents, when it is required to produce non-negative risk

Staum, Jeremy

Note: This page contains sample records for the topic "negative daily imbalances" 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

“Daily” Dialysis — Lessons from a Randomized, Controlled Trial  

Science Journals Connector (OSTI)

...as urea, which rapidly equilibrate among body-fluid compartments. With thrice-weekly hemodialysis, the relatively long interval between dialysis sessions results in a "peak-and-valley" effect characterized by fluctuations in the levels of toxins and body-fluid volume, affecting the ability of patients... The frequency of dialysis was established at three times a week in 1965,1 and this frequency has been used in most centers around the world. Soon after the establishment of this dialysis schedule, an analogue simulation concluded that daily (also known as ...

Twardowski Z.J.; Misra M.

2010-12-09T23:59:59.000Z

82

Climbing and the daily energy cost of locomotion in wild chimpanzees: implications for hominoid locomotor evolution  

E-Print Network (OSTI)

Climbing and the daily energy cost of locomotion in wild chimpanzees: implications for hominoid in a population of wild chimpanzees and used published equations to calculate the relative daily energy costs, specifically whether arboreal adaptations serve to minimize daily locomotor energy costs by decreasing

Pontzer, Herman

83

Effect of defect imbalance on void swelling distributions produced in pure iron irradiated with 3.5 MeV self-ions  

SciTech Connect

Ion irradiation has been widely used to simulate neutron-induced radiation damage. There are a number of features of ion-induced damage that differ from neutron-induced damage, however, and these differences require investigation before ion data can be confidently used to predict behavior arising from neutron bombardment. In this study 3.5 MeV self-ion irradiation of pure iron was used to study the influence on void swelling of the depth-dependent defect imbalance between vacancies and interstitials that arises from various surface effects, forward scattering of displaced atoms, and especially the injected interstitial effect. It was observed that the depth dependence of void swelling does not follow the behavior anticipated from the depth dependence of the damage rate. Void nucleation and growth develop first in the lower-dose, near-surface region, and then moves to progressively deeper and higher-damage depths during continued irradiation. This indicates a strong initial suppression of void nucleation in the peak damage region that is eventually overcome with continued irradiation. Using the Boltzmann transport equation method, this phenomenon is shown to be due to depth-dependent defect imbalances created under ion irradiation. These findings demonstrate that void swelling does not depend solely on the local dose level and that this sensitivity of swelling to depth must be considered in extraction and interpretation of ion-induced swelling data. 2014 El

Lin Shao; C.-C. Wei; J. Gigax; A. Aitkaliyeva; D. Chen; B.H. Sencer; F.A. Garner

2014-10-01T23:59:59.000Z

84

Reversed Doppler effect in double negative metamaterials  

Science Journals Connector (OSTI)

Doppler shifts in double negative metamaterials have never been observed. This Rapid Communication presents experimental results on Doppler effect in a double negative acoustic metamaterial. We observed that frequency was downshifted when the source was approaching and upshifted when receding. Notably, while in ordinary media wavelengths corresponding to downshifted frequencies are longer, we demonstrate that in double negative metamaterials wavelengths increase as the frequencies increase. Consequently even though the frequencies were downshifted in front of the moving source, the wavelengths became shorter.

Sam Hyeon Lee; Choon Mahn Park; Yong Mun Seo; Chul Koo Kim

2010-06-14T23:59:59.000Z

85

Form EIA-930 HOURLY AND DAILY BALANCING AUTHORITY OPERATIONS REPORT  

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

930 930 HOURLY AND DAILY BALANCING AUTHORITY OPERATIONS REPORT INSTRUCTIONS Due Date: mm/dd/yyyy Approved: OMB No. 1905-0129 Approval Expires: 10/31/2016 Burden: 0.19 hours Page 1 Draft for Discussion only PURPOSE Form EIA-930 requires Internet posting of hourly balancing authority operating data. The posted data are used to monitor the current status and trends of the electric power industry, and to support enhancement of electric system operations. REQUIRED RESPONDENTS For the contiguous United States: all entities that are listed in NERC's Compliance Registry as a balancing authority must post balancing authority operating information required by this survey. Other than the Midwest ISO (MISO), registered balancing authorities that are parties

86

Photo-Electrons and Negative Ions  

Science Journals Connector (OSTI)

2 December 1931 research-article Photo-Electrons and Negative Ions E. M. Wellish The Royal Society is collaborating with JSTOR to digitize, preserve, and extend...

1931-01-01T23:59:59.000Z

87

EXPONENTIAL UTILITY WITH NON-NEGATIVE CONSUMPTION  

E-Print Network (OSTI)

EXPONENTIAL UTILITY WITH NON-NEGATIVE CONSUMPTION ROMAN MURAVIEV AND MARIO V. W¨UTHRICH DEPARTMENT- ponential utility maximization problem, where feasible consumption policies are not permitted to be negative- come reduces the current consumption level, thus confirming the presence of the precautionary savings

Wüthrich, Mario

88

Forecasting the daily outbreak of topic-level political risk from social media using hidden Markov model-based techniques  

Science Journals Connector (OSTI)

Abstract Nowadays, as an arena of politics, social media ignites political protests, so analyzing topics discussed negatively in the social media has increased in importance for detecting a nation's political risk. In this context, this paper designs and examines an automatic approach to forecast the daily outbreak of political risk from social media at a topic level. It evaluates the forecasting performances of topic features, investigated among the previous works that analyze social media data for politics, hidden Markov model (HMM)-based techniques, widely used for the anomaly detection with time-series data, and detection models, into which the topic features and the detection techniques are combined. When applied to South Korea's Web forum, Daum Agora, statistical comparisons with the constraints of false positive rate of political risk, and eventually the predictive governance benefits the people.

Jong Hwan Suh

2014-01-01T23:59:59.000Z

89

F1-Negative Natural Y. pestis Strains  

Science Journals Connector (OSTI)

Our results showed that F1-negative Y. pestis...strains with changed plasmid profile and genetic profile are isolated alongside with F1-positive strains from the natural foci of...

Tatyana V. Meka-Mechenko

2003-01-01T23:59:59.000Z

90

Negative Casimir Entropies in Nanoparticle Interactions  

E-Print Network (OSTI)

Negative entropy has been known in Casimir systems for some time. For example, it can occur between parallel metallic plates modeled by a realistic Drude permittivity. Less well known is that negative entropy can occur purely geometrically, say between a perfectly conducting sphere and a conducting plate. The latter effect is most pronounced in the dipole approximation, which is reliable when the size of the sphere is small compared to the separation between the sphere and the plate. Therefore, here we examine cases where negative entropy can occur between two electrically and magnetically polarizable nanoparticles or atoms, which need not be isotropic, and between such a small object and a conducting plate. Negative entropy can occur even between two perfectly conducting spheres, between two electrically polarizable nano-particles if there is sufficient anisotropy, between a perfectly conducting sphere and a Drude sphere,and between a sufficiently anisotropic electrically polarizable nano-particle and a transverse magnetic conducting plate.

K. A. Milton; Romain Guérout; Gert-Ludwig Ingold; Astrid Lambrecht; Serge Reynaud

2014-05-01T23:59:59.000Z

91

McGinness Hills Well 27A-10 Daily Drilling Report Data  

SciTech Connect

This data should be used with the daily drilling record and other data which can be obtained from the contact listed below

Knudsen, Steven

2014-03-25T23:59:59.000Z

92

McGinness Hills Well 27A-10 Daily Drilling Report Data  

DOE Data Explorer (OSTI)

This data should be used with the daily drilling record and other data which can be obtained from the contact listed below

Knudsen, Steven

93

E-Print Network 3.0 - amplitude daily geomagnetic Sample Search...  

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

level of geomagnetic disturbances. The anomalies were registered daily... -speed solar wind, mag- netic field disturbances in the interplanetary space and in the geomagnetic...

94

Future projections of daily precipitation and its extremes in simulations of 21st century climate change.  

E-Print Network (OSTI)

??The current generation of climate models in the Coupled Model Intercomparison Project Phase 5 (CMIP5) is used to assess the future changes in daily precipitation… (more)

Yin, Lei

2013-01-01T23:59:59.000Z

95

Arctic daily temperature and precipitation extremes: Observed and simulated physical behavior.  

E-Print Network (OSTI)

??ARCTIC DAILY TEMPERATURE AND PRECIPITATION EXTREMES: OBSERVED AND SIMULATED PHYSICAL BEHAVIOR Justin M. Glisan Department of Geological and Atmospheric Sciences, Iowa State University, Ames, Iowa… (more)

Glisan, Justin Michael

2012-01-01T23:59:59.000Z

96

Negative energy seen by accelerated observers  

Science Journals Connector (OSTI)

The sampled negative energy density seen by inertial observers, in arbitrary quantum states is limited by quantum inequalities, which take the form of an inverse relation between the magnitude and duration of the negative energy. The quantum inequalities severely limit the utilization of negative energy to produce gross macroscopic effects, such as violations of the second law of thermodynamics. The restrictions on the sampled energy density along the worldlines of accelerated observers are much weaker than for inertial observers. Here we will illustrate this with several explicit examples. We consider the worldline of a particle undergoing sinusoidal motion in space in the presence of a single mode squeezed vacuum state of the electromagnetic field. We show that it is possible for the integrated energy density along such a worldline to become arbitrarily negative at a constant average rate. Thus the averaged weak energy condition is violated in these examples. This can be the case even when the particle moves at nonrelativistic speeds. We use the Raychaudhuri equation to show that there can be net defocusing of a congruence of these accelerated worldlines. This defocusing is an operational signature of the negative integrated energy density. These results in no way invalidate nor undermine either the validity or utility of the quantum inequalities for inertial observers. In particular, they do not change previous constraints on the production of macroscopic effects with negative energy, e.g., the maintenance of traversable wormholes.

L. H. Ford and Thomas A. Roman

2013-04-01T23:59:59.000Z

97

Magnetic moment of the negative muon  

Science Journals Connector (OSTI)

The most accurate value of the negative-muon magnetic moment, ??-=3.183 345(10)?p, is obtained by combining the negative-muon mass from x-ray transitions in muonic atoms and the reanalyzed negative-muon g factor with the proton magnetic moment in Bohr magnetons. The fractional uncertainty of 3.1×10-6 is 15 times more accurate than any previous direct measurement. The obtained ratio of the magnetic moments of the positive muon and the negative muon, ??+/??-=1.000 000 2(31), provides a test of CPT invariance at the level of 3 ppm. The negative-muon g factor g?- and the magnetic moment anomaly a?- derived for a test of CPT theorem are obtained from an approach now made possible using the new value of the negative-muon magnetic moment. To substantially improve the verification of the CPT theorem for the muon g factor, a much more precise value for ??-/?p is needed to determine the anomalous g factor a?- for the new Brookhaven National Laboratory muon g-2 experiment.

X. Fei

1994-02-01T23:59:59.000Z

98

Daily torpor in mice: high foraging costs trigger energy-saving hypothermia  

Science Journals Connector (OSTI)

...high foraging costs trigger energy-saving hypothermia Kristin A. Schubert...the use of daily torpor as an energy-saving strategy. The finding that daily...metabolic rate over time represented energy savings which ranged from 1-8 kJ d1...

2010-01-01T23:59:59.000Z

99

Daily routines of body mass gain in birds: 2. An experiment with reduced food availability  

E-Print Network (OSTI)

; published online 31 July 2006; MS. number: 8608R) Theoretical models predict that small birds should adjust daily patterns of body mass gain in response to environmental and internal factors. In a companion paper, we described a model on daily fattening that allows the analysis of precise changes in the shape

Carrascal, Luis M.

100

Intra-daily variations in volatility and transaction costs in the Credit Default Swap market  

E-Print Network (OSTI)

Intra-daily variations in volatility and transaction costs in the Credit Default Swap market Andras : Credit Default Swap, Intra-daily patterns, Stochastic transaction costs, Volatility, Interdealer market on the Microstructure of Financial Markets in Hong Kong, the 2008 Credit conference in Venice, the Third Annual Risk

Del Moral , Pierre

Note: This page contains sample records for the topic "negative daily imbalances" 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

Statistical Characteristics of Daily Precipitation: Comparisons of Gridded and Point Datasets  

E-Print Network (OSTI)

Statistical Characteristics of Daily Precipitation: Comparisons of Gridded and Point Datasets Gauge Dataset (URD) and those of its nearest (rain gauge) station. To further examine differences between the two datasets, return periods of daily precipitation were calculated over a region encompassing

Roy Chowdhury, Rinku

102

ELPIS-JP: a dataset of local-scale daily climate change scenarios for Japan  

Science Journals Connector (OSTI)

...the advanced research WRF version 3Boulder, CONational...Semenov1991A serial approach to local stochastic weather modelsEcol...ELPIS-JP: a dataset of local-scale daily climate...developed a dataset of local-scale daily climate...relative humidity; and wind speed) at 938 sites in...

2012-01-01T23:59:59.000Z

103

Changes in daily temperature and precipitation extremes in central and south Asia  

E-Print Network (OSTI)

Changes in daily temperature and precipitation extremes in central and south Asia A. M. G. Klein in indices of climate extremes are studied on the basis of daily series of temperature and precipitation, the indices of temperature extremes indicate warming of both the cold tail and the warm tail

Klein Tank, Albert

104

Principal Investigators: Long-Term Daily and Monthly Climate Records from  

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

Principal Investigators: Long-Term Daily and Monthly Climate Records from Principal Investigators: Long-Term Daily and Monthly Climate Records from Stations Across the Contiguous United States M.J. Menne, C.N. Williams, Jr., and R.S. Vose National Climatic Data Center National Oceanic and Atmospheric Administration CDIAC and the USHCN PIs encourage users to make this site their main source for obtaining USHCN data, where you can take advantage of data plotting, and, for daily data, user-friendly station-specific downloading. This site will update both daily and monthly data near the beginning of each year, so as to include data through December of the previous year. However, if you need real-time data updates, you should visit the NCDC website. For NCDC-updated daily data please use the Global Historical Climatology Network (GHCN) website where you will find a directory of USHCN stations.

105

Today in Energy - Daily Prices - Prices - U.S. Energy Information  

Gasoline and Diesel Fuel Update (EIA)

December 20, 2013Daily Prices December 20, 2013Daily Prices Daily wholesale and retail prices for various energy products are shown below, including spot prices and select futures prices at national or regional levels. Prices are updated each weekday (excluding federal holidays), typically between 7:30 and 8:30 a.m. This page is meant to provide a snapshot of selected daily prices only. Prices are republished by EIA with permission as follows: Wholesale Spot Petroleum Prices from Thomson Reuters, Retail Petroleum Prices from AAA Fuel Gauge Report, Prompt-Month Energy Futures from CME Group, and Select Spot Prices from SNL Energy. Daily Prices Wholesale Spot Petroleum Prices, 12/19/13 Close Product Area Price Percent Change* Crude Oil ($/barrel) WTI 98.40 +0.8 Brent 110.78 +1.1 Louisiana Light 108.27 +4.9

106

Inflation with a negative cosmological constant  

SciTech Connect

We find a unique way of realizing inflation through cyclic phases in a universe with negative vacuum energy. According to the second law of thermodynamics entropy monotonically increases from cycle to cycle, typically by a constant factor. This means that the scale factor at the same energy density in consecutive cycles also increases by a constant factor. If the time period of the oscillations remains approximately constant then this leads to an 'overall' exponential growth of the scale factor, mimicking inflation. A graceful exit from this inflationary phase is possible as a dynamical scalar field can take us from the negative to a positive energy vacuum during the last contracting phase.

Biswas, Tirthabir [Department of Physics, Institute for Gravitation and the Cosmos, Pennsylvania State University, 104 Davey Lab, University Park, Pennsylvania, 16802 (United States); Mazumdar, Anupam [Physics Department, Lancaster University, Lancaster, LA1 4YB (United Kingdom); Niels Bohr Institute, Copenhagen, Blegdamsvej-17, DK-2100 (Denmark)

2009-07-15T23:59:59.000Z

107

Hidden negative energies in strongly accelerated universes  

Science Journals Connector (OSTI)

We point out that theories of cosmological acceleration which have equation of state, w, such that 1+w is small but positive may still secretly violate the null energy condition. This violation implies the existence of observers for whom the background has infinitely negative energy densities, despite the fact that the perturbations are free of ghosts and gradient instabilities.

Ignacy Sawicki and Alexander Vikman

2013-03-01T23:59:59.000Z

108

Negative Entanglement Measure, and What It Implies  

E-Print Network (OSTI)

In this paper, we extract from concurrence its variable part, denoted $\\Lambda$, and use $\\Lambda$ as a time-dependent measure of "distance", either postive or negative, from the separability boundary. We use it to investigate entanglement dynamics of two isolated but initially entangled qubits, each coupled to its own environment.

Ting Yu; J. H. Eberly

2007-03-10T23:59:59.000Z

109

Partial energies fluctuations and negative heat capacities  

E-Print Network (OSTI)

We proceed to a critical examination of the method used in nuclear fragmentation to exhibit signals of negative heat capacity. We show that this method leads to unsatisfactory results when applied to a simple and well controlled model. Discrepancies are due to incomplete evaluation of potential energies.

Xavier Campi; H. Krivine; E. Plagnol; N. Sator

2004-08-03T23:59:59.000Z

110

Negative Electrode For An Alkaline Cell  

DOE Patents (OSTI)

The present invention concerns a negative electrode for an alkaline cell, comprising a current collector supporting a paste containing an electrochemically active material and a binder, characterized in that said binder is a polymer containing hydrophilic and hydrophobic groups, said polymer being selected from an acrylic homopolymer, copolymer and terpolymer, an unsaturated organic acid copolymer and an unsaturated acid anhydride copolymer.

Coco, Isabelle (Talence Cedex, FR); Cocciantelli, Jean-Michel (Bordeaux, FR); Villenave, Jean-Jacques (Talence Cedex, FR)

1998-07-14T23:59:59.000Z

111

Structures with negative index of refraction  

DOE Patents (OSTI)

The invention provides simplified negative index materials (NIMs) using wire-pair structures, 4-gap single ring split-ring resonator (SRR), fishnet structures and overleaf capacitor SRR. In the wire-pair arrangement, a pair of short parallel wires and continuous wires are used. In the 4-gap single-ring SRR, the SRRs are centered on the faces of a cubic unit cell combined with a continuous wire type resonator. Combining both elements creates a frequency band where the metamaterial is transparent with simultaneously negative .di-elect cons. and .mu.. In the fishnet structure, a metallic mesh on both sides of the dielectric spacer is used. The overleaf capacitor SRR changes the gap capacities to small plate capacitors by making the sections of the SRR ring overlap at the gaps separated by a thin dielectric film. This technique is applicable to conventional SRR gaps but it best deploys for the 4-gap single-ring structures.

Soukoulis, Costas M. (Ames, IA); Zhou, Jiangfeng (Ames, IA); Koschny, Thomas (Ames, IA); Zhang, Lei (Ames, IA); Tuttle, Gary (Ames, IA)

2011-11-08T23:59:59.000Z

112

Get Daily Energy Analysis Delivered to Your Website | Department of Energy  

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

Get Daily Energy Analysis Delivered to Your Website Get Daily Energy Analysis Delivered to Your Website Get Daily Energy Analysis Delivered to Your Website August 8, 2011 - 3:39pm Addthis Get Daily Energy Analysis Delivered to Your Website Matthew Loveless Matthew Loveless Data Integration Specialist, Office of Public Affairs How can I participate? Go to EIA's outreach page for Today in Energy widgets, badges and banners. Now everyone can feature the U.S. Energy Information Administration's (EIA) Today in Energy content on their website and favorite social networking sites. Today in Energy, the agency's education product published every weekday, highlights current energy issues, topics, and data trends in short articles written in plain language. EIA has banners and widgets in different colors and sizes to fit many different websites.

113

Background: Long-Term Daily and Monthly Climate Records from Stations  

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

Background: Long-Term Daily and Monthly Climate Records from Stations Background: Long-Term Daily and Monthly Climate Records from Stations Across the Contiguous United States The United States Historical Climatology Network (USHCN) is a high-quality data set of daily and monthly records of basic meteorological variables from 1218 observing stations across the 48 contiguous United States. Daily data include observations of maximum and minimum temperature, precipitation amount, snowfall amount, and snow depth; monthly data consist of monthly-averaged maximum, minimum, and mean temperature and total monthly precipitation. Most of these stations are U.S. Cooperative Observing Network stations located generally in rural locations, while some are National Weather Service First-Order stations that are often located in more urbanized environments. The USHCN has been developed over the years at

114

A stochastic model for the daily coordination of pumped storage hydro plants and wind power plants  

Science Journals Connector (OSTI)

We propose a stochastic model for the daily operation scheduling of a generation system including pumped storage hydro plants and wind power plants, where the uncertainty is represented by the hourly wind power p...

Maria Teresa Vespucci; Francesca Maggioni…

2012-03-01T23:59:59.000Z

115

U.S. Daily Temperatures: The Meaning of Extremes in the Context of Nonnormality  

Science Journals Connector (OSTI)

Variations in extreme daily temperatures are explored in relation to changes in seasonal mean temperature using 1218 high-quality U.S. temperature stations spanning 1900–2012. Extreme temperatures are amplified (or damped) by as much as ±50% ...

P. Huybers; K. A. McKinnon; A. Rhines; M. Tingley

2014-10-01T23:59:59.000Z

116

Daily Reporting Rainfall Station TULLY & JOHNSTONE RIVERS Manual Heavy Rainfall Station  

E-Print Network (OSTI)

Daily Reporting Rainfall Station TULLY & JOHNSTONE RIVERS Manual Heavy Rainfall Station Manual Tide TM Bulgun Ck AL Bingil Bay The Boulders TM Nerada AL Tung Oil AL Fishers Ck TM Corsis AL Russell

Greenslade, Diana

117

Daily Reporting Rainfall Station TULLY & JOHNSTONE RIVERS Manual Heavy Rainfall Station  

E-Print Network (OSTI)

Daily Reporting Rainfall Station TULLY & JOHNSTONE RIVERS Manual Heavy Rainfall Station Manual The Boulders TM Nerada AL Tung Oil AL Fishers Ck TM Corsis AL RussellR Babinda Clyde Rd AL Central Mill AL

Greenslade, Diana

118

LCA comparison of windrow composting of yard wastes with use as alternative daily cover (ADC)  

E-Print Network (OSTI)

LCA comparison of windrow composting of yard wastes with use as alternative daily cover (ADC) Rob Assessment was made using the SimaPro LCA software and showed that the ADC scenario is more beneficial

Columbia University

119

Nanotechnology in our Daily Life Iridescent car paint: Based on interference colors  

E-Print Network (OSTI)

Nanotechnology in our Daily Life Iridescent car paint: Based on interference colors (like a butterly, no bleaching after 5 years Miami) #12;Nanotechnology on our Desktops Hard Disk Sensor Medium

Himpsel, Franz J.

120

Daily torpor in mice: high foraging costs trigger energy-saving hypothermia  

Science Journals Connector (OSTI)

...strategies to save energy. Facultative daily...between environmental quality, foraging behaviour...environmental quality|foraging costs|energy balance| 1. Introduction...foraging costs in poor quality habitat. As an...strategy to maintain energy balance, natural...

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "negative daily imbalances" 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

Developing hourly weather data for locations having only daily weather data  

SciTech Connect

A methodology was developed to modify an hourly TMY weather tape to be representative of a location for which only average daily weather parameters were avilable. Typical hourly and daily variations in solar flux, and other parameters, were needed to properly exercise a computer model to predict the transient performance of a solar controlled greenhouse being designed for Riyadh, Saudi Arabia. The starting point was a TMY tape for Yuma, Arizona, since the design temperatures for summer and winter are nearly identical for Yuma and Riyadh. After comparing six of the most important weather variables, the hourly values on the Yuma tape were individually adjusted to give the same overall daily average conditions as existed in the long-term Riyadh data. Finally, a statistical analysis was used to confirm quantitatively that the daily variations between the long term average values for Riyadh and the modified TMY weather tape for Yuma matched satisfactorily.

Talbert, S.G.; Herold, K.E.; Jakob, F.E.; Lundstrom, D.K.

1983-06-01T23:59:59.000Z

122

Cakewalking into representation : Gabriele Münter's America travels (1898-1900) and art of dailiness  

E-Print Network (OSTI)

This study explores the fashioning of Gabriele Münter as a German modernist with a focus on the eclipse of her struggles in coming to representation, the rich complexity of her processes, and the importance of dailiness ...

Bible, Ann Vollmann

2008-01-01T23:59:59.000Z

123

Dynamic Shape Modeling of Consumers’ Daily Load Based on Data Mining  

Science Journals Connector (OSTI)

The shape characteristic of daily power consumption of consumers can be applied to guide their power consumption behaviors and improve load structures of power system. It is also the basis to obtain the shape cha...

Lianmei Zhang; Shihong Chen; Qiping Hu

2005-01-01T23:59:59.000Z

124

Micro-simulation of daily activity-travel patterns for travel demand forecasting  

Science Journals Connector (OSTI)

The development and initial validation results of a micro-simulator for the generation of daily activity-travel patterns are presented in this paper. The simulator assumes a sequential history and time-of-day ...

Ryuichi Kitamura; Cynthia Chen; Ram M. Pendyala; Ravi Narayanan

125

African Press International (API) This is your "Daily Online News Channel".  

E-Print Network (OSTI)

African Press International (API) This is your "Daily Online News Channel". Home A:Contact us powerful as before ­ Is this good for new Kenya? (api) The travelling man: Pope Benedict XVI is due

126

Review of Methods to Map People’s Daily Activity – Application for Smart Homes  

Science Journals Connector (OSTI)

People’s daily activity in their home has widespread implications, including health and energy ... the winter of 2012. Within a smart home, these methods could potentially be used to...

Stephanie Gauthier; David Shipworth

2013-01-01T23:59:59.000Z

127

Automation: A Step toward Improving the Quality of Daily Temperature Data Produced by Climate Observing Networks  

Science Journals Connector (OSTI)

The research documented in this manuscript demonstrates that undeniable differences exist between values of daily temperature recorded by the National Weather Service Cooperative Observer Program network and data recorded by the Oklahoma Mesonet. ...

Christopher A. Fiebrich; Kenneth C. Crawford

2009-07-01T23:59:59.000Z

128

Grid History: A Geostationary Satellite Technique for Estimating Daily Rainfall in the Tropics  

Science Journals Connector (OSTI)

A new technique is described for estimating daily rainfall by means of visible and infrared geostationary satellite imagery. It is designed for the tropics and warm-season midlatitudes. Because it operates on a grid of points and measures time ...

David W. Martin; Michael R. Howland

1986-02-01T23:59:59.000Z

129

Combined Total Amount of Oil and Gas Recovered Daily from the...  

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

XLS Combined Total Amount of Oil and Gas Recovered Daily from the Top Hat and Choke Line oil recovery systems - XLS Updated through 12:00 AM on July 16, 2010. 52Item84Recovery...

130

Combined Total Amount of Oil and Gas Recovered Daily from the...  

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

ODS format Combined Total Amount of Oil and Gas Recovered Daily from the Top Hat and Choke Line oil recovery systems - ODS format Updated through 12:00 AM on July 16, 2010....

131

Attachment and memory for negative emotional events  

E-Print Network (OSTI)

Control of Emotions on Explicit Memory. . . . . . Interaction of Anxiety X EEQ Positive Affect on Explicit Memory. . 50 51 51 Mediation Model 52 Interaction of Anxiety X Video Mood on Explicit Memory 52 Interaction of Avoidance X Sex on Imphcit... monitored their responses to the video content through a hidden camera in the laboratory room. The video clip, which came from the Swedish film Autumn Sonata directed by Ingmar Bergman, was selected on the basis of its negative, attachment-relevant content...

Wilson, Carol Leigh

2012-06-07T23:59:59.000Z

132

Quasiprobability distributions of negative binomial states  

Science Journals Connector (OSTI)

We present the s-parametrized quasiprobability distributions for the negative binomial states. Marked changes in the quasiprobability distributions W(?,?,s) are exhibited by states that are close to the random-phase coherent state (?=0), as the parameter s is varied continuously from s=-1, corresponding to the Q function, to s=1, corresponding to the P function. However, states close to the thermal-noise state (?=1) exhibit the usual Gaussian-like distributions for all values of s.

Richard D’Souza and Adya Prasad Mishra

1992-05-01T23:59:59.000Z

133

Two photo permits are available: Daily Photographer Permit and Annual Photographer Permit. Daily Photographer Permit is $75 and includes gate admission for up to 15 adults and photographer. To reserve  

E-Print Network (OSTI)

Two photo permits are available: Daily Photographer Permit and Annual Photographer Permit. Daily of the photo session will be $75 plus a $25 processing fee. Your Daily Photo Badge can be picked up the business day before. Any permits purchased on the day of the photo session will be $225 and subject

Netoff, Theoden

134

The potential of different artificial neural network (ANN) techniques in daily global solar radiation modeling based on meteorological data  

SciTech Connect

The main objective of present study is to predict daily global solar radiation (GSR) on a horizontal surface, based on meteorological variables, using different artificial neural network (ANN) techniques. Daily mean air temperature, relative humidity, sunshine hours, evaporation, and wind speed values between 2002 and 2006 for Dezful city in Iran (32 16'N, 48 25'E), are used in this study. In order to consider the effect of each meteorological variable on daily GSR prediction, six following combinations of input variables are considered: (I)Day of the year, daily mean air temperature and relative humidity as inputs and daily GSR as output. (II)Day of the year, daily mean air temperature and sunshine hours as inputs and daily GSR as output. (III)Day of the year, daily mean air temperature, relative humidity and sunshine hours as inputs and daily GSR as output. (IV)Day of the year, daily mean air temperature, relative humidity, sunshine hours and evaporation as inputs and daily GSR as output. (V)Day of the year, daily mean air temperature, relative humidity, sunshine hours and wind speed as inputs and daily GSR as output. (VI)Day of the year, daily mean air temperature, relative humidity, sunshine hours, evaporation and wind speed as inputs and daily GSR as output. Multi-layer perceptron (MLP) and radial basis function (RBF) neural networks are applied for daily GSR modeling based on six proposed combinations. The measured data between 2002 and 2005 are used to train the neural networks while the data for 214 days from 2006 are used as testing data. The comparison of obtained results from ANNs and different conventional GSR prediction (CGSRP) models shows very good improvements (i.e. the predicted values of best ANN model (MLP-V) has a mean absolute percentage error (MAPE) about 5.21% versus 10.02% for best CGSRP model (CGSRP 5)). (author)

Behrang, M.A.; Assareh, E. [Department of Mechanical Engineering, Young Researchers Club, Islamic Azad University, Dezful Branch (Iran); Ghanbarzadeh, A.; Noghrehabadi, A.R. [Department of Mechanical Engineering, Engineering Faculty, Shahid Chamran University, Ahvaz (Iran)

2010-08-15T23:59:59.000Z

135

External Beam Accelerated Partial-Breast Irradiation Using 32 Gy in 8 Twice-Daily Fractions: 5-Year Results of a Prospective Study  

SciTech Connect

Purpose: External beam accelerated partial breast irradiation (APBI) is an increasingly popular technique for treatment of patients with early stage breast cancer following breast-conserving surgery. Here we present 5-year results of a prospective trial. Methods and Materials: From October 2003 through November 2005, 98 evaluable patients with stage I breast cancer were enrolled in the first dose step (32 Gy delivered in 8 twice-daily fractions) of a prospective, multi-institutional, dose escalation clinical trial of 3-dimensional conformal external beam APBI (3D-APBI). Median age was 61 years; median tumor size was 0.8 cm; 89% of tumors were estrogen receptor positive; 10% had a triple-negative phenotype; and 1% had a HER-2-positive subtype. Median follow-up was 71 months (range, 2-88 months; interquartile range, 64-75 months). Results: Five patients developed ipsilateral breast tumor recurrence (IBTR), for a 5-year actuarial IBTR rate of 5% (95% confidence interval [CI], 1%-10%). Three of these cases occurred in patients with triple-negative disease and 2 in non-triple-negative patients, for 5-year actuarial IBTR rates of 33% (95% CI, 0%-57%) and 2% (95% CI, 0%-6%; P<.0001), respectively. On multivariable analysis, triple-negative phenotype was the only predictor of IBTR, with borderline statistical significance after adjusting for tumor grade (P=.0537). Conclusions: Overall outcomes were excellent, particularly for patients with estrogen receptor-positive disease. Patients in this study with triple-negative breast cancer had a significantly higher IBTR rate than patients with other receptor phenotypes when treated with 3D-APBI. Larger, prospective 3D-APBI clinical trials should continue to evaluate the effect of hormone receptor phenotype on IBTR rates.

Pashtan, Itai M. [Harvard Radiation Oncology Program, Boston, Massachusetts (United States)] [Harvard Radiation Oncology Program, Boston, Massachusetts (United States); Recht, Abram [Department of Radiation Oncology, Beth Israel Deaconess Medical Center, Boston, Massachusetts (United States)] [Department of Radiation Oncology, Beth Israel Deaconess Medical Center, Boston, Massachusetts (United States); Ancukiewicz, Marek [Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts (United States)] [Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts (United States); Brachtel, Elena [Department of Pathology, Massachusetts General Hospital, Boston, Massachusetts (United States)] [Department of Pathology, Massachusetts General Hospital, Boston, Massachusetts (United States); Abi-Raad, Rita F. [Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts (United States)] [Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts (United States); D'Alessandro, Helen A. [Department of Radiology, Massachusetts General Hospital, Boston, Massachusetts (United States)] [Department of Radiology, Massachusetts General Hospital, Boston, Massachusetts (United States); Levy, Antonin; Wo, Jennifer Y. [Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts (United States)] [Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts (United States); Hirsch, Ariel E. [Department of Radiation Oncology, Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts (United States)] [Department of Radiation Oncology, Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts (United States); Kachnic, Lisa A. [Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts (United States)] [Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts (United States); Goldberg, Saveli [Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts (United States)] [Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts (United States); Specht, Michelle; Gadd, Michelle; Smith, Barbara L. [Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts (United States)] [Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts (United States); Powell, Simon N. [Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts (United States)] [Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts (United States); Taghian, Alphonse G., E-mail: ataghian@partners.org [Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts (United States)

2012-11-01T23:59:59.000Z

136

Branching of negative streamers in free flight  

Science Journals Connector (OSTI)

We have recently shown that a negative streamer in a sufficiently high homogeneous field can branch spontaneously due to a Laplacian instability, rather than approach a stationary mode of propagation with fixed radius. In our previous simulations, the streamer started from a wide initial ionization seed on the cathode. We here demonstrate, in improved simulations, that a streamer emerging from a single electron branches in the same way. In fact, though the evolving streamer is much more narrow, it branches after an even shorter propagation distance.

Andrea Rocco, Ute Ebert, and Willem Hundsdorfer

2002-09-24T23:59:59.000Z

137

Scalar field collapse with negative cosmological constant  

E-Print Network (OSTI)

The formation of black holes or naked singularities is studied in a model in which a homogeneous time-dependent scalar field with an exponential potential couples to four dimensional gravity with negative cosmological constant. An analytic solution is derived and its consequences are discussed. The model depends only on one free parameter, which determines the equation of state and decides the fate of the spacetime. Without fine tuning the value of this parameter the collapse ends in a generic formation of a black hole or a naked singularity. The latter case violates the cosmic censorship conjecture.

R. Baier; Hiromichi Nishimura; S. A. Stricker

2014-10-13T23:59:59.000Z

138

Scalar field collapse with negative cosmological constant  

E-Print Network (OSTI)

The formation of black holes or naked singularities is studied in a model in which a homogeneous time-dependent scalar field with an exponential potential couples to four dimensional gravity with negative cosmological constant. An analytic solution is derived and its consequences are discussed. The model depends only on one free parameter which determines the equation of state and decides the fate of the spacetime. Depending on the value of this parameter the collapse ends in a black hole or a naked singularity. The latter case violates the cosmic censorship conjecture.

Baier, R; Stricker, S A

2014-01-01T23:59:59.000Z

139

The Negative Parity Bands in $^{156}$Gd  

E-Print Network (OSTI)

The high flux reactor of the Institut Laue-Langevin is the world most intense neutron source for research. Using the ultra high-resolution crystal spectrometers GAMS installed at the in-pile target position H6/H7 it is possible to measure nuclear state lifetimes using the Gamma Ray Induced Recoil (GRID) technique. In bent crystal mode, the spectrometers allow to perform spectroscopy with a dynamic range of up to six orders magnitude. At a very well collimated external neutron beam it is possible to install a highly efficient germanium detector array to obtain coincidences and angular correlations. The mentioned techniques were used to study the first two negative parity bands in $^{156}$Gd. These bands have been in the focus of interest since they seem to show signatures of a tetrahedral symmetry. A surprisingly high B(E2) value of about 1000 W.u. for the $4^- \\rightarrow 2^-$ transition was discovered. It indicates that the two first negative parity bands cannot be considered to be signature partners.

Michael Jentschel; Loic Sengele; Dominique Curien; Jerzy Dudek; Florent Haas

2014-04-23T23:59:59.000Z

140

To appear in Encyclopedia of Machine Learning. C. Sammut (Ed.). Springer. 2008 Cost-Sensitive Learning and the Class Imbalance Problem  

E-Print Network (OSTI)

Cost-Sensitive Learning is a type of learning in data mining that takes the misclassification costs, in medical diagnosis of a certain cancer, if the cancer is regarded as the positive class, and non-cancer (healthy) as negative, then missing a cancer (the patient is actually positive but is classified

Ling, Charles X.

Note: This page contains sample records for the topic "negative daily imbalances" 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

Electromagnetic matrix elements for negative parity nucleons  

E-Print Network (OSTI)

Here we present preliminary results for the evaluation of the electromagnetic form factors for the lowest-lying negative-parity, spin-$\\frac{1}{2}$ nucleons, namely the $S_{11}(1535)$ and $S_{11}(1650)$, through the use of the variational method. We find that the characteristics of the electric form factor, $G_{E}$, are similar between these states, however significant differences are observed between the quark-sector contributions to the magnetic form factor, $G_{M}$. Within simple constituent quark models, these states are understood to be admixtures of $s=\\frac{1}{2}$ and $s=\\frac{3}{2}$ states coupled to orbital angular momentum $\\ell = 1$. Our results reveal a qualitative difference in the manner in which the singly-represented quark sector contributes to these baryon magnetic form factors.

Benjamin Owen; Waseem Kamleh; Derek Leinweber; Selim Mahbub; Benjamin Menadue

2014-12-15T23:59:59.000Z

142

Production of intense negative hydrogen beams with polarized nuclei by selective neutralization of cold negative ions  

DOE Patents (OSTI)

A process for selectively neutralizing H/sup -/ ions in a magnetic field to produce an intense negative hydrogen ion beam with spin polarized protons. Characteristic features of the process include providing a multi-ampere beam of H/sup -/ ions that are

Hershcovitch, A.

1984-02-13T23:59:59.000Z

143

Negative K-Meson Reactions with Protons: Masses of Charged ? Hyperons and the Negative K Meson  

Science Journals Connector (OSTI)

New measurements of the masses of the charged ? hyperons and the negative K meson are reported. The results obtained are M?+=1189.3±0.3 Mev, M?-=1195.8±0.5 Mev, and MK-=493.87±0.46 Mev. No evidence for more than one K--meson mass was found. The terminal behavior of the ?- hyperons was also studied.

Walter H. Barkas, John N. Dyer, Peter C. Giles, Harry H. Heckman, Conrad J. Mason, Norris A. Nickols, and Frances M. Smith

1958-10-15T23:59:59.000Z

144

Detecting Eating Using a Wrist Mounted Device During Normal Daily Activities  

E-Print Network (OSTI)

Detecting Eating Using a Wrist Mounted Device During Normal Daily Activities Yujie Dong1, Adam method for automated monitoring of eating. Our method uses a single sensor that is worn on the wrist, similar in form to a watch. Wrist orientation was captured at a rate of 60 Hz for an entire day while four

Hoover, Adam

145

The Daily Princetonian -International fusion project will use Princeton physics lab Summer Program  

E-Print Network (OSTI)

to determine the viability of exploiting cold fusion as an energy source around the world. Much of the researchThe Daily Princetonian - International fusion project will use Princeton physics lab Summer Program | Previous | Next | Calendar International fusion project will use Princeton physics lab By ABBY WILLIAMS

146

Home Science One fish, two fish, dumb fish, dead fish DAILY SECTIONS  

E-Print Network (OSTI)

Home Science One fish, two fish, dumb fish, dead fish Home DAILY SECTIONS News Sports Opinion Arts America! Study Spanish & Volunteer ONE FISH, TWO FISH, DUMB FISH, DEAD FISH | Print | E- mail Written scientists say fish are capable of deducing how they stack up against the competition by simply watching

Fernald, Russell

147

A Model for Predicting Daily Peak Visitation and Implications for Recreation Management and Water Quality: Evidence  

E-Print Network (OSTI)

A Model for Predicting Daily Peak Visitation and Implications for Recreation Management and Water carrying capacity. Keywords Visitation model Á Recreation management Á Water quality Á River visitation Á Clark, Fort Collins, Colorado 80523, USA 123 Environmental Management DOI 10.1007/s00267-008-9079-5 #12

148

Using daily satellite observations to estimate emissions of short-lived  

E-Print Network (OSTI)

Chapter 4 Using daily satellite observations to estimate emissions of short-lived air pollutants on a mesoscopic scale Abstract Emission inventories of air pollutants are crucial information for pol- icy makers and form important input data for air quality models. Using satellite observations for emission estimates

Haak, Hein

149

Biomass burning emission inventory with daily resolution: Application to aircraft observations of Asian outflow  

E-Print Network (OSTI)

Biomass burning emission inventory with daily resolution: Application to aircraft observations for biomass burning using AVHRR satellite observations of fire activity corrected for data gaps and scan angle biomass burning in SE Asia was a major contributor to the outflow of Asian pollution observed in TRACE

Palmer, Paul

150

Water Research 37 (2003) 37563766 Seasonal and daily variations in concentrations of methyl-  

E-Print Network (OSTI)

by volume to gasoline from November to February, and blending 11% MTBE by volume during the rest of the year; accepted 24 March 2003 Abstract Methyl-tertiary-butyl ether (MTBE), an additive used to oxygenate gasoline of gasoline-powered watercraft. This paper documents and explains both seasonal and daily variations in MTBE

Toran, Laura

151

Northwestern Researchers Develop Bistable Nanoswitch Science Daily --Carbon nanotubes (CNT) have been under intense study by  

E-Print Network (OSTI)

Northwestern Researchers Develop Bistable Nanoswitch Science Daily -- Carbon nanotubes (CNT) have been under intense study by scientists all over the world for more than a decade and are being thought with high-aspect ratio, carbon nanotubes have emerged as a promising material because of their many

Espinosa, Horacio D.

152

Daily foraging patterns in free-living birds: exploring the predation–starvation trade-off  

Science Journals Connector (OSTI)

...day, possibly in response to a low but non-trivial...predictable, high-energy food, we failed...feeders with greater frequency on colder days is...between gaining energy and avoiding predation...Daily patterns of energy storage in food-caching...

2013-01-01T23:59:59.000Z

153

Modeling and Generating Daily Changes in Market Variables Using A Multivariate Mixture of Normal Distributions  

E-Print Network (OSTI)

Modeling and Generating Daily Changes in Market Variables Using A Multivariate Mixture of Normal Distributions Jin Wang Department of Mathematics and Computer Science Valdosta State University Valdosta, GA 31698-0040 January 28, 2000 Abstract The mixture of normal distributions provides a useful extension

Wang, Jin

154

Daily snow depth measurements from 195 stations in the United States  

SciTech Connect

This document describes a database containing daily measurements of snow depth at 195 National Weather Service (NWS) first-order climatological stations in the United States. The data have been assembled and made available by the National Climatic Data Center (NCDC) in Asheville, North Carolina. The 195 stations encompass 388 unique sampling locations in 48 of the 50 states; no observations from Delaware or Hawaii are included in the database. Station selection criteria emphasized the quality and length of station records while seeking to provide a network with good geographic coverage. Snow depth at the 388 locations was measured once per day on ground open to the sky. The daily snow depth is the total depth of the snow on the ground at measurement time. The time period covered by the database is 1893--1992; however, not all station records encompass the complete period. While a station record ideally should contain daily data for at least the seven winter months (January through April and October through December), not all stations have complete records. Each logical record in the snow depth database contains one station`s daily data values for a period of one month, including data source, measurement, and quality flags.

Allison, L.J. [ed.] [Oak Ridge National Lab., TN (United States). Carbon Dioxide Information Analysis Center; Easterling, D.R.; Jamason, P.; Bowman, D.P.; Hughes, P.Y.; Mason, E.H. [National Oceanic and Atmospheric Administration, Asheville, NC (United States). National Climatic Data Center

1997-02-01T23:59:59.000Z

155

Image Source: http://activefiremaps.fs.fed.us Daily Wildfire Update  

E-Print Network (OSTI)

Page 1 Image Source: http://activefiremaps.fs.fed.us Daily Wildfire Update June 14, 2011 Current Large Fires in Colorado TRACK FIRE (Updated 12:00 p.m., June 14, 2011) Fire Jurisdiction: CSFS of approximately 500 people. Closures: In Colorado, Interstate 25 is currently closed south of Exit 11. Injuries

156

Geophysical Fluid Dynamics Laboratory Daily to decadal variability in sources of  

E-Print Network (OSTI)

over the western U.S.: Stratospheric intrusions, Asian pollution, and wildfires Meiyun Lin WESTAR.g. stratospheric [Langford et al., 2009]; wildfires [Pfister et al. 2008] 2. Rising Asian emissions [e.g., Jacob et.66) (Range ~100km) Daily max 8-hr surface O3 at Boulder (~2 km a.s.l.), Colorado Insights from satellite

Jacob, Daniel J.

157

Supervised Classification of Activities of Daily Living in Health Smart Homes using SVM  

E-Print Network (OSTI)

Supervised Classification of Activities of Daily Living in Health Smart Homes using SVM Anthony studies of our laboratory focus on the monitoring of elderly people at home. This aims at detect, as early Home is used to achieve this goal. This flat includes different sensors. The data from the various

Paris-Sud XI, Université de

158

Resting and daily energy expenditures of free-living field voles are positively correlated but reflect  

E-Print Network (OSTI)

, University of Oslo, P.O. Box 1050 Blindern, 0316 Oslo, Norway; Aberdeen Centre for Energy RegulationResting and daily energy expenditures of free-living field voles are positively correlated and Obesity, Division of Energy Balance and Obesity, Rowett Research Institute, Bucksburn, Aberdeen AB24 9SB

Lambin, Xavier

159

Time of birth and daily activity mediated by feeding rhythms in the pregnant rat  

E-Print Network (OSTI)

Time of birth and daily activity mediated by feeding rhythms in the pregnant rat M. J. BOSC, Agnès studied in rats submitted to different feeding rhythms. Animals, put under 14 h of light and 10 h to one of five groups. Group C was fed ad libitum, and groups 2PF, 9PF, 14PF and 21 PF had food available

Boyer, Edmond

160

Negative refraction by a virtual photonic lattice  

E-Print Network (OSTI)

Research on photonics and metamaterials constantly challenges our intuitive understanding of the behaviour of light. In recent years we have seen negative refraction, focusing of light by a flat slab, a ``perfect'' prism, and an ``invisibility cloak'' [1-6]. It is generally understood that the cause of this unusual behaviour is the strong (anomalous) dispersion, i.e., dependence of the material properties on the frequency of light. Dispersion can be either due to a natural microscopic resonance of the material as with surface plasmons-polaritons, or due to an effective resonance (band-gap) of the periodic lattice as in photonics [7-9]. Metamaterials take the better of the two approaches representing a periodic array of designer subwavelength particles tuned to resonate at a specific frequency-band. At present, however, we have only a very basic understanding of the effect which a finite size of a sample of a periodic photonic crystal or metamaterial has on the macroscopic properties such as refraction. Yet ev...

Budko, Neil V

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "negative daily imbalances" 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

The dosimetric impact of daily setup error on target volumes and surrounding normal tissue in the treatment of prostate cancer with intensity-modulated radiation therapy  

SciTech Connect

The purpose of this study was to evaluate the impact of daily setup error and interfraction organ motion on the overall dosimetric radiation treatment plans. Twelve patients undergoing definitive intensity-modulated radiation therapy (IMRT) treatments for prostate cancer were evaluated in this institutional review board-approved study. Each patient had fiducial markers placed into the prostate gland before treatment planning computed tomography scan. IMRT plans were generated using the Eclipse treatment planning system. Each patient was treated to a dose of 8100 cGy given in 45 fractions. In this study, we retrospectively created a plan for each treatment day that had a shift available. To calculate the dose, the patient would have received under this plan, we mathematically 'negated' the shift by moving the isocenter in the exact opposite direction of the shift. The individualized daily plans were combined to generate an overall plan sum. The dose distributions from these plans were compared with the treatment plans that were used to treat the patients. Three-hundred ninety daily shifts were negated and their corresponding plans evaluated. The mean isocenter shift based on the location of the fiducial markers was 3.3 {+-} 6.5 mm to the right, 1.6 {+-} 5.1 mm posteriorly, and 1.0 {+-} 5.0 mm along the caudal direction. The mean D95 doses for the prostate gland when setup error was corrected and uncorrected were 8228 and 7844 cGy (p < 0.002), respectively, and for the planning target volume (PTV8100) was 8089 and 7303 cGy (p < 0.001), respectively. The mean V95 values when patient setup was corrected and uncorrected were 99.9% and 87.3%, respectively, for the PTV8100 volume (p < 0.0001). At an individual patient level, the difference in the D95 value for the prostate volume could be >1200 cGy and for the PTV8100 could approach almost 2000 cGy when comparing corrected against uncorrected plans. There was no statistically significant difference in the D35 parameter for the surrounding normal tissue except for the dose received by the penile bulb and the right hip. Our dosimetric evaluation suggests significant underdosing with inaccurate target localization and emphasizes the importance of accurate patient setup and target localization. Further studies are needed to evaluate the impact of intrafraction organ motion, rotation, and deformation on doses delivered to target volumes.

Algan, Ozer, E-mail: oalgan@ouhsc.edu [Department of Radiation Oncology, Biostatistics and Epidemiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK (United States); Jamgade, Ambarish; Ali, Imad; Christie, Alana; Thompson, J. Spencer; Thompson, David; Ahmad, Salahuddin; Herman, Terence [Department of Radiation Oncology, Biostatistics and Epidemiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK (United States)

2012-01-01T23:59:59.000Z

162

Effect of Alfaprostol, Lasalocid and Once Daily Suckling on postpartum interval in Brahman and Brahman crossbred cattle  

E-Print Network (OSTI)

by age, breed and date of calving to one of 8 treatments (Table 1): 1) Control; 2) Lasalocid (Hoffmann-LaRoche, Inc. , Nutley, N. J. ); 3) Once daily suckling; 4) Alfaprostol (Hoffmann-LaRoche, Inc. , Nutley, N. J. ); 5) Lasalocid and once daily... by age, breed and date of calving to one of 8 treatments (Table 1): 1) Control; 2) Lasalocid (Hoffmann-LaRoche, Inc. , Nutley, N. J. ); 3) Once daily suckling; 4) Alfaprostol (Hoffmann-LaRoche, Inc. , Nutley, N. J. ); 5) Lasalocid and once daily...

Del Vecchio, Ronald Paul

2012-06-07T23:59:59.000Z

163

Negative ion source with hollow cathode discharge plasma  

DOE Patents (OSTI)

A negative ion source of the type where negative ions are formed by bombarding a low-work-function surface with positive ions and neutral particles from a plasma, wherein a highly ionized plasma is injected into an anode space containing the low-work-function surface. The plasma is formed by hollow cathode discharge and injected into the anode space along the magnetic field lines. Preferably, the negative ion source is of the magnetron type.

Hershcovitch, Ady (Mt. Sinai, NY); Prelec, Krsto (Setauket, NY)

1983-01-01T23:59:59.000Z

164

Negative ion source with hollow cathode discharge plasma  

DOE Patents (OSTI)

A negative ion source of the type where negative ions are formed by bombarding a low-work-function surface with positive ions and neutral particles from a plasma, wherein a highly ionized plasma is injected into an anode space containing the low-work-function surface is described. The plasma is formed by hollow cathode discharge and injected into the anode space along the magnetic field lines. Preferably, the negative ion source is of the magnetron type.

Hershcovitch, A.; Prelec, K.

1980-12-12T23:59:59.000Z

165

A cyclic time-dependent Markov process to model daily patterns in wind turbine power production  

E-Print Network (OSTI)

Wind energy is becoming a top contributor to the renewable energy mix, which raises potential reliability issues for the grid due to the fluctuating nature of its source. To achieve adequate reserve commitment and to promote market participation, it is necessary to provide models that can capture daily patterns in wind power production. This paper presents a cyclic inhomogeneous Markov process, which is based on a three-dimensional state-space (wind power, speed and direction). Each time-dependent transition probability is expressed as a Bernstein polynomial. The model parameters are estimated by solving a constrained optimization problem: The objective function combines two maximum likelihood estimators, one to ensure that the Markov process long-term behavior reproduces the data accurately and another to capture daily fluctuations. A convex formulation for the overall optimization problem is presented and its applicability demonstrated through the analysis of a case-study. The proposed model is capable of r...

Scholz, Teresa; Estanqueiro, Ana

2013-01-01T23:59:59.000Z

166

Operating experience with a daily-dispatched LM-5000 STIG cogeneration plant  

SciTech Connect

The Yuba City Cogeneration Plant is a unique facility as it is a daily-dispatched LM-5000 steam injected gas turbine (STIG) that operates only during the peak summer months. This paper discusses the unique design, operation and maintenance requirements of the LM-5000 STIG. Engine operating history and maintenance problems are discussed. Reliability and availability data for the first three summer peak seasons are presented and compared with other cogeneration plant performance data. Calculations are based on North American Reliability Council/Generating Availability Data System (NERC/GADS) as a basis for operating statistic comparisons (1990). The LM-5000 STIG has demonstrated operating reliability and availability under daily cycling operation that is comparable to other base loaded aero-derivative cogeneration plants.

Peltier, R.V. [Stewart and Stevenson Services, Inc., Houston, TX (United States). Gas Turbine Productions Division; Swanekamp, R.C. [Power Magazine, New York, NY (United States)

1994-12-31T23:59:59.000Z

167

Daily Stress Recognition from Mobile Phone Data, Weather Conditions and Individual Traits  

E-Print Network (OSTI)

Research has proven that stress reduces quality of life and causes many diseases. For this reason, several researchers devised stress detection systems based on physiological parameters. However, these systems require that obtrusive sensors are continuously carried by the user. In our paper, we propose an alternative approach providing evidence that daily stress can be reliably recognized based on behavioral metrics, derived from the user's mobile phone activity and from additional indicators, such as the weather conditions (data pertaining to transitory properties of the environment) and the personality traits (data concerning permanent dispositions of individuals). Our multifactorial statistical model, which is person-independent, obtains the accuracy score of 72.28% for a 2-class daily stress recognition problem. The model is efficient to implement for most of multimedia applications due to highly reduced low-dimensional feature space (32d). Moreover, we identify and discuss the indicators which have stron...

Bogomolov, Andrey; Ferron, Michela; Pianesi, Fabio; Alex,; Pentland,

2014-01-01T23:59:59.000Z

168

Daymet: Daily Surface Weather Data on a 1-km Grid for North America, Version 2.  

SciTech Connect

More information: http://daymet.ornl.gov Presenter: Ranjeet Devarakonda Environmental Sciences Division Oak Ridge National Laboratory (ORNL) Daymet: Daily Surface Weather Data and Climatological Summaries provides gridded estimates of daily weather parameters for North America, including daily continuous surfaces of minimum and maximum temperature, precipitation occurrence and amount, humidity, shortwave radiation, snow water equivalent, and day length. The current data product (Version 2) covers the period January 1, 1980 to December 31, 2013 [1]. The prior product (Version 1) only covered from 1980-2008. Data are available on a daily time step at a 1-km x 1-km spatial resolution in Lambert Conformal Conic projection with a spatial extent that covers the conterminous United States, Mexico, and Southern Canada as meteorological station density allows. Daymet data can be downloaded from 1) the ORNL Distributed Active Archive Center (DAAC) search and order tools (http://daac.ornl.gov/cgi-bin/cart/add2cart.pl?add=1219) or directly from the DAAC FTP site (http://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1219) and 2) the Single Pixel Tool [2] and THREDDS (Thematic Real-time Environmental Data Services) Data Server [3]. The Single Pixel Data Extraction Tool allows users to enter a single geographic point by latitude and longitude in decimal degrees. A routine is executed that translates the (lon, lat) coordinates into projected Daymet (x,y) coordinates. These coordinates are used to access the Daymet database of daily-interpolated surface weather variables. Daily data from the nearest 1 km x 1 km Daymet grid cell are extracted from the database and formatted as a table with one column for each Daymet variable and one row for each day. All daily data for selected years are returned as a single (long) table, formatted for display in the browser window. At the top of this table is a link to the same data in a simple comma-separated text format, suitable for import into a spreadsheet or other data analysis software. The Single Pixel Data Extraction Tool also provides the option to download multiple coordinates programmatically. A multiple extractor script is freely available to download at http://daymet.ornl.gov/files/daymet.zip. The ORNL DAAC s THREDDS data server (TDS) provides customized visualization and access to Daymet time series of North American mosaics. Users can subset and download Daymet data via a variety of community standards, including OPeNDAP, NetCDF Subset service, and Open Geospatial Consortium (OGC) Web Map/Coverage Service. The ORNL DAAC TDS also exposes Daymet metadata through its ncISO service to facilitate harvesting Daymet metadata records into 3rd party catalogs. References: [1] Thornton, P.E., M.M. Thornton, B.W. Mayer, N. Wilhelmi, Y. Wei, R. Devarakonda, and R.B. Cook. 2014. Daymet: Daily Surface Weather Data on a 1-km Grid for North America, Version 2. Data set. Available on-line [http://daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, USA. [2] Devarakonda R., et al. 2012. Daymet: Single Pixel Data Extraction Tool. Available on-line [http://daymet.ornl.go/singlepixel.html]. [3] Wei Y., et al. 2014. Daymet: Thematic Real-time Environmental Data Services. Available on-line [http://daymet.ornl.gov/thredds_tiles.html].

Thornton, Peter E [ORNL; Thornton, Michele M [ORNL; Mayer, Benjamin W [ORNL; Wilhelmi, Nate [National Center for Atmospheric Research (NCAR); Wei, Yaxing [ORNL; Devarakonda, Ranjeet [ORNL; Cook, Robert B [ORNL

2014-01-01T23:59:59.000Z

169

LLaannggeerrhhaannss LLaabb PPrroottooccoollss Live Fish Care Daily Checklist.docx revised 8/9/13 Page 1 of 1  

E-Print Network (OSTI)

LLaannggeerrhhaannss LLaabb PPrroottooccoollss Live Fish Care Daily Checklist.docx revised 8/9/13 Page 1 of 1 Live Fish Care Daily Checklist D. Clark Labs rooms G-06 & G-08 morning visit: Turn) eggs from fridge in room 382; feed the live fish there Feed hatched Artemia (=brine shrimp) to fry

Langerhans, Brian

170

Student Stress Exposure: A Daily Path Perspective on the Connections among Cognition, Place, and the Socioenvironment  

E-Print Network (OSTI)

with synched heart rate monitors and digital audio recorders. Stress as operationalized in this study is a negative cognitive appraisal and related physiological reaction to internal dialogues and the surrounding socio-environment assessed through heart rate...

Williams, Nikki

2012-10-19T23:59:59.000Z

171

Patterns in the daily diary of the 41st president, George Bush  

E-Print Network (OSTI)

fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved by: Chair of Committee, Frank M. Shipman, III Committee Members, Richard K. Furuta Lauren Cifuentes Head of Department, Valerie E. Taylor December 2005 Major... Subject: Computer Science iii ABSTRACT Patterns in the Daily Diary of the 41st President, George Bush. (December 2005) Shreyas Kumar, B. Arch., I.I.T. Roorkee Chair of Advisory Committee: Dr. Frank M. Shipman, III This thesis explores interfaces...

Kumar, Shreyas

2007-04-25T23:59:59.000Z

172

Infectious Disease Updates To minimize the risk of any infectious disease, practice these daily preventive  

E-Print Network (OSTI)

these daily preventive measures: · Cover your nose and mouth with a tissue when you cough or sneeze. Throw seconds), especially after you cough or sneeze. Alcohol-based hand cleaners are an alternative://www.sjsu.edu/studenthealth/cold_flu/index.html http://www.cdph.ca.gov/healthinfo/discond/pages/influenza(flu).aspx 2) Pertussis (Whooping Cough) http://www.sjsu.edu/studenthealth/docs/whooping_cough

Su, Xiao

173

The complex Doppler effect in double negative media  

Science Journals Connector (OSTI)

The Doppler effect in doubly double negative acoustic media is ... ’s functions. It is shown that several Doppler modes can be generated by a monochromatic...

I. V. Lisenkov; S. A. Nikitov

2011-06-01T23:59:59.000Z

174

Daily Thermal Predictions of the AGR-1 Experiment with Gas Gaps Varying with Time  

SciTech Connect

A new daily as-run thermal analysis was performed at the Idaho National Laboratory on the Advanced Gas Reactor (AGR) test experiment number one at the Advanced Test Reactor (ATR). This thermal analysis incorporates gas gaps changing with time during the irradiation experiment. The purpose of this analysis was to calculate the daily average temperatures of each compact to compare with experimental results. Post irradiation examination (PIE) measurements of the graphite holder and fuel compacts showed the gas gaps varying from the beginning of life. The control temperature gas gap and the fuel compact – graphite holder gas gaps were linearly changed from the original fabrication dimensions, to the end of irradiation measurements. A steady-state thermal analysis was performed for each daily calculation. These new thermal predictions more closely match the experimental data taken during the experiment than previous analyses. Results are presented comparing normalized compact average temperatures to normalized log(R/B) Kr-85m. The R/B term is the measured release rate divided by the predicted birth rate for the isotope Kr-85m. Correlations between these two normalized values are presented.

Grant Hawkes; James Sterbentz; John Maki; Binh Pham

2012-06-01T23:59:59.000Z

175

Prediction of clock time hourly global radiation from daily values over  

Open Energy Info (EERE)

Prediction of clock time hourly global radiation from daily values over Prediction of clock time hourly global radiation from daily values over Bangladesh Dataset Summary Description (Abstract): A need for predicting hourly global radiation exists for many locations particularly in Bangladesh for which measured values are not available and daily values have to be estimated from sunshine data. The CPRG model has been used to predict values of hourly Gh for Dhaka (23.770N, 90.380E), Chittagong (22.270N, 91.820E) and Bogra (24.850N, 89.370E) for = ±7.50, ±22.50, ±37.50, ±52.50, ±67.50, ±82.50 and ±97.50 i.e., for ±1/2, ±3/2, ±5/2, ±7/2, ±9/2, ±11/2, ±13/2 hours before and after solar noon and the computed values for different months are symmetrical about solar noon whereas for many months experimental data show a clear asymmetry. To obtain improved

176

Tunable negative-tap photonic microwave filter based on a  

E-Print Network (OSTI)

Tunable negative-tap photonic microwave filter based on a cladding-mode coupler and an optically injected laser of large detuning Sze-Chun Chan,* Qing Liu, Zhu Wang, and Kin Seng Chiang Department: A tunable negative-tap photonic microwave filter using a cladding-mode coupler together with optical

Chan, Sze-Chun

177

Integrating rough set and genetic algorithm for negative rule extraction  

Science Journals Connector (OSTI)

Rule extraction is an important issue in data mining field. In this paper, we study the extraction problem for the complete negative rules of the form ¬R ? ¬D. By integrating rough set theory and genetic algorithm, we propose ... Keywords: genetic algorithm, negative rule, rough sets, rule extraction

Junyu Liu; Yubao Liu; Yan Long

2009-09-01T23:59:59.000Z

178

ccsd00002099, Partial energies uctuations and negative heat  

E-Print Network (OSTI)

ccsd­00002099, version 3 ­ 3 Aug 2004 Partial energies uctuations and negative heat capacities X of potential energies. The possibility to observe negative heat capacities has been recently the object of much ensemble, heat capacities (proportional to the uc- tuations of the energy) are always positive

179

Observation of the negative ions: Ra-, Pa-, and Pu-  

Science Journals Connector (OSTI)

The negative ions of the isotopes Ra226, Pa231, and Pu244 have been observed by means of accelerator mass spectrometry and their properties compared with the negative ions of Th and U. The electron affinities of all these elements have been estimated to be similar and greater than 50 meV.

X.-L. Zhao; M.-J. Nadeau; M. A. Garwan; L. R. Kilius; A. E. Litherland

1993-11-01T23:59:59.000Z

180

Audio Imputation Using the Non-negative Hidden Markov Model  

E-Print Network (OSTI)

Audio Imputation Using the Non-negative Hidden Markov Model Jinyu Han1, , Gautham J. Mysore2. Abstract. Missing data in corrupted audio recordings poses a challeng- ing problem for audio signal-frequency domain of audio signals. The proposed approach, based on the Non- negative Hidden Markov Model, enables

Pardo, Bryan

Note: This page contains sample records for the topic "negative daily imbalances" 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

Number of negative modes of the oscillating bounces  

SciTech Connect

The spectrum of small perturbations about oscillating bounce solutions recently discussed in the literature is investigated. Our study supports quite intuitive and expected result: the bounce with N nodes has exactly N homogeneous negative modes. Existence of more than one negative modes makes obscure the relation of these oscillating bounce solutions to the false vacuum decay processes.

Lavrelashvili, George [Department of Theoretical Physics, University of Geneva, 24 quai Ernest-Ansermet, CH 1211 Geneva 4 (Switzerland) and Department of Theoretical Physics, A.Razmadze Mathematical Institute, GE 0193 Tbilisi (Georgia)

2006-04-15T23:59:59.000Z

182

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

SciTech Connect

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

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

2012-02-15T23:59:59.000Z

183

Daily Modulation as a Smoking Gun of Dark Matter with Significant Stopping  

E-Print Network (OSTI)

We point out that for a range of parameters, the flux of DM may be stopped significantly by its interactions with the Earth. This can significantly degrade the sensitivity of direct detection experiments to DM candidates with large interactions with terrestrial nuclei. We find that a significant region of parameter space remains unconstrained for DM $\\lesssim $ a few GeV. For DM candidates with moderate levels of stopping power, the flux of DM may be blocked from below but not above a detector thereby producing a novel daily modulation. This can be explored by low threshold detectors placed on the surface or in shallow sites in the south hemisphere.

Chris Kouvaris; Ian M. Shoemaker

2014-05-07T23:59:59.000Z

184

Daily Modulation as a Smoking Gun of Dark Matter with Significant Stopping  

E-Print Network (OSTI)

We point out that for a range of parameters, the flux of DM may be stopped significantly by its interactions with the Earth. This can significantly degrade the sensitivity of direct detection experiments to DM candidates with large interactions with terrestrial nuclei. We find that a significant region of parameter space remains unconstrained for DM $\\lesssim $ a few GeV. For DM candidates with moderate levels of stopping power, the flux of DM may be blocked from below but not above a detector thereby producing a novel daily modulation. This can be explored by low threshold detectors placed on the surface or in shallow sites in the south hemisphere.

Kouvaris, Chris

2014-01-01T23:59:59.000Z

185

Negative particle planar and axial channeling and channeling collimation  

SciTech Connect

While information exists on high energy negative particle channeling there has been little study of the challenges of negative particle bending and channeling collimation. Partly this is because negative dechanneling lengths are relatively much shorter. Electrons are not particularly useful for investigating negative particle channeling effects because their material interactions are dominated by channeling radiation. Another important factor is that the current central challenge in channeling collimation is the proton-proton Large Hadron Collider (LHC) where both beams are positive. On the other hand in the future the collimation question might reemerge for electon-positron or muon colliders. Dechanneling lengths increase at higher energies so that part of the negative particle experimental challenge diminishes. In the article different approaches to determining negative dechanneling lengths are reviewed. The more complicated case for axial channeling is also discussed. Muon channeling as a tool to investigate dechanneling is also discussed. While it is now possible to study muon channeling it will probably not illuminate the study of negative dechanneling.

Carrigan, Richard A., Jr.; /Fermilab

2009-12-01T23:59:59.000Z

186

Noise reduction in negative-ion quadrupole mass spectrometry  

DOE Patents (OSTI)

A quadrupole mass spectrometer (QMS) system having an ion source, quadrupole mass filter, and ion collector/recorder system. A weak, transverse magnetic field and an electron collector are disposed between the quadrupole and ion collector. When operated in negative ion mode, the ion source produces a beam of primarily negatively-charged particles from a sample, including electrons as well as ions. The beam passes through the quadrupole and enters the magnetic field, where the electrons are deflected away from the beam path to the electron collector. The negative ions pass undeflected to the ion collector where they are detected and recorded as a mass spectrum.

Chastagner, Philippe (3134 Natalie Cir., Augusta, GA 30909-2748)

1993-01-01T23:59:59.000Z

187

Daily prediction of short-term trends of crude oil prices using neural networks exploiting multimarket dynamics  

Science Journals Connector (OSTI)

This paper documents a systematic investigation on the predictability of short-term trends of crude oil prices on a daily basis. In stark contrast with longer-term predictions of crude oil prices, short-term pred...

Heping Pan; Imad Haidar; Siddhivinayak Kulkarni

2009-06-01T23:59:59.000Z

188

Circulation patterns, daily precipitation in Portugal and implications for climate change simulated by the second Hadley Centre GCM  

Science Journals Connector (OSTI)

Based on principal component analysis (PCA) and a k...-means clustering algorithm, daily mean sea level pressure (MSLP) fields over the northeastern Atlantic and Western Europe, simulated by the Hadley Centre's ...

J. Corte-Real; B. Quian; H. Xu

1999-12-01T23:59:59.000Z

189

EIA - Daily Report 9/13/05 - Hurricane Katrina's Impact on U.S. Oil &  

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

Tuesday, September 13, 4:00 pm Tuesday, September 13, 4:00 pm According to the Minerals Management Service (MMS), as of 11:30 September 12, Gulf of Mexico oil production was reduced by 846,720 barrels per day as a result of Hurricane Katrina, equivalent to 56.45 percent of daily Gulf of Mexico oil production (which had been1.5 million barrels per day). The MMS also reported that 3.720 billion cubic feet per day of natural gas production was shut in, equivalent to 37.20 percent of daily Gulf of Mexico natural gas production (which had been 10 billion cubic feet per day). EIA released its monthly Short-Term Energy Outlook on Wednesday, September 7. Because considerable uncertainty remains regarding the extent of Katrina's damage, EIA established three basic recovery scenarios to represent a range of plausible outcomes for oil and natural gas supply over the next several months and through 2006: (1) Fast Recovery, which assumes a very favorable set of circumstances for getting supplies back to normal; (2) Slow Recovery, which assumes that significant outages in oil and natural gas production and delivery from the Gulf area continue at least into November; and (3) Medium Recovery, which assumes a path in between Slow and Fast Recovery.

190

Daily movements of female white-tailed deer relative to parturition and breeding.  

SciTech Connect

Abstract: To assess how white-tailed deer (Odocoileus virginianus) herd demographics influence reproductive behaviors, we examined 24-h diel movements of female whitetailed deer relative to parturition and breeding in a low-density population with a near even sex ratio at the Savannah River Site (SRS), South Carolina. We conducted a series of intensive, 24-h radio-tracking periods of 13 females during spring and fall 2002. We compared daily range (ha), rate of travel (m/h), and distance between extreme daily locations (m), among the periods of pre-parturition and post-parturition and pre-, peak-, and post-rut. From pre-parturition to post-parturition, we observed decreases in diel range size (�¢����38.2%), distance between extreme diel locations (�¢����17.0%), and diel rate of travel (�¢����18.2%). Diel range size, distance between extreme diel locations, and diel rate of travel during the pre-rut and rut exceeded those observed during post-rut. We further identified substantial increases in mobility during 12 24-h diel periods for eight females during our fall monitoring. Our data suggest that female white-tailed deer reduce mobility post-fawning following exaggerated movements during pre-parturition. Furthermore, despite a near equal sex ratio, estrous does may be required to actively seek potential mates due to low population density.

Gino J. D'Angelo; Christopher E. Comer; John C. Kilgo; Cory D. Drennan; David A. Osborn; Karl V. Miller

2005-10-01T23:59:59.000Z

191

Daily dispersion model calculations of the Kuwait oil fire smoke plume  

SciTech Connect

The Atmospheric Release Advisory Capability (ARAC) provided daily forecasts of the position and spatial character of the Kuwait oil fire smoke plume to the NSF-coordinated research aircraft missions in the Persian Gulf. ARAC also provided daily plume dispersion products to various nations in the Persian Gulf region under the auspices of the World Meteorological Organization for a period of nearly 5 months. Forecasted three dimensional winds were provided to ARAC from the US Air Force Global Weather Central`s Relocatable Wind Model (RWM). The RWM winds were spaced approximately 90 km in the horizontal and were located at the surface, 1000 ft., 2000 ft, 5000 ft and every 5000 ft up to 30,000 ft elevation. The forecast periods were 0, 6, 24, and 36 hours from both 0000 and 1200 UTC. A wind field model (MATHEW) corrected for terrain influences on the wind. The smoke plume was dispersed using a three dimensional particle-in-cell code (ADPIC) with buoyant plume rise capability. Multiple source locations were used to represent the burning oil fields. Improved estimates of the source term and emission factors for the smoke were incorporated into the ADPIC calculations as the field measurement data were made available.

Ellis, J.S.; Foster, C.S.; Foster, K.T.; Sullivan, T.J. [Lawrence Livermore National Lab., CA (United States); Baskett, R.L.; Nasstrom, J.S.; Schalk, W.W. III [EG and G Energy Measurements, Inc., Pleasanton, CA (United States); Greenly, G.D. [IT Corp., Irvine, CA (United States)

1992-03-26T23:59:59.000Z

192

Daily dispersion model calculations of the Kuwait oil fire smoke plume  

SciTech Connect

The Atmospheric Release Advisory Capability (ARAC) provided daily forecasts of the position and spatial character of the Kuwait oil fire smoke plume to the NSF-coordinated research aircraft missions in the Persian Gulf. ARAC also provided daily plume dispersion products to various nations in the Persian Gulf region under the auspices of the World Meteorological Organization for a period of nearly 5 months. Forecasted three dimensional winds were provided to ARAC from the US Air Force Global Weather Central's Relocatable Wind Model (RWM). The RWM winds were spaced approximately 90 km in the horizontal and were located at the surface, 1000 ft., 2000 ft, 5000 ft and every 5000 ft up to 30,000 ft elevation. The forecast periods were 0, 6, 24, and 36 hours from both 0000 and 1200 UTC. A wind field model (MATHEW) corrected for terrain influences on the wind. The smoke plume was dispersed using a three dimensional particle-in-cell code (ADPIC) with buoyant plume rise capability. Multiple source locations were used to represent the burning oil fields. Improved estimates of the source term and emission factors for the smoke were incorporated into the ADPIC calculations as the field measurement data were made available.

Ellis, J.S.; Foster, C.S.; Foster, K.T.; Sullivan, T.J. (Lawrence Livermore National Lab., CA (United States)); Baskett, R.L.; Nasstrom, J.S.; Schalk, W.W. III (EG and G Energy Measurements, Inc., Pleasanton, CA (United States)); Greenly, G.D. (IT Corp., Irvine, CA (United States))

1992-03-26T23:59:59.000Z

193

EIA - Daily Report 9/15/05 - Hurricane Katrina's Impact on U.S. Oil &  

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

Thursday, September 15, 3:00 pm Thursday, September 15, 3:00 pm According to the Minerals Management Service (MMS), as of 11:30 September 15, Gulf of Mexico oil production was reduced by 842,091 barrels per day as a result of Hurricane Katrina, equivalent to 56.14 percent of daily Gulf of Mexico oil production (which had been 1.5 million barrels per day). The MMS also reported that 3.411 billion cubic feet per day of natural gas production was shut in, equivalent to 34.11 percent of daily Gulf of Mexico natural gas production (which had been 10 billion cubic feet per day). EIA released its monthly Short-Term Energy Outlook on Wednesday, September 7, taking into consideration three Hurricane Katrina recovery scenarios. Petroleum As of the close of trading on Thursday, September 15, crude oil and petroleum product prices were lower, compared to the closing prices from Wednesday, September 14. The gasoline near-month futures price was down by 3.9 cents per gallon from Wednesday, settling at 189.9 cents per gallon, while the heating oil near-month futures price was down 1.3 cents per gallon, settling at 191.2 cents per gallon. The NYMEX West Texas Intermediate (WTI) crude oil futures price was down $0.34 per barrel from Wednesday, settling at $64.75.

194

EIA - Daily Report 9/12/05 - Hurricane Katrina's Impact on U.S. Oil &  

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

2, 5:00 pm 2, 5:00 pm According to the Minerals Management Service (MMS), as of 11:30 September 12, Gulf of Mexico oil production was reduced by 860,636 barrels per day as a result of Hurricane Katrina, equivalent to 57.38 percent of daily Gulf of Mexico oil production (which is 1.5 million barrels per day). The MMS also reported that 3.784 billion cubic feet per day of natural gas production was shut in, equivalent to 37.84 percent of daily Gulf of Mexico natural gas production (which is 10 billion cubic feet per day). EIA released its monthly Short-Term Energy Outlook on Wednesday, September 7. Because considerable uncertainty remains regarding the extent of Katrina's damage, EIA established three basic recovery scenarios to represent a range of plausible outcomes for oil and natural gas supply over the next several months and through 2006: (1) Fast Recovery, which assumes a very favorable set of circumstances for getting supplies back to normal; (2) Slow Recovery, which assumes that significant outages in oil and natural gas production and delivery from the Gulf area continue at least into November; and (3) Medium Recovery, which assumes a path in between Slow and Fast Recovery.

195

Spatial and temporal variability of the frequency of extreme daily rainfall regime in the La Plata Basin during the 20th century  

Science Journals Connector (OSTI)

We analyzed trends, interdecadal variability, and the quantification of the changes in the frequency of daily rainfall for two thresholds: 0.1 mm and percentile 75th, using high quality daily series from 52 st...

Olga C. Penalba; Federico A. Robledo

2010-02-01T23:59:59.000Z

196

Negative pressure characteristics of an evaporating meniscus at nanoscale  

E-Print Network (OSTI)

This study aims at understanding the characteristics of negative liquid pressures at the nanoscale using molecular dynamics simulation. A nano-meniscus is formed by placing liquid argon on a platinum wall between two ...

Maroo, Shalabh C.

2011-01-01T23:59:59.000Z

197

Frictional accumulation of negative muons and its application  

Science Journals Connector (OSTI)

A novel method is proposed for the efficient conversion of intermediate energy negative muons into a low-energy muon beam. It is based on using an electric field to eject muons from a moderator consisting of a la...

D. Taqqu

1996-01-01T23:59:59.000Z

198

Negative learning Michael Oppenheimer & Brian C. O'Neill &  

E-Print Network (OSTI)

Negative learning Michael Oppenheimer & Brian C. O'Neill & Mort Webster Received: 12 January 2007. Oppenheimer Woodrow Wilson School of Public and International Affairs, Princeton University, Princeton, NJ, USA M. Oppenheimer (*) Department of Geosciences, Princeton University, Princeton, NJ, USA e

Oppenheimer, Michael

199

Active negative-index metamaterial powered by an electron beam  

E-Print Network (OSTI)

An active negative index metamaterial that derives its gain from an electron beam is introduced. The metamaterial consists of a stack of equidistant parallel metal plates perforated by a periodic array of holes shaped as ...

Shapiro, Michael

200

Chirality-induced negative refraction in magnetized plasma  

SciTech Connect

Characteristic equations in magnetized plasma with chirality are derived in simple formulations and the dispersion relations for propagation parallel and perpendicular to the external magnetic field are studied in detail. With the help of the dispersion relations of each eigenwave, the author explores chirality-induced negative refraction in magnetized plasma and investigates the effects of parameters (i.e., chirality degree, external magnetic field, etc.) on the negative refraction. The results show that the chirality is the necessary and only one factor which leads to negative refraction without manipulating electrical permittivity and magnetic permeability. Both increasing the degree of chirality and reducing the external magnetic field can result in greater range negative refraction. Parameter dependence of the effects is calculated and discussed.

Guo, B. [School of Science, Wuhan University of Technology, Wuhan 430070 (China)] [School of Science, Wuhan University of Technology, Wuhan 430070 (China)

2013-09-15T23:59:59.000Z

Note: This page contains sample records for the topic "negative daily imbalances" from the National Library of EnergyBeta (NLEBeta).
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to obtain the most current and comprehensive results.


201

Negative-potential operation of TMX-Upgrade  

SciTech Connect

A tandem-mirror configuration can be created by combining hot electron end-cell plasmas with neutral-beam pumping. A region of large negative potential formed in each end cell confines electrons in the central cell. The requirement of charge neutrality causes the central-cell potential to become negative with respect to ground in order to equate ion loss to electron loss. Start-up and formation of the axial potential distribution, neutral-beam pumping, hot electron feed, electron-cyclotron-resonance heating (ECRH) power requirements, and stability are discussed in general terms. Each of these considerations impose constraints on the operation of TMX as a negative machine. The start-up requirements and scenario are also presented. Work on the design and analysis of negative tandems is continuing. The status of work to date is presented here with problem areas for future work identified.

Poulsen, P.; Allen, S.L.; Baldwin, D.E.

1982-04-06T23:59:59.000Z

202

California Policy Stimulates Carbon Negative CNG for Heavy Duty...  

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

Negative CNG for Heavy Duty Trucks Describes system for fueling truck fleet with biomethane generated from anaerobic digestion of organic waste it collects p-10edgar.pdf More...

203

Estimation of common k for negative binomial distributions  

E-Print Network (OSTI)

ESTIMATION OF COMMON K FOR NEGATIVE BINOMIAL DISTRIBUTIONS A Thesis LUCIANA MARTA Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December 1982 Major... of Department) December 1982 ABSTRACT Estimation of Common k for Negative Binomial Distributions. (December 1982) Luciana Marts, B. S. , Univ. Nacional de Rosario, Argentina. Chairman of Advisory Committee: Dr. James H. Natis, Two aspects of estimating a...

Marta, Luciana

1982-01-01T23:59:59.000Z

204

Negative mass bubbles in de Sitter space-time  

E-Print Network (OSTI)

We study the possibility of the existence of negative mass bubbles within a de Sitter space-time background with matter content corresponding to a perfect fluid. It is shown that there exist configurations of the perfect fluid, that everywhere satisfy the dominant energy condition, the Einstein equations and the equations of hydrostatic equilibrium, however asymptotically approach the exact solution of Schwarzschid-de Sitter space-time with a negative mass.

Mbarek, Saoussen

2014-01-01T23:59:59.000Z

205

Negative mass bubbles in de Sitter space-time  

E-Print Network (OSTI)

We study the possibility of the existence of negative mass bubbles within a de Sitter space-time background with matter content corresponding to a perfect fluid. It is shown that there exist configurations of the perfect fluid, that everywhere satisfy the dominant energy condition, the Einstein equations and the equations of hydrostatic equilibrium, however asymptotically approach the exact solution of Schwarzschid-de Sitter space-time with a negative mass.

Saoussen Mbarek; M. B. Paranjape

2014-07-06T23:59:59.000Z

206

EIA - Daily Report 9/16/05 - Hurricane Katrina's Impact on U.S. Oil &  

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

16, 4:00 pm 16, 4:00 pm Hurricane Katrina in Perspective (see figures below) While the peak crude oil production loss from Hurricane Katrina was similar to Hurricane Ivan last year and even less than Hurricane Dennis earlier this year, the pace of restoration is expected to be much more similar to Hurricane Ivan than any of the other recent hurricanes. For example, while the peak daily loss in crude oil production during Hurricane Dennis was slightly more than suffered following Hurricane Katrina, within a week of the peak loss, crude oil production following Hurricane Dennis was back to normal while it will likely be months before crude oil production is back to normal following Hurricane Katrina. Graph of Gulf of Mexico Shut-In Oil & Natural Gas Production due to hurricanes in 2004 & 2005

207

Daily Temperature and Precipitation Data from 223 Former-USSR Stations  

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

Climate Variables » Temperature » 223 Former-USSR Stations Climate Variables &#187; Temperature &#187; 223 Former-USSR Stations Daily Temperature and Precipitation Data for 223 Former-USSR Stations graphics Graphics data Data Investigators V. N. Razuvaev, E. B. Apasova, R. A. Martuganov All-Russian Research Institute of Hydrometeorological Information-World Data Centre Obninsk, Russia DOI 10.3334/CDIAC/cli.ndp040 Period of Record 1881 - 2001 (depending on station) Background Over the past several decades, many climate datasets have been exchanged directly between the principal climate data centers of the United States (NOAA's National Climatic Data Center (NCDC)) and the former-USSR/Russia (All-Russian Research Institute for Hydrometeorological Information (RIHMI)). This data exchange has its roots in a bilateral initiative known

208

Testing for price response asymmetries in the Spanish fuel market. New evidence from daily data  

Science Journals Connector (OSTI)

In this work we use daily data to examine pattern asymmetries in the speed of transmission of international wholesale oil prices to Spanish retail fuel prices. Results are robust to two alternative specifications of an asymmetric error correction model, for which the presence of autoregressive conditional heteroskedasticity for disturbances is modeled by a GARCH(1,1) process. Evidence indicates that the short-term transmission of wholesale prices to retail prices is quite symmetric for both gasoline and diesel fuel. Nevertheless, in contrast to some of the results provided for an earlier period, we did not find asymmetries in the speed of retail price responses toward long-run equilibrium. Our evidence also suggests that the use of weekly (or lower frequency) data is one of the possible explanations for some of the seemingly contradictory results concerning this issue.

Jacint Balaguer; Jordi Ripollés

2012-01-01T23:59:59.000Z

209

Incorporating daily flood control objectives into a monthly stochastic dynamic programming model for a hydroelectric complex  

SciTech Connect

A monthly stochastic dynamic programing model was recently developed and implemented at British Columbia (B.C.) Hydro to provide decision support for short-term energy exports and, if necessary, for flood control on the Peace River in northern British Columbia. The model established the marginal cost of supplying energy from the B.C. Hydro system, as well as a monthly operating policy for the G.M. Shrum and Peace Canyon hydroelectric plants and the Williston Lake storage reservoir. A simulation model capable of following the operating policy then determines the probability of refilling Williston Lake and possible spill rates and volumes. Reservoir inflows are input to both models in daily and monthly formats. The results indicate that flood control can be accommodated without sacrificing significant export revenue.

Druce, D.J. (British Columbia Hydro and Power Authority, Vancouver, British Columbia (Canada))

1990-01-01T23:59:59.000Z

210

EIA - Daily Report 9/19/05 - Hurricane Katrina's Impact on U.S. Oil &  

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

Monday, September 19, 5:00 pm Monday, September 19, 5:00 pm Hurricane Katrina in Perspective (see figures below). While the peak crude oil production loss from Hurricane Katrina was similar to 2004's Hurricane Ivan and even less than Hurricane Dennis earlier this year, the pace of restoration is expected to be much more similar to Hurricane Ivan than any of the other recent hurricanes. For example, while the peak daily loss in crude oil production during Hurricane Dennis was slightly more than suffered following Hurricane Katrina, within a week of the peak loss, crude oil production following Hurricane Dennis was back to normal while it will likely be months before crude oil production is back to normal following Hurricane Katrina. New York Mercantile Exchange (NYMEX) prices increased initially following the hurricane. Since early September, product prices generally have declined (increasing on September 19 with news of Tropical Storm Rita approaching the Gulf of Mexico).

211

EIA - Daily Report 9/7/05 - Hurricane Katrina's Impact on U.S. Oil &  

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

7, 3:00 pm 7, 3:00 pm According to the Minerals Management Service (MMS), as of 11:30 September 7, Gulf of Mexico oil production was reduced by 861,000 barrels per day as a result of Hurricane Katrina, equivalent to 57.37 percent of daily Gulf of Mexico oil production (which is 1.5 million barrels per day). The MMS also reported that 4.0360 billion cubic feet per day of natural gas production was shut in, equivalent to 40.36 percent of daily Gulf of Mexico natural gas production (which is 10 billion cubic feet per day). EIA released its monthly Short-Term Energy Outlook on Wednesday, September 7. Because considerable uncertainty remains regarding the specific extent of Katrina's damage, it is difficult to provide a single forecast for the upcoming winter and subsequent months as is typical in Outlook. More detailed damage assessments should be forthcoming over the next several weeks, which should clarify our forecast. For the September Outlook, EIA established three basic scenarios to represent a range of plausible outcomes for oil and natural gas supply over the next several months and through 2006: (1) Fast Recovery, which assumes a very favorable set of circumstances for getting supplies back to normal; (2) Slow Recovery, which assumes that significant outages in oil and natural gas production and delivery from the Gulf area continue at least into November; and (3) Medium Recovery, which assumes a path in between Slow and Fast Recovery. In all cases, return to normal operations, in terms of oil and natural gas production and distribution, is achieved or nearly achieved by December. By the end of September all but about 0.9 million barrels per day of crude oil refining capacity is expected to be back at full rates under the Medium Recovery case.

212

Forecasting of preprocessed daily solar radiation time series using neural networks  

SciTech Connect

In this paper, we present an application of Artificial Neural Networks (ANNs) in the renewable energy domain. We particularly look at the Multi-Layer Perceptron (MLP) network which has been the most used of ANNs architectures both in the renewable energy domain and in the time series forecasting. We have used a MLP and an ad hoc time series pre-processing to develop a methodology for the daily prediction of global solar radiation on a horizontal surface. First results are promising with nRMSE {proportional_to} 21% and RMSE {proportional_to} 3.59 MJ/m{sup 2}. The optimized MLP presents predictions similar to or even better than conventional and reference methods such as ARIMA techniques, Bayesian inference, Markov chains and k-Nearest-Neighbors. Moreover we found that the data pre-processing approach proposed can reduce significantly forecasting errors of about 6% compared to conventional prediction methods such as Markov chains or Bayesian inference. The simulator proposed has been obtained using 19 years of available data from the meteorological station of Ajaccio (Corsica Island, France, 41 55'N, 8 44'E, 4 m above mean sea level). The predicted whole methodology has been validated on a 1.175 kWc mono-Si PV power grid. Six prediction methods (ANN, clear sky model, combination..) allow to predict the best daily DC PV power production at horizon d + 1. The cumulated DC PV energy on a 6-months period shows a great agreement between simulated and measured data (R{sup 2} > 0.99 and nRMSE < 2%). (author)

Paoli, Christophe; Muselli, Marc; Nivet, Marie-Laure [University of Corsica, CNRS UMR SPE, Corte (France); Voyant, Cyril [University of Corsica, CNRS UMR SPE, Corte (France); Hospital of Castelluccio, Radiotherapy Unit, Ajaccio (France)

2010-12-15T23:59:59.000Z

213

Assessing Energy Impact of Plug-In Hybrid Electric Vehicles: Significance of Daily Distance Variation over Time and Among Drivers  

SciTech Connect

Accurate assessment of the impact of plug-in hybrid electric vehicles (PHEVs) on petroleum and electricity consumption is a necessary step toward effective policies. Variations in daily vehicle miles traveled (VMT) over time and among drivers affect PHEV energy impact, but the significance is not well understood. This paper uses a graphical illustration, a mathematical derivation, and an empirical study to examine the cause and significance of such an effect. The first two methods reveal that ignoring daily variation in VMT always causes underestimation of petroleum consumption and overestimation of electricity consumption by PHEVs; both biases increase as the assumed PHEV charge-depleting (CD) range moves closer to the average daily VMT. The empirical analysis based on national travel survey data shows that the assumption of uniform daily VMT over time and among drivers causes nearly 68% underestimation of expected petroleum use and nearly 48% overestimation of expected electricity use by PHEVs with a 40-mi CD range (PHEV40s). Also for PHEV40s, consideration of daily variation in VMT over time but not among drivers similar to the way the utility factor curve is derived in SAE Standard SAE J2841 causes underestimation of expected petroleum use by more than 24% and overestimation of expected electricity use by about 17%. Underestimation of petroleum use and overestimation of electricity use increase with larger-battery PHEVs.

Lin, Zhenhong [ORNL; Greene, David L [ORNL

2012-01-01T23:59:59.000Z

214

Negative kinetic energy term of general relativity and its removing  

E-Print Network (OSTI)

We first present a new Lagrangian of general relativity, which can be divided into kinetic energy term and potential energy term. Taking advantage of vierbein formalism, we reduce the kinetic energy term to a sum of five positive terms and one negative term. Some gauge conditions removing the negative kinetic energy term are discussed. Finally, we present a Lagrangian that only include positive kinetic energy terms. To remove the negative kinetic energy term leads to a new field equation of general relativity in which there are at least five equations of constraint and at most five dynamical equations, this characteristic is different from the normal Einstein field equation in which there are four equations of constraint and six dynamical equations.

T. Mei

2009-03-30T23:59:59.000Z

215

Device for translating negative film image to a line scan  

DOE Patents (OSTI)

A negative film reader records high-resolution optical density changes across negative film radiographic images to allow precise image dimensions to be determined. A laser light source capable of high-resolution focusing is passed through an intensity control filter, focused by a lens, and reflected off a mirror to focus in the plane of the negative film. The light transmitted through the film is collected by a second lens and directed to a photo diode detector which senses the transmitted intensity. The output of the photo diode signal amplifier is sent to the Y-axis input of an X-Y recorder. The film sample is transported in a plane perpendicular to the beam axis by means of a slide. The film position is monitored, with the signal amplified and recorded as the X-axis on the X-Y recorder. The linear dimensions and positions of image components can be determined by direct measurement of the amplified recording.

Dutton, G.W.

1998-05-19T23:59:59.000Z

216

Magnetic Moments of Negative-Parity Baryons from Lattice QCD  

E-Print Network (OSTI)

We report preliminary results for the magnetic moments of negative-parity baryons extracted from mass shifts in the presence of static external magnetic fields. The calculations are done on $24^3\\times 48$ quenched lattices using standard Wilson actions, with $\\beta$=6.0 and pion mass down to about 520 MeV, and 1000 configurations. Reasonable signals for the negative-parity states are observed and the sign of their magnetic moments is established. The results are compared to model calculations.

Frank X. Lee; Andrei Alexandru

2010-11-18T23:59:59.000Z

217

Negative compressibility observed in graphene containing resonant impurities  

SciTech Connect

We observed negative compressibility in monolayer graphene containing resonant impurities under different magnetic fields. Hydrogenous impurities were introduced into graphene by electron beam (e-beam) irradiation. Resonant states located in the energy region of {+-}0.04 eV around the charge neutrality point were probed in e-beam-irradiated graphene capacitors. Theoretical results based on tight-binding and Lifshitz models agreed well with experimental observations of graphene containing a low concentration of resonant impurities. The interaction between resonant states and Landau levels was detected by varying the applied magnetic field. The interaction mechanisms and enhancement of the negative compressibility in disordered graphene are discussed.

Chen, X. L.; Wang, L.; Li, W.; Wang, Y.; He, Y. H.; Wu, Z. F.; Han, Y.; Zhang, M. W.; Xiong, W.; Wang, N. [Department of Physics and The William Mong Institute of Nano Science and Technology, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong (China)] [Department of Physics and The William Mong Institute of Nano Science and Technology, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong (China)

2013-05-20T23:59:59.000Z

218

Reducing Open Cell Landfill Methane Emissions with a Bioactive Alternative Daily  

SciTech Connect

Methane and carbon dioxide are formed in landfills as wastes degrade. Molecule-for-molecule, methane is about 20 times more potent than carbon dioxide at trapping heat in the earth's atmosphere, and thus, it is the methane emissions from landfills that are scrutinized. For example, if emissions composed of 60% methane and 40% carbon dioxide were changed to a mix that was 40% methane and 60% carbon dioxide, a 30% reduction in the landfill's global warming potential would result. A 10% methane, 90% carbon dioxide ratio will result in a 75% reduction in global warming potential compared to the baseline. Gas collection from a closed landfill can reduce emissions, and it is sometimes combined with a biocover, an engineered system where methane oxidizing bacteria living in a medium such as compost, convert landfill methane to carbon dioxide and water. Although methane oxidizing bacteria merely convert one greenhouse gas (methane) to another (carbon dioxide), this conversion can offer significant reductions in the overall greenhouse gas contribution, or global warming potential, associated with the landfill. What has not been addressed to date is the fact that methane can also escape from a landfill when the active cell is being filled with waste. Federal regulations require that newly deposited solid waste to be covered daily with a 6 in layer of soil or an alternative daily cover (ADC), such as a canvas tarp. The aim of this study was to assess the feasibility of immobilizing methane oxidizing bacteria into a tarp-like matrix that could be used for alternative daily cover at open landfill cells to prevent methane emissions. A unique method of isolating methanotrophs from landfill cover soil was used to create a liquid culture of mixed methanotrophs. A variety of prospective immobilization techniques were used to affix the bacteria in a tarp-like matrix. Both gel encapsulation of methanotrophs and gels with liquid cores containing methanotrophs were readily made but prone to rapid desiccation. Bacterial adsorption onto foam padding, natural sponge, and geotextile was successful. The most important factor for success appeared to be water holding capacity. Prototype biotarps made with geotextiles plus adsorbed methane oxidizing bacteria were tested for their responses to temperature, intermittent starvation, and washing (to simulate rainfall). The prototypes were mesophilic, and methane oxidation activity remained strong after one cycle of starvation but then declined with repeated cycles. Many of the cells detached with vigorous washing, but at least 30% appeared resistant to sloughing. While laboratory landfill simulations showed that four-layer composite biotarps made with two different types of geotextile could remove up to 50% of influent methane introduced at a flux rate of 22 g m{sup -2} d{sup -1}, field experiments did not yield high activity levels. Tests revealed that there were high hour-to-hour flux variations in the field, which, together with frequent rainfall events, confounded the field testing. Overall, the findings suggest that a methanotroph embedded biotarp appears to be a feasible strategy to mitigate methane emission from landfill cells, although the performance of field-tested biotarps was not robust here. Tarps will likely be best suited for spring and summer use, although the methane oxidizer population may be able to shift and adapt to lower temperatures. The starvation cycling of the tarp may require the capacity for intermittent reinoculation of the cells, although it is also possible that a subpopulation will adapt to the cycling and become dominant. Rainfall is not expected to be a major factor, because a baseline biofilm will be present to repopulate the tarp. If strong performance can be achieved and documented, the biotarp concept could be extended to include interception of other compounds beyond methane, such as volatile aromatic hydrocarbons and chlorinated solvents.

Helene Hilger; James Oliver; Jean Bogner; David Jones

2009-03-31T23:59:59.000Z

219

Daily load profile and monthly power peaks evaluation of the urban substation of the capital of Jordan Amman  

Science Journals Connector (OSTI)

The hourly recorded power of an urban substation of the National Electric Power Company (NEPCO) in the capital of Jordan Amman is used to calculate the diversity and conversion factors of the substation. These factors are used to estimate the daily load power profile and the monthly peak power of the substation. The results show that the conversion factors are almost independent of the number of feeders in the substation, while the diversity factors vary in substations that have six feeders or less. The results show a good correlation between the estimated and actual recorded data of the daily load profile with less than 5% percentage error.

Nabeel I.A. Tawalbeh

2012-01-01T23:59:59.000Z

220

VOICE CONVERSION BASED ON NON-NEGATIVE MATRIX FACTORIZATION USING PHONEME-CATEGORIZED DICTIONARY  

E-Print Network (OSTI)

VOICE CONVERSION BASED ON NON-NEGATIVE MATRIX FACTORIZATION USING PHONEME-CATEGORIZED DICTIONARY using Non-negative matrix factorization (NMF) is employed for spectral conversion between different conversion, sparse representation, non- negative matrix factorization, sub-dictionary 1. INTRODUCTION

Takiguchi, Tetsuya

Note: This page contains sample records for the topic "negative daily imbalances" 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
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221

Negative Feedback Facilitates Temperature Robustness in Biomolecular Circuit Dynamics  

E-Print Network (OSTI)

on circuit dynamics. Further, we find that eective negative feedback due to first-order degradation this goal of functional robustness have proceeded at multiple levels. At one level, there have been eorts, in the study of naturally occurring biomolecular circuits, robustness to the impor- tant environmental variable

Murray, Richard M.

222

LM137/LM337 3-Terminal Adjustable Negative Regulators  

E-Print Network (OSTI)

LM137/LM337 3-Terminal Adjustable Negative Regulators General Description The LM137/LM337 design has been opti- mized for excellent regulation and low thermal transients. Further, the LM137 virtually blowout-proof against overloads. The LM137/LM337 serve a wide variety of applications in- cluding

Ravikumar, B.

223

LM137/LM337 3-Terminal Adjustable Negative Regulators  

E-Print Network (OSTI)

LM137/LM337 3-Terminal Adjustable Negative Regulators General Description The LM137/LM337. The circuit design has been opti- mized for excellent regulation and low thermal transients. Further, the LM them virtually blowout-proof against overloads. The LM137/LM337 serve a wide variety of applications in

Berns, Hans-Gerd

224

LM79XX Series 3-Terminal Negative Regulators  

E-Print Network (OSTI)

LM79XX Series 3-Terminal Negative Regulators General Description The LM79XX series of 3-terminal external component -- a compensation ca- pacitor at the output. The LM79XX series is packaged in the TO-220 conditions. Low ground pin current of the LM79XX series allows output voltage to be easily boosted above

Berns, Hans-Gerd

225

Negative ions in a radio-frequency oxygen plasma  

Science Journals Connector (OSTI)

A systematic study of a low pressure (5–200 mTorr) oxygen discharge is presented. Measurements of the electron and negative ion densities in the 13.56 MHz capacitively coupled plasma are performed by means of a microwave resonance technique in combination with photodetachment. A kinetic model is developed, incorporating volume and wall reactions of ions as well as neutral species. It is shown, by matching the experimental results with the model, that the dominant ion is O- whereas the O2- and O3- densities reach 10 to 20 % of the total negative ion density. The ratio of negative ion to electron density varies between 5 and 10 and decreases with pressure and rf power. The total negative ion density is about 5×1015 m-3, it increases with gas flow, is independent of the rf input power, and has a maximum at a pressure of 30 mTorr. The agreement between the measurements and the model is within the experimental error for a wide range of conditions. Deviations are explained by changes in the gas and wall temperatures. From the known ion density the effective ionization rate has been determined and related to the electron temperature. The ionization temperature obtained in this way varies between 2 and 4 eV and decreases with increasing gas pressure and power, as expected for the bulk electron temperature in this type of discharge.

E. Stoffels; W. W. Stoffels; D. Vender; M. Kando; G. M. W. Kroesen; F. J. de Hoog

1995-03-01T23:59:59.000Z

226

Carbon Sequestration May Have Negative Impacts on Ecosystem Health  

Science Journals Connector (OSTI)

Carbon Sequestration May Have Negative Impacts on Ecosystem Health ... Yin, R.; Sedjo, R.; Liu, P.The potential and challenges of sequestering carbon and generating other services in China’s forest ecosystems Environ. ... A discussion of whether climate change in China can be mitigated by expanding its forest area by 40 million ha to sequester C (CO2 emissions). ...

Yafeng Wang; Shixiong Cao

2011-02-10T23:59:59.000Z

227

The simplest three body system: Positronium negative ions  

SciTech Connect

The positron, an anti-particle of the electron, can bind with an electron to form positronium. Another electron can also bind to the positronium weakly to form a positronium negative ion. In this paper, recent progresses in the experimental studies on this ion are reviewed.

Nagashima, Yasuyuki; Michishio, Koji; Terabe, Hiroki [Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601 (Japan)

2014-03-05T23:59:59.000Z

228

MUSICAL AUDIO STREAM SEPARATION BY NON-NEGATIVE MATRIX FACTORIZATION  

E-Print Network (OSTI)

MUSICAL AUDIO STREAM SEPARATION BY NON-NEGATIVE MATRIX FACTORIZATION Beiming Wang Queen Mary audio into streams of individual sound sources, such as instruments or voice. In this paper, we show) algorithm. The system was tested on both artificially mixed audio and real musical recording. This work

Plumbley, Mark

229

Sub-daily Statistical Downscaling of Meteorological Variables Using Neural Networks  

SciTech Connect

A new open source neural network temporal downscaling model is described and tested using CRU-NCEP reanal ysis and CCSM3 climate model output. We downscaled multiple meteorological variables in tandem from monthly to sub-daily time steps while also retaining consistent correlations between variables. We found that our feed forward, error backpropagation approach produced synthetic 6 hourly meteorology with biases no greater than 0.6% across all variables and variance that was accurate within 1% for all variables except atmospheric pressure, wind speed, and precipitation. Correlations between downscaled output and the expected (original) monthly means exceeded 0.99 for all variables, which indicates that this approach would work well for generating atmospheric forcing data consistent with mass and energy conserved GCM output. Our neural network approach performed well for variables that had correlations to other variables of about 0.3 and better and its skill was increased by downscaling multiple correlated variables together. Poor replication of precipitation intensity however required further post-processing in order to obtain the expected probability distribution. The concurrence of precipitation events with expected changes in sub ordinate variables (e.g., less incident shortwave radiation during precipitation events) were nearly as consistent in the downscaled data as in the training data with probabilities that differed by no more than 6%. Our downscaling approach requires training data at the target time step and relies on a weak assumption that climate variability in the extrapolated data is similar to variability in the training data.

Kumar, Jitendra [ORNL] [ORNL; Brooks, Bjørn-Gustaf J. [University of Illinois, Urbana-Champaign] [University of Illinois, Urbana-Champaign; Thornton, Peter E [ORNL] [ORNL; Dietze, Michael [University of Illinois, Urbana-Champaign] [University of Illinois, Urbana-Champaign

2012-01-01T23:59:59.000Z

230

The interaction of daily lighting period and light intensity on growth of some greenhouse plants  

Science Journals Connector (OSTI)

The effect of lighting period and light intensity on the growth of Begonia, Chrysanthemum, Hedera, Kalanchoe and Pelargonium was investigated. The growth of the plants usually increased more when the lighting period was extended from 12 to 18 h or 16 to 20 h than from 18 to 24 or 20 to 24 h when using a constant flux density. When using the same daily (photosynthetic active radiation) PAR the growth was best when the light was given in 20 h, instead of 16 or 24 h. Increasing the light intensity from 14 to 42 or 70 ?mol m?2 s?1 the plant growth increased and usually more when it was increased from 14 to 42 than when it was increased to 70 ?mol m?2 s?1. There was for Begonia and Kalanchoe a significant interaction between lighting period and light intensity on the dry-matter production, but not for the other plants. For Begonia there was a significant increase in number of buds and flowers when increasing the lighting period from 16 to 20 or 24 h a day, while this had no influence on number of days to flowering for either Begonia or Pelargonium. Number of days to flowering and number of buds for Begonia was significantly affected with increasing light intensity from 14 to 42 ?mol m?2 s?1, but there was no effect with a further increase.

H.R. Gislerød; I.M. Eidsten; L.M. Mortensen

1989-01-01T23:59:59.000Z

231

E-Print Network 3.0 - aerobic gram-negative bacilli Sample Search...  

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

the trophic interaction between free-living protozoa and Gram-negative bacte- ria... in the training range soil ...8 Figure 6. PLFA biomarkers for Gram-negative...

232

Statistical correlation between hourly and daily values of solar radiation on horizontal surface at sea level in the Italian climate  

E-Print Network (OSTI)

219- Statistical correlation between hourly and daily values of solar radiation on horizontal- nalières du rayonnement solaire. Abstract. 2014 The knowledge of hourly data of solar radiation is required data measured in Italian stations and propose a method to estimate hourly solar radiation

Boyer, Edmond

233

Climatic Resources for Tourism in Europe An Application of the Tourism Climatic Index on a Daily Basis  

E-Print Network (OSTI)

Climatic Resources for Tourism in Europe An Application of the Tourism Climatic Index on a Daily - Use of the "Tourism Climatic Index" by Mieczkowski (1985) as a metric for "favourable climate" for tourism - Calculation of the potential future change in index by means of climate model projections from

Fischlin, Andreas

234

Influence of daily feeding within a limited time on weight, digestive transit and cholesterol turnover in adult rats  

E-Print Network (OSTI)

turnover in adult rats T. MAGOT, F. CHEVALLIER Laboratoire de Physiologie de la Nutrition (*),), Université de Paris-Sud, Bâtiment 447 91405 Orsay Cedex, France. Summary. Rats were trained to a single daily the first hour. This value defined the average volumic capacity of the full stomach of our rats. Body weight

Paris-Sud XI, Université de

235

Locoregional Outcomes of Inflammatory Breast Cancer Patients Treated With Standard Fractionation Radiation and Daily Skin Bolus in the Taxane Era  

SciTech Connect

Purpose: To assess locoregional outcomes of inflammatory breast cancer (IBC) patients who received standard fractionation radiation with daily skin bolus and taxanes as part of combined-modality therapy (CMT). Methods and Materials: We retrospectively reviewed the charts of 107 patients diagnosed with IBC between January 1995 and March 2006 who presented to our department for adjuvant radiation therapy (RT). Results: All patients received chemotherapy (95% anthracycline and 95% taxane), modified radical mastectomy, and RT to the chest wall and regional lymphatics using standard fractionation to 50 Gy and daily skin bolus. The RT to the chest wall was delivered via electrons (55%) or photons (45%) in daily fractions of 180 cGy (73%) or 200 cGy (27%). Scar boost was performed in 11%. A majority (84%) of patients completed the prescribed treatment. Median follow-up was 47 months (range, 10-134 months). Locoregional control (LRC) at 3 years and 5 years was 90% and 87%, respectively. Distant metastases-free survival (DMFS) at 3 years and 5 years was 61% and 47%, respectively. Conclusions: Excellent locoregional control was observed in this population of IBC patients who received standard fractionation radiation with daily skin bolus and taxanes as part of combined-modality therapy. Distant metastases-free survival remains a significant therapeutic challenge.

Damast, Shari, E-mail: damasts@mskcc.or [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Ho, Alice Y. [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Montgomery, Leslie [Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Fornier, Monica N. [Department of Breast Cancer Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Ishill, Nicole; Elkin, Elena [Department of Epidemiology and Biostatistics, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Beal, Kathryn; McCormick, Beryl [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY (United States)

2010-07-15T23:59:59.000Z

236

A Multi-Sample Cs-Sputter Negative Ion Source  

SciTech Connect

A multi-sample Cs sputter negative-ion source, equipped with a conical-geometry, W-surface-ionizer has been designed and fabricated that permits sample changes without disruption of on-line accelerator operation. Sample changing is effected by actuating an electro-pneumatic control system located at ground potential that drives an air-motor-driven sample-indexing-system mounted at high voltage; this arrangement avoids complications associated with indexing mechanisms that rely on electronic power-supplies located at high potential. In-beam targets are identified by LED indicator lights derived from a fiber-optic, Gray-code target-position sensor. Aspects of the overall source design and details of the indexing mechanism along with operational parameters, ion optics. intensities, and typical emittances for a variety of negative-ion species will be presented in this report.

Alton, G.D.; Ball, J.A.; Bao, Y.; Cui, B.; Reed, C.A.; Williams, C.

1998-10-05T23:59:59.000Z

237

Brain structural signatures of negative symptoms in depression and schizophrenia  

E-Print Network (OSTI)

with DSM-IV schizophrenia, 24 patients with DSM-IV major depressive 126 disorder , and 20 control participants, were recruited to take part in the study (Table 1). Inclusion 127 criteria were: adequate English proficiency and age between 18 and 65 years... correlates will be associated with different domains of negative symptoms in depression and schizophrenia, respectively. MATERIALS AND METHODS PARTICIPANTS AND RECRUITMENT Twenty-two participants with DSM-IV schizophrenia, 24 patients with DSM-IV major...

Chuang, Jie-Yu; Murray, Graham K.; Metastasio, Antonio; Segarra, Nuria; Tait, Roger; Spencer, Jenny; Ziauddeen, Hisham; Dudas, Robert B.; Fletcher, Paul C.; Suckling, John

2014-08-27T23:59:59.000Z

238

Nyström method for Cauchy singular integral equations with negative index  

Science Journals Connector (OSTI)

In this paper, the authors propose a Nystrom method to approximate the solutions of Cauchy singular integral equations with constant coefficients having a negative index. They consider the equations in spaces of continuous functions with weighted uniform ... Keywords: 41A05, 41A10, 45E05, 65R20, Cauchy singular integral equations, Condition number, Fredholm integral equations, Gaussian quadrature rule, Lagrange interpolation, Nyström method

M. C. De Bonis; C. Laurita

2009-10-01T23:59:59.000Z

239

Agronomic phosphorus imbalances across the world's croplands  

Science Journals Connector (OSTI)

...agricultural systems that could...collection and treatment technologies...agricultural systems (Fig...practices such as integrated nutrient management...soils to less plant-available...with more integrated management...agricultural waste streams...land use systems across different...Phosphorus control is critical to...

Graham K. MacDonald; Elena M. Bennett; Philip A. Potter; Navin Ramankutty

2011-01-01T23:59:59.000Z

240

Governmental-Owner Power Imbalance and Privatization  

E-Print Network (OSTI)

Privatization is defined as the sale of state-owned assets by governmental agencies to private investors (e.g., Megginson, Nash, Netter, and Poulsen, 2004; Villalonga, 2000). Research on privatization has focused on privatization techniques (e...

Xu, Kehan

2011-10-21T23:59:59.000Z

Note: This page contains sample records for the topic "negative daily imbalances" 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

Agronomic phosphorus imbalances across the world's croplands  

Science Journals Connector (OSTI)

...crop-specific P fertilizer application rates in Argentina and Turkey were made to account for inconsistencies...States, southern Australia, and southern Argentina) where...potential for energy in India. Biomass Bioenergy 29:178 ZZQQhy190. 22. Bouwman AF...

Graham K. MacDonald; Elena M. Bennett; Philip A. Potter; Navin Ramankutty

2011-01-01T23:59:59.000Z

242

Estimation of Rectal Dose Using Daily Megavoltage Cone-Beam Computed Tomography and Deformable Image Registration  

SciTech Connect

Purpose: The actual dose delivered to critical organs will differ from the simulated dose because of interfractional organ motion and deformation. Here, we developed a method to estimate the rectal dose in prostate intensity modulated radiation therapy with consideration to interfractional organ motion using daily megavoltage cone-beam computed tomography (MVCBCT). Methods and Materials: Under exemption status from our institutional review board, we retrospectively reviewed 231 series of MVCBCT of 8 patients with prostate cancer. On both planning CT (pCT) and MVCBCT images, the rectal contours were delineated and the CT value within the contours was replaced by the mean CT value within the pelvis, with the addition of 100 Hounsfield units. MVCBCT images were rigidly registered to pCT and then nonrigidly registered using B-Spline deformable image registration (DIR) with Velocity AI software. The concordance between the rectal contours on MVCBCT and pCT was evaluated using the Dice similarity coefficient (DSC). The dose distributions normalized for 1 fraction were also deformed and summed to estimate the actual total dose. Results: The DSC of all treatment fractions of 8 patients was improved from 0.75±0.04 (mean ±SD) to 0.90 ±0.02 by DIR. Six patients showed a decrease of the generalized equivalent uniform dose (gEUD) from total dose compared with treatment plans. Although the rectal volume of each treatment fraction did not show any correlation with the change in gEUD (R{sup 2}=0.18±0.13), the displacement of the center of gravity of rectal contours in the anterior-posterior (AP) direction showed an intermediate relationship (R{sup 2}=0.61±0.16). Conclusion: We developed a method for evaluation of rectal dose using DIR and MVCBCT images and showed the necessity of DIR for the evaluation of total dose. Displacement of the rectum in the AP direction showed a greater effect on the change in rectal dose compared with the rectal volume.

Akino, Yuichi, E-mail: akino@radonc.med.osaka-u.ac.jp [Department of Radiation Oncology, Osaka University Graduate School of Medicine, Suita, Osaka (Japan); Department of Radiology, Osaka University Hospital, Suita, Osaka (Japan); Yoshioka, Yasuo [Department of Radiation Oncology, Osaka University Graduate School of Medicine, Suita, Osaka (Japan); Fukuda, Shoichi [Department of Radiation Oncology, Osaka General Medical Center, Osaka (Japan); Maruoka, Shintaroh [Department of Radiation Oncology, Osaka University Graduate School of Medicine, Suita, Osaka (Japan); Takahashi, Yutaka [Department of Radiation Oncology, Osaka University Graduate School of Medicine, Suita, Osaka (Japan); Department of Radiation Oncology, University of Minnesota, Minneapolis, Minnesota (United States); Yagi, Masashi [Department of Radiation Oncology, Osaka University Graduate School of Medicine, Suita, Osaka (Japan); Mizuno, Hirokazu [Department of Radiology, Osaka University Hospital, Suita, Osaka (Japan); Isohashi, Fumiaki [Oncology Center, Osaka University Hospital, Suita, Osaka (Japan); Ogawa, Kazuhiko [Department of Radiation Oncology, Osaka University Graduate School of Medicine, Suita, Osaka (Japan)

2013-11-01T23:59:59.000Z

243

Studies of transition states and radicals by negative ion photodetachment  

SciTech Connect

Negative ion photodetachment is a versatile tool for the production and study of transient neutral species such as reaction intermediates and free radicals. Photodetachment of the stable XHY{sup {minus}} anion provides a direct spectroscopic probe of the transition state region of the potential energy surface for the neutral hydrogen transfer reaction X + HY {yields} XH + Y, where X and Y are halogen atoms. The technique is especially sensitive to resonances, which occur at a specific energy, but the spectra also show features due to direct scattering. We have used collinear adiabatic simulations of the photoelectron spectra to evaluate trail potential energy surfaces for the biomolecular reactions and have extended the adiabatic approach to three dimensions and used it to evaluate empirical potential energy surfaces for the I + Hl and Br + HI reactions. In addition, we have derived an empirical, collinear potential energy surface for the Br + HBr reaction that reproduces our experimental results and have extended this surface to three dimensions. Photodetachment of a negative ion can be also used to study neutral free radicals. We have studied the vibrational and electronic spectroscopy of CH{sub 2}NO{sub 2} by photoelectron spectroscopy of CH{sub 2}NO{sub 2}{sup {minus}}, determining the electron affinity of CH{sub 2}NO{sub 2}, gaining insight on the bonding of the {sup 2}B{sub 1} ground state and observing the {sup 2}A{sub 2} excited state for the first time. Negative ion photodetachment also provides a novel and versatile source of mass-selected, jet-cooled free radicals. We have studied the photodissociation of CH{sub 2}NO{sub 2} at 270, 235, and 208 nm, obtaining information on the dissociation products by measuring the kinetic energy release in the photodissociation.

Metz, R.B.

1991-12-01T23:59:59.000Z

244

Observation of negative absolute resistance in a Josephson junction  

E-Print Network (OSTI)

We experimentally demonstrate the occurrence of negative absolute resistance (NAR) up to about $-1\\Omega$ in response to an externally applied dc current for a shunted Nb-Al/AlO$_x$-Nb Josephson junction, exposed to a microwave current at frequencies in the GHz range. The realization (or not) of NAR depends crucially on the amplitude of the applied microwave current. Theoretically, the system is described by means of the resistively and capacitively shunted junction model in terms of a moderately damped, classical Brownian particle dynamics in a one-dimensional potential. We find excellent agreement of the experimental results with numerical simulations of the model.

J. Nagel; D. Speer; T. Gaber; A. Sterck; R. Eichhorn; P. Reimann; K. Ilin; M. Siegel; D. Koelle; R. Kleiner

2008-01-28T23:59:59.000Z

245

Verbal Aspect and Negation in Russian and Czech  

E-Print Network (OSTI)

napisal novoe pis'mo, serde?no poblagodaril otca, skrupulezno pere?islil svoi minimal'nye rasxody i pokazal, kak èto malo. Otec s prokljatijami dobavil desjat' rublej. Bol'še iz nego Alik ne vyžal pf . (Rus; Meril 1985: 132–33) ‘Alik wrote a new... not spoil it.’ Aspect and Negation in Russian and Czech 24 (13) a. Otec ne razrešal ipf emu privodit' v dom devušek, no do?' narodnogo komisara — šutka skazat'! Takoj u Jurija ne bylo. (Rus; DA: 40) b. Otec Jurovi nedovoloval ipf , aby si...

Dickey, Stephen M.; Kresin, Susan C.

2009-01-01T23:59:59.000Z

246

Negative Diffusion and Traveling Waves in High Dimensional Lattice Systems  

E-Print Network (OSTI)

(x, t)] + f ( u(x, t) ; ? ) , parametrized by ? ? V ? R. The diffusion constant satisfies ? ? 0, the function u takes values in Rn for some n ? 2, the real (n × n)-matrices Aj have nonnegative entries, and the Jacobian D1f(· ; ?) has nonnegative off...-diagonal elements. The shifts r0 < r1 < · · · < rN can be taken to be both positive and negative, i.e., r0 < 0 < rN . We are interested in nonlinearities f that are bistable. In particular, writing 0 = (0, . . . , 0) ? Rn and 1 = (1, . . . , 1) ? Rn, we assume...

Hupkes, H. J.; Van Vleck, Erik S.

2013-01-01T23:59:59.000Z

247

Negative Compressibility and Inverse Problem for Spinning Gas  

SciTech Connect

A spinning ideal gas in a cylinder with a smooth surface is shown to have unusual properties. First, under compression parallel to the axis of rotation, the spinning gas exhibits negative compressibility because energy can be stored in the rotation. Second, the spinning breaks the symmetry under which partial pressures of a mixture of gases simply add proportional to the constituent number densities. Thus, remarkably, in a mixture of spinning gases, an inverse problem can be formulated such that the gas constituents can be determined through external measurements only.

Vasily Geyko and Nathaniel J. Fisch

2013-01-11T23:59:59.000Z

248

Daily digestible protein and energy requirements for growth and maintenance of sub-adult Pacific white shrimp (Litopenaeus vannamei)  

E-Print Network (OSTI)

weight-gain and were 1.03 g DP kg-1 BW d-1 for shrimp fed the 25% protein diet and 1.87 g DP kg-1 BW d-1 for shrimp fed the 35% protein diet. Mean apparent daily DE requirement for shrimp fed the 25% protein diet was 402.62 kJ DE kg-1 BW d-1 while the 35...

Siccardi, Anthony Joseph, III

2009-06-02T23:59:59.000Z

249

Positive, Negative and Neutral Law of Universal Gravitation  

E-Print Network (OSTI)

Abstract: According to the viewpoints of “one divides into two”, “one divides into three” (e.g. Neutrosophy) and “one divides into many”, at present there exist six kinds of matter in the universe altogether (one divides into six). If there exists the ordinary matter (called matter for short), there must exist its opposite. However there may exist more than one kind of its opposite, today the known opposites of matter may be the antimatter and dark matter; Other three kinds of matter are the neutral ones: the first neutral matter between matter and antimatter (Prof. Smarandache named it unmatter), the second neutral matter between matter and dark matter, and the third neutral matter between antimatter and dark matter. Similarly, if there exists the original “law of universal gravitation” (positive law of universal gravitation), there must exist its opposites (negative laws of universal gravitation), and the neutral ones (neutral laws of universal gravitation). According to this analysis, it is impossible to find the unified and ultimate gravitational theory. Key words: One divides into two; one divides into three; one divides into many; Neutrosophy; six kinds of matter; positive (original) law of universal gravitation; negative law of universal gravitation; neutral law of universal gravitation 1

Fu Yuhua; Fu Anjie; Zhao Ge

250

Lithium jet neutralizer to improve negative hydrogen neutral beam systems  

SciTech Connect

Hydrogen isotope neutral beam systems for heating and current drive in magnetic fusion energy devices have always used gas cells of the beam isotope to convert a portion of the energetic ions into neutral atoms. In the design of negative-ion based neutral beams for the ITER tokamak [R. Aymar V. A. Chuyanov, M. Huguet et al., Nuclear Fusion 41, 1301 (2001)], or for future fusion reactors, the large gas load from a traditional neutralizer cell causes many problems, including increased heat loads on the accelerator and ion source, reduced beam efficiency due to premature neutralization in the accelerator and reionization after the neutralizer, and the need to stop the beam for regeneration of the cryopanels, reducing the attractiveness of beams for reactors. We explore several approaches to decrease the neutralizer gas throughput, and conclude that a supersonic lithium vapor jet neutralizer is the most appropriate, and also affords a higher neutralization efficiency than does a hydrogen isotope gas cell.

Grisham, L. R. [Princeton University, Plasma Physics Laboratory, P.O. Box 451, Princeton, New Jersey 08543 (United States)

2007-10-15T23:59:59.000Z

251

Exploring non-signalling polytopes with negative probability  

E-Print Network (OSTI)

Bipartite and tripartite EPR-Bell type systems are examined via joint quasi-probability distributions where elementary probabilities are permitted to be negative. It is shown that such distributions exist only when the no-signalling condition is satisfied. A characteristic measure, the probability mass, is introduced and, via its minimization, limits the number of quasi-distributions describing a given marginal probability distribution. The minimized probability mass is shown to be an alternative way to characterize non-local systems. Non-signalling polytopes for two, three, and four settings in the bipartite scenario are examined and compared to prior work. Examining perfect cloning of non-local systems within the tripartite scenario suggests defining two categories of signalling. It is seen that many properties of non-local systems can be efficiently described by quasi-probability theory.

G. Oas; J. Acacio de Barros; C. Carvalhaes

2014-04-15T23:59:59.000Z

252

Topological implications of negative curvature for biological and social networks  

Science Journals Connector (OSTI)

Network measures that reflect the most salient properties of complex large-scale networks are in high demand in the network research community. In this paper we adapt a combinatorial measure of negative curvature (also called hyperbolicity) to parametrized finite networks, and show that a variety of biological and social networks are hyperbolic. This hyperbolicity property has strong implications on the higher-order connectivity and other topological properties of these networks. Specifically, we derive and prove bounds on the distance among shortest or approximately shortest paths in hyperbolic networks. We describe two implications of these bounds to crosstalk in biological networks, and to the existence of central, influential neighborhoods in both biological and social networks.

Réka Albert; Bhaskar DasGupta; Nasim Mobasheri

2014-03-24T23:59:59.000Z

253

Monte Carlo sampling of negative-temperature plasma states  

Science Journals Connector (OSTI)

A Monte Carlo procedure is used to generate N-particle configurations compatible with two-temperature canonical equilibria in two dimensions, with particular attention to nonlinear plasma gyrokinetics. An unusual feature of the problem is the importance of a nontrivial probability density function P0(?), the probability of realizing a set ? of Fourier amplitudes associated with an ensemble of uniformly distributed, independent particles. This quantity arises because the equilibrium distribution is specified in terms of ?, whereas the sampling procedure naturally produces particle states ?; ? and ? are related via a gyrokinetic Poisson equation, highly nonlinear in its dependence on ?. Expansion and asymptotic methods are used to calculate P0(?) analytically; excellent agreement is found between the large-N asymptotic result and a direct numerical calculation. The algorithm is tested by successfully generating a variety of states of both positive and negative temperature, including ones in which either the longest- or shortest-wavelength modes are excited to relatively large amplitudes.

John A. Krommes and Sharadini Rath

2003-06-09T23:59:59.000Z

254

Experimental studies of the Negative Ion of Hydrogen. Final Report  

SciTech Connect

This document presents an overview of the results of the DOE'S support of experimental research into the structure and interactions of the negative ion of hydrogen conducted by the Department of Physics and Astronomy of the University of New Mexico at the Los Alamos National Laboratory. The work involves many collaborations with scientists from both institutions, as well as others. Although official DOE support for this work began in 1977, the experiment that led to it was done in 1971, near the time the 800 MeV linear accelerator at Los Alamos (LAMPF) first came on line. Until the mid nineties, the work was performed using the relativistic beam at LAMFF. The most recent results were obtained using the 35 keV injector beam for the Ground Test Accelerator at Los Alamos. A list of all published results from this work is presented.

Bryant, Howard C.

1999-06-30T23:59:59.000Z

255

Trapping and aerogelation of nanoparticles in negative gravity hydrocarbon flames  

SciTech Connect

We report the experimental realization of continuous carbon aerogel production using a flame aerosol reactor by operating it in negative gravity (?g; up-side-down configuration). Buoyancy opposes the fuel and air flow forces in ?g, which eliminates convectional outflow of nanoparticles from the flame and traps them in a distinctive non-tipping, flicker-free, cylindrical flame body, where they grow to millimeter-size aerogel particles and gravitationally fall out. Computational fluid dynamics simulations show that a closed-loop recirculation zone is set up in ?g flames, which reduces the time to gel for nanoparticles by ?10{sup 6}?s, compared to positive gravity (upward rising) flames. Our results open up new possibilities of one-step gas-phase synthesis of a wide variety of aerogels on an industrial scale.

Chakrabarty, Rajan K., E-mail: rajan.chakrabarty@gmail.com [Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130 (United States); Laboratory for Aerosol Science, Spectroscopy, and Optics, Desert Research Institute, Nevada System of Higher Education, Reno, Nevada 89512 (United States); Novosselov, Igor V. [Department of Mechanical Engineering, University of Washington, Seattle, Washington 98195 (United States); Enertechnix Inc., Maple Valley, Washington 98068 (United States); Beres, Nicholas D.; Moosmüller, Hans [Laboratory for Aerosol Science, Spectroscopy, and Optics, Desert Research Institute, Nevada System of Higher Education, Reno, Nevada 89512 (United States); Sorensen, Christopher M. [Condensed Matter Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506 (United States); Stipe, Christopher B. [TSI Incorporated, 500 Cardigan Rd, Shoreview, Minnesota 55126 (United States)

2014-06-16T23:59:59.000Z

256

Negative-mass Instability in Nonlinear Plasma Waves  

SciTech Connect

The negative-mass instability (NMI), previously found in ion traps, appears as a distinct regime of the sideband instability in nonlinear plasma waves with trapped particles. As the bounce frequency of these particles decreases with the bounce action, bunching can occur if the action distribution is inverted in trapping islands. In contrast to existing theories that also infer instabilities from the anharmonicity of bounce oscillations, spatial periodicity of the islands turns out to be unimportant, and the particle distribution can be unstable even if it is at at the resonance. An analytical model is proposed which describes both single traps and periodic nonlinear waves and concisely generalizes the conventional description of the sideband instability in plasma waves. The theoretical results are supported by particle-in-cell simulations carried out for a regime accentuating the NMI effect.

I.Y. Dodin, P.F. Schmit, J. Rocks and N.J. Fisch

2013-01-30T23:59:59.000Z

257

Negative Ion Based Heating and Diagnostic Neutral Beams for ITER  

SciTech Connect

To meet the requirements of the four operating and one start-up scenarios foreseen in the International Tokamak Experimental Reactor (ITER) a flexible heating mix will be required, which has to include a reliable contribution from neutral beams. The current baseline of ITER foresees 2 Heating Neutral Beam (HNB) systems based on negative ion technology, each operating at 1 MeV 40 A D{sup -} ions, and each capable of delivering up to 16.7 MW of D deg. to the ITER plasma. A 3rd HNB injector is foreseen as an upgrade option. In addition a dedicated Diagnostic Neutral Beam (DNB) injecting 100 keV 60 A of negative hydrogen ions will be available for charge exchange resonant spectroscopy (CXRS). The significant R and D effort necessary to meet the design requirements will be provided in the Neutral Beam Test Facility (NBTF), which is to be constructed in Padua, Italy. This paper gives an overview of the current status of the neutral beam (NB) systems and the chosen configuration. The ongoing integration effort into the ITER plant is highlighted and open interface issues are identified. It is shown how installation and maintenance logistics has influenced the design. ITER operating scenarios are briefly discussed, including start-up and commissioning. For example it is now envisaged to have a low current hydrogen phase of ITER operations, essentially for commissioning of the many auxiliary systems used on ITER. The low current limits the achievable plasma density, and hence the NB energy due to shine through limitations. Therefore a possible reconfiguration of the auxiliary heating systems is now being discussed. Other NB related issues identified by the ongoing design review process are emphasized and possible impact on the implementations of the HNB and DNB systems is indicated.

Schunke, B.; Bora, D.; Cordier, J.-J.; Hemsworth, R.; Tanga, A. [ITER Organization, Cadarache, 13108 St.-Paul-lez-Durance (France); Antoni, V. [Consorzio RFX, EURATOM-ENEA Association, Corso Stati Uniti 4, I-35127 (Italy); Bonicelli, T. [IPR, Bhat, Gandhinagar, Gujarat, 382428 (India); Chakraborty, A. [EFDA CSU, Boltzmannstrasse 2, D-85748, Garching (Germany); Inoue, T.; Watanabe, K. [JAEA, 801-1 Mukouyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193 (Japan)

2008-04-07T23:59:59.000Z

258

T-677: F5 BIG-IP BIND Negative Caching RRSIG RRsets Denial of...  

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

77: F5 BIG-IP BIND Negative Caching RRSIG RRsets Denial of Service Vulnerability T-677: F5 BIG-IP BIND Negative Caching RRSIG RRsets Denial of Service Vulnerability July 27, 2011 -...

259

T-633: BIND RRSIG RRsets Negative Caching Off-by-one Bug Lets...  

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

33: BIND RRSIG RRsets Negative Caching Off-by-one Bug Lets Remote Users Deny Service T-633: BIND RRSIG RRsets Negative Caching Off-by-one Bug Lets Remote Users Deny Service May 31,...

260

Nano-Dispersed Liquid Crystal with Tunable Negative-Zero-Positive Refractive Indices  

Science Journals Connector (OSTI)

Negative index and high-index materials are becoming an active research area with many promising applications.

Khoo, I C; Werner, D H; Diaz, A

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "negative daily imbalances" 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

Negative Ion Electron Photodetachment from a Near-Blackbody Photon Source  

Science Journals Connector (OSTI)

Negative Ion Electron Photodetachment from a Near-Blackbody Photon Source ... 12-15 For most negative ions, the ambient flux of photons from other sources, including the cell walls and the filament used in ion generation, is too small to be significant. ... When the filament voltage is pulsed negative, electrons from the heated filament are temporarily accelerated toward the adjacent trapping plate and into the cell, producing negative ions via dissociative attachment with neutral molecules. ...

Gordon A. Janaway; John I. Brauman

2000-01-21T23:59:59.000Z

262

A Novel Markerless Technique to Evaluate Daily Lung Tumor Motion Based on Conventional Cone-Beam CT Projection Data  

SciTech Connect

Purpose: In this study, we present a novel markerless technique, based on cone beam computed tomography (CBCT) raw projection data, to evaluate lung tumor daily motion. Method and Materials: The markerless technique, which uses raw CBCT projection data and locates tumors directly on every projection, consists of three steps. First, the tumor contour on the planning CT is used to create digitally reconstructed radiographs (DRRs) at every projection angle. Two sets of DRRs are created: one showing only the tumor, and another with the complete anatomy without the tumor. Second, a rigid two-dimensional image registration is performed to register the DRR set without the tumor to the CBCT projections. After the registration, the projections are subtracted from the DRRs, resulting in a projection dataset containing primarily tumor. Finally, a second registration is performed between the subtracted projection and tumor-only DRR. The methodology was evaluated using a chest phantom containing a moving tumor, and retrospectively in 4 lung cancer patients treated by stereotactic body radiation therapy. Tumors detected on projection images were compared with those from three-dimensional (3D) and four-dimensional (4D) CBCT reconstruction results. Results: Results in both static and moving phantoms demonstrate that the accuracy is within 1 mm. The subsequent application to 22 sets of CBCT scan raw projection data of 4 lung cancer patients includes about 11,000 projections, with the detected tumor locations consistent with 3D and 4D CBCT reconstruction results. This technique reveals detailed lung tumor motion and provides additional information than conventional 4D images. Conclusion: This technique is capable of accurately characterizing lung tumor motion on a daily basis based on a conventional CBCT scan. It provides daily verification of the tumor motion to ensure that these motions are within prior estimation and covered by the treatment planning volume.

Yang Yin; Zhong Zichun; Guo Xiaohu [Department of Computer Science, University of Texas at Dallas, Richardson, TX (United States); Wang Jing; Anderson, John; Solberg, Timothy [Department of Radiation Oncology, University of Texas Southwestern Medical Center at Dallas, Dallas, TX 75390 (United States); Mao Weihua, E-mail: weihua.mao@utsouthwestern.edu [Department of Radiation Oncology, University of Texas Southwestern Medical Center at Dallas, Dallas, TX 75390 (United States)

2012-04-01T23:59:59.000Z

263

Adaptive Liver Stereotactic Body Radiation Therapy: Automated Daily Plan Reoptimization Prevents Dose Delivery Degradation Caused by Anatomy Deformations  

SciTech Connect

Purpose: To investigate how dose distributions for liver stereotactic body radiation therapy (SBRT) can be improved by using automated, daily plan reoptimization to account for anatomy deformations, compared with setup corrections only. Methods and Materials: For 12 tumors, 3 strategies for dose delivery were simulated. In the first strategy, computed tomography scans made before each treatment fraction were used only for patient repositioning before dose delivery for correction of detected tumor setup errors. In adaptive second and third strategies, in addition to the isocenter shift, intensity modulated radiation therapy beam profiles were reoptimized or both intensity profiles and beam orientations were reoptimized, respectively. All optimizations were performed with a recently published algorithm for automated, multicriteria optimization of both beam profiles and beam angles. Results: In 6 of 12 cases, violations of organs at risk (ie, heart, stomach, kidney) constraints of 1 to 6 Gy in single fractions occurred in cases of tumor repositioning only. By using the adaptive strategies, these could be avoided (<1 Gy). For 1 case, this needed adaptation by slightly underdosing the planning target volume. For 2 cases with restricted tumor dose in the planning phase to avoid organ-at-risk constraint violations, fraction doses could be increased by 1 and 2 Gy because of more favorable anatomy. Daily reoptimization of both beam profiles and beam angles (third strategy) performed slightly better than reoptimization of profiles only, but the latter required only a few minutes of computation time, whereas full reoptimization took several hours. Conclusions: This simulation study demonstrated that replanning based on daily acquired computed tomography scans can improve liver stereotactic body radiation therapy dose delivery.

Leinders, Suzanne M. [Erasmus Medical Center-Daniel den Hoed Cancer Center, Rotterdam (Netherlands); Delft University of Technology, Delft (Netherlands); Breedveld, Sebastiaan; Méndez Romero, Alejandra [Erasmus Medical Center-Daniel den Hoed Cancer Center, Rotterdam (Netherlands); Schaart, Dennis [Delft University of Technology, Delft (Netherlands); Seppenwoolde, Yvette, E-mail: y.seppenwoolde@erasmusmc.nl [Erasmus Medical Center-Daniel den Hoed Cancer Center, Rotterdam (Netherlands); Heijmen, Ben J.M. [Erasmus Medical Center-Daniel den Hoed Cancer Center, Rotterdam (Netherlands)

2013-12-01T23:59:59.000Z

264

The meteorology of negative cloud-to-ground lightning strokes with large charge moment changes: Implications  

E-Print Network (OSTI)

of the systems produced greater than 50% negative CG lightning, though flash rates tended to be low nearThe meteorology of negative cloud-to-ground lightning strokes with large charge moment changes the stroke (1­2 min�1 on average). The results suggest that negative sprite-parent/class lightning typically

Cummer, Steven A.

265

The meteorology of negative cloud-to-ground lightning strokes with large charge moment changes: Implications  

E-Print Network (OSTI)

% negative CG lightning, though flash rates tended to be low near the stroke (1­2 min�1 on averageThe meteorology of negative cloud-to-ground lightning strokes with large charge moment changes). The results suggest that negative sprite-parent/class lightning typically occurs in precipitation systems

Rutledge, Steven

266

The Impacts of Wind Power Integration on Sub-Daily Variation in River Flows Downstream of Hydroelectric Dams  

Science Journals Connector (OSTI)

The Impacts of Wind Power Integration on Sub-Daily Variation in River Flows Downstream of Hydroelectric Dams ... Due to their operational flexibility, hydroelectric dams are ideal candidates to compensate for the intermittency and unpredictability of wind energy production. ... In this paper, we examine the effects of increased (i.e., 5%, 15%, and 25%) wind market penetration on prices for electricity and reserves, and assess the potential for altered price dynamics to disrupt reservoir release schedules at a hydroelectric dam and cause more variable and unpredictable hourly flow patterns (measured in terms of the Richards-Baker Flashiness (RBF) index). ...

Jordan D. Kern; Dalia Patino-Echeverri; Gregory W. Characklis

2014-07-25T23:59:59.000Z

267

A comparative study of factors related to carrying out physical activities of daily living (PADL) among 75-year-old men and women in two nordic localities  

Science Journals Connector (OSTI)

The aim of this cross-sectional and cross-national study was to describe and compare the ability to carry out physical activities of daily living (PADL) and examine factors that might explain variation in this...

P. Laukkanen M.D.; E. Heikkinen; M. Schroll…

1997-08-01T23:59:59.000Z

268

A new HBMO algorithm for multiobjective daily Volt/Var control in distribution systems considering Distributed Generators  

Science Journals Connector (OSTI)

In recent years, Distributed Generators (DGs) connected to the distribution network have received increasing attention. The connection of enormous \\{DGs\\} into existing distribution network changes the operation of distribution systems. Because of the small X/R ratio and radial structure of distribution systems, \\{DGs\\} affect the daily Volt/Var control. This paper presents a new algorithm for multiobjective daily Volt/Var control in distribution systems including Distributed Generators (DGs). The objectives are costs of energy generation by \\{DGs\\} and distribution companies, electrical energy losses and the voltage deviations for the next day. A new optimization algorithm based on a Chaotic Improved Honey Bee Mating Optimization (CIHBMO) is proposed to determine the active power values of DGs, reactive power values of capacitors and tap positions of transformers for the next day. Since objectives are not the same, a fuzzy system is used to calculate the best solution. The plausibility of the proposed algorithm is demonstrated and its performance is compared with other methods on a 69-bus distribution feeder. Simulation results illustrate that the proposed algorithm has better outperforms the other algorithms.

Taher Niknam

2011-01-01T23:59:59.000Z

269

4/5/2014 Micro-windmill Charger | DailyHome Decor Ideas http://www.dailyhomedecorideas.com/stunning-ideas/micro-windmill-charger/ 1/4  

E-Print Network (OSTI)

://www.dailyhomedecorideas.com/stunning-ideas/micro-windmill-charger/ 1/4 Daily Home Decor Ideas Micro-windmill Charger VersiCharge EV Charger usa Blowout Sale #12;4/5/2014 Micro-windmill Charger | DailyHome Decor Ideas http://www.dailyhomedecorideas.com/stunning-ideas/micro-windmill-charger/ 4/4 Wireless EV Charging Stations Hiding As Manhole Covers Implantable Piezoelectric Nano- ribbon

Chiao, Jung-Chih

270

Negative refractive index materials for improved solar cells  

Science Journals Connector (OSTI)

Planar thin-film solar cells can exploit Fabry-Perot resonances in the spectral domain of weak absorption to make them more efficient. However, their spectral width decreases and their number increases for a thicker solar cell, both being detrimental. Here, we show that an optically complementary material, i.e., a material with a negative but otherwise identical refractive index to that of the solar cell material and with the same impedance, allows a single, spectrally immensely broad, Fabry-Perot resonance to be obtained. This is useful to enhance the absorption across the entire spectral domain of interest. If a material with the required optical response were available, a solar cell could be implemented that performs close to the Lambertian limit. However, since the idealistic material properties assumed herein cannot be achieved, an actual implementation may exploit nanostructures such as, e.g., dispersion engineered photonic crystals. In a reasonable spectral range their optical response can be close to that required.

Stephan Fahr; Carsten Rockstuhl; Falk Lederer

2013-09-03T23:59:59.000Z

271

Electron detachment from negative ions in a short laser pulse  

SciTech Connect

We present an efficient and accurate method to study electron detachment from negative ions by a few-cycle linearly polarized laser pulse. The adiabatic saddle-point method of Gribakin and Kuchiev [Phys. Rev. A 55, 3760 (1997)] is adapted to calculate the transition amplitude for a short laser pulse. Its application to a pulse with N optical cycles produces 2(N+1) saddle points in complex time, which form a characteristic 'smile.' Numerical calculations are performed for H{sup -} in a 5-cycle pulse with frequency 0.0043 a.u. and intensities of 10{sup 10}, 5x10{sup 10}, and 10{sup 11} W/cm{sup 2}, and for various carrier-envelope phases. We determine the spectrum of the photoelectrons as a function of both energy and emission angle, as well as the angle-integrated energy spectra and total detachment probabilities. Our calculations show that the dominant contribution to the transition amplitude is given by 5-6 central saddle points, which correspond to the strongest part of the pulse. We examine the dependence of the photoelectron angular distributions on the carrier-envelope phase and show that measuring such distributions can provide a way of determining this phase.

Shearer, S. F. C.; Smyth, M. C.; Gribakin, G. F. [School of Mathematics and Physics, Queen's University Belfast, Belfast, BT7 1NN (United Kingdom)

2011-09-15T23:59:59.000Z

272

Crystal-Field Splitting and Giant Negative Magnetization in  

SciTech Connect

Bimetallic oxalates are a class of layered organic magnets with transi- tion metals M(II) and M'(III) coupled by oxalate molecules in an open honeycomb structure. Of particular interest are the Fe(II)Fe(III) bimetal- lic compounds, which are ferrimagnetically ordered below a transition temperature that ranges from 30 to 48 K, depending on the cation that separates the layers. In small magnetic fields, several of these compounds exhibit giant negative magnetization below a compensation temperature of roughly 2/3 Tc. By studying the behavior of the Kramer's doublet ground state produced by the crystal-field splitting and constructing a reduced Hamiltonian that includes both exchange and spin-orbit and in- teractions, we can explain all of the important behavior of this class of materials: the stability of magnetic order in two dimensions and the existence of magnetic compensation in samples with high transition tem- peratures. We also provide several new predictions for the spin-wave gap and the optical flipping of the magnetic moment.

Fishman, Randy Scott [ORNL; Reboredo, Fernando A [ORNL

2007-01-01T23:59:59.000Z

273

A new approach based on ant colony optimization for daily Volt/Var control in distribution networks considering distributed generators  

Science Journals Connector (OSTI)

This paper presents a new approach to daily Volt/Var control in distribution systems with regard to distributed generators (DGs). Due to the small X/R ratio and radial configuration of distribution systems, \\{DGs\\} have much impact on this problem. A cost-based compensation methodology is proposed as a proper signal to encourage owners of \\{DGs\\} in active and reactive power generation. An evolutionary method based on ant colony optimization (ACO) is used to determine the active and reactive power values of DGs, reactive power values of capacitors and tap positions of transformers for the next day. The results indicate that the proposed encouraging factor has improved the performance of distribution networks on a large scale.

Taher Niknam

2008-01-01T23:59:59.000Z

274

Dust negative ion acoustic shock waves considering dust size distribution effect  

SciTech Connect

A multi-ion dusty plasma containing hot isothermal electrons, ions (light positive ions and heavy negative ions), and extremely and negatively charged dust grains is studied in the present paper. The dust negative ion acoustic shock waves have been investigated by employing the reductive perturbation method. How the dust size distribution affects the height and the thickness of the nonlinear shock wave is studied. It is noted that the different dust size distribution has different shock wave form and different moving speed.

Ma Yirong; Wang Canglong; Zhang Jianrong; Sun Jianan; Duan Wenshan [College of Physics and Electronic Engineering and Joint Laboratory of Atomic and Molecular Physics of NWNU and IMP CAS, Northwest Normal University, Lanzhou 730070, China and Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 (China); Yang Lei [College of Physics and Electronic Engineering and Joint Laboratory of Atomic and Molecular Physics of NWNU and IMP CAS, Northwest Normal University, Lanzhou 730070 (China) and Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 (China); Department of Physics, Lanzhou University, Lanzhou 730000 (China)

2012-11-15T23:59:59.000Z

275

E-Print Network 3.0 - absolute negative resistance Sample Search...  

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

31 March 1999 Abstract Apparent negative electrical resistance... .33 MPa), the apparent resistance was either positive or ... Source: Chung, Deborah D.L. - Department of...

276

E-Print Network 3.0 - ammonia negative ion Sample Search Results  

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

AND INTERSTELLAR ICES Summary: recently, it has been shown that the impact of 252Cf fis- sion fragments on solid ammonia produced negative... dissociative ionization of the...

277

The Most Negative and most Positice Values of the Spin Operator for a Many Nucleon System  

E-Print Network (OSTI)

We find the most negative and most positive values of the spin operator for a system of several nucleons. We us an ls basis to make the analysis.

Larry Zamick

2011-01-21T23:59:59.000Z

278

Near-infrared double negative metamaterials Shuang Zhang, Wenjun Fan, K. J. Malloy and S. R. J. Brueck  

E-Print Network (OSTI)

Near-infrared double negative metamaterials Shuang Zhang, Wenjun Fan, K. J. Malloy and S. R. J and negative over an overlapping near-infrared wavelength range resulting in a low loss negative. Brueck, "Demonstration of Near-Infrared Negative-Index Materials," Postdeadline Paper at OSA Topical

New Mexico, University of

279

We are not equally negative: fine-grained labeling for multimedia event detection  

Science Journals Connector (OSTI)

Multimedia event detection (MED) is an effective technique for video indexing and retrieval. Current classifier training for MED treats the negative videos equally. However, many negative videos may resemble the positive videos in different degrees. ... Keywords: attribute representation, attribute selection, fine-grained labeling, multi-source attributes, multimedia event detection (MED)

Zhigang Ma; Yi Yang; Zhongwen Xu; Nicu Sebe; Alexander G. Hauptmann

2013-10-01T23:59:59.000Z

280

RECYCLING AND REMOVAL OF OFFSHORE WIND TURBINES AN INTERACTIVE METHOD FOR REDUCTION OF NEGATIVE ENVIRONMENTAL EFFECTS  

E-Print Network (OSTI)

RECYCLING AND REMOVAL OF OFFSHORE WIND TURBINES ­ AN INTERACTIVE METHOD FOR REDUCTION OF NEGATIVE.borup@risoe.dk ABSTRACT: This paper describes a method for reduction of negative environmental impacts of wind turbines and an analysis of future removal and recycling processes of offshore wind turbines. The method is process

Note: This page contains sample records for the topic "negative daily imbalances" 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

ANALYSIS OF THE REQUIREMENTS FOR HUMAN TOLL-LIKE RECEPTOR 3 DOMINANT NEGATIVITY AND SIGNAL TRANSDUCTION  

E-Print Network (OSTI)

of dominant negative inhibition of TLR3N-CT is comparable to that of TLR3 ?Toll interleukin-1 receptor (TIR), the previously established standard for dominant negativity. Tyrosine mutants, such as Y759F, have been shown to dramatically reduce TLR3 signal...

Hickey, Matthew

2009-06-09T23:59:59.000Z

282

Near-surface generation of negative ions in low-pressure discharges* E. Stoffelsa)  

E-Print Network (OSTI)

and negative ion fluxes arriving at the electrodes in an oxygen parallel-plate radio-frequency rf, 13.56 MHz processes of negative ions in low-pressure plasmas are not yet fully understood: as a rule experiments-pressure discharges and can have large impacts on the bulk plasma chemistry. We monitor energy-resolved positive

Greifswald, Ernst-Moritz-Arndt-Universität

283

Wormholes, Gamma Ray Bursts and the Amount of Negative Mass in the Universe  

E-Print Network (OSTI)

In this essay, we assume that negative mass objects can exist in the extragalactic space and analyze the consequences of their microlensing on light from distant Active Galactic Nuclei. We find that such events have very similar features to some observed Gamma Ray Bursts and use recent satellite data to set an upper bound to the amount of negative mass in the universe.

Diego F. Torres; Gustavo E. Romero; Luis A. Anchordoqui

1998-05-19T23:59:59.000Z

284

INDIVIDUALITY-PRESERVING VOICE CONVERSION FOR ARTICULATION DISORDERS BASED ON NON-NEGATIVE MATRIX FACTORIZATION  

E-Print Network (OSTI)

- based spectral conversion using Non-negative Matrix Factorization (NMF) is applied to a voiceINDIVIDUALITY-PRESERVING VOICE CONVERSION FOR ARTICULATION DISORDERS BASED ON NON-NEGATIVE MATRIX FACTORIZATION Ryo AIHARA, Ryoichi TAKASHIMA, Tetsuya TAKIGUCHI, Yasuo ARIKI Graduate School of System

Takiguchi, Tetsuya

285

Effect of Negative Emotional Content on Working Memory and Long-Term Memory  

E-Print Network (OSTI)

Effect of Negative Emotional Content on Working Memory and Long-Term Memory Elizabeth A. Kensinger and Suzanne Corkin Massachusetts Institute of Technology In long-term memory, negative information is better remembered than neutral information. Differences in processes important to working memory may contribute

Corkin, Suzanne

286

Exact solitary solution of Schamel equation in plasmas with negative ions  

SciTech Connect

A theoretical investigation is carried out for understanding the properties of the solitary solution in plasmas with negative ions. Schamel equation for a plasma consisting of electron, positive ions and negative ions has been derived by using the reductive perturbation method. The effects of negative ions and the density on the properties of the solitary solution is discussed. We make use of the extended mapping method and auxiliary equation to obtain the solution of Schamel equation. This solution includes the Jacobi elliptic function solutions, hyperbolic function solutions, rational solutions, and periodic wave solutions. Furthermore, we show that the incorporate negative ion effects in the nonlinear propagation of ion acoustic waves that are controlled by trapped electrons and the results of the solitary solution in plasmas with negative ions model are discussed.

El-Kalaawy, O. H. [Mathematics Department, Faculty of Education, Dammam University, P.O. 2375, Dammam 31451 (Saudi Arabia) and Department of Mathematics, Faculty of Science, Beni-Suef University, Beni-Suef 62511 (Egypt)

2011-11-15T23:59:59.000Z

287

Excitation of lower hybrid waves by a gyrating ion beam in a negative ion plasma  

SciTech Connect

A gyrating ion beam propagating through a magnetized plasma cylinder containing K{sup +} positive ions, electrons, and SF{sub 6}{sup -} negative ions drives electrostatic lower hybrid waves to instability via Cyclotron interaction. Numerical calculations of the unstable mode frequencies and growth rates of both the unstable positive ion and negative ion modes have been carried out for the existing negative ion plasma parameters. It is found that the unstable mode frequencies of both the modes increase, with the relative density of negative ions. In addition, the growth rates of both the unstable modes also increases with relative density of negative ions. Moreover, the growth rates of both the unstable modes scale as the one-third power of the beam density. The frequencies of both the unstable modes also increase with the magnetic fields. The real part of the unstable wave frequency increases as almost the square root of the beam energy.

Sharma, Jyotsna; Jain, V. K. [Physics Group, School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110 067 (India); Sharma, Suresh C. [Department of Applied Physics, Delhi Technological University, Shahbad Daulatpur, Bawana Road, Delhi 110 042 (India); Gahlot, Ajay [Department of Physics, Maharaja Surajmal Institute of Technology, Janakpuri, New Delhi (India)

2013-03-15T23:59:59.000Z

288

Interactive multiobjective daily volt/var control of distribution networks considering wind power and fuel-cell power plants  

Science Journals Connector (OSTI)

This paper deals with a multiobjective daily volt/var control (MDVVC) for radial distribution feeders integrated renewable energy sources (RES) by means of the tap position of the under load tap changer (ULTC) transformers shunt capacitors and active and reactive power of RES. The multiple objective functions to be minimized are the electrical energy losses the voltage deviations and the total emissions of RES and substations. Discrete behavior of equipments in the distribution systems and nonlinear power flow equations change the VVC problem into a mixed integer non-linear programming (MINLP). Hence a new optimization method based upon the shuffled frog leaping algorithm (SFLA) is presented to solve the optimization problem. The SFLA is modified for resolving the disadvantages of the original algorithm. Besides of accurately passing local optima the MSFLA takes less time to achieve the optimal response. Furthermore the tribe-MSFLA is proposed through using the concept of the tribe. Dealing with the multiobjective optimization problem an interactive fuzzy satisfying method is used while the objective functions are formulated by a fuzzy set theory. An 85-bus radial distribution system is used to test and assess the performance of the proposed algorithm.

Taher Niknam; Mohsen Zare; Jamshid Aghaei; Rasoul Azizipanah-Abarghooee

2012-01-01T23:59:59.000Z

289

Guidance on the establishment of acceptable daily exposure limits (ADE) to support Risk-Based Manufacture of Pharmaceutical Products  

Science Journals Connector (OSTI)

Health-based limits for active pharmaceutical ingredients (API) referred to as acceptable daily exposures (ADEs) are necessary to the pharmaceutical industry and used to derive acceptance limits for cleaning validation purposes and evaluating cross-carryover. \\{ADEs\\} represent a dose of an API unlikely to cause adverse effects if an individual is exposed, by any route, at or below this dose every day over a lifetime. Derivations of \\{ADEs\\} need to be consistent with ICH Q9 as well as other scientific approaches for the derivation of health-based limits that help to manage risks to both product quality and operator safety during the manufacture of pharmaceutical products. Previous methods for the establishment of acceptance limits in cleaning validation programs are considered arbitrary and have largely ignored the available clinical and toxicological data available for a drug substance. Since the ADE utilizes all available pharmaceutical data and applies scientifically acceptable risk assessment methodology it is more holistic and consistent with other quantitative risk assessments purposes such derivation of occupational exposure limits. Processes for hazard identification, dose response assessment, uncertainty factor analysis and documentation are reviewed.

Edward V. Sargent; Ellen Faria; Thomas Pfister; Robert G. Sussman

2013-01-01T23:59:59.000Z

290

CAH and Shared Services Transition Plan CAH will move seven servers that provide daily operational services such as user authentication and access, central file  

E-Print Network (OSTI)

CAH and Shared Services Transition Plan CAH will move seven servers that provide daily operational the university's NET domain. Domains provide user authentication, access, and management to resources divide the transition plan, and each phase has goals and a deadline. The overall goal is to continue

Wu, Shin-Tson

291

The Daily Tar Heel URL: http://www.dailytarheel.com/index.php/article/2010/09/grant_money_to_help_scholars  

E-Print Network (OSTI)

The Daily Tar Heel URL: http://www.dailytarheel.com/index.php/article/2010/09/grant_money_to_help_scholars Current Date: Sun, 26 Sep 2010 13:05:26 -0400 Grant money to help scholars To benefit biomedical students in biology, physics and chemistry, as well as high-level math and applied sciences courses. The grant money

Sekelsky, Jeff

292

Tougher than Kevlar: Researchers create new high-performance fiber Posted In: Editors Picks | R&D Daily | Carbon Nanotubes & Graphene | Materials Science |  

E-Print Network (OSTI)

and satellites. To create the new fiber, researchers began with carbon nanotubes--cylindrical-shaped carbonTougher than Kevlar: Researchers create new high-performance fiber Posted In: Editors Picks | R&D Daily | Carbon Nanotubes & Graphene | Materials Science | Nanotechnology | Engineering | Material

Espinosa, Horacio D.

293

> REPLACE THIS LINE WITH YOUR PAPER IDENTIFICATION NUMBER (DOUBLE-CLICK HERE TO EDIT) < 1 Abstract--The HelioClim-1 database contains daily values of  

E-Print Network (OSTI)

-meteorology, solar energy, ocean, health, architecture, air quality, GEOSS. I. INTRODUCTION HE surface solar-- The HelioClim-1 database contains daily values of the solar radiation reaching the ground. This GEOSS-CORE) covers Europe, Africa and the Atlantic Ocean, from 1985 to 2005. It is freely accessible at no cost

Paris-Sud XI, Université de

294

Confining light with negative refraction in checkerboard metamaterials and photonic crystals  

SciTech Connect

We present here a finite slab of triangular checkerboard of negative refractive index material that exhibits a form of extraordinary transmission. We show that such a checkerboard can be used to confine light and can act as an open resonator. Effectively even a single point of intersection between three triangular wedges of negative refractive index may act as a resonator that confines light in the limit when n tends toward -1. We find that the quality of the confinement improves by adding more triangular wedges around the initial point in a checkerboard fashion. The confinement effect is also demonstrated by using a photonic crystal that shows the negative refraction effect.

Ramakrishna, S. Anantha [Department of Physics, Indian Institute of Technology, Kanpur 208016 (India); Institut Fresnel, UMR CNRS 6133, Universites Aix-Marseille I and III, 13397 Marseille Cedex 20 (France); Guenneau, S. [Institut Fresnel, UMR CNRS 6133, Universites Aix-Marseille I and III, 13397 Marseille Cedex 20 (France); Department of Mathematical Sciences, Liverpool University, Liverpool L69 3BX (United Kingdom); Enoch, S.; Tayeb, G.; Gralak, B. [Institut Fresnel, UMR CNRS 6133, Universites Aix-Marseille I and III, 13397 Marseille Cedex 20 (France)

2007-06-15T23:59:59.000Z

295

SPACE WAR SPACE DAILY TERRA DAILY MARS DAILY SPACE MART SPACE TRAVEL GPS DAILY ENERGY DAILY Unique Porous Copper Structure  

E-Print Network (OSTI)

Unique Porous Copper Structure Enables New Generation Of Military Micro-Detonators by Staff Writers Athens GA (SPX) Dec 19, 2007 Tiny copper structures with pores at both the nanometer and micron size, the highly-uniform copper structures will be incorporated into integrated circuits - then chemically

Bennett, Gisele

296

Spatial and Quantitative Approach to Incorporating Stakeholder Values into Total Maximum Daily Loads: Dominguez Channel Case Study  

SciTech Connect

The Federal Clean Water Act (CWA) Section 303(d)(1)(A) requires each state to identify those waters that are not achieving water quality standards. The result of this assessment is called the 303(d) list. The CWA also requires states to develop and implement Total Maximum Daily Loads (TMDLs) for these waters on the 303(d) list. A TMDL specifies the maximum amount of a pollutant that a water body can receive and still meet water quality standards, and allocates the pollutant loadings to point and non-point sources. Nationwide, over 34,900 segments of waterways have been listed as impaired by the Environmental Protection Agency (EPA 2006). The EPA enlists state agencies and local communities to submit TMDL plans to reduce discharges by specified dates or have them developed by the EPA. The Department of Energy requested Lawrence Livermore National Laboratory (LLNL) to develop appropriate tools to assist in improving the TMDL process. An investigation of this process by LLNL found that plans to reduce discharges were being developed based on a wide range of site investigation methods. Our investigation found that given the resources available to the interested and responsible parties, developing a quantitative stakeholder input process and using visualization tools to display quantitative information could improve the acceptability of TMDL plans. We developed a stakeholder allocation model (SAM) which uses multi-attribute utility theory to quantitatively structure the preferences of the major stakeholder groups. We then applied GIS to display allocation options in maps representing economic activity, community groups, and city agencies. This allows allocation options and stakeholder concerns to be represented in both space and time. The primary goal of this tool is to provide a quantitative and visual display of stakeholder concerns over possible TMDL options.

Stewart, J S; Baginski, T A; Greene, K G; Smith, A; Sicherman, A

2006-06-23T23:59:59.000Z

297

Fabrication and tribological properties of superhydrophobic nickel films with positive and negative biomimetic microtextures  

Science Journals Connector (OSTI)

Nickel (Ni) films with positive and negative textured surfaces of lotus and rice leaf patterns were fabricated through an inexpensive and effective method. The as-prepared Ni films were superhydrophobic and ex...

Ying Wang; Jing Yang; Xiaobao Guo; Qiang Zhang; Jingyu Wang; Jianning Ding…

2014-09-01T23:59:59.000Z

298

E-Print Network 3.0 - antinuclear antibody negative Sample Search...  

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

46 items ranked from 0 (most negative) to 10 (most positive... by the clarification of gout no differences could be proven. The target criterion of ordering a test for...

299

Negative ion-containing plasma in parallel-plate radio-frequency discharge in oxygen  

Science Journals Connector (OSTI)

The properties of a plasma in a parallel-plate radio frequency (rf) symmetric discharge of 13.56 MHz in oxygen have been investigated. The plasma contains negative ions. The temperature and density ... .6 eV, dep...

H. Amemiva; N. Yasuda; M. Endou

1994-09-01T23:59:59.000Z

300

Negative-ion mass spectra obtained with the aid of an electron-impact source  

Science Journals Connector (OSTI)

The negative-ion mass spectra of six natural compounds of various classes, obtained with the use of an EI ion source, have been characterized. The conditions for ... presuppose the occurrence of a process of seco...

Ya. V. Rashkes

1993-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "negative daily imbalances" 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

Negative resistances in nonlinear lumped acoustic systems and IC?engine source data  

Science Journals Connector (OSTI)

Negative real parts of impedances can be found in IC?engine source characterization measurements. There is an obvious problem with the physical interpretation of negative resistances and consequently there have been many questions about the validity of such results. This paper is an attempt to explain the origin of the mentioned negative acoustic resistances. To this end a simple nonlinear lumped acoustic system that is a force?driven damped mass?spring system is analyzed. Since this is a common case in acoustic measurements linear analysis is performed in spite of the obvious nonlinear properties. It is shown that the degree of nonlinearity in the system is crucial to the values of the acoustic impedance. Furthermore it is shown that it is possible to achieve negative resistances already in a simple lumped system. Finally these results are also compared to simulated and measured IC?engine source impedances.

Fredrik Albertson

1999-01-01T23:59:59.000Z

302

Relativistic Brueckner-Hartree-Fock calculations with explicit intermediate negative energy states  

E-Print Network (OSTI)

In a relativistic Brueckner-Hartree-Fock calculation we include explicit negative-energy states in the two-body propagator. This is achieved by using the Gross spectator-equation, modified by medium effects. Qualitatively our results compare well with other RBHF calculations. In some details significant differences occur, e.g, our equation of state is stiffer and the momentum dependence of the self-energy components is stronger than found in a reference calculation without intermediate negative energy states.

F. de Jong; H. Lenske

1997-09-08T23:59:59.000Z

303

Study of Compact Tunable Filters Using Negative Refractive Index Transmission Lines  

E-Print Network (OSTI)

NOMENCLATURE CTL Composite (right/left-hand) Transmission Line LH Left-Handed LHTL Left-Handed Transmission Line NRI Negative Refractive Index PRI Positive Refractive Index RHTL Right-Handed Transmission Line SRF Self-Resonant Frequency TL... NOMENCLATURE CTL Composite (right/left-hand) Transmission Line LH Left-Handed LHTL Left-Handed Transmission Line NRI Negative Refractive Index PRI Positive Refractive Index RHTL Right-Handed Transmission Line SRF Self-Resonant Frequency TL...

Lewis, Brian Patrick

2011-08-08T23:59:59.000Z

304

Isotope pattern deconvolution for peptide mass spectrometry by non-negative least squares/least absolute deviation template matching  

Science Journals Connector (OSTI)

Identification of overlapping isotope patterns in mass spectrometric data is achieved using non-negative least squares/non-negative least absolute deviation regression, and is able to disentangle complicated overlaps of patterns.

Martin Slawski; Rene Hussong; Andreas Tholey; Thomas Jakoby; Barbara Gregorius; Andreas Hildebrandt; Matthias Hein

2012-11-08T23:59:59.000Z

305

Negative Reinforcement  

Science Journals Connector (OSTI)

...multiple shipments are often required to get one through intact. The inordinate procedures are forcing labo-ratories to...of disposal of the fissile materials recovered from nuclear warheads were discussed and applies even when lab scientists participate...

W. JEFFREY WILSON

1991-12-13T23:59:59.000Z

306

Does Increased Exercise or Physical Activity Alter Ad-Libitum Daily Energy Intake or Macronutrient Composition in Healthy Adults? A Systematic Review  

E-Print Network (OSTI)

Background The magnitude of the negative energy balance induced by exercise may be reduced due to compensatory increases in energy intake. Objective To address the question: Does increased exercise or physical ...

Donnelly, Joseph E.; Herrmann, Stephen D.; Lambourne, Kate; Szabo, Amanda N.; Honas, Jeffery J.; Washburn, Richard A.

2014-01-15T23:59:59.000Z

307

RTOG 0913: A Phase 1 Study of Daily Everolimus (RAD001) in Combination With Radiation Therapy and Temozolomide in Patients With Newly Diagnosed Glioblastoma  

SciTech Connect

Purpose: To determine the safety of the mammalian target of rapamycin inhibitor everolimus (RAD001) administered daily with concurrent radiation and temozolomide in newly diagnosed glioblastoma patients. Methods and Materials: Everolimus was administered daily with concurrent radiation (60 Gy in 30 fractions) and temozolomide (75 mg/m{sup 2} per day). Everolimus was escalated from 2.5 mg/d (dose level 1) to 5 mg/d (dose level 2) to 10 mg/d (dose level 3). Adjuvant temozolomide was delivered at 150 to 200 mg/m{sup 2} on days 1 to 5, every 28 days, for up to 12 cycles, with concurrent everolimus at the previously established daily dose of 10 mg/d. Dose escalation continued if a dose level produced dose-limiting toxicities (DLTs) in fewer than 3 of the first 6 evaluable patients. Results: Between October 28, 2010, and July 2, 2012, the Radiation Therapy Oncology Group 0913 protocol initially registered a total of 35 patients, with 25 patients successfully meeting enrollment criteria receiving the drug and evaluable for toxicity. Everolimus was successfully escalated to the predetermined maximum tolerated dose of 10 mg/d. Two of the first 6 eligible patients had a DLT at each dose level. DLTs included gait disturbance, febrile neutropenia, rash, fatigue, thrombocytopenia, hypoxia, ear pain, headache, and mucositis. Other common toxicities were grade 1 or 2 hypercholesterolemia and hypertriglyceridemia. At the time of analysis, there was 1 death reported, which was attributed to tumor progression. Conclusions: Daily oral everolimus (10 mg) combined with both concurrent radiation and temozolomide followed by adjuvant temozolomide is well tolerated, with an acceptable toxicity profile. A randomized phase 2 clinical trial with mandatory correlative biomarker analysis is currently under way, designed to both determine the efficacy of this regimen and identify molecular determinants of response.

Chinnaiyan, Prakash, E-mail: prakash.chinnaiyan@moffitt.org [Department of Radiation Oncology, Experimental Therapeutics and Cancer Imaging and Metabolism, H. Lee Moffitt Cancer Center, Tampa, Florida (United States); Won, Minhee [Radiation Therapy Oncology Group, Philadelphia, Pennsylvania (United States); Wen, Patrick Y. [Center for Neuro-Oncology, Dana-Farber/Brigham and Women's Cancer Center, Boston, Massachusetts (United States); Rojiani, Amyn M. [Department of Pathology, Medical College of Georgia, Augusta, Georgia (United States); Wendland, Merideth [Radiation Oncology, US Oncology-Willamette Valley Cancer Institute, Eugene, Oregon (United States); Dipetrillo, Thomas A. [Department of Radiation Oncology, Rhode Island Hospital, Providence, Rhode Island (United States); Corn, Benjamin W. [Department of Radiation Oncology, Tel Aviv Medical Center, Tel Aviv (Israel); Mehta, Minesh P. [Department of Radiation Oncology, University of Maryland, Baltimore, Maryland (United States)

2013-08-01T23:59:59.000Z

308

Negative Baryon density and the Folding structure of the B=3 Skyrmion  

E-Print Network (OSTI)

The Skyrme model is a non-linear field theory whose solitonic solutions, once quantised, describe atomic nuclei. The classical static soliton solutions, so-called Skyrmions, have interesting discrete symmetries and can only be calculated numerically. Mathematically, these Skyrmions can be viewed as maps between to two three-manifolds and, as such, their stable singularities can only be folds, cusps and swallowtails. Physically, the occurrence of singularities is related to negative baryon density. In this paper, we calculate the charge three Skyrmion to a high resolution in order to examine its singularity structure in detail. Thereby, we explore regions of negative baryon density. We also discuss how the negative baryon density depends on the pion mass.

David Foster; Steffen Krusch

2013-01-17T23:59:59.000Z

309

Unintended consequences of negative messages: why some health interventions miss the mark  

E-Print Network (OSTI)

Model B Beta t Sig. Step 1 Constant -1.940 -8.48 .000 Drinking Frequency 1.078 0.717 14.51 .000 Positive Frame 0.192 0.041 0.71 .480 Negative Frame -0.037 -0.008 -0.14 .892 Step 2 Constant -1.480 -5.03 .000 Drinking Frequency 0....789 0.525 5.67 .000 Positive Frame -0.317 -0.068 -0.81 .421 Negative Frame -0.838 -0.177 -2.08 .039 Positive Frame X Frequency 0.319 0.177 1.78 .077 Negative Frame X Frequency 0.513 0.249 2.66 .009 B = unstandardized regression...

Burpo, Jill Elizabeth

2007-09-17T23:59:59.000Z

310

Simulation Studies of Hydrogen Ion reflection from Tungsten for the Surface Production of Negative Hydrogen Ions  

SciTech Connect

The production efficiency of negative ions at tungsten surface by particle reflection has been investigated. Angular distributions and energy spectra of reflected hydrogen ions from tungsten surface are calculated with a Monte Carlo simulation code ACAT. The results obtained with ACAT have indicated that angular distributions of reflected hydrogen ions show narrow distributions for low-energy incidence such as 50 eV, and energy spectra of reflected ions show sharp peaks around 90% of incident energy. These narrow angular distributions and sharp peaks are favorable for the efficient extraction of negative ions from an ion source equipped with tungsten surface as negative ionization converter. The retained hydrogen atoms in tungsten lead to the reduction in extraction efficiency due to boarded angular distributions.

Kenmotsu, Takahiro; Wada, Motoi [Doshisha University, Kyotanabe, Kyoto 610-0394 (Japan)

2011-09-26T23:59:59.000Z

311

Vacuum insulation of the high energy negative ion source for fusion application  

SciTech Connect

Vacuum insulation on a large size negative ion accelerator with multiple extraction apertures and acceleration grids for fusion application was experimentally examined and designed. In the experiment, vacuum insulation characteristics were investigated in the JT-60 negative ion source with >1000 apertures on the grid with the surface area of {approx}2 m{sup 2}. The sustainable voltages varied with a square root of the gap lengths between the grids, and decreased with number of the apertures and with the surface area of the grids. Based on the obtained results, the JT-60SA (super advanced) negative ion source is designed to produce 22 A, 500 keV D{sup -} ion beams for 100 s.

Kojima, A.; Hanada, M.; Inoue, T.; Watanabe, K.; Taniguchi, M.; Kashiwagi, M.; Umeda, N.; Tobari, H. [Japan Atomic Energy Agency, Naka, Ibaraki 311-0193 (Japan); Hilmi, A.; Kobayashi, S.; Yamano, Y. [Saitama University, Saitama, Saitama-ken, 338-8570 (Japan); Grisham, L. R. [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)

2012-02-15T23:59:59.000Z

312

Photodissociation and charge transfer dynamics of negative ions studied with femtosecond photoelectron spectroscopy  

SciTech Connect

This dissertation presents studies aimed at understanding the potential energy surfaces and dynamics of isolated negative ions, and the effects of solvent on each. Although negative ions play important roles in atmospheric and solution phase chemistry, to a large extent the ground and excited state potential energy surfaces of gas phase negative ions are poorly characterized, and solvent effects even less well understood. In an effort to fill this gap, the author's coworkers and the author have developed a new technique, anion femtosecond photoelectron spectroscopy, and applied it to gas phase photodissociation and charge transfer processes. Studies are presented that (1) characterize the ground and excited states of isolated and clustered anions, (2) monitor the photodissociation dynamics of isolated and clustered anions, and (3) explore the charge-transfer-to-solvent states of atomic iodide clustered with polar and non-polar solvents.

Zanni, Martin T.

1999-12-17T23:59:59.000Z

313

Vibrational States of Hydrogen Molecules in One Third LHD Negative Ion Source  

SciTech Connect

The effect of the cesium on hydrogen negative ions is discussed using the vacuum ultraviolet emissions (VUV) from vibrational states of hydrogen molecules. The VUV spectrum from 90 to 165 nm is related to the H{sup -} production from the dissociative attachment of electrons to hydrogen molecules. The VUV spectra in hydrogen plasmas are measured in the extraction region of a negative ion source for neutral beam injector. Under the pure hydrogen discharge, the cesium vapor is introduced into the ion source to enhance the hydrogen negative ion density. When the same arc power of {approx}99 kW is applied in both with and without cesium admixture cases, the ratio of the observed VUV spectrum without to with cesium is not changed clearly. Therefore the production process of H{sup -} related to the wall/electrode surface would be enhanced rather than the volume production process.

Nishiura, M.; Tsumori, K. [National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292 (Japan); Matsumoto, Y. [Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514 (Japan); Wada, M. [Doshisha University, Kyotanabe, 610-0321 (Japan); Inoue, T. [Japan Atomic Energy Agency, 801-1, Mukoyama, Naka 311-0193 (Japan)

2011-09-26T23:59:59.000Z

314

Negative energy densities in integrable quantum field theories at one-particle level  

E-Print Network (OSTI)

We study the phenomenon of negative energy densities in quantum field theories with self-interaction. Specifically, we consider a class of integrable models (including the sinh-Gordon model) in which we investigate the expectation value of the energy density in one-particle states. In this situation, we classify the possible form of the stress-energy tensor from first principles. We show that one-particle states with negative energy density generically exist in non-free situations, and we establish lower bounds for the energy density (quantum energy inequalities). Demanding that these inequalities hold reduces the ambiguity in the stress-energy tensor, in some situations fixing it uniquely. Numerical results for the lowest spectral value of the energy density allow us to demonstrate how negative energy densities depend on the coupling constant and on other model parameters.

Bostelmann, Henning

2015-01-01T23:59:59.000Z

315

Negative specific heat, phase transition and particles spilling from a potential well  

SciTech Connect

For a finite number of noninteracting particles in a box with a potential well in the center, the microcanonical kinetic energy in dependence on the total energy as it is negative can be classified into three categories. The first exhibits a monotonical rise and the specific heat is positive. The second shows a diminishing sawtooth wave with a global rise. The last corresponds to the extreme case and takes the regular sawtooth wave form. The sawtooth wave portion associates periodically a kinetic energy fall in spite of an increase of the total energy; and we attribute to such a fall the negative specific heat. The phase transition can be defined when the relatively dense particle state in the well and relatively dilute particle state in the rest volume of the box coexist, and the appearance of the negative specific heat is sufficient but not necessary for the onset of the phase transition.

Rao, J. [School for Theoretical Physics, and Department of Applied Physics, Hunan University, Changsha 410082 (China); Department of Physics and Electronic Engineering, Hunan City University, Yiyang 413049 (China); Liu, Q.H. [School for Theoretical Physics, and Department of Applied Physics, Hunan University, Changsha 410082 (China)], E-mail: quanhuiliu@gmail.com; Liu, T.G.; Li, L.X. [School for Theoretical Physics, and Department of Applied Physics, Hunan University, Changsha 410082 (China)

2008-06-15T23:59:59.000Z

316

Negative differential resistance in electron tunneling in ultrathin films near the two-dimensional limit  

SciTech Connect

We report on our observation of negative differential resistance (NDR) in electron tunneling conductance in atomic-scale ultrathin Ag films on Si(111) substrates. NDR was observed by scanning tunneling spectroscopy measurements. The tunneling conductance depends on the electronic local density of states (LDOS) of the sample. We show that the sample bias voltage, at which negative differential resistance and peak negative conductance occur, depends on the film thickness. This can be understood from the variation in the LDOS of the Ag films as a function of film thickness down to the two-dimensional limit of one atomic layer. First principles density functional theory calculations have been used to explain the results.

Batabyal, R.; Abdul Wasey, A. H. M.; Mahato, J. C.; Das, Debolina; Roy, A.; Das, G. P.; Dev, B. N. [Department of Materials Science, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032 (India)

2013-01-21T23:59:59.000Z

317

DOE/EA-1680: Environmental Assessment and Initial Study/Proposed Mitigated Negative Declaration (March 2009)  

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

Engineered Geothermal Enhancement Engineered Geothermal Enhancement System Demonstration Project Environmental Assessment and Initial Study/Proposed Mitigated Negative Declaration March 2009 Prepared for The Bureau of Land Management 2550 North State Street Ukiah, CA 95482 Northern California Power Agency 651 Commerce Drive Roseville, CA 95678 Prepared by ICF Jones & Stokes 630 K Street, Suite 400 Sacramento, CA 95814 Environmental Assessment and Initial Study/Proposed Mitigated Negative Declaration Engineered Geothermal Enhancement System Demonstration Project March 2009 i Table of Contents Page Table of Contents ........................................................................................................................................... i List of Figures .............................................................................................................................................. iv

318

Scattering of High-Energy Positive and Negative Muons on Electrons  

Science Journals Connector (OSTI)

The elastic interaction of 10.1-GeV/c positive and 14.5-GeV/c negative muons with electrons in nuclear emulsion has been studied. Energies of the knock-on electrons calculated from scattering measurements were comparable with those obtained from their ejection angles. In the case of both positive and negative muon-electron elastic scattering we did not observe any departure of the muon from a Dirac-type particle with transferred energies up to 1.4 and 3 GeV, respectively. This is in contradiction with some of the previous results.

P. L. Jain and N. J. Wixon

1969-09-29T23:59:59.000Z

319

The Resonance Scattering Phenomenon of Fast Negatively Charged Particles in a Single Crystal  

E-Print Network (OSTI)

The energy spectrum of the extended attractive potential of a crystallographic row for negatively charged particles has quasi-bound states. It follows that a negatively charged particle with small transversal momentum component ($p_{\\bot} R <<1$) may undergo resonance scattering. Thus the resonance scattering phenomenon can be observed in a single crystal, when fast electrons move with a small glancing angle ($\\theta_0 << 1/pR$) to a crystallographic axis. The calculated results for the electrons and angular widths of resonance peaks are consistent with experimental data.

Kovalev, Gennady V

2015-01-01T23:59:59.000Z

320

3D Monte Carlo Modeling of the EEDF in Negative Hydrogen Ion Sources  

SciTech Connect

For optimization and accurate prediction of the amount of H{sup -} ion production in negative ion sources, analysis of electron energy distribution function (EEDF) is necessary. We are developing a numerical code which analyzes EEDF in tandem-type arc-discharge sources. It is a three-dimensional Monte Carlo simulation code with the realistic geometry and magnetic configuration. Coulomb collision between electrons is treated with 'Binary Collision' model and collisions with hydrogen species are treated with 'Null-collision (NC)' method. We have applied this code to the analysis of the JAEA 10 ampere negative ion source. The numerical result shows that the obtained EEDFs reasonably agree with experimental results.

Terasaki, R.; Hatayama, A.; Shibata, T. [Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Yokohama 223-8522 (Japan); Inoue, T. [Japan Atomic Energy Agency, 801-1 Mukouyama, Naka 311-0193 (Japan)

2011-09-26T23:59:59.000Z

Note: This page contains sample records for the topic "negative daily imbalances" 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

Structure of negatively charged muonium in n-type GaAs  

Science Journals Connector (OSTI)

Muon level-crossing resonance and muon-spin-rotation measurements on heavily doped n-type GaAs:Si and GaAs:Te show that the majority of positive muons implanted at room temperature form an isolated diamagnetic muonium center located at a high-symmetry site with Ga neighbors along the ?111? direction(s). These experiments, together with theoretical considerations, imply that negatively charged muonium is at or near the tetrahedral interstitial site with four Ga nearest-neighbor atoms. Except for zero-point energy differences, these results should model negatively charged isolated hydrogen in GaAs.

K.H. Chow; R.F. Kiefl; W.A. MacFarlane; J.W. Schneider; D.W. Cooke; M. Leon; M. Paciotti; T.L. Estle; B. Hitti; R.L. Lichti; S.F.J. Cox; C. Schwab; E.A. Davis; A. Morrobel-Sosa; L. Zavieh

1995-05-15T23:59:59.000Z

322

Designing a square invisibility cloak using metamaterials made of stacked positive-negative index slabs  

Science Journals Connector (OSTI)

We present a design of a square invisibility cloak based on triangular transformations. In triangular transformations certain areas of the cloak are squeezed to be infinitesimal in the virtual space. This results in cloak materials whose constitutive parameters are singular. We show rigorously that these prescribed singular materials can be emulated by metamaterials made of stacked positive-negative index slabs. We use numerical simulations to demonstrate the conceived square cloak which in principle can be constructed using only homogenous and non-singular materials. The proposed square invisibility cloak suggests another important application of negative index media.

Guanghao Zhu

2013-01-01T23:59:59.000Z

323

Negative ion beam injection apparatus with magnetic shield and electron removal means  

DOE Patents (OSTI)

A negative ion source is constructed to produce H.sup.- ions without using Cesium. A high percentage of secondary electrons that typically accompany the extracted H.sup.- are trapped and eliminated from the beam by permanent magnets in the initial stage of acceleration. Penetration of the magnetic field from the permanent magnets into the ion source is minimized. This reduces the destructive effect the magnetic field could have on negative ion production and extraction from the source. A beam expansion section in the extractor results in a strongly converged final beam.

Anderson, Oscar A. (Berkeley, CA); Chan, Chun F. (Hayward, CA); Leung, Ka-Ngo (Hercules, CA)

1994-01-01T23:59:59.000Z

324

Non-magnetic nano-composites for optical and infrared negative refraction index media  

E-Print Network (OSTI)

We develop an approach to use nanostructured plasmonic materials as a non-magnetic negative-refractive index system at optical and near-infrared frequencies. In contrast to conventional negative refraction materials, our design does not require periodicity and thus is highly tolerant to fabrication defects. Moreover, since the proposed materials are intrinsically non-magnetic, their performance is not limited to proximity of a resonance so that the resulting structure has relatively low loss. We develop the analytical description of the relevant electromagnetic phenomena and justify our analytic results via numerical solutions of Maxwell equations.

Robyn Wangberg; Justin Elser; Evgenii E. Narimanov; Viktor A. Podolskiy

2005-06-27T23:59:59.000Z

325

T-633: BIND RRSIG RRsets Negative Caching Off-by-one Bug Lets Remote Users  

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

3: BIND RRSIG RRsets Negative Caching Off-by-one Bug Lets 3: BIND RRSIG RRsets Negative Caching Off-by-one Bug Lets Remote Users Deny Service T-633: BIND RRSIG RRsets Negative Caching Off-by-one Bug Lets Remote Users Deny Service May 31, 2011 - 3:35pm Addthis PROBLEM: A vulnerability was reported in BIND. A remote user can cause denial of service conditions. PLATFORM: BIND Version(s): 9.4-ESV-R3 and later, 9.6-ESV-R2 and later, 9.6.3, 9.7.1 and later, 9.8.0 and later; prior to 9.4-ESV-R4-P1, 9.6-ESV-R4-P1, 9.7.3-P1, 9.8.0-P2 ABSTRACT: A remote DNS server can supply very large RRSIG RRsets in a negative response to trigger an off-by-one error in a buffer size check and cause the target requesting named process to crash. A remote user can cause named to crash. reference LINKS: SecurityTracker Alert ID: 1025575 SecurityTracker Alert ID: 1025572

326

Growth Temperature and Genome Size in Bacteria Are Negatively Correlated, Suggesting Genomic Streamlining  

E-Print Network (OSTI)

Growth Temperature and Genome Size in Bacteria Are Negatively Correlated, Suggesting Genomic.wagner@ieu.uzh.ch; nsabath@gmail.com. Accepted: March 25, 2013 Abstract Prokaryotic genomes are small and compact. Either this feature is caused by neutral evolution or by natural selection favoring small genomes--genome streamlining

Wagner, Andreas

327

Contrib. Plasma Phys. 26 (1986) 1, 1-12 Sudden Jumps, Hysteresis, and Negative Resistance  

E-Print Network (OSTI)

are found in glow discharges, carbon arcs, thermionic converters, fluorescent lamps and four-layer diodes [lContrib. Plasma Phys. 26 (1986) 1, 1-12 Sudden Jumps, Hysteresis, and Negative Resistance in an Argon Plasma Discharge I. Discharges with No Magnetic Field R. A. BOSCHand R. L. MERLINO Department

Merlino, Robert L.

328

Extraction of food consumption systems by non-negative matrix factorization (NMF) for the  

E-Print Network (OSTI)

Extraction of food consumption systems by non-negative matrix factorization (NMF- torization (NMF) techniques can be applied to food consumption data in order to understand these combinations of consumption data through latent vectors with nonnega- tive coefficients, we call consumption systems

Paris-Sud XI, Université de

329

Depolarization of Negative Muons in Low-Z Muonic Atoms with Nonzero Nuclear Spin  

Science Journals Connector (OSTI)

The decay asymmetries resulting from the residual polarization of negative muons were measured in the components of the ground-state hyperfine doublet of Li6, Li7, Be9, B10, and B11 muonic atoms. The results show a characteristic consequence of the muonmucleus magnetic dipole coupling during the muonic cascade.

D. Favart; F. Brouillard; L. Grenacs; P. Igo-Kemenes; P. Lipnik; P. C. Macq

1970-11-09T23:59:59.000Z

330

Equation of state of water under negative pressure Kristina Davitt,a  

E-Print Network (OSTI)

Equation of state of water under negative pressure Kristina Davitt,a Etienne Rolley, Frédéric equation of state of metastable liquid water down to the acoustic cavitation threshold. Empirical equations of state of water are based on experimental data at positive pressure; the validity of their extrapolation

Caupin, Frédéric

331

Structure-property relations in negative permittivity reststrahlen materials for IR metamaterial applications.  

SciTech Connect

We will present a study of the structure-property relations in Reststrahlen materials that possess a band of negative permittivities in the infrared. It will be shown that sub-micron defects strongly affect the optical response, resulting in significantly diminished permittivities. This work has implications on the use of ionic materials in IR-metamaterials.

Kotula, Paul Gabriel; Rodriguez, Mark Andrew; Shelton, David J. (University of Central Florida); Carroll, James F., III; Boreman, Glenn D. (University of Central Florida); Sinclair, Michael B.; Ihlefeld, Jon F.; Ginn, James Cleveland, III; Clem, Paul Gilbert; Matias, Vladimir (Los Alamos National Laboratory)

2010-09-01T23:59:59.000Z

332

An adaptive grid refinement strategy for the simulation of negative streamers  

E-Print Network (OSTI)

to high electric fields, non-equilibrium ionization pro- cesses, so-called discharges, occur. They may and on the pressure and volume of the medium. One distinguishes the dark, glow or arc discharges that are stationary of negative streamers during electric breakdown of a non-attaching gas can be described by a two-fluid model

Ebert, Ute

333

Halos generated by negative cloud-to-ground lightning H. U. Frey,1  

E-Print Network (OSTI)

are collected from about 20 msec before the triggering lightning flash up to 200 msec after it. It is thereforeHalos generated by negative cloud-to-ground lightning H. U. Frey,1 S. B. Mende,1 S. A. Cummer,2 J] The Imager for Sprites and Upper Atmospheric Lightning (ISUAL) on the FORMOSAT-2 spacecraft observes

Cummer, Steven A.

334

Lightning morphology and impulse charge moment change of high peak current negative strokes  

E-Print Network (OSTI)

with two unusual flash types that both initially develop as positive (normal) intracloud lightning currents, and how is this variability connected to the in- cloud structure of lightning flashes? [3Lightning morphology and impulse charge moment change of high peak current negative strokes Gaopeng

Cummer, Steven A.

335

Conductive Polypyrrole/Tungsten Oxide Metacomposites with Negative Permittivity Jiahua Zhu,  

E-Print Network (OSTI)

) nanocomposites reinforced with tungsten oxide (WO3) nanoparticles (NPs) and nanorods (NRs) are fabricatedConductive Polypyrrole/Tungsten Oxide Metacomposites with Negative Permittivity Jiahua Zhu, Suying techniques to form PNCs. Therefore, synthesis techniques have been developed and optimized to incorporate

Guo, John Zhanhu

336

A NegativeOverhead, SelfTimed Pipeline Brian D. Winters and Mark R. Greenstreet  

E-Print Network (OSTI)

A Negative­Overhead, Self­Timed Pipeline Brian D. Winters and Mark R. Greenstreet Department a novel variation of wave pipelining that we call ``surfing.'' In previous wave pipelined designs, timing variation of wave pipelin­ ing called ``surfing.'' In surfing pipelines, a timing pulse is propagated along

Greenstreet, Mark

337

Rare measurements of a sprite with halo event driven by a negative lightning discharge over Argentina  

E-Print Network (OSTI)

Argentina M. J. Taylor,1 M. A. Bailey,1 P. D. Pautet,1 S. A. Cummer,2 N. Jaugey,2 J. N. Thomas,3,4 N. N measurements were made of a mesoscale thunderstorm observed on February 22­23, 2006 over northern Argentina of a sprite with halo event driven by a negative lightning discharge over Argentina, Geophys. Res. Lett., 35

Thomas, Jeremy N.

338

Negative Association of Neuroticism with Brain Volume Ratio in Healthy Humans  

E-Print Network (OSTI)

Negative Association of Neuroticism with Brain Volume Ratio in Healthy Humans Brian Knutson, Reza Momenan, Robert R. Rawlings, Grace W. Fong, and Daniel Hommer Background: Brain volume decreases reactivity (i.e., neuroti- cism) would also predict reductions in brain volume. Methods: Brain volume ratios

Knutson, Brian

339

Negative Muon Chemistry: The Quantum Muon Effect and the Finite Nuclear Mass Effect  

Science Journals Connector (OSTI)

Negative Muon Chemistry: The Quantum Muon Effect and the Finite Nuclear Mass Effect ... In this approach electrons and muons are described as quantum waves. ... The nonrelativistic Hamiltonian, Htot, of a molecular system containing Ne electrons, N? muons, and Nnuc nuclei is(1)here m? is the muon mass and MA and ZA are the mass and charge of nucleus A, respectively. ...

Edwin Posada; Félix Moncada; Andrés Reyes

2014-09-04T23:59:59.000Z

340

Negative potentials above the dayside lunar surface in the terrestrial plasma sheet: Evidence  

E-Print Network (OSTI)

plasma sheet and in daylight, large, unexpected negative potentials (-500 V) were measured. In this paper can have multiple solutions, namely, a monotonic solution, where the potential constantly increases or decreases, or a nonmonotonic solution, where the potential reaches a minimum (or maximum) above the surface

California at Berkeley, University of

Note: This page contains sample records for the topic "negative daily imbalances" 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

Spectroscopic Investigation of Al2N and Its Anion via Negative Ion Photoelectron Spectroscopy  

E-Print Network (OSTI)

Spectroscopic Investigation of Al2N and Its Anion via Negative Ion Photoelectron Spectroscopy photoelectron spectroscopy was used to elucidate the electronic and geometric structure of the gaseous Al2N/Al2N the adiabatic electron affinity of Al2N, 2.571 ( 0.008 eV, along with geometry changes upon photodetachment

Neumark, Daniel M.

342

Curve crossing and negative refraction in simulations of near-field coupled metallic nanoparticle arrays  

E-Print Network (OSTI)

Curve crossing and negative refraction in simulations of near-field coupled metallic nanoparticle-polariton LSPP dispersion on regular arrays of metal nanoparticles in the weak-field and weak-damping limits nanoparticle ar- rays to guide electromagnetic energy of optical frequencies along geometries smaller than

Baer, Roi

343

Dual beta-lactam therapy for serious Gram-negative infections: is it time to revisit?  

Science Journals Connector (OSTI)

Abstract We are rapidly approaching a crisis in antibiotic resistance, particularly among Gram-negative pathogens. This, coupled with the slow development of novel antimicrobial agents, underscores the exigency of redeploying existing antimicrobial agents in innovative ways. One therapeutic approach that was heavily studied in the 1980s but abandoned over time is dual beta-lactam therapy. This article reviews the evidence for combination beta-lactam therapy. Overall, in vitro, animal and clinical data are positive and suggest that beta-lactam combinations produce a synergistic effect against Gram-negative pathogens that rivals that of beta-lactam–aminoglycoside or beta-lactam–fluoroquinolone combination therapy. Although the precise mechanism of improved activity is not completely understood, it is likely attributable to an enhanced affinity to the diverse penicillin-binding proteins found among Gram negatives. The collective data indicate that dual beta-lactam therapy should be revisited for serious Gram-negative infections, especially in light of the near availability of potent beta-lactamase inhibitors, which neutralize the effect of problematic beta-lactamases.

Christine Rahme; Jill M. Butterfield; Anthony M. Nicasio; Thomas P. Lodise

2014-01-01T23:59:59.000Z

344

Alternating fluxes of positive and negative ions from an ionion plasma Sivananda K. Kanakasabapathya)  

E-Print Network (OSTI)

Alternating fluxes of positive and negative ions from an ion­ion plasma Sivananda K. Kanakasabapathya) and Lawrence J. Overzet Plasma Applications Laboratory, Erik Jonsson School of Engineering and Demetre Economou Plasma Processing Laboratory, Department of Chemical Engineering, University of Houston

Economou, Demetre J.

345

Relationship Between Solute Permeability and Osmotic Remediability in a Galactose-Negative Strain of Saccharomyces cerevisiae  

Science Journals Connector (OSTI)

...workers defined an osmotic remedial mutant as one in which the...inorganic, are effective osmotic remedial agents. The results reported here are a continuation of an investigation into the genetic and physiological...galactose-negative, osmotic remedial mutant. In S. cerevisiae...

John Bassel; Howard C. Douglas

1970-11-01T23:59:59.000Z

346

Bell States and Negative Sentences in the Distributed Model of Meaning  

E-Print Network (OSTI)

, but not in the same order. Alice puts the meaning into words according to the rules of the syntax. Bob recognizes KS Bob shared syntax shared meaning time // John does not like Mary Fig. 1. Alice informs BobQPL 2009 Bell States and Negative Sentences in the Distributed Model of Meaning Anne Preller 1

Paris-Sud XI, Université de

347

Bell States and Negative Sentences in the Distributed Model of Meaning  

E-Print Network (OSTI)

, but not in the same order. Alice puts the meaning into words according to the rules of the syntax. Bob recognizes time // John does not like Mary Fig. 1. Alice informs Bob reconstructs the meaning of the wordsQPL 2009 Bell States and Negative Sentences in the Distributed Model of Meaning Anne Preller 1

Paris-Sud XI, Université de

348

Fisheries Research 78 (2006) 309322 A Poisson and negative binomial regression model of sea turtle  

E-Print Network (OSTI)

Fisheries Research 78 (2006) 309­322 A Poisson and negative binomial regression model of sea turtle February 2005; received in revised form 28 November 2005; accepted 15 December 2005 Abstract Sea turtle measures, including a swordfish harvest ban, have been adopted to protect sea turtles. This study explores

Hawai'i at Manoa, University of

349

MULTIMODAL VOICE CONVERSION USING NON-NEGATIVE MATRIX FACTORIZATION IN NOISY ENVIRONMENTS  

E-Print Network (OSTI)

MULTIMODAL VOICE CONVERSION USING NON-NEGATIVE MATRIX FACTORIZATION IN NOISY ENVIRONMENTS Kenta 1-1, Rokkodai, Nada, Kobe, 6578501, Japan ABSTRACT This paper presents a multimodal voice conversion with that of a conventional Gaussian Mixture Model (GMM)-based method. Index Terms-- voice conversion, multimodal, image

Takiguchi, Tetsuya

350

Voice Conversion based on Non-negative Matrix Factorization in Noisy Environments  

E-Print Network (OSTI)

Voice Conversion based on Non-negative Matrix Factorization in Noisy Environments Takao Fujii, Ryo conversion (VC) tech- nique for noisy environments. We prepared parallel exemplars (dictionary) that consist. In the proposed method, a Gaussian Mixture Model (GMM) -based conversion method is also applied to the feature

Takiguchi, Tetsuya

351

The Most Negative and Most Positive Values of the Spin Operator for a Many Nucleon System  

E-Print Network (OSTI)

Using the LS coupling we find the most positive and negative values of the spin operator sigma.These theoretical limits are much wider than the "empirical" single particle limits.A comparison of the Nilsson and Schmidt models is made for isoscalar moments.

Larry Zamick

2011-01-31T23:59:59.000Z

352

Negative specific heat of a magnetically self-confined plasma torus  

Science Journals Connector (OSTI)

...fusion plasma are considered. The goal of the controlled thermonuclear fusion program is to make the energy source that powers our...case the negative specific heat may aid the ignition of thermonuclear burning. The “if” part is good news; the bad news...

Michael K.-H. Kiessling; Thomas Neukirch

2003-01-01T23:59:59.000Z

353

Sound beyond the speed of light: Measurement of negative group velocity in an acoustic loop filter  

E-Print Network (OSTI)

Sound beyond the speed of light: Measurement of negative group velocity in an acoustic loop filter of magnitude difference between the speeds of sound and light. © 2007 American Institute of Physics. DOI: 10,2 A central issue is whether the speed of light in vacuum c constituted an upper limit to the group velocity

Robertson, William

354

High-Power Negative Ion Sources for Neutral Beam Injectors in Large Helical Device  

SciTech Connect

Large-scaled hydrogen negative-ion sources, in which cesium is introduced in the source plasma, have been developed for neutral beam injectors in Large Helical Device, and their operational characteristics are reviewed. For high-efficient negative ion production, configuration of the magnetic filter field and the cusp magnetic field was optimized, resulting in a high arc efficiency for the negative ion production of 0.23A/kW. With use of a multi-slotted grounded grid, the gas pressure in the acceleration gap is lowered, leading to reduction of the heat load of the grounded grid. As a result, the voltage holding ability is much improved, and the rated energy of 180 keV is achieved in a short conditioning period of 4 days. The injection power is increased linearly to the 5/2 power of the beam energy and reached 5.7MW with an energy of 184keV, which exceeds the specified value of 180keV-5MW. Beam uniformity has been improved with an individual control of the local arc discharge by adjusting 12-divided output voltages of the arc and filament power supplies. The injection duration has been extended to 120sec with a reduced power. Spectroscopic measurement has been carried out for the source plasma. The cesium-ion line is observed in the plasma volume, and, however, the negative ion production is not influenced by the cesium ions in the plasma because the negative ions should be produced on the cesium-covered plasma grid surface.

Takeiri, Y.; Kaneko, O.; Tsumori, K.; Ikeda, K.; Nagaoka, K.; Osakabe, M.; Oka, Y.; Asano, E.; Kondo, T.; Sato, M.; Shibuya, M.; Komada, S. [National Institute for Fusion Science, Toki 509-5292 (Japan); Fantz, U. [Max-Planck-Institut fuer Plasmaphysik, Boltzmannstr. 2, Garching (Germany)

2007-08-10T23:59:59.000Z

355

Potential formation in a collisionless plasma produced in an open magnetic field in presence of volume negative ion source  

SciTech Connect

The electric potential near a wall for a multi-species plasma with volume produced negative ions in presence of axially varying magnetic field is studied following an analytical-numerical approach. A constant negative ion source is assumed throughout the plasma volume, along with finite temperature positive ions and Boltzmann electrons. The particles are assumed to be guided by an open magnetic field that has its maximum at the centre, and field strength decreasing towards the walls. The one dimensional (1D) Poisson equation is derived using an analytical approach, and then solved numerically to study the potential profiles. Effect of (a) negative ion production rate, (b) magnetic field profile, and (c) negative ion temperature on the potential profile has been investigated. A potential peak appears near the wall when the negative ion temperature and density are sufficiently high. Also, the presence of negative ions further decreases the potential in the plasma region for a finite Debye Length (?{sub D})

Phukan, Ananya, E-mail: ananya.phukan26@gmail.com; Goswami, K. S.; Bhuyan, P. J. [Centre of Plasma Physics, Institute for Plasma Research Sonapur, Kamrup (M), Assam 782402 (India)

2014-08-15T23:59:59.000Z

356

A subwavelength near-infrared negative index material Xuhuai Zhang, Marcelo Davano, Yaroslav Urzhumov, Gennady Shvets, and Stephen R. Forrest  

E-Print Network (OSTI)

A subwavelength near-infrared negative index material Xuhuai Zhang, Marcelo Davanço, Yaroslav://scitation.aip.org/termsconditions. Downloaded to IP: 129.116.140.116 On: Thu, 13 Mar 2014 15:08:47 #12;A subwavelength near-infrared negative.1063/1.3110957 Negative index materials NIMs 1,2 have recently been reported at near-infrared or higher optical

Texas at Austin, University of

357

Wind Turbines Do Not Negatively Impact Density and Nest Success in Grassland Birds at a North Texas Wind Farm.  

E-Print Network (OSTI)

??Tremendous growth in wind energy development in the Great Plains has the potential to negatively impact the nesting ecology of many grassland birds. In 2010-2011,… (more)

Hatchett, Erin S.

2011-01-01T23:59:59.000Z

358

An Application of Multi-Level Bayesian Negative Binomial Models with Mixed Effects on Motorcycle Crashes in Ohio.  

E-Print Network (OSTI)

??Motorcycle crashes compose an increasing proportion of United States motor vehicle crashes and fatalities. Through Full Bayesian negative binomial models with various types of random… (more)

Flask, Thomas V.

2012-01-01T23:59:59.000Z

359

Roughening and removal of surface contamination from beryllium using negative transferred-arc cleaning  

SciTech Connect

Negative transferred-arc (TA) cleaning has been used extensively in the aerospace industry to clean and prepare surfaces prior to plasma spraying of thermal barrier coatings. This non-line of sight process can improve the bond strength of plasma sprayed coatings to the substrate material by cleaning and macroscopically roughening the surface. A variation of this cleaning methodology is also used in gas tungsten arc (GTA) welding to cathodically clean the surfaces of aluminum and magnesium prior to welding. Investigations are currently being performed to quantify the degree in which the negative transferred-arc process can clean and roughen metal surfaces. Preliminary information will be reported on the influence of processing conditions on roughening and the removal of carbon and other contaminates from the surface of beryllium. Optical, spectral and electrical methods to quantify cleaning of the surface will also be discussed. Applications for this technology include chemical-free precision cleaning of beryllium components.

Castro, R.G.; Hollis, K.J.; Elliott, K.E. [Los Alamos National Lab., NM (United States). Materials Science and Technology Div.

1997-12-01T23:59:59.000Z

360

Double and Negative Reflection of Cold Atoms in Non-Abelian Gauge Potentials  

SciTech Connect

Atom reflection is studied in the presence of a non-Abelian vector potential proportional to a spin-1/2 operator. The potential is produced by a relatively simple laser configuration for atoms with a tripod level scheme. We show that the atomic motion is described by two different dispersion branches with positive or negative chirality. As a consequence, atom reflection shows unusual features, since an incident wave may split into two reflected ones at a barrier, an ordinary specular reflection, and an additional nonspecular one. Remarkably, the latter wave can exhibit negative reflection and may become evanescent if the angle of incidence exceeds a critical value. These reflection properties are crucial for future designs in non-Abelian atom optics.

Juzeliunas, Gediminas [Institute of Theoretical Physics and Astronomy of Vilnius University, A. Gostauto 12, Vilnius 01108 (Lithuania); Department of Physics and Technology, Vilnius Pedagogical University, Studentu 39, Vilnius 08106 (Lithuania); Ruseckas, Julius [Institute of Theoretical Physics and Astronomy of Vilnius University, A. Gostauto 12, Vilnius 01108 (Lithuania); Jacob, Andreas; Santos, Luis [Institut fuer Theoretische Physik, Leibniz Universitaet, Hannover D30167 (Germany); Oehberg, Patrik [SUPA, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS (United Kingdom)

2008-05-23T23:59:59.000Z

Note: This page contains sample records for the topic "negative daily imbalances" 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

Emission of Negative Electricity from Nickel when Bombarded by Positive Lithium Ions  

Science Journals Connector (OSTI)

A nickel target was bombarded with positive lithium ions and observations were made of the number of negative charges emitted per positive ion striking the target. The energies of the bombarding ions were within the ranges 1000 to 2000 electron-volts and 5000 to 20,000 electron-volts, approximately. Observations were made with the target at room temperature and at a yellowish-red heat. There is a marked difference between the curves found for the two cases. For the cold target the curve has a maximum between 10,000 and 11,000 volts, while the number of negative charges emitted per positive ion from the hot target increases from 0.13 at 1000 volts to 2.35 at 20,000 volts, no maximum having been found.

W. S. Stein

1932-05-01T23:59:59.000Z

362

Negative refraction with tunable absorption in an active dense gas of atoms  

E-Print Network (OSTI)

Applications of negative index materials (NIM) presently are severely limited by absorption. Next to improvements of metamaterial designs, it has been suggested that dense gases of atoms could form a NIM with negligible losses. In such gases, the low absorption is facilitated by quantum interference. Here, we show that additional gain mechanisms can be used to tune and effectively remove absorption in a dense gas NIM. In our setup, the atoms are coherently prepared by control laser fields, and further driven by a weak incoherent pump field to induce gain. We employ nonlinear optical Bloch equations to analyze the optical response. Metastable Neon is identified as a suitable experimental candidate at infrared frequencies to implement a lossless active negative index material.

P. P. Orth; R. Hennig; C. H. Keitel; J. Evers

2012-10-17T23:59:59.000Z

363

Sustainability of Tunisia's road transport: is there an environmental Kuznets curve for negative externalities?  

Science Journals Connector (OSTI)

Negative externalities of transport sector in Tunisia have become serious problems for the environment and population. This article discusses the sustainability of this sector with the application of the environmental Kuznets curve model to a developing country like Tunisia over the period from 1989 to 2008. Results indicate an inverted U-shape relationship for all selected negative externalities: road energy consumption, road accidents, and urban traffic-related air pollutants (sulphur dioxide, suspended particulate and carbon dioxide) except a downward curve with L-shaped for nitrogen dioxide. Analysis of mobility behaviour shows that use of private vehicles increases with the amelioration of the purchasing power, life style and mobility behaviour in Tunisia's mega cities. Given the scarcity of financial resources of the country to develop rail infrastructure, it would be more convenient to apply economic and fiscal instruments to discourage the use of private cars and encourage group travel.

Rafaa Mraihi; Riadh Harizi; Sondes Alaouia

2014-01-01T23:59:59.000Z

364

Reverse Doppler effect of magnons with negative group velocity scattered from a moving Bragg grating  

Science Journals Connector (OSTI)

We demonstrate experimentally and theoretically the reverse Doppler effect when magnons with negative group velocity are reflected off a moving Bragg grating. This grating, which represents a moving magnonic crystal, is created in an yttrium-iron-garnet film by the periodic strain induced by a traveling surface acoustic wave. As reflection occurs from a crystal rather than from a single reflecting surface, the wave number of the scattered wave is strictly determined by a momentum conservation law. Magnons scattered from the approaching (receding) magnonic crystal are found to be shifted down (up) in frequency. This result, together with an earlier report of reverse Doppler shift from moving sources [D. D. Stancil et al., Phys. Rev. B, 74, 060404(R) (2006)], establishes that the reverse Doppler effect is a universal phenomenon in systems with negative group velocity and not restricted to left-handed materials.

A. V. Chumak; P. Dhagat; A. Jander; A. A. Serga; B. Hillebrands

2010-04-16T23:59:59.000Z

365

Experimental study on hard X-rays emitted from metre-scale negative discharges in air  

E-Print Network (OSTI)

We investigate the development of meter long negative discharges and focus on their X-ray emissions. We describe appearance, timing and spatial distribution of the X-rays. They appear in bursts of nanosecond duration mostly in the cathode area. The spectrum can be characterized by an exponential function with 200 keV characteristic photon energy. With nanosecond-fast photography we took detailed images of the pre-breakdown phenomena during the time when X-rays were registered. We found bipolar discharge structures, also called "pilot systems", in the vicinity of the cathode. As in our previous study of X-rays from positive discharges, we correlate the X-ray emission with encounters between positive and negative streamers. We suggest that a similar process is responsible for X-rays generated by lightning leaders.

Kochkin, P O; Ebert, Ute

2015-01-01T23:59:59.000Z

366

A three-dimensional model for negative half cell of the vanadium redox flow battery  

Science Journals Connector (OSTI)

A stationary, isothermal, three-dimensional model for negative half cell of the vanadium redox flow battery is developed, which is based on the comprehensive conservation laws, such as charge, mass and momentum, together with a kinetic model for reaction involving vanadium species. The model is validated against the results calculated by the available two-dimensional model. With the given geometry of the negative half cell, the distributions of velocity, concentration, overpotential and transfer current density in the sections that are perpendicular and parallel to the applied current are studied. It is shown that the distribution of the electrolyte velocity in the electrode has significant impact on the distribution of concentration, overpotential and transfer current density. The lower velocity in the electrode will cause the higher overpotential, further result in the side reaction and corrosion of key materials locally. The development of the design of the vanadium redox flow battery is discussed, and the further research is proposed.

Xiangkun Ma; Huamin Zhang; Feng Xing

2011-01-01T23:59:59.000Z

367

Photo-neutralization of Negative Ion Beam for Future Fusion Reactor  

SciTech Connect

An exploratory study of negative ion beam photo-neutralization for future fusion reactors is explained. A refolded Fabry-Perot cavity system is proposed, with which a 60% neutralisation efficiency could be reached with low electric power consumption. The system would make use of sophisticated optical-cavity locking systems, which have been developed recently for gravitational-wave optical detection. The ITER Neutral beam Injector is taken as an example.

Chaibi, W.; Simonin, A. [CEA, IRFM, F-13108 St Paul lez Durance (France); Blondel, C.; Cabaret, L.; Delsart, C.; Drag, C. [Laboratoire Aime Cotton, CNRS-Universite Paris XI, Bat 505 Campus d'Orsay 91405 Orsay (France)

2009-03-12T23:59:59.000Z

368

Turning a negative into a positive: Researchers find promising use for excessive nitrate  

E-Print Network (OSTI)

acre of nitrogen for each inch of water applied. tx H2O | pg. 17 _ Turning a negative into a positive tx H2O | pg. 18 According to Sij, previous research has shown that properly designed and managed drip irrigation systems reduce deep percola... agencies involved in the project were local soil and water conservation districts, U.S. Department of Agriculture?s Natural Resources Conservation Service, the Texas AgriLife Extension Service, and Rolling Plains Groundwater Conservation District...

Wythe, Kathy

2009-01-01T23:59:59.000Z

369

Low energy milling method, low crystallinity alloy, and negative electrode composition  

DOE Patents (OSTI)

A method of making nanostructured alloy particles includes milling a millbase in a pebble mill containing milling media. The millbase comprises: (i) silicon, and (ii) at least one of carbon or a transition metal, and wherein the nanostructured alloy particles are substantially free of crystalline domains greater than 50 nanometers in size. A method of making a negative electrode composition for a lithium ion battery including the nanostructured alloy particles is also disclosed.

Le, Dihn B; Obrovac, Mark N; Kube, Robert Y; Landucci, James R

2012-10-16T23:59:59.000Z

370

A study of temperature compensating circuits for voltage references which use negative temperature coefficient zener diodes  

E-Print Network (OSTI)

A STUDY OF TEMPERATURE COMPENSATING CIRCUITS FOR VOLTAGE REFERENCES WHICH USE NEGATIVE TEMPERATURE COEFFICIENT ZENER DIODES A Thesis By SPENCER DELANO COLEMAN Submitted to the Graduate School of the Agricultural and Mechanical College... ZENER DIODES A Thesis By SPENCER DELANO COLEMAN Approved as to style and content by: Chairman of Co mittee Head of Department May 1961 ACKNOWLEDGMENTS The author wishes to express his sincere gratitude to the members of his graduate committee...

Coleman, Spencer Delano

2012-06-07T23:59:59.000Z

371

Hydridable material for the negative electrode in a nickel-metal hydride storage battery  

SciTech Connect

A monophase hydridable material for the negative electrode of a nickel-metal hydride storage battery with a "Lave's phase" structure of hexagonal C14 type (MgZn.sub.2) has the general formula: Zr.sub.1-x Ti.sub.x Ni.sub.a Mn.sub.b Al.sub.c Co.sub.d V.sub.e where ##EQU1##

Knosp, Bernard (Neuilly-sur-Seine, FR); Bouet, Jacques (Paris, FR); Jordy, Christian (Dourdan, FR); Mimoun, Michel (Neuilly-sur-Marne, FR); Gicquel, Daniel (Lanorville, FR)

1997-01-01T23:59:59.000Z

372

Electrochemical cell with negative active material based on an alkali or alkaline earth metal  

SciTech Connect

In an electrochemical cell the negative active material is an alkali or alkaline earth metal, such as lithium, and the electrolyte comprises a solute and at least one solvent selected from the liquid oxyhalides and which serves also as the positive active material. The electrolyte further comprises a mineral substance the effect of which is to significantly reduce the voltage rise delay of the cell.

Vallin, D.; Chenebault, P.; Grassien, J.-V.; Kerouanton, A.

1985-10-15T23:59:59.000Z

373

Vorticity imbalance and stability in relation to convection  

E-Print Network (OSTI)

for other times are shown in Appendix A. 1* ~ a 22 Qi a, \\--g 8 2&Y ' 6 t 1*. . a ' (g W , c" . a * I Fig. 3. NDR grid and composited field for 0000 GMT on 25 April 1975. 13 4. SYNOPTIC CONDITIONS During AVE IV, severe weather..., henceforth referred to as squall line one, had already formed on the front (Fig. 4). This squall line and associated short wave moved to a position off the East Coast by the end of the experiment. 44 12 24 24 24 H 44 QS I 24 Fig. 4. Surface chart...

Read, William Light

1976-01-01T23:59:59.000Z

374

Combating the Class Imbalance Problem in Small Sample Data Sets  

E-Print Network (OSTI)

Performance, Na??ve Bayes . . . . . . . . . . . . . . 77 vi List of Tables 2.1 Cost Matrix for Cancer Prediction . . . . . . . . . . . . . . . . . . 21 3.1 Feature Selection Formulas . . . . . . . . . . . . . . . . . . . . . . 35 4.1 Data Sets... for the different classes. The costs for classifying samples into different classes are listed in a cost matrix. The specific cost matrix for a problem is occasionally explicitly stated, but much of the time, it is simply an implicit part of the problem. Thus...

Wasikowski, Michael

2009-07-07T23:59:59.000Z

375

T-677: F5 BIG-IP BIND Negative Caching RRSIG RRsets Denial of Service  

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

7: F5 BIG-IP BIND Negative Caching RRSIG RRsets Denial of 7: F5 BIG-IP BIND Negative Caching RRSIG RRsets Denial of Service Vulnerability T-677: F5 BIG-IP BIND Negative Caching RRSIG RRsets Denial of Service Vulnerability July 27, 2011 - 3:58pm Addthis PROBLEM: F5 has acknowledged a vulnerability in BIG-IP, which can be exploited by malicious people to cause a DoS (Denial of Service). PLATFORM: The vulnerability is reported in the following products and versions: BIG-IP LTM versions 9.0.0 through 9.4.8, 10.0.0 through 10.1.0, and 10.2.0 through 10.2.2 BIG-IP GTM versions 9.0.0 through 9.4.8, 10.0.0 through 10.1.0, and 10.2.0 through 10.2.2 BIG-IP ASM versions 9.0.0 through 9.4.8, 10.0.0 through 10.1.0, and 10.2.0 through 10.2.2 BIG-IP Link Controller versions 9.0.0 through 9.4.8, 10.0.0 through 10.1.0, and 10.2.0 through 10.2.2

376

Landau damping effects on dust-acoustic solitary waves in a dusty negative-ion plasma  

SciTech Connect

The nonlinear theory of dust-acoustic waves (DAWs) with Landau damping is studied in an unmagnetized dusty negative-ion plasma in the extreme conditions when the free electrons are absent. The cold massive charged dusts are described by fluid equations, whereas the two-species of ions (positive and negative) are described by the kinetic Vlasov equations. A Korteweg-de Vries (KdV) equation with Landau damping, governing the dynamics of weakly nonlinear and weakly dispersive DAWs, is derived following Ott and Sudan [Phys. Fluids 12, 2388 (1969)]. It is shown that for some typical laboratory and space plasmas, the Landau damping (and the nonlinear) effects are more pronounced than the finite Debye length (dispersive) effects for which the KdV soliton theory is not applicable to DAWs in dusty pair-ion plasmas. The properties of the linear phase velocity, solitary wave amplitudes (in presence and absence of the Landau damping) as well as the Landau damping rate are studied with the effects of the positive ion to dust density ratio (?{sub pd}) as well as the ratios of positive to negative ion temperatures (?) and masses (m)

Barman, Arnab; Misra, A. P., E-mail: apmisra@visva-bharati.ac.in, E-mail: apmisra@gmail.com [Department of Mathematics, Siksha Bhavana, Visva-Bharati University, Santiniketan 731 235, West Bengal (India)

2014-07-15T23:59:59.000Z

377

The T wave in the V10 precordial electrocardiographic lead is negative in healthy Chihuahua dogs  

Science Journals Connector (OSTI)

Objectives The T wave polarity in the V10 precordial electrocardiographic (ECG) lead in Chihuahuas is described as positive in the veterinary literature. The aim of this study was to investigate the polarity of the T wave in the V10 precordial ECG lead in clinically healthy Chihuahuas. Our null hypothesis was that healthy Chihuahuas have a negative T wave in V10. Animals, materials and methods In this prospective study, 67 healthy breeder-owned Chihuahuas were used. A physical examination, 10-lead ECG and an echocardiogram were performed on each dog. Results No cardio-respiratory abnormalities were revealed in any of the otherwise healthy dogs. Three out of 67 \\{ECGs\\} were of insufficient quality because of baseline artifacts due to movement of the animal. Two other \\{ECGs\\} showed a nearly iso-electric T wave in the V10 lead. The remaining 62 \\{ECGs\\} showed negative T waves in the V10 lead. Right ventricular hypertrophy was excluded with echocardiography in all dogs. Conclusion In contrast to previous reports, we found that healthy Chihuahuas have negative T wave in the V10 precordial ECG lead.

Marieke Dijkstra; Viktor Szatmári

2009-01-01T23:59:59.000Z

378

The development of the radio frequency driven negative ion source for neutral beam injectors (invited)  

SciTech Connect

Large and powerful negative hydrogen ion sources are required for the neutral beam injection (NBI) systems of future fusion devices. Simplicity and maintenance-free operation favors RF sources, which are developed intensively at the Max-Planck-Institut fuer Plasmaphysik (IPP) since many years. The negative hydrogen ions are generated by caesium-enhanced surface conversion of atoms and positive ions on the plasma grid surface. With a small scale prototype the required high ion current density and the low fraction of co-extracted electrons at low pressure as well as stable pulses up to 1 h could be demonstrated. The modular design allows extension to large source dimensions. This has led to the decision to choose RF sources for the NBI of the international fusion reactor, ITER. As an intermediate step towards the full size ITER source at IPP, the development will be continued with a half-size source on the new ELISE testbed. This will enable to gain experience for the first time with negative hydrogen ion beams from RF sources of these dimensions.

Kraus, W.; Fantz, U.; Franzen, P.; Froeschle, M.; Heinemann, B.; Riedl, R.; Wuenderlich, D. [Max-Planck-Institut fuer Plasmaphysik, EURATOM Association, 85748 Garching (Germany)

2012-02-15T23:59:59.000Z

379

First versus subsequent return-stroke current and field peaks in negative cloud-to-ground lightning discharges  

E-Print Network (OSTI)

First versus subsequent return-stroke current and field peaks in negative cloud-to-ground lightning examine relative magnitudes of electric field peaks of first and subsequent return strokes in negative, the electric field peak of the first stroke is appreciably, 1.7 to 2.4 times, larger than the field peak

Florida, University of

380

ccsd-00002026,version1-11Nov2004 The magnetized discharge with dust: negative and positive space charge modes  

E-Print Network (OSTI)

cathode fall, and a negative space charge (NSC) mode, characterized by a broad anode fall. Features unique discharge, to a negative space charge mode (NSC) characterised by a broad anode fall. The reason cathode fall and no anode fall over the entire range of discharge parameters. Langmuir probe measure

Boyer, Edmond

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381

Early integration of vowel and pitch processing: A mismatch negativity study Pascale Lidji a,b,c,*, Pierre Jolicoeur a  

E-Print Network (OSTI)

Early integration of vowel and pitch processing: A mismatch negativity study Pascale Lidji a Keywords: MMN ERPs Pitch Vowel Phoneme Music P3a a b s t r a c t Objective: Several studies have explored of their fundamental components: pitch and phonemes. Here, we examined the additivity of the mismatch negativity (MMN

382

Organ Preservation With Daily Concurrent Chemoradiotherapy Using Superselective Intra-Arterial Infusion via a Superficial Temporal Artery for T3 and T4 Head and Neck Cancer  

SciTech Connect

Purpose: To evaluate the therapeutic results and rate of organ preservation in patients with advanced head and neck cancer treated with superselective intra-arterial chemotherapy via a superficial temporal artery and daily concurrent radiotherapy. Methods and Materials: Between April 2002 and March 2006, 30 patients with T3 or T4a squamous cell carcinoma of the head and neck underwent intra-arterial chemoradiotherapy. Treatment consisted of superselective intra-arterial infusions (docetaxel, total 60 mg/m{sup 2}; cisplatin, total 150 mg/m{sup 2}) and daily concurrent radiotherapy (total, 60 Gy) for 6 weeks. Results: The median follow-up for all patients was 46.2 months (range, 10-90 months). The median follow-up for living patients was 49.7 months (range, 36-90 months). After intra-arterial chemoradiotherapy was administered, primary site complete response was achieved in 30 (100%) of 30 cases. Seven patients (23.3%) died. Using the Kaplan-Meier method, 1-year, 3-year, and 5-year survival rates were 96.7%, 83.1%, and 70.2%, respectively, while 1-year, 3-year, and 5-year local control rates were 83.3%, 79.7%, and 73.0%, respectively. Grade 3 or 4 mucositis occurred in 20 cases (66.7%). Grade 3 toxicities included dysphagia in 20 cases (66.7%), dermatitis in 6 cases (20%), nausea/vomiting in 2 cases (6.7%), and neutropenia and thrombocytopenia in 1 case (3.3%). No osteoradionecrosis of mandible and maxillary bones developed during follow-up. Conclusions: Intra-arterial chemoradiotherapy using a superficial temporal artery provided good overall survival and local control rates. This combination chemoradiotherapy approach can preserve organs and minimize functional disturbance, thus contributing to patients' quality of life.

Mitsudo, Kenji, E-mail: mitsudo@yokohama-cu.ac.j [Department of Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine, Yokohama (Japan); Shigetomi, Toshio [Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya (Japan); Fujimoto, Yasushi [Department of Otolaryngology, Nagoya University Graduate School of Medicine, Nagoya (Japan); Nishiguchi, Hiroaki; Yamamoto, Noriyuki; Furue, Hiroki; Ueda, Minoru [Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya (Japan); Itoh, Yoshiyuki [Department of Radiology, Nagoya University Graduate School of Medicine, Nagoya (Japan); Fuwa, Nobukazu [Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, Koriyama (Japan); Tohnai, Iwai [Department of Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine, Yokohama (Japan)

2011-04-01T23:59:59.000Z

383

Negative-U centers as a basis of topological edge channels  

SciTech Connect

We present the findings of the studies of the silicon sandwich nanostructure that represents the high mobility ultranarrow silicon quantum well of the p-type (Si-QW), 2 nm, confined by the ?-barriers, 3 nm, heavily doped with boron on the n-type Si (100) surface. The ESR studies show that nanostructured ?-barriers confining the Si-QW consist predominantly of the dipole negative-U centers of boron, which are caused by the reconstruction of the shallow boron acceptors along the <111> crystallographic axis, 2B{sup 0}?B{sup +}+B{sup ?}. The electrically ordered chains of dipole negative-U centers of boron in the ?-barriers appear to give rise to the topological edge states separated vertically, because the value of the longitudinal, G{sub xx}?=?4e{sup 2}/h, and transversal, G{sub xy}?=?e{sup 2}/h, conductance measured at extremely low drain-source current indicates the exhibition of the Quantum Spin Hall effect. Besides, the Aharonov-Casher conductance oscillations and the “0.7?(2e{sup 2}/h)-feature” obtained are evidence of the interplay of the spontaneous spin polarisation and the Rashba spin-orbit interaction that is attributable to the formation of the topological edge channels. We discuss the phenomenological model of the topological edge channel which can demonstrate the ballistic, Aharonov-Chasher effect or Josephson junction behaviour in dependence on the disorder in the distribution of the negative-U dipole centers in the upper and down d-barriers.

Bagraev, Nikolay; Danilovskii, Eduard; Klyachkin, Leonid; Kudryavtsev, Andrey; Malyarenko, Anna [Ioffe Physical Technical Institute, Polytekhnicheskaya 26, 194021 St. Petersburg (Russian Federation); Gehlhoff, Wolfgang [Technische Universitaet Berlin, D-10623, Berlin (Germany); Mashkov, Vladimir [St. Petersburg State Polytechnical University, Polytekhnicheskaya 29, 195251 St. Petersburg (Russian Federation)

2014-02-21T23:59:59.000Z

384

PKC{eta} is a negative regulator of AKT inhibiting the IGF-I induced proliferation  

SciTech Connect

The PI3K-AKT pathway is frequently activated in human cancers, including breast cancer, and its activation appears to be critical for tumor maintenance. Some malignant cells are dependent on activated AKT for their survival; tumors exhibiting elevated AKT activity show sensitivity to its inhibition, providing an Achilles heel for their treatment. Here we show that the PKC{eta} isoform is a negative regulator of the AKT signaling pathway. The IGF-I induced phosphorylation on Ser473 of AKT was inhibited by the PKC{eta}-induced expression in MCF-7 breast adenocarcinoma cancer cells. This was further confirmed in shRNA PKC{eta}-knocked-down MCF-7 cells, demonstrating elevated phosphorylation on AKT Ser473. While PKC{eta} exhibited negative regulation on AKT phosphorylation it did not alter the IGF-I induced ERK phosphorylation. However, it enhanced ERK phosphorylation when stimulated by PDGF. Moreover, its effects on IGF-I/AKT and PDGF/ERK pathways were in correlation with cell proliferation. We further show that both PKC{eta} and IGF-I confer protection against UV-induced apoptosis and cell death having additive effects. Although the protective effect of IGF-I involved activation of AKT, it was not affected by PKC{eta} expression, suggesting that PKC{eta} acts through a different route to increase cell survival. Hence, our studies show that PKC{eta} provides negative control on AKT pathway leading to reduced cell proliferation, and further suggest that its presence/absence in breast cancer cells will affect cell death, which could be of therapeutic value.

Shahaf, Galit; Rotem-Dai, Noa; Koifman, Gabriela; Raveh-Amit, Hadas; Frost, Sigal A.; Livneh, Etta, E-mail: etta@bgu.ac.il

2012-04-15T23:59:59.000Z

385

Partial decay widths of negative parity baryons in the 1/N{sub c} expansion  

SciTech Connect

The partial decay widths of lowest lying negative parity baryons belonging to the 70-plet of SU(6) are analyzed in the framework of the 1/N{sub c} expansion. The channels considered are those with single pseudoscalar meson emission. The analysis is carried out to sub-leading order in 1/N{sub c} and to first order in SU(3) symmetry breaking. Conclusions about the magnitude of SU(3) breaking effects along with predictions for some unknown or poorly determined partial decay widths of known resonances are given.

Gonzalez de Urreta, E. J. [Physics Department, Centro Atomico Constituyentes, CNEA, Argentina, CONICET, Rivadavia 1917, 1033 Buenos Aires (Argentina); Scoccola, N. N. [Physics Department, Centro Atomico Constituyentes, CNEA, Argentina, CONICET, Rivadavia 1917, 1033 Buenos Aires, Argentina. and Universidad Favaloro, Solis 453, 1078 Buenos Aires (Argentina); Jayalath, C. P. [Department of Physics, Hampton University, Hampton, VA 23668 (United States); Thomas Jefferson National Accelerator Facility, Newport News, VA 23606 (United States) and Department of Physics, Peradeniya University, Peradeniya (20400) (Sri Lanka); Goity, J. L. [Department of Physics, Hampton University, Hampton, VA 23668 (United States); Thomas Jefferson National Accelerator Facility, Newport News, VA 23606 (United States)

2013-03-25T23:59:59.000Z

386

Negative parity baryon decays in the 1/N{sub c} expansion  

SciTech Connect

The partial decay widths of lowest lying negative parity baryons belonging to the 70-plet of SU(6) are analyzed in the framework of the 1/N{sub c} expansion. The channels considered are those with single pseudoscalar meson emission. The analysis is carried out to sub-leading order in 1/N{sub c} and to first order in SU(3) symmetry breaking. Conclusions about the magnitude of SU(3) breaking effects along with predictions for some unknown or poorly determined partial decay widths of known resonances are obtained.

Jayalath, C. [Department of Physics, Hampton University, Hampton, Virginia 23668 (United States); Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606 (United States); Department of Physics, Peradeniya University, Peradeniya 20400 (Sri Lanka); Goity, J. L. [Department of Physics, Hampton University, Hampton, Virginia 23668 (United States); Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606 (United States); Gonzalez de Urreta, E. [Department of Theoretical Physics, Comision Nacional de Energia Atomica, 1429 Buenos Aires (Argentina); CONICET, Rivadavia 1917, 1033 Buenos Aires (Argentina); Scoccola, N. N. [Department of Theoretical Physics, Comision Nacional de Energia Atomica, 1429 Buenos Aires (Argentina); CONICET, Rivadavia 1917, 1033 Buenos Aires (Argentina); Universidad Favaloro, Solis 453, 1078 Buenos Aires (Argentina)

2011-10-01T23:59:59.000Z

387

Stability of Negatively Charged Platelets in Calcium-Rich Anionic Copolymer Solutions  

Science Journals Connector (OSTI)

In this context, the use of anionic comb copolymers dispersants, consisting of negatively charged backbones (e.g., polyacrylic acid) with grafted neutral hydrophilic side chains (most often polyalkene oxides), has allowed the emergence of highly pumpable and self-compacting concrete with high mechanical performance, essential for construction of incredible skyscrapers. ... Flatt, R. J.; Schober, I.; Raphael, E.; Plassard, C.; Lesniewska, E.Conformation of Adsorbed Comb Copolymer Dispersants Langmuir 2009, 25, 845– 855 ... cement suspensions in the absence and presence of comb polymers comprised of a polyacrylic acid (PAA) backbone and charge-neutral, poly(ethylene oxide) (PEO) teeth. ...

Martin Turesson; André Nonat; Christophe Labbez

2014-05-21T23:59:59.000Z

388

Superluminal, subluminal, and negative velocities in free-space electromagnetic propagation  

E-Print Network (OSTI)

In this Chapter the time-domain analysis of the velocity of the electromagnetic field pulses generated by a spatially compact source in free space is presented. Recent simulations and measurements of anomalous superluminal, subluminal, and negative velocities are discussed. It is shown that such velocities are local and instantaneous in nature and do not violate either causality or special relativity. Although these effects are mainly confined to the near- and intermediate-field zones, some of them seem paradoxical and still lack adequate physical interpretation.

Budko, Neil V

2010-01-01T23:59:59.000Z

389

Optical measurement of Cs distribution in the large negative ion source  

SciTech Connect

To investigate a Cs behavior, optical diagnostic tools have been installed in the large negative ion source, an arc discharge used at large helical device neutral beam injector. A large Cs sputtering is observed during beam extraction due to the backstreaming H{sup +} ions. Distribution of Cs{sup +} light is uniform in the case of a balanced arc discharge, but large increase of Cs{sup +} light during beam extraction is observed in a nonuniform arc discharge. Controlling of the discharge uniformity is effective to reduce the local heat loading from the backstreaming H{sup +} ions at the backplate of ion source.

Ikeda, K.; Nagaoka, K.; Takeiri, Y.; Fantz, U.; Kaneko, O.; Osakabe, M.; Oka, Y.; Tsumori, K. [National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292 (Japan); Max-Planck-Institut fuer Plasmaphysik, EURATOM Association, D-85748 Garching (Germany); National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292 (Japan)

2008-02-15T23:59:59.000Z

390

Partial Decay Widths of Negative Parity Baryons in the 1/N{sub c} Expansion  

SciTech Connect

The partial decay widths of lowest lying negative parity baryons belonging to the 70-plet of SU(6) are analyzed in the framework of the 1/N{sub c} expansion. The channels considered are those with single pseudoscalar meson emission. The analysis is carried out to sub-leading order in 1/N{sub c} and to first order in SU(3) symmetry breaking. Conclusions about the magnitude of SU(3) breaking effects along with predictions for some unknown or poorly determined partial decay widths of known resonances are given.

Gonzalez de Urreta, Emiliano [CNEA, Buenos Aires; Scoccola, Norberto [CNEA, Buenos Aires; Jayalath, Chandala [JLAB, Hampton U.; Goity, Jose [JLAB, Hampton U.

2013-04-01T23:59:59.000Z

391

Effect of Occult Metastases on Survival in Node-Negative Breast Cancer  

Science Journals Connector (OSTI)

...therapy (chemotherapy, endocrine therapy, or other therapy), use or nonuse of radiation therapy, and study group was examined with the use of the Kruskal-Wallis rank-sum test. Event-free survival rates were compared between patients without occult metastasis and patients with occult metastasis by means... The authors detected isolated tumor-cell clusters in otherwise negative nodes in 16% of women with breast cancer. The 5-year estimates of survival were 94.6% among women with occult nodal spread and 95.8% among those without occult nodal spread.

Weaver D.L.; Ashikaga T.; Krag D.N.

2011-02-03T23:59:59.000Z

392

Brief Report: A Case of Severe Ebola Virus Infection Complicated by Gram-Negative Septicemia  

Science Journals Connector (OSTI)

...stool were already negative on the first day of testing (day 18). However, urine samples remained positive for EBOV RNA until day 30, and RNA extracts from sweat remained positive throughout the observation period until day 40. In addition, to test for the infectivity of the specimens in cell culture... Since December 2013, a Zaire ebolavirus (EBOV) epidemic of unprecedented scale has ravaged West Africa, with a focus on Guinea, Sierra Leone, and Liberia.1–4 The current epidemic has led to a public health emergency in the region, exacerbated by high ...

2014-10-22T23:59:59.000Z

393

Method and apparatus for efficient photodetachment and purification of negative ion beams  

DOE Patents (OSTI)

Methods and apparatus are described for efficient photodetachment and purification of negative ion beams. A method of purifying an ion beam includes: inputting the ion beam into a gas-filled multipole ion guide, the ion beam including a plurality of ions; increasing a laser-ion interaction time by collisional cooling the plurality of ions using the gas-filled multipole ion guide, the plurality of ions including at least one contaminant; and suppressing the at least one contaminant by selectively removing the at least one contaminant from the ion beam by electron photodetaching at least a portion of the at least one contaminant using a laser beam.

Beene, James R. (Oak Ridge, TN) [Oak Ridge, TN; Liu, Yuan (Knoxville, TN) [Knoxville, TN; Havener, Charles C. (Knoxville, TN) [Knoxville, TN

2008-02-26T23:59:59.000Z

394

Negative differential gain in quantum dot systems: Interplay of structural properties and many-body effects  

SciTech Connect

The saturation behaviour of optical gain with increasing excitation density is an important factor for laser device performance. For active materials based on self-organized InGaAs/GaAs quantum dots, we study the interplay between structural properties of the quantum dots and many-body effects of excited carriers in the optical properties via a combination of tight-binding and quantum-kinetic calculations. We identify regimes where either phase-space filling or excitation-induced dephasing dominates the saturation behavior of the optical gain. The latter can lead to the emergence of a negative differential material gain.

Goldmann, E., E-mail: goldmann@itp.uni-bremen.de; Jahnke, F. [Institute for Theoretical Physics, University of Bremen, Bremen 28359 (Germany); Lorke, M.; Frauenheim, T. [Bremen Center for Computational Materials Science BCCMS, University of Bremen, Bremen 28359 (Germany)

2014-06-16T23:59:59.000Z

395

W-Band Pancharatnam Half Wave Plate Based on Negative Refractive Index Metamaterials  

E-Print Network (OSTI)

Electromagnetic metamaterials, made from arrangements of subwavelength sized structures, can be used to manipulate radiation. Designing metamaterials that have a positive refractive index along one axis and a negative refractive index along the orthogonal axis can result in birefringences, $\\Delta n>1$. The effect can be used to create wave plates with subwavelength thicknesses. Previous attempts at making wave plates in this way have resulted in very narrow usable bandwidths. In this paper, we use the Pancharatnam method to increase the usable bandwidth. A combination of Finite Element Method and Transmission Line models were used to optimise the final design. Experimental results are compared to the modelled data.

Mohamed, Imran; Ng, Ming Wah

2014-01-01T23:59:59.000Z

396

Electron and Negative Ion Densities in C(2)F(6) and CHF(3) Containing Inductively Coupled Discharges  

SciTech Connect

Electron and negative ion densities have been measured in inductively coupled discharges containing C{sub 2}F{sub 6} and CHF{sub 3}. Line integrated electron density was determined using a microwave interferometer, negative ion densities were inferred using laser photodetachment spectroscopy, and electron temperature was determined using a Langmuir probe. For the range of induction powers, pressures and bias power investigated, the electron density peaked at 9 x 10{sup 12} cm{sup -2} (line-integrated) or approximately 9 x 10{sup 11} cm{sup -3}. The negative ion density peaked at approximately 1.3 x 10{sup 11} cm{sup -3}. A maximum in the negative ion density as a function of induction coil power was observed. The maximum is attributed to a power dependent change in the density of one or more of the potential negative ion precursor species since the electron temperature did not depend strongly on power. The variation of photodetachment with laser wavelength indicated that the dominant negative ion was F{sup -}. Measurement of the decay of the negative ion density in the afterglow of a pulse modulated discharge was used to determine the ion-ion recombination rate for CF{sub 4}, C{sub 2}F{sub 6} and CHF{sub 3} discharges.

HEBNER,GREGORY A.; MILLER,PAUL A.

1999-12-07T23:59:59.000Z

397

Negative ion motion in the mixtures of SF6 with CF4 and CH4-Ar  

Science Journals Connector (OSTI)

This paper deals with the measurement of the mobility of negative ions in the mixtures of SF6 with CF4 and the CH4-Ar (50:50) binary mixture with SF6 contents up to 50%. The pulsed Townsend technique was used to observe the integrated ionic avalanches over a range of the density-reduced electric field E/N for which ionization is either negligible or absent, and attachment processes are significant, leading to the formation of mostly SF6-. The E/N range of measurement was from 1 to 70 Td (1 Td=10-17 V cm2), over which the measured mobilities were found to be almost constant. The mobility of the negative ions was also measured for trace amounts of SF6 in CH4 and Ar and 1% CF4, thereby providing a good value of the mobility of SF6- in these pure gases, in order to test the measured mobilities with Blanc’s law. We have found good agreement, within quoted experimental uncertainties, between calculated and measured values.

J. de Urquijo and F. B. Yousif

2003-10-28T23:59:59.000Z

398

Extraction of low-energy negative oxygen ions for thin film formation  

SciTech Connect

Coextraction of low-energy positive and negative ions were performed using a plasma sputter-type ion source system driven by a 13.56 MHz radio frequency (rf) power. Titanium (Ti) atoms were sputtered out from a target and the sputtered neutrals were postionized in oxygen/argon (O{sub 2}/Ar) plasma prior to extraction. The negative O ions were surface-produced and self-extracted. Mass spectral analyses of the extracted ion beams revealed the dependence of the ion current on the incident rf power, induced target bias and O{sub 2}/Ar partial pressure ratio. Ti{sup +} current was found to be dependent on Ar{sup +} current and reached a saturation value with increasing O{sub 2} partial pressure while the O{sup -} current showed a peak current at around 1:9 O{sub 2}/Ar partial pressure ratio. Ti{sup +} current was several orders of magnitude higher than that of the O{sup -} current.

Vasquez, M. Jr.; Sasaki, D.; Kasuya, T.; Wada, M. [Graduate School of Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321 (Japan); Maeno, S. [Novelion Systems Co. Ltd., Kyotanabe, Kyoto 610-0332 (Japan)

2011-09-26T23:59:59.000Z

399

Arc plasma generator of atomic driver for steady-state negative ion source  

SciTech Connect

The paper reviews the results of development of steady-state arc-discharge plasma generator with directly heated LaB{sub 6} cathode. This arc-discharge plasma generator produces a plasma jet which is to be converted into an atomic one after recombination on a metallic plate. The plate is electrically biased relative to the plasma in order to control the atom energies. Such an intensive jet of hydrogen atoms can be used in negative ion sources for effective production of negative ions on a cesiated surface of plasma grid. All elements of the plasma generator have an augmented water cooling to operate in long pulse mode or in steady state. The thermo-mechanical stresses and deformations of the most critical elements of the plasma generator were determined by simulations. Magnetic field inside the discharge chamber was optimized to reduce the local power loads. The first tests of the steady-state arc plasma generator prototype have performed in long-pulse mode.

Ivanov, A. A.; Belchenko, Yu. I.; Davydenko, V. I. [Budker Institute of Nuclear Physics, Novosibirsk (Russian Federation) [Budker Institute of Nuclear Physics, Novosibirsk (Russian Federation); Novosibirsk State University, Novosibirsk (Russian Federation); Ivanov, I. A.; Kolmogorov, V. V.; Listopad, A. A., E-mail: a.a.listopad@inp.nsk.su; Mishagin, V. V.; Shulzhenko, G. I. [Budker Institute of Nuclear Physics, Novosibirsk (Russian Federation)] [Budker Institute of Nuclear Physics, Novosibirsk (Russian Federation); Putvinsky, S. V.; Smirnov, A. [Tri Alpha Energy Inc., Rancho Santa Margarita, California 92688 (United States)] [Tri Alpha Energy Inc., Rancho Santa Margarita, California 92688 (United States)

2014-02-15T23:59:59.000Z

400

A rapid compression machine study of the oxidation of propane in the negative temperature coefficient regime  

SciTech Connect

The oxidation of propane has been studied in the temperature range 680-970 K at compressed gas pressures of 21, 27, and 37 atm and at varying equivalence ratios of 0.5, 1.0, and 2.0. These data are consistent with other experiments presented in the literature for alkane fuels in that, when ignition delay times are plotted as a function of temperature, a characteristic negative coefficient behavior is observed. In addition, these data were simulated using a detailed chemical kinetic model. It was found that qualitatively the model correctly simulated the effect of change in equivalence ratio and pressure, predicting that fuel-rich, high-pressure mixtures ignite fastest, while fuel-lean, low-pressure mixtures ignite slowest. Moreover, reactivity as a function of temperature is well captured, with the model predicting negative temperature coefficient behavior similar to the experiments. Quantitatively the model is faster than experiment for all mixtures at the lowest temperatures (650-750 K) and is also faster than experiment throughout the entire temperature range for fuel-lean mixtures. (author)

Gallagher, S.M.; Curran, H.J.; Metcalfe, W.K.; Healy, D.; Simmie, J.M. [Combustion Chemistry Centre, National University of Ireland, Galway (Ireland); Bourque, G. [Rolls-Royce Canada, Montreal (Canada)

2008-04-15T23:59:59.000Z

Note: This page contains sample records for the topic "negative daily imbalances" 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.
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401

First-principles study on negative thermal expansion of PbTiO{sub 3}  

SciTech Connect

It is well known that perovskite-type PbTiO{sub 3} behaves negative thermal expansion in a wide temperature range from room temperature to Curie temperature (763?K). The present study reports the first-principles study of the anisotropic thermal expansion of PbTiO{sub 3}, in the framework of the density-functional theory and the density-functional perturbation theory. The curve of temperature dependence of the unit cell volume is presented from 20 to 520?K through the calculation of the minimum of total free energy at each temperature point. The negative thermal expansion of PbTiO{sub 3} is calculated without empirical parameters. Furthermore, the distinctive thermodynamic act of PbTiO{sub 3} from expanding to contracting at tetragonal phase is reproduced. The ab-initio calculations reveal that this unique appearance depends on the phonon vibration. The dynamical contributions of various atoms are also calculated to account for the disparate role of Pb-O and Ti-O bond.

Wang, Fangfang; Chen, Jun; Xing, Xianran, E-mail: xing@ustb.edu.cn [Department of Physical Chemistry, University of Science and Technology Beijing, Beijing 100083 (China)] [Department of Physical Chemistry, University of Science and Technology Beijing, Beijing 100083 (China); Xie, Ying; Fu, Honggang [Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080 (China)] [Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080 (China)

2013-11-25T23:59:59.000Z

402

Cell signaling systems that contain positive-feedback loops or double-negative feedback loops can, in principle, convert  

E-Print Network (OSTI)

. These circuits were originally envisioned as ways of achieving self-sustaining patterns of gene expression, but it is easy to see how double-negative feedback at a post-translational level could produce self-sustaining

403

Daily Texan October 31, 2013  

E-Print Network (OSTI)

inside of the building by identifying the places to install the air barrier to seal," Guzman said. "These in the brick where air-conditioned air was escaping from the building. Tony Guzman, project manager from Project Management and Construction Services, said the discovery of the leaked air was unexpected

Johnston, Daniel

404

Procyanidin dimer B2-mediated IRAK-M induction negatively regulates TLR4 signaling in macrophages  

SciTech Connect

Highlights: •Pro B2 elevated the expression of IRAK-M, a negative regulator of TLR signaling. •LPS-induced expression of cell surface molecules was inhibited by Pro B2. •LPS-induced production of pro-inflammatory cytokines was inhibited by Pro B2. •Pro B2 inhibited LPS-induced activation of MAPKs and NF-?B through IRAK-M. •Pro B2 inactivated naïve T cells by inhibiting LPS-induced cytokines via IRAK-M. -- Abstract: Polyphenolic compounds have been found to possess a wide range of physiological activities that may contribute to their beneficial effects against inflammation-related diseases; however, the molecular mechanisms underlying this anti-inflammatory activity are not completely characterized, and many features remain to be elucidated. In this study, we investigated the molecular basis for the down-regulation of toll-like receptor 4 (TLR4) signal transduction by procyanidin dimer B2 (Pro B2) in macrophages. Pro B2 markedly elevated the expression of the interleukin (IL)-1 receptor-associated kinase (IRAK)-M protein, a negative regulator of TLR signaling. Lipopolysaccharide (LPS)-induced expression of cell surface molecules (CD80, CD86, and MHC class I/II) and production of pro-inflammatory cytokines (tumor necrosis factor-?, IL-1?, IL-6, and IL-12p70) were inhibited by Pro B2, and this action was prevented by IRAK-M silencing. In addition, Pro B2-treated macrophages inhibited LPS-induced activation of mitogen-activated protein kinases such as extracellular signal-regulated kinase 1/2, p38, and c-Jun N-terminal kinase and the translocation of nuclear factor ?B and p65 through IRAK-M. We also found that Pro B2-treated macrophages inactivated naïve T cells by inhibiting LPS-induced interferon-? and IL-2 secretion through IRAK-M. These novel findings provide new insights into the understanding of negative regulatory mechanisms of the TLR4 signaling pathway and the immune-pharmacological role of Pro B2 in the immune response against the development and progression of many chronic diseases.

Sung, Nak-Yun [Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 580-185 (Korea, Republic of)] [Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 580-185 (Korea, Republic of); Yang, Mi-So [Department of Microbiology, Infection Signaling Network Research Center, College of Medicine, Chungnam National University, Daejeon (Korea, Republic of)] [Department of Microbiology, Infection Signaling Network Research Center, College of Medicine, Chungnam National University, Daejeon (Korea, Republic of); Song, Du-Sub [Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 580-185 (Korea, Republic of) [Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 580-185 (Korea, Republic of); School of life sciences and Biotechnology, Korea University 5-ka, Anam-Dong, Sungbuk-ku, Seoul 136-701 (Korea, Republic of); Kim, Jae-Kyung; Park, Jong-Heum; Song, Beom-Seok; Park, Sang-Hyun; Lee, Ju-Woon [Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 580-185 (Korea, Republic of)] [Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 580-185 (Korea, Republic of); Park, Hyun-Jin [School of life sciences and Biotechnology, Korea University 5-ka, Anam-Dong, Sungbuk-ku, Seoul 136-701 (Korea, Republic of)] [School of life sciences and Biotechnology, Korea University 5-ka, Anam-Dong, Sungbuk-ku, Seoul 136-701 (Korea, Republic of); Kim, Jae-Hun [Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 580-185 (Korea, Republic of)] [Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 580-185 (Korea, Republic of); Byun, Eui-Baek, E-mail: ebbyun80@kaeri.re.kr [Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 580-185 (Korea, Republic of)] [Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 580-185 (Korea, Republic of); Byun, Eui-Hong, E-mail: ehbyun80@kongju.ac.k [Department of Food Science and Technology, Kongju National University, Yesan 340-800 (Korea, Republic of)] [Department of Food Science and Technology, Kongju National University, Yesan 340-800 (Korea, Republic of)

2013-08-16T23:59:59.000Z

405

Observations and Modeling of Long Negative Laboratory Discharges: Identifying the Physics Important to an Electrical Spark in Air  

SciTech Connect

There are relatively few reports in the literature focusing on negative laboratory leaders. Most of the reports focus exclusively on the simpler positive laboratory leader that is more commonly encountered in high voltage engineering [Gorin et al., 1976; Les Renardieres Group, 1977; Gallimberti, 1979; Domens et al., 1994; Bazelyan and Raizer 1998]. The physics of the long, negative leader and its positive counterpart are similar; the two differ primarily in their extension mechanisms [Bazelyan and Raizer, 1998]. Long negative sparks extend primarily by an intermittent process termed a 'step' that requires the development of secondary leader channels separated in space from the primary leader channel. Long positive sparks typically extend continuously, although, under proper conditions, their extension can be temporarily halted and begun again, and this is sometimes viewed as a stepping process. However, it is emphasized that the nature of positive leader stepping is not like that of negative leader stepping. There are several key observational studies of the propagation of long, negative-polarity laboratory sparks in air that have aided in the understanding of the stepping mechanisms exhibited by such sparks [e.g., Gorin et al., 1976; Les Renardieres Group, 1981; Ortega et al., 1994; Reess et al., 1995; Bazelyan and Raizer, 1998; Gallimberti et al., 2002]. These reports are reviewed below in Section 2, with emphasis placed on the stepping mechanism (the space stem, pilot, and space leader). Then, in Section 3, reports pertaining to modeling of long negative leaders are summarized.

Biagi, C J; Uman, M A

2011-12-13T23:59:59.000Z

406

Negative differential resistance behavior in phosphorus-doped armchair graphene nanoribbon junctions  

SciTech Connect

In this present work, we investigate the electronic transport properties of phosphorus-doped armchair graphene nanoribbon (AGNR) junctions by employing nonequilibrium Green's functions in combination with the density-function theory. Two phosphorus (P) atoms are considered to substitute the central carbon atom with the different width of AGNRs. The results indicate that the electronic transport behaviors are strongly dependent on the width of the P-doped graphene nanoribbons. The current-voltage characteristics of the doped AGNR junctions reveal an interesting negative differential resistance (NDR) and exhibit three distinct family (3 n, 3 n + 1, 3 n + 2) behaviors. These results display that P doping is a very good way to achieve NDR of the graphene nanoribbon devices.

Zhou, Yuhong [School of Optical and Electronic Information, Huazhong University of Science and Technology, No. 1037 Luoyu Road, Hongshan District, Wuhan City, Hubei Province 430074 (China); Wenhua College, Huzhong University of Science and Technology, Wuhan City, Hubei Province 430074 (China); Zhang, Daoli, E-mail: zhang-daoli@hust.edu.cn; Zhang, Jianbing; Miao, Xiangshui [School of Optical and Electronic Information, Huazhong University of Science and Technology, No. 1037 Luoyu Road, Hongshan District, Wuhan City, Hubei Province 430074 (China); Wuhan National Laboratory for Optoelectronics, 1037 Luoyu Road, Hongshan District, Wuhan City, Hubei Province 430074 (China); Ye, Cong [Faculty of Physics and Electronic Technology, Hubei University, Wuhan 430062 (China)

2014-02-21T23:59:59.000Z

407

Spatial distribution of the plasma parameters in a radio-frequency driven negative ion sourcea)  

Science Journals Connector (OSTI)

Results from initial stage of modeling of the SPIDER source of negative hydrogen/deuterium ions currently under development in Consorzio RFX (Padova) regarding ITER are presented. A 2D model developed within the fluid plasma theory for low-pressure discharges (free-fall regime maintenance) is applied to the gas-discharge conditions planned and required for the SPIDER source: gas pressure of 0.3 Pa and radio-frequency (rf) power of 100 kW absorbed in a single driver. The results are for the spatial distribution of the plasma characteristics (charged particle densities electron temperature and electron energy flux plasma potential and dc electric field) with conclusions for the role of the electron energy flux in the formation of the discharge structure.

D. Todorov; Kh. Tarnev; Ts. Paunska; St. Lishev; A. Shivarova

2014-01-01T23:59:59.000Z

408

Surface Tension and Negative Pressure Interior of a Non-Singular `Black Hole'  

E-Print Network (OSTI)

The constant density interior Schwarzschild solution for a static, spherically symmetric collapsed star has a divergent pressure when its radius $R\\le\\frac{9}{8}R_s=\\frac{9}{4}GM$. We show that this divergence is integrable, and induces a non-isotropic transverse stress with a finite redshifted surface tension on a spherical surface of radius $R_0=3R\\sqrt{1-\\frac{8}{9}\\frac{R}{R_s}}$. For $r surface is localized at the Schwarzschild radius itself, $R_0=R_s$, and the solution has constant negative pressure $p =-\\bar\\rho$ everywhere in the interior $rsurface tension of the condensate star surface is given by $\\tau_s=\\Delta\\kappa/8\\pi G$, where $\\Delta\\kappa=\\kappa_+-\\kappa_-=2\\kappa_+=1/R_s$ is the difference of equal and opposite surface grav...

Mazur, Pawel O

2015-01-01T23:59:59.000Z

409

Negative Quasi-Probability Representation is a Necessary Resource for Magic State Distillation  

E-Print Network (OSTI)

The magic state model of quantum computation gives a recipe for universal quantum computation using perfect Clifford operations and repeat preparations of a noisy ancilla state. It is an open problem to determine which ancilla states enable universal quantum computation in this model. Here we show that for systems of odd dimension a necessary condition for a state to enable universal quantum computation is that it have negative representation in a particular quasi-probability representation which is a discrete analogue to the Wigner function. This condition implies the existence of a large class of bound states for magic state distillation: states which cannot be prepared using Clifford operations but do not enable universal quantum computation. This condition also enables an efficient experimental test for distillability.

Veitch, Victor; Emerson, Joseph

2012-01-01T23:59:59.000Z

410

Zero field line in the magnetic spectra of negatively charged nitrogen-vacancy centers in diamond  

E-Print Network (OSTI)

The dependence of the luminescence of diamonds with negatively charged nitrogen-vacancy centers (NV-) vs. applied magnetic field (magnetic spectrum) was studied. A narrow line in zero magnetic field was discovered. The properties of this line are considerably different from those of other narrow magnetic spectrum lines. Its magnitude is weakly dependent of the orientation of the single-crystal sample to the external magnetic field. This line is also observed in a powdered sample. The shape of the line changes greatly when excitation light polarization is varied. The magnitude of the line has a non-linear relation to excitation light intensity. For low intensities this dependence is close to a square law. To explain the mechanism giving rise to this line in the magnetic spectrum, we suggest a model based on the dipole-dipole interaction between different NV- centers.

S. V. Anishchik; V. G. Vins; A. P. Yelisseyev; N. N. Lukzen; N. L. Lavrik; V. A. Bagryansky

2014-07-02T23:59:59.000Z

411

Negative hydrogen ion beam extracted from a Bernas-type ion source  

SciTech Connect

Negative hydrogen (H{sup -}) ion beam was produced without cesium seeding by a Bernas-type ion source with a coaxial hot cathode. The amount of H{sup -} ion beam current extracted from an original Bernas-type ion source using a hairpin shape filament as a hot cathode was 1 {mu}A with the 0.4 A arc current, while that 300 eV beam energy. In the other hand, H{sup -} ion beam current using the Bernas-type ion source with a coaxial hot cathode reached 4 {mu}A under the same condition. Production efficiency was enhanced by the focused plasma produced by a coaxial hot cathode.

Miyamoto, N.; Wada, M. [Graduate School of Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321 (Japan)

2011-09-26T23:59:59.000Z

412

Ways to improve the efficiency and reliability of radio frequency driven negative ion sources for fusion  

SciTech Connect

Large RF driven negative hydrogen ion sources are being developed at IPP Garching for the future neutral beam injection system of ITER. The overall power efficiency of these sources is low, because for the RF power supply self-excited generators are utilized and the plasma is generated in small cylindrical sources (“drivers”) and expands into the source main volume. At IPP experiments to reduce the primary power and the RF power required for the plasma production are performed in two ways: The oscillator generator of the prototype source has been replaced by a transistorized RF transmitter and two alternative driver concepts, a spiral coil, in which the field is concentrated by ferrites, which omits the losses by plasma expansion and a helicon source are being tested.

Kraus, W., E-mail: kraus@ipp.mpg.de [Max-Planck-Institut für Plasmaphysik (IPP), Boltzmannstr. 2, 85748 Garching (Germany); Briefi, S.; Fantz, U. [Max-Planck-Institut für Plasmaphysik (IPP), Boltzmannstr. 2, 85748 Garching (Germany) [Max-Planck-Institut für Plasmaphysik (IPP), Boltzmannstr. 2, 85748 Garching (Germany); AG Experimentelle Plasmaphysik, Universität Augsburg, 86135 Augsburg (Germany); Gutmann, P.; Doerfler, J. [AG Experimentelle Plasmaphysik, Universität Augsburg, 86135 Augsburg (Germany)] [AG Experimentelle Plasmaphysik, Universität Augsburg, 86135 Augsburg (Germany)

2014-02-15T23:59:59.000Z

413

Spontaneous Lorentz violation, negative energy, and the second law of thermodynamics  

Science Journals Connector (OSTI)

We reconsider the possibility of violating the generalized second law of thermodynamics in theories with spontaneous Lorentz violation. It has been proposed that this may be accomplished in particular with a black hole immersed in a ghost condensate background, which may be taken to break Lorentz invariance without appreciably distorting the space-time geometry. In this paper we show that there in fact exist solutions explicitly describing the flow of negative energy into these black holes, allowing for violation of the second law in a very simple way. This second law violation is independent of any additional assumptions such as couplings of the ghost condensate to secondary fields, and suggests that violation of the null energy condition may be the true source of pathology in these theories.

Brian Feldstein

2009-08-21T23:59:59.000Z

414

Spontaneous Lorentz violation, negative energy, and the second law of thermodynamics  

SciTech Connect

We reconsider the possibility of violating the generalized second law of thermodynamics in theories with spontaneous Lorentz violation. It has been proposed that this may be accomplished in particular with a black hole immersed in a ghost condensate background, which may be taken to break Lorentz invariance without appreciably distorting the space-time geometry. In this paper we show that there in fact exist solutions explicitly describing the flow of negative energy into these black holes, allowing for violation of the second law in a very simple way. This second law violation is independent of any additional assumptions such as couplings of the ghost condensate to secondary fields, and suggests that violation of the null energy condition may be the true source of pathology in these theories.

Feldstein, Brian [Department of Physics, Boston University, Boston, Massachusetts, 02215 (United States)

2009-08-15T23:59:59.000Z

415

Spontaneous Lorentz Violation, Negative Energy and the Second Law of Thermodynamics  

E-Print Network (OSTI)

We reconsider the possibility of violating the generalized second law of thermodynamics in theories with spontaneous Lorentz violation. It has been proposed that this may be accomplished in particular with a black hole immersed in a ghost condensate background, which may be taken to break Lorentz invariance without appreciably distorting the space-time geometry. In this paper we show that there in fact exist solutions explicitly describing flow of negative energy into these black holes, allowing for violation of the second law in a very simple way. This second law violation is independent of any additional assumptions such as couplings of the ghost condensate to secondary fields, and suggests that violation of the null energy condition may be the true source of pathology in these theories.

Brian Feldstein

2009-04-07T23:59:59.000Z

416

A Hamiltonian Model of Dissipative Wave-particle Interactions and the Negative-mass Effect  

SciTech Connect

The effect of radiation friction is included in the Hamiltonian treatment of wave-particle interactions with autoresonant phase-locking, yielding a generalized canonical approach to the problem of dissipative dynamics near a nonlinear resonance. As an example, the negativemass eff ect exhibited by a charged particle in a pump wave and a static magnetic field is studied in the presence of the friction force due to cyclotron radiation. Particles with negative parallel masses m! are shown to transfer their kinetic energy to the pump wave, thus amplifying it. Counterintuitively, such particles also undergo stable dynamics, decreasing their transverse energy monotonically due to cyclotron cooling, whereas some of those with positive m! undergo cyclotron heating instead, extracting energy from the pump wave.

A. Zhmoginov

2011-02-07T23:59:59.000Z

417

Negative Differential Electrolyte Resistance in a Solid-State Nanopore Resulting from Electroosmotic Flow Bistability  

Science Journals Connector (OSTI)

negative differential resistance; nanopore; sensor; finite element simulation; electrical feedback and bistability ... The Nernst–Planck equation governing the diffusional, migrational, and convective fluxes of K+ and Cl–, the Navier–Stokes equation for low-Reynolds number flow engendered by the external pressure and electroosmosis, and Poisson’s equation relating the ion distributions to the local electric field were simultaneously solved to obtain local values of the fluid velocity, ion concentrations, electric potential, and ion fluxes. ... (39)In eq 1, ?d is the diffuse layer potential near the charged surface, c0 is the bulk concentration of a symmetric monovalent electrolyte, e is the absolute value of elementary charge (?1.60 × 10–19 C), R is the gas constant, ? is the solution permittivity, T is the absolute temperature of 298 K, and kB is the Boltzmann constant. ...

Long Luo; Deric A. Holden; Henry S. White

2014-02-27T23:59:59.000Z

418

A triggered lightning flash containing both negative and positive J. Jerauld, M. A. Uman, V. A. Rakov, K. J. Rambo, and D. M. Jordan  

E-Print Network (OSTI)

A triggered lightning flash containing both negative and positive strokes J. Jerauld, M. A. Uman, V, and D. M. Jordan (2004), A triggered lightning flash containing both negative and positive strokes and magnetic fields for a rocket-triggered two-stroke flash. The first stroke lowered negative charge to ground

Florida, University of

419

Klein, L.C., Bennett, J.M., Whetzel, C.A., & Ritter, F.E. (2008). Daily caffeine use impacts neuroendocrine and cardiovascular responses to laboratory stress in healthy  

E-Print Network (OSTI)

-reported daily caffeine use significantly predicted baseline heart rate and salivary alpha amylase, a surrogate.e., cortisol, DHEA-S, alpha amylase) but not cardiovascular (i.e., blood pressure, heart rate) responses and 15-min after the stressor to determine cortisol, dehydroepiandrosterone-sulfate (DHEA-S), and alpha

Ritter, Frank

420

Infrastructure systems, such as buildings, schools, roads, bridges, water lines, sewage systems, communication systems, and power plants, are a fundamental part of daily life. Both rapid and gradual climate changes can affect  

E-Print Network (OSTI)

and gradual climate changes can affect these systems and have significant impacts on society. Extreme weather infrastructure sector make practical decisions in order to adapt to climate changes and variations systems, communication systems, and power plants, are a fundamental part of daily life. Both rapid

Note: This page contains sample records for the topic "negative daily imbalances" 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

Advanced chemistry-transport modeling and observing systems allow daily air quality observations, short-term forecasts, and real-time analyses of air quality at the global and  

E-Print Network (OSTI)

Advanced chemistry-transport modeling and observing systems allow daily air quality observations, short-term forecasts, and real-time analyses of air quality at the global and European scales control measures that could be taken for managing such episodes, European-scale air quality forecasting

Paris-Sud XI, Université de

422

03/01/2006 09:51 AMLoading "People's Daily Online --Chinese experimental thermonuclear reactor on discharge test in July" Page 1 of 1http://english.people.com.cn/200603/01/print20060301_247035.html  

E-Print Network (OSTI)

03/01/2006 09:51 AMLoading "People's Daily Online -- Chinese experimental thermonuclear reactor experimental thermonuclear reactor on discharge test in July China's new generation experimental Tokamak fusion and the former Soviet Union launched a 10 billion- euro ambitious plan, the International Thermonuclear

423

Negative-U property of the DX center in AlxGa1-xAs:Si  

Science Journals Connector (OSTI)

We present two major points in this paper: (1) Statistics derived from the negative-U property of the DX center are not consistent with existing Hall experiments of Si-doped AlxGa1-xAs. (2) The discrepancy between the negative-U model and Hall experiments can be improved if there exist two different donors SD and DX with comparable concentrations NSD and NDX, NSD/NDX increases with increasing NSi. DX is a negative-U center binding two electrons and SD is a shallow donor. SD centers provide electrons and the electrons are captured by DX centers, and therefore the Fermi energy is no longer pinned to the DX energy level. Many experiments are reinterpreted in this view.

M. F. Li; Y. B. Jia; P. Y. Yu; J. Zhou; J. L. Gao

1989-07-15T23:59:59.000Z

424

Negative regulation of parathyroid hormone-related protein expression by steroid hormones  

SciTech Connect

Highlights: {yields} Steroid hormones repress expression of PTHrP in the cell lines where the corresponding nuclear receptors are expressed. {yields} Nuclear receptors are required for suppression of PTHrP expression by steroid hormones, except for androgen receptor. {yields} Androgen-induced suppression of PTHrP expression appears to be mediated by estrogen receptor. -- Abstract: Elevated parathyroid hormone-related protein (PTHrP) is responsible for humoral hypercalcemia of malignancy (HHM), which is of clinical significance in treatment of terminal patients with malignancies. Steroid hormones were known to cause suppression of PTHrP expression. However, detailed studies linking multiple steroid hormones to PTHrP expression are lacking. Here we studied PTHrP expression in response to steroid hormones in four cell lines with excessive PTHrP production. Our study established that steroid hormones negatively regulate PTHrP expression. Vitamin D receptor, estrogen receptor {alpha}, glucocorticoid receptor, and progesterone receptor, were required for repression of PTHrP expression by the cognate ligands. A notable exception was the androgen receptor, which was dispensable for suppression of PTHrP expression in androgen-treated cells. We propose a pathway(s) involving nuclear receptors to suppress PTHrP expression.

Kajitani, Takashi; Tamamori-Adachi, Mimi [Department of Biochemistry, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605 (Japan)] [Department of Biochemistry, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605 (Japan); Okinaga, Hiroko [Department of Internal Medicine, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605 (Japan)] [Department of Internal Medicine, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605 (Japan); Chikamori, Minoru; Iizuka, Masayoshi [Department of Biochemistry, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605 (Japan)] [Department of Biochemistry, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605 (Japan); Okazaki, Tomoki, E-mail: okbgeni@med.teikyo-u.ac.jp [Department of Biochemistry, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605 (Japan)] [Department of Biochemistry, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605 (Japan)

2011-04-15T23:59:59.000Z

425

Negative differential resistance devices by using N-doped graphene nanoribbons  

SciTech Connect

Recently, extensive efforts have been devoted to the investigations of negative differential resistance (NDR) behavior in graphene. Here, by performing fully self-consistent density functional theory calculations combined with non-equilibrium Green's function technique, we investigate the transport properties of three molecules from conjugated molecule, one-dimension alkane chain, and single molecule magnet, which are sandwiched between two N-doped zigzag and armchair graphene nanoribbons (GNRs). We observe robust NDR effect in all examined molecular junctions including benzene, alkane, and planar four-coordinated Fe complex. Through the analyses of the calculated electronic structures and the bias-dependent transmission coefficients, we find that the narrow density of states of N-doped GNRs and the bias-dependent effective coupling between the discrete frontier molecular orbitals and the subbands of N-doped GNRs are responsible for the observed NDR phenomenon. These theoretical findings imply that N-doped GNRs hold great potential for building NDR devices based on various molecules.

Huang, Jing, E-mail: jhuang@ustc.edu.cn, E-mail: liqun@ustc.edu.cn [School of Materials and Chemical Engineering, Anhui Jianzhu University, Hefei, Anhui 230601 (China) [School of Materials and Chemical Engineering, Anhui Jianzhu University, Hefei, Anhui 230601 (China); Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026 (China); Wang, Weiyi; Li, Qunxiang, E-mail: jhuang@ustc.edu.cn, E-mail: liqun@ustc.edu.cn [Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026 (China)] [Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026 (China); Yang, Jinlong [Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026 (China) [Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026 (China); Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China)

2014-04-28T23:59:59.000Z

426

Robust video identification approach based on local non-negative matrix factorization  

Science Journals Connector (OSTI)

Abstract With the popularization of media-capture devices and the development of the Internet's basic facilities, video has become the most popular media information in recent years. The massive capacity of video imposes the demand of automatic video identification techniques which are very important to various applications such as content based video retrieval and copy detection. Therefore, as a challenging problem, video identification has drawn more and more attention in the past decade. The problem addressed here is to identify a given video clip in a given set of video sequences. In this paper, a robust video identification algorithm based on local non-negative matrix factorization (LNMF) is presented. First, some concepts about LNMF are described and the way of finding the factorized matrix is given. Then, its convergence is proven. In addition, a LNMF based shot detection method is proposed for constructing a video identification framework completely based on LNMF. Finally, a LNMF based identification approach using Hausdorff distance is introduced and a two-stage search process is proposed. Experimental results show the robustness of the proposed approach to many kinds of content-preserved distortions and its superiority to other algorithms.

Zhe-Ming Lu; Bo Li; Qing-Ge Ji; Zhi-Feng Tan; Yong Zhang

2015-01-01T23:59:59.000Z

427

Global Failure Criteria for Positive/Electrolyte/Negative Structure of Planar Solid Oxide Fuel Cell  

SciTech Connect

Due to mismatch of the coefficients of thermal expansion of various layers in the positive/electrolyte/negative (PEN) structures of solid oxide fuel cells (SOFC), thermal stresses and warpage on the PEN are unavoidable due to the temperature changes from the stress-free sintering temperature to room temperature during the PEN manufacturing process. In the meantime, additional mechanical stresses will also be created by mechanical flattening during the stack assembly process. In order to ensure the structural integrity of the cell and stack of SOFC, it is necessary to develop failure criteria for SOFC PEN structures based on the initial flaws occurred during cell sintering and stack assembly. In this paper, the global relationship between the critical energy release rate and critical curvature and maximum displacement of the warped cells caused by the temperature changes as well as mechanical flattening process is established so that possible failure of SOFC PEN structures may be predicted deterministically by the measurement of the curvature and displacement of the warped cells.

Liu, Wenning N.; Sun, Xin; Khaleel, Mohammad A.; Qu, Jianmin

2009-07-15T23:59:59.000Z

428

Photoelectron track length distributions measured in a negative ion time projection chamber  

E-Print Network (OSTI)

We report photoelectron track length distributions between 3 and 8 keV in gas mixtures of Ne+CO2+CH3NO2 (260:80:10 Torr) and CO2+CH3NO2 (197.5: 15 Torr). The measurements were made using a negative ion time projection chamber (NITPC) at the National Synchrotron Light Source (NSLS) at the Brookhaven National Laboratory (BNL). We report the first quantitative analysis of photoelectron track length distributions in a gas. The distribution of track lengths at a given energy is best fit by a lognormal distribution. A powerlaw distribution of the form, f(E)=a(E/Eo)n, is found to fit the relationship between mean track length and energy. We find n=1.29 +/- 0.07 for Ne+CO2+CH3NO2 and n=1.20 +/- 0.09 for CO2+CH3NO2. Understanding the distribution of photoelectron track lengths in proportional counter gases is important for optimizing the pixel size and the dimensions of the active region in electron-drift time projection chambers (TPCs) and NITPC X-ray polarimeters.

Prieskorn, Z R; Kaaret, P E; Black, J K

2014-01-01T23:59:59.000Z

429

Specific features of the behaviour of targets under negative pressures created by a picosecond laser pulse  

SciTech Connect

New experimental data are obtained concerning the character of spallation and the mechanical strength of targets made of aluminium, aluminium - magnesium alloy (AMg6M), polymethylmethacrylate (PMMA, plexiglass), tantalum, copper, tungsten, palladium, silicon, and lead under the impact of laser radiation with the duration 70 ps. The specific features of the spallation phenomenon, in which the separation of a part of the target substance occurs at the back surface as a result of the effect of negative pressures (tensile stresses) in the substance, are experimentally studied. To determine the time moment of spallation, the electrocontact method of measuring the velocity of the spalled layer is developed and implemented. The obtained results show that the values of spall strength of the studied materials at moderate amplitudes of the shock-wave effect agree with the known literature data, while at higher pressures the growth of spall strength is observed, which is an evidence of the material hardening. The results of the studies demonstrate that the dynamic strength of a substance depends on both the duration and the amplitude of the shock-wave impact on the target. (extreme light fields and their applications)

Abrosimov, S A; Bazhulin, A P; Voronov, Valerii V; Geras'kin, A A; Krasyuk, Igor K; Pashinin, Pavel P; Semenov, Andrei Yu; Stuchebryukhov, I A; Khishchenko, K V; Fortov, Vladimir E

2013-03-31T23:59:59.000Z

430

Engineering study on TiSnSb-based composite negative electrode for Li-ion batteries  

Science Journals Connector (OSTI)

Abstract Micrometric TiSnSb is a promising negative electrode material for Li-ion batteries when formulated with carboxymethyl cellulose (CMC) binder and a mixture of carbon black and carbon nanofibers, and cycled in a fluoroethylene carbonate (FEC)-containing electrolyte. Here, other binder systems were evaluated, polyacrylic acid (PAAH) mixed with CMC, CMC in buffered solution at pH 3 and amylopectin. However CMC showed the better performance in terms of cycle life of the electrode. Whatever the binder, cycle life decreases with increasing the active mass loading, which is attributed to both the precipitation of liquid electrolyte degradation products and to the loss of electrical contacts within the composite electrode and with the current collector as a consequence of the active particles volume variations. Furthermore, calendaring the electrode unfortunately decreases the cycle life. The rate performance was studied as a function of the active mass loading and was shown to be determined by the electrode polarization resistance. Finally, full cells cycling tests with Li1Ni1/3Co1/3Mn1/3O2 at the positive electrode were done. 60% of the capacity is retained after 200 cycles at the surface capacity of 2.7 mAh cm?2.

H.A. Wilhelm; C. Marino; A. Darwiche; P. Soudan; M. Morcrette; L. Monconduit; B. Lestriez

2015-01-01T23:59:59.000Z

431

Mixing effect of metal oxides on negative electrode reactions in the nickel-hydride battery  

SciTech Connect

Negative electrodes for use in nickel-hydride batteries were prepared from MmNi[sub 3.6]Mn[sub 0.4]Al[sub 0.3]Co[sub 0.7] (Mm = misch metal with the composition of 24.87% La, 52.56% Ce, 5.57% Pr, 16.86% Nd, and 0.14% Sm) alloy being mixed with RuO[sub 2] or Co[sub 3]O[sub 4] powder. Then the hydrogen evolution reactions at the electrodes were investigated by measuring the potential decay immediately after the interruption of an applied cathodic current. The reactions were found to proceed by the Volmer-Tafel mechanism. The total overvoltage ([eta]) was divided into two components ([eta][sub 1] and [eta][sub 2]) corresponding to the Tafel and Volmer reactions. The exchange current densities of the elementary reactions, i[sub 0V] and i[sub 0T], were then evaluated by extrapolating the Tafel lines for [eta][sub 1] and [eta][sub 2]. The Volmer reaction is much more accelerated by surface modification with RuO[sub 2] or Co[sub 3]O[sub 4] powder than the Tafel reaction, which results in the enrichment of adsorbed hydrogen, leading to higher charging efficiency.

Iwakura, Chiaki; Matsuoka, Masao; Kohno, Tatsuoki (Univ. of Osaka Prefecture (Japan). Dept. of Applied Chemistry)

1994-09-01T23:59:59.000Z

432

Computing for the future of the planet  

Science Journals Connector (OSTI)

...building types and energy use might provide...need to collect consumption data from 25 million homes and 33 million...4. Personal energy meters Huge imbalances...globally sustainable average footprint (figure...individual's daily consumption (direct and...

2008-01-01T23:59:59.000Z

433

Suppression in the negative bias illumination instability of Zn-Sn-O transistor using oxygen plasma treatment  

SciTech Connect

This study examined the effect of oxygen plasma treatment on light-enhanced bias instability in Zn-Sn-O (ZTO) thin film transistors (TFTs). The treated ZTO TFT exhibited only a threshold voltage (V{sub th}) shift of -2.05 V under negative bias illumination stress (NBIS) conditions, whereas the pristine device suffered from a negative V{sub th} shift of 3.76 V under identical conditions. X-ray photoelectron spectroscopic analysis revealed that the oxygen vacancy defect density was diminished via the oxygen plasma treatment. This suggests the V{sub th} degradation under NBIS is due to photo-transition of oxygen vacancy defects.

Yang, Shinhyuk [Oxide Electronics Research Team, Electronics and Telecommunications Research Institute, Daejeon 305-700 (Korea, Republic of); Department of Information Display, Kyung Hee University, Seoul 130-701 (Korea, Republic of); Hwan Ji, Kwang; Kyeong Jeong, Jae [Department of Materials Science and Engineering, Inha University, Incheon 402-751 (Korea, Republic of); Ki Kim, Un; Seong Hwang, Cheol [Department of Materials Science and Engineering, WCU Hybrid Materials Program, and Inter-university Semiconductor Research Center, Seoul National University, Seoul 151-742 (Korea, Republic of); Ko Park, Sang-Hee; Hwang, Chi-Sun [Oxide Electronics Research Team, Electronics and Telecommunications Research Institute, Daejeon 305-700 (Korea, Republic of); Jang, Jin [Department of Information Display, Kyung Hee University, Seoul 130-701 (Korea, Republic of)

2011-09-05T23:59:59.000Z

434

Observation of negative-frequency waves in a water tank: A classical analogue to the Hawking effect?  

E-Print Network (OSTI)

The conversion of positive-frequency waves into negative-frequency waves at the event horizon is the mechanism at the heart of the Hawking radiation of black holes. In black-hole analogues, horizons are formed for waves propagating in a medium against the current when and where the flow exceeds the wave velocity. We report on the first direct observation of negative-frequency waves converted from positive-frequency waves in a moving medium. The measured degree of mode conversion is significantly higher than expected from theory.

Germain Rousseaux; Christian Mathis; Philippe Maissa; Thomas G. Philbin; Ulf Leonhardt

2008-03-01T23:59:59.000Z

435

Effects of dust size distribution on dust negative ion acoustic solitary waves in a magnetized dusty plasma  

SciTech Connect

Dust negative ion acoustic solitary waves in a magnetized multi-ion dusty plasma containing hot isothermal electron, ions (light positive ions and heavy negative ions) and extremely massive charge fluctuating dust grains are investigated by employing the reductive perturbation method. How the dust size distribution affect the height and the thickness of the nonlinear solitary wave are given. It is noted that the characteristic of the solitary waves are different with the different dust size distribution. The magnitude of the external magnetic field also affects the solitary wave form.

Ma, Yi-Rong; Qi, Xin; Sun, Jian-An; Duan, Wen-Shan [Joint Laboratory of Atomic and Molecular Physics of NWNU and IMP CAS, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China and College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070 (China)] [Joint Laboratory of Atomic and Molecular Physics of NWNU and IMP CAS, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China and College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070 (China); Yang, Lei [Joint Laboratory of Atomic and Molecular Physics of NWNU and IMP CAS, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China and College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070 (China) [Joint Laboratory of Atomic and Molecular Physics of NWNU and IMP CAS, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China and College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070 (China); Department of Physics, Lanzhou University, Lanzhou 730000 (China)

2013-08-15T23:59:59.000Z

436

Battery system including batteries that have a plurality of positive terminals and a plurality of negative terminals  

DOE Patents (OSTI)

A lithium battery for use in a vehicle includes a container, a plurality of positive terminals extending from a first end of the lithium battery, and a plurality of negative terminals extending from a second end of the lithium battery. The plurality of positive terminals are provided in a first configuration and the plurality of negative terminals are provided in a second configuration, the first configuration differing from the second configuration. A battery system for use in a vehicle may include a plurality of electrically connected lithium cells or batteries.

Dougherty, Thomas J; Symanski, James S; Kuempers, Joerg A; Miles, Ronald C; Hansen, Scott A; Smith, Nels R; Taghikhani, Majid; Mrotek, Edward N; Andrew, Michael G

2014-01-21T23:59:59.000Z

437

Measurements of daily urinary uranium excretion in German peacekeeping personnel and residents of the Kosovo region to assess potential intakes of depleted uranium (DU)  

Science Journals Connector (OSTI)

Following the end of the Kosovo conflict, in June 1999, a study was instigated to evaluate whether there was a cause for concern of health risk from depleted uranium (DU) to German peacekeeping personnel serving in the Balkans. In addition, the investigations were extended to residents of Kosovo and southern Serbia, who lived in areas where DU ammunitions were deployed. In order to assess a possible DU intake, both the urinary uranium excretion of volunteer residents and water samples were collected and analysed using inductively coupled plasma-mass spectrometry (ICP-MS). More than 1300 urine samples from peacekeeping personnel and unexposed controls of different genders and age were analysed to determine uranium excretion parameters. The urine measurements for 113 unexposed subjects revealed a daily uranium excretion rate with a geometric mean of 13.9 ng/d (geometric standard deviation (GSD) = 2.17). The analysis of 1228 urine samples from the peacekeeping personnel resulted in a geometric mean of 12.8 ng/d (GSD = 2.60). It follows that both unexposed controls and peacekeeping personnel excreted similar amounts of uranium. Inter-subject variation in uranium excretion was high and no significant age-specific differences were found. The second part of the study monitored 24 h urine samples provided by selected residents of Kosovo and adjacent regions of Serbia compared to controls from Munich, Germany. Total uranium and isotope ratios were measured in order to determine DU content. 235U/238U ratios were within ± 0.3% of the natural value, and 236U/238U was less than 2 × 10? 7, indicating no significant DU in any of the urine samples provided, despite total uranium excretion being relatively high in some cases. Measurements of ground and tap water samples from regions where DU munitions were deployed did not show any contamination with DU, except in one sample. It is concluded that both peacekeeping personnel and residents serving or living in the Balkans, respectively, were not exposed to significant amounts of DU.

U. Oeh; N.D. Priest; P. Roth; K.V. Ragnarsdottir; W.B. Li; V. Höllriegl; M.F. Thirlwall; B. Michalke; A. Giussani; P. Schramel; H.G. Paretzke

2007-01-01T23:59:59.000Z

438

Nanosecond electro-optics of nematic liquid crystal with negative dielectric anisotropy  

E-Print Network (OSTI)

We study a nanosecond electro-optic response of a nematic liquid crystal in a geometry where an applied electric field $\\textbf{E}$ modifies the tensor order parameter but does not change the orientation of the optic axis (director $\\hat{\\textbf{N}}$). We use a nematic with negative dielectric anisotropy with the electric field applied perpendicularly to $\\hat{\\textbf{N}}$. The field changes the dielectric tensor at optical frequencies (optic tensor) due to the following mechanisms: (a) nanosecond creation of the biaxial orientational order; (b) uniaxial modification of the orientational order that occurs over timescales of tens of nanoseconds, and (c) the quenching of director fluctuations with a wide range of characteristic times up to milliseconds. We develop a model to describe the dynamics of all three mechanisms. We design the experimental conditions to selectively suppress the contributions from fluctuations quenching (c) and from the biaxial order effect (a) and thus, separate the contributions of the three mechanisms in the electro-optic response. As a result, the experimental data can be well fitted with the model. The analysis provides a detailed physical picture of how the liquid crystal responds to a strong electric field on a timescale of nanoseconds. This work provides a useful guide in the current search of the biaxial nematic phase. Namely, the temperature dependence of the biaxial susceptibility allows one to estimate the temperature of the potential uniaxial-to-biaxial phase transition. An analysis of the fluctuations quenching indicates that on a timescale of nanoseconds, the classic model with constant viscoelastic material parameters might reach its limit of validity. The effect of nanosecond electric modification of the order parameter (NEMOP) can be used in applications in which one needs to achieve ultrafast (nanosecond) changes of optical characteristics.

Volodymyr Borshch; Sergij V. Shiyanovskii; Bing-Xiang Li; Oleg D. Lavrentovich

2014-11-22T23:59:59.000Z

439

New effects of a long-lived negatively charged massive particle on big bang nucleosynthesis  

SciTech Connect

Primordial {sup 7}Li abundance inferred from observations of metal-poor stars is a factor of about 3 lower than the theoretical value of standard big bang nucleosynthesis (BBN) model. One of the solutions to the Li problem is {sup 7}Be destruction during the BBN epoch caused by a long-lived negatively charged massive particle, X{sup ?}. The particle can bind to nuclei, and X-bound nuclei (X-nuclei) can experience new reactions. The radiative X{sup ?} capture by {sup 7}Be nuclei followed by proton capture of the bound state of {sup 7}Be and X{sup ?} ({sup 7}Be{sub x}) is a possible {sup 7}Be destruction reaction. Since the primordial abundance of {sup 7}Li originates mainly from {sup 7}Li produced via the electron capture of {sup 7}Be after BBN, the {sup 7}Be destruction provides a solution to the {sup 7}Li problem. We suggest a new route of {sup 7}Be{sub x} formation, that is the {sup 7}Be charge exchange at the reaction of {sup 7}Be{sup 3+} ion and X{sup ?}. The formation rate depends on the ionization fraction of {sup 7}Be{sup 3+} ion, the charge exchange cross section of {sup 7}Be{sup 3+}, and the probability that excited states {sup 7}Be{sub x}* produced at the charge exchange are converted to the ground state. We find that this reaction can be equally important as or more important than ordinary radiative recombination of {sup 7}Be and X{sup ?}. The effect of this new route is shown in a nuclear reaction network calculation.

Kusakabe, Motohiko [School of Liberal Arts and Science, Korea Aerospace University, Goyang 412-791, Korea and Department of Physics, Soongsil University, Seoul 156-743 (Korea, Republic of); Kim, K. S. [School of Liberal Arts and Science, Korea Aerospace University, Goyang 412-791 (Korea, Republic of); Cheoun, Myung-Ki [Department of Physics, Soongsil University, Seoul 156-743 (Korea, Republic of); Kajino, Toshitaka [National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan and Department of Astronomy, Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan); Kino, Yasushi [Department of Chemistry, Tohoku University, Sendai 980-8578 (Japan); Mathews, Grant J. [National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan and Center for Astrophysics, Department of Physics, University of Notre Dame, Notre Dame, IN 46556 (United States)

2014-05-02T23:59:59.000Z

440

Mobility of Negative Ions in Flames by the Hall Effect Method  

Science Journals Connector (OSTI)

Variation with potential gradient of mobility of negative flame ions.—Using a flat salted flame, previously described by Wilson, between the poles of an electromagnet giving a field of 5000 gauss, the horizontal potential gradient X due to the current sent between two Pt electrodes and also the vertical potential gradient Y due to the Hall effect, were measured by means of two Pt sounding wires which could be rotated about a horizontal axis and which were connected to a quadrant electrometer. For a flame containing potassium carbonate the mobility k2=YHX was found to decrease from 26 m/sec for 1 volt/cm when the potential gradient was 1 volt/cm, to 16 m/sec for a gradient of 30 volts/cm. For a flame free from salt the mobility was some-what greater, decreasing from 26.5 m/sec for 5 volts/cm to 16 m/sec for 50 volts/cm. However, wide variation of concentration produced so little effect on the mobility that it could not be detected with certainty. The magneto-resistance effect which Heaps1 has shown enters into the mobility equation, was so small as to be negligible.Asymmetry of the Hall effect in flames.—The Hall effect was found to vary slightly with the direction of the magnetic field, the asymmetry being greater the greater the amount of salt in the flame. This asymmetry was probably due to the effect of the magnetic field on the upward velocity of the flame gases, which was evident in these experiments.

J. S. Watt

1925-01-01T23:59:59.000Z

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441

Surface Tension and Negative Pressure Interior of a Non-Singular `Black Hole'  

E-Print Network (OSTI)

The constant density interior Schwarzschild solution for a static, spherically symmetric collapsed star has a divergent pressure when its radius $R\\le\\frac{9}{8}R_s=\\frac{9}{4}GM$. We show that this divergence is integrable, and induces a non-isotropic transverse stress with a finite redshifted surface tension on a spherical surface of radius $R_0=3R\\sqrt{1-\\frac{8}{9}\\frac{R}{R_s}}$. For $r surface is localized at the Schwarzschild radius itself, $R_0=R_s$, and the solution has constant negative pressure $p =-\\bar\\rho$ everywhere in the interior $rsurface tension of the condensate star surface is given by $\\tau_s=\\Delta\\kappa/8\\pi G$, where $\\Delta\\kappa=\\kappa_+-\\kappa_-=2\\kappa_+=1/R_s$ is the difference of equal and opposite surface gravities between the exterior and interior Schwarzschild solutions. The First Law, $dM=dE_v+\\tau_s dA$ is recognized as a purely mechanical classical relation at zero temperature and zero entropy, describing the volume energy and surface energy change respectively. Since there is no event horizon, the Schwarzschild time t of such a non-singular gravitational condensate star is a global time, fully consistent with unitary time evolution in quantum theory. The $p=-\\bar\\rho$ interior acts as a defocusing lens for light passing through the condensate, leading to imaging characteristics distinguishable from a classical black hole. A further observational test of gravitational condensate stars with a physical surface vs. black holes is the discrete surface modes of oscillation which should be detectable by their gravitational wave signatures.

Pawel O. Mazur; Emil Mottola

2015-01-15T23:59:59.000Z

442

J. Phys.: Condens. Malter 6 (1994) 73-78, F'rinted in lhe UK Negative differentialmagnetoresistanceand commensurability  

E-Print Network (OSTI)

J. Phys.: Condens. Malter 6 (1994) 73-78, F'rinted in lhe UK Negative de Sao Carlos. Universidade de S o Paula, SP, Brazil 3 Instituteof Semiconductor Physics. Russian-dimensionalquasiclystals [6], and disordered 17.81. 8 Permanent address: InsliNte of Semiconductor Physics. Russian Academy

Gusev, Guennady

443

Direct electrolytic dissolution of silicate minerals for air CO2 mitigation and carbon-negative H2 production  

Science Journals Connector (OSTI)

...air capture would best be located where capital, energy, and delivered reagent costs...carbon-negative electrolysis vs. carbon-positive natural gas reforming (29)], and if 44 t of CO 2 are captured...cost of carbon capture and storage for natural gas combined cycle power plants . Environ...

Greg H. Rau; Susan A. Carroll; William L. Bourcier; Michael J. Singleton; Megan M. Smith; Roger D. Aines

2013-01-01T23:59:59.000Z

444

Trade-off between Positive and Negative Design of Protein Stability: From Lattice Models to Real Proteins  

E-Print Network (OSTI)

ensemble of the sequence in which a pair of residues is in contact. Lattice model proteins with a high (such as disordered proteins and proteins that are dependent on chaperonins for their folding) indicatesTrade-off between Positive and Negative Design of Protein Stability: From Lattice Models to Real

Unger, Ron

445

Prostaglandin E2 Receptor, EP3, Is Induced in Diabetic Islets and Negatively Regulates Glucose-and Hormone-  

E-Print Network (OSTI)

Prostaglandin E2 Receptor, EP3, Is Induced in Diabetic Islets and Negatively Regulates Glucose, the gene for the pros- taglandin E receptor 3 (EP3), was upregulated with diabetes. The EP3 receptor involved in the synthesis of PGE2. We hypothesized that increased signaling through EP3 might be coincident

Attie, Alan D.

446

Dominant-Negative Synthesis Suppression of Voltage-Gated Calcium Channel Cav2.2 Induced by Truncated Constructs  

E-Print Network (OSTI)

Dominant-Negative Synthesis Suppression of Voltage-Gated Calcium Channel Cav2.2 Induced, United Kingdom Voltage-gated calcium channel 1 subunits consist of four domains (I­IV), each with six by the cytoplasmic I-II loop of Cav2.2. It requires transmembrane seg- ments, because the isolated Cav2.2 N terminus

Dolphin, Annette C.

447

The tomato ethylene receptors NR and LeETR4 are negative regulators of ethylene response and exhibit  

E-Print Network (OSTI)

The tomato ethylene receptors NR and LeETR4 are negative regulators of ethylene response, 2000 (received for review December 16, 1999) The plant hormone ethylene is involved in many a family of ethylene receptors, desig- nated LeETR1, LeETR2, NR, LeETR4, and LeETR5, with homology

Klee, Harry J.

448

Mesoscale Self-Assembly: Capillary Bonds and Negative Menisci Ned Bowden, Scott R. J. Oliver, and George M. Whitesides*  

E-Print Network (OSTI)

Mesoscale Self-Assembly: Capillary Bonds and Negative Menisci Ned Bowden, Scott R. J. Oliver., Cambridge, Massachusetts 02138 ReceiVed: September 2, 1999 This paper describes the self-assembly) that examined the self-assembly of hexagonal plates of PDMS (F ) 1.05 g/cm3) that had a density close

Prentiss, Mara

449

The Most Negative and the Most Positive Value of the Spin Operator for a Many Fermion System  

E-Print Network (OSTI)

We consider the most negative and most positive value of the spin operator for a many nucleon system. In the usual Nilsson model and in the single nucleon model this value has a narrow range.In the Nilsson model with an excited intrinsic state we can get values of the spin operator greater than one.

Larry Zamick

2011-03-29T23:59:59.000Z

450

TWO-SIDED EXIT PROBLEM FOR A SPECTRALLY NEGATIVE -STABLE ORNSTEIN-UHLENBECK PROCESS AND THE WRIGHT'S GENERALIZED  

E-Print Network (OSTI)

TWO-SIDED EXIT PROBLEM FOR A SPECTRALLY NEGATIVE -STABLE ORNSTEIN-UHLENBECK PROCESS AND THE WRIGHT in terms of the Wright's generalized hypergeometric function 21. The Laplace transform of first passage analytical properties for some Wright's generalized hypergeometric functions. AMS 2000 Subject classification

Patie, Pierre

451

Role of hydrogen in Ge/HfO2/Al gate stacks subjected to negative bias temperature instability  

E-Print Network (OSTI)

Role of hydrogen in Ge/HfO2/Al gate stacks subjected to negative bias temperature instability N 2007; published online 17 January 2008 This work investigates the role of hydrogen and nitrogen in a Ge. Virtually unchanged interface state density as a function of NBTI indicates no atomic hydrogen release from

Misra, Durgamadhab "Durga"

452

METAMATERIALS: Large-area printed 3D negative-index metamaterial is flexible -Laser Focus World http://www.laserfocusworld.com/articles/print/volume-47/issue-8/world-news/metamaterials-large-area-printed-3d-negative-index-metamaterial-is-flexible.html[8/1  

E-Print Network (OSTI)

METAMATERIALS: Large-area printed 3D negative-index metamaterial is flexible - Laser Focus World-area printed 3D negative-index metamaterial is flexible METAMATERIALS: Large-area printed 3D negative, with the advent of a printing process that produces large-area 3D multilayer optical NIMs --8.7 Ã? 8.7 cm square

Rogers, John A.

453

Effects of positive and negative framing on seven American newspapers during the Persian Gulf War in 1991 and the Iraq War in 2003.  

E-Print Network (OSTI)

??This study evaluates the positive and negative aspects of major American newspaper coverage of the Persian Gulf War in 1991 and the war in Iraq… (more)

White, Davin T.

2004-01-01T23:59:59.000Z

454

Study of beam optics and beam halo by integrated modeling of negative ion beams from plasma meniscus formation to beam acceleration  

SciTech Connect

To understand the physical mechanism of the beam halo formation in negative ion beams, a two-dimensional particle-in-cell code for simulating the trajectories of negative ions created via surface production has been developed. The simulation code reproduces a beam halo observed in an actual negative ion beam. The negative ions extracted from the periphery of the plasma meniscus (an electro-static lens in a source plasma) are over-focused in the extractor due to large curvature of the meniscus.

Miyamoto, K. [Naruto University of Education, 748 Nakashima, Takashima, Naruto-cho, Naruto-shi, Tokushima 772-8502 (Japan)] [Naruto University of Education, 748 Nakashima, Takashima, Naruto-cho, Naruto-shi, Tokushima 772-8502 (Japan); Okuda, S.; Hatayama, A. [Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522 (Japan)] [Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522 (Japan); Hanada, M.; Kojima, A. [Japan Atomic Energy Agency, 801-1 Mukouyama, Naka 319-0913 (Japan)] [Japan Atomic Energy Agency, 801-1 Mukouyama, Naka 319-0913 (Japan)

2013-01-14T23:59:59.000Z

455

Consumers' Emotional Reactions to Negative Publicity and Crisis Management in the Health Care Industry: A Multiple Case Study of Lipitor and Oxyelite Pro  

Science Journals Connector (OSTI)

Negative publicity has an adverse effect on an organization, especially in online environments where consumers' word of mouth travels fast. By implementing an appropriate response strategy and being attentive about consumers' emotional reactions, an ... Keywords: consumers' emotional reaction, crisis management, health care industry, multiple case study, negative publicity, organizational response, social media

Hosung Timothy Rhee, Sung-Byung Yang

2014-10-01T23:59:59.000Z

456

Using Phonon Resonances as a Route to All-Angle Negative Refraction in the Far-Infrared Region: The Case of Crystal Quartz  

Science Journals Connector (OSTI)

We consider how all-angle negative refraction may be induced in anisotropic crystals by making use of the phonon response. We investigate the example of crystal quartz at far-infrared wavelengths. Reflection and transmission measurements confirm the expected behavior, and show relatively high transmission efficiency at frequencies at which negative refraction occurs.

R. Rodrigues da Silva; R. Macêdo da Silva; T. Dumelow; J. A. P. da Costa; S. B. Honorato; A. P. Ayala

2010-10-12T23:59:59.000Z

457

TiSnSb a new efficient negative electrode for Li-ion batteries: mechanism investigations by operando-XRD and Mossbauer techniques  

E-Print Network (OSTI)

TiSnSb a new efficient negative electrode for Li-ion batteries: mechanism investigations We report the electrochemical study of TiSnSb towards Li, as a negative electrode for Li-ion batteries. TiSnSb can reversibly take up more than 5 lithiums per formula unit leading to reversible

Boyer, Edmond

458

Both positive and negative effects on immune responses by expression of a second class II MHC molecule  

Science Journals Connector (OSTI)

Abstract It is perplexing why vertebrates express a limited number of major histocompatibility complex (MHC) molecules when theoretically, having a greater repertoire of MHC molecules would increase the number of epitopes presented, thereby enhancing thymic selection and T cell response to pathogens. It is possible that any positive effects would either be neutralized or outweighed by negative selection restricting the T cell repertoire. We hypothesize that the limit on MHC number is due to negative consequences arising from expressing additional MHC. We compared T cell responses between B6 mice (I-A+) and B6.E+ mice (I-A+, I-E+), the latter expressing a second class II MHC molecule, I-Eb, due to a monomorphic E?k transgene that pairs with the endogenous I-E?b chain. First, the naive T cell V? repertoire was altered in B6.E+ thymi and spleens, potentially mediating different outcomes in T cell reactivity. Although the B6 and B6.E+ responses to hen egg-white lysozyme (HEL) protein immunization remained similar, other immune models yielded differences. For viral infection, the quality of the T cell response was subtly altered, with diminished production of certain cytokines by B6.E+ CD4+ T cells. In alloreactivity, the B6.E+ T cell response was significantly dampened. Finally, we observed markedly enhanced susceptibility to experimental autoimmune encephalomyelitis (EAE) in B6.E+ mice. This correlated with decreased percentages of nTreg cells, supporting the concept of Tregs exhibiting differential susceptibility to negative selection. Altogether, our data suggest that expressing an additional class II MHC can produce diverse effects, with more severe autoimmunity providing a compelling explanation for limiting the expression of MHC molecules.

Peggy P. Ni; Yaming Wang; Paul M. Allen

2014-01-01T23:59:59.000Z

459

Low local recurrence rate without postmastectomy radiation in node-negative breast cancer patients with tumors 5 cm and larger  

SciTech Connect

Purpose: To assess the need for adjuvant radiotherapy following mastectomy for patients with node-negative breast tumors 5 cm or larger. Methods and Materials: Between 1981 and 2002, a total of 70 patients with node-negative breast cancer and tumors 5 cm or larger were treated with mastectomy and adjuvant systemic therapies but without radiotherapy at three institutions. We retrospectively assessed rates and risk factors for locoregional failure (LRF), overall survival (OS), and disease-free survival (DFS) in these patients. Results: With a median follow-up of 85 months, the 5-year actuarial LRF rate was 7.6% (95% confidence interval, 3%-16%). LRF was primarily in the chest wall (4/5 local failures), and lymphatic-vascular invasion (LVI) was statistically significantly associated with LRF risk by the log-rank test (p = 0.017) and in Cox proportional hazards analysis (p 0.038). The 5-year OS and DFS rates were 83% and 86% respectively. LVI was also significantly associated with OS and DFS in both univariate and multivariate analysis. Conclusions: This series demonstrates a low LRF rate of 7.6% among breast cancer patients with node-negative tumors 5 cm and larger after mastectomy and adjuvant systemic therapy. Our data indicate that further adjuvant radiation therapy to increase local control may not be indicated by tumor size alone in the absence of positive lymph nodes. LVI was significantly associated with LRF in our series, indicating that patients with this risk factor require careful consideration with regard to further local therapy.

Floyd, Scott R. [Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA (United States); Harvard Radiation Oncology Program, Harvard Medical School, Boston, MA (United States); Buchholz, Thomas A. [Department of Radiation Oncology, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States); Haffty, Bruce G. [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, CT (United States); Goldberg, Saveli [Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA (United States); Niemierko, Andrzej [Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA (United States); Raad, Rita Abi [Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA (United States); Oswald, Mary J. [Department of Radiation Oncology, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States); Sullivan, Timothy [Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA (United States); Strom, Eric A. [Department of Radiation Oncology, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States); Powell, Simon N. [Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA (United States); Katz, Angela [Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA (United States); Taghian, Alphonse G. [Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA (United States)]. E-mail: ataghian@partners.org

2006-10-01T23:59:59.000Z

460

Negative-parity states and {beta} decays in odd Ho and Dy nuclei with A=151,153  

SciTech Connect

We investigated the negative-parity states and electromagnetic transitions in {sup 151,153}Ho and {sup 151,153}Dy within the framework of the interacting boson fermion model 2 (IBFM-2). Spin assignments for some states with uncertain spin are made based on this calculation. Calculated excitation energies, electromagnetic transitions, and branching ratios are compared with available experimental data and a good agreement is obtained. The model wave functions were used to study {beta} decays from Ho to Dy isotones, and the calculated logft values are close to the experimental data.

Al-Khudair, Falih H. [Department of Physics, Tsinghua University, Beijing 100084 (China); Center of Nuclear Theory, Lanzhou Heavy Ion National Laboratory, Lanzhou 730000 (China); Department of Physics, College of Education, Basrah University, Basrah (Iraq); Long Guilu [Department of Physics, Tsinghua University, Beijing 100084 (China); Center of Nuclear Theory, Lanzhou Heavy Ion National Laboratory, Lanzhou 730000 (China); Sun Yang [Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 (China); Joint Institute for Nuclear Astrophysics, University of Notre Dame, Notre Dame, Indiana 46556 (United States)

2008-03-15T23:59:59.000Z

Note: This page contains sample records for the topic "negative daily imbalances" from the National Library of EnergyBeta (NLEBeta).
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to obtain the most current and comprehensive results.


461

Studying of negative ions source based on reflective discharge in regimes with cesium added and without cesium  

SciTech Connect

The results of theoretical and experimental studies of physical processes in the source of hydrogen negative ions are presented. The source is based on reflective discharge with incandescent cathode and H{sup -} ions extraction across magnetic field. Calculations of gas discharge plasma parameters for given current and energy of electrons emitted from the cathode are performed in theoretical part of the proceeding. Plasma parameters, including H{sup -} ions concentration, are determined on a basis of Boltzman equation solution taking into consideration principal collision reactions in a volume and at a surface of the discharge chamber.

Soloshenko, I. A.; Shchedrin, A. I.; Ryabtsev, A. V. [Institute of Physics of Ukrainian National Academy of Sciences Prospect Nauki, 46, 252022 Kiev 22 (Ukraine)

1998-08-20T23:59:59.000Z

462

Negative Differential Resistance Behavior and Memory Effect in Laterally Bridged ZnO Nanorods Grown by Hydrothermal Method  

Science Journals Connector (OSTI)

Negative Differential Resistance Behavior and Memory Effect in Laterally Bridged ZnO Nanorods Grown by Hydrothermal Method ... Therefore, investigating and studying the electric property in nano-scale devices are necessary to advance toward next-generation memory devices. ... The barrier height (?B) can be obtained by solving the Poisson’s equation including the interface charge(2)where NIS is the density of trapped charge in the interface, ?r is the relative permittivity, ?0 is the permittivity of free space, and q is the elementary charge. ...

Ming-Yueh Chuang; Ying-Chih Chen; Yan-Kuin Su; Chih-Hung Hsiao; Chien-Sheng Huang; Jeng-Je Tsai; Hsin-Chieh Yu

2014-03-13T23:59:59.000Z

463

Negative permittivity and permeability spectra of Cu/yttrium iron garnet hybrid granular composite materials in the microwave frequency range  

SciTech Connect

The relative complex permittivity and permeability spectra of the coagulated copper and yttrium iron garnet (Cu/YIG) hybrid granular composite materials have been studied in the microwave range. The insulator to metal transition was observed at the percolation threshold of Cu particle content (?{sub Cu}?=?16.0 vol. %) in the electrical conductivity. In the percolation threshold, the low frequency plasmonic state caused by the metallic Cu particle networks was observed. The percolated Cu/YIG granular composites show simultaneous negative permittivity and permeability spectra under external magnetic fields.

Tsutaoka, Takanori, E-mail: tsutaok@hiroshima-u.ac.jp; Fukuyama, Koki; Kinoshita, Hideaki [Graduate School of Education, Hiroshima University, 1-1-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8524 (Japan)] [Graduate School of Education, Hiroshima University, 1-1-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8524 (Japan); Kasagi, Teruhiro [Tokuyama College of Technology, Gakuendai, Shunan, Yamaguchi 745-8585 (Japan)] [Tokuyama College of Technology, Gakuendai, Shunan, Yamaguchi 745-8585 (Japan); Yamamoto, Shinichiro; Hatakeyama, Kenichi [Graduate School of Engineering, University of Hyogo, Syosha, Himeji 671-2201 (Japan)] [Graduate School of Engineering, University of Hyogo, Syosha, Himeji 671-2201 (Japan)

2013-12-23T23:59:59.000Z

464

Compression effects in inductively coupled, high-power radio-frequency discharges for negative hydrogen ion production  

Science Journals Connector (OSTI)

In the paper we present a simplified model description of inductively coupled plasmadischarges operating at a rather high radio-frequency (rf) power. In this case the induced high plasma currents can cause periodic compressions over a substantial radial distance. Such conditions are obviously given in rf driven 1 MHz/150 kW plasma sources developed at the Institute for Plasma Physics Garching for negative (hydrogen) ion production in future neutral beam injection (NBI) systems for nuclear fusion research such as the 1 MeV/50 MW NBI system for the International Thermonuclear Experimental Reactor [T. Inoue R. Hemsworth V. Kulygin and Y. Okumura Fusion Eng. Design 55 291 (2001)]. The given model describes quite well the compression and other features of the discharge. The results include the Ohmic power input (i.e. electron heating) the resulting density build-up and—as a new feature—periodical plasma compressions leading to a direct energy input also into the plasma ions. The model also explains the strange effect of small argon admixtures which improve the negative ion yield in rf sources by a factor of up to 2–3 (but which have no effect in conventional dc arc sources). With the calculated dependencies from external parameters (e.g. rf-power and frequency gas pressure ion mass or the specific geometry) the modeling may help for the further optimization of the rf source.

Rolf Wilhelm

2003-01-01T23:59:59.000Z

465

Energy flux pattern of inverse Goos-Hanchen shift in photonic crystals with negative index of refraction  

E-Print Network (OSTI)

The energy flux patterns of inverse Goos-Hanchen (GH) shift around the interface between air and negatively refractive photonic crystal (NRPhC) with different surface terminations is investigated. Results show that NRPhC exhibits inverse GH shift in TM and TE polarization, and the localization and pattern of energy flux differ in TM and TE polarizations and are strongly affected by surface termination. This is different to the condition of negative permittivity materials (i.e., metal), which only presents inverse GH shift in TM polarization. In the case of TE polarization, the energy flux pattern exhibits the flux of backward wave whose localization changes from the surface to inside of NRPhC with the variation of surface termination. In the case of TM polarization, the energy flux pattern is always confined within the surface of NRPhC, whereas its pattern changes from the flux of backward wave to vortices at the surface of NRPhC, which is different to the energy flux of TM polarization of metal. By properly ...

Hu, Jinbing; Chen, Jiabi; Jiang, Qiang; Wang, Yan; Zhuang, Songlin

2015-01-01T23:59:59.000Z

466

PGC-1-related coactivator (PRC) negatively regulates endothelial adhesion of monocytes via inhibition of NF ?B activity  

SciTech Connect

Highlights: •First time to display that LPS downregulate the expression of PRC. •First time to show that PRC inhibits the induction of VCAM-1 and E-selectin. •First time to show that PRC inhibit monocytes attachment to endothelial cells. •First time to display that PRC inhibits transcriptional activity of NF-?B. •PRC protects the respiration rate and suppresses the glycolysis rate against LPS. -- Abstract: PGC-1-related coactivator (PRC) is a growth-regulated transcriptional cofactor known to activate many of the nuclear genes specifying mitochondrial respiratory function. Endothelial dysfunction is a prominent feature found in many inflammatory diseases. Adhesion molecules, such as VCAM-1, mediate the attachment of monocytes to endothelial cells, thereby playing an important role in endothelial inflammation. The effects of PRC in regards to endothelial inflammation remain unknown. In this study, our findings show that PRC can be inhibited by the inflammatory cytokine LPS in cultured human umbilical vein endothelial cells (HUVECs). In the presence of LPS, the expression of endothelial cell adhesion molecular, such as VCAM1 and E-selectin, is found to be increased. These effects can be negated by overexpression of PRC. Importantly, monocyte adhesion to endothelial cells caused by LPS is significantly attenuated by PRC. In addition, overexpression of PRC protects mitochondrial metabolic function and suppresses the rate of glycolysis against LPS. It is also found that overexpression of PRC decreases the transcriptional activity of NF-?B. These findings suggest that PRC is a negative regulator of endothelial inflammation.

Chengye, Zhan; Daixing, Zhou, E-mail: dxzhou7246@hotmail.com; Qiang, Zhong; Shusheng, Li

2013-09-13T23:59:59.000Z

467

Corepressor MMTR/DMAP1 is an intrinsic negative regulator of CAK kinase to regulate cell cycle progression  

SciTech Connect

Research highlights: {yields} Co-repressor MMTR/DMAP1 is an intrinsic negative regulator of CAK kinase. {yields} MMTR inhibited cell proliferation due to delays of G1/S and G2/M transitions. {yields} Co-expression of MAT1 and MMTR rescued both cell growth and proliferation rate. {yields} MMTR blocked the CAK kinase-mediated phosphorylation of CDK1. {yields} The expression level of MMTR was modulated during cell cycle progression. -- Abstract: We have previously reported that MMTR (MAT1-mediated transcriptional repressor) is a co-repressor that inhibits TFIIH-mediated transcriptional activity via interaction with MAT1 (Kang et al., 2007). Since MAT1 is a member of the CAK kinase complex that is crucial for cell cycle progression and that regulates CDK phosphorylation as well as the general transcription factor TFIIH, we investigated MMTR function in cell cycle progression. We found that MMTR over-expression delayed G1/S and G2/M transitions, whereas co-expression of MAT1 and MMTR rescued the cell growth and proliferation rate. Moreover, MMTR was required for inhibition of CAK kinase-mediated CDK1 phosphorylation. We also showed that the expression level of MMTR was modulated during cell cycle progression. Our data support the notion that MMTR is an intrinsic negative cell cycle regulator that modulates the CAK kinase activity via interaction with MAT1.

Shin, June Ho; Kang, Ho Chul [Department of Life Science and Research Institute for Natural Sciences, College of Natural Sciences, Hanyang University, Seoul 133-791 (Korea, Republic of)] [Department of Life Science and Research Institute for Natural Sciences, College of Natural Sciences, Hanyang University, Seoul 133-791 (Korea, Republic of); Park, Yun-Yeon [Department of Biochemistry and Department of Molecular Science and Technology, Ajou University School of Medicine, Suwon 443-721 (Korea, Republic of)] [Department of Biochemistry and Department of Molecular Science and Technology, Ajou University School of Medicine, Suwon 443-721 (Korea, Republic of); Ha, Dae Hyun; Choi, Youn Hee; Eum, Hea Young; Kang, Bong Gu; Chae, Ji Hyung; Shin, Incheol [Department of Life Science and Research Institute for Natural Sciences, College of Natural Sciences, Hanyang University, Seoul 133-791 (Korea, Republic of)] [Department of Life Science and Research Institute for Natural Sciences, College of Natural Sciences, Hanyang University, Seoul 133-791 (Korea, Republic of); Lee, Jae-Ho [Department of Biochemistry and Department of Molecular Science and Technology, Ajou University School of Medicine, Suwon 443-721 (Korea, Republic of)] [Department of Biochemistry and Department of Molecular Science and Technology, Ajou University School of Medicine, Suwon 443-721 (Korea, Republic of); Kim, Chul Geun, E-mail: cgkim@hanyang.ac.kr [Department of Life Science and Research Institute for Natural Sciences, College of Natural Sciences, Hanyang University, Seoul 133-791 (Korea, Republic of)

2010-11-05T23:59:59.000Z

468

Abstract 4592: Etirinotecan pegol accumulates in breast cancer brain metastases and prolongs survival in an experimental model of brain metastases of human triple negative breast cancer  

Science Journals Connector (OSTI)

...Etirinotecan pegol accumulates in breast cancer brain metastases and prolongs survival in an experimental model of brain metastases of human triple negative breast...Morgantown, WV. Background: Breast cancer brain metastases (BCBM) remain a challenging...

Mohamed Nounou; Ute Hoch; Chris E. Adkins; Tori B. Terrell; Heidi Villalba; Michael E. Eldon; Paul R. Lockman

2014-10-01T23:59:59.000Z

469

Numerical simulations of negative-index refraction in wedge-shaped metamaterials Z. G. Dong, S. N. Zhu,* and H. Liu  

E-Print Network (OSTI)

naturally occurring materials 1­4 . Since the first LHM consisting of metallic split ring resonators SRR 9 , negative Goos- Hanchen shift 10 , reversal Cherenkov radiation, and reversal Doppler shift

Cao, Wenwu

470

Abstract PR12: Nuclear HSET, a predictor for metastasis, disease relapse, and poor survival, is a racial disparity biomarker in triple-negative breast cancer patients  

Science Journals Connector (OSTI)

...end-directed kinesin that has recently been implicated in carcinogenesis. HSET overexpression predicts lung cancer metastasis to the brain, and HSET is upregulated in triple-negative (TN) breast cancer that most commonly occurs in African American (AA) patients...

Angela Ogden; Gabriela Oprea-Ilies; Padmashree CG Rida; Dana Nickleach; Yuan Liu; Guilherme Cantuaria; Ritu Aneja

2014-11-01T23:59:59.000Z

471

Performance characteristics of positive and negative delayed feedback on chaotic dynamics of directly modulated InGaAsP semiconductor lasers  

E-Print Network (OSTI)

The chaotic dynamics of directly modulated semiconductor lasers with delayed optoelectronic feedback is studied numerically. The effects of positive and negative delayed optoelectronic feedback in producing chaotic outputs from such lasers with nonlinear gain reduction in its optimum value range is investigated using bifurcation diagrams. The results are confirmed by calculating the Lyapunov exponents. A negative delayed optoelectronic feedback configuration is found to be more effective in inducing chaotic dynamics to such systems with nonlinear gain reduction factor in the practical value range.

Bindu M. Krishna; Manu. P. John; V. M. Nandakumaran

2008-08-27T23:59:59.000Z

472

Synthesis of cobalt oxide-reduced graphene nanocomposite and its enhanced electrochemical properties as negative material for alkaline secondary battery  

Science Journals Connector (OSTI)

Abstract A potential negative electrode material Co3O4@rGO is synthesized via a facile reflux condensation route. The electrochemical performances of Co3O4@rGO composite for alkaline rechargeable Ni/Co batteries have been systemically investigated for the first time. The reduced-graphene can remarkably enhance the electrochemical activity of Co3O4 materials, leading to a notable improvement of discharge capacity, cycle stability and rate capability. Interestingly, the maximum discharge capacity of Co3O4@rGO-20 (additive amount of GO is 20 mg) electrode can reach 511.4 mAh g?1 with the capacity retention of 89.1% after 100 cycles at a discharge current of 100 mA g?1. A properly electrochemical reaction mechanism of Co3O4@rGO electrode is also constructed in detail.

Yanan Xu; Xiaofeng Wang; Cuihua An; Yijing Wang; Lifang Jiao; Huatang Yuan

2014-01-01T23:59:59.000Z

473

Global Analysis Of The Negative Parity Non-Strange Baryons In The 1/N{sub c} Expansion  

SciTech Connect

A global study of the negative parity non-strange baryon observables is performed in the framework of the 1/N{sub c} expansion. Masses, partial decay widths and photo-couplings are simultaneously analyzed. A main objective is to determine the composition of the spin 1/2 and 3/2 nucleon states, which come in pairs and involve two mixing angles which can be determined and tested for consistency by the mentioned observables. The issue of the assignment of those nucleon states to the broken SU(4) X O(3) mixed-symmetry multiplet is studied in detail, with the conclusion that the assignment made in the old studies based on the non-relativistic quark model is the preferred one. In addition, the analysis involves an update of the input data with respect to previous works.

Goity, Jose L. [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Hampton University, Hampton, VA (United States); Gonzalez de Urreta, Emiliano Jose [Comision Nacional de Energia Atomica, 1429 Buenos Aires (Argentina); CONICET, Rivadavia 1917, (1033) Buenos Aires (Argentina); Scoccola, Norberto N. [Comision Nacional de Energia Atomica, 1429 Buenos Aires (Argentina); CONICET, Rivadavia 1917, (1033) Buenos Aires (Argentina); Universidad Favaloro, Sol?s 453, 1078 Buenos Aires (Argentina)

2014-02-01T23:59:59.000Z

474

Investigation of the negative differential resistance reproducibility in AlN/GaN double-barrier resonant tunnelling diodes  

SciTech Connect

AlN/GaN double-barrier resonant tunnelling diodes were grown by molecular beam epitaxy on GaN/sapphire template and processed into mesa diameters from 2 {mu}m to 4 {mu}m. The current-voltage characteristics were carried out in direct current operation and under-high vacuum. A sharp negative differential resistance (NDR) was detected in the forward bias at 120 K. The NDR was observed for the mesa size of 2 {mu}m at 4 V with a peak-to-valley current ratio of 3.5. The measurement conditions were chosen to make NDR reproducible more than 50 times and apparent in both scan voltage directions after electrical treatment.

Boucherit, M.; Soltani, A.; Rousseau, M.; Deresmes, D.; Berthe, M.; Durand, C.; De Jaeger, J.-C. [IEMN/UMR-CNRS 8520, Universite Lille1, PRES Universite Lille Nord de France (France); Monroy, E. [Equipe mixte CEA-CNRS-UJF Nanophysique et Semiconducteurs, DRFMC/SP2M/PSC, CEA-Grenoble (France)

2011-10-31T23:59:59.000Z

475

A method to avoid negative damped low frequent tower vibrations for a floating, pitch controlled wind turbine  

Science Journals Connector (OSTI)

Wind turbines mounted on floating platforms is subjected to completely different and soft foundation properties, than seen for onshore wind turbines. This leads to much lower natural frequencies, related to the rigid body motion of the structure which again leads to an unfavorable coupling between tower motion and the pitch control of the turbine. The tower motion in combination with the aerodynamics and the pitch control will be poor or even negative damped which causes large transient loads if not accounted for. The reason for this low damping is shown to be caused by a too fast pitch regulation compared to the motion of the tower or in other words the lowest control-structure natural frequency must be lower than the lowest critical tower frequency. A control algorithm is presented including the tuning method (pole-placement) to ensure the desired control frequency which provides stable tower vibration modes.

T J Larsen; T D Hanson

2007-01-01T23:59:59.000Z

476

Coagulase-Negative Staphylococci  

Science Journals Connector (OSTI)

...nomenclature: a folder available on the internet. Int. J. Syst. Bacteriol. 47 :590-592...S Conlan, CB Deming, J Davis, AC Young, NISC Comparative Sequencing Program...Stamm. 1983. Urinary tract infections in young adult women caused by Staphylococcus saprophyticus...

Karsten Becker; Christine Heilmann; Georg Peters

2014-10-01T23:59:59.000Z

477

Coagulase-Negative Staphylococci  

Science Journals Connector (OSTI)

...is significantly more prevalent in IVD abuse (IVDA) patients, more frequent left...contact with veterinary medicine and/or abuse of antimicrobial agents in husbandry...nomenclature: a folder available on the internet. Int. J. Syst. Bacteriol. 47 :590-592...

Karsten Becker; Christine Heilmann; Georg Peters

2014-10-01T23:59:59.000Z

478

Coagulase-Negative Staphylococci  

Science Journals Connector (OSTI)

...232-242. doi: 10.1086/524666 . 148. Miele...Infect. Dis. 29 :1085-1093. doi: 10...1087-1092. doi: 10.1080/080352502760311593...896-898. doi: 10.1086/428353 . 213. Hovelius...690-691. doi: 10.1080/00365540510027200...932-934. doi: 10.1086/520462 . 220. Baddour...

Karsten Becker; Christine Heilmann; Georg Peters

2014-10-01T23:59:59.000Z

479

Coagulase-Negative Staphylococci  

Science Journals Connector (OSTI)

...Comparable to the introduction of PCR, but with many fewer infrastructure requirements and much less necessity of specific skills...stepanovicii) was also recovered from a Eurasian lynx (473). A hybrid SCCmec-mecC element, consisting of SCCmec type VII, which...

Karsten Becker; Christine Heilmann; Georg Peters

2014-10-01T23:59:59.000Z

480

Charge steering of laser plasma accelerated fast ions in a liquid spray — creation of MeV negative ion and neutral atom beams  

SciTech Connect

The scenario of “electron capture and loss” has been recently proposed for the formation of negative ion and neutral atom beams with up to MeV kinetic energy [S. Ter-Avetisyan, et al., Appl. Phys. Lett. 99, 051501 (2011)]. Validation of these processes and of their generic nature is here provided in experiments where the ion source and the interaction medium have been spatially separated. Fast positive ions accelerated from a laser plasma source are sent through a cold spray where their charge is changed. Such formed neutral atom or negative ion has nearly the same momentum as the original positive ion. Experiments are released for protons, carbon, and oxygen ions and corresponding beams of negative ions and neutral atoms have been obtained. The electron capture and loss phenomenon is confirmed to be the origin of the negative ion and neutral atom beams. The equilibrium ratios of different charge components and cross sections have been measured. Our method is general and allows the creation of beams of neutral atoms and negative ions for different species which inherit the characteristics of the positive ion source.

Schnürer, M.; Abicht, F.; Priebe, G.; Braenzel, J. [Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy, 12489 Berlin (Germany)] [Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy, 12489 Berlin (Germany); Prasad, R. [Institute for Laser and Plasma Physics, Heinrich Heine University, Duesseldorf 40225 (Germany)] [Institute for Laser and Plasma Physics, Heinrich Heine University, Duesseldorf 40225 (Germany); Borghesi, M. [School of Mathematics and Physics, The Queen's University of Belfast, Belfast BT7 1NN (United Kingdom) [School of Mathematics and Physics, The Queen's University of Belfast, Belfast BT7 1NN (United Kingdom); ELI–Beamlines, Institute of Physics, Czech Academy of Science, 18221 Prague (Czech Republic); Andreev, A. [Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy, 12489 Berlin (Germany) [Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy, 12489 Berlin (Germany); Vavilov State Optical Institute, 119034 St. Petersburg (Russian Federation); Nickles, P. V. [WCU Department of Nanobio Materials and Electronics, Gwangju Institute of Science and Technology, Gwangju (Korea, Republic of)] [WCU Department of Nanobio Materials and Electronics, Gwangju Institute of Science and Technology, Gwangju (Korea, Republic of); Jequier, S.; Tikhonchuk, V. [Centre Lasers Intenses et Applications, University of Bordeaux, CEA, CNRS, 33405 Talence (France)] [Centre Lasers Intenses et Applications, University of Bordeaux, CEA, CNRS, 33405 Talence (France); Ter-Avetisyan, S. [ELI–Beamlines, Institute of Physics, Czech Academy of Science, 18221 Prague (Czech Republic)] [ELI–Beamlines, Institute of Physics, Czech Academy of Science, 18221 Prague (Czech Republic)

2013-11-15T23:59:59.000Z

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481

A mixed integer nonlinear programming (MINLP) supply chain optimisation framework for carbon negative electricity generation using biomass to energy with CCS (BECCS) in the UK  

Science Journals Connector (OSTI)

Abstract The co-firing of biomass and fossil fuels in conjunction with CO2 capture and storage (CCS) has the potential to lead to the generation of relatively inexpensive carbon negative electricity. In this work, we use a mixed integer nonlinear programming (MINLP) model of carbon negative energy generation in the UK to examine the potential for existing power generation assets to act as a carbon sink as opposed to a carbon source. Via a Pareto front analysis, we examine the technical and economic compromises implicit in transitioning from a dedicated fossil fuel only to a carbon negative electricity generation network. A price of approximately £30–50/t CO2 appears sufficient to incentivise a reduction of carbon intensity of electricity from a base case of 800 kg/MWh to less than 100 kg/MWh. However, the price required to incentivise the generation of carbon negative electricity is in the region of £120–175/t of CO2. In order for biomass to energy with CCS (BECCS) to be commercially attractive, the power plants in question must operate at a high load factor and high rates of CO2 capture. The relative fuel cost is a key determinant of required carbon price. Increasing biomass availability also reduces the cost of generating carbon negative electricity; however one must be cognisant of land use change implications.

O. Akgul; N. Mac Dowell; L.G. Papageorgiou; N. Shah

2014-01-01T23:59:59.000Z

482

Temporal characteristics of resonant surface polaritons in superlensing planar double-negative slabs: Development of analytical schemes and numerical models  

Science Journals Connector (OSTI)

The temporal behavior of electric fields in arbitrary double-negative planar slabs is systematically investigated in this paper, from both analytical and numerical perspectives. Concerning infinite slabs, a set of exact expressions for an exponential current excitation is derived through an efficient complex analysis, and an integrated study of surface polariton frequencies is performed. Subsequently, the significant case of a source with a random spatial profile is explored in order to obtain rigorous relations for the field and transient phenomena damping time with respect to problem parameters. On the other hand, a robust finite-difference time-domain methodology is introduced for the comprehensive examination of finite slabs, whose numerical simulations dictate the adoption of a resonatorlike discipline. This inevitable, yet very instructive, convention is physically justified by the almost perfect surface mode reflections at the edges of the slab. In this manner, the proposed formulation reveals a prominent increase in the excited polariton amplitude, relative to the corresponding infinite arrangements, which leads to larger transient times.

Dimitrios L. Sounas; Nikolaos V. Kantartzis; Theodoros D. Tsiboukis

2007-10-17T23:59:59.000Z

483

In-Cylinder Reaction Chemistry and Kinetics During Negative Valve Overlap Fuel Injection Under Low-Oxygen Conditions  

SciTech Connect

Fuel injection into the negative valve overlap (NVO) period is a common method for controlling combustion phasing in homogeneous charge compression ignition (HCCI) as well as other forms of advanced combustion. During this event, at least a portion of the fuel hydrocarbons can be converted to products containing significant levels of H2 and CO, as well as other short chain hydrocarbons by means of thermal cracking, water-gas shift, and partial oxidation reactions, depending on the availability of oxygen and the time-temperature-pressure history. The resulting products alter the autoignition properties of the combined fuel mixture for HCCI. Fuel-rich chemistry in a partial oxidation environment is also relevant to other high efficiency engine concepts (e.g., the dedicated EGR (D-EGR) concept from SWRI). In this study, we used a unique 6-stroke engine cycle to experimentally investigate the chemistry of a range of fuels injected during NVO under low oxygen conditions. Fuels investigated included iso-octane, iso-butanol, ethanol, and methanol. Products from NVO chemistry were highly dependent on fuel type and injection timing, with iso-octane producing less than 1.5% hydrogen and methanol producing more than 8%. We compare the experimental trends with CHEMKIN (single zone, 0-D model) predictions using multiple kinetic mechanisms available in the current literature. Our primary conclusion is that the kinetic mechanisms investigated are unable to accurately predict the magnitude and trends of major species we observed.

Kalaskar, Vickey B [ORNL] [ORNL; Szybist, James P [ORNL] [ORNL; Splitter, Derek A [ORNL] [ORNL; Pihl, Josh A [ORNL] [ORNL; Gao, Zhiming [ORNL] [ORNL; Daw, C Stuart [ORNL] [ORNL

2013-01-01T23:59:59.000Z

484

Parameterization of daily solar irradiance variability  

Science Journals Connector (OSTI)

The effects of solar systems operation can be compared only under very similar weather conditions. Diagnostics of the solar systems requires unequivocal determination of solar irradiation. Development of a method for precise identification of solar radiation day time profile is needed, as the methods used so far in the cloud cover determination are not satisfactory. The paper presents two optional methods, developed by the authors, for identification of the solar radiation profile. Advantages and disadvantages of the methods are also specified.

D. Czekalski; A. Chochowski; P. Obstawski

2012-01-01T23:59:59.000Z

485

Daily Wildfire Update June 11, 2012  

E-Print Network (OSTI)

, then back west to include Wilderness Ridge Way, Rist Creek Road, Spring Valley Road and CR41 and all Forest Service/Larimer County Location/County: Approximately 15 miles west of Fort Collins, Larimer Road 27E to Bellvue. 2. Areas south and west of Bellvue to include the Lory State Park area

486

Shanghai Daily wangyong@shanghaidaily.com  

E-Print Network (OSTI)

for an aging population and an obesity epidemic, sustainable clean water, re- duced air and water pollution: high air pollution and resulting diseases (eg, asthma, other lung diseases, cancer, etc); water pollution; climate change and risks to health; obesity, which is now of epidemic proportions among children

487

Energy Assurance Daily | Department of Energy  

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

issues. Published Monday through Friday to inform stakeholders of developments affecting energy systems, flows, and markets, it provides highlights of energy issues rather than a...

488

Daily Flight Planning and Operations Schedule  

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

to aircraft close at 9:45AM Return to Ponca City 2PM (depending on mission) Afternoon: review observations, plan for next day If 2PM take-off move aircraft out of hangar late...

489

Fall 2013 BOSTONIA Last year, the Daily  

E-Print Network (OSTI)

this system on a model minicity in his lab. SMARTER HVAC BU engineers have designed software that, once uploaded to a building's HVAC system, would measure airflow room by room and revise it to meet minimum standards, decreasing energy costs while keeping occupants happy. The invention earned Michael Gevelber

Spence, Harlan Ernest

490

Daily life support : building a collective neighborhood  

E-Print Network (OSTI)

Do the house forms and residential neighborhoods commonly found in the U.S. accommodate the present needs and lifestyles of the people who live in them? The single-family detached house and multi-family units like the ...

Hamanaka, Leslie K. (Leslie Kinu)

1990-01-01T23:59:59.000Z

491

EIA-930 Hourly and Daily Balancing ...  

Annual Energy Outlook 2012 (EIA)

not change from day-to-day or hour-to-hour, as specified in the immediately preceding section. For each hour of the day, hourly integrated demand is to be posted within ten...

492

ARM - General Changes in Daily Lives  

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

more about the scientific predictions about the climate changes due to the greenhouse effect, and so have the opportunity to contribute to future planning and policy making....

493

ARRA521 Recovery Act - Project Daily Report  

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

Spend Plan Spend Plan Obligated to Contracts Payments to Date Unpaid Balance Argonne National Laboratory $79,000,000 $79,000,000 $78,471,376 $528,624 Brookhaven National Laboratory $70,810,000 $70,809,616 $70,809,616 $0 Energy Technology Engineering Center $51,675,000 $51,675,000 $51,675,000 $0 Hanford (Office of River Protection) $326,035,000 $325,999,617 $325,999,617 $0 Hanford (Richland) $1,634,500,000 $1,633,901,799 $1,633,277,979 $623,821 Idaho $467,875,000 $467,840,907 $467,840,907 $0 Los Alamos National Laboratory $211,975,000 $211,954,781 $211,954,781 $0 Moab $108,350,000 $108,350,000 $108,204,128 $145,872 Mound $17,900,000 $17,525,587 $17,525,587 $0 Nevada Nuclear Security Site $44,325,000 $44,300,871 $44,300,869 $2 Oak Ridge $755,110,000 $754,990,004 $739,849,558 $15,140,447 Paducah $80,400,000 $80,400,000

494

Gasoline-like Fuel Effects on High-load, Boosted HCCI Combustion Employing Negative Valve Overlap Strategy  

SciTech Connect

In recent years a number of studies have demonstrated that boosted operation combined with external EGR is a path forward for expanding the high load limit of homogeneous charge compression ignition (HCCI) operation with the negative valve overlap (NVO) valve strategy. However, the effects of fuel composition with this strategy have not been fully explored. In this study boosted HCCI combustion is investigated in a single-cylinder research engine equipped with direct injection (DI) fueling, cooled external exhaust gas recirculation (EGR), laboratory pressurized intake air, and a fully-variable hydraulic valve actuation (HVA) valve train. Three fuels with significant compositional differences are investigated: regular grade gasoline (RON = 90.2), 30% ethanol-gasoline blend (E30, RON = 100.3), and 24% iso-butanol-gasoline blend (IB24, RON = 96.6). Results include engine loads from 350 to 800 kPa IMEPg for all fuels at three engine speeds 1600, 2000, and 2500 rpm. All operating conditions achieved thermal efficiency (gross indicated efficiency) between 38 and 47%, low NOX emissions ( 0.1 g/kWh), and high combustion efficiency ( 96.5%). Detailed sweeps of intake manifold pressure (atmospheric to 250 kPaa), EGR (0 25% EGR), and injection timing are conducted to identify fuel-specific effects. The major finding of this study is that while significant fuel compositional differences exist, in boosted HCCI operation only minor changes in operational conditions are required to achieve comparable operation for all fuels. In boosted HCCI operation all fuels were able to achieve matched load-speed operation, whereas in conventional SI operation the fuel-specific knock differences resulted in significant differences in the operable load-speed space. Although all fuels were operable in boosted HCCI, the respective air handling requirements are also discussed, including an analysis of the demanded turbocharger efficiency.

Kalaskar, Vickey B [ORNL] [ORNL; Szybist, James P [ORNL] [ORNL; Splitter, Derek A [ORNL] [ORNL

2014-01-01T23:59:59.000Z

495

Thermal rectification and negative differential thermal resistance in lattices with mass gradient Nuo Yang,1 Nianbei Li,1 Lei Wang,1 and Baowen Li1,2,  

E-Print Network (OSTI)

Thermal rectification and negative differential thermal resistance in lattices with mass gradient thermal resistance is observed. Possible applications in constructing thermal rectifiers and thermal properties, the thermal properties of graded materials have not yet been fully studied see the recent review

Li, Baowen

496

Magnetic and orbital orders coupled to negative thermal expansion in Mott insulators Ca2Ru1?xMxO4 (M = Mn and Fe)  

Science Journals Connector (OSTI)

Ca2RuO4 is a structurally driven Mott insulator with a metal-insulator transition at TMI = 357K, followed by a well-separated antiferromagnetic order at TN = 110 K. Slightly substituting Ru with a 3d transition metal ion M effectively shifts TMI by weakening the orthorhombic distortion and induces either metamagnetism or magnetization reversal below TN. Moreover, M doping for Ru produces negative thermal expansion in Ca2Ru1?xMxO4 (M = Cr, Mn, Fe, or Cu); the lattice volume expands on cooling with a total volume expansion ratio, ?V/V, reaching as high as 1%. The onset of the negative thermal expansion closely tracks TMI and TN, sharply contrasting classic negative thermal expansion that shows no relevance to electronic properties. In addition, the observed negative thermal expansion occurs near room temperature and extends over a wide temperature interval up to 300 K. These findings underscore new physics driven by a complex interplay between orbital, spin, and lattice degrees of freedom.

T. F. Qi, O. B. Korneta, S. Parkin, Jiangping Hu, and G. Cao

2012-04-26T23:59:59.000Z

497

Binding STAT2 by the Acidic Domain of Human Cytomegalovirus IE1 Promotes Viral Growth and Is Negatively Regulated by SUMO  

Science Journals Connector (OSTI)

...Promotes Viral Growth and Is Negatively Regulated by SUMO Published ahead of print on 13 August 2008. Yong Ho Huh 1 Young Eui Kim 1 Eui Tae Kim 1 Jung Jin Park 1 Moon Jung Song 2 Hua Zhu 3 Gary S. Hayward 4 Jin-Hyun Ahn 1 Corresponding author. Mailing...

Yong Ho Huh; Young Eui Kim; Eui Tae Kim; Jung Jin Park; Moon Jung Song; Hua Zhu; Gary S. Hayward; Jin-Hyun Ahn

2008-08-13T23:59:59.000Z

498

Commentaries and Rejoinder to “Measuring the Impact of Negative Demand Shocks on Car Dealer Networks” by Paulo Albuquerque and Bart J. Bronnenberg  

Science Journals Connector (OSTI)

This series of discussions presents commentaries and a rejoinder on strategic and managerial issues arising from Albuquerque and Bronnenberg [Albuquerque, P., B. J. Bronnenberg. 2012. Measuring the impact of negative demand shocks on car dealer networks. ... Keywords: choice modeling, spatial modeling, structural models

Dominique M. Hanssens; Devavrat Purohit; Richard Staelin; Paulo Albuquerque; Bart J. Bronnenberg

2012-01-01T23:59:59.000Z

499

Memory Traces for Words as Revealed by the Mismatch Negativity Friedemann Pulvermuller,* Teija Kujala, Yury Shtyrov,* Jaana Simola, Hannu Tiitinen, Paavo Alku,  

E-Print Network (OSTI)

Memory Traces for Words as Revealed by the Mismatch Negativity Friedemann Pulvermu¨ller,* Teija), an automatic index of experience-dependent audi- tory memory traces, was recorded. The MMN to each syllable who did not know any Finnish. These results provide the first demonstration of the presence of memory

Coulson, Seana

500

Biofuels development in Maine: Using trees to oil the wheels of sustainability -Maine news, sports, obituaries, weather -Bangor Daily News http://bangordailynews.com/2013/03/12/opinion/biofuels-development-in-maine-using-trees-to-oil-the-wheels-of-sustain  

E-Print Network (OSTI)

Biofuels development in Maine: Using trees to oil the wheels of sustainability - Maine news, sports, obituaries, weather - Bangor Daily News http://bangordailynews.com/2013/03/12/opinion/biofuels-development-in-maine-using-trees-to-oil-the-wheels-of-sustainability/print/[3/13/2013 1:54:43 PM] Biofuels development

Thomas, Andrew