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Note: This page contains sample records for the topic "thunderstorm system crossed" 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

Thunderstorm influence on boundary layer winds  

E-Print Network [OSTI]

of this research was to develop a conceptual model of selected pre-storm ambient conditions as a function of the strength of a thunderstorm's outflow. The time of maximum rainfall during the thunderstorm in relation to the time of maximum outflow was a... selected for study from well-defined Code 3 cells (thunderstorms). The results indicated that two conceptual models were necessary to describe the pre-storm ambient conditions that led to thunderstorm development and outflow. One model contained...

Schmidt, Jill Marie

1986-01-01T23:59:59.000Z

2

Thunderstorm lightning and radar characteristics: insights on electrification and severe weather forecasting  

E-Print Network [OSTI]

thunderstorm?s dynamics and electrification processes operate. The advent of the WSR- 88D nationwide (U. S.) radar system, the National Lightning Detection Network (NLDN), and 3-dimensional lightning mapping systems (here the Lightning Detection... that are related to storm intensity and can assist in predicting severe weather. 2. Data and methodology The radar data used in this study were from the Dallas-Fort Worth WSR-88D (KFWS), obtained from the National Climatic Data Center...

Steiger, Scott Michael

2007-04-25T23:59:59.000Z

3

DOCUMENTATION OF A TORNADIC SUPERCELL THUNDERSTORM IN THE SAN JOAQUIN VALLEY, CALIFORNIA  

E-Print Network [OSTI]

DOCUMENTATION OF A TORNADIC SUPERCELL THUNDERSTORM IN THE SAN JOAQUIN VALLEY, CALIFORNIA A thesis read Documentation of a Tornadic Supercell Thunderstorm in the San Joaquin Valley, California ___________________________________________ Erwin Seibel Professor of Oceanography #12;iv DOCUMENTATION OF A TORNADIC SUPERCELL THUNDERSTORM

4

Thunderstorms in a changing climate: A cloudresolving modeling study  

E-Print Network [OSTI]

prediction of surface water and groundwater dynamics under projected climate change scenarios Thunderstorms in a changing climate: A cloudresolving modeling study Joseph Galewsky@unm.edu One of the potential impacts of a changing climate is an increase in the severity of thunderstorms

Maccabe, Barney

5

Taint-Exchange: a Generic System for Cross-process and Cross-host Taint Tracking  

E-Print Network [OSTI]

Taint-Exchange: a Generic System for Cross-process and Cross-host Taint Tracking Angeliki Zavou also utilized to track data across processes and hosts to shed light on the interaction of distributed components, but also for security purposes. This paper presents Taint-Exchange, a generic cross- process

Yang, Junfeng

6

On the relationship between brightness temperature and thunderstorm evolution  

E-Print Network [OSTI]

ACKNOWLEDGEMENTS . TABLE OF CONTENTS LIST OF FIGURES . V1 INTRODUCTION DATA CONCEPTUAL MODEL OF THUNDERSTORM. . . . . BRIGHTNESS TEMPERATURE OVERVIEW . . . 10 THUNDERSTORM OVERVIEW 13 ANALYSIS k METHODS . . RESULTS . . . . . 20 CONCLUSIONS 32 REFERENCES... Introduction The impact of tropical precipitation on the global energy budget has long been a topic of investigation. Riehl and Malkus (1958) determined that latent heat released in tropical convection provided the balance of poleward transport of energy...

Rapp, Anita Denise

2013-02-22T23:59:59.000Z

7

P1.18 THE NEED FOR AN IMPROVED DOCUMENTATION OF SEVERE THUNDERSTORMS AND TORNADOES IN SOUTH AMERICA.  

E-Print Network [OSTI]

P1.18 THE NEED FOR AN IMPROVED DOCUMENTATION OF SEVERE THUNDERSTORMS AND TORNADOES IN SOUTH AMERICA The subtropics and mid-latitudes of South America, east of the Andes Mountain Range, have been recognized storms. This is particularly crucial in South America, where mesoscale observing systems including

Doswell III, Charles A.

8

High-energy radiation from thunderstorms and lightning with LOFT  

E-Print Network [OSTI]

This is a White Paper in support of the mission concept of the Large Observatory for X-ray Timing (LOFT), proposed as a medium-sized ESA mission. We discuss the potential of LOFT for the study of high-energy radiation from thunderstorms and lightning. For a summary, we refer to the paper.

Marisaldi, M; Brandt, S; Briggs, M S; Budtz-Jørgensen, C; Campana, R; Carlson, B E; Celestin, S; Connaughton, V; Cummer, S A; Dwyer, J R; Fishman, G J; Fullekrug, M; Fuschino, F; Gjesteland, T; Neubert, T; Østgaard, N; Tavani, M

2015-01-01T23:59:59.000Z

9

An exploratory study of the nocturnal thunderstorm as observed by radar  

E-Print Network [OSTI]

, I, 7 July 1954. ~se 0521 C. ~et 2000C. 3ln Taction, This ls the study of an area of thunderstorm activity ln south central Kansas anal north ceatral Oklahoma, well removed from the frontal system shown on the surface chart in Figure S. l. a.... 3, l, b) and st 700-mb (Fig. S. l. cg while at 500 mb ths air is gute dry (Fig. 3, 1. d), From the surface through tbe 10, 000 fnot level the flow over Oklahoma snd Kansas is predominately from the south (Figs. S. 1, ~ b, cg becoming westerly...

Jacobs, Lloyd E

2012-06-07T23:59:59.000Z

10

Digitized dual wavelength radar data from a Texas thunderstorm  

E-Print Network [OSTI]

for 1600 CST (Figure 12, p 34; Figure 14, p 37) between cells 8 and Di The maximum Z value in cell D is at least greater than 35 dBZ~ but the e 4 km gradient between the BWER and cell D is only 11 dBZ. The ti. lt of the core appears to he to the left... usually are separated by at least 150 km~ while severe thunderstorms frequently are distributed on a much smaller scale Thus~ weather radars, which can scan radial distances greater than 150 km~ serve as the most useful tool to facilitate severe storm...

Radlein, Robin Ann

1977-01-01T23:59:59.000Z

11

An evaluation of lightning flash characteristics using LDAR and NLDN networks with warm season southeast Texas thunderstorms  

E-Print Network [OSTI]

will provide different signatures. For example, a summertime, low-shear thunderstorm along the Gulf Coast has a smaller volume than does a springtime mesoscale convective system. Even within a system, such as an MCS, there are differing characteristics... in figure 5.1. The network is centered at 29.79 N, 95.31 W. These sensors are arranged in an outward spiral with average baseline of 25 km between sensors and an average network radius of 75 km. Figure 5.2 provides an overview of the sensor locations...

Jurecka, Joseph William

2008-10-10T23:59:59.000Z

12

Freight Shuttle System: Cross-Border Movement of Goods  

SciTech Connect (OSTI)

The Freight Shuttle System (FSS) is designed to provide freight transportation services between those short and intermediate distance locations (within 600 miles) that are currently handling large volumes of freight traffic. Much like trucks, the FSS's transporters are autonomous: each transporter has its own propulsion and travels independently of other transporters. Inspired by railroads, each FSS transporter has steel wheels operating on a steel running surface and can carry either a standardsize freight container or an over-the-road truck trailer. However, unlike either rail or trucks, the FSS runs on an elevated, dedicated guideway to avoid the interference of other transportation systems. The objective of this report is to examine the potential viability for an alternative transportation system for trailers and containers in a multi-national, cross-border setting. The El Paso-Ciudad Juarez region serves as the environment of this analysis.

None

2011-05-31T23:59:59.000Z

13

X-ray Emission from Thunderstorms and Lightning  

ScienceCinema (OSTI)

How lightning is initiated in the relatively low electric fields inside thunderclouds and how it can then propagate for tens of kilometers through virgin air are two of the great unsolved problems in the atmospheric sciences.  Until very recently it was believed that lightning was entirely a conventional discharge, involving only low-energy (a few eV) electrons.  This picture changed completely a few years ago with the discovery of intense x-ray emission from both natural cloud-to-ground lightning and rocket-triggered lightning.  This energetic emission cannot be produced by a conventional discharge, and so the presence of x-rays strongly implies that runaway breakdown plays a role in lightning processes.  During runaway breakdown, electrons are accelerated through air to nearly the speed of light by strong electric fields.  These runaway electrons then emit bremsstrahlung x-rays and gamma-rays during collisions with air.  Indeed, the x-ray and gamma-ray emission produced by runaway breakdown near the tops of thunderstorms is bright enough to be seen from outer space, 600 km away.  As a result, the physics used for decades to describe thunderstorm electrification and lightning discharges is incomplete and needs to be revisited. 

Joseph Dwyer

2010-01-08T23:59:59.000Z

14

Pre-convective environmental conditions indicative of non-tornadic severe thunderstorm winds over Southeast Florida  

E-Print Network [OSTI]

thunderstorm wind events over Southeast Florida during the period of study. Upper-air data were obtained for several stations on and around the Florida peninsula. These stations include: Key West, Florida (EYW), West Palm Beach, Florida (PBI), Tampa Bay...PRE-CONVECTIVE ENVIRONMENTAL CONDITIONS INDICATIVE OF NON-TORNADIC SEVERE THUNDERSTORM WINDS OVER SOUTHEAST FLORIDA A Thesis by JEFFREY MICHAEL WILHELM Submitted to the Graduate College of Texas ARM University in partial fulfillment...

Wilhelm, Jeffrey Michael

1987-01-01T23:59:59.000Z

15

The warning time for cloud-to-ground lightning in isolated, ordinary thunderstorms over Houston, Texas  

E-Print Network [OSTI]

electrical circuit. The thunderstorm is efectively a batery, charging the earth?s surface with negative charge lowered due to lightning discharges. Altitudes are not to scale........................................................8 3 Positive dipole... circuit. The thunderstorm is efectively a batery, charging the earth?s surface with negative charge lowered due to lightning discharges. Altitudes are not to scale (From MacGorman and Rust 1998, p. 31). 9 To determine...

Clements, Nathan Chase

2009-05-15T23:59:59.000Z

16

REMOTE SENSING OF THE ELECTRODYNAMIC COUPLING BETWEEN THUNDERSTORM SYSTEMS  

E-Print Network [OSTI]

and the lower ionosphere through heating and ionization, producing gamma-ray bursts and optical emissions known

17

Thunderstorm characteristics of cloud-to-ground lightning at the Kennedy Space Center, Florida: a study of lightning initiation signatures as indicated by Doppler radar  

E-Print Network [OSTI]

Studies . a. Ground Flash Density b. First Stroke Peak Current . . c. Diurnal Cycle 2. Thunderstorm Characteristics a. Thunderstorm Electrification . . . . . . . b. Thunderstorm Activity . 3. Radar Studies . a. Radar Analysis b. Vertical Profiles... Mexico. Taylor (1978) also found the center of activity to be associated with the supercooled cloud layer between the regions of ? 5'C and ? 20'C. One theory of thunderstorm electrification supports the idea of an ice-related precipitation...

Gremillion, Michael Shane

1998-01-01T23:59:59.000Z

18

Enhancement of Afternoon Thunderstorm Activity by Urbanization in a Valley: Taipei TSING-CHANG CHEN AND SHIH-YU WANG  

E-Print Network [OSTI]

Enhancement of Afternoon Thunderstorm Activity by Urbanization in a Valley: Taipei TSING-CHANG CHEN for building and surface construction increased by a factor of 3. This urbanization may contribute generated by thunderstorms. These findings may explain the reduction in the water supply deficit

Chen, Tsing-Chang "Mike"

19

Downburst-producing thunderstorms in southern Germany: Radar analysis and predictability  

E-Print Network [OSTI]

Downburst-producing thunderstorms in southern Germany: Radar analysis and predictability Nikolai der Atmosphäre, Oberpfaffenhofen, 82234 Wessling, Germany b European Severe Storms Laboratory (ESSL), Münchner Str. 20, 82234 Wessling, Germany a r t i c l e i n f o a b s t r a c t Article history: Received

20

Probabilistic Forecasting of (Severe) Thunderstorms in the Netherlands Using Model Output Statistics  

E-Print Network [OSTI]

Probabilistic Forecasting of (Severe) Thunderstorms in the Netherlands Using Model Output Statistics MAURICE J. SCHMEITS, KEES J. KOK, AND DAAN H. P. VOGELEZANG Royal Netherlands Meteorological Institute (KNMI), De Bilt, Netherlands (Manuscript received 29 April 2004, in final form 7 September 2004

Schmeits, Maurice

Note: This page contains sample records for the topic "thunderstorm system crossed" 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

Probabilistic Forecasts of (Severe) Thunderstorms for the Purpose of Issuing a Weather Alarm in the Netherlands  

E-Print Network [OSTI]

in the Netherlands MAURICE J. SCHMEITS, KEES J. KOK, DAAN H. P. VOGELEZANG, AND RUDOLF M. VAN WESTRHENEN Royal Netherlands Meteorological Institute (KNMI), De Bilt, Netherlands (Manuscript received 12 December 2007 for severe thunderstorms, based on high total lightning intensity, should be issued in the Netherlands

Schmeits, Maurice

22

Preoperational test report, cross-site transfer water flush system (POTP-001)  

SciTech Connect (OSTI)

This report documents the results of the testing performed per POTP-001, for the Cross-Site Transfer Water Flush System. (HNF-1552, Rev. 0) The Flush System consists of a 47,000 gallon tank (302C), a 20 hp pump, two 498kW heaters, a caustic addition pump, various valves, instruments, and piping. The purpose of this system is to provide flush water at 140 F, 140gpm, and pH 11-12 for the Cross-Site Transfer System operation.

Parsons, G.L.

1998-02-20T23:59:59.000Z

23

Cross-section library and processing techniques within the SCALE system  

SciTech Connect (OSTI)

A summary of each of the SCALE system features involved in problem-dependent cross section processing is presented. These features include criticality libraries, shielding libraries, the Standard Composition Library, the SCALE functional modules: BONAMI-S, NITAWL-S, XSDRNPM-S, ICE-S, and the Material Information Processor. The automated procedure for cross-section processing is described with examples. 15 refs.

Westfall, R.M.

1986-01-01T23:59:59.000Z

24

Safe Intersections: At the Crossing of Hybrid Systems and Verification Sarah M. Loos and Andre Platzer  

E-Print Network [OSTI]

scenarios may be distributed hybrid systems [21] when there is a multi-agent situation with mul- tiple carsSafe Intersections: At the Crossing of Hybrid Systems and Verification Sarah M. Loos and Andr and risks in ground trans- portation, e.g., by making cars aware of their environment and regulating speed

Platzer, André

25

Validity of Hansen-Roach cross sections in low-enriched uranium systems  

SciTech Connect (OSTI)

Within the nuclear criticality safety community, the Hansen-Roach 16 group cross section set has been the standard'' for use in k{sub eff} calculations over the past 30 years. Yet even with its widespread acceptance, there are still questions about its validity and adequacy, about the proper procedure for calculating the potential scattering cross section, {sigma}{sub p}, for uranium and plutonium, and about the concept of resonance self shielding and its impact on cross sections. This paper attempts to address these questions. It provides a brief background on the Hansen-Roach cross sections. Next is presented a review of resonances in cross sections, self shielding of these resonances, and the use of {sigma}{sub p} to characterize resonance self shielding. Three prescriptions for calculating {sigma}{sub p} are given. Finally, results of several calculations of k{sub eff} on low-enriched uranium systems are provided to confirm the validity of the Hansen-Roach cross sections when applied to such systems.

Busch, R.D. (New Mexico Univ., Albuquerque, NM (United States)); O'Dell, R.D. (Los Alamos National Lab., NM (United States))

1991-01-01T23:59:59.000Z

26

Mesoscale convective complex vs. non-mesoscale convective complex thunderstorms: a comparison of selected meteorological variables  

E-Print Network [OSTI]

MESOSCALE CONVECTIVE CCMPLLX VS. NON-MESOSCALE CONVECTIVE COMPLEX THUNDERSTORMS: A COMPARISON OF SELECTED METEOROLOGICAL VARIABLES A Thesis MICHAkL EUGENE JJOOFARD Submitted to the Graduate College of Texas AJkM University in partial... by MICHAEL EUGENE HOOFARD Approved as to style and content by: a ter . enry (Chairman of Committee) %~5 44 c5 c usan gur c (Member) ona . oc ing (Member) ames . cogg (Head of Department) August 1986 ABSTRACT Nesoscale Convective Complex vs. Non...

Hoofard, Michael Eugene

1986-01-01T23:59:59.000Z

27

Some effects of range upon AN/CPS-9 radar reflectivities in thunderstorms  

E-Print Network [OSTI]

SOMB BFFBCTS OF RANGE UPON AN/CPS-9 RADAR RBFLECTIVITIBS IN THUNDBRSTORMS A Thesis Tommy Eugene Sanford Submitted to the Graduate School of the Agricultural and Mechanical College of Texas in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE January 1961 Major Subject: Meteorology SOME EFFECI'S OF RANGE UPON AN/CPS-9 RADAR REFLECTIVITIES IN THUNDERSTORMS A Thesis Tommy Eugene Sanford Approved as to style and content by: (Chairman of Committe ) 4~4 (Head...

Sanford, Tom E

1961-01-01T23:59:59.000Z

28

U-217: Red Hat Certificate System Bugs Let Remote Users Conduct Cross-Site Scripting and Denial of Service Attacks  

Broader source: Energy.gov [DOE]

Two vulnerabilities were reported in Red Hat Certificate System. A remote user can conduct cross-site scripting attacks. A remote authenticated user can revoke the CA certificate.

29

Methods and systems for Raman and optical cross-interrogation in flow-through silicon membranes  

DOE Patents [OSTI]

Cross-interrogating photonic detection systems and methods are shown. A flow through photonic crystal membrane with a surface enhanced Raman scattering (SERS) substrate is provided with pores which are distributed along multiple regions. The pores of one region have walls to which a first type of target specific anchor can be attached, while pores of another region have walls to which a second type of target specific anchor can be attached. An optical arrangement out-of-plane to the SERS substrate is also provided for enhanced sensitivity and identification of target organisms.

Bond, Tiziana C.; Letant, Sonia E.

2014-09-09T23:59:59.000Z

30

Waste minimization plan construction and operation of the replacement cross-site transfer system, project W-058  

SciTech Connect (OSTI)

This report addresses the research and development of a waste minimization plan for the construction and operation of Project W-058, Replacement of the Cross-Site Transfer System, on the Hanford Site. The plan is based on Washington Administrative Code (WAC) 173-307, Plans. The waste minimization plan identifies areas where pollution prevention/waste minimization principles can be incorporated into the construction and operation of the cross-site transfer system.

Boucher, T.D.

1996-04-01T23:59:59.000Z

31

Validation of KENO V.a with ENDF/B-V cross sections for {sup 233}U systems  

SciTech Connect (OSTI)

A multigroup Monte carlo code KENO V.a is maintained at the ORNL as part of the standardized cmoputer analysis for licensing evaluation (SCALE) system. Included in the SCALE system are the 238-and 44-energy group ENDF/B-V cross section libraries. The purpose of this work was to validate the ENDF/B-V and KENO V.a for uranium 233 systems.

Dunn, M.E.; Basoglu, B.; Bentley, C.L.; Haught, C.; Plaster, M.J.; Wilkinson, A.D.; Yamamoto, T.; Dodds, H.L. [Univ. of Tennessee, Knoxville, TN (United States)

1994-12-31T23:59:59.000Z

32

The Mount Perkins block, northwestern Arizona: An exposed cross section of an evolving, preextensional to synextensional magmatic system  

E-Print Network [OSTI]

,  Daniel L. Feuerbach, 1 Mark K. Reagan, 1 Rodney V. Metcalf, 2 Phil Gans, 3 and J. D. Walker 4 Abstract. The steeply tilted Mount Perkins block, northwestern Arizona, exposes a cross section of a magmatic system that evolved through the onset...

Faulds, James E.; Feuerbach, Daniel L.; Reagan, Mark K.; Metcalf, Rodney V.; Gans, Phil; Walker, J. Douglas

1995-08-10T23:59:59.000Z

33

Border Crossing Modeling and Analysis: A Non-Stationary Dynamic Reallocation Methodology For Terminating Queueing Systems  

E-Print Network [OSTI]

The United States international land boundary is a volatile, security intense area. In 2010, the combined trade was $918 billion within North American nations, with 80% transported by commercial trucks. Over 50 million commercial vehicles cross...

Moya, Hiram

2012-10-19T23:59:59.000Z

34

Analysis of improvements in system efficiency and safety at highway-railroad-pedestrian grade crossings  

E-Print Network [OSTI]

The purpose of this project was to perform micro-simulation analyses on intersections near Highway-Railroad Grade Crossings to determine if controlling mean train speed and train speed variability would improve safety and reduce delays. The first...

Tydlacka, Jonathan Michael

2013-02-22T23:59:59.000Z

35

Thunderstorm and Lightning Studies using the FORTE Optical Lightning System (FORTE/OLS)  

SciTech Connect (OSTI)

Preliminary observations of simultaneous RF and optical emissions from lightning as seen by the FORTE spacecraft are presented. RF/optical pairs of waveforms are routinely collected both as individual lightning events and as sequences of events associated with cloud-to-ground (CG) and intra-cloud (IC) flashes. CG pulses can be distinguished from IC pulses based on the properties of the RF and optical waveforms, but mostly based on the associated RF spectrograms. The RF spectrograms are very similar to previous ground-based VHF observations of lightning and show signatures associated with return strokes, stepped and dart leaders, and attachment processes,. RF emissions are observed to precede the arrival of optical emissions at the satellite by a mean value of 280 microseconds. The dual phenomenology nature of these observations are discussed in terms of their ability to contribute to a satellite-based lightning monitoring mission.

Argo, P.; Franz, R.; Green, J.; Guillen, J.L.; Jacobson, A.R.; Kirkland, M.; Knox, S.; Spalding, R.; Suszcynsky, D.M.

1999-02-01T23:59:59.000Z

36

Probabilistic 0-12 h forecasts of (severe) thunderstorms in the Netherlands Maurice Schmeits (schmeits@knmi.nl), Kees Kok, Daan Vogelezang and Rudolf van Westrhenen  

E-Print Network [OSTI]

Probabilistic 0-12 h forecasts of (severe) thunderstorms in the Netherlands Maurice Schmeits (schmeits@knmi.nl), Kees Kok, Daan Vogelezang and Rudolf van Westrhenen Royal Netherlands Meteorological Institute (KNMI), De Bilt, The Netherlands In this project the technique of Model Output Statistics (MOS)1

Schmeits, Maurice

37

Spin-dependence of the electron scattering cross section by a magnetic layer system and the magneto-resistance  

SciTech Connect (OSTI)

The authors present a theoretical model for calculating the spin-dependent cross section of the scattering of electrons by a magnetic layer system. The model demonstrates that the cross sections of the scattering are different for spin up and spin down electrons. The model assumes that the electrical resistivity in a conductor is proportional to the scattering cross section of the electron in it. It is believed to support the two channel mechanism in interpreting magneto-resistance (MR). Based on the model without considering the scattering due to the interfacial roughness and the spin flipping scattering, the authors have established a relationship between MR and the square of the magnetic moment in the bulk sample without considering the scattering due to the interfacial roughness and the spin flipping scattering. It can also qualitatively explain the MR difference between the current in plane (CIP) and current perpendicular to the plane (CPP) configurations. The predictions by the model agree well with the experimental findings.

Wang, J.T.; Tang, F.; Brown, W.D.; Bagayoko, D. (Southern Univ. and A and M College, Baton Rouge, LA (United States). Physics Dept.)

1998-12-20T23:59:59.000Z

38

Optical cross-connect system based on the White cell and three-state microelectromechanical system: experimental  

E-Print Network [OSTI]

JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, VOL. 12, NO. 6, DECEMBER 2003 761 Etch Rates or in the fabrication of microelectromechanical systems and integrated circuits were prepared: single-crystal silicon in future fabrication of microelectromechanical systems (MEMS) and integrated circuits (ICs) (approximately

Anderson, Betty Lise

39

A field evaluation of experimental passive railroad-highway grade crossing warning systems  

E-Print Network [OSTI]

. 18 18 23 28 40 40 42 42 47 50 CHAPI'ER V CONCLUSIONS CONCLUSIONS RECOMMENDATIONS Page 59 59 60 REFERENCES 62 APPENDIX A FIELD DATA FORMS . APPENDIX B TEST SITE DESCRIPTIONS APPENDIX C SPEED GRAPHS AND SUMMARIES... TO TRAINS Sign Page Figure 4. Experimental Sign System with YIELD TO TRAINS Sign . . . . . 20 Figure 5. Experimental Sign System with LOOK FOR TRAINS Sign . . . . 22 Figure 6. Texas Counties Selected for Study Sites Figure 7. Results of Driver Opinion...

Beitler, Michael Morgan

2012-06-07T23:59:59.000Z

40

Extended Optical Model Analyses of Elastic Scattering, Direct Reaction, and Fusion Cross Sections for the 9Be + 208Pb System at Near-Coulomb-Barrier Energies  

E-Print Network [OSTI]

Based on the extended optical model approach in which the polarization potential is decomposed into direct reaction (DR) and fusion parts, simultaneous $\\chi^{2}$ analyses are performed for elastic scattering, DR, and fusion cross section data for the $^{9}$Be+$^{208}$Pb system at near-Coulomb-barrier energies. Similar $\\chi^{2}$ analyses are also performed by only taking into account the elastic scattering and fusion data as was previously done by the present authors, and the results are compared with those of the full analysis including the DR cross section data as well. We find that the analyses using only elastic scattering and fusion data can produce very consistent and reliable predictions of cross sections particularly when the DR cross section data are not complete. Discussions are also given on the results obtained from similar analyses made earlier for the $^{9}$Be+$^{209}$Bi system.

W. Y. So; S. W. Hong; B. T. Kim; T. Udagawa

2005-09-27T23:59:59.000Z

Note: This page contains sample records for the topic "thunderstorm system crossed" 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

Status report on multigroup cross section generation code development for high-fidelity deterministic neutronics simulation system.  

SciTech Connect (OSTI)

Under the fast reactor simulation program launched in April 2007, development of an advanced multigroup cross section generation code was initiated in July 2007, in conjunction with the development of the high-fidelity deterministic neutron transport code UNIC. The general objectives are to simplify the existing multi-step schemes and to improve the resolved and unresolved resonance treatments. Based on the review results of current methods and the fact that they have been applied successfully to fast critical experiment analyses and fast reactor designs for last three decades, the methodologies of the ETOE-2/MC{sup 2}-2/SDX code system were selected as the starting set of methodologies for multigroup cross section generation for fast reactor analysis. As the first step for coupling with the UNIC code and use in a parallel computing environment, the MC{sup 2}-2 code was updated by modernizing the memory structure and replacing old data management package subroutines and functions with FORTRAN 90 based routines. Various modifications were also made in the ETOE-2 and MC{sup 2}-2 codes to process the ENDF/B-VII.0 data properly. Using the updated ETOE-2/MC{sup 2}-2 code system, the ENDF/B-VII.0 data was successfully processed for major heavy and intermediate nuclides employed in sodium-cooled fast reactors. Initial verification tests of the MC{sup 2}-2 libraries generated from ENDF/B-VII.0 data were performed by inter-comparison of twenty-one group infinite dilute total cross sections obtained from MC{sup 2}-2, VIM, and NJOY. For almost all nuclides considered, MC{sup 2}-2 cross sections agreed very well with those from VIM and NJOY. Preliminary validation tests of the ENDF/B-VII.0 libraries of MC{sup 2}-2 were also performed using a set of sixteen fast critical benchmark problems. The deterministic results based on MC{sup 2}-2/TWODANT calculations were in good agreement with MCNP solutions within {approx}0.25% {Delta}{rho}, except a few small LANL fast assemblies. Relative to the MCNP solution, the MC{sup 2}-2/TWODANT results overestimated the multiplication factor by 0.22 {approx} 0.35% {Delta}{rho} for these small systems with very hard neutron spectrum. Comparisons of measured and calculated values for the fission reaction rate ratios of Godiva and Jezebel assemblies also showed that the MC{sup 2}-2/TWODANT results agreed well with measurements within 2.7%. From a series of methodology review and ENDF/B-VII.0 data processing, several improvement needs to enhance accuracy were also identified for the ETOE-2/MC{sup 2}-2 code system, including the multigroup slowing-down solution for whole-energy range, proper treatment for anisotropy of inelastic scattering, improved evaluation of inelastic and high-order anisotropic scattering source in RABANL calculations.

Yang, W. S.; Lee, C. H. (Nuclear Engineering Division) [Nuclear Engineering Division

2008-05-16T23:59:59.000Z

42

Design and producing of fine-group cross section library HENDL3.0/FG for subcritical system  

SciTech Connect (OSTI)

To improve the accuracy of the neutron analyses for subcritical system with thermal fission blanket, a coupled neutron and photon (315 n + 42{gamma}) fine-group cross section library HENDL3.0/FG based on ENDF/B-VII, JEFF3.1 and JENDL3.3 was produced by FDS team. In order to test the availability and reliability of the HENDL3.0/FG data library, shielding and critical safety benchmarks were performed with VisualBUS code. The testing results indicated that the discrepancy between calculation and experimental values of nuclear parameters fell in a reasonable range. It showed that the nuclear data library had accuracy and availability. (authors)

Zou, J.; Zeng, Q.; Xu, D.; Hu, L.; Long, P. [Inst. of Nuclear Energy Safety Technology, Chinese Academy of Sciences, Hefei, Anhui, 230031 (China); School of Nuclear Science and Technology, Univ. of Science and Technology of China, No.350 Shushanhu Road, Shushan District, Hefei, Anhui, 230031 (China)

2012-07-01T23:59:59.000Z

43

Validation of KENO V.a with ENDF/B-V cross sections for {sup 233}U systems  

SciTech Connect (OSTI)

The multigroup Monte Carlo code KENO V.a and the 238- and 44-energy-group ENDF/B-V cross-section libraries were validated for {sup 233}U systems. Fifty-one critical experiments involving {sup 233}UO{sub 2}(NO{sub 3}){sub 2}, {sup 233}UO{sub 2}F{sub 2}, or {sup 233}U metal were selected for the validation. The H/{sup 233}U ratios for the experiments range from 0 to 1986. Each experiment was modeled with KENO V.a, and the effective multiplication factor k{sub eff} was calculated for each system using the 44- and 238-group ENDF/B-V, the 27- and 218-group ENDF/B-IV, and the 16-group Hansen-Roach cross-section libraries. The mean calculated k{sub eff} for all experiments using the 44- and 238-group libraries is 1.0090 {+-} 0.0021 and 1.0064 {+-} 0.0020, respectively. For comparison, the mean calculated k{sub eff} using the 27-, 218-, and 16-group libraries is 1.0142 {+-} 0.0038, 1.0125 {+-} 0.0038, and 0.9991 {+-} 0.0019, respectively. In general, an improvement exists in the agreement between the calculated k{sub eff}`s and the experimental results (i.e., k{sub eff} = 1.0) obtained with the newer ENDF/B-V libraries relative to ENDF/B-IV. This study is pertinent to {sup 233}U storage outside of the reactor.

Dunn, M.E.; Basoglu, B.; Bentley, C.L.; Plaster, M.J.; Wilkinson, A.D.; Dodds, H.L. [Univ. of Tennessee, Knoxville, TN (United States). Nuclear Engineering Dept.; Haught, C. [Martin Marietta Energy Systems, Piketon, OH (United States); Yamamoto, T. [Japan Atomic Energy Research Inst., Tokai (Japan)

1995-08-01T23:59:59.000Z

44

Macro-System Model: A Federated Object Model for Cross-Cutting Analysis of Hydrogen Production, Delivery, Consumption and Associated Emissions; Preprint  

SciTech Connect (OSTI)

It is commonly accepted that the introduction of hydrogen as an energy carrier for light-duty vehicles involves concomitant technological development of infrastructure elements, such as production, delivery, and consumption, all associated with certain emission levels. To analyze these at a system level, the suite of corresponding models developed by the United States Department of Energy and involving several national laboratories is combined in one macro-system model (MSM). The macro-system model is being developed as a cross-cutting analysis tool that combines a set of hydrogen technology analysis models. Within the MSM, a federated simulation framework is used for consistent data transfer between the component models. The framework is built to suit cross-model as well as cross-platform data exchange and involves features of 'over-the-net' computation.

Ruth, M.; Diakov, V.; Goldsby, M. E.; Sa, T. J.

2010-12-01T23:59:59.000Z

45

Measurement of the 33S(?,p)36Cl cross section: Implications for production of 36Cl in the early Solar System  

E-Print Network [OSTI]

Short-lived radionuclides (SLRs) with lifetimes \\tau < 100 Ma are known to have been extant when the Solar System formed over 4.5 billion years ago. Identifying the sources of SLRs is important for understanding the timescales of Solar System formation and processes that occurred early in its history. Extinct 36Cl (t_1/2 = 0.301 Ma) is thought to have been produced by interaction of solar energetic particles (SEPs), emitted by the young Sun, with gas and dust in the nascent Solar System. However, models that calculate SLR production in the early Solar System (ESS) lack experimental data for the 36Cl production reactions. We present here the first measurement of the cross section of one of the main 36Cl production reactions, 33S(\\alpha,p)36Cl, in the energy range 0.70 - 2.42 MeV/A. The cross section measurement was performed by bombarding a target and collecting the recoiled 36Cl atoms produced in the reaction, chemically processing the samples, and measuring the 36Cl/Cl ratio of the activated samples with accelerator mass spectrometry (AMS). The experimental results were found to be systematically higher than the cross sections used in previous local irradiation models and other Hauser-Feshbach calculated predictions. However, the effects of the experimentally measured cross sections on the modeled production of 36Cl in the early Solar System were found to be minimal. Reactions channels involving S targets dominate 36Cl production, but the astrophysical event parameters can dramatically change each reactions' relative contribution.

Matthew Bowers; Yoav Kashiv; William Bauder; Mary Beard; Philippe Collon; Wenting Lu; Karen Ostdiek; Daniel Robertson

2013-10-10T23:59:59.000Z

46

Simultaneous Optical Model Analyses of Elastic Scattering, Breakup, and Fusion Cross Section Data for the $^{6}$He + $^{209}$Bi System at Near-Coulomb-Barrier Energies  

E-Print Network [OSTI]

Based on an approach recently proposed by us, simultaneous $\\chi^{2}$-analyses are performed for elastic scattering, direct reaction (DR) and fusion cross sections data for the $^{6}$He+$^{209}$Bi system at near-Coulomb-barrier energies to determine the parameters of the polarization potential consisting of DR and fusion parts. We show that the data are well reproduced by the resultant potential, which also satisfies the proper dispersion relation. A discussion is given of the nature of the threshold anomaly seen in the potential.

B. T. Kim; W. Y. So; S. W. Hong; T. Udagawa

2001-11-22T23:59:59.000Z

47

Negative index of refraction in a four-level system with magnetoelectric cross coupling and local field corrections  

SciTech Connect (OSTI)

This research focuses on a coherently driven four-level atomic medium with the aim of inducing a negative index of refraction while taking into consideration local field corrections as well as magnetoelectric cross coupling (i.e.,chirality) within the material's response functions. Two control fields are used to render the medium transparent for a probe field which simultaneously couples to an electric and a magnetic dipole transition, thus allowing one to test the permittivity and permeability of the material at the same time. Numerical simulations show that a negative index of refraction with low absorption can be obtained for a range of probe detunings while depending on number density and the ratio between the intensities of the control fields.

Bello, F. [Departament de Fisica, Universitat Autonoma de Barcelona, E-08193 Bellaterra (Spain)

2011-07-15T23:59:59.000Z

48

Final Report on Utilization of TRU TRISO Fuel as Applied to HTR Systems Part II: Prismatic Reactor Cross Section Generation  

SciTech Connect (OSTI)

The deep-burn prismatic high temperature reactor is made up of an annular core loaded with transuranic isotopes and surrounded in the center and in the periphery by reflector blocks in graphite. This disposition creates challenges for the neutronics compared to usual light water reactor calculation schemes. The longer mean free path of neutrons in graphite affects the neutron spectrum deep inside the blocks located next to the reflector. The neutron thermalisation in the graphite leads to two characteristic fission peaks at the inner and outer interfaces as a result of the increased thermal flux seen in those assemblies. Spectral changes are seen at least on half of the fuel blocks adjacent to the reflector. This spectral effect of the reflector may prevent us from successfully using the two step scheme -lattice then core calculation- typically used for light water reactors. We have been studying the core without control mechanisms to provide input for the development of a complete calculation scheme. To correct the spectrum at the lattice level, we have tried to generate cross-sections from supercell calculations at the lattice level, thus taking into account part of the graphite surrounding the blocks of interest for generating the homogenised cross-sections for the full-core calculation. This one has been done with 2 to 295 groups to assess if increasing the number of groups leads to more accurate results. A comparison with a classical single block model has been done. Both paths were compared to a reference calculation done with MCNP. It is concluded that the agreement with MCNP is better with supercells, but that the single block model remains quite close if enough groups are kept for the core calculation. 26 groups seems to be a good compromise between time and accu- racy. However, some trials with depletion have shown huge variations of the isotopic composition across a block next to the reflector. It may imply that at least an in- core depletion for the number density calculation may be necessary in the complete calculation scheme.

Vincent Descotes

2011-03-01T23:59:59.000Z

49

Extended Optical Model Analyses of Elastic Scattering and Fusion Cross Sections for 6Li + 208Pb System at Near-Coulomb-Barrier Energies by using Folding Potential  

E-Print Network [OSTI]

Based on the extended optical model approach in which the polarization potential is decomposed into direct reaction (DR) and fusion parts, simultaneous $\\chi^{2}$ analyses are performed for elastic scattering and fusion cross section data for the $^{6}$Li+$^{208}$Pb system at near-Coulomb-barrier energies. A folding potential is used as the bare potential. It is found that the real part of the resultant DR part of the polarization potential is repulsive, which is consistent with the results from the Continuum Discretized Coupled Channel (CDCC) calculations and the normalization factors needed for the folding potentials. Further, it is found that both DR and fusion parts of the polarization potential satisfy separately the dispersion relation.

W. Y. So; T. Udagawa; K. S. Kim; S. W. Hong; B. T. Kim

2006-12-13T23:59:59.000Z

50

Indirect determination of the {sup 230}Th(n,f) and {sup 231}Th(n,f) cross sections for thorium-based nuclear energy systems  

SciTech Connect (OSTI)

The surrogate ratio method (SRM) was employed in the first experimental determination of the {sup 231}Th(n,f) cross section, relative to the {sup 235}U(n,f) cross section, over an equivalent neutron energy range of 360 keV to 10 MeV. The {sup 230}Th(n,f) cross section was also deduced using the SRM, relative to the {sup 234}U(n,f) cross section, over an equivalent neutron energy range of 220 keV to 25 MeV. The desired compound nuclei were populated using ({sup 3}He,{sup 3}He') and ({sup 3}He,{alpha}) reactions on targets of {sup 232}Th and {sup 236}U and relative fission decay probabilities were measured. The surrogate {sup 230,231}Th(n,f) cross sections were compared to cross section evaluations and directly-measured experimental data, where available.

Goldblum, B. L.; Stroberg, S. R.; Angell, C.; Swanberg, E. [Department of Nuclear Engineering, University of California, Berkeley, California 94720 (United States); Allmond, J. M. [Department of Physics, University of Richmond, Virginia 23173 (United States); Bernstein, L. A.; Bleuel, D. L.; Burke, J. T.; Scielzo, N. D.; Wiedeking, M. [Lawrence Livermore National Laboratory, Livermore, California 94551 (United States); Gibelin, J. [GANIL (DSM-CEA/IN2P3-CNRS), B. P. 55027, F-14076 Caen Cedex 5 (France); Phair, L. [Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Norman, E. B. [Department of Nuclear Engineering, University of California, Berkeley, California 94720 (United States); Lawrence Livermore National Laboratory, Livermore, California 94551 (United States); Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

2009-10-15T23:59:59.000Z

51

1 x N^2 wavelength-selective switch with two cross-scanning one-axis analog micromirror arrays in a 4-f optical system  

E-Print Network [OSTI]

optical microelectromechanical systems (MEMS), optical ?berinclude optical microelectromechanical systems (MEMS),

Tsai, J C; Huang, STY; Hah, D; Wu, Ming C

2006-01-01T23:59:59.000Z

52

Systems Biology Model of Interactions Between Tissue Growth Factors and DNA Damage Pathways: Low Dose Response and Cross-Talk in TGFbeta and ATM Signaling  

SciTech Connect (OSTI)

The etiology of radiation carcinogenesis has been described in terms of aberrant changes that span several levels of biological organization. Growth factors regulate many important cellular and tissue functions including apoptosis, differentiation and proliferation. A variety of genetic and epigenetic changes of growth factors have been shown to contribute to cancer initiation and progression. It is known that cellular and tissue damage to ionizing radiation is in part initiated by the production of reactive oxygen species, which can activate cytokine signaling, and the DNA damage response pathways, most notably the ATM signaling pathway. Recently the transforming growth factor ? (TGF?) pathway has been shown to regulate or directly interact with the ATM pathway in the response to radiation. The relevance of this interaction with the ATM pathway is not known although p53 becomes phosphorylated and DNA damage responses are involved. However, growth factor interactions with DNA damage responses have not been elucidated particularly at low doses and further characterization of their relationship to cancer processes is warranted. Our goal will be to use a systems biology approach to mathematically and experimentally describe the low dose responses and cross-talk between the ATM and TGF? pathways initiated by low and high LET radiation. We will characterize ATM and TGF? signaling in epithelial and fibroblast cells using 2D models and ultimately extending to 3D organotypic cell culture models to begin to elucidate possible differences that may occur for different cell types and/or inter-cellular communication. We will investigate the roles of the Smad and Activating transcription factor 2 (ATF2) proteins as the potential major contributors to cross- talk between the TGF? and ATM pathways, and links to cell cycle control and/or the DNA damage response, and potential differences in their responses at low and high doses. We have developed various experimental approaches to apply to these problems using confocal microscopy and flow cytometry to detail changes at low dose/dose-rate in order to understand individual cell responses, and will establish our mathematical models based on the experimental findings resulting from changes in DNA repair, apoptosis and proliferation.

O'Neill, Peter [University of Oxford; Anderson, Jennifer [University of Oxford

2014-10-02T23:59:59.000Z

53

Delay impacts of light rail transit grade crossings  

E-Print Network [OSTI]

with the cross i n g control operating independently of the other parts of the signal system. The LRT vehicles recei ve unconditional priority at a 1 1 times. The LRT system in this anal ysi s was depicted as operating on semi -exclusive right-of-way. Median... . 25 Figure 9. Isolated Crossing-Effect of Crossing Clearance Time . 26 Figure 10. Isolated Crossing-Effect of Roadway Cross-Section . . . 28 Figure 11. Isolated Crossing-Delay per Vehicle vs. Crossing Volume-to-Capacity Ratio-Scatter Plot . 30...

Cline, James Curtiss

1986-01-01T23:59:59.000Z

54

A classification of Texas thunderstorms according to their cloud-to-ground lightning characteristics during spring 1993  

E-Print Network [OSTI]

OF FIGURES Figure Page 1 Study region, depicted by dotted area. 10 2 Study area DF sites with nominal 400 km range rings. . . . 10 3 Depiction of "inland" and "coastal" areas of the study region. . . . . . 16 Lightning plots associated with a cold ji... onral storm system (lefl) and a rrough storm system (right), separated by the heavy black line. . . . . . . . , . . . . . . . 19 Ground flash density contours in flashes km r for (a) April-June 1993, (b) April 1993, (c) May 1993, and (d) June 1993. 25...

McMillan, Stephen Randall

1995-01-01T23:59:59.000Z

55

Spin Hamilton Operators, Symmetry Breaking, Energy Level Crossing and Entanglement  

E-Print Network [OSTI]

We study finite-dimensional product Hilbert spaces, coupled spin systems, entanglement and energy level crossing. The Hamilton operators are based on the Pauli group. We show that swapping the interacting term can lead from unentangled eigenstates to entangled eigenstates and from an energy spectrum with energy level crossing to avoided energy level crossing.

Willi-Hans Steeb; Yorick Hardy; Jacqueline de Greef

2011-10-19T23:59:59.000Z

56

Validation of the Monte Carlo criticality program KENO IV and the Hansen-Roach sixteen-energy-group-cross sections for high-assay uranium systems. [KENO IV criticality code  

SciTech Connect (OSTI)

Validation of the Monte Carlo criticality code, KENO IV, and the Hansen-Roach sixteen-energy-group cross sections was accomplished by calculating the effective neutron multiplication constant, k/sub eff/, of 29 experimentally critical assemblies which had uranium enrichments of 92.6% or higher in the uranium-235 isotope. The experiments were chosen so that a large variety of geometries and of neutron energy spectra were covered. Problems, calculating the k/sub eff/ of systems with high-uranium-concentration uranyl nitrate solution that were minimally reflected or unreflected, resulted in the separate examination of five cases.

Handley, G. R.; Masters, L. C.; Stachowiak, R. V.

1981-04-10T23:59:59.000Z

57

2012 Annual Merit Review Results Report - Cross-Reference of...  

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

Review Results Report - Cross-reference of Project Investigators, Projects, and Organizations 2011 Annual Merit Review Results Report - Hybrid and Vehicle Systems Technologies...

58

2013 Annual Merit Review Results Report - Cross-Reference of...  

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

Review Results Report - Cross-reference of Project Investigators, Projects, and Organizations 2011 Annual Merit Review Results Report - Hybrid and Vehicle Systems Technologies...

59

Validation of SCALE 4. 0 -- CSAS25 module and the 27-group ENDF/B-IV cross-section library for low-enriched uranium systems  

SciTech Connect (OSTI)

A version of KENO V.a and the 27-group library in SCALE-4.0 were validated for use in evaluating the nuclear criticality safety of low-enriched uranium systems. A total of 59 critical systems were analyzed. A statistical analysis of the results was performed, and subcritical acceptanced criteria are established.

Jordan, W.C.

1993-02-01T23:59:59.000Z

60

Validation of SCALE 4.0 -- CSAS25 module and the 27-group ENDF/B-IV cross-section library for low-enriched uranium systems  

SciTech Connect (OSTI)

A version of KENO V.a and the 27-group library in SCALE-4.0 were validated for use in evaluating the nuclear criticality safety of low-enriched uranium systems. A total of 59 critical systems were analyzed. A statistical analysis of the results was performed, and subcritical acceptanced criteria are established.

Jordan, W.C.

1993-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "thunderstorm system crossed" 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

Choosing between Blue Cross plans...  

E-Print Network [OSTI]

Choosing between Blue Cross plans... ...when you have Medicare PresentedPresented By Glenn. Medicare and UC II. Medicare and Anthem Blue Cross III. Plan Comparisons · Pros/Cons · Medical coverage will automatically be enrolled in Part D by Blue Cross No additional Part D premium · Blue Cross members have

Burke, Peter

62

Extended Optical Model Analyses of Elastic Scattering and Fusion Cross Section Data for the 7Li+208Pb System at Near-Coulomb-Barrier Energies using the Folding Potential  

E-Print Network [OSTI]

Simultaneous $\\chi^{2}$ analyses previously made for elastic scattering and fusion cross section data for the $^{6}$Li+$^{208}$Pb system is extended to the $^{7}$Li+$^{208}$Pb system at near-Coulomb-barrier energies based on the extended optical model approach, in which the polarization potential is decomposed into direct reaction (DR) and fusion parts. Use is made of the double folding potential as a bare potential. It is found that the experimental elastic scattering and fusion data are well reproduced without introducing any normalization factor for the double folding potential and that both the DR and fusion parts of the polarization potential determined from the $\\chi^{2}$ analyses satisfy separately the dispersion relation. Further, we find that the real part of the fusion portion of the polarization potential is attractive while that of the DR part is repulsive except at energies far below the Coulomb barrier energy. A comparison is made of the present results with those obtained from the Continuum Discretized Coupled Channel (CDCC) calculations and a previous study based on the conventional optical model with a double folding potential. We also compare the present results for the $^7$Li+$^{208}$Pb system with the analysis previously made for the $^{6}$Li+$^{208}$Pb system.

W. Y. So; T. Udagawa; K. S. Kim; S. W. Hong; B. T. Kim

2007-06-05T23:59:59.000Z

63

Extended Optical Model Analyses of Elastic Scattering and Fusion Cross Section Data for the 9Be+28Si, 144Sm, and 208Pb Systems at Near-Coulomb-Barrier Energies using Double Folding Potential  

E-Print Network [OSTI]

Based on the extended optical model with the double folding potential, in which the polarization potential is decomposed into direct reaction (DR) and fusion parts, simultaneous $\\chi^{2}$ analyses are performed of elastic scattering and fusion cross section data for the $^{9}$Be+$^{28}$Si, $^{144}$Sm, and $^{208}$Pb systems at near-Coulomb-barrier energies. We find that the real part of the resultant DR part of the polarization potential is systematically repulsive for all the targets considered, which is consistent with the results deduced from the Continuum Discretized Coupled Channel (CDCC) calculations taking into account the polarization effects due to breakup. Further, it is found that both DR and fusion parts of the extracted polarization potentials satisfy the dispersion relation.

W. Y. So; T. Udagawa; K. S. Kim; S. W. Hong; B. T. Kim

2010-03-14T23:59:59.000Z

64

Extended Optical Model Analyses of Elastic Scattering and Fusion Cross Section Data for the $^{12}$C+$^{208}$Pb System at Near-Coulomb-Barrier Energies by using a Folding Potential  

E-Print Network [OSTI]

Simultaneous $\\chi^{2}$ analyses are performed for elastic scattering and fusion cross section data for the $^{12}$C+$^{208}$Pb system at near-Coulomb-barrier energies by using the extended optical model approach in which the polarization potential is decomposed into direct reaction (DR) and fusion parts. Use is made of the double folding potential as a bare potential. It is found that the experimental elastic scattering and fusion data are well reproduced without introducing any normalization factor for the double folding potential and also that both DR and fusion parts of the polarization potential determined from the $\\chi^{2}$ analyses satisfy separately the dispersion relation. Furthermore, it is shown that the imaginary parts of both DR and fusion potentials at the strong absorption radius change very rapidly, which results in a typical threshold anomaly in the total imaginary potential as observed with tightly bound projectiles such as $\\alpha$-particle and $^{16}$O.

W. Y. So; T. Udagawa; S. W. Hong; B. T. Kim

2008-01-15T23:59:59.000Z

65

Network Reliability Optimization via the Cross-Entropy Method  

E-Print Network [OSTI]

1 Network Reliability Optimization via the Cross-Entropy Method Dirk P. Kroese, Kin-Ping Hui and reliability. Given a fixed budget, which links should be purchased in order to maximize the system's reliability? We introduce a new approach, based on the Cross-Entropy method, which can deal effectively

Kroese, Dirk P.

66

Noughts and Crosses  

E-Print Network [OSTI]

. What kinds of stories will you find in Noughts & Crosses? Emotionally involving and entangling ones. Sweetness and light? Well, the rich, bitter-tinged sweetness of dark chocolate and coffee. The almond not of amaretto but of cyanide. And if you?re a..., Edgely complained to the figure in the neighbouring bay. ?This is one of those trainers I was telling you about. See what I mean about bloody prima donnas. You?re best off in here, lad.? To Doyle, with his best obsequious twist of the lips, ?Shall I...

Multiple Contributors

1995-01-01T23:59:59.000Z

67

Zevenhoven & Kilpinen CROSS EFFECTS, TOTAL SYSTEM LAY-OUT 13.6.2001 10-1 Figure 10.1 Typical pulverised coal combustion and gas clean-up system: dry scrubber +  

E-Print Network [OSTI]

pulverised coal combustion and gas clean-up system: dry scrubber + baghouse filter for SO2 and particulate For a conventional pulverised coal-fired power plant a set-up is shown in Figure 10.1, with a gas clean-up system scrubber (pH ~ 6) 60 - 70 7 Re-heater 350 - 400 8 SCR DeNOx 300 - 400 9 Active coke bed 100 - 150 Figure 10

Zevenhoven, Ron

68

Categorical Exclusion for Cross Arm  

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

but not limited to ... changing insulators, circuit breakers, conductors, transformers, and cross arms." C. Regulatorv Requirements in 10 CFR 1021.410 (b): a. The...

69

Avoided crossing resonances: structural and dynamical aspects  

E-Print Network [OSTI]

We examine structural and dynamical properties of quantum resonances associated with an avoided crossing and identify the parameter shifts where these properties attain maximal or extreme values, first at a general level, and then for a two-level system coupled to a harmonic oscillator, of the type commonly found in quantum optics. Finally the results obtained are exemplified and applied to optimize the fidelity and speed of quantum gates in trapped ions.

I. Lizuain; E. Hernandez-Concepcion; J. G. Muga

2009-05-04T23:59:59.000Z

70

Cross-linked structure of network evolution  

SciTech Connect (OSTI)

We study the temporal co-variation of network co-evolution via the cross-link structure of networks, for which we take advantage of the formalism of hypergraphs to map cross-link structures back to network nodes. We investigate two sets of temporal network data in detail. In a network of coupled nonlinear oscillators, hyperedges that consist of network edges with temporally co-varying weights uncover the driving co-evolution patterns of edge weight dynamics both within and between oscillator communities. In the human brain, networks that represent temporal changes in brain activity during learning exhibit early co-evolution that then settles down with practice. Subsequent decreases in hyperedge size are consistent with emergence of an autonomous subgraph whose dynamics no longer depends on other parts of the network. Our results on real and synthetic networks give a poignant demonstration of the ability of cross-link structure to uncover unexpected co-evolution attributes in both real and synthetic dynamical systems. This, in turn, illustrates the utility of analyzing cross-links for investigating the structure of temporal networks.

Bassett, Danielle S., E-mail: dsb@seas.upenn.edu [Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104 (United States); Department of Physics, University of California, Santa Barbara, California 93106 (United States); Sage Center for the Study of the Mind, University of California, Santa Barbara, California 93106 (United States); Wymbs, Nicholas F.; Grafton, Scott T. [Department of Psychology and UCSB Brain Imaging Center, University of California, Santa Barbara, California 93106 (United States)] [Department of Psychology and UCSB Brain Imaging Center, University of California, Santa Barbara, California 93106 (United States); Porter, Mason A. [Oxford Centre for Industrial and Applied Mathematics, Mathematical Institute, University of Oxford, Oxford OX2 6GG (United Kingdom) [Oxford Centre for Industrial and Applied Mathematics, Mathematical Institute, University of Oxford, Oxford OX2 6GG (United Kingdom); CABDyN Complexity Centre, University of Oxford, Oxford, OX1 1HP (United Kingdom); Mucha, Peter J. [Carolina Center for Interdisciplinary Applied Mathematics, Department of Mathematics, University of North Carolina, Chapel Hill, North Carolina 27599 (United States) [Carolina Center for Interdisciplinary Applied Mathematics, Department of Mathematics, University of North Carolina, Chapel Hill, North Carolina 27599 (United States); Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, North Carolina 27599 (United States)

2014-03-15T23:59:59.000Z

71

ADAPTIVE FULL-SPECTRUM SOLAR ENERGY SYSTEMS CROSS-CUTTING R&D ON ADAPTIVE FULL-SPECTRUM SOLAR ENERGY SYSTEMS FOR MORE EFFICIENT AND AFFORDABLE USE OF SOLAR ENERGY IN BUILDINGS AND HYBRID PHOTOBIOREACTORS  

SciTech Connect (OSTI)

This RD&D project is a three year team effort to develop a hybrid solar lighting (HSL) system that transports daylight from a paraboloidal dish concentrator to a luminaire via a bundle of small core or a large core polymer fiber optics. The luminaire can be a device to distribute sunlight into a space for the production of algae or it can be a device that is a combination of daylighting and electric lighting for space/task lighting. In this project, the sunlight is collected using a one-meter paraboloidal concentrator dish with two-axis tracking. For the second generation (alpha) system, the secondary mirror is an ellipsoidal mirror that directs the visible light into a bundle of small-core fibers. The IR spectrum is filtered out to minimize unnecessary heating at the fiber entrance region. This report describes the following investigations of various aspects of the system. Taken as a whole, they confirm significant progress towards the technical feasibility and commercial viability of this technology. (1) TRNSYS Modeling of a Hybrid Lighting System: Building Energy Loads and Chromaticity Analysis; (2) High Lumens Screening Test Setup for Optical Fibers; (3) Photo-Induced Heating in Plastic Optical Fiber Bundles; (4) Low-Cost Primary Mirror Development; (5) Potential Applications for Hybrid Solar Lighting; (6) Photobioreactor Population Experiments and Productivity Measurements; and (7) Development of a Microalgal CO2-Biofixation Photobioreactor.

Byard D. Wood; Jeff D. Muhs

2004-08-01T23:59:59.000Z

72

ADAPTIVE FULL-SPECTRUM SOLAR ENERGY SYSTEMS Cross-Cutting R & D on adaptive full-spectrum solar energy systems for more efficient and affordable use of solar energy in buildings and hybrid photobioreactors  

SciTech Connect (OSTI)

This RD&D project is a three year team effort to develop a hybrid solar lighting (HSL) system that transports daylight from a paraboloidal dish concentrator to a luminaire via a bundle of polymer fiber optics. The luminaire can be a device to distribute sunlight into a space for the production of algae or it can be a device that is a combination of daylighting and electric lighting for space/task lighting. In this project, the sunlight is collected using a one-meter paraboloidal concentrator dish with two-axis tracking. For the third generation (beta) system, the secondary mirror is an ellipsoidal mirror that directs the visible light into a bundle of 3 mm diameter fibers. The IR spectrum is filtered out to minimize unnecessary heating at the fiber entrance region. This report describes the following investigations: Niche applications for HSL technology, Luminaire design characteristics for linear and point lighting fixtures, and Daylight affects on productivity.

Byard D. Wood; David L. Beshears

2006-02-01T23:59:59.000Z

73

Adaptive Full-Spectrum Solar Energy Systems Cross-Cutting R&D on adaptive full-spectrum solar energy systems for more efficient and affordable use of solar energy in buildings and hybrid photobioreactors  

SciTech Connect (OSTI)

This RD&D project is a multi-institutional effort to develop a hybrid solar lighting (HSL) system that transports daylight from a paraboloidal dish concentrator to a luminaire via a bundle of polymer fiber optics. The luminaire can be a device to distribute sunlight into a space for the production of algae for CO{sub 2} sequestration or it can be a device that is a combination of daylighting and electric lighting for space/task lighting. In this project, the sunlight is collected using a one-meter paraboloidal concentrator dish with two-axis tracking. For the third generation (beta) system, the secondary mirror is an ellipsoidal mirror that directs the visible light into a bundle of 3 mm diameter fibers. The IR spectrum is filtered out to minimize unnecessary heating at the fiber entrance region. This report describes the major achievements from this research that began in August 2001.

Wood, Byard; Kim, Kwang

2006-03-30T23:59:59.000Z

74

ADAPTIVE FULL-SPECTRUM SOLAR ENERGY SYSTEMS CROSS-CUTTING R&D ON ADAPTIVE FULL-SPECTRUM SOLAR ENERGY SYSTEMS FOR MORE EFFICIENT AND AFFORDABLE USE OF SOLAR ENERGY IN BUILDINGS AND HYBRID PHOTOBIOREACTORS  

SciTech Connect (OSTI)

This RD&D project is a three year team effort to develop a hybrid solar lighting (HSL) system that transports daylight from a paraboloidal dish concentrator to a luminaire via a bundle of small core or a large core polymer fiber optics. The luminaire can be a device to distribute sunlight into a space for the production of algae or it can be a device that is a combination of daylighting and electric lighting for space/task lighting. In this project, the sunlight is collected using a one-meter paraboloidal concentrator dish with two-axis tracking. For the second generation (alpha) system, the secondary mirror is an ellipsoidal mirror that directs the visible light into a bundle of small-core fibers. The IR spectrum is filtered out to minimize unnecessary heating at the fiber entrance region. This report describes the following investigations of various aspects of the system: (1) Performance specifications were developed for the tracking subsystem and collector optics, (2) Thermal management experiments for the fiber optic bundle entrance region, and (3) Bioreactor testing, cost-modeling, and redesign. Much of the planned work has been slowed due to significant procurement delays of the primary mirror. However, taken as a whole, they do confirm progress towards the technical feasibility and commercial viability of this technology. Due to this procurement delay, a no-cost extension of the project completion date has been requested and approved.

Byard D. Wood; Jeff D. Muhs

2005-02-01T23:59:59.000Z

75

ADAPTIVE FULL-SPECTRUM SOLAR ENERGY SYSTEMS CROSS-CUTTING R&D ON ADAPTIVE FULL-SPECTRUM SOLAR ENERGY SYSTEMS FOR MORE EFFICIENT AND AFFORDABLE USE OF SOLAR ENERGY IN BUILDINGS AND HYBRID PHOTOBIOREACTORS  

SciTech Connect (OSTI)

This RD&D project is a three year team effort to develop a hybrid solar lighting (HSL) system that transports day light from a paraboloidal dish concentrator to a luminaire via a large core polymer fiber optic. The luminaire can be a device to distribute sunlight into a space for the production of algae or it can be a device that is a combination of day lighting and fluorescent lighting for office lighting. In this project, the sunlight is collected using a one-meter paraboloidal concentrator dish with two-axis tracking. The secondary mirror consists of eight planar-segmented mirrors that direct the visible part of the spectrum to eight fibers (receiver) and subsequently to eight luminaires. This results in about 8,200 lumens incident at each fiber tip. Each fiber can illuminate about 16.7 m{sup 2} (180 ft{sup 2}) of office space. The IR spectrum is directed to a thermophotovoltaic array to produce electricity. This report describes eleven investigations on various aspects of the system. Taken as a whole, they confirm the technical feasibility of this technology.

Byard D. Wood; Jeff D. Muhs

2002-09-01T23:59:59.000Z

76

ADAPTIVE FULL-SPECTRUM SOLAR ENERGY SYSTEMS CROSS-CUTTING R&D ON ADAPTIVE FULL SPECTRUM SOLAR ENERGY SYSTEMS FOR MORE EFFICIENT AND AFFORDABLE USE OF SOLAR ENERGY IN BUILDINGS AND HYBRID PHOTOBIOREACTORS  

SciTech Connect (OSTI)

This RD&D project is a three year team effort to develop a hybrid solar lighting (HSL) system that transports day light from a paraboloidal dish concentrator to a luminaire via a large core polymer fiber optic. The luminaire can be a device to distribute sunlight into a space for the production of algae or it can be a device that is a combination of day lighting and fluorescent lighting for office lighting. In this project, the sunlight is collected using a one-meter paraboloidal concentrator dish with two-axis tracking. The secondary mirror consists of eight planar-segmented mirrors that direct the visible part of the spectrum to eight fibers (receiver) and subsequently to eight luminaires. This results in about 8,200 lumens incident at each fiber tip. Each fiber can illuminate about 16.7 m{sup 2} (180 ft{sup 2}) of office space. The IR spectrum is directed to a thermophotovoltaic array to produce electricity. This report emphasizes the design of the thermophotovoltaic receiver and the whole system simulation model.

Byard D. Wood; Jeff D. Muhs

2003-10-01T23:59:59.000Z

77

ADAPTIVE FULL-SPECTRUM SOLAR ENERGY SYSTEMS CROSS-CUTTING R&D ON ADAPTIVE FULL-SPECTRUM SOLAR ENERGY SYSTEMS FOR MORE EFFICIENT AND AFFORDABLE USE OF SOLAR ENERGY IN BUILDINGS AND HYBRID PHOTOBIOREACTORS  

SciTech Connect (OSTI)

This RD&D project is a three year team effort to develop a hybrid solar lighting (HSL) system that transports day light from a paraboloidal dish concentrator to a luminaire via a large core polymer fiber optic. The luminaire can be a device to distribute sunlight into a space for the production of algae or it can be a device that is a combination of day lighting and fluorescent lighting for office lighting. In this project, the sunlight is collected using a one-meter paraboloidal concentrator dish with two-axis tracking. The secondary mirror consists of eight planar-segmented mirrors that direct the visible part of the spectrum to eight fibers (receiver) and subsequently to eight luminaires. This results in about 8,200 lumens incident at each fiber tip. Each fiber can illuminate about 16.7 m{sup 2} (180 ft{sup 2}) of office space. The IR spectrum is directed to a thermophotovoltaic array to produce electricity. This report describes several investigations of various aspects of the system. Taken as a whole, they confirm significant progress towards the technical feasibility of this technology.

Byard D. Wood; Jeff D. Muhs

2003-01-01T23:59:59.000Z

78

U-149: Apache OFBiz Cross-Site Scripting and Code Execution Vulnerabil...  

Office of Environmental Management (EM)

have been reported in Apache OFBiz, which can be exploited by malicious people to conduct cross-site scripting attacks and compromise a vulnerable system. PLATFORM:...

79

Derivation of capture cross section from quasielastic excitation function  

E-Print Network [OSTI]

The relationship between the quasielastic excitation function and the capture cross section is derived. The quasielastic data is shown to be a useful tool to extract the capture cross sections and the angular momenta of the captured systems for the reactions $^{16}$O+$^{144,154}$Sm,$^{208}$Pb, $^{20}$Ne+$^{208}$Pb, and $^{32}$S+$^{90,96}$Zr at near and above the Coulomb barrier energies.

V. V. Sargsyan; G. G. Adamian; N. V. Antonenko; P. R. S. Gomes

2013-04-18T23:59:59.000Z

80

U-206: WordPress Flaws Permit Cross-Site Scripting, Cross-Site...  

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

6: WordPress Flaws Permit Cross-Site Scripting, Cross-Site Request Forgery, and Information Disclosure Attacks U-206: WordPress Flaws Permit Cross-Site Scripting, Cross-Site...

Note: This page contains sample records for the topic "thunderstorm system crossed" 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

21073CAMENABC 5/11 Anthem Blue Cross is the trade name of Blue Cross of California. Anthem Blue Cross and Anthem Blue Cross Life and Health Insurance Company are independent licensees of the Blue Cross Association.  

E-Print Network [OSTI]

21073CAMENABC 5/11 Anthem Blue Cross is the trade name of Blue Cross of California. Anthem Blue Cross and Anthem Blue Cross Life and Health Insurance Company are independent licensees of the Blue Cross Association. ® ANTHEM is a registered trademark of Anthem Insurance Companies, Inc. The Blue Cross

Rose, Michael R.

82

WHERE ARE THE MOST INTENSE THUNDERSTORMS  

E-Print Network [OSTI]

provided unparalleled information on the global distribution of intense convective storms. T he Tropical-alti- tude, non-sun-synchronous orbit permits sampling throughout the diurnal cycle of precipitation. The cloud-top temperature of storms has been measured using infrared (IR) bright- ness temperature (Tb

Nesbitt, Steve

83

Cross Sections for (α, X)  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed Newcatalyst phases on &gamma;-Al2O3.Winter (Part 2) |IOCritical SkillsCrossCross

84

North American Cross-Border  

E-Print Network [OSTI]

Consumption in USA and Canada 21 Figure 8: Electricity Export as a Fraction of Domestic Consumption in USANorth American Cross-Border Electricity Trade Ian M. Loomis Virginia Center for Coal and Energy ii List of Tables ii List of Figures 1 EXECUTIVE SUMMARY 2 INTRODUCTION 5 ELECTRICITY GENERATION

85

Applications of the Cross-Entropy Method in Reliability  

E-Print Network [OSTI]

Applications of the Cross-Entropy Method in Reliability Dirk P. Kroese and Kin-Ping Hui University and components that are all sub- ject to failure. Reliability theory studies the failure behavior of such sys, even for the most basic reliability models, the overall reliability of the system can be difficult

Kroese, Dirk P.

86

On the Wong cross section and fusion oscillations  

E-Print Network [OSTI]

We re-examine the well-known Wong formula for heavy-ion fusion cross sections. Although this celebrated formula yields almost exact results for single-channel calculations for relatively heavy systems such as $^{16}$O+$^{144}$Sm, it tends to overestimate the cross section for light systems such as $^{12}$C+$^{12}$C. We generalise the formula to take account of the energy dependence of the barrier parameters and show that the energy-dependent version gives results practically indistinguishable from a full quantal calculation. We then examine the deviations arising from the discrete nature of the intervening angular momenta, whose effect can lead to an oscillatory contribution to the excitation function. We recall some compact, analytic expressions for these oscillations, and highlight the important physical parameters that give rise to them. Oscillations in symmetric systems are discussed, as are systems where the target and projectile identities can be exchanged via a strong transfer channel.

Rowley, N

2015-01-01T23:59:59.000Z

87

Method and apparatus for controlling cross contamination of microfluid channels  

DOE Patents [OSTI]

A method for controlling fluid flow at junctions in microchannel systems. Control of fluid flow is accomplished generally by providing increased resistance to electric-field and pressure-driven flow in the form of regions of reduced effective cross-sectional area within the microchannels and proximate a channel junction. By controlling these flows in the region of a microchannel junction it is possible to eliminate sample dispersion and cross contamination and inject well-defined volumes of fluid from one channel to another.

Hasselbrink, Jr., Ernest F. (Walnut Creek, CA); Rehm, Jason E. (Alameda, CA); Paul, Phillip H. (Livermore, CA); Arnold, Don W. (Livermore, CA)

2006-02-07T23:59:59.000Z

88

STUDENTS CROSSING BORDERS (SCB) COMMUNITY APPLICATION FORM  

E-Print Network [OSTI]

STUDENTS CROSSING BORDERS (SCB) COMMUNITY APPLICATION FORM The Students Crossing Borders community of Minnesota. This document is a supplemental application for the SCB community only. Current U of M Housing this application to: scb@umn.edu or Students Crossing Borders c/o Kevin Dostal Dauer Comstock Hall East 210

Blanchette, Robert A.

89

Absorption cross section in Lifshitz black hole  

E-Print Network [OSTI]

We derive the absorption cross section of a minimally coupled scalar in the Lifshitz black hole obtained from the new massive gravity. The absorption cross section reduces to the horizon area in the low energy and massless limit of s-wave mode propagation, indicating that the Lifshitz black hole also satisfies the universality of low energy absorption cross section for black holes.

Taeyoon Moon; Yun Soo Myung

2012-10-05T23:59:59.000Z

90

Environmental justice implications of arsenic contamination in California¿s San Joaquin Valley: a cross-sectional, cluster-design examining exposure and compliance in community drinking water systems  

E-Print Network [OSTI]

in community drinking water systems. Environmental Healthconcentrations in drinking water in Chile. Epidemiologyand enforcement of the safe drinking water act: The Arizona

Balazs, Carolina L; Morello-Frosch, Rachel; Hubbard, Alan E; Ray, Isha

2012-01-01T23:59:59.000Z

91

Experimental balance energies and isospin-dependent nucleon-nucleon cross-sections  

E-Print Network [OSTI]

The effect of different isospin-dependent cross-section on directed flow is studied for variety of systems(for which experimental balance energies are available) using an isospin-dependent Quantum Molecular Dynamic (IQMD) model. We show that balance energies are sensitive towards isospin-dependent cross-sections for light systems, while nearly no effect exist for heavier nuclei. A reduced cross-section $\\sigma = 0.9\\sigma_{NN}$ with stiff equation of state is able to explain experimental balance energies in most of systems. A power law behaviour is also given for the mass dependence of balance energy, which also follow N/Z dependence.

Sanjeev Kumar; Rajni; Suneel Kumar

2010-09-28T23:59:59.000Z

92

The cross-coupled amplifier  

E-Print Network [OSTI]

be the equivalent parallel resistance of the load and the plate load resistance. OUTPUT UNBALANCE WHEN USED AS A PHASE INVEHTEH When the cross-coupled amplifier circuit is used as a phase inverter, that is, when the input signal is single-ended, the unbalance.... The ampl1fier may be operated with input signals having any one of the follow- ing forms: ( I) A push-pull signal connected to terminals l, 2 and 3 (2) A single-ended signal connected to termi- nals I and 2 or 3 an& 2 ~ ( 3) Two separate s1ngle...

Robinson, George Clyde

1951-01-01T23:59:59.000Z

93

CrossConnects Workshop Series  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to User GroupInformationE-GovNaturalInstitute CriticalCross

94

Cross Sections for (p, X)  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed Newcatalyst phases on &gamma;-Al2O3.Winter (Part 2) |IOCritical SkillsCross

95

Cross-sector Demand Response  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed Newcatalyst phases on &gamma;-Al2O3.Winter (Part 2) |IOCriticalCross-Sector Sign

96

SNL RML recommended dosimetry cross section compendium  

SciTech Connect (OSTI)

A compendium of dosimetry cross sections is presented for use in the characterization of fission reactor spectrum and fluence. The contents of this cross section library are based upon the ENDF/B-VI and IRDF-90 cross section libraries and are recommended as a replacement for the DOSCROS84 multigroup library that is widely used by the dosimetry community. Documentation is provided on the rationale for the choice of the cross sections selected for inclusion in this library and on the uncertainty and variation in cross sections presented by state-of-the-art evaluations.

Griffin, P.J.; Kelly, J.G.; Luera, T.F. [Sandia National Labs., Albuquerque, NM (United States)] [Sandia National Labs., Albuquerque, NM (United States); VanDenburg, J. [Science and Engineering Associates, Inc., Albuquerque, NM (United States)] [Science and Engineering Associates, Inc., Albuquerque, NM (United States)

1993-11-01T23:59:59.000Z

97

U-073: Bugzilla Flaws Permit Cross-Site Scripting and Cross-Site Request Forgery Attacks  

Broader source: Energy.gov [DOE]

Several vulnerabilities were reported in Bugzilla. A remote user can conduct cross-site scripting attacks.

98

Spiral microchannel with rectangular and trapezoidal cross-sections for size based particle separation  

E-Print Network [OSTI]

The paper reports a new method for three-dimensional observation of the location of focused particle streams along both the depth and width of the channel cross-section in spiral inertial microfluidic systems. The results ...

Guan, Guofeng

99

Photo-initiated cross-linked polyacrylamide gels for microdevice electrophoresis  

E-Print Network [OSTI]

Photo-polymerized cross-linked polyacrylamide gels are becoming increasingly important for use in micro-fabricated DNA electrophoresis systems because they allow a concentrated sieving matrix to be precisely positioned at any location within a...

Agrawal, Shilpa

2005-08-29T23:59:59.000Z

100

A crossed product of the CAR algebra in the Cuntz algebra  

E-Print Network [OSTI]

In this paper we show that the Cuntz algebra can be represented as a C*-crossed product by endomorphism of the canonical anticommutation relations (CAR) algebra, generated by the standard recursive fermion system.

Marat Aukhadiev; Alexander Nikitin; Airat Sitdikov

2014-04-02T23:59:59.000Z

Note: This page contains sample records for the topic "thunderstorm system crossed" 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

Born-Oppenheimer Approximation near Level Crossing  

E-Print Network [OSTI]

We consider the Born-Oppenheimer problem near conical intersection in two dimensions. For energies close to the crossing energy we describe the wave function near an isotropic crossing and show that it is related to generalized hypergeometric functions 0F3. This function is to a conical intersection what the Airy function is to a classical turning point. As an application we calculate the anomalous Zeeman shift of vibrational levels near a crossing.

A. Gordon; J. E. Avron

2000-05-29T23:59:59.000Z

102

{sup 16}O neutron cross section evaluation  

SciTech Connect (OSTI)

This work has resulted from a need to compute more accurately the neutron scattering cross sections and angular distributions for {sup 16}O. Several oxygen evaluations have been performed in the past with R-Matrix theory, including ENDF/B-V and ENDF/B-VI. ENDF/B-VI is an improvement over ENDF/B-V, but still underpredicts in general the forward scattering of neutrons below 2.5 MeV. R-Matrix theory is used in describing cross sections at and near the resonance energies; but may not always be adequate in describing cross sections between resonances, especially when they are widely spaced. The optical (potential well) model of the nucleus is very good in representing cross sections that vary smoothly with energy, but not at describing all of the detailed resonance cross sections. A combination of the potential well model and R-Matrix theory was used for this work to represent cross sections with isolated resonances with large spacings between them. The total neutron cross section of oxygen-16 below 3.0 MeV has widely separated resonances and a dip in the cross section at 2.35 MeV. In the vicinity of resonances, where cross sections vary rapidly with energy, R-Matrix theory has been successful in fitting experimental data. In the region between resonances, an analytical procedure with physical basis is needed that agrees with data over a wide range of energies bracketing regions where experimental measurements are lacking.

Caro, E. [Lockheed Martin Corp., Schenectady, NY (United States)

1998-06-01T23:59:59.000Z

103

Virginia Natural Gas's Hampton Roads Pipeline Crossing  

Broader source: Energy.gov [DOE]

Presentation—given at the Federal Utility Partnership Working Group (FUPWG) Fall 2008 meeting—covers Virginia Natural Gas's (VNG's) pipeline project at Hampton Roads Crossing (HRX).

104

CROSS-SITE COMPUTATIONS ON THE TERAGRID  

E-Print Network [OSTI]

COMPUTING IN SCIENCE & ENGINEERING. CROSS-SITE ...... of the Institute's Society of Physics Students, which includes the honor society Sigma Pi Sigma.

2005-08-16T23:59:59.000Z

105

Recirculating cross-correlation detector  

DOE Patents [OSTI]

A digital cross-correlation detector is provided in which two time-varying signals are correlated by repetitively comparing data samples stored in digital form to detect correlation between the two signals. The signals are sampled at a selected rate converted to digital form, and stored in separate locations in separate memories. When the memories are filled, the data samples from each memory are first fed word-by-word through a multiplier and summing circuit and each result is compared to the last in a peak memory circuit and if larger than the last is retained in the peak memory. Then the address line to leading signal memory is offset by one byte to affect one sample period delay of a known amount in that memory and the data in the two memories are then multiplied word-by-word once again and summed. If a new result is larger than a former sum, it is saved in the peak memory together with the time delay. The recirculating process continues with the address of the one memory being offset one additional byte each cycle until the address is shifted through the length of the memory. The correlation between the two signals is indicated by the peak signal stored in the peak memory together with the delay time at which the peak occurred. The circuit is faster and considerably less expensive than comparable accuracy correlation detectors.

Andrews, W.H. Jr.; Roberts, M.J.

1985-01-18T23:59:59.000Z

106

Line tests show DRA's don't cross-contaminate  

SciTech Connect (OSTI)

Pipeline tests with a commercially available drag-reducing agent (DRA) show that such agents can be injected into one product in a multiproduct pipeline without cross-contamination from one batch to another. The tests were conducted in the Cherokee system, a three-segment Ponca City-to-Oklahoma City products line operated by Conoco Pipe Line Co. A batch of gasoline treated with a DRA, Conoco's CDR Flow Improver, preceded an untreated jet-fuel batch. The amount of DRA in the gasoline was measured as the tenders were transported through the pipeline system.

Goudy, C.F.L.; Muth, C.I.

1989-05-15T23:59:59.000Z

107

Crossing the Universe with Supernovae  

E-Print Network [OSTI]

km/s Blanco et al 1987 77 #12;Model the system... Evolve a star Inject Energy in its center and let, Carbon, and Oxygen (IIb have H also) 55 #12;The Most Common - The Core Collapse of a Masive Star SN 1987A which injected energy in the star's center was asymmetric, and ejected radioactive nickel out to high

Hinton, Jim

108

Crossed-beam studies of the dynamics of radical reactions  

SciTech Connect (OSTI)

The objective of this program is to characterize the detailed dynamics of elementary radical reactions and to provide a better understanding of radical reactivity in general. The radical beam is typically generated by a laser photolysis method. After colliding with the reacting molecule in a crossed-beam apparatus, the reaction product state distribution is interrogated by laser spectroscopic techniques. Several radicals of combustion significance, such as O, CH, OH, CN and NCO have been successfully generated and their collisional behavior at the state-to-state integral cross section level of detail has been studied in this manner. During the past year, the detection system has been converted from LIF to REMPI schemes, and the emphasis of this program shifted to investigate the product angular distributions. Both inelastic and reactive processes have been studied.

Liu, K. [Argonne National Laboratory, IL (United States)

1993-12-01T23:59:59.000Z

109

Method of producing monolithic ceramic cross-flow filter  

DOE Patents [OSTI]

Ceramic filter of various configuration have been used to filter particulates from hot gases exhausted from coal-fired systems. Prior ceramic cross-flow filters have been favored over other types, but those previously have been assemblies of parts somehow fastened together and consequently subject often to distortion or delamination on exposure hot gas in normal use. The present new monolithic, seamless, cross-flow ceramic filters, being of one-piece construction, are not prone to such failure. Further, these new products are made by a novel casting process which involves the key steps of demolding the ceramic filter green body so that none of the fragile inner walls of the filter is cracked or broken. 2 figs.

Larsen, D.A.; Bacchi, D.P.; Connors, T.F.; Collins, E.L. III

1998-02-10T23:59:59.000Z

110

Method of producing monolithic ceramic cross-flow filter  

DOE Patents [OSTI]

Ceramic filter of various configuration have been used to filter particulates from hot gases exhausted from coal-fired systems. Prior ceramic cross-flow filters have been favored over other types, but those previously horn have been assemblies of parts somehow fastened together and consequently subject often to distortion or delamination on exposure hot gas in normal use. The present new monolithic, seamless, cross-flow ceramic filters, being of one-piece construction, are not prone to such failure. Further, these new products are made by novel casting process which involves the key steps of demolding the ceramic filter green body so that none of the fragile inner walls of the filter is cracked or broken.

Larsen, David A. (Clifton Park, NY); Bacchi, David P. (Schenectady, NY); Connors, Timothy F. (Watervliet, NY); Collins, III, Edwin L. (Albany, NY)

1998-01-01T23:59:59.000Z

111

Evaluation of enhanced traffic control devices for use at highway-railroad grade crossings  

E-Print Network [OSTI]

the standard railroad advance warning sign. The LOOK FOR TRAIN AT CROSSING system was installed at a crossing near Temple, Texas. The vehicle-activated strobe light was triggered by a loop detector and powered by a solar charged 12-volt battery. Three study... approximately five hundred speed profiles at each location. Speed profile data is more readily obtained in the field than driver behavior. Also, the low volumes experienced on these roadways and the location of the grade crossing restrict on-site observation...

Carroll, Randy W.

2000-01-01T23:59:59.000Z

112

Guest Editors' Introduction: Cross reality environments  

E-Print Network [OSTI]

In this article, we define cross-reality as the union between ubiquitous sensor/actuator networks and shared online virtual worlds-a place where collective human perception meets the machines' view of pervasive computing. ...

Landay, James A.

113

MODELING AND FISSION CROSS SECTIONS FOR AMERICIUM.  

SciTech Connect (OSTI)

This is the final report of the work performed under the LANL contract on the modeling and fission cross section for americium isotopes (May 2004-June 2005). The purpose of the contract was to provide fission cross sections for americium isotopes with the nuclear reaction model code EMPIRE 2.19. The following work was performed: (1) Fission calculations capability suitable for americium was implemented to the EMPIRE-2.19 code. (2) Calculations of neutron-induced fission cross sections for {sup 239}Am to {sup 244g}Am were performed with EMPIRE-2.19 for energies up to 20 MeV. For the neutron-induced reaction of {sup 240}Am, fission cross sections were predicted and uncertainties were assessed. (3) Set of fission barrier heights for each americium isotopes was chosen so that the new calculations fit the experimental data and follow the systematics found in the literature.

ROCHMAN, D.; HERMAN, M.; OBLOZINSKY, P.

2005-05-01T23:59:59.000Z

114

CROSS-CONNECTIONS COLLEGE OF LAW  

E-Print Network [OSTI]

of redacted FBI documents, compiled witness books, cross-referenced names, and researched information about Ku Klux Klan activities in the region. As a result of their hard work, the FBI and the U.S. Attorney

McConnell, Terry

115

Ceramic Cross Flow Recuperator Design Parameters  

E-Print Network [OSTI]

GTE Products Corporation has developed a compact ceramic cross flow recuperator for high temperature industrial heat recovery applications. They recently completed a jointly funded project with the DOE, (Contract #EX-76-C-0 1-2162) to demonstrate...

Gonzalez, J. M.; Rebello, W. J.

1981-01-01T23:59:59.000Z

116

Absorption cross section of RN black hole  

E-Print Network [OSTI]

The behavior of a charged scalar field in the RN black hole space time is studied using WKB approximation. In the present work it is assumed that matter waves can get reflected from the event horizon. Using this effect, the Hawking temperature and the absorption cross section for RN black hole placed in a charged scalar field are calculated. The absorption cross section $\\sigma _{abs}$ is found to be inversely proportional to square of the Hawking temperature of the black hole.

Sini R.; V. C. Kuriakose

2007-08-23T23:59:59.000Z

117

Hydrogen atom in crossed electric and magnetic fields: Phase space topology and torus quantization via periodic orbits  

E-Print Network [OSTI]

Hydrogen atom in crossed electric and magnetic fields: Phase space topology and torus quantization for the periodic orbits in a strongly coupled multidimen- sional Hamiltonian system, namely the hydrogen atom.15.Gy, 05.45.-a, 45.20.Jj I. INTRODUCTION The hydrogen atom in crossed electric and magnetic fields

118

Driver comprehension of railroad-highway grade crossings  

E-Print Network [OSTI]

Over the past twenty years, over $2 billion has been allocated for the improvement of railroad-highway grade crossings. Many passive crossings have been upgraded with active protection which has decreased the number of collisions at grade crossings...

Messick, Jennifer

1995-01-01T23:59:59.000Z

119

Stability Crossing Boundaries and Fragility Characterization of PID Controllers for SISO  

E-Print Network [OSTI]

Stability Crossing Boundaries and Fragility Characterization of PID Controllers for SISO Systems-input-single-output (SISO) systems subject to input (or output) delays in the presence of PID-controllers. More precisely analysis as well as for the fragility of such PID controllers. The proposed approach is illustrated

Paris-Sud XI, Université de

120

Cross Border Trading and Borrowing in the EU ETS A. Denny Ellerman* and Raphael Trotignon**  

E-Print Network [OSTI]

multi- national trading system, the European Union's CO2 Emissions Trading Scheme (EU ETS) provides** This paper exploits a little used data resource within the central registry of the European Union's Emissions Trading System (EU ETS) to analyze cross border trading and inter-year borrowing during the first trading

Note: This page contains sample records for the topic "thunderstorm system crossed" 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

Cross-flow electrochemical reactor cells, cross-flow reactors, and use of cross-flow reactors for oxidation reactions  

DOE Patents [OSTI]

This invention discloses cross-flow electrochemical reactor cells containing oxygen permeable materials which have both electron conductivity and oxygen ion conductivity, cross-flow reactors, and electrochemical processes using cross-flow reactor cells having oxygen permeable monolithic cores to control and facilitate transport of oxygen from an oxygen-containing gas stream to oxidation reactions of organic compounds in another gas stream. These cross-flow electrochemical reactors comprise a hollow ceramic blade positioned across a gas stream flow or a stack of crossed hollow ceramic blades containing a channel or channels for flow of gas streams. Each channel has at least one channel wall disposed between a channel and a portion of an outer surface of the ceramic blade, or a common wall with adjacent blades in a stack comprising a gas-impervious mixed metal oxide material of a perovskite structure having electron conductivity and oxygen ion conductivity. The invention includes reactors comprising first and second zones seprated by gas-impervious mixed metal oxide material material having electron conductivity and oxygen ion conductivity. Prefered gas-impervious materials comprise at least one mixed metal oxide having a perovskite structure or perovskite-like structure. The invention includes, also, oxidation processes controlled by using these electrochemical reactors, and these reactions do not require an external source of electrical potential or any external electric circuit for oxidation to proceed.

Balachandran, Uthamalingam (Hinsdale, IL); Poeppel, Roger B. (Glen Ellyn, IL); Kleefisch, Mark S. (Naperville, IL); Kobylinski, Thaddeus P. (Lisle, IL); Udovich, Carl A. (Joliet, IL)

1994-01-01T23:59:59.000Z

122

2014 Annual Merit Review Results Report - Cross-reference of...  

Energy Savers [EERE]

Cross-reference of Project Investigators, Projects, and Organizations 2014 Annual Merit Review Results Report - Cross-reference of Project Investigators, Projects, and...

123

U-252: Barracuda Web Filter Input Validation Flaws Permit Cross...  

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

2: Barracuda Web Filter Input Validation Flaws Permit Cross-Site Scripting Attacks U-252: Barracuda Web Filter Input Validation Flaws Permit Cross-Site Scripting Attacks September...

124

DOERS Records Schedule Cross Index to DOE Administrative Records...  

Office of Environmental Management (EM)

DOERS Records Schedule Cross Index to DOE Administrative Records Disposition Schedules DOERS Records Schedule Cross Index to DOE Administrative Records Disposition Schedules...

125

2008 Annual Merit Review Results Summary - 18. Cross-Reference...  

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

2008 Annual Merit Review Results Summary - 18. Cross-Reference of Project Investigators, Projects, and Organizations 2008 Annual Merit Review Results Summary - 18. Cross-Reference...

126

UNPACKING COMPLEXITIES OF DISTURBANCE: INSIGHTS FROM CROSS-SYSTEM COMPARISONS  

E-Print Network [OSTI]

Duniway, and Christine Laney are with the US Department of Agriculture-Agricultural Research Service;Abstract Current use of definitions of disturbance limit quantitative comparisons of the effects: disturbance, drought, ecological theory, global change, hurricane, overgrazing, thresholds, wildfire 2 #12

Minnesota, University of

127

Tandem mobile robot system  

DOE Patents [OSTI]

A robotic vehicle system for terrain navigation mobility provides a way to climb stairs, cross crevices, and navigate across difficult terrain by coupling two or more mobile robots with a coupling device and controlling the robots cooperatively in tandem.

Buttz, James H. (Albuquerque, NM); Shirey, David L. (Albuquerque, NM); Hayward, David R. (Albuquerque, NM)

2003-01-01T23:59:59.000Z

128

Nickel-catalyzed asymmetric cross-couplings of secondary allylic chlorides and planar-chiral compounds in asymmetric synthesis  

E-Print Network [OSTI]

In Part I, nickel-catalyzed asymmetric carbon-carbon bond-forming reactions are described. A nickel/Pybox system effectively catalyzes regio- and enantioselective cross-couplings between racemic secondary allylic chlorides ...

Son, Sunghee

2008-01-01T23:59:59.000Z

129

Determination of aggregate physical properties and its effects on cross-anisotropic behavior of unbound aggregate materials  

E-Print Network [OSTI]

stresses computed within granular layers. Existing pavement analysis and design approaches, however, generally assume the pavement structure to be linear isotropic layered system. This assumption is motivated by the difficulties in determining cross...

Kim, Sung-Hee

2005-11-01T23:59:59.000Z

130

Bryan, Hannegan, Energy Systems Integration  

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

cross m ul*ple p athways a nd s cales New A pproach E nergy Systems Integra.on 5 * Sensors and controls * Design and integration * Modeling and simulation * System...

131

VUV-absorption cross section of CO2 at high temperatures and impact on exoplanet atmospheres  

E-Print Network [OSTI]

Ultraviolet (UV) absorption cross sections are an essential ingredient of photochemical atmosphere models. Exoplanet searches have unveiled a large population of short-period objects with hot atmospheres, very different from what we find in our solar system. Transiting exoplanets whose atmospheres can now be studied by transit spectroscopy receive extremely strong UV fluxes and have typical temperatures ranging from 400 to 2500 K. At these temperatures, UV photolysis cross section data are severely lacking. Our goal is to provide high-temperature absorption cross sections and their temperature dependency for important atmospheric compounds. This study is dedicated to CO2, which is observed and photodissociated in exoplanet atmospheres. We performed these measurements for the 115 - 200 nm range at 300, 410, 480, and 550 K. In the 195 - 230 nm range, we worked at seven temperatures between 465 and 800 K. We found that the absorption cross section of CO2 is very sensitive to temperature, especially above 160 nm....

Venot, Olivia; Bénilan, Yves; Gazeau, Marie-Claire; Hébrard, Eric; Larcher, Gwenaelle; Schwell, Martin; Dobrijevic, Michel; Selsis, Franck

2015-01-01T23:59:59.000Z

132

On the temperature dependence of the absorption cross section for charged black holes  

E-Print Network [OSTI]

We analyze the the low frequency absorption cross section of minimally coupled massless scalar fields by different kinds of charged static black holes, namely the d-dimensional Reissner-Nordstrom solution, the D1-D5 system in d=5 and a four dimensional dyonic four-charged black hole. In each case we show that this cross section is inversely proportional to the black hole Hawking temperature. This inverse proportionality also arises in the same cross section for black holes with string $alpha' corrections, as we have shown in a previous work: string corrections induce such temperature dependence. In each case we also carefully analyze the extremal limit and show that the cross section is well defined in it.

Filipe Moura

2014-06-08T23:59:59.000Z

133

Cross sections of neutron-induced reactions  

SciTech Connect (OSTI)

We study the properties of the neutron-nucleus total and reaction cross sections for several nuclei. We have applied an analytical model, the nuclear Ramsauer model, justified it from the nuclear reaction theory approach, and extracted the values of 12 parameters used in the model. The given parametrization has an advantage as phenomenological optical model potentials are limited up to 150-200 MeV. The present model provides good estimates of the total cross sections for several nuclei particularly at high energies.

Mukhopadhyay, Tapan; Lahiri, Joydev; Basu, D. N. [Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Kolkata 700064 (India)

2010-10-15T23:59:59.000Z

134

Total Cross Sections for Neutron Scattering  

E-Print Network [OSTI]

Measurements of neutron total cross-sections are both extensive and extremely accurate. Although they place a strong constraint on theoretically constructed models, there are relatively few comparisons of predictions with experiment. The total cross-sections for neutron scattering from $^{16}$O and $^{40}$Ca are calculated as a function of energy from $50-700$~MeV laboratory energy with a microscopic first order optical potential derived within the framework of the Watson expansion. Although these results are already in qualitative agreement with the data, the inclusion of medium corrections to the propagator is essential to correctly predict the energy dependence given by the experiment.

C. R. Chinn; Ch. Elster; R. M. Thaler; S. P. Weppner

1994-10-19T23:59:59.000Z

135

Unitary limit in cross Andreev transport  

E-Print Network [OSTI]

Crossed Andreev reflection (CAR) in which Cooper pair splits into two spin- and energy entangled electrons that leave a superconductor through respective spatially separated leads is one of the most promising approaches to generating pairs of entangled electrons. However, while the conventional (local) Andreev reflection occurs with the probability of unity, the probability of CAR is significantly suppressed. Here we propose a hybrid normal metal-superconductor setup that enables achieving a unitary limit of cross Andreev transport, i.e. CAR with the probability of unity thus offering the outcome of the entangled electrons with the 100% efficiency.

I. A. Sadovskyy; G. B. Lesovik; V. M. Vinokur

2014-12-28T23:59:59.000Z

136

Precise neutron inelastic cross section measurements  

SciTech Connect (OSTI)

The design of a new generation of nuclear reactors requires the development of a very precise neutron cross section database. Ongoing experiments performed at dedicated facilities aim to the measurement of such cross sections with an unprecedented uncertainty of the order of 5% or even smaller. We give an overview of such a facility: the Gamma Array for Inelastic Neutron Scattering (GAINS) installed at the GELINA neutron source of IRMM, Belgium. Some of the most challenging difficulties of the experimental approach are emphasized and recent results are shown.

Negret, Alexandru [Horia Hulubei National Institute for Physics and Nuclear Engineering, Reactorului 30, 077125 Bucharest-Magurele (Romania)

2012-11-20T23:59:59.000Z

137

Cross-connection control of the potable water lines at Oak Ridge National Laboratory  

SciTech Connect (OSTI)

A 1991 independent U.S. Department of Energy (DOE) audit of Oak Ridge National Laboratory (ORNL) identified the need for establishing a cross-connection control program for the potable and nonpotable water systems at the facility. An informal cross-connection policy had been in place for some time, but the formal implementation of a cross-connection program brought together individuals from the Quality Engineering and Inspection Section of the Office of Quality Programs and Inspection, Industrial Hygiene, Health Physics, Plant and Equipment Division, and the Atomic Trade and Labor Council. In January 1994 a Cross-Connection Control Committee was established at ORNL to identify potential and actual cross connections between potable and nonpotable water systems. Potable water is safe to drink, and nonpotable or process water (e.g., sewage, laboratory wastewater, cooling water, and tower water) is not intended for human consumption, washing of the body, or food preparation. The program is intended to conform with the Federal Safe Drinking Water Act Amendment of 1986 and with state and local regulations. Although the Occupational Safety and Health Administration addresses cross-connection functions, it does not define specific program requirements. The program at ORNL is designed to ensure that necessary recommendations are implemented to safeguard all internal and external potable water distribution lines. Program responsibilities include a thorough engineering assessment to (1) identify the potable water lines, (2) identify any existing or potential cross connections, and (3) inspect the integrity of the water lines. If any cross-connection deficiencies are found, corrective actions are initiated according to industry standards.

Moore, R.M.

1996-04-01T23:59:59.000Z

138

Production Cross Section of Neutron-Rich Calcium Isotopes in Heavy Ion Collisions  

E-Print Network [OSTI]

Based on the isospin-dependent quantum molecular dynamics model along with the GEMINI model, heavy-ion collisions at intermediate energies are studied. We calculate the production cross sections of different fragments for reactions of 112Sn+112Sn and 124Sn+124Sn at different beam energies. The species and production cross sections of neutron-rich isotopes are generally dependent on the isospin of the system and the incident energies. The nucleon 48Ca and 54Ca are more productive for the neutron-rich system at 30 to 150 MeV/nucleon.

Donghong Zhang; Wenjie Xie; Jun Su; Fengshou Zhang

2015-03-27T23:59:59.000Z

139

Testing (Validating?) Cross Sections with ICSBEP Benchmarks  

SciTech Connect (OSTI)

We discuss how to use critical benchmarks from the International Handbook of Evaluated Criticality Safety Benchmark Experiments to determine the applicability of specific cross sections to the end-user's problem of interest. Particular attention is paid to making sure the selected suite of benchmarks includes the user's range of applicability (ROA).

Kahler, Albert C. III [Los Alamos National Laboratory

2012-06-28T23:59:59.000Z

140

Cross-Modal Multimedia Nikhil Rasiwasia  

E-Print Network [OSTI]

interpretation. Bridge, Sky, Vacation, Golden Gate, San Francisco, etc. #12;7 Visual Recognition Cross short of image description. - Complex semantic interpretation. The Golden Gate Bridge is a suspension bridge spanning the Golden Gate, the opening of the San Francisco Bay into the Pacific Ocean. As part

Heiser, Gernot

Note: This page contains sample records for the topic "thunderstorm system crossed" 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

Final report for CCS cross-layer reliability visioning study  

SciTech Connect (OSTI)

The geometric rate of improvement of transistor size and integrated circuit performance known as Moore's Law has been an engine of growth for our economy, enabling new products and services, creating new value and wealth, increasing safety, and removing menial tasks from our daily lives. Affordable, highly integrated components have enabled both life-saving technologies and rich entertainment applications. Anti-lock brakes, insulin monitors, and GPS-enabled emergency response systems save lives. Cell phones, internet appliances, virtual worlds, realistic video games, and mp3 players enrich our lives and connect us together. Over the past 40 years of silicon scaling, the increasing capabilities of inexpensive computation have transformed our society through automation and ubiquitous communications. Looking forward, increasing unpredictability threatens our ability to continue scaling integrated circuits at Moore's Law rates. As the transistors and wires that make up integrated circuits become smaller, they display both greater differences in behavior among devices designed to be identical and greater vulnerability to transient and permanent faults. Conventional design techniques expend energy to tolerate this unpredictability by adding safety margins to a circuit's operating voltage, clock frequency or charge stored per bit. However, the rising energy costs needed to compensate for increasing unpredictability are rapidly becoming unacceptable in today's environment where power consumption is often the limiting factor on integrated circuit performance and energy efficiency is a national concern. Reliability and energy consumption are both reaching key inflection points that, together, threaten to reduce or end the benefits of feature size reduction. To continue beneficial scaling, we must use a cross-layer, Jull-system-design approach to reliability. Unlike current systems, which charge every device a substantial energy tax in order to guarantee correct operation in spite of rare events, such as one high-threshold transistor in a billion or one erroneous gate evaluation in an hour of computation, cross-layer reliability schemes make reliability management a cooperative effort across the system stack, sharing information across layers so that they only expend energy on reliability when an error actually occurs. Figure 1 illustrates an example of such a system that uses a combination of information from the application and cheap architecture-level techniques to detect errors. When an error occurs, mechanisms at higher levels in the stack correct the error, efficiently delivering correct operation to the user in spite of errors at the device or circuit levels. In the realms of memory and communication, engineers have a long history of success in tolerating unpredictable effects such as fabrication variability, transient upsets, and lifetime wear using information sharing, limited redundancy, and cross-layer approaches that anticipate, accommodate, and suppress errors. Networks use a combination of hardware and software to guarantee end-toend correctness. Error-detection and correction codes use additional information to correct the most common errors, single-bit transmission errors. When errors occur that cannot be corrected by these codes, the network protocol requests re-transmission of one or more packets until the correct data is received. Similarly, computer memory systems exploit a cross-layer division of labor to achieve high performance with modest hardware. Rather than demanding that hardware alone provide the virtual memory abstraction, software page-fault and TLB-miss handlers allow a modest piece of hardware, the TLB, to handle the common-case operations on a cyc1e-by-cycle basis while infrequent misses are handled in system software. Unfortunately, mitigating logic errors is not as simple or as well researched as memory or communication systems. This lack of understanding has led to very expensive solutions. For example, triple-modular redundancy masks errors by triplicating computations in either time or area. T

Quinn, Heather M [Los Alamos National Laboratory; Dehon, Andre [U. PENN; Carter, Nicj [INTEL

2010-12-20T23:59:59.000Z

142

Thermal/chemical degradation of ceramic cross-flow filter materials  

SciTech Connect (OSTI)

This report summarizes the 14-month, Phase 1 effort conducted by Westinghouse on the Thermal/Chemical Degradation of Ceramic Cross-Flow Filter Materials program. In Phase 1 expected filter process conditions were identified for a fixed-bed, fluid-bed, and entrained-bed gasification, direct coal fired turbine, and pressurized fluidized-bed combustion system. Ceramic cross-flow filter materials were also selected, procured, and subjected to chemical and physical characterization. The stability of each of the ceramic cross-flow materials was assessed in terms of potential reactions or phase change as a result of process temperature, and effluent gas compositions containing alkali and fines. In addition chemical and physical characterization was conducted on cross-flow filters that were exposed to the METC fluid-bed gasifier and the New York University pressurized fluidized-bed combustor. Long-term high temperature degradation mechanisms were proposed for each ceramic cross-flow material at process operating conditions. An experimental bench-scale test program is recommended to be conducted in Phase 2, generating data that support the proposed cross-flow filter material thermal/chemical degradation mechanisms. Papers on the individual subtasks have been processed separately for inclusion on the data base.

Alvin, M.A.; Lane, J.E.; Lippert, T.E.

1989-11-01T23:59:59.000Z

143

V-084: RSA Archer eGRC Permits Cross-Site Scripting, Cross-Domain...  

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

Users Upload Files and Let Remote Users Conduct Cross-Site Scripting Attacks V-234: EMC RSA Archer GRC Open Redirection Weakness and Security Bypass Security Issue U-129: RSA...

144

Photonuclear Reaction Cross Sections for Gallium Isotopes  

E-Print Network [OSTI]

The photon induced reactions which are named as photonuclear reactions have a great importance in many field of nuclear, radiation physics and related fields. Since we have planned to perform photonuclear reaction on gallium target with bremmstrahlung photons from clinical linear accelerator in the future, the cross-sections of neutron (photo-neutron ({\\gamma},xn)) and proton (photo-proton ({\\gamma},xn)) productions after photon activation have been calculated by using TALYS 1.2 computer code in this study. The target nucleus has been considered gallium which has two stable isotopes, 69Ga and 71Ga. According to the results, we have seen that the calculations are in harmony in the limited literature values. Furthermore, the pre-equilibrium and compound process contributions to the total cross-section have been investigated.

Serkan Akkoyun; Tuncay Bayram

2014-09-08T23:59:59.000Z

145

Background-free balanced optical cross correlator  

DOE Patents [OSTI]

A balanced optical cross correlator includes an optical waveguide, a first photodiode including a first n-type semiconductor and a first p-type semiconductor positioned about the optical waveguide on a first side of the optical waveguide's point of symmetry, and a second photodiode including a second n-type semiconductor and a second p-type semiconductor positioned about the optical waveguide on a second side of the optical waveguide's point of symmetry. A balanced receiver including first and second inputs is configured to produce an output current or voltage that reflects a difference in currents or voltages, originating from the first and the second photodiodes of the balanced cross correlator and fed to the first input and to the second input of the balanced receiver.

Nejadmalayeri, Amir Hossein; Kaertner, Franz X

2014-12-23T23:59:59.000Z

146

Inclusive jet cross section at CDF  

SciTech Connect (OSTI)

This contribution reports on preliminary measurements of the inclusive jet production cross section in p{bar p} collisions at {radical}s = 1.96 TeV using data collected with CDF corresponding to an integrated luminosity of 385 pb{sup -1}. Two analyzes are presented: one uses the longitudinally invariant k{sub T} algorithm to reconstruct the jets, the other uses the midpoint algorithm. Both are limited to jets with rapidity in the range 0.1 < |y{sup jet}| < 0.7. The measured cross sections are in good agreement with next-to-leading order perturbative QCD predictions after including the non-perturbative corrections necessary to account for underlying event and hadronization effects.

Lefevre, R.; Martinez, M.; /Barcelona, IFAE

2005-01-01T23:59:59.000Z

147

Electron capture cross sections for stellar nucleosynthesis  

E-Print Network [OSTI]

In the first stage of this work, we perform detailed calculations for the cross sections of the electron capture on nuclei under laboratory conditions. Towards this aim we exploit the advantages of a refined version of the proton-neutron quasi-particle random-phase approximation (pn-QRPA) and carry out state-by-state evaluations of the rates of exclusive processes that lead to any of the accessible transitions within the chosen model space. In the second stage of our present study, we translate the above mentioned $e^-$-capture cross sections to the stellar environment ones by inserting the temperature dependence through a Maxwell-Boltzmann distribution describing the stellar electron gas. As a concrete nuclear target we use the $^{66}Zn$ isotope, which belongs to the iron group nuclei and plays prominent role in stellar nucleosynthesis at core collapse supernovae environment.

Giannaka, P G

2015-01-01T23:59:59.000Z

148

A Cross-Layer Design for Decentralized Detection in Tree Sensor Networks  

E-Print Network [OSTI]

for sensors is developed. For tree networks, energy-efficient routing for signal detectioA Cross-Layer Design for Decentralized Detection in Tree Sensor Networks Ashraf Tantawy, Xenofon Koutsoukos, and Gautam Biswas Institute for Software Integrated Systems (ISIS) Department of Electrical

Koutsoukos, Xenofon D.

149

Asymptotic cross sections for composite projectile reactions  

E-Print Network [OSTI]

, the sum of elastic, excited, and ionized states. 42 Figure 8: Our First Born calculations are plotted against the RHF and FBBP results for a lithium ion projectile 43 Figure 9: We have plotted the ratio of our First Born cross sections with the FBBP... sections to those calculated through analytic methods for a helium ion projectile. Page Figure 12: A comparison of the ratio of our First Born Approximation to those calculated through analytic methods for a lithium ion projectile...

Neves, Andrea Marolt Pimenta

1995-01-01T23:59:59.000Z

150

Reservoir cross-over in entanglement dynamics  

E-Print Network [OSTI]

We study the effects of spontaneous emission on the entanglement dynamics of two qubits interacting with a common Lorentzian structured reservoir. We assume that the qubits are initially prepared in a Bell-like state. We focus on the strong coupling regime and study the entanglement dynamics for different regions of the spontaneous emission decay parameter. This investigation allows us to explore the cross-over between common and independent reservoirs in entanglement dynamics.

L. Mazzola; S. Maniscalco; K. -A. Suominen; B. M. Garraway

2009-08-28T23:59:59.000Z

151

Crossing the River: Xiangxi Miao Spirit Mediumship  

E-Print Network [OSTI]

one‘s own or the other clan, they can cause sufferings and misfortunes, and should be exorcised through performing rituals (Wu 2001: 72). However, rituals of exorcism are usually performed by the zimei medium after a period of several years... Crossing the River: Xiangxi Miao Spirit Mediumship By Copyright 2010 Hexian Wu Submitted to the graduate degree program in the Department of Anthropology and the Graduate Faculty of the University of Kansas in partial...

Wu, Hexian

2010-12-16T23:59:59.000Z

152

CROSS SECTION EVALUATIONS FOR ENDF/B-VII.  

SciTech Connect (OSTI)

This is the final report of the work performed under the LANL contract on neutron cross section evaluations for ENDF/B-VII (April 2005-May 2006). The purpose of the contract was to ensure seamless integration of the LANL neutron cross section evaluations in the new ENDF/B-VII library. The following work was performed: (1) LANL evaluated data files submitted for inclusion in ENDF/B-VII were checked and, when necessary, formal formatting errors were corrected. As a consequence, ENDF checking codes, run on all LANL files, do not report any errors that would rise concern. (2) LANL dosimetry evaluations for {sup 191}Ir and {sup 193}Ir were completed to match ENDF requirements for the general purpose library suitable for transport calculations. A set of covariances for both isotopes is included in the ENDF files. (3) Library of fission products was assembled and successfully tested with ENDF checking codes, processed with NJOY-99.125 and simple MCNP calculations. (4) KALMAN code has been integrated with the EMPIRE system to allow estimation of covariances based on the combination of measurements and model calculations. Covariances were produced for 155,157-Gd and also for 6 remaining isotopes of Gd.

HERMAN, M.; ROCHMAN, D.; OBLOZINSKY, P.

2006-06-05T23:59:59.000Z

153

Predicting violations at gated active highway-railroad grade crossings  

E-Print Network [OSTI]

-railroad grade crossing. It also was recommended that constant warning time devices be used whenever feasible with priority given to crossings with multiple tracks and/or average train speeds below 35 km/hr....

Bean, Jonathan Alan

1997-01-01T23:59:59.000Z

154

Smart Grid Conceptual Actors/Data Flow Diagram- Cross Domain...  

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

Smart Grid Conceptual ActorsData Flow Diagram- Cross Domain Network Focued- Open SGSG-Network TF Smart Grid Conceptual ActorsData Flow Diagram- Cross Domain Network Focued- Open...

155

Cross-study and cross-omics comparisons of three nephrotoxic compounds reveal mechanistic insights and new candidate biomarkers  

SciTech Connect (OSTI)

The European InnoMed-PredTox project was a collaborative effort between 15 pharmaceutical companies, 2 small and mid-sized enterprises, and 3 universities with the goal of delivering deeper insights into the molecular mechanisms of kidney and liver toxicity and to identify mechanism-linked diagnostic or prognostic safety biomarker candidates by combining conventional toxicological parameters with 'omics' data. Mechanistic toxicity studies with 16 different compounds, 2 dose levels, and 3 time points were performed in male Crl: WI(Han) rats. Three of the 16 investigated compounds, BI-3 (FP007SE), Gentamicin (FP009SF), and IMM125 (FP013NO), induced kidney proximal tubule damage (PTD). In addition to histopathology and clinical chemistry, transcriptomics microarray and proteomics 2D-DIGE analysis were performed. Data from the three PTD studies were combined for a cross-study and cross-omics meta-analysis of the target organ. The mechanistic interpretation of kidney PTD-associated deregulated transcripts revealed, in addition to previously described kidney damage transcript biomarkers such as KIM-1, CLU and TIMP-1, a number of additional deregulated pathways congruent with histopathology observations on a single animal basis, including a specific effect on the complement system. The identification of new, more specific biomarker candidates for PTD was most successful when transcriptomics data were used. Combining transcriptomics data with proteomics data added extra value.

Matheis, Katja A., E-mail: katja.matheis@boehringer-ingelheim.com [Boehringer Ingelheim Pharma GmbH and Co. KG, Biberach an der Riss (Germany); Com, Emmanuelle [Sanofi-Aventis, Paris (France); High-Throughput Proteomics Core Facility OUEST-genopole (registered) , Rennes (France); Gautier, Jean-Charles [Sanofi-Aventis, Paris (France); Guerreiro, Nelson [Novartis Institutes for BioMedical Research (NIBR), Basel (Switzerland); Brandenburg, Arnd; Gmuender, Hans [GeneData AG, Basel (Switzerland); Sposny, Alexandra; Hewitt, Philip [Merck KGaA, Darmstadt (Germany); Amberg, Alexander [Sanofi-Aventis, Frankfurt (Germany); Boernsen, Olaf [Novartis Institutes for BioMedical Research (NIBR), Basel (Switzerland); Riefke, Bjoern [Bayer Schering Pharma AG, Berlin (Germany); Hoffmann, Dana; Mally, Angela [Department of Toxicology, University of Wuerzburg, Wuerzburg (Germany); Kalkuhl, Arno [Boehringer Ingelheim Pharma GmbH and Co. KG, Biberach an der Riss (Germany); Suter, Laura [F. Hoffmann-La Roche, Ltd., Basel (Switzerland); Dieterle, Frank; Staedtler, Frank [Novartis Institutes for BioMedical Research (NIBR), Basel (Switzerland)

2011-04-15T23:59:59.000Z

156

Computer solution of SU(3) crossing matrices for the Kronecker Product 8 x 10  

E-Print Network [OSTI]

'/ ( Iber ) December 1975 111 ABSTRACT COMPUTER SOLUTIOM OF SU (3) CROSSING YiATRICES FOR THE KRONECKFR PRODUCT 8 X 10. ( December 197S) Alan Harvey Wells, B. S. , Stevens Institute of Technology; Directed by: Dr. Udo W. Pooch SV(3) Crossing Natrices... to validate the algorithm. ACKNOWLEDGEMENTS I wish to express my appreciation to= Dr. Udo W. Pooch for his assistance in developing this thesis; Mr. J. C. R. Forehand for his instruction in the intricacies of IBM computer systems; My wife Kathy Jane...

Wells, Alan Harvey

1975-01-01T23:59:59.000Z

157

Developments to watch/cross flow of air is effective for separating coal from pyrite  

SciTech Connect (OSTI)

Cross flow of air is effective for separating coal from pyrite, limestone, clay, and shale while in the dry state to achieve a concentration of 90% purity at a competitive cost, according to West Virginia University Coal Research Bureau. The coal is crushed, screened to size, and placed in a vibrating feeder modified by adding small ridges parallel to the vibrating motion on the plate surface. The plate motion moves lighter coal particles slightly higher than the same size, heavier waste particles. A cross flow of air, which blows perpendicular to the vibratory motion, enhances the separation system.

Not Available

1980-11-01T23:59:59.000Z

158

Software Engineering Students' Cross-site Collaboration: An Experience Report  

E-Print Network [OSTI]

Software Engineering Students' Cross-site Collaboration: An Experience Report Sarah Drummond Dept their site's Software Engineering (SE) modules and provided strategic coupling of cross-site student groups and hence their employability. Keywords Software Engineering, Cross-site collaboration, Video conferencing 1

Newcastle upon Tyne, University of

159

American Red Cross VOLUNTEER SERVICE AGREEMENT FOR DISASTER OPERATIONS  

E-Print Network [OSTI]

American Red Cross VOLUNTEER SERVICE AGREEMENT FOR DISASTER OPERATIONS I and maintenance costs will be reimbursed by the American Red Cross, pursuant to Staff Reimbursement Procedures the American Red Cross while I am performing disaster relief work. Furthermore, I understand and accept that

Wu, Shin-Tson

160

Designing Precast Concrete Cross Wall Joints Against Progressive Collapse  

E-Print Network [OSTI]

Designing Precast Concrete Cross Wall Joints Against Progressive Collapse Researcher: Mohamad concrete cross wall constructions. Ronan Point Collapse (http://en.wikipedia.org/wiki/Ronan_Point) #12;Due gap is listed as follows: · Limited number of studies for designing precast concrete cross wall

Birmingham, University of

Note: This page contains sample records for the topic "thunderstorm system crossed" 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

Charge structure and lightning sensitivity in a simulated multicell thunderstorm  

E-Print Network [OSTI]

continental multicell storm. Five laboratory-based parameterizations of noninductive graupel-ice charge for rebounding graupel-droplet collisions. Each noninductive graupel-ice parameterization is combined. [3] Only a few studies have employed multidimensional dynamical simulation models with predicted ice-phase

Mansell, Edward "Ted"

162

Tornado Dynamics Klemp (1987) Dynamics of Tornadic Thunderstorms (handout)  

E-Print Network [OSTI]

to 300 miles per hour. (American Heritage Dictionary of the English Language) This definition reflects and North Texas through Oklahoma, central and eastern Kansas, and into eastern Nebraska. This region during the late afternoon and evening hours in the late spring. This suggests that solar heating plays

Droegemeier, Kelvin K.

163

Cross sections and barriers for nuclear fission induced by high-energy nucleons  

SciTech Connect (OSTI)

The cross sections for the fission of {sup 232}Th, {sup 235,238}U, {sup 237}Np, and {sup 239}Pu target nuclei that was induced by 20- to 1000-MeV neutrons and protons were calculated. The respective calculations were based on the multiconfiguration-fission (MCFx) model, which was used to describe three basic stages of the interaction of high-energy nucleons with nuclei: direct processes (intranuclear cascade), equilibration of the emerging compound system, and the decay of the compound nucleus (statistical model). Fission barriers were calculated within the microscopic approach for isotopic chains formed by 15 to 20 nuclei of the required elements. The calculated fission cross sections were compared with available experimental data. It was shown that the input data set and the theoretical model used made it possible to predict satisfactorily cross section for nuclear fission induced by 20- to 1000-MeV nucleons.

Grudzevich, O. T., E-mail: ogrudzevich@ippe.ru [Leipunsky Institute for Physics and Power Engineering (Russian Federation); Yavshits, S. G. [Khlopin Radium Institute (Russian Federation)] [Khlopin Radium Institute (Russian Federation)

2013-03-15T23:59:59.000Z

164

Fusion cross sections at deep subbarrier energies  

E-Print Network [OSTI]

A recent publication reports that heavy-ion fusion cross sections at extreme subbarrier energies show a continuous change of their logarithmic slope with decreasing energy, resulting in a much steeper excitation function compared with theoretical predictions. We show that the energy dependence of this slope is partly due to the asymmetric shape of the Coulomb barrier, that is its deviation from a harmonic shape. We also point out that the large low-energy slope is consistent with the surprisingly large surface diffusenesses required to fit recent high-precision fusion data.

K. Hagino; N. Rowley; M. Dasgupta

2003-02-12T23:59:59.000Z

165

Contraction of cross-linked actomyosin bundles  

E-Print Network [OSTI]

Cross-linked actomyosin bundles retract when severed in vivo by laser ablation, or when isolated from the cell and micromanipulated in vitro in the presence of ATP. We identify the time scale for contraction as a viscoelastic time tau, where the viscosity is due to (internal) protein friction. We obtain an estimate of the order of magnitude of the contraction time tau ~ 10-100 s, consistent with available experimental data for circumferential microfilament bundles and stress fibers. Our results are supported by an exactly solvable, hydrodynamic model of a retracting bundle as a cylinder of isotropic, active matter, from which the order of magnitude of the active stress is estimated.

Natsuhiko Yoshinaga; Philippe Marcq

2012-06-08T23:59:59.000Z

166

Cross section for charmonium absorption by nucleons  

E-Print Network [OSTI]

July 2001; publishe The cross section for J/c absorption by nucleons is with empirical particle masses, which has been used previousl by pion and r meson. Including both two-body and three-bod of 1 GeV at interaction vertices involving charm hadrons... and is consistent with that extracted from J/c productio DOI: 10.1103/PhysRevC.65.015203 PAC I. INTRODUCTION Two main mechanisms for J/c suppression observed in relativistic heavy ion collisions @1# are the dissociation by the quark-gluon plasma @2...

Liu, W.; Ko, Che Ming; Lin, ZW.

2002-01-01T23:59:59.000Z

167

Cross Sections for Nuclei A = 3 - 20  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to User GroupInformationE-GovNaturalInstitute CriticalCross Sections

168

Phase diagram of selectively cross-linked block copolymers shows chemically microstructured gel  

E-Print Network [OSTI]

We study analytically the intricate phase behavior of cross-linked $AB$ diblock copolymer melts, which can undergo two main phase transitions due to quenched random constraints: Gelation, i.e., spatially random localization of polymers forming a system-spanning cluster, is driven by increasing the number parameter $\\mu$ of irreversible, type-selective cross-links between random pairs of $A$ blocks. Self-assembly into a periodic pattern of $A$/$B$-rich microdomains (microphase separation) is controlled by the $AB$ incompatibility $\\chi$ inversely proportional to temperature. Our model aims to capture the system's essential microscopic features, including an ensemble of random networks that reflects spatial correlations at the instant of cross-linking. We identify suitable order parameters and derive a free-energy functional in the spirit of Landau theory that allows us to trace a phase diagram in the plane of $\\mu$ and $\\chi$. Selective cross-links promote microphase separation at higher critical temperatures than in uncross-linked diblock copolymer melts. Microphase separation in the liquid state facilitates gelation, giving rise to a novel gel state whose chemical composition density mirrors the periodic $AB$ pattern.

Alice von der Heydt; Annette Zippelius

2014-09-29T23:59:59.000Z

169

Informatics Strategies for Large-Scale Novel Cross-linking Analysis  

SciTech Connect (OSTI)

The analysis of protein interactions in biological systems represents a significant challenge for today's technology. Chemical cross-linking provides the potential to impart new chemical bonds in a complex system that result in mass changes in the analysis of a set of tryptic peptides. However, system complexity and cross-linking product heterogeneity have precluded widespread chemical cross-linking use for large-scale identification of protein-protein interactions.The development of mass spectrometry identifiable cross-linkers called Protein Interaction Reporters (PIRs) has enabled on-cell chemical cross-linking experiments with product type differentiation. However, the complex datasets resultant from PIR experiments demand new informatics capabilities to allow interpretation. This manuscript details our efforts to develop such capabilities and describes the program X-links which allows PIR product type differentiation. Furthermore, we also present the results from Monte Carlo simulation of PIRtype experiments to provide false positive identification rate estimates for the PIR product type identification through observed precursor and released peptide masses. Our simulations also provide peptide identification calculations based on accurate masses and database complexity that can provide an estimation of false positive rates for peptide identification. Overall, the calculations show a low rate of false positive identification of PIR product types due to random mass matching of approximately 12% with 10 ppm mass measurement accuracy. In addition, consideration of a reduced database resulting from stage 1 analysis of Shewanella oneidensis MR-1 containing 367 proteins resulted in a significant reduction of expected identification false positive identification rate estimation compared to that from the entire Shewanella oneidensis MR-1 proteome.

Anderson, Gordon A.; Tolic, Nikola; Tang, Xiaoting; Zheng, Chunxiang; Bruce, James E.

2007-08-03T23:59:59.000Z

170

Informatics Strategies for Large-Scale Novel Cross-linking Analysis  

SciTech Connect (OSTI)

The analysis of protein interactions in biological systems represents a significant challenge for today's technology. Chemical cross-linking provides the potential to impart new chemical bonds in a complex system that result in mass changes in the analysis of a set of tryptic peptides. However, system complexity and cross-linking product heterogeneity have precluded widespread chemical cross-linking use for large-scale identification of protein-protein interactions. The development of mass spectrometry identifiable cross-linkers called Protein Interaction Reporters (PIRs) has enabled on-cell chemical cross-linking experiments with product type differentiation. However, the complex datasets resultant from PIR experiments demand new informatics capabilities to allow interpretation. This manuscript details our efforts to develop such capabilities and describes the program X-links which allows PIR product type differentiation. Furthermore, we also present the results from Monte Carlo simulation of PIRtype experiments to provide false positive identification rate estimates for the PIR product type identification through observed precursor and released peptide masses. Our simulations also provide peptide identification calculations based on accurate masses and database complexity that can provide an estimation of false positive rates for peptide identification. Overall, the calculations show a low rate of false positive identification of PIR product types due to random mass matching of approximately 12% with 10 ppm mass measurement accuracy. In addition, consideration of a reduced database resulting from stage 1 analysis of Shewanella oneidensis MR-1 containing 367 proteins resulted in a significant reduction of expected identification false positive identification rate estimation compared to that from the entire Shewanella oneidensis MR-1 proteome.

Anderson, Gordon A.; Tolic, Nikola; Tang, Xiaoting; Zheng, Chunxiang; Bruce, James E.

2007-09-01T23:59:59.000Z

171

Correlation cross sections along the international border  

SciTech Connect (OSTI)

The Manitoba-North Dakota (Canada-US) stratigraphic correlation project is a joint study between the Petroleum Branch of Manitoba Energy and Mines and the North Dakota Geological Survey. It is an attempt to correlate the differing stratigraphic terminologies established in the two jurisdictions by providing a reference cross section across the international boundary. The study involves the subsurface correlation of logs of the Paleozoic and Mesozoic sequences in the Manitoba and North Dakota portions of the Williston basin. The Paleozoic and Mesozoic sequences are subdivided for presentation into the following stratigraphic intervals: (a) Cambrian-Ordovician-Silurian, (b) Devonian, (c) Mississippian, (d) Jurassic, and (e) Cretaceous. Wireline logs show the actual stratigraphic correlations. A nomenclature chart is also presented from each sequence. In addition, the sections include a generalized description of lithologies, thicknesses, environments of deposition, and petroleum potential for each geographic area.

Martiniuk, C.D. (Manitoba Energy and Mines, Winnipeg (Canada)); Le Fever, J.A.; Anderson, S.B. (North Dakota Geological Survey, Grand Forks (United States))

1991-06-01T23:59:59.000Z

172

ISSUES IN NEUTRON CROSS SECTION COVARIANCES  

SciTech Connect (OSTI)

We review neutron cross section covariances in both the resonance and fast neutron regions with the goal to identify existing issues in evaluation methods and their impact on covariances. We also outline ideas for suitable covariance quality assurance procedures.We show that the topic of covariance data remains controversial, the evaluation methodologies are not fully established and covariances produced by different approaches have unacceptable spread. The main controversy is in very low uncertainties generated by rigorous evaluation methods and much larger uncertainties based on simple estimates from experimental data. Since the evaluators tend to trust the former, while the users tend to trust the latter, this controversy has considerable practical implications. Dedicated effort is needed to arrive at covariance evaluation methods that would resolve this issue and produce results accepted internationally both by evaluators and users.

Mattoon, C.M.; Oblozinsky,P.

2010-04-30T23:59:59.000Z

173

Time Synchronization Attack in Smart Grid-Part II: Cross Layer Detection Mechanism  

E-Print Network [OSTI]

A novel time synchronization attack (TSA) on wide area monitoring systems in smart grid has been identified in the first part of this paper. A cross layer detection mechanism is proposed to combat TSA in part II of this paper. In the physical layer, we propose a GPS carrier signal noise ratio (C/No) based spoofing detection technique. In addition, a patch-monopole hybrid antenna is applied to receive GPS signal. By computing the standard deviation of the C/No difference from two GPS receivers, a priori probability of spoofing detection is fed to the upper layer, where power system state is estimated and controlled. A trustworthiness based evaluation method is applied to identify the PMU being under TSA. Both the physical layer and upper layer algorithms are integrated to detect the TSA, thus forming a cross layer mechanism. Experiment is carried out to verify the effectiveness of the proposed TSA detection algorithm.

Zhang, Zhenghao; Dimitrovski, Aleksandar D; Li, Husheng

2012-01-01T23:59:59.000Z

174

SAFETY ANALYSIS ON RAIL HIGHWAY AT-GRADE CROSSING IN ALABAMA  

E-Print Network [OSTI]

Administration (FRA) database · Highway-rail crossing inventory · Highway-rail crossing history file · Highway-rail crossing accident database Alabama Department of Transportation (ALDOT) database · Rail-highway at,720 RHGCs FRA highway-rail crossing history file Crossing ID Crossing characteristics Crash count over 1998

Illinois at Urbana-Champaign, University of

175

Higgs Boson Fiducial Cross Sections and Differential Distributions  

E-Print Network [OSTI]

In this talk we present the fiducial cross-section measurements and the differential distributions of the Higgs boson, in the ZZ->4l and gamma gamma channels.

Gao, Yanyan; The ATLAS collaboration

2015-01-01T23:59:59.000Z

176

The Born Oppenheimer wave function near level crossing  

E-Print Network [OSTI]

The standard Born Oppenheimer theory does not give an accurate description of the wave function near points of level crossing. We give such a description near an isotropic conic crossing, for energies close to the crossing energy. This leads to the study of two coupled second order ordinary differential equations whose solution is described in terms of the generalized hypergeometric functions of the kind 0F3(;a,b,c;z). We find that, at low angular momenta, the mixing due to crossing is surprisingly large, scaling like \\mu^(1/6), where \\mu is the electron to nuclear mass ratio.

J. E. Avron; A. Gordon

2000-08-22T23:59:59.000Z

177

High PID Resistant Cross-Linked Encapsulnt Based on Polyolefin...  

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

on Polyolefin SOLAR ASCE High PID Resistant Cross-Linked Encapsulnt Based on Polyolefin SOLAR ASCE Presented at the PV Module Reliability Workshop, February 26 - 27 2013, Golden,...

178

Thermal Hydraulic Modeling: Cross-Verification, Validation and...  

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

Aleks Obabko, Paul Fischer, and Tim Tautges, Argonne National Laboratory Thermal Hydraulic Modeling: Cross-Verification, Validation and Co-design PI Name: Paul F. Fischer PI...

179

arbitrary cross section: Topics by E-print Network  

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

Astrophysics (arXiv) Summary: We review and analyze the available information for nuclear fusion cross sections that are most important for solar energy generation and...

180

arbitrary cross sections: Topics by E-print Network  

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

Astrophysics (arXiv) Summary: We review and analyze the available information for nuclear fusion cross sections that are most important for solar energy generation and...

Note: This page contains sample records for the topic "thunderstorm system crossed" from the National Library of EnergyBeta (NLEBeta).
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181

Positive Scattering Cross Sections using Constrained Least Squares  

SciTech Connect (OSTI)

A method which creates a positive Legendre expansion from truncated Legendre cross section libraries is presented. The cross section moments of order two and greater are modified by a constrained least squares algorithm, subject to the constraints that the zeroth and first moments remain constant, and that the standard discrete ordinate scattering matrix is positive. A method using the maximum entropy representation of the cross section which reduces the error of these modified moments is also presented. These methods are implemented in PARTISN, and numerical results from a transport calculation using highly anisotropic scattering cross sections with the exponential discontinuous spatial scheme is presented.

Dahl, J.A.; Ganapol, B.D.; Morel, J.E.

1999-09-27T23:59:59.000Z

182

SCWR Once-Through Calculations for Transmutation and Cross Sections  

SciTech Connect (OSTI)

It is the purpose of this report to document the calculation of (1) the isotopic evolution and of (2) the 1-group cross sections as a function of burnup of the reference Super Critical Water Reactor (SCWR), in a format suitable for the Fuel Cycle Option Campaign Transmutation Data Library. The reference SCWR design was chosen to be that described in [McDonald, 2005]. Super Critical Water Reactors (SCWR) are intended to operate with super-critical water (i.e. H2O at a pressure above 22 MPa and a temperature above 373oC) as a cooling – and possibly also moderating – fluid. The main mission of the SCWR is to generate lower cost electricity, as compared to current standard Light Water Reactors (LWR). Because of the high operating pressure and temperature, SCWR feature a substantially higher thermal conversion efficiency than standard LWR – i.e. about 45% versus 33%, mostly due to an increase in the exit water temperature from ~300oC to ~500oC – potentially resulting in a lower cost of generated electricity. The coolant remains single phase throughout the reactor and the energy conversion system, thus eliminating the need for pressurizers, steam generators, steam separators and dryers, further potentially reducing the reactor construction capital cost. The SCWR concept presented here is based on existing LWR technology and on a large number of existing fossil-fired supercritical boilers. However, it was concluded in [McDonald, 2005], that: “Based on the results of this study, it appears that the reference SCWR design is not feasible.” This conclusion appears based on the strong sensitivity of the design to small deviations in nominal conditions leading to small effects having a potentially large impact on the peak cladding temperature of some fuel rods. “This was considered a major feasibility issue for the SCWR” [McDonald, 2005]. After a description of the reference SCWR design, the Keno V 3-D single assembly model used for this analysis, as well as the calculated results, are presented. Additionally, the follwing information, presented in the appendixes, is intended to provide enough guidance that a researcher repeating the same task in the future should be able to obtain a vector of nuclei and cross sections ready for insertion into the transmutation library without any need for further instructions: (1) Complete TRITON/KENO-V input used for the analysis; (2) Inputs and detailed description of the usage of the OPUS utility, used to postproces and to extract the nuclei concentrations for the transmutation library; (3) Inputs and detailed description of the usage of the XSECLIST utility, used to postproces and to extract the 1-group cross sections for the transmutation library; (4) Details of an ad-hoc utility program developed to sort the nuclei and cross sections for the transmutation library.

ganda, francesco (090771)

2012-07-01T23:59:59.000Z

183

AFCI-2.0 Neutron Cross Section Covariance Library  

SciTech Connect (OSTI)

The cross section covariance library has been under development by BNL-LANL collaborative effort over the last three years. The project builds on two covariance libraries developed earlier, with considerable input from BNL and LANL. In 2006, international effort under WPEC Subgroup 26 produced BOLNA covariance library by putting together data, often preliminary, from various sources for most important materials for nuclear reactor technology. This was followed in 2007 by collaborative effort of four US national laboratories to produce covariances, often of modest quality - hence the name low-fidelity, for virtually complete set of materials included in ENDF/B-VII.0. The present project is focusing on covariances of 4-5 major reaction channels for 110 materials of importance for power reactors. The work started under Global Nuclear Energy Partnership (GNEP) in 2008, which changed to Advanced Fuel Cycle Initiative (AFCI) in 2009. With the 2011 release the name has changed to the Covariance Multigroup Matrix for Advanced Reactor Applications (COMMARA) version 2.0. The primary purpose of the library is to provide covariances for AFCI data adjustment project, which is focusing on the needs of fast advanced burner reactors. Responsibility of BNL was defined as developing covariances for structural materials and fission products, management of the library and coordination of the work; LANL responsibility was defined as covariances for light nuclei and actinides. The COMMARA-2.0 covariance library has been developed by BNL-LANL collaboration for Advanced Fuel Cycle Initiative applications over the period of three years, 2008-2010. It contains covariances for 110 materials relevant to fast reactor R&D. The library is to be used together with the ENDF/B-VII.0 central values of the latest official release of US files of evaluated neutron cross sections. COMMARA-2.0 library contains neutron cross section covariances for 12 light nuclei (coolants and moderators), 78 structural materials and fission products, and 20 actinides. Covariances are given in 33-energy groups, from 10?5 eV to 19.6 MeV, obtained by processing with LANL processing code NJOY using 1/E flux. In addition to these 110 files, the library contains 20 files with nu-bar covariances, 3 files with covariances of prompt fission neutron spectra (238,239,240-Pu), and 2 files with mu-bar covariances (23-Na, 56-Fe). Over the period of three years several working versions of the library have been released and tested by ANL and INL reactor analysts. Useful feedback has been collected allowing gradual improvements of the library. In addition, QA system was developed to check basic properties and features of the whole library, allowing visual inspection of uncertainty and correlations plots, inspection of uncertainties of integral quantities with independent databases, and dispersion of cross sections between major evaluated libraries. The COMMARA-2.0 beta version of the library was released to ANL and INL reactor analysts in October 2010. The final version, described in the present report, was released in March 2011.

Herman, M.; Herman, M; Oblozinsky, P.; Mattoon, C.M.; Pigni, M.; Hoblit, S.; Mughabghab, S.F.; Sonzogni, A.; Talou, P.; Chadwick, M.B.; Hale, G.M.; Kahler, A.C.; Kawano, T.; Little, R.C.; Yount, P.G.

2011-03-01T23:59:59.000Z

184

Validation of the WIMSD4M cross-section generation code with benchmark results  

SciTech Connect (OSTI)

The WIMSD4 code has been adopted for cross-section generation in support of the Reduced Enrichment Research and Test Reactor (RERTR) program at Argonne National Laboratory (ANL). Subsequently, the code has undergone several updates, and significant improvements have been achieved. The capability of generating group-collapsed micro- or macroscopic cross sections from the ENDF/B-V library and the more recent evaluation, ENDF/B-VI, in the ISOTXS format makes the modified version of the WIMSD4 code, WIMSD4M, very attractive, not only for the RERTR program, but also for the reactor physics community. The intent of the present paper is to validate the WIMSD4M cross-section libraries for reactor modeling of fresh water moderated cores. The results of calculations performed with multigroup cross-section data generated with the WIMSD4M code will be compared against experimental results. These results correspond to calculations carried out with thermal reactor benchmarks of the Oak Ridge National Laboratory (ORNL) unreflected HEU critical spheres, the TRX LEU critical experiments, and calculations of a modified Los Alamos HEU D{sub 2}O moderated benchmark critical system. The benchmark calculations were performed with the discrete-ordinates transport code, TWODANT, using WIMSD4M cross-section data. Transport calculations using the XSDRNPM module of the SCALE code system are also included. In addition to transport calculations, diffusion calculations with the DIF3D code were also carried out, since the DIF3D code is used in the RERTR program for reactor analysis and design. For completeness, Monte Carlo results of calculations performed with the VIM and MCNP codes are also presented.

Deen, J.R.; Woodruff, W.L. [Argonne National Lab., IL (United States); Leal, L.E. [Oak Ridge National Lab., TN (United States)

1995-01-01T23:59:59.000Z

185

Validation of the WIMSD4M cross-section generation code with benchmark results  

SciTech Connect (OSTI)

The WIMSD4 code has been adopted for cross-section generation in support of the Reduced Enrichment for Research and Test (RERTR) program at Argonne National Laboratory (ANL). Subsequently, the code has undergone several updates, and significant improvements have been achieved. The capability of generating group-collapsed micro- or macroscopic cross sections from the ENDF/B-V library and the more recent evaluation, ENDF/B-VI, in the ISOTXS format makes the modified version of the WIMSD4 code, WIMSD4M, very attractive, not only for the RERTR program, but also for the reactor physics community. The intent of the present paper is to validate the procedure to generate cross-section libraries for reactor analyses and calculations utilizing the WIMSD4M code. To do so, the results of calculations performed with group cross-section data generated with the WIMSD4M code will be compared against experimental results. These results correspond to calculations carried out with thermal reactor benchmarks of the Oak Ridge National Laboratory(ORNL) unreflected critical spheres, the TRX critical experiments, and calculations of a modified Los Alamos highly-enriched heavy-water moderated benchmark critical system. The benchmark calculations were performed with the discrete-ordinates transport code, TWODANT, using WIMSD4M cross-section data. Transport calculations using the XSDRNPM module of the SCALE code system are also included. In addition to transport calculations, diffusion calculations with the DIF3D code were also carried out, since the DIF3D code is used in the RERTR program for reactor analysis and design. For completeness, Monte Carlo results of calculations performed with the VIM and MCNP codes are also presented.

Leal, L.C. [Oak Ridge National Lab., TN (United States); Deen, J.R.; Woodruff, W.L. [Argonne National Lab., IL (United States)

1995-02-01T23:59:59.000Z

186

An integrated modeling framework for infrastructure system-of-systems simulation  

E-Print Network [OSTI]

Design of future hard infrastructure must consider emergent behaviors from cross-system interdependencies. Understanding these interdependencies is challenging due to high levels of integration in high-performance systems ...

de Weck, Olivier L.

187

Elastic scattering and total reaction cross section of {sup 6}He+{sup 120}Sn  

SciTech Connect (OSTI)

The elastic scattering of {sup 6}He on {sup 120}Sn has been measured at four energies above the Coulomb barrier using the {sup 6}He beam produced at the RIBRAS (Radioactive Ion Beams in Brasil) facility. The elastic angular distributions have been analyzed with the optical model and three- and four-body continuum-discretized coupled-channels calculations. The total reaction cross sections have been derived and compared with other systems of similar masses.

Faria, P. N. de; Lichtenthaeler, R.; Pires, K. C. C.; Lepine-Szily, A.; Guimaraes, V.; Mendes, D. R. Jr.; Barioni, A.; Morcelle, V.; Morais, M. C.; Camargo, O. Jr.; Alcantara Nunez, J. [Instituto de Fisica-Universidade de Sao Paulo, C. P. 66318, 05389-970 Sao Paulo, SP (Brazil); Moro, A. M. [Departamento de FAMN, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla (Spain); Arazi, A. [Laboratorio Tandar, Comision Nacional de Energia Atomica, Av. del Libertador 8250, 1429 Buenos Aires (Argentina); Rodriguez-Gallardo, M. [Departamento de FAMN, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla (Spain); Instituto de Estructura de la Materia, CSIC, Serrano 123, E-28006 Madrid (Spain); Assuncao, M. [Universidade Federal de Sao Paulo, Campus Diadema, 09941-510 Sao Paulo, SP (Brazil)

2010-04-15T23:59:59.000Z

188

A cross-calibration between Tycho-2 photometry and HST spectrophotometry  

E-Print Network [OSTI]

I show that Tycho-2 photometry and HST spectrophotometry are accurate and stable enough to obtain a precise cross-calibration by analyzing a well-calibrated sample of 256 stars observed with both Hipparcos and HST. Based on this analysis, I obtain the following photometric zero points in the Vega magnitude system for Tycho-2: 0.020+-0.001 (B_T-V_T), 0.078+-0.009 (B_T), and 0.058+-0.009 (V_T).

J. Maíz-Apellániz

2005-04-07T23:59:59.000Z

189

Cross Sections for Inner-Shell Ionization by Electron Impact  

SciTech Connect (OSTI)

An analysis is presented of measured and calculated cross sections for inner-shell ionization by electron impact. We describe the essentials of classical and semiclassical models and of quantum approximations for computing ionization cross sections. The emphasis is on the recent formulation of the distorted-wave Born approximation by Bote and Salvat [Phys. Rev. A 77, 042701 (2008)] that has been used to generate an extensive database of cross sections for the ionization of the K shell and the L and M subshells of all elements from hydrogen to einsteinium (Z = 1 to Z = 99) by electrons and positrons with kinetic energies up to 1 GeV. We describe a systematic method for evaluating cross sections for emission of x rays and Auger electrons based on atomic transition probabilities from the Evaluated Atomic Data Library of Perkins et al. [Lawrence Livermore National Laboratory, UCRL-ID-50400, 1991]. We made an extensive comparison of measured K-shell, L-subshell, and M-subshell ionization cross sections and of L? x-ray production cross sections with the corresponding calculated cross sections. We identified elements for which there were at least three (for K shells) or two (for L and M subshells) mutually consistent sets of cross-section measurements and for which the cross sections varied with energy as expected by theory. The overall average root-mean-square deviation between the measured and calculated cross sections was 10.9% and the overall average deviation was ?2.5%. This degree of agreement between measured and calculated ionization and x-ray production cross sections was considered to be very satisfactory given the difficulties of these measurements.

Llovet, Xavier, E-mail: xavier@ccit.ub.edu [Centres Científics i Tecnològics, Universitat de Barcelona, Lluís Solé i Sabarís 1-3, 08028 Barcelona (Spain)] [Centres Científics i Tecnològics, Universitat de Barcelona, Lluís Solé i Sabarís 1-3, 08028 Barcelona (Spain); Powell, Cedric J. [Materials Measurement Science Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8370 (United States)] [Materials Measurement Science Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8370 (United States); Salvat, Francesc [Facultat de Física (ECM and ICC), Universitat de Barcelona, Diagonal 645, 08028 Barcelona (Spain)] [Facultat de Física (ECM and ICC), Universitat de Barcelona, Diagonal 645, 08028 Barcelona (Spain); Jablonski, Aleksander [Institute of Physical Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, 01-224 Warsaw (Poland)] [Institute of Physical Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, 01-224 Warsaw (Poland)

2014-03-15T23:59:59.000Z

190

Hill crossing during preheating after hilltop inflation  

E-Print Network [OSTI]

In 'hilltop inflation', inflation takes place when the inflaton field slowly rolls from close to a maximum of its potential (i.e. the 'hilltop') towards its minimum. When the inflaton potential is associated with a phase transition, possible topological defects produced during this phase transition, such as domain walls, are efficiently diluted during inflation. It is typically assumed that they also do not reform after inflation, i.e. that the inflaton field stays on its side of the 'hill', finally performing damped oscillations around the minimum of the potential. In this paper we study the linear and the non-linear phases of preheating after hilltop inflation. We find that the fluctuations of the inflaton field during the tachyonic oscillation phase grow strong enough to allow the inflaton field to form regions in position space where it crosses 'over the top of the hill' towards the 'wrong vacuum'. We investigate the formation and behaviour of these overshooting regions using lattice simulations: Rather than durable domain walls, these regions form oscillon-like structures (i.e. localized bubbles that oscillate between the two vacua) which should be included in a careful study of preheating in hilltop inflation.

Stefan Antusch; David Nolde; Stefano Orani

2015-03-20T23:59:59.000Z

191

Rotation Curve Measurement using Cross-Correlation  

E-Print Network [OSTI]

Longslit spectroscopy is entering an era of increased spatial and spectral resolution and increased sample size. Improved instruments reveal complex velocity structure that cannot be described with a one-dimensional rotation curve, yet samples are too numerous to examine each galaxy in detail. Therefore, one goal of rotation curve measurement techniques is to flag cases in which the kinematic structure of the galaxy is more complex than a single-valued curve. We examine cross-correlation as a technique that is easily automated and works for low signal-to-noise spectra. We show that the technique yields well-defined errors which increase when the simple spectral model (template) is a poor match to the data, flagging those cases for later inspection. We compare the technique to the more traditional, parametric technique of simultaneous emission line fitting. When the line profile at a single slit position is non-Gaussian, the techniques disagree. For our model spectra with two well-separated velocity components, assigned velocities from the two techniques differ by up to ~52% of the velocity separation of the model components. However, careful use of the error statistics for either technique allows one to flag these non-Gaussian spectra.

Elizabeth J. Barton; Sheila J. Kannappan; Michael J. Kurtz; Margaret J. Geller

2000-06-20T23:59:59.000Z

192

Hill crossing during preheating after hilltop inflation  

E-Print Network [OSTI]

In 'hilltop inflation', inflation takes place when the inflaton field slowly rolls from close to a maximum of its potential (i.e. the 'hilltop') towards its minimum. When the inflaton potential is associated with a phase transition, possible topological defects produced during this phase transition, such as domain walls, are efficiently diluted during inflation. It is typically assumed that they also do not reform after inflation, i.e. that the inflaton field stays on its side of the 'hill', finally performing damped oscillations around the minimum of the potential. In this paper we study the linear and the non-linear phases of preheating after hilltop inflation. We find that the fluctuations of the inflaton field during the tachyonic oscillation phase grow strong enough to allow the inflaton field to form regions in position space where it crosses 'over the top of the hill' towards the 'wrong vacuum'. We investigate the formation and behaviour of these overshooting regions using lattice simulations: Rather t...

Antusch, Stefan; Orani, Stefano

2015-01-01T23:59:59.000Z

193

Anthem Blue Cross/Anthem Blue Cross Life and Health Insurance Company (P-NP) 6/13/2011 University of California  

E-Print Network [OSTI]

Anthem Blue Cross/Anthem Blue Cross Life and Health Insurance Company (P-NP) 6/13/2011 University that all sections of the claim form are completed and mail to: Anthem Blue Cross Prescription Drug Program

Kammen, Daniel M.

194

Bimanual cross-coupling in space telerobotics  

E-Print Network [OSTI]

Astronauts spend much time training to control the robotic arm aboard the International Space Station, and must perform a variety of challenging, three-dimensional tasks. They use a unique, bimanual control system to control ...

Wang, Victor, S.M. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

195

Phase-controlled pulse propagation in media with cross coupling of electric and magnetic probe field component  

SciTech Connect (OSTI)

Light propagation is discussed in media with a cross coupling of the electric and magnetic component of an applied probe field. We derive the wave equations for a probe pulse propagating through such a medium and solve them analytically in Fourier space using the slowly varying envelope approximation. Our analysis reveals the influence of the different medium response coefficients on the propagation dynamics. We apply these results to a specific example system in which cross couplings are induced in an atomic medium by additional control fields. We show that the cross couplings render the propagation dynamics sensitive to the relative phase of the additional fields, and this phase dependence enables one to control the pulse during its propagation through the medium. Our results demonstrate that the magnetic field component of a probe beam can crucially influence the system dynamics already at experimentally accessible parameter ranges in dilute vapors.

Fleischhaker, Robert; Evers, Joerg [Max-Planck-Institut fuer Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg (Germany)

2009-12-15T23:59:59.000Z

196

Cost Estimation for Cross-organizational ERP Projects: Research Perspectives  

E-Print Network [OSTI]

Cost Estimation for Cross-organizational ERP Projects: Research Perspectives Maya Daneva, Roel There are many methods for estimating size, effort, schedule and other cost aspects of IS projects, but only one domain of cross-organizational ERP cost estimation, to survey available solutions, and to propose

Wieringa, Roel

197

PRELIMINARY LES OVER A HYPERSONIC ELLIPTICAL CROSS-SECTION CONE  

E-Print Network [OSTI]

PRELIMINARY LES OVER A HYPERSONIC ELLIPTICAL CROSS-SECTION CONE M.P. MARTIN Mechanical. The characteristics of the hypersonic flow around an elliptical- cross section cone and the computational code of transitional and turbulent flows are not fully understood. This is especially true in the hypersonic regime

Martín, Pino

198

Standard Cross-Cultural Sample1 (updated September 2008)  

E-Print Network [OSTI]

Standard Cross-Cultural Sample1 : on-line (updated September 2008) George P. Murdock and Douglas R. White University of Pittsburgh ABSTRACT: The Standard Cross-Cultural Sample contains the best also provides standard Galton's problem controls for historical nonindependence of cases

White, Douglas R.

199

Analysis of cross sections using various nuclear potential  

SciTech Connect (OSTI)

The relevant astrophysical reaction rates which are derived from the reaction cross sections are necessary input to the reaction network. In this work, we analyse several theoretical models of the nuclear potential which give better prediction of the cross sections for some selected reactions.

Aziz, Azni Abdul [Department of Physics, University of Malaya, 50603 Kuala Lumpur (Malaysia); Kulliyah of Science, International Islamic University Malaysia, 25200 Kuantan (Malaysia); Quantum Science Center, Faculty of Science, University of Malaya, 50603 Kuala Lump (Malaysia); Kassim, Hasan Abu [Department of Physics, University of Malaya, 50603 Kuala Lumpur (Malaysia); Quantum Science Center, Faculty of Science, University of Malaya, 50603 Kuala Lumpur (Malaysia); Institute of Space Science, Universiti Kebangsaan Malaysia, 43600 Bangi, Se (Malaysia); Yusof, Norhasliza [Department of Physics, University of Malaya, 50603 Kuala Lumpur (Malaysia); Quantum Science Center, Faculty of Science, University of Malaya, 50603 Kuala Lumpur (Malaysia); Muhammad Zamrun, F. [Quantum Science Center, Faculty of Science, University of Malaya, 50603 Kuala Lumpur (Malaysia); Jurusan Fisika FMIPA, Universitas Haluoleo Kendari, Sulawesi Tenggara, J3232 (Indonesia)

2014-05-02T23:59:59.000Z

200

Neutron capture cross sections: from theory to experiments and back  

E-Print Network [OSTI]

The method for an experimental determination of the stellar enhancement factor for the cross section of the $^{151}$Sm$(n,\\gamma)$ reaction process is proposed. This study offered the pretext for an excursus on the interconnections between capture and dissociation reactions and the interplay between theory and experiments in the determination of neutron capture cross sections.

Alberto Mengoni

2005-01-31T23:59:59.000Z

Note: This page contains sample records for the topic "thunderstorm system crossed" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Policy Uncertainty and Cross-Border Flows of BRANDON JULIO  

E-Print Network [OSTI]

Policy Uncertainty and Cross-Border Flows of Capital BRANDON JULIO London Business School YOUNGSUK YOOK Sungkyunkwan University September 2011 ABSTRACT We find that policy uncertainty is an important determinant of fluctuations in cross- border flows of capital. Spefically, we find that fluctuations in policy

University of Technology, Sydney

202

SIC (MUltiple SIgnal Classification) CSP (Cross-power Spectrum Phase)  

E-Print Network [OSTI]

2ch CSP ( ) 1 MU- SIC (MUltiple SIgnal Classification) CSP (Cross- power Spectrum Phase) [1, 2, 3, 4] [5, 6] [7, 8, 9, 10] [7] CSP CSP [8] [9] CSP [10] Estimation of talker's head orientation based (Kobe univ.) [11] 2ch CSP CSP CSP CSP 2 CSP GCC-PHAT (Generalized Cross- Correlation PHAse Transform

Takiguchi, Tetsuya

203

Shell Crossing Singularities in Quasi-Spherical Szekeres Models  

E-Print Network [OSTI]

We investigate the occurrence of shell crossing singularities in quasi-spherical Szekeres dust models with or without a cosmological constant. We study the conditions for shell crossing singularity both from physical and geometrical point of view and they are in agreement.

Subenoy Chakraborty; Ujjal Debnath

2007-12-16T23:59:59.000Z

204

Cross-Language High Similarity Search Using a Conceptual Thesaurus  

E-Print Network [OSTI]

Cross-Language High Similarity Search Using a Conceptual Thesaurus Parth Gupta, Alberto Barr Universitat Polit`ecnica de Val`encia, Spain {pgupta,lbarron,prosso}@dsic.upv.es http://www.dsic.upv.es/grupos/nle Abstract. This work addresses the issue of cross-language high similarity and near-duplicates search, where

Rosso, Paolo

205

Electromagnetic-gravitational cross-sections in external electromagnetic fields  

E-Print Network [OSTI]

The classical processes: the conversion of photons into gravitons in the static electromagnetic fields are considered by using Feynman perturbation techniques. The differential cross sections are presented for the conversion in the electric field of the flat condesor and the magnetic field of the selenoid. A numerical evaluation shows that the cross sections may have the observable value in the present technical scenario.

Long, H N; Tran, T A; Tuan, T A; Long, Hoang Ngoc; Van Soa, Dang; Tran, Tuan A; Tuan, Tran Anh

1994-01-01T23:59:59.000Z

206

Electromgnetic-gravitational cross-sections in external elctromagnetic fields  

E-Print Network [OSTI]

The classical processes: the conversion of photons into gravitons in the static electromagnetic fields are considered by using Feynman perturbation techniques. The differential cross sections are presented for the conversion in the electric field of the flat condesor and the magnetic field of the selenoid. A numerical evaluation shows that the cross sections may have the observable value in the present technical scenario.

Hoang Ngoc Long; Dang Van Soa; Tuan A. Tran

1994-10-03T23:59:59.000Z

207

absorption cross section: Topics by E-print Network  

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

absorption cross section First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 ? absorption cross sections...

208

Analytical approximations for x-ray cross sections III  

SciTech Connect (OSTI)

This report updates our previous work that provided analytical approximations to cross sections for both photoelectric absorption of photons by atoms and incoherent scattering of photons by atoms. This representation is convenient for use in programmable calculators and in computer programs to evaluate these cross sections numerically. The results apply to atoms of atomic numbers between 1 and 100 and for photon energiesgreater than or equal to10 eV. The photoelectric cross sections are again approximated by four-term polynomials in reciprocal powers of the photon energy. There are now more fitting intervals, however, than were used previously. The incoherent-scattering cross sections are based on the Klein-Nishina relation, but use simpler approximate equations for efficient computer evaluation. We describe the averaging scheme for applying these atomic results to any composite material. The fitting coefficients are included in tables, and the cross sections are shown graphically. 100 graphs, 1 tab.

Biggs, F; Lighthill, R

1988-08-01T23:59:59.000Z

209

Theoretical estimates of cross sections for neutron-nucleus collisions  

E-Print Network [OSTI]

We construct an analytical model derived from nuclear reaction theory and having a simple functional form to demonstrate the quantitative agreement with the measured cross sections for neutron induced reactions. The neutron-nucleus total, reaction and scattering cross sections, for energies ranging from 5 to 700 MeV and for several nuclei spanning a wide mass range are estimated. Systematics of neutron scattering cross sections on various materials for neutron energies upto several hundred MeV are important for ADSS applications. The reaction cross sections of neutrons are useful for determining the neutron induced fission yields in actinides and pre-actinides. The present model based on nuclear reaction theory provides good estimates of the total cross section for neutron induced reaction.

Tapan Mukhopadhyay; Joydev Lahiri; D. N. Basu

2011-03-14T23:59:59.000Z

210

Science Highlight June 2012 Catalyst Design: X-rays Cross-examine the Fuel Cell Volcano Plot  

E-Print Network [OSTI]

Science Highlight ­ June 2012 Catalyst Design: X-rays Cross-examine the Fuel Cell Volcano Plot, while fuel cells draw hydrogen or methanol from a tank and oxygen from air. While the overall chemical and examined the "tuning" of a bimetallic fuel cell catalyst using well-defined model systems, consisting

Wechsler, Risa H.

211

Cross-entropy Analysis of the Information in Forensic Speaker Recognition Daniel Ramos and Joaquin Gonzalez-Rodriguez  

E-Print Network [OSTI]

Cross-entropy Analysis of the Information in Forensic Speaker Recognition Daniel Ramos and Joaquin analyze the average information supplied by a forensic speaker recognition system in an information of information, ac- cording to the needs of transparency and testability in forensic science. This analysis

Autonoma de Madrid, Universidad

212

An Overview of the Methodologies for Cross  

E-Print Network [OSTI]

Nuclear Data & Criticality Safety Reactor and Nuclear Systems Division Rensselaer Polytechnic Institute Nuclear Data Symposium for Criticality Safety and Reactor Applications April 27, 2011 #12;2 Managed by UT-Battelle for the U.S. Department of Energy Nuclear Data Analysis and Evaluation · Why is needed? It provides

Danon, Yaron

213

Minimalist design of water-soluble cross-[beta] architecture  

SciTech Connect (OSTI)

Demonstrated successes of protein design and engineering suggest significant potential to produce diverse protein architectures and assemblies beyond those found in nature. Here, we describe a new class of synthetic protein architecture through the successful design and atomic structures of water-soluble cross-{beta} proteins. The cross-{beta} motif is formed from the lamination of successive {beta}-sheet layers, and it is abundantly observed in the core of insoluble amyloid fibrils associated with protein-misfolding diseases. Despite its prominence, cross-{beta} has been designed only in the context of insoluble aggregates of peptides or proteins. Cross-{beta}'s recalcitrance to protein engineering and conspicuous absence among the known atomic structures of natural proteins thus makes it a challenging target for design in a water-soluble form. Through comparative analysis of the cross-{beta} structures of fibril-forming peptides, we identified rows of hydrophobic residues ('ladders') running across {beta}-strands of each {beta}-sheet layer as a minimal component of the cross-{beta} motif. Grafting a single ladder of hydrophobic residues designed from the Alzheimer's amyloid-{beta} peptide onto a large {beta}-sheet protein formed a dimeric protein with a cross-{beta} architecture that remained water-soluble, as revealed by solution analysis and x-ray crystal structures. These results demonstrate that the cross-{beta} motif is a stable architecture in water-soluble polypeptides and can be readily designed. Our results provide a new route for accessing the cross-{beta} structure and expanding the scope of protein design.

Biancalana, Matthew; Makabe, Koki; Koide, Shohei (UC)

2010-08-13T23:59:59.000Z

214

Recent validation experience with multigroup cross-section libraries and scale  

SciTech Connect (OSTI)

This paper will discuss the results obtained and lessons learned from an extensive validation of new ENDF/B-V and ENDF/B-VI multigroup cross-section libraries using analyses of critical experiments. The KENO V. a Monte Carlo code in version 4.3 of the SCALE computer code system was used to perform the critical benchmark calculations via the automated SCALE sequence CSAS25. The cross-section data were processed by the SCALE automated problem-dependent resonance-processing procedure included in this sequence. Prior to calling KENO V.a, CSAS25 accesses BONAMI to perform resonance self-shielding for nuclides with Bondarenko factors and NITAWL-II to process nuclides with resonance parameter data via the Nordheim Integral Treatment.

Bowman, S.M.; Wright, R.Q.; DeHart, M.D.; Parks, C.V.; Petrie, L.M.

1995-12-01T23:59:59.000Z

215

Detection of pulse modulated signals by means of the level-crossing rate  

E-Print Network [OSTI]

/N ? 6 dB. 91 92 93 xi ~Fi ure ~Pa e 4-19 5-1 Variance of N(1;. 01) for Sine Wave Plus Noise; f =f =f = 10 kHz; a 1. 0 1 h o Hypothetical Probability Density Function 95 98 5-2 Binary Communications System 100 5-3 Normalized Crossing Rate... , is that frequency at which 20 1. 20 1. 15 E(C) 1. 10 1. 05 1. 00 1 . 2 . 3 . 4 6/f 5 0 Figure 2-2a Zero-Crossing Rate of Random Noise; 6=f -f =f -f o 1 h o' 1 ' 20 1. 10. 1 ~ 00 . 90 ~ 80 . 70 E &C) f 0 . 60 50 ~ 40 ~ 30 ~ 20 10 0 1 ~ 0 2...

Boatright, Paul Ashton

1972-01-01T23:59:59.000Z

216

Measurement of the t tbar cross section at the Run II Tevatron using Support Vector Machines  

SciTech Connect (OSTI)

This dissertation measures the t{bar t} production cross section at the Run II CDF detector using data from early 2001 through March 2007. The Tevatron at Fermilab is a p{bar p} collider with center of mass energy {radical}s = 1.96 TeV. This data composes a sample with a time-integrated luminosity measured at 2.2 {+-} 0.1 fb{sup -1}. A system of learning machines is developed to recognize t{bar t} events in the 'lepton plus jets' decay channel. Support Vector Machines are described, and their ability to cope with a multi-class discrimination problem is provided. The t{bar t} production cross section is then measured in this framework, and found to be {sigma}{sub t{bar t}} = 7.14 {+-} 0.25 (stat){sub -0.86}{sup +0.61}(sys) pb.

Whitehouse, Benjamin Eric; /Tufts U.

2010-08-01T23:59:59.000Z

217

Absorption cross section in the topologically massive gravity at the critical point  

E-Print Network [OSTI]

The absorption cross section for the the warped AdS$_3$ black hole background shows that it is larger than the area even if the s-wave limit is considered. It raises some question whether the deviation from the areal cross section is due to the warped configuration of the geometry or the rotating coordinate system, where these two effects are mixed up in the warped AdS$_3$ black hole. So, we study the low-frequency scattering dynamics of propagating scalar fields under the warped AdS$_3$ background at the critical point which reduces to the BTZ black hole in the rotating frame without the warped factor, which shows that the deformation effect at the critical point does not appear.

John J. Oh; Wontae Kim

2009-04-01T23:59:59.000Z

218

Admixture enhanced controlled low-strength material for direct underwater injection with minimal cross-contamination  

SciTech Connect (OSTI)

Commercially available admixtures have been developed for placing traditional concrete products under water. This paper evaluates adapting anti-washout admixture (AWA) and high range water reducing admixture (HRWRA) products to enhance controlled low-strength materials (CLSMs) for underwater placement. A simple experimental scale model (based on dynamic and geometric similitude) of typical grout pump emplacement equipment has been developed to determine the percentage of cementing material washed out. The objective of this study was to identify proportions of admixtures and underwater CLSM emplacement procedures which would minimize the cross-contamination of the displaced water while maintaining the advantages of CLSM. Since the displaced water from radioactively contaminated systems must be subsequently treated prior to release to the environment, the amount of cross-contamination is important for cases in which cementing material could form hard sludges in a water treatment facility and contaminate the in-place CLSM stabilization medium.

Hepworth, H.K.; Davidson, J.S.; Hooyman, J.L.

1997-03-01T23:59:59.000Z

219

Actinide Neutron-Induced Fission Cross Section Measurements At LANSCE  

SciTech Connect (OSTI)

Fission cross sections of a range of actinides have been measured at the Los Alamos Neutron Science Center (LANSCE) in support of nuclear energy applications in a wide energy range from sub thermal energies up to 200 MeV. Parallel-plate ionization chambers are used to measure fission cross sections ratios relative to the {sup 235}U standard while incident neutron energies are determined using the time-of-flight method. Recent measurements include the {sup 233,238}U, {sup 239-242}Pu and {sup 243}Am neutron-induced fission cross sections. Obtained data are presented in comparison with existing evaluations and previous data.

Tovesson, F.; Laptev, A. B. [Los Alamos National Laboratory, Los Alamos NM 87545 (United States); Hill, T. S. [Idaho National Laboratory, Idaho Falls ID 83415 (United States)

2011-06-01T23:59:59.000Z

220

Digital sonar system  

DOE Patents [OSTI]

A transponder of an active digital sonar system identifies a multifrequency underwater activating sonar signal received from a remote sonar transmitter. The transponder includes a transducer that receives acoustic waves, including the activating sonar signal, and generates an analog electrical receipt signal. The analog electrical receipt signal is converted to a digital receipt signal and cross-correlated with a digital transmission signal pattern corresponding to the activating sonar signal. A relative peak in the cross-correlation value is indicative of the activating sonar signal having been received by the transponder. In response to identifying the activating sonar signal, the transponder transmits a responding multifrequency sonar signal. 4 figs.

Young, K.K.; Wilkes, R.J.

1995-11-21T23:59:59.000Z

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


221

Blue Cross Blue Shield of Massachusetts is an Independent Licensee of the Blue Cross and Blue Shield Association Expanded Coverage for Preventive Care Under  

E-Print Network [OSTI]

Blue Cross Blue Shield of Massachusetts is an Independent Licensee of the Blue Cross and Blue. Effect the New Rules Will Have on Members and Accounts Blue Cross Blue Shield of Massachusetts. Blue Cross Blue Shield of Massachusetts will offer the following services with no member cost share

Aalberts, Daniel P.

222

Anthem Blue Cross/Anthem Blue Cross Life and Health Insurance Company (P-NP) 5/18/2012 Page 1 University of California  

E-Print Network [OSTI]

Anthem Blue Cross/Anthem Blue Cross Life and Health Insurance Company (P-NP) 5/18/2012 Page 1 services in detail. Getting a Prescription Filled at an Anthem Blue Cross Participating Pharmacy To get the relation between drug type and your copay amount at Anthem Blue Cross participating pharmacies: FDA

Barrett, Jeffrey A.

223

How to determine experimentally the K+ nucleus potential and the K+ N rescattering cross section in a hadronic environment?  

E-Print Network [OSTI]

Comparing K+ spectra at low transverse momenta for different symmetric collision systems at beam energies around 1 AGeV allows for a direct determination of both the strength of the K+ nucleus potential as well as of the K+N rescattering cross section in a hadronic environment. Other little known or unknown quantities which enter the K+ dynamics, like the production cross sections of K+ mesons or the hadronic equation of state, do not spoil this signal as they cancel by using ratios of spectra. This procedure is based on transport model calculations using the Isospin Quantum Molecular Dynamics (IQMD) model which describes the available data quantitatively.

C. Hartnack; A. Sood; H. Oeschler; J. Aichelin

2010-12-16T23:59:59.000Z

224

averaged cross sections: Topics by E-print Network  

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

14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Relations between fusion cross sections and average angular momenta Nuclear Theory (arXiv) Summary: We study...

225

averaged cross section: Topics by E-print Network  

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

14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Relations between fusion cross sections and average angular momenta Nuclear Theory (arXiv) Summary: We study...

226

Cross section dependence of event rates at neutrino telescopes  

E-Print Network [OSTI]

We examine the dependence of event rates at neutrino telescopes on the neutrino-nucleon cross section for neutrinos with energy above 1 PeV, and contrast the results with those for cosmic ray experiments. Scaling of the ...

Marfatia, Danny; Seckel, D.; McKay, D. W.; Hussain, S.

2006-10-20T23:59:59.000Z

227

Photovoltaic Supply Chain and Cross-Cutting Technologies Round 1  

Broader source: Energy.gov [DOE]

On June 11, 2009, DOE announced the first round of Photovoltaic (PV) Supply Chain and Cross-Cutting Technologies awardees. The funded projects target manufacturing and product cost reduction with...

228

U-144:Juniper Secure Access Input Validation Flaw Permits Cross...  

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

The vendor has issued a fix (7.0R9, 7.1R). Addthis Related Articles V-193: Barracuda SSL VPN Input Validation Hole Permits Cross-Site Scripting Attacks T-701: Citrix Access...

229

Top quark pair cross section prospects in ATLAS  

E-Print Network [OSTI]

The observation of the top quark will be an important milestone in ATLAS. This talk reviews methods that ATLAS plans to use to observe the top quark pair production process and measure its cross section.

Andrei Gaponenko; for the ATLAS Collaboration

2009-10-20T23:59:59.000Z

230

Measurement of Heavy Quark cross-sections at CDF  

E-Print Network [OSTI]

The measurement of heavy quark cross-sections provides important tests of the QCD theory. This paper reviews recent measurements of single b-quark and correlated b-quark cross-sections at CDF. Two new measurements of the single b-quark production at CDF agree with the first result from CDF Run II. This clarifies the experimental situation and confirms the recent agreement of theoretical prediction with data. A new measurement of the correlated $b\\bar{b}$ cross-section with dimuon events at CDF is presented. It agrees with theory and it does not confirm the anomalously large $b\\bar{b}$ cross-section seen in Run I by CDF and D${\

A. Annovi

2007-09-28T23:59:59.000Z

231

Electrical Engineering and Computer Cross-Layer Design  

E-Print Network [OSTI]

Electrical Engineering and Computer Science Cross-Layer Design and Analysis of Wireless Networks Wayne Stark Achilleas Anastasopoulos, Shihyu Chang, Hua Wang University of Michigan #12;Electrical Layer Design #12;Electrical Engineering and Computer Science Layered Approach Presentation Layer Session

232

Spectroscopic signatures of doorway-mediated intersystem crossing  

E-Print Network [OSTI]

Intersystem crossing in acetylene, C?H?, is described by a doorway-mediated model, where singlet-triplet mixing between the first excited singlet~ state, S?, and the manifold of low-lying T?,? states is controlled by special ...

Bittinger, Kyle Lee

2009-01-01T23:59:59.000Z

233

A cross country analysis of electricity market reforms  

E-Print Network [OSTI]

econometric model based on Poisson regression with cross-section data covering 51 US states, 13 Canada states and 51 other countries. The results show that both the background of the chairperson of electricity market regulatory agency when reforms started...

Erdogdu, Erkan

2012-06-19T23:59:59.000Z

234

absorptive cross sections: Topics by E-print Network  

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

true metric. Sumit R. Das; Gary Gibbons; Samir D. Mathur 1996-09-06 16 Absorption Cross Section of Scalar Field in Supergravity Background HEP - Theory (arXiv) Summary: It has...

235

V-193: Barracuda SSL VPN Input Validation Hole Permits Cross...  

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

2.3.3.216 Addthis Related Articles U-252: Barracuda Web Filter Input Validation Flaws Permit Cross-Site Scripting Attacks U-144:Juniper Secure Access Input Validation Flaw Permits...

236

activation cross sections: Topics by E-print Network  

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

S. Takcs; F. Ditri; J. Csikai; A. Hermanne; A. V. Ignatyuk 2013-10-24 19 Isolated Prompt Photon Cross Sections HEP - Phenomenology (arXiv) Summary: We show that the...

237

activation cross section: Topics by E-print Network  

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

S. Takcs; F. Ditri; J. Csikai; A. Hermanne; A. V. Ignatyuk 2013-10-24 19 Isolated Prompt Photon Cross Sections HEP - Phenomenology (arXiv) Summary: We show that the...

238

Optimized Cross-Slot Flow Geometry for Microfluidic Extensional Rheometry  

E-Print Network [OSTI]

A precision-machined cross-slot flow geometry with a shape that has been optimized by numerical simulation of the fluid kinematics is fabricated and used to measure the extensional viscosity of a dilute polymer solution. ...

Haward, Simon J.

239

Holy Cross Energy- WE CARE Renewable Energy Generation Rebate Program  

Broader source: Energy.gov [DOE]

Holy Cross Energy's WE CARE (With Efficiency, Conservation And Renewable Energy) Program offers a $1.50-per-watt DC incentive for renewable energy generation using wind, hydroelectric, photovoltaic...

240

Energy dependence of the total photoproduction cross section at HERA  

E-Print Network [OSTI]

The energy dependence of the total photon-proton cross-section is determined from data collected with the ZEUS detector at HERA with two different proton beam energies.

Aharon Levy

2008-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "thunderstorm system crossed" 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

Photoproduction models for total cross section and shower development  

E-Print Network [OSTI]

A model for the total photoproduction cross section based on the ansatz that resummation of infrared gluons limits the rise induced by QCD minijets in all the total cross-sections, is used to simulate extended air showers initiated by cosmic rays with the AIRES simulation program. The impact on common shower observables, especially those related with muon production, is analysed and compared with the corresponding results obtained with previous photoproduction models.

Fernando Cornet; Carlos Garcia Canal; Agnes Grau; Giulia Pancheri; Sergio Sciutto

2014-11-19T23:59:59.000Z

242

Inertia tensor and cross product In n-dimensions space  

E-Print Network [OSTI]

We demonstrated using an elementary method that the inertia tensor of a material point and the cross product of two vectors were only possible in a three or seven dimensional space. The representation matrix of the cross product in the seven dimensional space and its properties were given. The relationship between the inertia tensor and the octonions algebra was emphasized for the first time in this work.

Mehdi Hage Hassan

2006-04-21T23:59:59.000Z

243

Sulfolane-Cross-Polybenzimidazole Membrane For Gas Separation  

DOE Patents [OSTI]

A cross-linked, supported polybenzimidazole membrane for gas separation is prepared by reacting polybenzimidazole (PBI) with the sulfone-containing crosslinking agent 3,4-dichloro-tetrahydro-thiophene-1,1-dioxide. The cross-linked reaction product exhibits enhanced gas permeability to hydrogen, carbon dioxide, nitrogen, and methane as compared to the unmodified analog, without significant loss of selectivity, at temperatures from about 20 degrees Celsius to about 400 degrees Celsius.

Young, Jennifer S. (Los Alamos, NM); Long, Gregory S. (Los Alamos, NM); Espinoza, Brent F. (Los Alamos, NM)

2006-02-14T23:59:59.000Z

244

Equivalent radii of antennas with noncircular cross section  

E-Print Network [OSTI]

of MASTER OF SCIENCE August 1960 Ma]or Sub)ect: Electrical Engineering EQUIVALENT RADII OF ANTENNAS WITH NONCIRCULAR CROSS SECTION A Thesis By CHARLES WEN-HSUN SU Approved as to style and content by: (C airman of Conunittee) (Head of Department...EQUIVALENT RADII OF ANTENNAS WITH NONCIRCULAR CROSS SECTION A Thesis By CHARLES WEN-HSUN SU Submitted to the Graduate School of the Agricultural and Mechanical College of Texas in partial fulfillment of the requirements for the degree...

Su, Charles Wen-Hsun

1960-01-01T23:59:59.000Z

245

A Comparison of Cross-Sector Cyber Security Standards  

SciTech Connect (OSTI)

This report presents a review and comparison (commonality and differences) of three cross-sector cyber security standards and an internationally recognized information technology standard. The comparison identifies the security areas covered by each standard and reveals where the standards differ in emphasis. By identifying differences in the standards, the user can evaluate which standard best meets their needs. For this report, only cross-sector standards were reviewed.

Robert P. Evans

2005-09-01T23:59:59.000Z

246

Band crossing in a shears band of {sup 108}Cd  

SciTech Connect (OSTI)

The level lifetimes have been measured for a shears band of {sup 108}Cd that exhibits band crossing. The observed level energies and B(M1) rates have been successfully described by a semiclassical geometric model based on shear mechanism. In this geometric model, the band crossing in the shears band has been described as the reopening of the angle between the blades of a shear.

Roy, Santosh; Datta, Pradip; Pal, S.; Chattopadhyay, S.; Bhattacharya, S.; Goswami, A.; Jain, H. C.; Joshi, P. K.; Bhowmik, R. K.; Kumar, R.; Muralithar, S.; Singh, R. P.; Madhavan, N.; Rao, P. V. Madhusudhana [S. N. Bose National Centre for Basic Sciences. Block JD, Sector III, Saltlake City, Kolkata 700098 (India); iThemba Labs, Post Office Box 722, Somerset West 7129 (South Africa); Saha Institute of Nuclear Physics, 1/AF Bidhannager Kolkata, 700 064 (India); Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005 (India); Inter University Accelerator Center, Aruna Asaf Ali Marg, New Delhi 110 067 (India); Department of Physics, Andra University, Visakhapatnam 530 003 (India)

2010-05-15T23:59:59.000Z

247

Genetic analysis in the Collaborative Cross breeding population  

SciTech Connect (OSTI)

Genetic reference populations in model organisms are critical resources for systems genetic analysis of disease related phenotypes. The breeding history of these inbred panels may influence detectable allelic and phenotypic diversity. The existing panel of common inbred strains reflects historical selection biases, and existing recombinant inbred panels have low allelic diversity. All such populations may be subject to consequences of inbreeding depression. The Collaborative Cross (CC) is a mouse reference population with high allelic diversity that is being constructed using a randomized breeding design that systematically outcrosses eight founder strains, followed by inbreeding to obtain new recombinant inbred strains. Five of the eight founders are common laboratory strains, and three are wild-derived. Since its inception, the partially inbred CC has been characterized for physiological, morphological, and behavioral traits. The construction of this population provided a unique opportunity to observe phenotypic variation as new allelic combinations arose through intercrossing and inbreeding to create new stable genetic combinations. Processes including inbreeding depression and its impact on allelic and phenotypic diversity were assessed. Phenotypic variation in the CC breeding population exceeds that of existing mouse genetic reference populations due to both high founder genetic diversity and novel epistatic combinations. However, some focal evidence of allele purging was detected including a suggestive QTL for litter size in a location of changing allele frequency. Despite these inescapable pressures, high diversity and precision for genetic mapping remain. These results demonstrate the potential of the CC population once completed and highlight implications for development of related populations. Supplementary material consists of Supplementary Table 1 Phenotypic means, variances, ranges and heritabilities for all traits and generations, Supplementary Table 2, all phenotypic values, Supplementary Table 3, multiple QTL mapping.

Philip, Vivek [University of Tennessee, Knoxville (UTK); Sokoloff, Greta [ORNL; Ackert-Bicknell, Cheryl [Jackson Laboratory, The, Bar Harbor, ME; Striz, Martin [University of Kentucky, Lexington; Branstetter, Lisa R [ORNL; Beckmann, Melissa [ORNL; Spence, Jason S [ORNL; Jackson, Barbara L [ORNL; Galloway, Leslie D [ORNL; Barker, Gene [ORNL; Wymore, Ann M [Oak Ridge National Laboratory (ORNL); Hunsicker, Patricia R [ORNL; Durtschi, David W [University of Kentucky, Lexington; Shaw, Ginger S [University of Kentucky, Lexington; Shinpock, Sarah G [ORNL; Manly, Kenneth F [University of Kentucky, Lexington; Miller, Darla R [ORNL; Donahue, Kevin [University at Buffalo, NY; Culiat, Cymbeline T [ORNL; Churchill, Gary A [Jackson Laboratory, The, Bar Harbor, ME; Lariviere, William R [University of Pittsburgh; Palmer, Abraham [University of Chicago; O'Hara, Bruce [University of Kentucky; Voy, Brynn H [ORNL; Chesler, Elissa J [ORNL

2011-01-01T23:59:59.000Z

248

$^{62}$Ni($n,?$) and $^{63}$Ni($n,?$) cross sections measured at n_TOF/CERN  

E-Print Network [OSTI]

The cross section of the $^{62}$Ni($n,\\gamma$) reaction was measured with the time-of-flight technique at the neutron time-of-flight facility n_TOF at CERN. Capture kernels of 42 resonances were analyzed up to 200~keV neutron energy and Maxwellian averaged cross sections (MACS) from $kT=5-100$ keV were calculated. With a total uncertainty of 4.5%, the stellar cross section is in excellent agreement with the the KADoNiS compilation at $kT=30$ keV, while being systematically lower up to a factor of 1.6 at higher stellar temperatures. The cross section of the $^{63}$Ni($n,\\gamma$) reaction was measured for the first time at n_TOF. We determined unresolved cross sections from 10 to 270 keV with a systematic uncertainty of 17%. These results provide fundamental constraints on $s$-process production of heavier species, especially the production of Cu in massive stars, which serve as the dominant source of Cu in the solar system.

C. Lederer; C. Massimi; E. Berthoumieux; N. Colonna; R. Dressler; C. Guerrero; F. Gunsing; F. Käppeler; N. Kivel; M. Pignatari; R. Reifarth; D. Schumann; A. Wallner; S. Altstadt; S. Andriamonje; J. Andrzejewski; L. Audouin; M. Barbagallo; V. Becares; F. Becvar; F. Belloni; B. Berthier; J. Billowes; V. Boccone; D. Bosnar; M. Brugger; M. Calviani; F. Calvino; D. Cano-Ott; C. Carrapico; F. Cerutti; E. Chiaveri; M. Chin; G. Cortes; M. A. Cortes-Giraldo; I. Dillmann; C. Domingo-Pardo; I. Duran; N. Dzysiuk; C. Eleftheriadis; M. Fernandez-Ordonez; A. Ferrari; K. Fraval; S. Ganesan; A. R. Garc?a; G. Giubrone; M. B. Gomez-Hornillos; I. F. Goncalves; E. Gonzalez-Romero; F. Gramegna; E. Griesmayer; P. Gurusamy; S. Harrisopulos; M. Heil; K. Ioannides; D. G. Jenkins; E. Jericha; Y. Kadi; D. Karadimos; G. Korschinek; M. Krticka; J. Kroll; C. Langer; E. Lebbos; H. Leeb; L. S. Leong; R. Losito; M. Lozano; A. Manousos; J. Marganiec; S. Marrone; T. Martinez; P. F. Mastinu; M. Mastromarco; M. Meaze; E. Mendoza; A. Mengoni; P. M. Milazzo; F. Mingrone; M. Mirea; W. Mondalaers; C. Paradela; A. Pavlik; J. Perkowski; R. Plag; A. Plompen; J. Praena; J. M. Quesada; T. Rauscher; A. Riego; F. Roman; C. Rubbia; R. Sarmento; P. Schillebeeckx; S. Schmidt; G. Tagliente; J. L. Tain; D. Tarr?o; L. Tassan-Got; A. Tsinganis; L. Tlustos; S. Valenta; G. Vannini; V. Variale; P. Vaz; A. Ventura; M. J. Vermeulen; R. Versaci; V. Vlachoudis; R. Vlastou; T. Ware; M. Weigand; C. Weiß; T. J. Wright; P. Zugec

2014-03-19T23:59:59.000Z

249

Fusion Cross Section in the {sup 4,6}He+{sup 64}Zn Collisions Around the Coulomb Barrier  

SciTech Connect (OSTI)

New fusion data for the {sup 4}He+{sup 64}Zn system at sub-barrier energies are measured to cover the same energy region of previous measurements for {sup 6}He+{sup 64}Zn. Aim of the experiment was to compare the fusion excitation functions for the two system to investigate on the effects of the {sup 6}He neutron-halo structure on the fusion reaction mechanism at energies around the Coulomb barrier. The fusion cross section was measured by using an activation technique. Comparing the two systems, we observe an enhancement of the fusion cross section in the reaction induced by {sup 6}He, at and below the Coulomb barrier.

Fisichella, M. [Dipartimento di Fisica, Universita di Messina, Messina (Italy); INFN-Laboratori Nazionali del Sud and sezione di Catania, Catania (Italy); Di Pietro, A.; Figuera, P.; Marchetta, C. [INFN-Laboratori Nazionali del Sud and sezione di Catania, Catania (Italy); Lattuada, M.; Musumarra, A.; Pellegriti, M. G.; Scuderi, V.; Strano, E.; Torresi, D. [INFN-Laboratori Nazionali del Sud and sezione di Catania, Catania (Italy); Dipartimento di Fisica ed Astronomia, Universita di Catania, Catania (Italy); Milin, M. [Department of Physics Faculty of Science University of Zagreb, Zagreb (Croatia); Skukan, N.; Zadro, M. [Ruder Boskovic Institute, Zagreb (Croatia)

2011-10-28T23:59:59.000Z

250

E-Print Network 3.0 - atomic displacement cross-sections Sample...  

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

Summary: Background Data evaluation methodology (KIT) Displacement damage and gas production cross- section data... cross-section ddT : recoil energy distribution Ed :...

251

E-Print Network 3.0 - anniversary cross section Sample Search...  

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

sections can also... material, usually a special copper or aluminium alloy (Fig. 7). The coil cross- section is usually between... tubular cross-sections. Fig 24: Modular...

252

E-Print Network 3.0 - australian cohort cross-sectional Sample...  

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

and cross- sectional data on pathogen frequency. The experimental... population, Pac and Frey (1991) present cross-sectional data suggesting that brucellosis frequency is...

253

E-Print Network 3.0 - assignment cross layer Sample Search Results  

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

University of Tennessee Collection: Engineering 2 Cross-Layer Design and Optimization in Wireless Summary: 6 Cross-Layer Design and Optimization in Wireless Networks...

254

The level crossing analysis of German stock market index (DAX) and daily oil price time series  

E-Print Network [OSTI]

The level crossing analysis of DAX and oil price time series are given. We determine the average frequency of positive-slope crossings, $\

Shayeganfar, F; Peinke, J; Tabar, M Reza Rahimi

2010-01-01T23:59:59.000Z

255

Accelerated crossing of fitness valleys through division of labor and cheating in asexual populations  

E-Print Network [OSTI]

conserved enhancers can be accelerated in large populations:Urwin, E. & Wodarz, D. Accelerated crossing of fitnessGENETICS EVOLUTIONARY THEORY Accelerated crossing of fitness

Komarova, Natalia L; Urwin, Erin; Wodarz, Dominik

2012-01-01T23:59:59.000Z

256

E-Print Network 3.0 - alpha reactions cross-sections Sample Search...  

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

+ Ag reaction for di27;erent cross sections, as a function of time. 12... ; 50 P. Danielewicz Another nuclear stopping observable has been the reaction cross section for...

257

2010 Annual Merit Review Results Cross Reference of PIs and Organizati...  

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

2010 Annual Merit Review Results Cross Reference of PIs and Organizations 2010 Annual Merit Review Results Cross Reference of PIs and Organizations Merit review of DOE Vehicle...

258

E-Print Network 3.0 - adiabatic-passage cross polarization Sample...  

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

of 13 C Hahn echo spectra obtained by di- rect detection and cross-polarization... intensity of the cross-polarization spectrum suggests that our ... Source: Reilly, Anne -...

259

E-Print Network 3.0 - anatomic cross sections Sample Search Results  

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

Summary: by replicating a 2-D autoradiographic cross section of a mouse labelled with F18-FDG. A digital photograph... generated by replicating a 2-D autoradiographic cross...

260

Distributed, Cross-Platform, and Regression Testing Architecture for Service-Oriented Architecture  

E-Print Network [OSTI]

As per leading IT experts, today's large enterprises are going through business transformations. They are adopting service-based IT models such as SOA to develop their enterprise information systems and applications. In fact, SOA is an integration of loosely-coupled interoperable components, possibly built using heterogeneous software technologies and hardware platforms. As a result, traditional testing architectures are no more adequate for verifying and validating the quality of SOA systems and whether they are operating to specifications. This paper first discusses the various state-of-the-art methods for testing SOA applications, and then it proposes a novel automated, distributed, cross-platform, and regression testing architecture for SOA systems. The proposed testing architecture consists of several testing units which include test engine, test code generator, test case generator, test executer, and test monitor units. Experiments conducted showed that the proposed testing architecture managed to use p...

Bassil, Youssef

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "thunderstorm system crossed" 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

Generation and control of resonance states in crossed magnetic and electric fields  

E-Print Network [OSTI]

A two-dimensional electron system interacting with an impurity and placed in crossed magnetic and electric fields is under investigation. Since it is assumed that an impurity center interacts as an attractive $\\delta$-like potential a renormalization procedure for the retarded Green's function has to be carried out. For the vanishing electric field we obtain a close analytical expression for the Green's function and we find one bound state localized between Landau levels. It is also shown by numerical investigations that switching on the electric field new long-living resonance states localized in the vicinity of Landau levels can be generated.

Katarzyna Krajewska; Jerzy Z. Kaminski

2002-05-17T23:59:59.000Z

262

E-Print Network 3.0 - agroforestry farming system Sample Search...  

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

multi-storey agroforestry system evolved over several cen- turies on the humid... - Rainwater Harvesting - Smallholder Irrigation Management - Cross-Slope Barriers -...

263

Cross product in N Dimensions - the doublewedge product  

E-Print Network [OSTI]

The cross product frequently occurs in Physics and Engineering, since it has large applications in many contexts, e.g. for calculating angular momenta, torques, rotations, volumes etc. Though this mathematical operator is widely used, it is commonly expressed in a 3-D notation which gives rise to many paradoxes and difficulties. In fact, instead of other vector operators like scalar product, the cross product is defined just in 3-D space, it does not respect reflection rules and invokes the concept of "handedness". In this paper we are going to present an extension of cross product in an arbitrary number N of spatial Dimensions, different from the one adopted in the Exterior Algebra and explicitly designed for an easy calculus of moments.

Carlo Andrea Gonano; Riccardo Enrico Zich

2014-07-21T23:59:59.000Z

264

Multimode optomechanical dynamics in a cavity with avoided crossings  

E-Print Network [OSTI]

Cavity optomechanics offers powerful methods for controlling optical fields and mechanical motion. A number of proposals have predicted that this control can be extended considerably in devices where multiple cavity modes couple to each other via the motion of a single mechanical oscillator. Here we study the dynamical properties of such a multimode optomechanical device, in which the coupling between cavity modes results from mechanically-induced avoided crossings in the cavity's spectrum. Near the avoided crossings we find that the optical spring shows distinct features that arise from the interaction between cavity modes. Precisely at an avoided crossing, we show that the particular form of the optical spring provides a classical analog of a quantum-nondemolition measurement of the intracavity photon number. The mechanical oscillator's Brownian motion, an important source of noise in these measurements, is minimized by operating the device at cryogenic temperature (500 mK).

D. Lee; M. Underwood; D. Mason; A. B. Shkarin; S. W. Hoch; J. G. E. Harris

2014-09-10T23:59:59.000Z

265

pi+- p differential cross sections at low energies  

SciTech Connect (OSTI)

Differential cross sections for pi- p and pi+ p elastic scattering were measured at five energies between 19.9 and 43.3 MeV. The use of the CHAOS magnetic spectrometer at TRIUMF, supplemented by a range telescope for muon background suppression, provided simultaneous coverage of a large part of the full angular range, thus allowing very precise relative cross section measurements. The absolute normalization was determined with a typical accuracy of 5 %. This was verified in a simultaneous measurement of muon proton elastic scattering. The measured cross sections show some deviations from phase shift analysis predictions, in particular at large angles and low energies. From the new data we determine the real part of the isospin forward scattering amplitude.

H. Denz; P. Amaudruz; J.T. Brack; J. Breitschopf; P. Camerini; J.L. Clark; H. Clement; L. Felawka; E. Fragiacomo; E.F. Gibson; N. Grion; G.J. Hofman; B. Jamieson; E.L. Mathie; R. Meier; G. Moloney; D. Ottewell; O. Patarakin; J.D. Patterson; M.M. Pavan; S. Piano; K. Raywood; R.A. Ristinen; R. Rui; M.E. Sevior; G.R. Smith; J. Stahov; R. Tacik; G.J. Wagner; F. von Wrochem; D.M. Yeomans

2005-12-03T23:59:59.000Z

266

Suppressed fusion cross section for neutron halo nuclei  

E-Print Network [OSTI]

Fusion reactions of neutron-halo nuclei are investigated theoretically with a three-body model. The time-dependent wave-packet method is used to solve the three-body Schrodinger equation. The halo neutron behaves as a spectator during the Coulomb dissociation process of the projectile. The fusion cross sections of 11Be-209Bi and 6He-238U are calculated and are compared with measurements. Our calculation indicates that the fusion cross section is slightly hindered by the presence of weakly bound neutrons.

Makoto Ito; Kazuhiro Yabana; Takashi Nakatsukasa; Manabu Ueda

2006-01-20T23:59:59.000Z

267

Sub-barrier Fusion Cross Sections with Energy Density Formalism  

E-Print Network [OSTI]

We discuss the applicability of the energy density formalism (EDF) for heavy-ion fusion reactions at sub-barrier energies. For this purpose, we calculate the fusion excitation function and the fusion barrier distribution for the reactions of $^{16}$O with $^{154,}$$^{144}$Sm,$^{186}$W and $^{208}$Pb with the coupled-channels method. We also discuss the effect of saturation property on the fusion cross section for the reaction between two $^{64}$Ni nuclei, in connection to the so called steep fall-off phenomenon of fusion cross sections at deep sub-barrier energies.

F. Muhammad Zamrun; K. Hagino; N. Takigawa

2006-06-07T23:59:59.000Z

268

Sub-barrier Fusion Cross Sections with Energy Density Formalism  

SciTech Connect (OSTI)

We discuss the applicability of the energy density formalism (EDF) for heavy-ion fusion reactions at sub-barrier energies. For this purpose, we calculate the fusion excitation function and the fusion barrier distribution for the reactions of 16O with 154,144Sm, 186W and 208Pb with the coupled-channels method. We also discuss the effect of saturation property on the fusion cross section for the reaction between two 64Ni nuclei, in connection to the so called steep fall-off phenomenon of fusion cross sections at deep sub-barrier energies.

Zamrun, Muhammad; Hagino, F. K.; Takigawa, N. [Department of Physics, Tohoku University, 980-8578 (Japan)

2006-08-14T23:59:59.000Z

269

Cross section for {sup 246}Cm subbarrier fission  

SciTech Connect (OSTI)

The cross section for {sup 246}Cm fission induced by neutrons of energy in the range 0.1 eV-20 keV was measured by the neutron lead slowing-down spectrometer (LSDS-100) of the Institute for Nuclear Research (INR, Russian Academy of Sciences, Moscow). The parameters of the resonance area and of the fission width were evaluated for several low-lying s-wave neutron resonances. The parameters of the intermediate structure in the cross section for the subbarrier fusion of {sup 246}Cm nuclei were found. The results obtained in this way were compared with available experimental data and with recommended evaluated data.

Alekseev, A. A.; Bergman, A. A.; Berlev, A. I.; Koptelov, E. A. [Russian Academy of Sciences, Institute for Nuclear Research (Russian Federation); Samylin, B. F.; Trufanov, A. M.; Fursov, B. I.; Shorin, V. S., E-mail: shorin@ippe.r [Institute for Physics and Power Engineering (Russian Federation)

2010-10-15T23:59:59.000Z

270

Cross section for the subbarrier fission of {sup 244}Cm  

SciTech Connect (OSTI)

The cross section for {sup 244}Cm fission induced by neutrons of energy in the range between 0.07 eV and 20 keV was measured by using the lead slowing-down spectrometer (LSDS-100) of the Institute for Nuclear Research (Russian Academy of Sciences, Moscow). The parameters of the resonance areas were determined for the lowest eight s-wave neutron resonances, and the respective fission widths were evaluated. Also, the parameters of the intermediate structure in the cross section for the subbarrier fission of {sup 244}Cm nuclei were evaluated. The results were compared with available data and recommendations based on evaluations.

Alekseev, A. A.; Bergman, A. A.; Berlev, A. I.; Koptelov, E. A. [Russian Academy of Sciences, Institute for Nuclear Research (Russian Federation); Samylin, B. F.; Svirin, M. I.; Trufanov, A. M.; Fursov, B. I.; Shorin, V. S., E-mail: shorin@ippe.r [Institute of Physics and Power Engineering (Russian Federation)

2010-09-15T23:59:59.000Z

271

Direct photon cross section with conversions at CDF  

E-Print Network [OSTI]

We present a measurement of the isolated direct photon cross section in p-pbar collisions at sqrt(s) = 1.8 TeV and |eta| gamma gamma and eta -> gamma gamma events we use a new background subtraction technique which takes advantage of the tracking information available in a photon conversion event. We find that the shape of the cross section as a function of pT is poorly described by next-to-leading-order QCD predictions, but agrees with previous CDF measurements.

CDF collaboration

2004-04-20T23:59:59.000Z

272

Experimental Cross Sections for Reactions of Heavy Ions and 208Pb, 209Bi, 238U, and 248Cm Targets  

SciTech Connect (OSTI)

The study of the reactions between heavy ions and {sup 208}Pb, {sup 209}Bi, {sup 238}U, and {sup 248} Cm targets was performed to look at the differences between the cross sections of hot and cold fusion reactions. Experimental cross sections were compared with predictions from statistical computer codes to evaluate the effectiveness of the computer code in predicting production cross sections. Hot fusion reactions were studied with the MG system, catcher foil techniques and the Berkeley Gas-filled Separator (BGS). 3n- and 4n-exit channel production cross sections were obtained for the {sup 238}U({sup 18}O,xn){sup 256-x}Fm, {sup 238}U({sup 22}Ne,xn){sup 260-x}No, and {sup 248}Cm({sup 15}N,xn){sup 263-x}Lr reactions and are similar to previous experimental results. The experimental cross sections were accurately modeled by the predictions of the HIVAP code using the Reisdorf and Schaedel parameters and are consistent with the existing systematics of 4n exit channel reaction products. Cold fusion reactions were examined using the BGS. The {sup 208}Pb({sup 48}Ca,xn){sup 256-x}No, {sup 208}Pb({sup 50}Ti,xn){sup 258-x}Rf, {sup 208}Pb({sup 51}V,xn){sup 259-x}Db, {sup 209}Bi({sup 50}Ti,xn){sup 259-x}Db, and {sup 209}Bi({sup 51}V,xn){sup 260-x}Sg reactions were studied. The experimental production cross sections are in agreement with the results observed in previous experiments. It was necessary to slightly alter the Reisdorf and Schaedel parameters for use in the HIVAP code in order to more accurately model the experimental data. The cold fusion experimental results are in agreement with current 1n- and 2n-exit channel systematics.

Patin, Joshua B.

2002-05-24T23:59:59.000Z

273

Determination of the stellar (n,$\\gamma$) cross section of $^{54}Fe$ with accelerator mass spectrometry  

E-Print Network [OSTI]

Determination of the stellar (n,$\\gamma$) cross section of $^{54}Fe$ with accelerator mass spectrometry

Coquard, L; Dillmann, I; Wallner, A; Knie, K; Kutschera, W

2006-01-01T23:59:59.000Z

274

PRD draft 1 Direct photon cross section with conversions at CDF  

E-Print Network [OSTI]

PRD draft 1 Direct photon cross section with conversions at CDF The CDF collaboration October 8]. The direct photon cross section measurement with conversions therefore serves as a cross check, 2003 Abstract We present a measurement of the isolated direct photon cross section in p#22;p collisions

Fermilab

275

ORIGEN-ARP Cross-Section Libraries for Magnox, Advanced Gas-Cooled, and VVER Reactor Designs  

SciTech Connect (OSTI)

Cross-section libraries for the ORIGEN-ARP system were extended to include four non-U.S. reactor types: the Magnox reactor, the Advanced Gas-Cooled Reactor, the VVER-440, and the VVER-1000. Typical design and operational parameters for these four reactor types were determined by an examination of a variety of published information sources. Burnup simulation models of the reactors were then developed using the SAS2H sequence from the Oak Ridge National Laboratory SCALE code system. In turn, these models were used to prepare the burnup-dependent cross-section libraries suitable for use with ORIGEN-ARP. The reactor designs together with the development of the SAS2H models are described, and a small number of validation results using spent-fuel assay data are reported.

Murphy, BD

2004-03-10T23:59:59.000Z

276

Debris exhaust system  

DOE Patents [OSTI]

A debris removal system removes debris from a work site by flowing fluid away from the work site toward the periphery of a structure. The fluid flow can be kept constant around the periphery so that debris is removed evenly. The structure can have a reduced cross section between the fluid inlet and the work site so that the resulting increased fluid velocity works to prevent debris from escaping. 9 figs.

McBride, D.D.; Bua, D.; Domankevitz, Y.; Nishioka, N.

1998-06-23T23:59:59.000Z

277

Hydrogen atom in crossed electric and magnetic fields: Phase space topology and torus quantization via periodic orbits  

E-Print Network [OSTI]

A hierarchical ordering is demonstrated for the periodic orbits in a strongly coupled multidimensional Hamiltonian system, namely the hydrogen atom in crossed electric and magnetic fields. It mirrors the hierarchy of broken resonant tori and thereby allows one to characterize the periodic orbits by a set of winding numbers. With this knowledge, we construct the action variables as functions of the frequency ratios and carry out a semiclassical torus quantization. The semiclassical energy levels thus obtained agree well with exact quantum calculations.

Stephan Gekle; Jörg Main; Thomas Bartsch; T. Uzer

2006-10-02T23:59:59.000Z

278

The Born Oppenheimer wave function near level crossing  

E-Print Network [OSTI]

The Born Oppenheimer wave function near level crossing J. E. Avron and A. Gordon Department of Physics, Technion, 32000 Haifa, Israel June 19, 2000 Abstract The standard Born Oppenheimer theory does mass ratio. 1 Introduction In 1927, in a landmark paper, Born and Oppenheimer [2] paved the way

279

Fast RNA Structure Alignment for Crossing Input Rolf Backofena  

E-Print Network [OSTI]

is to predict for every input sequence the minimum free-energy non-crossing structure (in O(n3 ) time function. Since the structure of RNA is evolu- tionarily more conserved than its sequence, predicting a folding with minimal free energy [5, 6, 7, 8, 9]. Albeit this so-named thermodynamic approach is a success

Tsur, Dekel

280

MSc Climate Change A cross-disciplinary degree  

E-Print Network [OSTI]

MSc Climate Change A cross-disciplinary degree www.geog.ucl.ac.uk/climate LONDON'S GLOBAL of climatic change and to develop adaptation strategies. The UCL MSc Climate Change provides rigorous scientific and vocational training for the next generation of climate change professionals. Students

Jones, Peter JS

Note: This page contains sample records for the topic "thunderstorm system crossed" 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

Froissart Bound on Inelastic Cross Section Without Unknown Constants  

E-Print Network [OSTI]

Assuming that axiomatic local field theory results hold for hadron scattering, Andr\\'e Martin and S. M. Roy recently obtained absolute bounds on the D-wave below threshold for pion-pion scattering and thereby determined the scale of the logarithm in the Froissart bound on total cross sections in terms of pion mass only. Previously, Martin proved a rigorous upper bound on the inelastic cross-section $\\sigma_{inel}$ which is one-fourth of the corresponding upper bound on $\\sigma_{tot}$, and Wu, Martin,Roy and Singh improved the bound by adding the constraint of a given $\\sigma_{tot}$. Here we use unitarity and analyticity to determine, without any high energy approximation, upper bounds on energy averaged inelastic cross sections in terms of low energy data in the crossed channel. These are Froissart-type bounds without any unknown coefficient or unknown scale factors and can be tested experimentally. Alternatively, their asymptotic forms,together with the Martin-Roy absolute bounds on pion-pion D-waves below t...

Martin, André

2015-01-01T23:59:59.000Z

282

Nuclear Science and Technology, November 2000. NEUTRON CROSS SECTION EVALUATIONS  

E-Print Network [OSTI]

Nuclear Science and Technology, November 2000. 1 NEUTRON CROSS SECTION EVALUATIONS FOR 238 U UP and Power Engineering, 249020 Obninsk, Russia A.Ventura ENEA, Nuclear Data Center and INFN, Bologna Section of the statistical description that includes direct, pre-equilibrium and equilibrium mechanisms of nuclear reactions

283

Protos: A Cross-Organizational Business Modeling Tool (Demonstration)  

E-Print Network [OSTI]

Protos: A Cross-Organizational Business Modeling Tool (Demonstration) Anup K. Kalia, Pankaj R-organizational business modeling use low-level abstractions such as data and control flow. These approaches result in rigid models that over-constrain business ex- ecution. Further, because such approaches ignore

284

Soda Lake Well Lithology Data and Geologic Cross-Sections  

SciTech Connect (OSTI)

Comprehensive catalogue of drill?hole data in spreadsheet, shapefile, and Geosoft database formats. Includes XYZ locations of well heads, year drilled, type of well, operator, total depths, well path data (deviations), lithology logs, and temperature data. Plus, 13 cross?sections in Adobe Illustrator format.

Faulds, James E.

2013-12-31T23:59:59.000Z

285

Phenomenology of SIDIS unpolarized cross sections and azimuthal asymmetries  

E-Print Network [OSTI]

I review the phenomenology of unpolarized cross sections and azimuthal asymmetries in semi-inclusive deeply inelastic scattering (SIDIS). The general theoretical framework is presented and the validity of the Gaussian model is discussed. A brief account of the existing analyses is provided.

Vincenzo Barone

2012-03-28T23:59:59.000Z

286

Mechanical deformations of boron nitride nanotubes in crossed junctions  

SciTech Connect (OSTI)

We present a study of the mechanical deformations of boron nitride nanotubes (BNNTs) in crossed junctions. The structure and deformation of the crossed tubes in the junction are characterized by using atomic force microscopy. Our results show that the total tube heights are reduced by 20%–33% at the crossed junctions formed by double-walled BNNTs with outer diameters in the range of 2.21–4.67?nm. The measured tube height reduction is found to be in a nearly linear relationship with the summation of the outer diameters of the two tubes forming the junction. The contact force between the two tubes in the junction is estimated based on contact mechanics theories and found to be within the range of 4.2–7.6 nN. The Young's modulus of BNNTs and their binding strengths with the substrate are quantified, based on the deformation profile of the upper tube in the junction, and are found to be 1.07?±?0.11 TPa and 0.18–0.29 nJ/m, respectively. Finally, we perform finite element simulations on the mechanical deformations of the crossed BNNT junctions. The numerical simulation results are consistent with both the experimental measurements and the analytical analysis. The results reported in this paper contribute to a better understanding of the structural and mechanical properties of BNNTs and to the pursuit of their applications.

Zhao, Yadong; Chen, Xiaoming; Ke, Changhong, E-mail: cke@binghamton.edu [Department of Mechanical Engineering, State University of New York at Binghamton, Binghamton, New York 13902 (United States); Park, Cheol [NASA Langley Research Center, Hampton, Virginia 23681 (United States); Department of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, Virginia 22904 (United States); Fay, Catharine C. [NASA Langley Research Center, Hampton, Virginia 23681 (United States); Stupkiewicz, Stanislaw [Institute of Fundamental Technological Research, Warsaw (Poland)

2014-04-28T23:59:59.000Z

287

TWO FREEDERICKSZ TRANSITIONS IN CROSSED ELECTRIC AND MAGNETIC FIELDS  

E-Print Network [OSTI]

965 TWO FREEDERICKSZ TRANSITIONS IN CROSSED ELECTRIC AND MAGNETIC FIELDS H. J. DEULING-p-dibu- tylazoxybenzène. Abstract. 2014 A planar nematic slab shows a Freedericksz transition in a perpendicular electric by external electric or magnetic fields. The resulting distortion is governed by a balance of stabilizing

Boyer, Edmond

288

Fermion absorption cross section of a Schwarzschild black hole  

E-Print Network [OSTI]

We study the absorption of massive spin-half particles by a small Schwarzschild black hole by numerically solving the single-particle Dirac equation in Painleve-Gullstrand coordinates. We calculate the absorption cross section for a range of gravitational couplings Mm/m_P^2 and incident particle energies E. At high couplings, where the Schwarzschild radius R_S is much greater than the wavelength lambda, we find that the cross section approaches the classical result for a point particle. At intermediate couplings we find oscillations around the classical limit whose precise form depends on the particle mass. These oscillations give quantum violations of the equivalence principle. At high energies the cross section converges on the geometric-optics value of 27 \\pi R_S^2/4, and at low energies we find agreement with an approximation derived by Unruh. When the hole is much smaller than the particle wavelength we confirm that the minimum possible cross section approaches \\pi R_S^2/2.

Chris Doran; Anthony Lasenby; Sam Dolan; Ian Hinder

2005-03-04T23:59:59.000Z

289

PET radiotracers: crossing the bloodbrain barrier and surviving  

E-Print Network [OSTI]

PET radiotracers: crossing the blood­brain barrier and surviving metabolism Victor W. Pike in the living human brain with positron emission tomography (PET) are increasingly useful in clinical research or undesirable metabolism. These issues are reviewed. Emerging PET radiotracers for measuring efflux transporter

Shen, Jun

290

Cross correlation surveys with the Square Kilometre Array  

E-Print Network [OSTI]

By the time that the first phase of the Square Kilometre Array is deployed it will be able to perform state of the art Large Scale Structure (LSS) as well as Weak Gravitational Lensing (WGL) measurements of the distribution of matter in the Universe. In this chapter we concentrate on the synergies that result from cross-correlating these different SKA data products as well as external correlation with the weak lensing measurements available from CMB missions. We show that the Dark Energy figures of merit obtained individually from WGL/LSS measurements and their independent combination is significantly increased when their full cross-correlations are taken into account. This is due to the increased knowledge of galaxy bias as a function of redshift as well as the extra information from the different cosmological dependences of the cross-correlations. We show that the cross-correlation between a spectroscopic LSS sample and a weak lensing sample with photometric redshifts can calibrate these same photometric re...

Kirk, Donnacha; Abdalla, Filipe B; Bull, Philip; Joachimi, Benjamin

2015-01-01T23:59:59.000Z

291

U-238: HP Service Manager Input Validation Flaw Permits Cross...  

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

9.21, 9.30 ABSTRACT: Cross-site scripting (XSS) vulnerability in HP Service Manager Web Tier 7.11, 9.21, and 9.30, and HP Service Center Web Tier 6.28, allows remote attackers...

292

Cross-Species Pathogen Transmission and Disease Emergence in Primates  

E-Print Network [OSTI]

to their rapidly growing human populations, close proximity to apes, and population centers with high density and Ebola, are zoonotic, having shifted from wildlife populations. Critical questions for predicting disease is greatest. We find that central Africa and Amazonia are hotspots for cross-species transmission events

Pedersen, Amy B.

293

Genome Technology, No.56 October 2005 CROSSING OVER  

E-Print Network [OSTI]

Genome Technology, No.56 October 2005 CROSSING OVER ACADEMIA OR INDUSTRY? WWW.GENOME-TECHNOLOGY importantly, if I try it out and don't like it, can I come back? Genome Technology interviewed a number-scientist types who chase down answers to impossibly huge (and sometimes useless) questions at the expense

Ferrara, Katherine W.

294

Absorption cross-section 139 Accumulation mode, of aerosol 146  

E-Print Network [OSTI]

133, 151 residence times 153 size distributions 144 Air composition 2 molecular weight 4, 6 Albedo 122 dioxide Coagulation (aerosol) 146 Column model 32 Conditional unstability 56 Continuity equation 75261 INDEX A Absorption cross-section 139 Accumulation mode, of aerosol 146 Acetaldehyde (CH3CHO

Jacob, Daniel J.

295

The turbulent structure of the jet in cross-flow  

E-Print Network [OSTI]

downstream. Other applications of the JICF include the area of aerodynamics with Vertical and/or Short TakeOff/Landing (V/STOL) aircrafts and thrust vector control (control of missiles and rockets). Research in this area was related with the cross sectional...

Lanitis, Nicolas

2014-04-08T23:59:59.000Z

296

Climate Change Uncertainty and Skepticism: A Cross-Country Analysis  

E-Print Network [OSTI]

Climate Change Uncertainty and Skepticism: A Cross-Country Analysis Skepticism about climate change for other countries. · Skepticism and uncertainty are related but different aspects of climate change perceptions. In the literature, skepticism often relates to whether people believe climate change is happening

Hall, Sharon J.

297

On Global Structure of Hadronic Total Cross-Sections  

E-Print Network [OSTI]

Simple theoretical formula describing the global structure of pp and p\\bar p total cross-secrions in the whole range of energies available up today has been derived. The fit to the experimental data with the formula has been made. It is shown that there is a very good correspondence of the theoretical formula to the existing experimental data.

A. A. Arkhipov

2001-12-14T23:59:59.000Z

298

RZ calculations for self shielded multigroup cross sections  

SciTech Connect (OSTI)

A collision probability method has been implemented for RZ geometries. The method accounts for white albedo, specular and translation boundary condition on the top and bottom surfaces of the geometry and for a white albedo condition on the outer radial surface. We have applied the RZ CP method to the calculation of multigroup self shielded cross sections for Gadolinia absorbers in BWRs. (authors)

Li, M.; Sanchez, R.; Zmijarevic, I.; Stankovski, Z. [Commissariat a l'Energie Atomique CEA, Direction de l'Energie Nucleaire, DEN/DM2S/SERMA/LENR, 91191 Gif-sur-Yvette Cedex (France)

2006-07-01T23:59:59.000Z

299

Extraction of Neutrino Flux from the Inclusive Muon Cross Section  

E-Print Network [OSTI]

We have studied a method to extract neutrino flux from the data of neutrino-nucleus reaction by using maximum entropy method. We demonstrate a promising example to extract neutrino flux from the inclusive cross section of muon production without selecting a particular reaction process such as quasi-elastic nucleon knockout.

Murata, Tomoya

2015-01-01T23:59:59.000Z

300

Extraction of Neutrino Flux from the Inclusive Muon Cross Section  

E-Print Network [OSTI]

We have studied a method to extract neutrino flux from the data of neutrino-nucleus reaction by using maximum entropy method. We demonstrate a promising example to extract neutrino flux from the inclusive cross section of muon production without selecting a particular reaction process such as quasi-elastic nucleon knockout.

Tomoya Murata; Toru Sato

2015-01-23T23:59:59.000Z

Note: This page contains sample records for the topic "thunderstorm system crossed" 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

Identification of protein-protein interaction and topologies in living cells by chemical cross-linking and mass spectrometry  

SciTech Connect (OSTI)

Current chemical cross-linking methods are commonly employed for mapping sites of interaction and three-dimensional structure in purified, known protein complexes. When applied in vivo in combination of co-immunoprecipitation methods, information on the sites of interaction between proteins are unattainable due to overwhelming sample complexity. We present results from a novel cross-linking strategy that allow simultaneous protein-protein interaction and surface topology measurement in vivo without any prior knowledge of the system. The strategy consists of: (i) cross-linking reaction: intact cell labeling with protein interaction reporters (PIRs); (ii) two-stage mass spectrometric analysis: stage 1 identification of PIR-labeled proteins and construction of a restricted database by 2D-LC/MS/MS; and stage 2 analysis of PIR-labeled peptides by multiplexed LC/FTICR-MS; (iii) data analysis: identification of cross-linked peptides and proteins of origin using accurate mass and other constraints. This strategy was applied to Shewanella oneidensis MR-1 bacterial cells and successfully identified a protein-protein interaction between SecA and a small outer membrane lipoprotein as well as their sites of interaction in vivo.

Zhang, Haizhen; Tang, Xiaoting; Munske, Gerhard R.; Tolic, Nikola; Anderson, Gordon A.; Bruce, James E.

2008-10-20T23:59:59.000Z

302

ENDF/B-VII.1 Neutron Cross Section Data Testing with Critical Assembly Benchmarks and Reactor Experiments  

SciTech Connect (OSTI)

The ENDF/B-VII.1 library is the latest revision to the United States' Evaluated Nuclear Data File (ENDF). The ENDF library is currently in its seventh generation, with ENDF/B-VII.0 being released in 2006. This revision expands upon that library, including the addition of new evaluated files (was 393 neutron files previously, now 418 including replacement of elemental vanadium and zinc evaluations with isotopic evaluations) and extension or updating of many existing neutron data files. Complete details are provided in the companion paper [1]. This paper focuses on how accurately application libraries may be expected to perform in criticality calculations with these data. Continuous energy cross section libraries, suitable for use with the MCNP Monte Carlo transport code, have been generated and applied to a suite of nearly one thousand critical benchmark assemblies defined in the International Criticality Safety Benchmark Evaluation Project's International Handbook of Evaluated Criticality Safety Benchmark Experiments. This suite covers uranium and plutonium fuel systems in a variety of forms such as metallic, oxide or solution, and under a variety of spectral conditions, including unmoderated (i.e., bare), metal reflected and water or other light element reflected. Assembly eigenvalues that were accurately predicted with ENDF/B-VII.0 cross sections such as unmoderated and uranium reflected 235U and 239Pu assemblies, HEU solution systems and LEU oxide lattice systems that mimic commercial PWR configurations continue to be accurately calculated with ENDF/B-VII.1 cross sections, and deficiencies in predicted eigenvalues for assemblies containing selected materials, including titanium, manganese, cadmium and tungsten are greatly reduced. Improvements are also confirmed for selected actinide reaction rates such as 236U capture. Other deficiencies, such as the overprediction of Pu solution system critical eigenvalues and a decreasing trend in calculated eigenvalue for 233U fueled systems as a function of Above-Thermal Fission Fraction remain. The comprehensive nature of this critical benchmark suite and the generally accurate calculated eigenvalues obtained with ENDF/B-VII.1 neutron cross sections support the conclusion that this is the most accurate general purpose ENDF/B cross section library yet released to the technical community.

G. Palmiotti

2011-12-01T23:59:59.000Z

303

Energy Dependence of Energy Partition in Products of Direct Reactions: Crossed?Beam Studies and a New Model  

E-Print Network [OSTI]

and R. E. Merrifield (unpublished). Energy Dependence of Energy Partition in Products of Direct Reactions: Crossed­ Beam Studies and aNew Model P. HIERL, Z. HERMAN,* J. KERSTETTER, AND R. WOLFGANG Department of Chemistry, Yale University, New Haven.... (If position of maximum intensity in c.m. system were plotted, a somewhat higher intercept Qo would result.) modes of the products, and on the dependence of this on initial kinetic energy. Results on the systems Ar++D~ArD++D, and Ar...

Hierl, Peter M.; Herman, Z.; Kerstetter, J.; Wolfgang, R.

1968-01-01T23:59:59.000Z

304

Public key Steganography Using Discrete Cross-Coupled Chaotic Maps  

E-Print Network [OSTI]

By cross-coupling two logistic maps a novel method is proposed for the public key steganography in JPEG image. Chaotic maps entail high complexity in the used algorithm for embedding secret data in a medium. In this paper, discrete cross- coupled chaotic maps are used to specifying the location of the different parts of the secret data in the image. Modifying JPEG format during compressing and decompressing, and also using public key enhanced difficulty of the algorithm. Simulation results show that in addition to excessive capacity, this method has high robustness and resistance against hackers and can be applicable in secret communication. Also the PSNR value is high compared to the other works.

Sodeif Ahadpour; Mahdiyeh Majidpour; Yaser Sadra

2012-11-01T23:59:59.000Z

305

Crossed-ratchet effects and domain wall geometrical pinning  

E-Print Network [OSTI]

The motion of a domain wall in a two dimensional medium is studied taking into account the internal elastic degrees of freedom of the wall and geometrical pinning produced both by holes and sample boundaries. This study is used to analyze the geometrical conditions needed for optimizing crossed ratchet effects in periodic rectangular arrays of asymmetric holes, recently observed experimentally in patterned ferromagnetic films. Geometrical calculations and numerical simulations have been used to obtain the anisotropic critical fields for depinning flat and kinked walls in rectangular arrays of triangles. The aim is to show with a generic elastic model for interfaces how to build a rectifier able to display crossed ratchet effects or effective potential landscapes for controlling the motion of interfaces or invasion fronts.

V. I. Marconi; A. B. Kolton; J. A. Capitan; J. A. Cuesta; A. Perez-Junquera; M. Velez; J. I. Martin; J. M. R. Parrondo

2010-12-25T23:59:59.000Z

306

Experimental validation of lead cross sections for scale and MCNP  

SciTech Connect (OSTI)

Moving spent nuclear fuel between facilities often requires the use of lead-shielded casks. Criticality safety that is based upon calculations requires experimental validation of the fuel matrix and lead cross section libraries. A series of critical experiments using a high-enriched uranium-aluminum fuel element with a variety of reflectors, including lead, has been identified. Twenty-one configurations were evaluated in this study. The fuel element was modelled for KENO V.a and MCNP 4a using various cross section sets. The experiments addressed in this report can be used to validate lead-reflected calculations. Factors influencing calculated k{sub eff} which require further study include diameters of styrofoam inserts and homogenization.

Henrikson, D.J.

1995-12-01T23:59:59.000Z

307

Calculation of the cross section for top quark production  

SciTech Connect (OSTI)

The authors summarize calculations of the cross section for top quark production at hadron colliders within the context of perturbative quantum chromodynamics, including resummation of the effects of initial-state soft gluon radiation to all orders in the strong coupling strength. In their approach they resume the universal leading-logarithm contributions, and they restrict the calculation to the region of phase space that is demonstrably perturbative. They compare the approach with other methods. They present predictions of the physical cross section as a function of the top quark mass in proton-antiproton reactions at center-of-mass energies of 1.8 and 2.0 TeV, and they discuss estimated uncertainties.

Berger, E.L.; Contopanagos, H. [Argonne National Lab., IL (United States). High Energy Physics Div.

1996-06-21T23:59:59.000Z

308

Accurate Development of Thermal Neutron Scattering Cross Section Libraries  

SciTech Connect (OSTI)

The objective of this project is to develop a holistic (fundamental and accurate) approach for generating thermal neutron scattering cross section libraries for a collection of important enutron moderators and reflectors. The primary components of this approach are the physcial accuracy and completeness of the generated data libraries. Consequently, for the first time, thermal neutron scattering cross section data libraries will be generated that are based on accurate theoretical models, that are carefully benchmarked against experimental and computational data, and that contain complete covariance information that can be used in propagating the data uncertainties through the various components of the nuclear design and execution process. To achieve this objective, computational and experimental investigations will be performed on a carefully selected subset of materials that play a key role in all stages of the nuclear fuel cycle.

Hawari, Ayman; Dunn, Michael

2014-06-10T23:59:59.000Z

309

Cross section for fast neutron induced /sup 243/Cm fission  

SciTech Connect (OSTI)

The authors discuss a method for measuring the cross section of the fission of curium 243 which either eliminates or corrects for the interference arising from sister isotopes or from the half-life spontaneous fission of this isotope. Soda-lime glass was used as the detector material and uranium 235 as the calibration standard. The irradiation facility is described. Error estimates are given.

Fomushkin, E.F.; Novoselov, G.F.; Vinogradov, Yu.I.; Vyachin, V.N.; Gavrilov, V.V.; Koshelev, A.S.; Polynov, V.N.; Surin, V.M.; Shvetsov, A.M.

1987-10-01T23:59:59.000Z

310

Overview of recent U235 neutron cross section evaluation work  

SciTech Connect (OSTI)

This report is an overview (through 1997) of the U235 neutron cross section evaluation work at Oak Ridge National Laboratory (ORNL), AEA Technology (Harwell) and Lockheed Martin Corp.-Schenectady (LMS), which has influenced, or appeared in, ENDF/B-VI through Release 5. The discussion is restricted to the thermal and resolved resonance regions, apart from some questions about the unresolved region which still need investigation. The important role which benchmark testing has played will be touched on.

Lubitz, C. [Lockheed Martin Corp., Schenectady, NY (United States)

1998-10-01T23:59:59.000Z

311

Updated Higgs cross section at approximate N$^3$LO  

E-Print Network [OSTI]

We update our estimate of the cross section for Higgs production in gluon fusion at next-to-next-to-next-to-leading order (N$^3$LO) in $\\alpha_s$ in view of the recent full computation of the result in the soft limit for infinite top mass, which determines a previously unknown constant. We briefly discuss the phenomenological implications. Results are available through the updated version of the ggHiggs code.

Marco Bonvini; Richard D. Ball; Stefano Forte; Simone Marzani; Giovanni Ridolfi

2014-07-03T23:59:59.000Z

312

(Extract from) Chapter 4 How To Do Cross-Tabs  

E-Print Network [OSTI]

with the right-hand button "Export": After this you will see the following: #12;Chapter 4 2 Just press "OK.htm in your working directory and open it. You will see the following: #12;Cross-Tabs in Spss 3 Now press. If everything has been done correctly, the size of font and the table can now be adjusted to fit the page

White, Douglas R.

313

Cross-Language Text Classification J. Scott Olsson  

E-Print Network [OSTI]

word cj . That is, Ei,j P(ei|cj ), 1 i Ne, 1 j Nc E = 0 B @ P(e1|c1) · · · P(e1|cCross-Language Text Classification J. Scott Olsson Dept. of Mathematics University of Maryland their Czech counterparts (e.g., to discuss London more than Prague), so that, having only documents in English

Oard, Doug

314

W and Z cross sections at the Tevatron  

SciTech Connect (OSTI)

The CDF and D0 experiments at the Tevatron have used p{bar p} collisions at {radical}s = 1.96 TeV to measure the cross section of W and Z boson production using several leptonic final states. An indirect measurement of the total W width has been extracted, and the lepton charge asymmetry in Drell-Yan production has been studied up to invariant masses of 600 GeV/c{sup 2}.

T. Dorigo

2003-07-01T23:59:59.000Z

315

Top Quark Production Cross Section at the Tevatron  

SciTech Connect (OSTI)

An overview of the preliminary results of the top quark pair production cross section measurements at a center-of-mass energy of 1.96 TeV carried out by the CDF and D0 collaborations is presented. The data samples used for the analyses are collected in the current Tevatron run and correspond to an integrated luminosity from 360 pb{sup -1} up to 760 pb{sup -1}.

Shabalina, E.; /Chicago U.

2006-05-01T23:59:59.000Z

316

Top quark pair production cross section at the Tevatron  

SciTech Connect (OSTI)

Top quark pair production cross section has been measured at the Tevatron by CDF and D0 collaborations using different channels and methods, in order to test standard model predictions, and to search for new physics hints affecting the t{bar t} production mechanism or decay. Measurements are carried out with an integrated luminosity of 1.0 to 2.0 fb{sup -1}, and are found to be consistent with standard model expectations.

Cortiana, Giorgio; /INFN, Padua /Padua U.

2008-04-01T23:59:59.000Z

317

Coupling Extraction From Off-Shell Cross-sections  

E-Print Network [OSTI]

In this note, we present a novel method of extracting the couplings of a new heavy particle to the Standard Model states. Contrary to the usual discovery process which involves studying the on-shell production, we look at regions away from resonance to take advantage of the simple scaling of the cross-section with the couplings. We apply the procedure to the case of a heavy quark as an illustration.

Baradhwaj Coleppa; Tanumoy Mandal; Subhadip Mitra

2014-10-09T23:59:59.000Z

318

Microsoft Word - Cross Reference Matrix Introduction.doc  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |EnergyonSupport0.pdf5 OPAM SEMIANNUAL REPORTMAMayCross Reference Matrix Introduction This

319

City of La Crosse, Kansas (Utility Company) | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDITOhio (UtilityHolyrood, Kansas (UtilityKingfisher, OklahomaCrosse, Kansas

320

CSRL-V: an ENDF/B-V 227-group cross section library for criticality safety studies  

SciTech Connect (OSTI)

The AMPX system was used to generate a P/sub 3/ 227-neutron-group master cross-section library containing data for all materials in the ENDF/B-V general purpose file. CSRL-V is a data base for the subsequent generation of problem-dependent fine- and/or broad-group cross sections for shipping cask calculations and other criticality safety analyses. The problem-dependent data can be used with codes such as KENO IV, ANISN, XSDRNPM, VENTURE, DOT, MORSE, etc. CSRL-V data can be coupled with photon-production and photon-interaction multigroup data produced with the AMPX system to produce coupled neutron-gamma cross-section libraries. Consideration was given to the resonance structure of prominent nuclei, the thresholds of important reactions, and various fission spectra. Data in the CSRL-V library were checked for first-order consistencies and tested in performance parameter calculations for a series of benchmark critical experiments. The CSRL-V library is available on magnetic tape. 1 table. (RWR)

Ford, W.E. III; Westfall, R.M.; Diggs, B.R.; Webster, C.C.; Knight, J.R.

1980-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "thunderstorm system crossed" 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

Altered Cross-Linking of HSP27 by Zerumbone as a Novel Strategy for Overcoming HSP27-Mediated Radioresistance  

SciTech Connect (OSTI)

Purpose: HSP27 or HSP25 negatively regulates apoptosis pathways after radiation or chemotherapeutic agents. Abrogation of HSP27 function may be a candidate target for overcoming radio- and chemoresistance. Methods and Materials: Zerumbone (ZER), a cytotoxic component isolated from Zingiber zerumbet smith. Clonogenic survival assay and flow cytometry after Annexin V staining were performed to determine in vitro sensitization effects of ZER with ionizing radiation. A nude mouse xenografting system was also applied to detect in vivo radiosensitizing effects of ZER. Results: ZER produced cross-linking of HSP27, which was dependent on inhibition of the monomeric form of HSP27. ZER was directly inserted between the disulfide bond in the HSP27 dimer and modified normal HSP27 dimerization. Pretreatment with ZER before radiation inhibited the binding affinity between HSP27 and apoptotic molecules, such as cytochrome c and PKC{delta}, and induced sensitization in vitro and in an in vivo xenografted nude mouse system. Structural analogs lacking only the carbonyl group in ZER, such as {alpha}-humulene (HUM) and 8-hydroxy-humulen (8-OH-HUM), did not affect normal cross-linking of HSP27 and did not induce radiosensitization. Conclusions: We suggest that altered cross-linking of HSP27 by ZER is a good strategy for abolishing HSP27-mediated resistance.

Choi, Seo-Hyun [Division of Radiation Effects, Korea Institute of Radiological and Medical Science, Seoul (Korea, Republic of); School of Life Sciences and Biotechnology, Korea University, Seoul (Korea, Republic of); Lee, Yoon-Jin [Division of Radiation Effects, Korea Institute of Radiological and Medical Science, Seoul (Korea, Republic of); Seo, Woo Duck [Department of Functional Crop, National Institute of Crop Science, Rural Development Administration, Miryang (Korea, Republic of); Lee, Hae-June [Division of Radiation Effects, Korea Institute of Radiological and Medical Science, Seoul (Korea, Republic of); Nam, Joo-Won; Lee, Yoo Jin [College of Pharmacy and Division of Life Science and Pharmaceuticals, Ewha Womans University, Seoul (Korea, Republic of); Kim, Joon [School of Life Sciences and Biotechnology, Korea University, Seoul (Korea, Republic of); Seo, Eun-Kyoung [College of Pharmacy and Division of Life Science and Pharmaceuticals, Ewha Womans University, Seoul (Korea, Republic of); Lee, Yun-Sil, E-mail: yslee0425@ewha.ac.k [Division of Radiation Effects, Korea Institute of Radiological and Medical Science, Seoul (Korea, Republic of); College of Pharmacy and Division of Life Science and Pharmaceuticals, Ewha Womans University, Seoul (Korea, Republic of)

2011-03-15T23:59:59.000Z

322

Technical Note: Contrast solution density and cross section errors in inhomogeneity-corrected dose calculation for breast balloon brachytherapy  

SciTech Connect (OSTI)

Purpose: Recent recommendations by the American Association of Physicists in Medicine Task Group 186 emphasize the importance of understanding material properties and their effect on inhomogeneity-corrected dose calculation for brachytherapy. Radiographic contrast is normally injected into breast brachytherapy balloons. In this study, the authors independently estimate properties of contrast solution that were expected to be incorrectly specified in a commercial brachytherapy dose calculation algorithm. Methods: The mass density and atomic weight fractions of a clinical formulation of radiographic contrast solution were determined using manufacturers' data. The mass density was verified through measurement and compared with the density obtained by the treatment planning system's CT calibration. The atomic weight fractions were used to determine the photon interaction cross section of the contrast solution for a commercial high-dose-rate (HDR) brachytherapy source and compared with that of muscle. Results: The density of contrast solution was 10% less than that obtained from the CT calibration. The cross section of the contrast solution for the HDR source was 1.2% greater than that of muscle. Both errors could be addressed by overriding the density of the contrast solution in the treatment planning system. Conclusions: The authors estimate the error in mass density and cross section parameters used by a commercial brachytherapy dose calculation algorithm for radiographic contrast used in a clinical breast brachytherapy practice. This approach is adaptable to other clinics seeking to evaluate dose calculation errors and determine appropriate density override values if desired.

Kim, Leonard H.; Zhang Miao; Howell, Roger W.; Yue, Ning J.; Khan, Atif J. [Department of Radiation Oncology, University of Medicine and Dentistry of New Jersey: Robert Wood Johnson Medical School and Cancer Institute of New Jersey, New Brunswick, New Jersey 08903 (United States); Department of Radiology, University of Medicine and Dentistry of New Jersey: New Jersey Medical School, Newark, New Jersey 07103 (United States); Department of Radiation Oncology, University of Medicine and Dentistry of New Jersey: Robert Wood Johnson Medical School and Cancer Institute of New Jersey, New Brunswick, New Jersey 08903 (United States)

2013-01-15T23:59:59.000Z

323

1-D closure models for slender 3-D viscoelastic free jets: von Karman flow geometry and elliptical cross section  

SciTech Connect (OSTI)

In this paper we derive one space dimensional, reduced systems of equations (1-D closure models) for viscoelastic free jets. We begin with the three-dimensional system of conservation laws and a Maxwell-Jeffreys constitutive law for an incompressible viscoelastic fluid. First, we exhibit exact truncations to a finite, closed system of 1-D equations based on classical velocity assumptions of von Karman. Next, we demonstrate that the 3-D free surface boundary conditions overconstrain these truncated systems, so that only a very limited class of solutions exist. We then proceed to derive approximate 1-D closure theories through a slender jet asymptotic scaling, combined with appropriate definitions of velocity, pressure and stress unknowns. Our nonaxisymmetric 1-D slender jet models incorporate the physical effects of inertia, viscoelasticity (viscosity, relaxation and retardation), gravity, surface tension, and properties of the ambient fluid, and include shear stresses and time dependence. Previous special 1-D slender jet models correspond to the lowest order equations in the present asymptotic theory by an a posteriori suppression to leading order of some of these effects, and a reduction to axisymmetry. Solutions of the lowest order system of equations in this asymptotic analysis are presented: For the special cases of elliptical inviscid and Newtonian free jets, subject to the effects of surface tension and gravity, our model predicts oscillation of the major axis of the free surface elliptical cross section between perpendicular directions with distance down the jet, and drawdown of the cross section, in agreement with observed behavior. 15 refs.

Bechtel, S.E.; Forest, M.G.; Holm, D.D.; Lin, K.J.

1988-01-01T23:59:59.000Z

324

An alternative parameterisation for binary-lens caustic-crossing events  

E-Print Network [OSTI]

Microlensing events are being discovered and alerted by the two survey teams OGLE and MOA at an increasing rate. Around ten percent of these events involve binary lenses. Such events potentially contain much information on the physical properties of the observed binary systems, which can then be used for e.g. statistical studies on binary objects in the Galactic disk or bulge. However, such events are usually not straightforward to study, because the model equations are strongly non-linear and there are many local minima that can fool the search for the best solution if the parameter space is not inspected with great care. In this work an alternative parameterisation for the binary lens fitting problem is proposed, in which the parameters involved are defined to represent as closely as possible the caustic-crossing features observed in most binary lens light curves. Furthermore, we work out an extension of the method in order to make use of the straight line fold caustic approximation, when the latter applies for both the caustic entry and exit. We introduce an alternative parameterisation in order to confine the exploration of the parameter space to regions where the models only involve caustic crossing at the dates seen in the light curve. We find that the proposed parameterisation provides more robustness to the light curve fitting process, in particular in avoiding a code to get stuck in false minima.

A. Cassan

2008-10-15T23:59:59.000Z

325

MICROX-2 cross section library based on ENDF/B-VII  

SciTech Connect (OSTI)

New cross section libraries of a neutron transport code MICROX-2 have been generated for advanced reactor design and fuel cycle analyses. A total of 386 nuclides were processed, including 10 thermal scattering nuclides, which are available in ENDF/B-VII release 0 nuclear data. The NJOY system and MICROR code were used to process nuclear data and convert them into MICROX-2 format. The energy group structure of the new library was optimized for both the thermal and fast neutron spectrum reactors based on Contributon and Point-wise Cross Section Driven (CPXSD) method, resulting in a total of 1173 energy groups. A series of lattice cell level benchmark calculations have been performed against both experimental measurements and Monte Carlo calculations for the effective/infinite multiplication factor and reaction rate ratios. The results of MICROX-2 calculation with the new library were consistent with those of 15 reference cases. The average errors of the infinite multiplication factor and reaction rate ratio were 0.31% {delta}k and 1.9%, respectively. The maximum error of reaction rate ratio was 8% for {sup 238}U-to-{sup 235}U fission of ZEBRA lattice against the reference calculation done by MCNP5. (authors)

Hou, J.; Ivanov, K. [Dept. of Mechanical and Nuclear Engineering, Pennsylvania State Univ., Univ. Park, PA 16802-1414 (United States); Choi, H. [General Atomics, 3550 General Atomics Court, San Diego, CA 92121-1122 (United States)

2012-07-01T23:59:59.000Z

326

Charge-state-correlated cross sections for electron loss, capture, and ionization in C{sup 3+}-Ne collisions  

SciTech Connect (OSTI)

Charge-state-correlated total cross sections for projectile-electron loss, capture, and target ionization in C{sup 3+}-Ne collisions have been measured and calculated at absolute energies in the few MeV regime. The calculations are based on a recently proposed coupled mean-field approach which combines a set of nonperturbative single-particle calculations for the initial projectile electrons with another one for the initial target electrons. The basis generator method has been used to solve these equations. Very good overall agreement between experimental and theoretical data is found, which provides further evidence for the applicability of the approach to rather complex many-electron collision systems. One notable exception is the cross section for elastic projectile-electron loss associated with no change of the target charge state. In this case, the theoretical and experimental results differ qualitatively.

Kirchner, T. [Institut fuer Theoretische Physik, TU Clausthal, Leibnizstrasse 10, D-38678 Clausthal-Zellerfeld (Germany); Santos, A.C.F.; Sant'Anna, M.M. [Instituto de Fisica, Universidade Federal do Rio de Janeiro, Cx. Postal 68528, Rio de Janeiro 21941-972 (Brazil); Luna, H.; Sigaud, G.M.; Montenegro, E.C. [Departamento de Fisica, Pontificia Universidade Catolica do Rio de Janeiro, RJ 22452-970 (Brazil); Melo, W.S. [Departamento de Fisica, Universidade Federal de Juiz de Fora, Juiz de Fora 36036-330 (Brazil)

2005-07-15T23:59:59.000Z

327

Charge exchange and ionization cross sections of H{sup +}+H collision in dense quantum plasmas  

SciTech Connect (OSTI)

The plasma screening effects of dense quantum plasmas on H{sup +}+H charge exchange and ionization cross sections are calculated by the classical trajectory Monte Carlo method. For charge exchange cross sections, it is found that the screening effects reduce cross sections slightly in weak screening conditions. However, cross sections are reduced substantially in strong screening conditions. For ionization cross sections, with the increase of screening effects, cross sections for low energies increase more rapidly than those for high energies. When the screening effects are strong enough, it is found that ionization cross sections decrease with the increase of incident H{sup +} energy. In addition, the cross sections have been compared with those in weakly coupled plasmas. It is found that in weak screening conditions, plasma screening effects in the two plasmas are approximately the same, while in strong screening conditions, screening effects of dense quantum plasmas are stronger than those of weakly coupled plasmas.

Zhang, Ling-yu; Qi, Xin; Zhao, Xiao-ying; Meng, Dong-yuan; Xiao, Guo-qing [Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China and University of Chinese Academy of Sciences, Beijing 100049 (China)] [Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China and University of Chinese Academy of Sciences, Beijing 100049 (China); Duan, Wen-shan [Joint Laboratory of Atomic and Molecular Physics of NWNU and IMP CAS, Northwest Normal University, Lanzhou, Gansu 730070 (China)] [Joint Laboratory of Atomic and Molecular Physics of NWNU and IMP CAS, Northwest Normal University, Lanzhou, Gansu 730070 (China); Yang, Lei [Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China and University of Chinese Academy of Sciences, Beijing 100049 (China) [Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China and University of Chinese Academy of Sciences, Beijing 100049 (China); Department of Physics, Lanzhou University, Lanzhou 730000 (China)

2013-11-15T23:59:59.000Z

328

E-Print Network 3.0 - antiproton cross section Sample Search...  

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

Search Sample search results for: antiproton cross section Page: << < 1 2 3 4 5 > >> 1 Physics Letters B 548 (2002) 140145 www.elsevier.comlocatenpe Summary: . 1. (a) Cross...

329

A Comment on \\The Cross-Section of Volatility and Expected Returns": The Statistical Signi  

E-Print Network [OSTI]

on "The Cross-Section of Volatility and Expected Returns":on “The Cross-Section of Volatility and Expected Returns”:the pricing of aggregate volatility risk and idiosyncratic

Anderson, Robert M.; Bianchi, Stephen W.; Goldberg, Lisa R.

2012-01-01T23:59:59.000Z

330

U-212: RSA Authentication Manager Flaws Permit Cross-Site and...  

Energy Savers [EERE]

Attacks U-129: RSA enVision Bugs Permit Cross-Site Scripting, SQL Injection, and Directory Traversal Attacks V-026: RSA Data Protection Manager Bugs Permit Cross-Site...

331

U-129: RSA enVision Bugs Permit Cross-Site Scripting, SQL Injection...  

Energy Savers [EERE]

129: RSA enVision Bugs Permit Cross-Site Scripting, SQL Injection, and Directory Traversal Attacks U-129: RSA enVision Bugs Permit Cross-Site Scripting, SQL Injection, and...

332

E-Print Network 3.0 - advanced generation inter-cross Sample...  

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

generation inter-cross Search Powered by Explorit Topic List Advanced Search Sample search results for: advanced generation inter-cross Page: << < 1 2 3 4 5 > >> 1 OPTICAL...

333

V-229: IBM Lotus iNotes Input Validation Flaws Permit Cross-Site...  

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

9: IBM Lotus iNotes Input Validation Flaws Permit Cross-Site Scripting Attacks V-229: IBM Lotus iNotes Input Validation Flaws Permit Cross-Site Scripting Attacks August 28, 2013 -...

334

V-221: WordPress A Forms Plugin Cross-Site Request Forgery and...  

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

recommends updating to version 1.4.2 Addthis Related Articles U-206: WordPress Flaws Permit Cross-Site Scripting, Cross-Site Request Forgery, and Information Disclosure Attacks...

335

V-168: Splunk Web Input Validation Flaw Permits Cross-Site Scripting...  

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

8: Splunk Web Input Validation Flaw Permits Cross-Site Scripting Attacks V-168: Splunk Web Input Validation Flaw Permits Cross-Site Scripting Attacks May 31, 2013 - 6:00am Addthis...

336

V-124: Splunk Web Input Validation Flaw Permits Cross-Site Scripting...  

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

4: Splunk Web Input Validation Flaw Permits Cross-Site Scripting Attacks V-124: Splunk Web Input Validation Flaw Permits Cross-Site Scripting Attacks April 2, 2013 - 1:13am Addthis...

337

U-020: McAfee Web Gateway Web Access Cross Site Scripting Vulnerabilit...  

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

U-020: McAfee Web Gateway Web Access Cross Site Scripting Vulnerability U-020: McAfee Web Gateway Web Access Cross Site Scripting Vulnerability October 26, 2011 - 9:00am Addthis...

338

E-Print Network 3.0 - ansl-v cross sections Sample Search Results  

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

) Cross Section Area, A, (in.2... ) relationship between cross section area and moment of inertia W27: I 167.8 A - 1674 W24: I 135.7 A - 1167 W... 3000 4000...

339

From ZZ to ZH : How Low Can These Cross Sections Go or Everybody, Let's Cross Section Limbo!  

SciTech Connect (OSTI)

We report on two searches performed at the D0 detector at the Fermi National Laboratory. The first is a search for Z di-boson production with a theoretical cross section of 1.4 pb. The search was performed on 2.6 fb{sup -1} of data and contributed to the first observation of ZZ production at a hadron collider. The second is a search for a low mass Standard Model Higgs in 4.2 fb{sup -1} of data. The Higgs boson is produced in association with a Z boson where the Higgs decays hadronically and the Z decays to two leptons. The ZZ search was performed in both the di-electron and di-muon channels. For the ZH search, we will focus on the muonic decays where we expanded the traditional coverage by considering events in which one of the two muons fails the selection requirement, and is instead reconstructed as an isolated track. We consider Higgs masses between 100 and 150 GeV, with theoretical cross sections ranging from 0.17 to 0.042 pb, and set upper limits on the ZH production cross-section at 95% confidence level.

Strauss, Emanuel Alexandre; /SUNY, Stony Brook

2009-08-01T23:59:59.000Z

340

T-720: Blue Coat Director HTTP Trace Processing Flaw Permits Cross-Site Scripting Attacks  

Broader source: Energy.gov [DOE]

A vulnerability was reported in Blue Coat Director. A remote user can conduct cross-site scripting attacks.

Note: This page contains sample records for the topic "thunderstorm system crossed" 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

Thermal effects and space-charge limited transition in crossed-field devices  

SciTech Connect (OSTI)

A fully kinetic model for the electron flow in a crossed field device is derived and used to determine the system stationary states. It is found that for low injection temperatures, there is a simultaneous presence of distinct stationary solutions and an abrupt transition between accelerating and space-charge limited regimes. On the other hand, for high injection temperatures, there is only a single stationary solution branch and the change between the regimes becomes continuous. For intermediate temperatures, it is then identified a critical point that separates the abrupt and continuous behaviors. It is also investigated how intrinsic space-charge oscillations may drive stationary states unstable in certain parameter regimes. The results are verified with N-particle self-consistent simulations.

Marini, Samuel; Rizzato, Felipe B.; Pakter, Renato [Instituto de Física, Universidade Federal do Rio Grande do Sul, Caixa Postal 15051, 91501-970 Porto Alegre, RS (Brazil)

2014-08-15T23:59:59.000Z

342

Peristaltic Pumping of Blood Through Small Vessels of Varying Cross-section  

E-Print Network [OSTI]

The paper is devoted to a study of the peristaltic motion of blood in the micro-circulatory system. The vessel is considered to be of varying cross-section. The progressive peristaltic waves are taken to be of sinusoidal nature. Blood is considered to be a Herschel-Bulkley fluid. Of particular concern here is to investigate the effects of amplitude ratio, mean pressure gradient, yield stress and the power law index on the velocity distribution, streamline pattern and wall shear stress. On the basis of the derived analytical expression, extensive numerical calculations have been made. The study reveals that velocity of blood and wall shear stress are appreciably affected due to the non-uniform geometry of blood vessels. They are also highly sensitive to the magnitude of the amplitude ratio and the value of the fluid index.

J. C. Misra; S. Maiti

2012-01-30T23:59:59.000Z

343

Distributed Wind Case Study: Cross Island Farms, Wellesley Island, New York (Fact Sheet)  

SciTech Connect (OSTI)

Installing a small wind turbine can sometimes be difficult due to economics, zoning issues, public perception, and other barriers. Persistence and innovation, however, can result in a successful installation. Dani Baker and David Belding own Cross Island Farms, a 102-acre certified organic farm on Wellesley Island in northern New York. In 2009, they took their interest in renewable energy to the next level by researching the logistics of a small wind installation on their land to make their farm even more sustainable. Their renewable energy system consists of one 10-kilowatt Bergey Excel wind turbine, a solar array, and a propane-powered generator. This case study describes funding for the project and the installation process.

Not Available

2012-04-01T23:59:59.000Z

344

Upper limits for the photoproduction cross section for the Phi--(1860) pentaquark state off the deuteron  

SciTech Connect (OSTI)

We searched for the {Phi}{sup --}(1860) pentaquark in the photoproduction process off the deuteron in the {Xi}{sup -} {pi}{sup -} decay channel using CLAS. The invariant mass spectrum of the {Xi}{sup -} {pi}{sup -} system does not indicate any statistically significant enhancement near the reported mass M = 1.860 GeV. The statistical analysis of the sideband-subtracted mass spectrum yields a 90% confidence level upper limit of 0.7 nb for the photoproduction cross section of {Phi}{sup --}(1860) with a consecutive decay into {Xi}{sup -} {pi}{sup -} in the photon energy range 4.5 GeV < E{sub {gamma}} < 5.5 GeV.

Hovanes Egiyan

2012-01-01T23:59:59.000Z

345

Measurements of Differential Z/gamma*+jet+X Cross Sections with the D0 Detector  

SciTech Connect (OSTI)

We present measurements of differential cross sections in inclusive Z/{gamma}* plus jet production in a data sample of 1 fb{sup -1} collected with the D0 detector in proton antiproton collisions at {radical}s = 1.96 TeV. Measured variables include the Z/{gamma}* transverse momentum (p{sub T}{sup Z}) and rapidity (y{sup Z}), the leading jet transverse momentum (p{sub T}{sup jet}) and rapidity (y{sup jet}), as well as various angles of the Z+jet system. We compare the results to different Monte Carlo event generators and next-to-leading order perturbative QCD (NLO pQCD) predictions, with non-perturbative corrections applied.

Lammers, Sabine

2009-11-01T23:59:59.000Z

346

Modification of the Absorption Cross Section in the Optical Near-field  

E-Print Network [OSTI]

The optical interaction of light and matter is modeled as an oscillating dipole in a plane wave. We analyze absorption, scattering and extinction for this system by the energy flow, which is depicted by streamlines of the Poynting vector. Depending on the dissipative damping of the oscillator, the streamlines end up in the dipole. Based on a graphical investigation of the streamlines, this represents the absorption cross section, and forms a far-field absorption aperture. In the near-field of the oscillator, a modification of the aperture is observed. This scheme can be adapted to a single dipolar emitter, interacting with a light field. In the case of the absorption by a single atom, where the oscillator has a circular dipole characteristics, we model the energy flow and derive the apertures.

Moritz Striebel; Jeff F. Young; Jörg Wrachtrup; Ilja Gerhardt

2014-11-20T23:59:59.000Z

347

Phenomenological description of neutron capture cross sections at 30 keV  

E-Print Network [OSTI]

Studying published data of Maxwellian averaged neutron capture cross sections, we found simple phenomenological rules obeyed by the cross sections as a function of proton and neutron number. We use these rules to make predictions for cross sections of neutron capture on nuclei with proton number above 83, where very few data are available.

Miklos Kiss; Zoltan Trocsanyi

2011-04-01T23:59:59.000Z

348

Prediction of Peptide Ion Collision Cross Sections from Topological Molecular Structure and Amino  

E-Print Network [OSTI]

Prediction of Peptide Ion Collision Cross Sections from Topological Molecular Structure and Amino-property relationships (QSPRs) have been developed to predict the ion mobility spec- trometry (IMS) collision cross to accurately predict the collision cross section. The models were built using multiple linear regression (MLR

Clemmer, David E.

349

B S P Course Course Name Cross Listed P 140 Energy and Environment (F, 4 units)  

E-Print Network [OSTI]

B S P Course Course Name Cross Listed P 140 Energy and Environment (F, 4 units) P 149 Special Topics in Energy and Environment (F/SP, 1-4 units) B S P Course Course Name Cross Listed P 140 Intro Atmospheric Chemistry and Physics Laboratory (SP, 3 units) EPS C182 B S P Course Course Name Cross Listed P

Wildermuth, Mary C

350

A technique for classifying and evaluating railroad-highway grade crossings  

E-Print Network [OSTI]

. Track View of Research Annex Boring Site 50 33. Locations for Test Holes at Research Annex Boring Site 52 34. Goodyear Rubber Crossing Installation at FM Highway 1960 and Rock Island Railroad 57 35. Cross Section Through Rubber Panel Crossing 57 36...

Newton, Thomas Monroe

1974-01-01T23:59:59.000Z

351

Crossings and nestings of two edges 01-Fillings of moon polyominoes  

E-Print Network [OSTI]

Crossings and nestings of two edges 01-Fillings of moon polyominoes Two generalizations Wang, Yan & Yeh Symmetry of 2-chains #12;Crossings and nestings of two edges 01-Fillings of moon polyominoes Two generalizations Outline 1 Crossings and nestings of two edges 2 01-Fillings of moon

352

Crossings and nestings of two edges 01-Fillings of moon polyominoes  

E-Print Network [OSTI]

Crossings and nestings of two edges 01-Fillings of moon polyominoes Two generalizations Symmetry of 2-chains #12;Crossings and nestings of two edges 01-Fillings of moon polyominoes Two generalizations Outline 1 Crossings and nestings of two edges 2 01-Fillings of moon polyominoes 3 Two

353

The Continuous Cross-Nested Logit Model: Formulation and Application for Departure Time Choice  

E-Print Network [OSTI]

The Continuous Cross-Nested Logit Model: Formulation and Application for Departure Time Choice modeling, departure time modeling, continuous logit, continuous cross- nested logit, Bayesian estimation usage). In this paper, the continuous cross-nested logit (CCNL) model is introduced. The CCNL model

Kockelman, Kara M.

354

Company Name: Blue Cross Blue Shield of MA Web Site: www.bluecrossma.com  

E-Print Network [OSTI]

Company Name: Blue Cross Blue Shield of MA Web Site: www.bluecrossma.com Industry: Healthcare Brief Company Overview: Headquartered in Boston, Blue Cross Blue Shield of Massachusetts provides comprehensive-level position: Please visit www.bluecrossma.com/careers. With almost 3 million members, Blue Cross Blue Shield

New Hampshire, University of

355

Colorado Supplement to the Summary of Benefits and Coverage Form Anthem Blue Cross and Blue Shield  

E-Print Network [OSTI]

Supplement to the Summary of Benefits and Coverage Form Anthem Blue Cross and Blue Shield CHEIBA Prime PPO Screenings, Prostate Cancer Screenings, and Colorectal Cancer Screenings. Anthem Blue Cross and Blue Shield Colorado, Inc. Independent licensees of the Blue Cross and Blue Shield Association. ®ANTHEM is a registered

356

Colorado Supplement to the Summary of Benefits and Coverage Form Anthem Blue Cross and Blue Shield  

E-Print Network [OSTI]

Supplement to the Summary of Benefits and Coverage Form Anthem Blue Cross and Blue Shield CHEIBA HMO/POS Plan. Anthem Blue Cross and Blue Shield is the trade name of Rocky Mountain Hospital and Medical Service, Inc. HMO products underwritten by HMO Colorado, Inc. Independent licensees of the Blue Cross and Blue

357

Colorado Supplement to the Summary of Benefits and Coverage Form Anthem Blue Cross and Blue Shield  

E-Print Network [OSTI]

Supplement to the Summary of Benefits and Coverage Form Anthem Blue Cross and Blue Shield CHEIBA Custom Plus Screenings, Prostate Cancer Screenings, and Colorectal Cancer Screenings. Anthem Blue Cross and Blue Shield Colorado, Inc. Independent licensees of the Blue Cross and Blue Shield Association. ®ANTHEM is a registered

358

Method and apparatus for affecting a recirculation zone in a cross flow  

DOE Patents [OSTI]

Disclosed is a cross flow apparatus including a surface and at least one outlet located at the surface. The cross flow apparatus further includes at least one guide at the surface configured to direct an intersecting flow flowing across the surface and increase a velocity of a cross flow being expelled from the at least one outlet downstream from the at least one outlet.

Bathina, Mahesh (Andhra Pradesh, IN); Singh, Ramanand (Uttar Pradesh, IN)

2012-07-17T23:59:59.000Z

359

Neutron Thermal Cross Sections, Westcott Factors, Resonance Integrals, Maxwellian Averaged Cross Sections and Astrophysical Reaction Rates Calculated from Major Evaluated Data Libraries  

E-Print Network [OSTI]

We present calculations of neutron thermal cross sections, Westcott factors, resonance integrals, Maxwellianaveraged cross sections and astrophysical reaction rates for 843 ENDF materials using data from the major evaluated nuclear libraries and European activation file. Extensive analysis of newly-evaluated neutron reaction cross sections, neutron covariances, and improvements in data processing techniques motivated us to calculate nuclear industry and neutron physics quantities, produce s-process Maxwellian-averaged cross sections and astrophysical reaction rates, systematically calculate uncertainties, and provide additional insights on currently available neutron-induced reaction data. Nuclear reaction calculations are discussed and new results are presented.

Pritychenko, B

2012-01-01T23:59:59.000Z

360

Hadronic Production of psi(2S) Cross section and Polarization  

SciTech Connect (OSTI)

The hadronic production cross section and the polarization of {psi}(2S) meson are measured by using the data from p{bar p} collisions at {radical}s = 1.96 TeV collected by the Collider Detector at Fermilab. The datasets used correspond to integrated luminosity of 1.1 fb{sup -1} and 800 pb{sup -1}, respectively. The decay {psi}(2S) {yields} {mu}{sup +}{mu}{sup -} is used to reconstruct {psi}(2S) mesons in the rapidity range |y({psi}(2S))| < 0.6. The coverage of the p{sub T} range is 2.0 GeV/c {le} p{sub T} ({psi}(2S)) < 30 GeV/c for the cross section analysis and pT {ge} 5 GeV/c for the polarization analysis. For events with p{sub T} ({psi}(2S)) > 2 GeV/c the integrated inclusive cross section multiplied by the branching ratio for dimuon decay is 3.17 {+-} 0.04 {+-} 0.28 nb . This result agrees with the CDF Run I measurement considering the increased center-of-mass energy from 1.8 TeV to 1.96 TeV. The polarization of the promptly produced {psi}(2S) mesons is found to be increasingly longitudinal as p{sub T} increases from 5 GeV/c to 30 GeV/c. The result is compared to contemporary theory models.

Chung, Kwangzoo; /Carnegie Mellon U.

2008-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "thunderstorm system crossed" 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

Final Report - Nucelar Astrophysics & Neutron Cross Section Measurements  

SciTech Connect (OSTI)

This enduring research program of 28 years has taken advantage of the excellent research facility of ORELA at Oak Ridge National Laboratory. The fruitful collaborations include a number of scientists from ORNL and some from LASL. This program which has ranged from nuclear structure determinations to astrophysical applications has resulted in the identification and/or the refinement of the nuclear properties of more than 5,000 nuclear energy levels or compound energy states. The nuclei range from 30Si to 250Cf, the probes range from thermal to 50 MeV neutrons, and the studies range from capture gamma ray spectra to total and differential scattering and absorption cross sections. Specific target nuclei studied include the following: 120Sn 124Sn 125Sn 113Sn 115Sn 117Sn 119Sn 249Cf 33S 34S 249Bk 186Os 187Os 188Os 30Si 32S 40Ca 48Ca 60Ni 54Fe 86Kr 88Sr 40Ar 122Sn 90Zr 122Sn(n,?) 208Pb 204Pb 52Cr 54Cr 50Cr 53Cr As can be seen, we have studied, on average, more than one isotope per year of grant funding and have focused on exploiting those elements having multiple isotopes in order to investigate systematic trends in nuclear properties, for the purpose of providing more stringent tests of the nuclear spherical optical model with a surface imaginary potential. We have investigated an l-dependence of the real-well depth of the spherical optical model; we have used these measurements to deduce the existence of doorway states in the compound nucleus; and in the total cross section measurements we have, in addition to resonance energies and widths, obtained values for the level density and neutron strength function. Due to the high neutron energy resolution of the ORELA and in some cases the addition of differential scattering cross section data, we have been able to disaggregate the spin states and provide level spacing and strength function for each partial wave in the neutron-nucleus interaction, in some cases up to d5/2. In the following we will summarize the most recent analyses of neutron total cross section measurements, some of which have not been previously reported.

Carlton, Robert F

2009-12-01T23:59:59.000Z

362

Measurement of multi-jet cross sections at ATLAS  

E-Print Network [OSTI]

Inclusive multi-jet production is studied using the ATLAS detector for proton-proton collisions with a center-of-mass energy of 7 TeV. The data sample corresponds to an integrated luminosity of 2.43 pb^-1, using the first proton-proton data collected by the ATLAS detector in 2010. Results on multi-jet cross sections are presented and compared to both leading-order plus parton-shower Monte Carlo predictions and next-to-leading-order QCD calculations.

Matthew Tamsett on behalf of the ATLAS collaboration

2011-09-30T23:59:59.000Z

363

Magic angles and cross-hatching instability in hydrogel fracture  

E-Print Network [OSTI]

The full 2D analysis of roughness profiles of fracture surfaces resulting from quasi-static crack propagation in gelatin gels reveals an original behavior characterized by (i) strong anisotropy with maximum roughness at $V$-independent symmetry-preserving angles, (ii) a sub-critical instability leading, below a critical velocity, to a cross-hatched regime due to straight macrosteps drifting at the same magic angles and nucleated on crack-pinning network inhomogeneities. Step height values are determined by the width of the strain-hardened zone, governed by the elastic crack blunting characteristic of soft solids with breaking stresses much larger that low strain moduli.

Tristan Baumberger; Christiane Caroli; David Martina; Olivier Ronsin

2008-02-29T23:59:59.000Z

364

Acoustic cross-correlation flowmeter for solid-gas flow  

DOE Patents [OSTI]

Apparatus for measuring particle velocity in a solid-gas flow within a pipe includes: first and second transmitting transducers for transmitting first and second ultrasonic signals into the pipe at first and second locations, respectively, along the pipe; an acoustic decoupler, positioned between said first and second transmitting transducers, for acoustically isolating said first and second signals from one another; first and second detecting transducers for detecting said first and second signals and for generating first and second detected signals; and means for cross-correlating said first and second output signals.

Sheen, S.H.; Raptis, A.C.

1984-05-14T23:59:59.000Z

365

Fission cross section calculations of actinides with EMPIRE code  

SciTech Connect (OSTI)

The cross sections of the neutron induced reactions on {sup 233,234,236}U, {sup 237}Np, {sup 238,242}Pu, {sup 241,243}Am, {sup 242,246}Cm carried out in the energy range 1 keV-20 MeV with EMPIRE code are presented, emphasizing the fission channel. Beside a consistent, accurate set of evaluations, the paper contains arguments supporting the choice of the reaction models and input parameters. A special attention is paid to the fission parameters and their uncertainties.

Sin, M.; Oblozinsky, P.; Herman,M.; Capote,R.

2010-04-30T23:59:59.000Z

366

Parton distributions with the combined HERA charm production cross sections  

SciTech Connect (OSTI)

Heavy quark structure functions from HERA provide a direct handle on the medium and small-x gluon PDF. In this contribution, we discuss ongoing progress on the implementation of the FONLL General-Mass scheme with running heavy quark masses, and of its benchmarking with the HOPPET and OpenQCDrad codes, and then present the impact of the recently released combined HERA charm production cross sections in the NNPDF 2.3 analysis. We find that the combined charm data contribute to constraining the gluon and quarks at small values of Bjorken-x.

Bertone, Valerio [Physikalisches Institut, Albert-Ludwigs-Universitaet Freiburg, Hermann-Herder-Strasse 3, D-79104 Freiburg i. B (Germany); Rojo, Juan [PH Department, TH Unit, CERN, CH-1211 Geneva 23 (Switzerland)

2013-04-15T23:59:59.000Z

367

Lowry Crossing, Texas: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat JumpInc Place:KeystoneSolarListLiveFuelsLoupInyo County,Lowry Crossing,

368

MHK Projects/Morgan Bend Crossing Project | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat JumpIncMAK Technologies JumpLuangwa Zambia5.1719°,Crossing Project <

369

Cross Lanes, West Virginia: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin:EnergyWisconsin:2003) |Cordova39.Crockett, California:CrookCross Lanes, West

370

Cross Plains, Wisconsin: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin:EnergyWisconsin:2003) |Cordova39.Crockett, California:CrookCross Lanes,

371

Disappearing Pens Cross Out Petroleum | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat Pump Models |Conduct, Parent(CRADA and DOW Automotive)Disappearing Pens Cross Out

372

CROSS VALIDATION OF SATELLITE RADIATION TRANSFER MODELS DURING SWERA PROJECT  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin: EnergyBoston Areais3: Crystalline Rock -COPPE Incubator JumpISES- 2003 CROSS

373

Microsoft Word - 2007 Cross Cut - APS response.doc  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces andMapping RichlandScatteringWater308:UFC 2300.00 Department ofMay Cross Cut

374

American Red Cross Blood Drive Hanford Health and Safety Exposition  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to someone by E-mail ShareRed Cross Blood Drive Hanford Health and Safety

375

Systems Engineering  

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

Systems Engineering Systems Engineering is a holistic engineering discipline that provides systems analysis, systems integration, decision analysis, and systems science products...

376

Reinforcement Mechanisms in Polymer Nanotube Composites: Simulated Non-Bonded and Cross-Linked Systems  

E-Print Network [OSTI]

of magnitude larger than the non-bonded composites. INTRODUCTION Composite materials consisting of carbon of three simulations related to the issue of load transfer in carbon nanotube/polymer composites is given the conditions under which stress transfer may occur in composite materials, and therefore provide insight on how

Bebendorf, Mario

377

Overview of UIUC's Concrete Cross-tie and Fastening System Laboratory Study  

E-Print Network [OSTI]

· Instrumentation plan overview · Preliminary laboratory test ­ Built up load cell feasibility study ­ Partial the flow of forces Lab-Field · Develop field instrumentation plan · Develop test load conditions Lab measurement (strain gauges) · Deflection measurement (LVDT/potentiometers) · Load transfer measurement (load

Barkan, Christopher P.L.

378

Hybrid gas bearings with controlled supply pressure to eliminate rotor vibrations while crossing system critical speeds  

E-Print Network [OSTI]

Micro-turbomachinery (MTM) implements gas bearings in compact units of enhanced mechanical reliability. Gas bearings, however, have little damping and are prone to wear during frequent rotor start-up and shut down conditions. Externally pressurized...

Ryu, Keun

2009-05-15T23:59:59.000Z

379

Crossing the Hopf Bifurcation in a Live Predator-Prey System  

E-Print Network [OSTI]

that consists of planktonic rotifers, Brachio- nus calyciflorus, feeding on unicellular green algae, Chlorella

Fussman, Gregor

380

Advanced Reciprocating Engine Systems (ARES) R&D - Cross-Cutting Technologies Enable Efficient manufacturing  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergy Cooperation |South ValleyASGovLtr.pdfAboutSheet, AprilEdward Lyford-Pike,This presentation

Note: This page contains sample records for the topic "thunderstorm system crossed" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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381

Crossing the Line: Towards increasingly fruitful complex systems research for the physics community  

E-Print Network [OSTI]

This article addresses broad trends in interdisciplinary research in physics where interactions with colleagues in fields such as computer science, ecology, or economics can often be derailed by unintentional clashes of methodologies and perspectives on the core science. Key causes of such breakdowns in interdisciplinary work are detailed and solutions offered.

Reginald D. Smith

2011-09-26T23:59:59.000Z

382

SAFETY ANALYSIS OF A RADIO-BASED CROSSING CONTROL SYSTEM USING FORMAL  

E-Print Network [OSTI]

), failure mode and e#11;ects anal- ysis (FMEA) (Reifer 1979), or hazard and oper- ability analysis (HAZOP

Reif, Wolfgang

383

Validation of a cross-section interface for PARCS  

SciTech Connect (OSTI)

This paper deals with the validation of a cross-section interface for the PARCS code. Such an interface, of which the development is reported in [1], allows providing realistic sets of material constants to PARCS, so that the full dependence of these data on history variables, instantaneous variables, and exposure can be accounted for. In order to check the proper implementation of this interface, the PARCS code was benchmarked against actual plant data (relative power distribution throughout the core and criticality condition). For that purpose, the Swedish Ringhals-3 Pressurized Water Reactor was considered. Different fuel cycles and within each cycle different core exposures were investigated. The cross-section data for each fuel/reflector assembly constituting the considered cores were created accordingly. The spatial distributions of the instantaneous conditions, of the history effects, as well as of the burnup, were taken from the results of SIMULATE-3 calculations. It was found that PARCS was able to reproduce the relative distribution of the power within the core. Both the measured axial and radial power profiles were correctly calculated by PARCS. On the average, the deviation between the calculated and measured power distributions is within acceptable limits. Concerning the determination of the core criticality, the deviation of the effective multiplication factor from unity is typically within {+-}200 pcm. (authors)

Staalek, M.; Demaziere, C. [Dept. of Nuclear Engineering, Chalmers Univ. of Technology, 412 96 Goeteborg (Sweden)

2006-07-01T23:59:59.000Z

384

Effect of strongly coupled plasma on photoionization cross section  

SciTech Connect (OSTI)

The effect of strongly coupled plasma on the ground state photoionization cross section is studied. In the non relativistic dipole approximation, cross section is evaluated from bound-free transition matrix element. The bound and free state wave functions are obtained by solving the radial Schrodinger equation with appropriate plasma potential. We have used ion sphere potential (ISP) to incorporate the plasma effects in atomic structure calculation. This potential includes the effect of static plasma screening on nuclear charge as well as the effect of confinement due to the neighbouring ions. With ISP, the radial equation is solved using Shooting method approach for hydrogen like ions (Li{sup +2}, C{sup +5}, Al{sup +12}) and lithium like ions (C{sup +3}, O{sup +5}). The effect of strong screening and confinement is manifested as confinement resonances near the ionization threshold for both kinds of ions. The confinement resonances are very much dependent on the edge of the confining potential and die out as the plasma density is increased. Plasma effect also results in appearance of Cooper minimum in lithium like ions, which was not present in case of free lithium like ions. With increasing density the position of Cooper minimum shifts towards higher photoelectron energy. The same behaviour is also true for weakly coupled plasma where plasma effect is modelled by Debye-Huckel potential.

Das, Madhusmita, E-mail: msdas@barc.gov.in [Department of Physics, Indian Institute of Technology, Powai, Mumbai 400076, India and Theoretical Physics Division, Bhabha Atomic Research Center, Mumbai 400085 (India)] [Department of Physics, Indian Institute of Technology, Powai, Mumbai 400076, India and Theoretical Physics Division, Bhabha Atomic Research Center, Mumbai 400085 (India)

2014-01-15T23:59:59.000Z

385

Neutron cross section standards and instrumentation. Annual report  

SciTech Connect (OSTI)

The objective of this interagency program is to provide accurate neutron interaction measurements for the US Department of Energy nuclear programs which include waste disposal, fusion, safeguards, defense, fission, and personnel protection. These measurements are also useful to other energy programs which indirectly use the unique properties of the neutron for diagnostic and analytical purposes. The work includes the measurement of reference cross sections and related neutron data employing unique facilities and capabilities at NIST and other laboratories as required; leadership and participation in international intercomparisons and collaborations; the preservation of standard reference deposits and the development of improved neutron detectors and measurement methods. A related and essential element of the program is critical evaluation of neutron interaction data including international coordinations. Data testing of critical data for important applications is included. The program is jointly supported by the Department of Energy and the National Institute of Standards and Technology. This report from the National Institute of Standards and Technology contains a summary of the accomplishments of the Neutron Cross Section Standards and Instrumentation Project during the third year of this three-year interagency agreement. The proposed program and required budget for the following three years are also presented. The program continues the shifts in priority instituted in order to broaden the program base.

Wasson, O.A.

1993-07-01T23:59:59.000Z

386

Solid oxide fuel cell having compound cross flow gas patterns  

DOE Patents [OSTI]

A core construction for a fuel cell is disclosed having both parallel and cross flow passageways for the fuel and the oxidant gases. Each core passageway is defined by electrolyte and interconnect walls. Each electrolyte wall consists of cathode and anode materials sandwiching an electrolyte material. Each interconnect wall is formed as a sheet of inert support material having therein spaced small plugs of interconnect material, where cathode and anode materials are formed as layers on opposite sides of each sheet and are electrically connected together by the interconnect material plugs. Each interconnect wall in a wavy shape is connected along spaced generally parallel line-like contact areas between corresponding spaced pairs of generally parallel electrolyte walls, operable to define one tier of generally parallel flow passageways for the fuel and oxidant gases. Alternate tiers are arranged to have the passageways disposed normal to one another. Solid mechanical connection of the interconnect walls of adjacent tiers to the opposite sides of the common electrolyte wall therebetween is only at spaced point-like contact areas, 90 where the previously mentioned line-like contact areas cross one another.

Fraioli, A.V.

1983-10-12T23:59:59.000Z

387

Deeply virtual Compton Scattering cross section measured with CLAS  

SciTech Connect (OSTI)

The Generalized Parton Distributions (GPDs) provide a new description of nucleon structure in terms of its elementary constituents, the quarks and the gluons. Including and extending the information provided by the form factors and the parton distribution functions, they describe the correlation between the transverse position and the longitudinal momentum fraction of the partons in the nucleon. Deeply Virtual Compton Scattering (DVCS), the electroproduction of a real photon on a single quark in the nucleon eN --> e'N'g, is the exclusive process most directly interpretable in terms of GPDs. A dedicated experiment to study DVCS with the CLAS detector at Jefferson Lab has been carried out using a 5.9-GeV polarized electron beam and an unpolarized hydrogen target, allowing us to collect DVCS events in the widest kinematic range ever explored in the valence region : 1.0 < Q2 < 4.6 GeV2, 0.1 < xB < 0.58 and 0.09 < -t < 2.0 GeV2. In this paper, we show preliminary results of unpolarized cross sections and of polarized cross section differences for the DVCS channel.

Guegan, Baptistse [Institut de Physique Nucleaire, Orsay

2014-09-01T23:59:59.000Z

388

Elastic Cross Sections for Electron Collisions with Molecules Relevant to Plasma Processing  

SciTech Connect (OSTI)

Absolute electron-impact cross sections for molecular targets, including their radicals, are important in developing plasma reactors and testing various plasma processing gases. Low-energy electron collision data for these gases are sparse and only the limited cross section data are available. In this report, elastic cross sections for electron-polyatomic molecule collisions are compiled and reviewed for 17 molecules relevant to plasma processing. Elastic cross sections are essential for the absolute scale conversion of inelastic cross sections, as well as for testing computational methods. Data are collected and reviewed for elastic differential, integral, and momentum transfer cross sections and, for each molecule, the recommended values of the cross section are presented. The literature has been surveyed through early 2010.

Yoon, J.-S.; Song, M.-Y.; Kato, H.; Hoshino, M.; Tanaka, H.; Brunger, M. J.; Buckman, S. J.; Cho, H. [National Fusion Research Institute, Gwahangno 113, Yuseong-gu, Daejeon 305-333 (Korea, Republic of); Department of Material and Life Sciences, Sophia University, Tokyo 102-8554 (Japan); ARC Centre for Antimatter-Matter Studies, School of Chemical and Physical Sciences, Flinders University, GPO Box 2100, Adelaide, South Australia 5001 (Australia); ARC Centre for Antimatter-Matter Studies, Research School of Physics and Engineering, Australian National University, Canberra, Australian Capital Territory 0200 (Australia); Physics Department, Chungnam National University, Daejeon 305-764 (Korea, Republic of)

2010-09-15T23:59:59.000Z

389

Blue Cross and Blue Shield of Florida is now Florida Blue State Employees' PPO Plan health insurance provider Blue Cross and Blue Shield of  

E-Print Network [OSTI]

Blue Cross and Blue Shield of Florida is now Florida Blue State Employees' PPO Plan health insurance provider Blue Cross and Blue Shield of Florida has recently changed its name to Florida Blue Resources Benefits Office at (850) 6444015, or insben@admin.fsu.edu. RELATED LINKS ­ Florida Blue

Ronquist, Fredrik

390

Identification of Protein-Protein Interactions and Topologies in Living Cells with Chemical Cross-linking and Mass Spectrometry  

SciTech Connect (OSTI)

We present results from a novel strategy that enables concurrent identification of protein-protein interactions and topologies in living cells without specific antibodies or genetic manipulations for immuno/affinity purifications. The strategy consists of: (i) chemical cross-linking reaction: intact cell labeling with a novel class of chemical cross-linkers, protein interaction reporters (PIRs); (ii) two-stage mass spectrometric analysis: stage 1 identification of PIR-labeled proteins and construction of a restricted database by 2D-LC/MS/MS; and stage 2 analysis of PIR-labeled peptides by multiplexed LC/FTICR-MS; (iii) data analysis: identification of cross-linked peptides and proteins of origin using accurate mass and other constraints. The primary advantage of the PIR approach and distinction from current technology is that protein interactions together with topologies are detected in native biological systems by stabilizing protein complexes with new covalent bonds while the proteins are present in the original cellular environment. Thus, weak or transient interactions or interactions that require properly folded, localized, or membrane-bound proteins can be labeled and identified through the PIR approach. This strategy was applied to S. oneidensis bacterial cells and initial studies resulted in identification of a set of protein-protein interactions and their contact/binding regions. Furthermore, most identified interactions involved membrane proteins, suggesting the PIR approach is particularly suited for studies of membrane protein-protein interactions, an area under-represented with current widely-used approaches.

Zhang, Haizhen; Tang, Xiaoting; Munske, Gerhard R.; Tolic, Nikola; Anderson, Gordon A.; Bruce, James E.

2009-03-01T23:59:59.000Z

391

SPRING 2003 C I R AC I R A  

E-Print Network [OSTI]

12 14 Dryline Thunderstorm Development...........14 Cover photo courtesy of U.S. Department systems from seeing objects near the ground from an aircraft or space- based sensor. Conversely, opaque

Collett Jr., Jeffrey L.

392

Dusty gust fronts and their contributions to long-lived convection in West Africa/  

E-Print Network [OSTI]

To model and predict the behavior of West African storms and mesoscale convective systems (MCSs), we must understand the life cycle of gust fronts, which invariably accompany thunderstorms and often initiate them. In this ...

McGraw-Herdeg, Michael (Michael P.)

2010-01-01T23:59:59.000Z

393

An Open-Source Learning Content Management and Assessment System  

E-Print Network [OSTI]

LON-CAPA An Open-Source Learning Content Management and Assessment System Gerd Kortemeyer Michigan system an assessment system around since 1992 #12;Free and Open-Source · Free: "Free beer=split(/\\,/,$line); $username=$entries[4]; _ #12;Campus A Campus B LON-CAPA Architecture Shared Cross-Institutional Resource

394

An Open-Source Learning Content Management and Assessment System  

E-Print Network [OSTI]

LON-CAPA An Open-Source Learning Content Management and Assessment System Gerd Kortemeyer-CAPA is free open-source a learning content management system an assessment system around since 1992 #12 Cross-Institutional Resource Library (Base de Dados Compartilhada entre Instituições) Resource Assembly

395

2014 Global Level Crossing Safety & Trespass Prevention Symposium  

E-Print Network [OSTI]

Integrated into Train Control System Next UP/Lombard ­ Metra Corridor with Traffic Signal Interconnect FLIR

Illinois at Urbana-Champaign, University of

396

Stabilized PV system  

DOE Patents [OSTI]

A stabilized PV system comprises an array of photovoltaic (PV) assemblies mounted to a support surface. Each PV assembly comprises a PV module and a support assembly securing the PV module to a position overlying the support surface. The array of modules is circumscribed by a continuous, belt-like perimeter assembly. Cross strapping, extending above, below or through the array, or some combination of above, below and through the array, secures a first position along the perimeter assembly to at least a second position along the perimeter assembly thereby stabilizing the array against wind uplift forces. The first and second positions may be on opposite sides on the array.

Dinwoodie, Thomas L. (Piedmont, CA)

2002-12-17T23:59:59.000Z

397

Reactor vessel support system  

DOE Patents [OSTI]

A reactor vessel support system includes a support ring at the reactor top supported through a box ring on a ledge of the reactor containment. The box ring includes an annular space in the center of its cross-section to reduce heat flow and is keyed to the support ledge to transmit seismic forces from the reactor vessel to the containment structure. A coolant channel is provided at the outside circumference of the support ring to supply coolant gas through the keyways to channels between the reactor vessel and support ledge into the containment space.

Golden, Martin P. (Trafford, PA); Holley, John C. (McKeesport, PA)

1982-01-01T23:59:59.000Z

398

OBSERVATION OF FLUX-TUBE CROSSINGS IN THE SOLAR WIND  

SciTech Connect (OSTI)

Current sheets are ubiquitous in the solar wind. They are a major source of the solar wind MHD turbulence intermittency. They may result from nonlinear interactions of the solar wind MHD turbulence or are the boundaries of flux tubes that originate from the solar surface. Some current sheets appear in pairs and are the boundaries of transient structures such as magnetic holes and reconnection exhausts or the edges of pulsed Alfven waves. For an individual current sheet, discerning whether it is a flux-tube boundary or due to nonlinear interactions or the boundary of a transient structure is difficult. In this work, using data from the Wind spacecraft, we identify two three-current-sheet events. Detailed examination of these two events suggests that they are best explained by the flux-tube-crossing scenario. Our study provides convincing evidence supporting the scenario that the solar wind consists of flux tubes where distinct plasmas reside.

Arnold, L.; Li, G.; Li, X. [Department of Physics and CSPAR, University of Alabama in Huntsville, Huntsville, AL 35899 (United States)] [Department of Physics and CSPAR, University of Alabama in Huntsville, Huntsville, AL 35899 (United States); Yan, Y., E-mail: gang.li@uah.edu [Key Laboratory of Solar Activity, National Astronomical Observatories of Chinese Academy of Sciences, Beijing 100012 (China)

2013-03-20T23:59:59.000Z

399

Calculations on permanent-magnet quadrupoles with nonrectangular cross section  

SciTech Connect (OSTI)

The current trend toward higher frequencies to power drift-tube linacs (DTLs) and coupled-cavity linacs (CCLs) reduces the space available for quadrupole focusing magnets. Similarly, the space available for matching sections between linac sections is limited, and often the matching section bunchers are designed in odd shapes to make them fit. This shaping further restricts focusing magnet space. One approach to attaining sufficient quadrupole strength is such situations is to use rare-earth permanent-magnet quadrupoles (PMQs) with cross sections tailored to fill as much of the available space as possible. In this paper, we describe some techniques we have developed to calculate the properties of such magnets both singly and when other magnets are nearby. 3 refs., 4 figs.

Boicourt, G.P.; Merson, J.L.

1988-01-01T23:59:59.000Z

400

The stellar (n,gamma) cross section of 62Ni  

E-Print Network [OSTI]

The 62Ni(n,gamma)63Ni(t_1/2=100+-2 yrs) reaction plays an important role in the control of the flow path of the slow neutron-capture (s-) nucleosynthesis process. We have measured for the first time the total cross section of this reaction for a quasi-Maxwellian (kT = 25 keV) neutron flux. The measurement was performed by fast-neutron activation, combined with accelerator mass spectrometry to detect directly the 63Ni product nuclei. The experimental value of 28.4+-2.8 mb, fairly consistent with a recent theoretical estimate, affects the calculated net yield of 62Ni itself and the whole distribution of nuclei with 62

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


401

Research on Combinatorial Statistics: Crossings and Nestings in Discrete Structures  

E-Print Network [OSTI]

(Xn ? ?n n ? x) = 1p2? Z x ?1 e?y2=2dy: Analogues of Thorems 2 and 3 for set partitions are not known. In section 2.4 we give a continued fraction expansion of P?2?n qcr(?)pne(?). Unfortunately, k-crossings and k-nestings for k ? 3 seem to be a lot...), the major index of each permutation is equal to the major index of the 7 corresponding set partition. Moreover, X type(?)=(S;T ) qpmaj(?) = X type(?)=(S;T ) qcr(?): (1.2) 1.3. Fillings of moon polyominoes A polyomino is a flnite subset of Z2, where...

Poznanovikj, Svetlana

2011-10-21T23:59:59.000Z

402

AFCI-2.0 Library of Neutron Cross Section Covariances  

SciTech Connect (OSTI)

Neutron cross section covariance library has been under development by BNL-LANL collaborative effort over the last three years. The primary purpose of the library is to provide covariances for the Advanced Fuel Cycle Initiative (AFCI) data adjustment project, which is focusing on the needs of fast advanced burner reactors. The covariances refer to central values given in the 2006 release of the U.S. neutron evaluated library ENDF/B-VII. The preliminary version (AFCI-2.0beta) has been completed in October 2010 and made available to the users for comments. In the final 2.0 release, covariances for a few materials were updated, in particular new LANL evaluations for {sup 238,240}Pu and {sup 241}Am were adopted. BNL was responsible for covariances for structural materials and fission products, management of the library and coordination of the work, while LANL was in charge of covariances for light nuclei and for actinides.

Herman, M.; Herman,M.; Oblozinsky,P.; Mattoon,C.; Pigni,M.; Hoblit,S.; Mughabghab,S.F.; Sonzogni,A.; Talou,P.; Chadwick,M.B.; Hale.G.M.; Kahler,A.C.; Kawano,T.; Little,R.C.; Young,P.G.

2011-06-26T23:59:59.000Z

403

Habitat types of the Eastern Cross Timbers of Texas  

E-Print Network [OSTI]

wells of north-central Texas. When timber is cut from any portion of the Cross Timbers, and porous sandy soil exposed to the plow, rapid erosion begins, the area is destroyed mOIN 0 I O N Ill& Ifiro Chhl Oimoec co rn rn hl w rnLA cr Io o N mme... mmril chio OCO %CO CF ril IA m hl IO hl chl m wm mNNWNNLA m4 o' N o 4' c ch c&e mrn mLALo Io c- CD o c 0 wco hl hl N 0 4 0 0 I I 0 CO cFIIA LAO chN I COP LAIC O m LA CF Lfi ril rn co CFI O chio m I NCOOCO N N m IA IO LA CFI N CI IO I...

Marcy, Larry Eugene

2012-06-07T23:59:59.000Z

404

Infrared Safety in Factorized Hard Scattering Cross-Sections  

E-Print Network [OSTI]

The rules of soft-collinear effective theory can be used naively to write hard scattering cross-sections as convolutions of separate hard, jet, and soft functions. One condition required to guarantee the validity of such a factorization is the infrared safety of these functions in perturbation theory. Using e+e- angularity distributions as an example, we propose and illustrate an intuitive method to test this infrared safety at one loop. We look for regions of integration in the sum of Feynman diagrams contributing to the jet and soft functions where the integrals become infrared divergent. Our analysis is independent of an explicit infrared regulator, clarifies how to distinguish infrared and ultraviolet singularities in pure dimensional regularization, and demonstrates the necessity of taking zero-bins into account to obtain infrared-safe jet functions.

Andrew Hornig; Christopher Lee; Grigory Ovanesyan

2009-05-13T23:59:59.000Z

405

Microchannel cross load array with dense parallel input  

DOE Patents [OSTI]

An architecture or layout for microchannel arrays using T or Cross (+) loading for electrophoresis or other injection and separation chemistry that are performed in microfluidic configurations. This architecture enables a very dense layout of arrays of functionally identical shaped channels and it also solves the problem of simultaneously enabling efficient parallel shapes and biasing of the input wells, waste wells, and bias wells at the input end of the separation columns. One T load architecture uses circular holes with common rows, but not columns, which allows the flow paths for each channel to be identical in shape, using multiple mirror image pieces. Another T load architecture enables the access hole array to be formed on a biaxial, collinear grid suitable for EDM micromachining (square holes), with common rows and columns.

Swierkowski, Stefan P.

2004-04-06T23:59:59.000Z

406

X-ray pump optical probe cross-correlation study of GaAs  

SciTech Connect (OSTI)

Ultrafast dynamics in atomic, molecular and condensed-matter systems are increasingly being studied using optical-pump, X-ray probe techniques where subpicosecond laser pulses excite the system and X-rays detect changes in absorption spectra and local atomic structure. New opportunities are appearing as a result of improved synchrotron capabilities and the advent of X-ray free-electron lasers. These source improvements also allow for the reverse measurement: X-ray pump followed by optical probe. We describe here how an X-ray pump beam transforms a thin GaAs specimen from a strong absorber into a nearly transparent window in less than 100 ps, for laser photon energies just above the bandgap. We find the opposite effect - X-ray induced optical opacity - for photon energies just below the bandgap. This raises interesting questions about the ultrafast many-body response of semiconductors to X-ray absorption, and provides a new approach for an X-ray/optical cross-correlator for synchrotron and X-ray free-electron laser applications.

Durbin, S.M.; Clevenger, T.; Graber, T.; Henning, R. (Purdue); (UC)

2012-09-10T23:59:59.000Z

407

Validation of Nuclear Criticality Safety Software and 27 energy group ENDF/B-IV cross sections  

SciTech Connect (OSTI)

The validation documented in this report is based on calculations that were executed during June through August 1992, and was completed in June 1993. The statistical analyses in Appendix C and Appendix D were completed in October 1993. This validation gives Portsmouth NCS personnel a basis for performing computerized KENO V.a calculations using the Martin Marietta Nuclear Criticality Safety Software. The first portion of the document outlines basic information in regard to validation of NCSS using ENDF/B-IV 27-group cross sections on the IBM 3090 at ORNL. A basic discussion of the NCSS system is provided, some discussion on the validation database and validation in general. Then follows a detailed description of the statistical analysis which was applied. The results of this validation indicate that the NCSS software may be used with confidence for criticality calculations at the Portsmouth Gaseous Diffusion Plant. When the validation results are treated as a single group, there is 95% confidence that 99.9% of future calculations of similar critical systems will have a calculated K{sub eff} > 0.9616. Based on this result the Portsmouth Nuclear Criticality Safety Department has adopted the calculational acceptance criteria that a k{sub eff} + 2{sigma} {le} 0.95 is safety subcritical. The validation of NCSS on the IBM 3090 at ORNL was extended to include NCSS on the IBM 3090 at K-25.

Lee, B.L. Jr.

1994-08-01T23:59:59.000Z

408

Measurement of electron neutrino CCQE-like cross-section in MINERvA  

E-Print Network [OSTI]

The electron-neutrino charged-current quasi-elastic (CCQE) cross-section on nuclei is an important input parameter to appearance-type neutrino oscillation experiments. Current experiments typically work from the muon neutrino cross-section and apply corrections from theoretical arguments to obtain a prediction for the electron neutrino cross-section, but to date there has been no experimental verification of the estimates for this channel at an energy scale appropriate to such experiments. We present a preliminary result from the MINERvA experiment on the first measurement of an exclusive reaction in few-GeV electron neutrino interactions, namely, the cross-section for a CCQE-like process. The result is given both as differential cross-sections vs. the electron energy, electron angle, and $Q^{2}$, as well as a total cross-section vs. neutrino energy.

Wolcott, Jeremy

2015-01-01T23:59:59.000Z

409

U-093: Mozilla Firefox Multiple Flaws Permit Remote Code Execution, Information Disclosure, and Cross-Site Scripting Attacks  

Broader source: Energy.gov [DOE]

Mozilla Firefox Multiple Flaws Permit Remote Code Execution, Information Disclosure, and Cross-Site Scripting.

410

Enhanced Fusion-Evaporation Cross Sections in Neutron-Rich $^{132}$Sn on $^{64}$Ni  

E-Print Network [OSTI]

Evaporation residue cross sections have been measured with neutron-rich radioactive $^{132}$Sn beams on $^{64}$Ni in the vicinity of the Coulomb barrier. The average beam intensity was $2\\times 10^{4}$ particles per second and the smallest cross section measured was less than 5 mb. Large subbarrier fusion enhancement was observed. Coupled-channels calculations taking into account inelastic excitation and neutron transfer underpredict the measured cross sections below the barrier.

J. F. Liang; D. Shapira; C. J. Gross; J. R. Beene; J. D. Bierman; A. Galindo-Uribarri; J. Gomez del Campo; P. A. Hausladen; Y. Larochelle; W. Loveland; P. E. Mueller; D. Peterson; D. C. Radford; D. W. Stracener; R. L. Varner

2003-04-02T23:59:59.000Z

411

Influence of the ab-initio nd cross sections in the critical heavy-water benchmarks  

E-Print Network [OSTI]

The n-d elastic and breakup cross sections are computed by solving the three-body Faddeev equations for realistic and semi-realistic Nucleon-Nucleon potentials. These cross sections are inserted in the Monte Carlo simulation of the nuclear processes considered in the International Handbook of Evaluated Criticality Safety Benchmark Experiments (ICSBEP). The results obtained using thes ab initio n-d cross sections are compared with those provided by the most renown international libraries.

B. Morillon; R. Lazauskas; J. Carbonell

2013-11-15T23:59:59.000Z

412

Influence of the ab-initio nd cross sections in the critical heavy-water benchmarks  

E-Print Network [OSTI]

The n-d elastic and breakup cross sections are computed by solving the three-body Faddeev equations for realistic and semi-realistic Nucleon-Nucleon potentials. These cross sections are inserted in the Monte Carlo simulation of the nuclear processes considered in the International Handbook of Evaluated Criticality Safety Benchmark Experiments (ICSBEP). The results obtained using thes ab initio n-d cross sections are compared with those provided by the most renown international libraries.

Morillon, B; Carbonell, J

2013-01-01T23:59:59.000Z

413

Enhancements to passive warning devices for use at railroad-highway grade crossings  

E-Print Network [OSTI]

The Oregon PUC has currently installed illumination at over 35 rural passively controlled crossings with regular nighttime train movements. The following specifications have been used for installation. 1. At least one luminaire shall be mounted on each... side of the tracks at the crossing. Luminaires should be located so that warning devices at the crossing will be directly illuminated. 28 2. Luminaires shall be oriented toward the railroad track to provide at least one foot-candle of illumination...

Mynier, Charles Leroy

1992-01-01T23:59:59.000Z

414

PV Supply Chain and Cross-Cutting Technologies: Upcoming Funding Opportunity  

SciTech Connect (OSTI)

Summarizes the Solar Program's upcoming funding opportunity, called PV Supply Chain and Cross-Cutting Technologies, which is expected to be open by the end of October 2008.

Not Available

2008-10-01T23:59:59.000Z

415

Differential cross sections for the ionization of oriented H2 molecules by electron-impact  

SciTech Connect (OSTI)

A nonperturbative close-coupling technique is used to calculate differential cross sections for the electron-impact ionization of H{sub 2} at an energy of 35.4 eV. Our approach allows cross sections for any orientation of the molecule with respect to the incident electron beam to be analyzed. New features in the resulting cross sections are found compared with the case where the molecular orientation is averaged, and also with cross sections for He at equivalent electron kinematics. When averaged over all possible molecular orientations, good agreement is found with recent experimental results.

Colgan, James P [Los Alamos National Laboratory; Pindzola, M S [AUBURN UNIV; Kaiser, C [UNIV MANCHESTER; Madison, D H [MISSOURI INST.; Robicheaux, F [AUBURN UNIV; Balance, J [ROLLINS COLLEGE

2008-01-01T23:59:59.000Z

416

ageing melsha cross-sectional: Topics by E-print Network  

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

Astrophysics (arXiv) Summary: We review and analyze the available information for nuclear fusion cross sections that are most important for solar energy generation and...

417

Mechanical analysis of a cross flow filter. Final report, January 31, 1995  

SciTech Connect (OSTI)

A cross flow filter for particulate control is described. Objectives were to improve the reliability and mechanical integrity of the filter.

NONE

1998-12-31T23:59:59.000Z

418

Hawaii Clean Energy Initiative Permit to Cross or Enter the State...  

Open Energy Info (EERE)

Reference LibraryAdd to library PermittingRegulatory Guidance - Instructions: Hawaii Clean Energy Initiative Permit to Cross or Enter the State Energy CorridorPermitting...

419

E-Print Network 3.0 - adjusted cross section Sample Search Results  

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

overhead triggered by this cross-layered ... Source: Jaffrs-Runser, Katia - Centre of Innovation in Telecommunications and Integration of Services, INSA Lyon Collection:...

420

Measurement on the thermal neutron capture cross section of w-180  

E-Print Network [OSTI]

We have measured the thermal neutron capture cross section for w-180 nucleus. There is only one previous data on this cross section with a value of 30 $^{+300%}_{-100%}$ barn. To consider w-181 as a low energy neutrino source, the thermal neutron capture cross section should be measured more precisely to estimate the production rate of w-181 inside a nuclear reactor. We measured the cross section of w-180 with a natural tungsten foil and obtained a new value of 21.9 $\\pm$ 2.5 barn

W. G. Kang; Y. D. Kim; J. I. Lee; I. S. Hahn; A. R. Kim; H. J. Kim

2007-04-24T23:59:59.000Z

Note: This page contains sample records for the topic "thunderstorm system crossed" 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

Measurements of Neutron Induced Cross Sections at the Oak Ridge Electron Linear Accelerator  

SciTech Connect (OSTI)

We have used the Oak Ridge Electron Linear Accelerator (ORELA) to measure neutron total and the fission cross sections of 233U in the energy range from 0.36 eV to ~700 keV. We report average fission and total cross sections. Also, we measured the neutron total cross sections of 27Al and Natural chlorine as well as the capture cross section of Al over an energy range from 100 eV up to about 400 keV.

Guber, K.H.; Harvey, J.A.; Hill, N.W.; Koehler, P.E.; Leal, L.C.; Sayer, R.O.; Spencer, R.R.

1999-09-20T23:59:59.000Z

422

Influence of projectile neutron number on cross section in cold fusion reactions  

E-Print Network [OSTI]

ON CROSS SECTION IN COLD FUSION REACTIONS I. Dragojevi? ,type of reaction has been referred to as “cold fusion. ”The study of cold fusion reactions is an indispensable

Dragojevic, I.

2008-01-01T23:59:59.000Z

423

E-Print Network 3.0 - amplitudes cross sections Sample Search...  

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

Collection: Physics 3 Physics Letters A 302 (2002) 225228 www.elsevier.comlocatepla Summary: amplitude and of the extinction cross-section from measurements at arbitrary...

424

Girls Will Be Boys: Cross-Dressed Women and the Legitimation of American Silent Cinema  

E-Print Network [OSTI]

ranches. Between 1912 and 1916, however, cross-dressing wasdressing at dances. 66 This culture diminished when open-range herding gave way to family ranches

Horak, Laura

2011-01-01T23:59:59.000Z

425

Single-Well and Cross-Well Seismic At Salt Wells Area (Bureau...  

Open Energy Info (EERE)

Seismic At Salt Wells Area (Bureau of Land Management, 2009) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Single-Well and Cross-Well Seismic...

426

MC2-3: Multigroup Cross-Sections for Fast Reactors | Argonne...  

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

or simplified R-Z core models. The resulting microscopic cross sections are used for fast reactor design and analysis calculations. Applications Nuclear fast reactor simulations...

427

T-590: HP Diagnostics Input Validation Hole Permits Cross-Site Scripting Attacks  

Broader source: Energy.gov [DOE]

A potential security vulnerability has been identified in HP Diagnostics. The vulnerability could be exploited remotely resulting in cross site scripting (XSS).

428

V-146: HP Service Manager Bugs Permit Cross-Site Scripting and...  

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

Cross-Site Scripting and Information Disclosure Attacks PLATFORM: Service Manager v9.31 Web Tier ABSTRACT: Two vulnerabilities were reported in HP Service Manager REFERENCE LINKS:...

429

Holy Cross Energy- WE CARE Commercial Energy Efficiency Rebate Program (Colorado)  

Broader source: Energy.gov [DOE]

Holy Cross offers a wide variety of prescriptive rebates for energy efficient equipment purchased by its commercial customers. Equipment must be replacing existing working equipment to qualify. The...

430

Holy Cross Energy- WE CARE Residential Energy Efficiency Rebate Program (Coloado)  

Broader source: Energy.gov [DOE]

Holy Cross Energy, a Touchstone Energy Cooperative, has developed a voluntary carbon reduction strategy designed to slow the growth of carbon dioxide emissions created in the generation of...

431

Measurement of the thermal neutron capture cross section of {sup 180}W  

SciTech Connect (OSTI)

We measured the thermal neutron capture cross section for the {sup 180}W nucleus. There is only one previous measurement with regard to this cross section, and it yielded a value of 30 -100%+300% b. To determine whether {sup 181}W is an appropriate low energy neutrino source, the thermal neutron capture cross section should be measured more precisely to estimate the production rate of {sup 181}W inside a nuclear reactor. We measured the cross section of {sup 180}W using a natural tungsten foil and obtained a value of 22.6{+-}1.7 b.

Kang, W. G.; Kim, Y. D.; Lee, J. I.; Hahn, I. S.; Kim, A. R.; Kim, H. J. [Department of Physics, Sejong University, Seoul 143-747 (Korea, Republic of); Department of Science Education, Ewha Woman's University, Seoul 120-750 (Korea, Republic of); Physics Department, Kyungpook National University, Daegu 702-701 (Korea, Republic of)

2007-12-15T23:59:59.000Z

432

Cross-language information retrieval using PARAFAC2.  

SciTech Connect (OSTI)

A standard approach to cross-language information retrieval (CLIR) uses Latent Semantic Analysis (LSA) in conjunction with a multilingual parallel aligned corpus. This approach has been shown to be successful in identifying similar documents across languages - or more precisely, retrieving the most similar document in one language to a query in another language. However, the approach has severe drawbacks when applied to a related task, that of clustering documents 'language-independently', so that documents about similar topics end up closest to one another in the semantic space regardless of their language. The problem is that documents are generally more similar to other documents in the same language than they are to documents in a different language, but on the same topic. As a result, when using multilingual LSA, documents will in practice cluster by language, not by topic. We propose a novel application of PARAFAC2 (which is a variant of PARAFAC, a multi-way generalization of the singular value decomposition [SVD]) to overcome this problem. Instead of forming a single multilingual term-by-document matrix which, under LSA, is subjected to SVD, we form an irregular three-way array, each slice of which is a separate term-by-document matrix for a single language in the parallel corpus. The goal is to compute an SVD for each language such that V (the matrix of right singular vectors) is the same across all languages. Effectively, PARAFAC2 imposes the constraint, not present in standard LSA, that the 'concepts' in all documents in the parallel corpus are the same regardless of language. Intuitively, this constraint makes sense, since the whole purpose of using a parallel corpus is that exactly the same concepts are expressed in the translations. We tested this approach by comparing the performance of PARAFAC2 with standard LSA in solving a particular CLIR problem. From our results, we conclude that PARAFAC2 offers a very promising alternative to LSA not only for multilingual document clustering, but also for solving other problems in cross-language information retrieval.

Bader, Brett William; Chew, Peter; Abdelali, Ahmed (New Mexico State University, Las Cruces, NM); Kolda, Tamara Gibson

2007-05-01T23:59:59.000Z

433

Library System Library System  

E-Print Network [OSTI]

Library System #12;Library System 5150 Anthony Wayne Drive David Adamany Undergraduate Library that for the current fiscal year, we've been given an additional $600,000 for our library materials budget. We're very subscriptions. The Wayne State University Libraries are deeply committed to providing our faculty and students

Cinabro, David

434

Application of nuclear models to neutron nuclear cross section calculations  

SciTech Connect (OSTI)

Nuclear theory is used increasingly to supplement and extend the nuclear data base that is available for applied studies. Areas where theoretical calculations are most important include the determination of neutron cross sections for unstable fission products and transactinide nuclei in fission reactor or nuclear waste calculations and for meeting the extensive dosimetry, activation, and neutronic data needs associated with fusion reactor development, especially for neutron energies above 14 MeV. Considerable progress has been made in the use of nuclear models for data evaluation and, particularly, in the methods used to derive physically meaningful parameters for model calculations. Theoretical studies frequently involve use of spherical and deformed optical models, Hauser-Feshbach statistical theory, preequilibrium theory, direct-reaction theory, and often make use of gamma-ray strength function models and phenomenological (or microscopic) level density prescriptions. The development, application, and limitations of nuclear models for data evaluation are discussed, with emphasis on the 0.1 to 50 MeV energy range. (91 references).

Young, P.G.

1982-01-01T23:59:59.000Z

435

Transrelativistic Synchrotron Emissivity, Cross-Section, and Polarization  

E-Print Network [OSTI]

The spectrum and polarization produced by particles spiraling in a magnetic field undergo dramatic changes as the emitters transition from nonrelativistic to relativistic energies. However, none of the currently available methods for calculating the characteristics of this radiation field are adequate for the purpose of sustaining accuracy and speed of computation in the intensity, and none even attempt to provide a means of determining the polarization fraction other than in the cyclotron or synchrotron limits. But the transrelativistic regime, which we here find to lie between $5\\times 10^7$ K and $5\\times 10^9$ K for a thermal plasma, is becoming increasingly important in high-energy astrophysical environments, such as in the intra-cluster medium, and in the accretion flows of supermassive black holes. In this paper, we present simple, yet highly accurate, fitting formulae for the magnetobremsstrahlung (also known as cyclo-synchrotron) emissivity, its polarization fraction (and content), and the absorption cross-section. We demonstrate that both the harmonic and high-energy limiting behavior are well represented, incurring at most an error of $\\sim 5%$ throughout the transition region.

Brandon Wolfe; Fulvio Melia

2005-05-06T23:59:59.000Z

436

Photodiode arrays having minimized cross-talk between diodes  

SciTech Connect (OSTI)

Photodiode arrays are formed with close diode-to-diode spacing and minimized cross-talk between diodes in the array by isolating the diodes from one another with trenches that are formed between the photodiodes in the array. The photodiodes are formed of spaced regions in a base layer, each spaced region having an impurity type opposite to that of the base layer to define a p-n junction between the spaced regions and the base layer. The base layer meets a substrate at a boundary, with the substrate being much more heavily doped than the base layer with the same impurity type. The trenches extend through the base layer and preferably into the substrate. Minority carriers generated by absorption of light photons in the base layer can only migrate to an adjacent photodiode through the substrate. The lifetime and the corresponding diffusion length of the minority carriers in the substrate is very short so that all minority carriers recombine in the substrate before reaching an adjacent photodiode.

Guckel, Henry (Madison, WI); McNamara, Shamus P. (Madison, WI)

2000-10-17T23:59:59.000Z

437

Neutrino constraints on the dark matter total annihilation cross section  

SciTech Connect (OSTI)

In the indirect detection of dark matter through its annihilation products, the signals depend on the square of the dark matter density, making precise knowledge of the distribution of dark matter in the Universe critical for robust predictions. Many studies have focused on regions where the dark matter density is greatest, e.g., the galactic center, as well as on the cosmic signal arising from all halos in the Universe. We focus on the signal arising from the whole Milky Way halo; this is less sensitive to uncertainties in the dark matter distribution, and especially for flatter profiles, this halo signal is larger than the cosmic signal. We illustrate this by considering a dark matter model in which the principal annihilation products are neutrinos. Since neutrinos are the least detectable standard model particles, a limit on their flux conservatively bounds the dark matter total self-annihilation cross section from above. By using the Milky Way halo signal, we show that previous constraints using the cosmic signal can be improved on by 1-2 orders of magnitude; dedicated experimental analyses should be able to improve both by an additional 1-2 orders of magnitude.

Yueksel, Hasan [Department of Physics, Ohio State University, Columbus, Ohio 43210 (United States); Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210 (United States); Horiuchi, Shunsaku [Department of Physics, School of Science, University of Tokyo, Tokyo 113-0033 (Japan); Beacom, John F. [Department of Physics, Ohio State University, Columbus, Ohio 43210 (United States); Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210 (United States); Department of Astronomy, Ohio State University, Columbus, Ohio 43210 (United States); Ando, Shin'ichiro [California Institute of Technology, Mail Code 130-33, Pasadena, California 91125 (United States)

2007-12-15T23:59:59.000Z

438

Radar-cross-section reduction of wind turbines. part 1.  

SciTech Connect (OSTI)

In recent years, increasing deployment of large wind-turbine farms has become an issue of growing concern for the radar community. The large radar cross section (RCS) presented by wind turbines interferes with radar operation, and the Doppler shift caused by blade rotation causes problems identifying and tracking moving targets. Each new wind-turbine farm installation must be carefully evaluated for potential disruption of radar operation for air defense, air traffic control, weather sensing, and other applications. Several approaches currently exist to minimize conflict between wind-turbine farms and radar installations, including procedural adjustments, radar upgrades, and proper choice of low-impact wind-farm sites, but each has problems with limited effectiveness or prohibitive cost. An alternative approach, heretofore not technically feasible, is to reduce the RCS of wind turbines to the extent that they can be installed near existing radar installations. This report summarizes efforts to reduce wind-turbine RCS, with a particular emphasis on the blades. The report begins with a survey of the wind-turbine RCS-reduction literature to establish a baseline for comparison. The following topics are then addressed: electromagnetic model development and validation, novel material development, integration into wind-turbine fabrication processes, integrated-absorber design, and wind-turbine RCS modeling. Related topics of interest, including alternative mitigation techniques (procedural, at-the-radar, etc.), an introduction to RCS and electromagnetic scattering, and RCS-reduction modeling techniques, can be found in a previous report.

Brock, Billy C.; Loui, Hung; McDonald, Jacob J.; Paquette, Joshua A.; Calkins, David A.; Miller, William K.; Allen, Steven E.; Clem, Paul Gilbert; Patitz, Ward E.

2012-03-05T23:59:59.000Z

439

Neutrino oscillation studies and the neutrino cross section  

E-Print Network [OSTI]

The present uncertainties in the knowledge of the neutrino cross sections for E_nu \\sim 1 GeV, that is in the energy range most important for atmospheric and long baseline accelerator neutrinos, are large. These uncertainties do not play a significant role in the interpretation of existing data, however they could become a limiting factor in future studies that aim at a complete and accurate determination of the neutrino oscillation parameters. New data and theoretical understanding on nuclear effects and on the electromagnetic structure functions at low Q^2 and in the resonance production region are available, and can be valuable in reducing the present systematic uncertainties. The collaboration of physicists working in different subfields will be important to obtain the most from this available information. It is now also possible, with the facilities developed for long baseline beams, to produce high intensity and well controlled neutrino beams to measure the neutrino interaction properties with much better precision that what was done in the past. Several projects and ideas to fully exploit these possibilities are under active investigation. These topics have been the object of the first neutrino interaction (NUINT01) workshop.

Paolo Lipari

2002-07-14T23:59:59.000Z

440

Rise of Kp Total Cross Section and Universality  

E-Print Network [OSTI]

The increase of the measured hadronic total cross sections at the highest energies is empirically described by squared log of center-of-mass energy sqrt s as sigma(tot)= B (log s)2, consistent with the energy dependence of the Froissart unitarity bound. The coefficient B is argued to have a universal value, but this is not proved directly from QCD. In the previous tests of this universality, the p(pbar)p, pi p, and K p forward scatterings were analyzed independently and found to be consistent with B(pp) = B(pip) = B(Kp), although the determined value of B(Kp) had large uncertainty. In the present work, we have further analyzed forward Kp scattering to obtain a more exact value of B(Kp). Making use of continuous moment sum rules(CMSR) we have fully exploited the information of low-energy scattering data to predict the high-energy behavior of the amplitude hrough duality. The estimation of B(Kp) is improved remarkably, and our result strongly supports the universality of B.

Muneyuki Ishida; Vernon Barger

2011-06-24T23:59:59.000Z

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


441

R-Matrix Evaluation of 16O Neutron Cross Sections up to 6.3 MeV  

SciTech Connect (OSTI)

In this paper we describe an evaluation of {sup 16}O neutron cross sections in the resolved resonance region with the multilevel Reich-Moore R-matrix formalism. Resonance analyses were performed with the computer code SAMMY [LA98] which utilizes Bayes method, a generalized least squares technique. Over the years the nuclear community has developed a collection of evaluated nuclear data for applications in thermal, fast reactor, and fusion systems. However, typical neutron spectra in criticality safety applications are different from the spectra relevant to thermal, fast reactor, and fusion systems. In fact, the neutron spectra important for these non-reactor systems appear to peak in the epithermal energy range. Nuclear data play a major role in the calculation of the criticality safety margins for these systems. A thorough examination of how the present collection of nuclear data evaluations behaves in criticality safety calculations is needed. Many older evaluations will probably need to be revised, and new evaluations will be needed. Oxygen is an important element in criticality safety applications where oxides are present in significant abundance. The existing ENDF/B-VI.5 evaluation is expressed in terms of point-wise cross sections derived from the analysis of G. Hale [HA91]. Unfortunately such an evaluation is not directly useful for resonance analysis of data from samples in which oxygen is combined with other elements; for that purpose, Reich-Moore resonance parameters are needed. This paper addresses the task of providing those parameters. In the following sections we discuss the data, resonance analysis procedure, and results.

Sayer, R.O.

2000-08-21T23:59:59.000Z

442

Updates to the ORIGEN-S Cross-Section Libraries Using ENDF-VI, EAF-99, and FENDL-2.0  

SciTech Connect (OSTI)

The standard cross-section library for light-water reactor (LWR) analyses used by the ORIGEN-S depletion and decay code has been extensively updated. This work entailed the development of broad multigroup neutron cross sections for ORIGEN-S from several sources of pointwise continuous-energy cross-section evaluations, including the U.S. Evaluated Nuclear Data Files ENDF/B-VI Release 7, the Fusion Evaluated Nuclear Data Library FENDL-2.0, and the European Activation File EAF-99. The pointwise cross sections were collapsed to a three-group structure using a continuous-energy neutron flux spectrum representative of the typical neutronic conditions of typical LWR fuel and formatted for use by ORIGEN-S. In addition, the fission-product library has been expanded to include ENDF/B-VI fission yield data for 30 fissionable actinides. The processing codes and procedures are explained. Preliminary verification studies using the updated libraries were performed using the modules of the SCALE (Standardized Computer Analyses for Licensing Evaluation) system. Comparisons between the previous basic ORIGEN-S libraries and the updated libraries developed in this work are presented.

Murphy, B.D.

2004-11-04T23:59:59.000Z

443

Chapter 9, Metering Cross-Cutting Protocols: The Uniform Methods...  

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

9 - 21 6.5.1 High-Pressure Sensors These sensors are used for refrigerant systems, compressed air, water storage, or water pumping. The common unit of measure is...

444

Development and validation of a cross-section interface for PARCS Mathias Stlek, Christophe Demazire *  

E-Print Network [OSTI]

Development and validation of a cross-section interface for PARCS Mathias Stålek, Christophe with the development of a cross-section interface for PARCS and its validation. The inter- face is used to feed PARCS file and the SIMULATE-3 code is then used to read this library file. This interface allows a dependency

Demazière, Christophe

445

Green's function approximation from cross-correlations of 20100 Hz noise during a tropical storm  

E-Print Network [OSTI]

Green's function approximation from cross-correlations of 20­100 Hz noise during a tropical storm Approximation of Green's functions through cross-correlation of acoustic signals in the ocean, a method referred-bottom-reflected interarray hydrophone travel times. The extracted Green's function depends on the propagating noise

Gerstoft, Peter

446

Toward the Large-Eddy Simulation Over a Hypersonic Elliptical Cross-Section Cone  

E-Print Network [OSTI]

Toward the Large-Eddy Simulation Over a Hypersonic Elliptical Cross-Section Cone M. Pino Mart layer. Also, the computational setup for the large-eddy sim- ulation (LES) of a hypersonic elliptical cross-section cone is discussed in detail. Introduction The aerodynamic heating effects in hypersonic

Martín, Pino

447

Electric field in hard superconductors with arbitrary cross section and general critical current law  

E-Print Network [OSTI]

Electric field in hard superconductors with arbitrary cross section and general critical current-28871 Alcala´ de Henares, Spain Received 18 February 2004; accepted 11 March 2004 The induced electric field E x during magnetic flux entry in superconductors with arbitrary cross section and general

Majós, Antonio Badía

448

A Cross-Cultural VLSI Design Project David Harris Tayfun Akin  

E-Print Network [OSTI]

A Cross-Cultural VLSI Design Project David Harris Tayfun Akin David_Harris@hmc.edu Tayfun-Cultural VLSI Design Project David Harris Page 2 of 20 Outline o Introduction o Course Structure o Cross-Cultural VLSI Design Project David Harris Page 3 of 20 Introduction Engineering is increasingly done in large

Harris, David Money

449

Absolute angle-differential elastic cross sections for electron collisions with diacetylene  

SciTech Connect (OSTI)

We report measured and calculated differential elastic cross sections for collisions of low-energy electrons with diacetylene (1,3-butadiyne). A generally satisfactory agreement between theory and experiment has been found. The calculated cross sections provide interesting insight into the underlying resonant structure.

Allan, M.; Winstead, C.; McKoy, V. [Department of Chemistry, University of Fribourg, chemin du Musee 9, CH-1700 Fribourg (Switzerland); A. A. Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena, California 91125 (United States)

2011-06-15T23:59:59.000Z

450

Cross-shore sediment transport and the equilibrium morphology of mudflats under tidal currents  

E-Print Network [OSTI]

Cross-shore sediment transport and the equilibrium morphology of mudflats under tidal currents D of suspended sediment transport under cross-shore tidal currents on an intertidal mudflat. We employ a Lagrangian formulation to obtain periodic solutions for the sediment transport over idealized bathymetries

Hogg, Andrew

451

University of Newcastle upon Tyne Software Engineering Students' Cross-site Collaboration: An Experience  

E-Print Network [OSTI]

University of Newcastle upon Tyne COMPUTING SCIENCE Software Engineering Students' Cross-site their site's Software Engineering (SE) modules and provided strategic coupling of cross- site student groups allowed students to utilise the expertise from their site's Software Engineering (SE) modules and provided

Newcastle upon Tyne, University of

452

Erosion at Decommissioned Road-Stream Crossings: Case Studies from Three  

E-Print Network [OSTI]

the dominant process and incorporate any lessons learned into future projects. Sites were also intentionally53 Erosion at Decommissioned Road-Stream Crossings: Case Studies from Three Northern California-treatment erosion was observed for 41 decommissioned road stream crossings in three northern California watersheds

Standiford, Richard B.

453

Rank-r latent models for cross-covariance Jacob A. Wegelin  

E-Print Network [OSTI]

Rank-r latent models for cross-covariance Jacob A. Wegelin Thomas S. Richardson University of Gaussian rank-r latent models for cross-covariance. We show by construction that any variance-covariance matrix for the ob- served variables induced by rank-r reduced-rank regression can be induced by a rank

Washington at Seattle, University of

454

Nicole Hudson Sillerman Center Summer Internship at the Blue Cross Blue Shield of Massachusetts Foundation  

E-Print Network [OSTI]

Foundation Reflection Paper As a result of the generosity of the Sillerman Center for the Advancement of Philanthropy, I had the privilege of interning at The Blue Cross Blue Shield of Massachusetts Foundation (the Foundation) during the summer of 2011. The Foundation was founded in 2001 with an endowment from Blue Cross

Snider, Barry B.

455

A Model-driven Approach to Designing Cross-enterprise Business Processes  

E-Print Network [OSTI]

A Model-driven Approach to Designing Cross- enterprise Business Processes Bernhard Bauer1, Jörg P.p.mueller@siemens.com Abstract. Modeling and managing business processes that span multiple or- ganizations involves new for interoperability. In this paper, we present an approach to modeling cross-enterprise business processes based

Bauer, Bernhard

456

Adaptive design of cross-organizational business processes using a model-driven architecture  

E-Print Network [OSTI]

Adaptive design of cross-organizational business processes using a model-driven architecture, methodologies, methods, and infrastructures to support end-to-end modeling of cross-organizational business: First, we present a conceptual architecture for modeling collaborative business processes based

Bauer, Bernhard

457

Lake-level changes in central Patagonia (Argentina): crossing environmental thresholds  

E-Print Network [OSTI]

Lake-level changes in central Patagonia (Argentina): crossing environmental thresholds, Argentina 5 CONICET/Universidad Nacional de la Patagonia Austral, Ri´o Gallegos, Santa Cruz, Argentina-level changes in central Patagonia (Argentina): crossing environmental thresholds for Lateglacial and Holocene

Gilli, Adrian

458

A Database of 660 Peptide Ion Cross Sections: Use of Intrinsic Size Parameters for Bona Fide  

E-Print Network [OSTI]

A Database of 660 Peptide Ion Cross Sections: Use of Intrinsic Size Parameters for Bona Fide by tryptic digestion of 34 common proteins. Measured cross sections have been compiled into a database that contains peptide molecular weight and sequence information. The database is used to generate average

Clemmer, David E.

459

Alkaline membrane fuel cells with in-situ cross-linked ionomers Yongjun Leng a  

E-Print Network [OSTI]

optimization is needed for the commercialization of alkaline membrane fuel cell (AMFC) technologiesAlkaline membrane fuel cells with in-situ cross-linked ionomers Yongjun Leng a , Lizhu Wang b membrane fuel cell (AMFC) in-situ cross-linking ionomer net water transport coefficient A B S T R A C

460

Post-Self-Assembly Cross-Linking to Integrate Molecular Nanofibers with Copolymers in Oscillatory Hydrogels  

E-Print Network [OSTI]

Post-Self-Assembly Cross-Linking to Integrate Molecular Nanofibers with Copolymers in Oscillatory Information ABSTRACT: We study the use of post-self-assembly cross- linking to combine molecular nanofibers. The combination of supramolecular self-assembly with copolymerization offers a versatile and facile approach

Epstein, Irving R.

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


461

Unified Green's function retrieval by cross-correlation; connection with energy principles Roel Snieder,1,  

E-Print Network [OSTI]

Unified Green's function retrieval by cross-correlation; connection with energy principles Roel and observationally that the Green's function for acoustic and elastic waves can be retrieved by cross-correlating fluctuations recorded at two locations. We extend the concept of the extraction of the Green's function

Snieder, Roel

462

The Ramsauer model for the total cross sections of neutron nucleus scattering  

E-Print Network [OSTI]

Theoretical study of systematics of neutron scattering cross sections on various materials for neutron energies up to several hundred MeV are of practical importance. In this paper, we analysed the experimental neutron scattering total cross sections from 20MeV to 550MeV using Ramsauer model for nuclei ranging from Be to Pb.

R. S. Gowda; S. S. V. Suryanarayana; S. Ganesan

2005-06-02T23:59:59.000Z

463

Neutron cross sections of the isomeric nuclei KPrn, Sr81m,and Nbgam  

E-Print Network [OSTI]

Neutron cross sections of the isomeric nuclei KPrn, Sr81m,and Nbgam NJ. V. Petrov and A. I. Fiz. 23, 1186-1189 (June 1976) Inelastic neutron acceleration and retardation cross sections is on the order of tenths of a barn. For the Srs7mnucleus the mean energy given to a neutron in a single collision

Shlyakhter, Ilya

464

Neutron-induced cross sections of short-lived nuclei via the surrogate reaction method  

E-Print Network [OSTI]

Neutron-induced cross sections of short-lived nuclei via the surrogate reaction method G. Boutoux1 Abstract. The measurement of neutron-induced cross sections of short-lived nuclei is extremely difficult for a neutron-induced measurement. We have successfully used the surrogate reaction method to extract neutron

Boyer, Edmond

465

Semi-blind channel estimation schemes based on a cooperative form of the cross relation criterion  

E-Print Network [OSTI]

Semi-blind channel estimation schemes based on a cooperative form of the cross relation criterion on the cross-relation criterion that has been extensively studied in the (semi-) blind literature. As shown. In a wireless environment, as in cooperative communications, semi-blind techniques which combine a blind

Rontogiannis, Athanasios A.

466

7003A-30, Session 5 Zero-crossing detection algorithm for arrays of optical  

E-Print Network [OSTI]

7003A-30, Session 5 Zero-crossing detection algorithm for arrays of optical spatial fi ltering-crossing detection algorithm for arrays of compact low-cost optical sensors for measuring e.g. minor fl uctuations-to-noise ratio, and delivers a "real time" output (0-1 kHz). The sensors use optical spatial-fi ltering

467

PHYSICAL REVIEW C VOLUME 28, NUMBER 6 JUNE 1981 Direct capture cross sections at low energy  

E-Print Network [OSTI]

solar nuclear reactions due to the unexpectedly low neutrino flux measured by Davis et al. ' One cross section for this reaction. ' Rolfs et al.' have remeasured the low-energy S factor (relatedPHYSICAL REVIEW C VOLUME 28, NUMBER 6 JUNE 1981 Direct capture cross sections at low energy R. D

Williams, Roy

468

Scattering and reaction cross-sections measured at SPES I Results compiled by  

E-Print Network [OSTI]

for low energy nuclear physics measurements i.e. : diffe- rential cross-section (a = deT/dQ) versus This article gives all the differential cross-sections for two body reactions at intermediate energy measured (Saclay) in 1971 in order to investigate intermediate energy two body reactions. This magne- tic

Boyer, Edmond

469

Micro-and Macrorheological Properties of Isotropically Cross-Linked Actin Networks  

E-Print Network [OSTI]

Micro- and Macrorheological Properties of Isotropically Cross-Linked Actin Networks Yuxia Luan. Thus, the micro- and macromechanical properties of isotropically cross-linked in vitro actin networks-linking molecules. The microstructure of the resulting networks mainly determines their mechanical properties

Bausch, Andreas

470

PAN@FIRE 2013: Overview of the Cross-Language !ndian News  

E-Print Network [OSTI]

PAN@FIRE 2013: Overview of the Cross-Language !ndian News Story Search (CL!NSS) Track Parth Gupta1 , Paul Clough2 , Paolo Rosso1 Mark Stevenson2 , and Rafael E. Banchs3 1 NLE Lab, Universitat Politècnica and abundant language resource. This edition of PAN@FIRE task, cross-language !ndia news story search (CL

Rosso, Paolo

471

Context-Aware Interaction Models in Cross-Organizational Processes Florian Skopik, Daniel Schall, Schahram Dustdar  

E-Print Network [OSTI]

Context-Aware Interaction Models in Cross-Organizational Processes Florian Skopik, Daniel Schall for external constraints such as availability of material, delivery dates, and efficiency of humans- volvement, cross-organizational process models, trust I. INTRODUCTION Small and medium-sized companies

Dustdar, Schahram

472

Efficiency in the international insurance industry: A cross-country comparison  

E-Print Network [OSTI]

efficiency, whereas the Philippines is the least efficient. Regarding organizational form, the resultsEfficiency in the international insurance industry: A cross-country comparison Martin Eling und¨AT ULM #12;Efficiency in the international insurance industry: A cross-country comparison Martin Elinga

Ulm, Universität

473

Design of Multilayered Substrate-Integrated Waveguide Cross-Slot Couplers  

E-Print Network [OSTI]

Design of Multilayered Substrate-Integrated Waveguide Cross-Slot Couplers Vladimir A. Labay1 , Jens directional coupler designs in substrate-integrated waveguide (SIW) technology. Interface ports are modeled. Several Ka-band double- or triple-layered cross-guide coupler designs are presented using an Ansoft's HFSS

Bornemann, Jens

474

Blackland's flood warning system protects soldiers  

E-Print Network [OSTI]

the No. 1 reason for installing the FAST system was ?to protect soldiers by alerting them of dangerous flood conditions.? Equipment and personnel had been lost at low water crossings during storms, he said. Wolfe said the sensors, which constantly... said they also hope to use real-time stream level and weather data to develop a flood prediction model to forecast the likelihood of flooding across Fort Hood. Blackland?s f lood warning system protects soldiers ...

Wythe, Kathy

2008-01-01T23:59:59.000Z

475

Triply Differential Jet Cross Sections for Hadron Collisions at Order alpha_s^3 in QCD  

E-Print Network [OSTI]

We discuss cross sections for hadron + hadron to 2 jets + anything in which three jet variables are measured. Such cross sections are useful especially for determining parton distributions. We define a new cross section d sigma/dX_A dX_B d eta_* for which the perturbation theory is nicely behaved even in the kinematic regime where the parton distributions are probed at large momentum fractions. The cross section d\\sigma/dE_{T1}\\, d\\eta_1\\, d\\eta_2, which has been used in the past, is not so well behaved in this region. We calculate these cross sections at order $\\alpha_s^3$ in QCD.

Stephen D. Ellis; Davison E. Soper

1994-12-22T23:59:59.000Z

476

Current and Future Carbon Budgets of Tropical Rain Forest: A Cross Scale Analysis. Final Report  

SciTech Connect (OSTI)

The goal of this project was to make a first assessment of the major carbon stocks and fluxes and their climatic determinants in a lowland neotropical rain forest, the La Selva Biological Station, Costa Rica. Our research design was based on the concurrent use of several of the best available approaches, so that data could be cross-validated. A major focus of our effort was to combine meteorological studies of whole-forest carbon exchange (eddy flux), with parallel independent measurements of key components of the forest carbon budget. The eddy flux system operated from February 1998 to February 2001. To obtain field data that could be scaled up to the landscape level, we monitored carbon stocks, net primary productivity components including tree growth and mortality, litterfall, woody debris production, root biomass, and soil respiration in a series of replicated plots stratified across the major environmental gradients of the forest. A second major focus of this project was on the stocks and changes of carbon in the soil. We used isotope studies and intensive monitoring to investigate soil organic stocks and the climate-driven variation of soil respiration down the soil profile, in a set of six 4m deep soil shafts stratified across the landscape. We measured short term tree growth, climate responses of sap flow, and phenology in a suite of ten canopy trees to develop individual models of tree growth to daytime weather variables.

Oberbauer, S. F.

2004-01-16T23:59:59.000Z

477

Automated NNLL+NLO Resummation for Jet-Veto Cross Sections  

E-Print Network [OSTI]

In electroweak-boson production processes with a jet veto, higher-order corrections are enhanced by logarithms of the veto scale over the invariant mass of the boson system. In this paper, we resum these Sudakov logarithms at next-to-next-to-leading logarithmic (NNLL) accuracy and match our predictions to next-to-leading order (NLO) fixed-order results. We perform the calculation in an automated way, for arbitrary electroweak final states and in the presence of kinematic cuts on the leptons produced in the decays of the electroweak bosons. The resummation is based on a factorization theorem for the cross sections into hard functions, which encode the virtual corrections to the boson production process, and beam functions, which describe the low-p_T emissions collinear to the beams. The one-loop hard functions for arbitrary processes are calculated using the MadGraph5_aMC@NLO framework, while the beam functions are process independent. We perform the resummation for a variety of processes, in particular for W+W- pair production followed by leptonic decays of the W bosons.

Thomas Becher; Rikkert Frederix; Matthias Neubert; Lorena Rothen

2014-12-29T23:59:59.000Z

478

The improvement of the method of equivalent cross section in HTR  

SciTech Connect (OSTI)

The Method of Equivalence Cross-Sections (MECS) is a combined transport-diffusion method. By appropriately adjusting the diffusion coefficient of homogenized absorber region, the diffusion theory could yield satisfactory results for the full core model with strong neutron absorber material, for example the control rod in High temperature gas cooled reactor (HTR). Original implementation of MECS based on 1-D cell transport model has some limitation on accuracy and applicability, a new implementation of MECS based on 2-D transport model are proposed and tested in this paper. This improvement can extend the MECS to the calculation of twin small absorber ball system which have a non-circular boring in graphite reflector and different radial position. A least-square algorithm for the calculation of equivalent diffusion coefficient is adopted, and special treatment for diffusion coefficient for higher energy group is proposed in the case that absorber is absent. Numerical results to adopt MECS into control rod calculation in HTR are encouraging. However, there are some problems left. (authors)

Guo, J.; Li, F. [Inst. of Nuclear and New Energy Technology, Tsinghua Univ., Beijing 100084 (China)

2012-07-01T23:59:59.000Z

479

LWR First Recycle of TRU with Thorium Oxide for Transmutation and Cross Sections  

SciTech Connect (OSTI)

Thorium has been considered as an option to uranium-based fuel, based on considerations of resource utilization (thorium is approximately three times more plentiful than uranium) and as a result of concerns about proliferation and waste management (e.g. reduced production of plutonium, etc.). Since the average composition of natural Thorium is dominated (100%) by the fertile isotope Th-232, Thorium is only useful as a resource for breeding new fissile materials, in this case U-233. Consequently a certain amount of fissile material must be present at the start-up of the reactor in order to guarantee its operation. The thorium fuel can be used in both once-through and recycle options, and in both fast and thermal spectrum systems. The present study has been aimed by the necessity of investigating the option of using reprocessed plutonium/TRU, from a once-through reference LEU scenario (50 GWd/ tIHM), mixed with natural thorium and the need of collect data (mass fractions, cross-sections etc.) for this particular fuel cycle scenario. As previously pointed out, the fissile plutonium is needed to guarantee the operation of the reactor. Four different scenarios have been considered: • Thorium – recycled Plutonium; • Thorium – recycled Plutonium/Neptunium; • Thorium – recycled Plutonium/Neptunium/Americium; • Thorium – recycled Transuranic. The calculations have been performed with SCALE6.1-TRITON.

Andrea Alfonsi; Gilles Youinou

2012-07-01T23:59:59.000Z

480

LWR First Recycle of TRU with Thorium Oxide for Transmutation and Cross Sections  

SciTech Connect (OSTI)

Thorium has been considered as an option to uranium-based fuel, based on considerations of resource utilization (thorium is approximately three times more plentiful than uranium) and as a result of concerns about proliferation and waste management (e.g. reduced production of plutonium, etc.). Since the average composition of natural Thorium is dominated (100%) by the fertile isotope Th-232, Thorium is only useful as a resource for breeding new fissile materials, in this case U-233. Consequently a certain amount of fissile material must be present at the start-up of the reactor in order to guarantee its operation. The thorium fuel can be used in both once-through and recycle options, and in both fast and thermal spectrum systems. The present study has been aimed by the necessity of investigating the option of using reprocessed plutonium/TRU, from a once-through reference LEU scenario (50 GWd/ tIHM), mixed with natural thorium and the need of collect data (mass fractions, cross-sections etc.) for this particular fuel cycle scenario. As previously pointed out, the fissile plutonium is needed to guarantee the operation of the reactor. Four different scenarios have been considered: • Thorium – recycled Plutonium; • Thorium – recycled Plutonium/Neptunium; • Thorium – recycled Plutonium/Neptunium/Americium; • Thorium – recycled Transuranic. The calculations have been performed with SCALE6.1-TRITON.

Andrea Alfonsi; Gilles Youinou; Sonat Sen

2013-02-01T23:59:59.000Z

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


481

Feedback damper system for quadrupole oscillations after transition at RHIC.  

SciTech Connect (OSTI)

The heavy ion beam at RHIC undergoes strong quadrupole oscillations just after it crosses transition, which leads to an increase in bunch length making rebucketing less effective. A feedback system was built to damp these quadrupole oscillations and in this paper the characteristics of the system and the results obtained are presented and discussed.

Abreu,N.; Blaskiewicz, M.; Brennan, J.M.; Schultheiss, C.

2008-06-23T23:59:59.000Z

482

Comparing systemic risk in European government bonds and national indices  

E-Print Network [OSTI]

It has been shown, that the systemic risk contained in financial markets can be indicated by the change of cross-correlation between different indices and stocks. This change is tracked by using principle component analysis (PCA). We use this technique to investigate the systemic risk contained in European economy by comparing government long term bonds and indices.

Jurczyk, Jan; Morgenstern, Ingo

2015-01-01T23:59:59.000Z

483

Numerical simulation of narrow bipolar electromagnetic pulses generated by thunderstorm discharges  

SciTech Connect (OSTI)

Using the concept of avalanche relativistic runaway electrons (REs), we perform numerical simulations of compact intracloud discharge (CID) as a generator of powerful natural electromagnetic pulses (EMPs) in the HF-VHF range, called narrow bipolar pulses (NBPs). For several values of the field overvoltage and altitude at which the discharge develops, the numbers of seed electrons initiating the avalanche are evaluated, with which the calculated EMP characteristics are consistent with the measured NBP parameters. We note shortcomings in the hypothesis assuming participation of cosmic ray air showers in avalanche initiation. The discharge capable of generating NBPs produces REs in numbers close to those in the source of terrestrial {gamma}-ray flashes (TGFs), which can be an argument in favor of a unified NBP and TGF source.

Bochkov, E. I.; Babich, L. P., E-mail: babich@elph.vniief.ru; Kutsyk, I. M. [All-Russia Research Institute of Experimental Physics, Russian Federal Nuclear Center (Russian Federation)] [All-Russia Research Institute of Experimental Physics, Russian Federal Nuclear Center (Russian Federation)

2013-07-15T23:59:59.000Z

484

Preprints, 5th Australian Severe Thunderstorm Conference Bureau of Meteorology, 29 July -2 August, 1996  

E-Print Network [OSTI]

become a weapon wielded by a poor local manager, intoxicated with the power of position, to bash favorite-products of the necessary task of verification, but they are real enough and can have the effect of making many forecasters

Doswell III, Charles A.

485

A microphysical and dynamical comparison of the observed and simulated structure of a Florida area thunderstorm  

E-Print Network [OSTI]

, but often overestimated the magnitude of the horizontal components and underestimated those of the vertical components. Despite possessing weaker updrafts than found in the observed storm, the simulation produced stronger, deeper cores with inflated...

Chadwick, Virginia Alyson

2003-01-01T23:59:59.000Z

486

Radar-sferics investigation of a theoretical mechanism of thunderstorm rain electrification  

E-Print Network [OSTI]

fain vss report~4 by che 0, g. Qsechsr Bu;~ to be 6 od o'. :"'-";st of gchuiouburg, Tag'. hs storm top, as deserved by radsr?- rose'. sd tm sn. ctae. o~ oscar . 4 ac about 1555 csx (53, 000 fc) a 4 tl@i o~&. sr -". -. r 1500 CST (46, 0 5 ft...

Borgers, Wayne Fitzpatrick

1962-01-01T23:59:59.000Z

487

NWS Product Definition Document (PDD) for: Refinement of SPC Experimental Enhanced Resolution Thunderstorm Outlook  

E-Print Network [OSTI]

NWS Product Definition Document (PDD) for: Refinement of SPC Experimental Enhanced Resolution replaces an existing PDD, whose evaluation period expired on 15 February 2008, and revises the current SPC will also evaluate changes in the distribution of SPC forecaster workload and the ability to maintain

488

An investigation of the trajectories of rotating thunderstorms: a numerical experiment.  

E-Print Network [OSTI]

embedded in a strong current. Ths effect of 7 on the e storm speed can be seen in Fig, 2. Another effect of V on the storm motion is shown in Pigs e 4, 5 and. 6. Hots that in these examples an oscillation occurs in the 25 N 200 0= 5km ~ Cc= 0. 1 4... W IND CLL TYR LFK 0245 pDLF ESP 243 OCOT RND 0 OBRX SKF pVCT 0 ACE 255 0 NIR PSX HO 02 EFD \\ I I LRD 0252 CRP 25) 0 NQ I ppN 5 P i?gr 10. The areal envelope of 4-hr trajectories of T~e I storIlls ~ than are actually found...

Veazey, Don Russell

1968-01-01T23:59:59.000Z

489

A lightning summary and decision model for thunderstorm prediction at Whiteman Air Force Base, Missouri  

E-Print Network [OSTI]

A cloud-to-ground lightning summary was developed for a 139xl85 kilometer area centered at Whiteman Air Force Base. Spatial and temporal patterns, and first stroke peak currents were analyzed from 1989-1995. Stability indices were examined...

Bass, Randall Gerald

1996-01-01T23:59:59.000Z

490

Preprints, 5th Australian Severe Thunderstorm Conference Bureau of Meteorology, 29 July -2 August, 1996  

E-Print Network [OSTI]

process. In this age when numeri- cal weather prediction (NWP) models and their associated statistical, 1996 Avoca Beach, New South Wales, Australia Science, Numerical Models, and Forecasting An Overview: numerical modeling has come to the point where it too must consider revolutionary change. New numerical

Doswell III, Charles A.

491

Measured severe wind gust climatology of thunderstorms for the contiguous United States, 2003-2009  

E-Print Network [OSTI]

-2009 Bryan T. Smith 1 , Andrew C. Winters 2, 3 , Corey M. Mead 1 , Andrew R. Dean 1 , and Tomas E. Castellanos 4 1 NOAA/NWS/NCEP/Storm Prediction Center, Norman, Oklahoma 2 National Weather Center Research

492

Search for possible relationship between volcanic ash particles and thunderstorm lightning activity  

E-Print Network [OSTI]

, with up to three separate layers of enhanced ozone and low humidity. Strong evidence for mixing cyclone, the warm conveyor belt [Browning, 1990], has recently been argued to be one of the main

Jánosi, Imre M.

493

Cloud-resolving simulations of mercury scavenging and deposition in thunderstorms  

E-Print Network [OSTI]

Technol. , 35, 863–873, 2001. Halland, J. J. , Fuelberg, H.1987; Cotton et al. , 1995; Halland et al. , 2009). In theBarth et al. , 2007; Halland et al. , 2009). Regional

Nair, U. S; Wu, Y.; Holmes, C. D; Ter Schure, A.; Kallos, G.; Walters, J. T

2013-01-01T23:59:59.000Z

494

Thunderstorm characteristics displayed with three-dimensional digital radar data and digital goes infrared data  

E-Print Network [OSTI]

of flash- flooding and severe local storm events (tornadoes, large hail, or strong surface winds) could be a factor in reducing the frequency of storm-related deaths and minimizing property damage, an effort to de- velop more accurate forecasting... researchers who analyzed severe local storms by the CAZM technique. Several fea- tures, such as a 1ow-level bounded weak echo region (BWER) and the de- crease with time of upper-level reflectivity, were found to correlate with severe weather events...

McAnelly, Ray Lewis

1980-01-01T23:59:59.000Z

495

Lightning charge moment changes in U.S. High Plains thunderstorms  

E-Print Network [OSTI]

been measured using sub-ELF ($1­50 Hz) Schumann resonance wave- forms [Burke and Jones, 1996; Huang et

Cummer, Steven A.

496

Are Increases in Thunderstorm Activity in Southeast China Related to Air Pollution?  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAbout theOFFICEAmesApplication2 (CRAC 2SSRL27 Users'weeklyJuneAre

497

Particle detection systems and methods  

DOE Patents [OSTI]

Techniques, apparatus and systems for detecting particles such as muons and neutrons. In one implementation, a particle detection system employs a plurality of drift cells, which can be for example sealed gas-filled drift tubes, arranged on sides of a volume to be scanned to track incoming and outgoing charged particles, such as cosmic ray-produced muons. The drift cells can include a neutron sensitive medium to enable concurrent counting of neutrons. The system can selectively detect devices or materials, such as iron, lead, gold, uranium, plutonium, and/or tungsten, occupying the volume from multiple scattering of the charged particles passing through the volume and can concurrently detect any unshielded neutron sources occupying the volume from neutrons emitted therefrom. If necessary, the drift cells can be used to also detect gamma rays. The system can be employed to inspect occupied vehicles at border crossings for nuclear threat objects.

Morris, Christopher L.; Makela, Mark F.

2010-05-11T23:59:59.000Z

498

E-Print Network 3.0 - aquifer guarani system Sample Search Results  

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

times of years to tens of years. Conse- quently, these aquifers are fragile systems... of rainwater d18 O Fig. 5. Cross-section of limestone aquifers of northern Puerto Rico. The...

499

E-Print Network 3.0 - aquifer system estimacion Sample Search...  

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

times of years to tens of years. Conse- quently, these aquifers are fragile systems... of rainwater d18 O Fig. 5. Cross-section of limestone aquifers of northern Puerto Rico. The...

500

E-Print Network 3.0 - aquifer system brazil Sample Search Results  

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

times of years to tens of years. Conse- quently, these aquifers are fragile systems... of rainwater d18 O Fig. 5. Cross-section of limestone aquifers of northern Puerto Rico. The...