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1

Short-period variation of cosmic-ray intensity observed in the stratosphere  

Science Journals Connector (OSTI)

To investigate the variation of the cosmic-ray intensity in the Earth atmosphere, stratospheric balloon soundings are performed weekly at Campinas (Brazil...2 and 173 g/cm2. Apparently these oscillations are not ...

N. A. Van Bui; I. M. Martin; A. Turtelli jr.; Yu. I. Stozhkov…

2

ARM - Field Campaign - Water Cycle Pilot Study Intensive Observations  

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

govCampaignsWater Cycle Pilot Study Intensive Observations govCampaignsWater Cycle Pilot Study Intensive Observations Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Water Cycle Pilot Study Intensive Observations 2002.04.01 - 2002.06.30 Lead Scientist : Marvin Wesely For data sets, see below. Description The U.S. DOE Water Cycle Pilot Study (WCPS) is a 3-year feasibility investigation focused on accurately evaluating the water cycle components and using stable isotopes as an effective tool in doing so. The study area is primarily the Whitewater subbasin in the Walnut River Watershed in southeastern Kansas. Two intensive observations periods are planned, this first one in April to June 2002 and a second currently scheduled for December 2002 to February 2003. Observations will be made of precipitation

3

Observable coherence theory for statistically periodic fields Brynmor J. Davis*  

E-Print Network [OSTI]

Observable coherence theory for statistically periodic fields Brynmor J. Davis* The Beckman processes is used to develop classical coherence theory for the measurement of statistically periodicRevA.76.043843 PACS number s : 42.25.Kb, 42.60.Mi, 42.65.Re I. INTRODUCTION Coherence theory 1

Bhargava, Rohit

4

Working Group Reports Summary of Single-Column Model Intensive Observation  

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

Working Group Reports Summary of Single-Column Model Intensive Observation Period Workshop at Annual Atmospheric Radiation Measurement Science Team Meeting D. A. Randall Department of Atmospheric Science Colorado State University Fort Collins, Colorado R. T. Cederwall Lawrence Livermore National Laboratory Livermore, California * Study previous observation simulation system experiments (OSSEs) (i.e., Bill Frank, Pennsylvania State University [PSU]) and conduct OSSEs as necessary to evaluate data network. * Implement additional "boundary" facilities and investigate possible interim capabilities for upcoming SCM IOPs. * Improve resolution of wind profiles observed in lowest 1 km, using data sources such as towers of opportunity, doppler sodar, and doppler radar.

5

Observations of long period earthquakes accompanying hydraulic fracturing  

SciTech Connect (OSTI)

Waveforms of most seismic events accompanying hydraulic fracturing have been reported to contain clear P and S waves and have fault plane solutions consistent with shear displacement across a fault. This observation is surprising since classical hydraulic fracturing theory predicts the creation of a tensile opening of a cavity in response to fluid pressure. Very small long period events, similar to long period earthquakes observed at volcanoes, were found to occur during four hydraulic fracturing experiments carried out at Fenton Hill, New Mexico. Since the long period earthquakes occur in the same region as the shear type events, it is concluded that the unusual character of the long period earthquake waveforms is due to a source effect and not a path effect. The occurrence of long period earthquakes during hydraulic fracturing could indicate tensile fracturing. Many waveforms of these events are identical, which implies that these events represent repeated activation of a given source. A proposed source for these long period events is the sudden opening of a channel that connects two cracks filled with fluid at different pressures. The sizes of the two cracks differ, which causes two or more peaks to appear in the spectra, each peak being associated with one physical dimension of each crack. From the frequencies at which spectral peaks occur, crack lengths are estimated to be between 3 and 20m.

Bame, D.; Fehler, M.

1986-02-01T23:59:59.000Z

6

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

Science Journals Connector (OSTI)

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

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

1989-01-01T23:59:59.000Z

7

Experimentally observed field–gas interaction in intense optical lattices  

SciTech Connect (OSTI)

When a gas perturbed by a laser interference pattern, an optical lattice, exhibits a periodic modulation of its refractive index, strong Bragg diffraction of the perturbing light can occur. This scattering reduces the field's ability to further manipulate the gas. Experimental observations of Bragg scattering, evidence of a two-way coupling, are compared to the evolution of the light fields calculated by solutions to the wave equation. Comparison indicates momentum deposition as a prime contributor to the shape of the scattering function vs. lattice velocity, a rationale further supported through additional direct simulation Monte Carlo simulation.

Graul, Jacob S.; Cornella, Barry M.; Ketsdever, Andrew D.; Lilly, Taylor C. [Department of Mechanical and Aerospace Engineering, University of Colorado Colorado Springs, Colorado Springs, Colorado 80918 (United States)] [Department of Mechanical and Aerospace Engineering, University of Colorado Colorado Springs, Colorado Springs, Colorado 80918 (United States); Shneider, Mikhail N. [Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544 (United States)] [Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544 (United States)

2013-12-09T23:59:59.000Z

8

SOLAR H{alpha} OSCILLATIONS FROM INTENSITY AND DOPPLER OBSERVATIONS  

SciTech Connect (OSTI)

Chromospheric wave activity around flares and filaments has been a research focus for years, and could provide indirect measurements of local conditions that are not otherwise accessible. One interesting observed phenomenon is oscillations in filaments, activated by distant flares and the large-scale waves they produce. Characteristics of these oscillations, such as periods, amplitudes, and lifetimes, can provide unique information about the filament. We measure oscillation properties in flares and filaments from H{alpha} chromospheric data using a new method that provides important spatial and frequency content of the dynamics. We apply the method to two flare events where filaments are observed to oscillate and determine their properties. We find strong oscillatory signal in flaring active regions in the chromosphere over a range of frequencies. Two filaments are found to oscillate without any detectable chromospheric wave acting as an activation mechanism. We find that filaments oscillate with periods of tens of minutes, but variations are significant at small spatial scales along the filamentary region. The results suggest that there is a frequency dependence of the oscillation amplitude, as well as a spatial dependence along single filaments that is more difficult to quantify. It also appears that the strength of the oscillations does not necessarily depend on the strength of the trigger, although there are other possible effects that make this conclusion preliminary. Applications of this technique to other events and different data sets will provide important new insights into the local energy densities and magnetic fields associated with dynamic chromospheric structures.

Jackiewicz, Jason [New Mexico State University, Department of Astronomy, P.O. Box 30001, MSC 4500, Las Cruces, NM 88003 (United States)] [New Mexico State University, Department of Astronomy, P.O. Box 30001, MSC 4500, Las Cruces, NM 88003 (United States); Balasubramaniam, K. S., E-mail: jasonj@nmsu.edu [Space Vehicles Directorate, Air Force Research Laboratory, Kirtland AFB, NM 87114 (United States)

2013-03-01T23:59:59.000Z

9

Retrieval of Intensive Aerosol Properties from MFRSR observations: Partly Cloudy Cases  

SciTech Connect (OSTI)

An approach for the obtaining column intensive aerosol properties, namely the single scattering albedo (SSA) and asymmetry parameter (ASP), from the Multi-Filter Rotating Shadowband Radiometer (MFRSR) spectral observations under partly cloudy conditions is described. The approach involves the MFRSR-based aerosol retrieval for clear-sky periods and an interpolation of the retrieved column aerosol properties for cloudy periods. The observed weak diurnal variability of SSA and ASP at the surface and the close association of the surface intensive aerosol properties with their column counterparts form the basis of such interpolation. The approach is evaluated by calculating the corresponding clear-sky total, direct and diffuse fluxes at five wavelengths (415, 500, 615, 673 and 870 nm) and compare them with the observed fluxes. The aerosol properties provided by this approach are applied for (i) an examination of the statistical relationship between spectral (visible spectral range) and broadband values of the total normalized cloud radiative forcing and (ii) an estimation of the fractional sky cover. Data collected during 13 days with single-layer cumulus clouds observed at U.S. Department of Energy Atmospheric Radiation Measurement (ARM) Climate Research Facility (ACRF) Southern Great Plains (SGP) site during summer 2007 are applied to illustrate the performance and application of this approach.

Kassianov, Evgueni I.; Barnard, James C.; Berg, Larry K.; Flynn, Connor J.; Long, Charles N.

2010-09-30T23:59:59.000Z

10

ISSUANCE 2015-01-26: Energy Conservation Program: Energy Conservation Standards for High-Intensity Lamps, Notice to Reopen Comment Period  

Broader source: Energy.gov [DOE]

Energy Conservation Program: Energy Conservation Standards for High-Intensity Lamps, Notice to Reopen Comment Period

11

Modeling the time and energy behavior of the GCR intensity in the periods of low activity around the last three solar minima  

E-Print Network [OSTI]

Using the simple model for the description of the GCR modulation in the heliosphere and the sets of parameters discussed in the accompanying paper we model some features of the time and energy behavior of the GCR intensity near the Earth observed during periods of low solar activity around three last solar minima. In order to understand the mechanisms underlying these features in the GCR behavior, we use the suggested earlier decomposition of the calculated intensity into the partial intensities corresponding to the main processes (diffusion, adiabatic losses, convection and drifts).

Krainev, M B; Kalinin, M S; Svirzhevskaya, A K; Svirzhevsky, N S

2014-01-01T23:59:59.000Z

12

The effect of local geologic conditions on observed seismic intensities  

E-Print Network [OSTI]

. O I. S 7. 0 5. ~. 0 4. 5-S 0 3~0 1. 5-3. 0 2, 0 5 0 12 13 22 li 22 1S 39 $6 55 5$ 49 67 14 12 4$ 8 7 12 $2 39 89 0 7 1 47 13 64 42 172 64 23$ SO 108 17 54 121 281 3 0 1 1$ d 4 13 16 10 20 28 29 5D 36 41 56 $7 52 il 24 $2 91 59... \\ I I I I V1I' euv osCoanvm VVI V I /O V /Q FEBRUARY EB, 1BB1 BAIP E FIGURE 5. Isoseismal contours of M Intensity for the February 25, 1981 on a Gul f of Corinth area map. 33 VI VI I V STV N SIAIICH i. 1081 2lo E FIGURE 6...

Moran, David Rick

2012-06-07T23:59:59.000Z

13

The periodic variations of a white-light flare observed with ULTRACAM  

E-Print Network [OSTI]

High time resolution observations of a white--light flare on the active star EQ PegB show evidence of intensity variations with a period of approximately 10 s. The period drifts to longer values during the decay phase of the flare. If the oscillation is interpreted as an impulsively--excited, standing--acoustic wave in a flare loop, the period implies a loop length of 1.7 Mm and 3.4 Mm for the case of the fundamental mode and the second harmonic, respectively. However, the small loop lengths imply a very high modulation depth making the acoustic interpretation unlikely. A more realistic interpretation may be that of a fast--MHD wave, with the modulation of the emission being due to the magnetic field. Alternatively, the variations could be due to a series of reconnection events. The periodic signature may then arise as a result of the lateral separation of individual flare loops or current sheets with oscillatory dynamics (i.e. periodic reconnection).

M. Mathioudakis; D. S. Bloomfield; D. B. Jess; V. S. Dhillon; T. R. Marsh

2006-05-08T23:59:59.000Z

14

Observation of objects under intense plasma background illumination  

SciTech Connect (OSTI)

Experiments on the observation of a brightness-amplified image of an object through a masking arc discharge are presented. The copper-vapor laser active medium was used as an image brightness amplifier. It is shown that the image quality does not worsen under plasma background illumination.

Buzhinsky, R. O.; Savransky, V. V. [Russian Academy of Sciences, Natural Science Center, Prokhorov Institute of General Physics (Russian Federation); Zemskov, K. I.; Isaev, A. A. [Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation); Buzhinsky, O. I. [Troitsk Institute for Innovation and Fusion Research (Russian Federation)

2010-12-15T23:59:59.000Z

15

Ring current intensity estimated from low-altitude proton observations  

E-Print Network [OSTI]

. Oksavik Department of Physics, University of Bergen, Bergen, Norway D. S. Evans NOAA Space Environment as a proxy for estimating the energy injection rate into the ring current (RC) due to energetic protons. The injection rate Q(t) is not based upon solar wind parameters but directly on the observed proton

Bergen, Universitetet i

16

On the GCR intensity and the inversion of the heliospheric magnetic field during the periods of the high solar activity  

E-Print Network [OSTI]

We consider the long-term behavior of the solar and heliospheric parameters and the GCR intensity in the periods of high solar activity and the inversions of heliospheric magnetic field (HMF). The classification of the HMF polarity structures and the meaning of the HMF inversion are discussed. The procedure is considered how to use the known HMF polarity distribution for the GCR intensity modeling during the periods of high solar activity. We also briefly discuss the development and the nearest future of the sunspot activity and the GCR intensity in the current unusual solar cycle 24.

Krainev, M B

2014-01-01T23:59:59.000Z

17

Surface Spectral Albedo Intensive Operational Period at the ARM SGP Site in august 2002: Results, Analysis, and Future Plans  

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

Spectral Albedo Intensive Operational Period Spectral Albedo Intensive Operational Period at the ARM SGP Site in August 2002: Results, Analysis, and Future Plans A. P. Trishchenko and Y. Luo Canada Centre for Remote Sensing Ottawa, Ontario, Canada M. C. Cribb and Z. Li University of Maryland College Park, Maryland K. Hamm University of Oklahoma Norman, Oklahoma Introduction A surface spectral albedo Intensive Operational Period (IOP) at the Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP) site was conducted during August 14-19, 2002, to meet the ARM Program need in a detailed knowledge of surface boundary conditions for atmospheric radiation studies. We measured surface spectral albedos/reflectances for several representative surface types and made a survey of landcover types over an area of approximately 10 km x 10 km centered

18

RApid Temporal Survey - RATS II: Followup observations of 4 newly discovered short period variables  

E-Print Network [OSTI]

The RApid Temporal Survey (RATS) is a survey to detect objects whose optical intensity varies on timescales of less than ~70 min. In our pilot dataset taken with the INT and the Wide Field Camera in Nov 2003 we discovered nearly 50 new variable objects. Many of these varied on timescales much longer than 1 hr. However, only 4 objects showed a modulation on a timescale of 1 hour or less. This paper presents followup optical photometry and spectroscopy of these 4 objects. We find that RAT J0455+1305 is a pulsating (on a period of 374 sec) subdwarf B (sdB) star of the EC 14026 type. We have modelled its spectrum and determine Teff = 29,200+/- 1900K and log g = 5.2+/-0.3 which locates it on the cool edge of the EC 14026 instability strip. It has a modulation amplitude which is one of the highest of any known EC 14026 star. Based on their spectra, photometric variability and their infra-red colours, we find that RAT J0449+1756, RAT J0455+1254 and RAT J0807+1510 are likely to be SX Phe stars - dwarf Delta Sct stars. Our results show that our observing strategy is a good method for finding rare pulsating stars.

Gavin Ramsay; Ralf Napiwotzki; Pasi Hakala; Harry Lehto

2006-06-26T23:59:59.000Z

19

Intensity-Modulated Radiotherapy Optimization in a Quasi-Periodically Deforming Patient Model  

SciTech Connect (OSTI)

Purpose: To present the implementation of a probability-based, four-dimensional (4D) intensity-modulated radiotherapy (IMRT) planning approach that explicitly optimizes the accumulated dose to moving tissue, estimated using the patient's probability density function (pdf) of respiratory motion. This is termed 'optimization in tissue's-eye-view'. Methods and Materials: The method incorporates 4D Monte Carlo dose calculation in multiple geometries of a respiratory-correlated CT dataset. The instance doses are weighted according to the breathing pdf and accumulated in a common reference geometry, which involves dose warping based on deformable registration. The algorithm produces deliverable multileaf collimator segments and was tested on a sample lung cancer patient dataset with large target excursion. Accumulated doses of the moving target and organs at risk of this plan were compared with those of corresponding margin-based static IMRT plans for free-breathing and gated treatment, as well as target tracking. Results: Target tracking provided best target coverage. Both the presented 4D IMRT approach for free-breathing treatment and gated treatment gave similar results for target coverage and lung dose, with significantly better target coverage than the margin-based static IMRT plan for free-breathing treatment. Conclusions: The presented 4D planning concept offers an alternative to gating by providing the optimal dose for free-breathing IMRT treatment. Although the focus of this study was 4D lung planning, the approach can be generally applied for IMRT optimization in randomly deforming patient models.

Soehn, Matthias, E-mail: Matthias.Soehn@med.uni-tuebingen.d [Section for Biomedical Physics, University Hospital for Radiation Oncology, Tuebingen (Germany); Weinmann, Martin [Department of Radiotherapy, University Hospital for Radiation Oncology, Tuebingen (Germany); Alber, Markus [Section for Biomedical Physics, University Hospital for Radiation Oncology, Tuebingen (Germany)

2009-11-01T23:59:59.000Z

20

Observations of the filamentation of high-intensity laser-produced electron beams  

SciTech Connect (OSTI)

Filamented electron beams have been observed to be emitted from the rear of thin solid targets irradiated by a high-intensity short-pulse laser when there is low-density plasma present at the back of the target. These observations are consistent with a laser-generated beam of relativistic electrons propagating through the target, which is subsequently fragmented by a Weibel-like instability in the low-density plasma at the rear. These measurements are in agreement with particle-in-cell simulations and theory, since the filamentation instability is predicted to be dramatically enhanced when the electron beam density approaches that of the background plasma.

Wei, M.S.; Beg, F.N.; Dangor, A.E.; Gopal, A.; Tatarakis, M.; Krushelnick, K. [Blackett Laboratory, Imperial College London SW7 2BZ (United Kingdom); Clark, E.L.; Evans, R.G. [Blackett Laboratory, Imperial College London SW7 2BZ (United Kingdom); Plasma Physics Department, AWE plc, Aldermaston, Reading RG7 4PR (United Kingdom); Ledingham, K.W.D. [Department of Physics, University of Strathclyde, Glasgow G4 0NG (United Kingdom); Plasma Physics Department, AWE plc, Aldermaston, Reading RG7 4PR (United Kingdom); McKenna, P. [Department of Physics, University of Strathclyde, Glasgow G4 0NG (United Kingdom); Norreys, P.A. [Central Laser Facility, Rutherford Appleton Laboratory, Chilton, Oxon OX11 OQX (United Kingdom); Zepf, M. [Department of Physics, The Queen's University, University Road, Belfast BT7 1NN (United Kingdom)

2004-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "intensive observation period" 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

OBSERVATIONS OF INTENSITY FLUCTUATIONS ATTRIBUTED TO GRANULATION AND FACULAE ON SUN-LIKE STARS FROM THE KEPLER MISSION  

SciTech Connect (OSTI)

Sun-like stars show intensity fluctuations on a number of timescales due to various physical phenomena on their surfaces. These phenomena can convincingly be studied in the frequency spectra of these stars-while the strongest signatures usually originate from spots, granulation, and p-mode oscillations, it has also been suggested that the frequency spectrum of the Sun contains a signature of faculae. We have analyzed three stars observed for 13 months in short cadence (58.84 s sampling) by the Kepler mission. The frequency spectra of all three stars, as for the Sun, contain signatures that we can attribute to granulation, faculae, and p-mode oscillations. The temporal variability of the signatures attributed to granulation, faculae, and p-mode oscillations was analyzed and the analysis indicates a periodic variability in the granulation and faculae signatures-comparable to what is seen in the Sun.

Karoff, C. [Stellar Astrophysics Centre, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C (Denmark)] [Stellar Astrophysics Centre, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C (Denmark); Campante, T. L. [Centro de Astrofisica and Faculdade de Ciencias, Universidade do Porto, Rua das Estrelas, 4150-762 Porto (Portugal)] [Centro de Astrofisica and Faculdade de Ciencias, Universidade do Porto, Rua das Estrelas, 4150-762 Porto (Portugal); Ballot, J. [CNRS, Institut de Recherche en Astrophysique et Planetologie, 14 avenue Edouard Belin, F-31400, Toulouse (France)] [CNRS, Institut de Recherche en Astrophysique et Planetologie, 14 avenue Edouard Belin, F-31400, Toulouse (France); Kallinger, T. [Instituut voor Sterrenkunde, K. U. Leuven, Celestijnenlaan 200D, B-3001 Leuven (Belgium)] [Instituut voor Sterrenkunde, K. U. Leuven, Celestijnenlaan 200D, B-3001 Leuven (Belgium); Gruberbauer, M. [Institute for Computational Astrophysics, Department of Astronomy and Physics, Saint Mary's University, B3H 3C3 Halifax (Canada)] [Institute for Computational Astrophysics, Department of Astronomy and Physics, Saint Mary's University, B3H 3C3 Halifax (Canada); Garcia, R. A. [Laboratoire AIM, CEA/DSM-CNRS-Universit Paris Diderot, IRFU/SAp, Centre de Saclay, F-91191 Gif-sur-Yvette Cedex (France)] [Laboratoire AIM, CEA/DSM-CNRS-Universit Paris Diderot, IRFU/SAp, Centre de Saclay, F-91191 Gif-sur-Yvette Cedex (France); Caldwell, D. A.; Christiansen, J. L. [SETI Institute/NASA Ames Research Center, Moffett Field, CA 94035 (United States)] [SETI Institute/NASA Ames Research Center, Moffett Field, CA 94035 (United States); Kinemuchi, K., E-mail: karoff@phys.au.dk [Bay Area Environmental Research Inst./NASA Ames Research Center, Moffett Field, CA 94035 (United States)

2013-04-10T23:59:59.000Z

22

Ultrashort-period MS eclipsing systems. New observations and light curve solutions of six NSVS binaries  

E-Print Network [OSTI]

We carried out photometric and low-resolution spectral observations of six eclipsing ultrashort-period binaries with MS components. The light curve solutions of the Rozhen observations show that all targets are overcontact systems. We found well-defined empirical relation "period -- semi-major axis" for the short-period binaries and used it for estimation of the global parameters of the targets. Our results revealed that NSVS 925605 is quite interesting target: (a) it is one of a few contact binaries with M components; (b) it exhibits high activity (emission in H$\\alpha$ line, X-ray emission, large cool spots, non-Planck energy distribution); (c) its components differ in temperature by 700 K. All appearances of high magnetic activity and huge fillout factor (0.7) of NSVS 925605 might be assumed as a precursor of the predicted merging of close magnetic binaries. Another unusual binary is NSVS 2700153 which reveals considerable long-term variability.

Dimitrov, Dinko

2015-01-01T23:59:59.000Z

23

LOW-FREQUENCY OBSERVATIONS OF TRANSIENT QUASI-PERIODIC RADIO EMISSION FROM THE SOLAR ATMOSPHERE  

SciTech Connect (OSTI)

We report low-frequency observations of quasi-periodic, circularly polarized, harmonic type III radio bursts whose associated sunspot active regions were located close to the solar limb. The measured periodicity of the bursts at 80 MHz was ?5.2 s, and their average degree of circular polarization (dcp) was ?0.12. We calculated the associated magnetic field B (1) using the empirical relationship between the dcp and B for the harmonic type III emission, and (2) from the observed quasi-periodicity of the bursts. Both the methods result in B ? 4.2 G at the location of the 80 MHz plasma level (radial distance r ? 1.3 R{sub ?}) in the active region corona.

Sasikumar Raja, K.; Ramesh, R., E-mail: sasikumar@iiap.res.in [Indian Institute of Astrophysics, II Block, Koramangala, Bangalore 560 034 (India)

2013-09-20T23:59:59.000Z

24

Summary: An Approximately 1.3-Year Periodicity in ap and IMP 8 Solar Wind Observations  

E-Print Network [OSTI]

Summary: An Approximately 1.3-Year Periodicity in ap and IMP 8 Solar K Wind Observations . I. Paularena and J. D. Richardson A A Center for Space Research, Massachusetts Institute of Technology, MD C G. S. Gordon, Jr. and A. J. Lazarus enter for Space Research, Massachusetts Institute

Richardson, John

25

EVOLUTIONARY TRACKS OF TRAPPED, ACCRETING PROTOPLANETS: THE ORIGIN OF THE OBSERVED MASS-PERIOD RELATION  

SciTech Connect (OSTI)

The large number of observed exoplanets ({approx}>700) provides important constraints on their origin as deduced from the mass-period diagram of planets. The most surprising features in the diagram are (1) the (apparent) pileup of gas giants at a period of {approx}500 days ({approx}1 AU) and (2) the so-called mass-period relation, which indicates that planetary mass is an increasing function of orbital period. We construct the evolutionary tracks of growing planets at planet traps in evolving protoplanetary disks and show that they provide a good physical understanding of how these observational properties arise. The fundamental feature of our model is that inhomogeneities in protoplanetary disks give rise to multiple (up to 3) trapping sites for rapid (type I) planetary migration of planetary cores. The viscous evolution of disks results in the slow radial movement of the traps and their cores from large to small orbital periods. In our model, the slow inward motion of planet traps is coupled with the standard core accretion scenario for planetary growth. As planets grow, type II migration takes over. Planet growth and radial movement are ultimately stalled by the dispersal of gas disks via photoevaporation. Our model makes a number of important predictions: that distinct sub-populations of planets that reflect the properties of planet traps where they have grown result in the mass-period relation, that the presence of these sub-populations naturally explains a pileup of planets at {approx}1 AU, and that evolutionary tracks from the ice line do put planets at short periods and fill an earlier claimed {sup p}lanet desert{sup -}a sparse population of planets in the mass-semimajor axis diagram.

Hasegawa, Yasuhiro [Department of Physics and Astronomy, McMaster University, Hamilton, ON L8S 4M1 (Canada); Pudritz, Ralph E., E-mail: hasegay@physics.mcmaster.ca, E-mail: pudritz@physics.mcmaster.ca [Origins Institute, McMaster University, Hamilton, ON L8S 4M1 (Canada)

2012-12-01T23:59:59.000Z

26

Observations of the filamentation of high-intensity laser-produced electron beams M. S. Wei,1  

E-Print Network [OSTI]

be necessary for actual ignition experiments, the required laser needs to have energies of tens of kObservations of the filamentation of high-intensity laser-produced electron beams M. S. Wei,1 F. N Central Laser Facility, Rutherford Appleton Laboratory, Chilton, Oxon OX11 OQX, United Kingdom 5

Strathclyde, University of

27

Estimating the birth period of pulsars through GLAST/LAT observations of their wind nebulae  

E-Print Network [OSTI]

In this paper we show that the high energy $\\gamma$-ray flux in the GeV domain from mature pulsar wind nebulae (PWN) scales as the change in rotational kinetic energy $I(\\Omega_0^2-\\Omega^2)/2$ since birth, rather than the present day spindown power $I\\Omega\\dot{\\Omega}$. This finding holds as long as the lifetime of inverse Compton emitting electrons exceeds the age of the system. For a typical $\\gamma^{-2}$ electron spectrum, the predicted flux depends mostly on the pulsar birth period, conversion efficiency of spindown power to relativistic electrons and distance to the PWN, so that first order estimates of the birth period can be assessed from {\\it GLAST/LAT} observations of PWN. For this purpose we derive an analytical expression. The associated (``uncooled'') photon spectral index in the GeV domain is expected to cluster around $\\sim 1.5$, which is bounded at low energies by an intrinsic spectral break, and at higher energies by a second spectral break where the photon index steepens to $\\sim 2$ due to radiation losses. Mature PWN are expected to have expanded to sizes larger than currently known PWN, resulting in relatively low magnetic energy densities and hence survival of GeV inverse Compton emitting electrons. Whereas such a PWN may be radio and X-ray quiet in synchrotron radiation, it may still be detectable as a {\\it GLAST/LAT} source as a result of the relic electrons in the PWN.

O. C. de Jager

2008-03-14T23:59:59.000Z

28

Long-period fiber grating inscription under high-intensity 352 nm femtosecond irradiation: Three-photon absorption  

E-Print Network [OSTI]

-photon absorption and energy deposition in cladding Stephen A. Slattery, David N. Nikogosyan * Department of Physics-intensity 211 and 264 nm laser pulses. Three-photon absorption coefficients for pure fused silica in the fiber cladding and the core. It was shown that the deposition of the majority of the absorbed energy

Nikogosyan, David N.

29

Estimates of magnitudes and short-period wave attenuation of Chinese earthquakes from Modified Mercalli intensity data  

Science Journals Connector (OSTI)

...second, corresponding to MM intensities XI through III, are: 0.13; 0.085; 0...Huairou; o, Changping; p, Shunyi; q, Ping-Gu; r, Qianxi; s, Taohuabad; t...69, 207-220. Chen, P. S., Y. Jin, and W. X. Li (1984). The regional...

Peishan Chen; Otto W. Nuttli

30

Experimental Observation of Electrons Accelerated in Vacuum to Relativistic Energies by a High-Intensity Laser  

Science Journals Connector (OSTI)

Free electrons have been accelerated in vacuum to MeV energies by a high-intensity subpicosecond laser pulse ( 1019 W/cm2, 300 fs). The experimental data are in good agreement with the relativistic motion of electrons in a spatially and temporally finite electromagnetic field, both in terms of maximum energy and scattering angle.

G. Malka; E. Lefebvre; J. L. Miquel

1997-04-28T23:59:59.000Z

31

Detection and Plant Monitoring Programs: Lessons from an Intensive Survey of Asclepias meadii with Five Observers  

E-Print Network [OSTI]

and fecundity, and explore how population data relate to management. When collected with reliable protocols, such data provide essential information for decision-making in applied ecology. With few exceptions, population monitoring ultimately depends on observ... June 2007, we laid out 100 m tapes, and five individuals (observers A–E) indepen- dently searched for stems of A. meadii along each transect. Four of the five observers had experience with A. meadii surveys (A–D). The na?¨ve observer (E) was trained...

Alexander, Helen M.; Reed, Aaron W.; Kettle, W. Dean; Slade, Norman A.; Bodbyl-Roels, Sarah Ann; Collins, Cathy Diane; Salisbury,Vaughn

2012-12-20T23:59:59.000Z

32

Heating of a dense plasma with an intense relativistic electron beam: initial observations  

SciTech Connect (OSTI)

A dense (approx. 10/sup 17/ cm/sup -3/) plasma has been heated via the relativistic two-stream instability using a 3 MeV, intense (5 x 10/sup 5/ A/cm/sup 2/) electron beam. Evidence for heating has been obtained with diamagnetic loops, thin-foil witness plates, and a 2-channel, broad-band soft x-ray detector. Measurements of energy loss from the beam using calorimetry techniques have been attempted. The measured strong dependence of heating on beam transverse temperature and the very short interaction length (<4 cm) are consistent with beam-plasma coupling due to the relativistic electron-electron two-stream instability. Soft x-ray measurements made >100 ns after the beam pulse are consistent with a plasma temperature <150 eV and line emission near 80 to 90 eV.

Montgomery, M.D.; Parker, J.V.; Riepe, K.B.; Sheffield, R.L.

1981-01-01T23:59:59.000Z

33

Bursty synchrotron intensity variations of Jovian 6-cm radio emissions and Jupiter's quasi-periodic polar activities  

Science Journals Connector (OSTI)

......low-frequency (nu 0.7 MHz) beamed radio bursts...low-frequency (nu 0.7 MHz) beamed radio bursts...observations (10-20 kHz) of Ulysses during...polar field lines and plasmas (Halekas et al...bandwidth of 100-490 MHz and an antenna efficiency...measurements for atmospheric effects and the antenna......

Yu-Qing Lou; Huagang Song; Yinyu Liu; Meng Yang

2012-03-01T23:59:59.000Z

34

Generation of periodic ultrashort electron bunches and strongly asymmetric ion Coulomb explosion in nanometer foils interacting with ultra-intense laser pulse  

SciTech Connect (OSTI)

The interaction of a linearly polarized intense laser pulse with an ultrathin nanometer plasma layer is investigated to understand the physics of the ion acceleration. It is shown by the computer simulation that the plasma response to the laser pulse comprises two steps. First, due to the vxB effect, electrons in the plasma layer are extracted and periodic ultrashort relativistic electron bunches are generated every half of a laser period. Second, strongly asymmetric Coulomb explosion of ions in the foil occurs due to the strong electrostatic charge separation, once the foil is burnt through. Followed by the laser accelerated electron bunch, the ion expansion in the forward direction occurs along the laser beam that is much stronger as compared to the backward direction.

Tian Youwei [College of Mathematics and Physics, Nanjing University of Posts and Telecommunications, Nanjing 210003 (China); Yu Wei; Xu Han; Lei Anle; Shen Baifei; Wang Xin [State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China); Lu Peixiang [State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan 430070 (China); Senecha, Vinod [Raja Ramanna Centre for Advanced Technology, Indore-452 013 (India)

2008-05-15T23:59:59.000Z

35

Observation of muon intensity variations by season with the MINOS far detector  

E-Print Network [OSTI]

The temperature of the upper atmosphere affects the height of primary cosmic ray interactions and the production of high-energy cosmic ray muons which can be detected deep underground. The MINOS far detector at Soudan MN, USA, has collected over 67 million cosmic ray induced muons. The underground muon rate measured over a period of five years exhibits a 4% peak-to-peak seasonal variation which is highly correlated with the temperature in the upper atmosphere. The coefficient, $\\alpha_T$, relating changes in the muon rate to changes in atmospheric temperature was found to be: $\\alpha_T = 0.874 \\pm 0.009$ (stat.) $\\pm 0.010$ (syst.). Pions and kaons in the primary hadronic interactions of cosmic rays in the atmosphere contribute differently to $\\alpha_T$ due to the different masses and lifetimes. This allows the measured value of $\\alpha_T$ to be interpreted as a measurement of the K/$\\pi$ ratio for $E_{p}\\gtrsim$\\unit[7]{TeV} of $0.13 \\pm 0.08$, consistent with the expectation from collider experiments.

The MINOS Collaboration

2009-09-22T23:59:59.000Z

36

Observation of muon intensity variations by season with the MINOS Near Detector  

E-Print Network [OSTI]

A sample of 1.53$\\times$10$^{9}$ cosmic-ray-induced single muon events has been recorded at 225 meters-water-equivalent using the MINOS Near Detector. The underground muon rate is observed to be highly correlated with the effective atmospheric temperature. The coefficient $\\alpha_{T}$, relating the change in the muon rate to the change in the vertical effective temperature, is determined to be 0.428$\\pm$0.003(stat.)$\\pm$0.059(syst.). An alternative description is provided by the weighted effective temperature, introduced to account for the differences in the temperature profile and muon flux as a function of zenith angle. Using the latter estimation of temperature, the coefficient is determined to be 0.352$\\pm$0.003(stat.)$\\pm$0.046(syst.).

P. Adamson; I. Anghel; A. Aurisano; G. Barr; M. Bishai; A. Blake; G. J. Bock; D. Bogert; S. V. Cao; C. M. Castromonte; S. Childress; J. A. B. Coelho; L. Corwin; D. Cronin-Hennessy; J. K. de Jong; A. V. Devan; N. E. Devenish; M. V. Diwan; C. O. Escobar; J. J. Evans; E. Falk; G. J. Feldman; T. H. Fields; M. V. Frohne; H. R. Gallagher; R. A. Gomes; M. C. Goodman; P. Gouffon; N. Graf; R. Gran; K. Grzelak; A. Habig; S. R. Hahn; J. Hartnell; R. Hatcher; A. Holin; J. Huang; J. Hylen; G. M. Irwin; Z. Isvan; C. James; D. Jensen; T. Kafka; S. M. S. Kasahara; G. Koizumi; M. Kordosky; A. Kreymer; K. Lang; J. Ling; P. J. Litchfield; P. Lucas; W. A. Mann; M. L. Marshak; M. Mathis; N. Mayer; C. McGivern; M. M. Medeiros; R. Mehdiyev; J. R. Meier; M. D. Messier; W. H. Miller; S. R. Mishra; S. Moed Sher; C. D. Moore; L. Mualem; J. Musser; D. Naples; J. K. Nelson; H. B. Newman; R. J. Nichol; J. A. Nowak; J. O. Connor; M. Orchanian; S. Osprey; R. B. Pahlka; J. Paley; R. B. Patterson; G. Pawloski; A. Perch; S. Phan-Budd; R. K. Plunkett; N. Poonthottathil; X. Qiu; A. Radovic; B. Rebel; C. Rosenfeld; H. A. Rubin; M. C. Sanchez; J. Schneps; A. Schreckenberger; P. Schreiner; R. Sharma; A. Sousa; N. Tagg; R. L. Talaga; J. Thomas; M. A. Thomson; X. Tian; A. Timmons; S. C. Tognini; R. Toner; D. Torretta; J. Urheim; P. Vahle; B. Viren; A. Weber; R. C. Webb; C. White; L. Whitehead; L. H. Whitehead; S. G. Wojcicki; R. Zwaska

2014-06-26T23:59:59.000Z

37

TURBULENT CHARACTERISTICS IN THE INTENSITY FLUCTUATIONS OF A SOLAR QUIESCENT PROMINENCE OBSERVED BY THE HINODE SOLAR OPTICAL TELESCOPE  

SciTech Connect (OSTI)

We focus on Hinode Solar Optical Telescope (SOT) calcium II H-line observations of a solar quiescent prominence (QP) that exhibits highly variable dynamics suggestive of turbulence. These images capture a sufficient range of scales spatially ({approx}0.1-100 arcsec) and temporally ({approx}16.8 s-4.5 hr) to allow the application of statistical methods used to quantify finite range fluid turbulence. We present the first such application of these techniques to the spatial intensity field of a long-lived solar prominence. Fully evolved inertial range turbulence in an infinite medium exhibits multifractal scale invariance in the statistics of its fluctuations, seen as power-law power spectra and as scaling of the higher order moments (structure functions) of fluctuations which have non-Gaussian statistics; fluctuations {delta}I(r, L) = I(r + L) - I(r) on length scale L along a given direction in observed spatial field I have moments that scale as ({delta}I(r, L){sup p}) {approx} L{sup {zeta}(p)}. For turbulence in a system that is of finite size, or that is not fully developed, one anticipates a generalized scale invariance or extended self-similarity (ESS) ({delta}I(r, L){sup p}) {approx} G(L){sup {zeta}(p)}. For these QP intensity measurements we find scaling in the power spectra and ESS. We find that the fluctuation statistics are non-Gaussian and we use ESS to obtain ratios of the scaling exponents {zeta}(p): these are consistent with a multifractal field and show distinct values for directions longitudinal and transverse to the bulk (driving) flow. Thus, the intensity fluctuations of the QP exhibit statistical properties consistent with an underlying turbulent flow.

Leonardis, E.; Chapman, S. C.; Foullon, C. [Centre for Fusion Space and Astrophysics, Department of Physics, University of Warwick, Coventry, CV4 7AL (United Kingdom)

2012-02-01T23:59:59.000Z

38

VI-Band Follow-Up Observations of Ultra-Long-Period Cepheid Candidates in M31  

E-Print Network [OSTI]

The ultra-long period Cepheids (ULPCs) are classical Cepheids with pulsation periods exceeding $\\approx 80$ days. The intrinsic brightness of ULPCs are ~1 to ~3 mag brighter than their shorter period counterparts. This makes them attractive in future distance scale work to derive distances beyond the limit set by the shorter period Cepheids. We have initiated a program to search for ULPCs in M31, using the single-band data taken from the Palomar Transient Factory, and identified eight possible candidates. In this work, we presented the VI-band follow-up observations of these eight candidates. Based on our VI-band light curves of these candidates and their locations in the color-magnitude diagram and the Period-Wesenheit diagram, we verify two candidates as being truly ULPCs. The six other candidates are most likely other kinds of long-period variables. With the two confirmed M31 ULPCs, we tested the applicability of ULPCs in distance scale work by deriving the distance modulus of M31. It was found to be $\\mu_...

Ngeow, Chow-Choong; Yang, Michael Ting-Chang; Lin, Chi-Sheng; Hsiao, Hsiang-Yao; Cheng, Yu-Chi; Lin, Zhong-Yi; Lin, I-Ling; Kanbur, Shashi M; Ip, Wing-Huen

2015-01-01T23:59:59.000Z

39

Suzaku And Multi-Wavelength Observations of OJ 287 During the Periodic Optical Outburst in 2007  

SciTech Connect (OSTI)

Suzaku observations of the blazar OJ 287 were performed in 2007 April 10-13 and November 7-9. They correspond to a quiescent and a flaring state, respectively. The X-ray spectra of the source can be well described with single power-law models in both exposures. The derived X-ray photon index and the flux density at 1 keV were found to be {Lambda} = 1.65 {+-} 0.02 and S{sub 1keV} = 215 {+-} 5 nJy, in the quiescent state. In the flaring state, the source exhibited a harder X-ray spectrum ({Lambda} = 1.50 {+-} 0.01) with a nearly doubled X-ray flux density S{sub 1keV} = 404{sub -5}{sup +6} nJy. Moreover, significant hard X-ray signals were detected up to {approx} 27 keV. In cooperation with the Suzaku, simultaneous radio, optical, and very-high-energy {gamma}-ray observations of OJ 287 were performed with the Nobeyama Millimeter Array, the KANATA telescope, and the MAGIC telescope, respectively. The radio and optical fluxes in the flaring state (3.04 {+-} 0.46 Jy and 8.93 {+-} 0.05 mJy at 86.75 Hz and in the V-band, respectively) were found to be higher by a factor of 2-3 than those in the quiescent state (1.73 {+-} 0.26 Jy and 3.03 {+-} 0.01 mJy at 86.75 Hz and in the V-band, respectively). No notable {gamma}-ray events were detected in either observation. The spectral energy distribution of OJ 287 indicated that the X-ray spectrum was dominated by inverse Compton radiation in both observations, while synchrotron radiation exhibited a spectral cutoff around the optical frequency. Furthermore, no significant difference in the synchrotron cutoff frequency was found between the quiescent and flaring states. According to a simple synchrotron self-Compton model, the change of the spectral energy distribution is due to an increase in the energy density of electrons with small changes of both the magnetic field strength and the maximum Lorentz factor of electrons.

Seta, Hiromi; /Saitama U.; Isobe, N.; /Kyoto U.; Tashiro, Makoto S.; /Saitama U.; Yaji, Yuichi; /Saitama U.; Arai, Akira; /Hiroshima U.; Fukuhara, Masayuki; /Tokyo U. /Grad. U. for Adv. Stud., Nagano; Kohno, Kotaro; /Tokyo U.; Nakanishi, Koichiro; /Grad. U. for Adv. Stud., Nagano; Sasada, Mahito; /Hiroshima U.; Shimajiri, Yoshito; /Tokyo U. /Grad. U. for Adv. Stud., Nagano; Tosaki, Tomoka; /Grad. U. for Adv. Stud., Nagano; Uemura, Makoto; /Hiroshima U.; Anderhub, Hans; /Zurich, ETH; Antonelli, L.A.; /INFN, Rome; Antoranz, Pedro; /Madrid U.; Backes, Michael; /Dortmund U.; Baixeras, Carmen; /Barcelona, Autonoma U.; Balestra, Silvia; /Madrid U.; Barrio, Juan Abel; /Madrid U.; Bastieri, Denis; /Padua U. /INFN, Padua; Becerra Gonzalez, Josefa; /IAC, La Laguna /Dortmund U. /Lodz U. /Lodz U. /DESY /Zurich, ETH /Munich, Max Planck Inst. /Padua U. /INFN, Padua /Siena U. /INFN, Siena /Barcelona, IEEC /Munich, Max Planck Inst. /Barcelona, IEEC /Madrid U. /Zurich, ETH /Wurzburg U. /Zurich, ETH /Madrid U. /Munich, Max Planck Inst. /Zurich, ETH /Madrid U. /Barcelona, IFAE /IAC, La Laguna /Laguna U., Tenerife /INFN, Rome /Dortmund U. /Udine U. /INFN, Udine /INFN, Padua /Udine U. /INFN, Udine /Barcelona, IEEC /Madrid U. /Udine U. /INFN, Udine /Udine U. /INFN, Udine /Udine U. /INFN, Udine /IAC, La Laguna /Madrid, CIEMAT /Sierra Nevada Observ. /Zurich, ETH /Padua U. /INFN, Padua /Wurzburg U. /Barcelona, IFAE /UC, Davis /Barcelona, IFAE /Barcelona, IFAE /Madrid U. /Barcelona, Autonoma U. /Munich, Max Planck Inst. /IAC, La Laguna /Laguna U., Tenerife /Barcelona, IFAE /IAC, La Laguna /Munich, Max Planck Inst. /Barcelona, Autonoma U. /Munich, Max Planck Inst. /SLAC /IAC, La Laguna /Laguna U., Tenerife /Zurich, ETH /Wurzburg U. /Munich, Max Planck Inst. /Munich, Max Planck Inst. /Munich, Max Planck Inst. /Zurich, ETH /INFN, Rome /UC, Davis /Siena U. /INFN, Siena /Turku U. /Padua U. /INFN, Padua /Udine U. /INFN, Udine /Padua U. /INFN, Padua /Zurich, ETH /Munich, Max Planck Inst. /DESY /Sofiya, Inst. Nucl. Res. /Udine U. /INFN, Udine /Wurzburg U. /INFN, Rome /Padua U. /INFN, Padua /Barcelona, IFAE /Barcelona, IFAE /Siena U. /INFN, Siena /Wurzburg U. /Madrid U. /Munich, Max Planck Inst. /Munich, Max Planck Inst. /Barcelona, IEEC /Sierra Nevada Observ. /Barcelona, IFAE /Madrid U. /Turku U. /Munich, Max Planck Inst. /Munich, Max Planck Inst. /UC, Santa Cruz /Madrid U. /Siena U. /INFN, Siena /Barcelona, IEEC /Turku U. /Padua U. /INFN, Padua /Zurich, ETH /Siena U. /INFN, Siena /Sierra Nevada Observ. /Udine U. /INFN, Udine /INFN, Trieste /Padua U. /INFN, Padua /Sierra Nevada Observ. /Padua U. /INFN, Padua /Barcelona, IFAE /Barcelona, IFAE /Dortmund U. /Barcelona, IEEC /ICREA, Barcelona /Barcelona, IFAE /Zurich, ETH /Barcelona, Autonoma U. /Wurzburg U. /Padua U. /INFN, Padua /Munich, Max Planck Inst. /INFN, Rome /Sierra Nevada Observ. /DESY /Padua U. /INFN, Padua /Udine U. /INFN, Udine /Munich, Max Planck Inst. /Munich, Max Planck Inst. /Pisa U. /INFN, Pisa /Barcelona, IFAE /Barcelona, IEEC /Turku U. /Munich, Max Planck Inst. /Lodz U. /Lodz U. /Wurzburg U. /Siena U. /INFN, Siena /Zurich, ETH /Turku U. /INFN, Rome /Sofiya, Inst. Nucl. Res. /Barcelona, IFAE /Munich, Max Planck Inst. /DESY /ICREA, Barcelona /Barcelona, IEEC /Siena U. /INFN, Siena /Sofiya, Inst. Nucl. Res. /Munich, Max Planck Inst. /Munich, Max Planck Inst. /Barcelona, IEEC /Sierra Nevada Observ. /Barcelona, IFAE /Barcelona, Autonoma U.

2011-12-01T23:59:59.000Z

40

Intense and Extreme Wind Speeds Observed by Anemometer and Seismic Networks: An Eastern U.S. Case Study  

Science Journals Connector (OSTI)

The scale and intensity of extreme wind events have tremendous relevance to determining the impact on infrastructure and natural and managed ecosystems. Analyses presented herein show the following. 1) Wind speeds in excess of the station-specific ...

S. C. Pryor; R. Conrick; C. Miller; J. Tytell; R. J. Barthelmie

2014-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "intensive observation period" 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

Echelle diagrams and period spacings of g modes in gamma Doradus stars from four years of Kepler observations  

E-Print Network [OSTI]

We use photometry from the Kepler Mission to study oscillations in gamma Doradus stars. Some stars show remarkably clear sequences of g modes and we use period echelle diagrams to measure period spacings and identify rotationally split multiplets with l=1 and l=2. We find small deviations from regular period spacings that arise from the gradient in the chemical composition just outside the convective core. We also find stars for which the period spacing shows a strong linear trend as a function of period, consistent with relatively rapid rotation. Overall, the results indicate it will be possible to apply asteroseismology to a range of gamma Dor stars.

Bedding, Timothy R; Colman, Isabel L; Kurtz, Donald W

2014-01-01T23:59:59.000Z

42

ON THE ANTI-CORRELATION BETWEEN SPECTRAL LINE BROADENING AND INTENSITY IN CORONAL STRUCTURES OBSERVED WITH EIS  

SciTech Connect (OSTI)

The advance in spectral resolution of the Extreme Ultraviolet Imaging (EIS) spectrometer on board Hinode has allowed for more detailed analysis of coronal spectral lines. Large line broadening and blueshifted velocities have been found in the periphery of active region (AR) cores and near the footpoints of coronal loops. This line broadening is yet to be understood. We study the correlation of intensity and line width for entire ARs and sub-regions selected to include coronal features. The results show that although a slight positive correlation can be found when considering whole images, many sub-regions have a negative correlation between intensity and line width. Sections of a coronal loop display some of the largest anti-correlations found for this study with the increased line broadening occurring directly adjacent to the footpoint section of the loop structure, not at the footpoint itself. The broadened lines may be due to a second Doppler-shifted component that is separate from the main emitting feature such as a coronal loop, but related in their excitation. The small size of these features forces the considerations of investigator and instrumental effects. Preliminary analyses are shown that indicate the possibility of a point-spread function that is not azimuthally symmetric and may affect velocity and line profile measurements.

Scott, J. T.; Martens, P. C. H. [Deptartment of Physics, Montana State University, Bozeman, MT 59717 (United States)

2011-12-01T23:59:59.000Z

43

Periodicity faults in chain silicates: A new type of planar lattice fault observed with high resolution electron microscopy  

Science Journals Connector (OSTI)

The existence of errors in the periodicity of the tetrahedral chains in pyroxenes and pyroxenoids is predicted. With high resolution electron microscopy of rhodonite, (Mn, Ca)5[Si5O15], and pyroxmangite, (Mn,Fe,C...

M. Czank; F. Liebau

1980-07-01T23:59:59.000Z

44

Simultaneous observations of Schumann resonances in California and Australia: Evidence for intensity modulation by the local height of the D region  

SciTech Connect (OSTI)

Observations are presented of the horizontal magnetic component of Schumann resonance intensities as simultaneously measured at locations in California and Western Australia during two separate intervals September 2-17, 1989, and April 14-21, 1990. For both intervals, diurnal variations of the average magnetic power over the lowest three modes of the Schumann resonances showed substantially different temporal profiles at the California and Western Australia stations, with interstation correlations of 0.51 and 0.39, respectively. A method is demonstrated for determining from these observations the average local time variation of the height of the D region. A height variation is obtained that is nearly identical for the respective analysis intervals, with a minimum height occurring at approximately 1300-1400 LT and a maximum-to-minimum height difference of roughly 50% of the mean. When corrected for the local D region height, the detailed diurnal intensity profiles over the analysis intervals display a greatly improved similarity, with interstation correlation coefficients increasing from 0.51 to 0.70 and from 0.39 to 0.82, respectively. Substantial agreement between the two stations after correction for D region height suggest that such observations could be used to monitor the global totality and variability of lightning, quantitatively and at time resolutions of the order of 10 min or less, in studies of global change.

Sentman, D.D. (Univ. of California, Los Angeles (United States)); Fraser, B.J. (Univ. of Newcastle, New South Wales (Australia))

1991-09-01T23:59:59.000Z

45

Superorbital Periodic Modulation in Wind-Accretion High-Mass X-ray Binaries from Swift BAT Observations  

E-Print Network [OSTI]

We report the discovery using data from the Swift Burst Alert Telescope (BAT) of superorbital modulation in the wind-accretion supergiant high-mass X-ray binaries 4U 1909+07 (= X 1908+075), IGR J16418-4532, and IGR J16479-4514. Together with already known superorbital periodicities in 2S 0114+650 and IGR J16493-4348, the systems exhibit a monotonic relationship between superorbital and orbital periods. These systems include both supergiant fast X-ray transients (SFXTs) and classical supergiant systems, and have a range of inclination angles. This suggests an underlying physical mechanism which is connected to the orbital period. In addition to these sources with clear detections of superorbital periods, IGR J16393-4643 (= AX J16390.4-4642) is identified as a system that may have superorbital modulation due to the coincidence of low-amplitude peaks in power spectra derived from BAT, RXTE PCA, and INTEGRAL light curves. 1E 1145.1-6141 may also be worthy of further attention due to the amount of low-frequency mo...

Corbet, Robin H D

2013-01-01T23:59:59.000Z

46

Data Intensive  

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

Data Intensive Data Intensive Computing Pilot Program In 2014 NERSC is conducting its second and last round of allocations to projects in data intensive science. This pilot aims to...

47

Swift X-ray and ultraviolet observations of the shortest orbital period double-degenerate system RX J0806.3+1527 (HM Cnc)  

E-Print Network [OSTI]

RX J0806.3+1527 (HM Cnc) is a pulsating X-ray source with 100 per cent modulation on a period of 321.5 s (5.4 min). This period reflects the orbital motion of a close binary system consisting of two interacting white dwarfs. Here we present a series of simultaneous X-ray (0.2-10 keV) and near-ultraviolet (2600 angstrom and 1928 angstrom) observations carried out with the Swift satellite. In the near-ultraviolet the counterpart of RX J0806.3+1527 was detected at flux densities consistent with a blackbody with temperature 27E+3 K. We found that the emission at 2600 angstrom is modulated at the 321.5-s period, with the peak ahead of the X-ray one by 0.28 cycles and coincident, within 0.05 cycles, with the optical. This phase-shift measurement confirms that the X-ray hot spot (located on the primary white dwarf) is at about 80-100 degrees from the direction connecting the two white dwarfs. Albeit at lower significance, the 321.5-s signature is present also in the 1928-angstrom data; at this wavelength, however, t...

Esposito, P; Dall'Osso, S; Covino, S

2013-01-01T23:59:59.000Z

48

ARM - Field Campaign - Shortwave Radiation and Aerosol Intensive  

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

govCampaignsShortwave Radiation and Aerosol Intensive Observation govCampaignsShortwave Radiation and Aerosol Intensive Observation Periods Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Shortwave Radiation and Aerosol Intensive Observation Periods 1998.08.03 - 1998.08.28 Lead Scientist : Warren Wiscombe For data sets, see below. Summary Wednesday, August 5, 1998: IOP Opening Activities: The IOP updates for the Shortwave/Aerosol/BDRF will be composed from notes taken during briefing sessions lead by Don Cahoon and company each night at the Marland Mansion in Ponca City. IOP Status as of 8/4/98 Weather forecasts indicate that cloudy conditions will prevail for the next few days. The Helicopter is on standby for clear sky conditions. Model output indicates clear sky's may move in later this week.

49

The intensity of motivation  

E-Print Network [OSTI]

rearranged before they were repeated in reverse sequence. Electrocardiographic T-wave amplitude (TWA) and changes were monitored during a 15-sec anticipatory phase, as well as during each 15-second mental manipulation phase. (This ensured that the measures..., and the subject was surreptitiously observed. The high-self-esteem subjects were observed to do more practice www.annualreviews.org/aronline Annual Reviews INTENSITY OF MOTIVATION 121 problems for the difficult- than for the easy-to-please experimenter...

Brehm, Jack W.; Self, E. A.

1989-01-01T23:59:59.000Z

50

energy intensity | OpenEI  

Open Energy Info (EERE)

intensity intensity Dataset Summary Description Energy intensity data and documentation published by the U.S. DOE's office of Energy Efficiency and Renewable Energy (EERE). Energy intensity is defined as: amount of energy used in producing a given level of output or activity; expressed as energy per unit of output. This is the energy intensity of the the electricity sector, which is an energy consuming sector that generates electricity. Data are organized to separate electricity-only generators from combined heat and power (CHP) generators. Data is available for the period 1949 - 2004. Source EERE Date Released May 31st, 2006 (8 years ago) Date Updated Unknown Keywords Electricity Energy Consumption energy intensity fossil fuels renewable energy Data application/vnd.ms-excel icon electricity_indicators.xls (xls, 2.1 MiB)

51

2011 Intensity -1 INTENSITY OF SOUND  

E-Print Network [OSTI]

the rate at which energy is passing a certain point. This concept involves sound intensity. Consider the sound intensity. Recall the time rate of energy transfer is called "power". Thus, sound intensity2011 Intensity - 1 INTENSITY OF SOUND The objectives of this experiment are: · To understand

Glashausser, Charles

52

Observation of multiple ionization pathways for OCS in an intense laser field resolved by three-dimensional covariance mapping and visualized by hierarchical ionization topology  

SciTech Connect (OSTI)

The two- and three-body Coulomb explosion of carbonyl sulfide (OCS) by 790 nm, 50 fs laser pulses focused to {approx_equal}10{sup 16} W cm{sup -2} has been investigated by the three-dimensional covariance mapping technique. In a triatomic molecule, a single charge state, in this case the trication, has been observed to dissociate into two distinct energy channels. With the aid of a three-dimensional visualization technique to reveal the ionization hierarchy, evidence is presented for the existence of two sets of ionization pathways resulting from these two initial states. While one group of ions can be modeled using a classical enhanced ionization model, the second group, consisting of mainly asymmetric channels, cannot. The results provide clear evidence that an enhanced ionization approach must also be accompanied by an appreciation of the effects of excited ionic states and multielectronic processes.

Bryan, W. A.; Newell, W. R.; Sanderson, J. H.; Langley, A. J. [Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT (United Kingdom); Department of Physics, University of Waterloo, Waterloo, Ontario, N2L 3G1 (Canada); Central Laser Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX (United Kingdom)

2006-11-15T23:59:59.000Z

53

Observation of multiple ionization pathways for OCS in an intense laser field resolved by three-dimensional covariance mapping and visualized by hierarchical ionization topology  

E-Print Network [OSTI]

The two- and three-body Coulomb explosion of carbonyl sulfide (OCS) by 790 nm, 50 fs laser pulses focussed to $\\approx $ 10$^{16}$ Wcm$^{-2}$ has been investigated by three-dimensional covariance mapping technique. For the first time in a triatomic molecule, a single charge state, in this case the trication, has been observed to dissociate into two distinct energy channels. With the aid of a three dimensional visualization technique to reveal the ionization hierarchy, evidence is presented for the existence of two sets of ionization pathways resulting from these two initial states. While one group of ions can be modeled using a Classical enhanced ionization model, the second group, consisting of mainly asymmetric channels, can not. The results provide clear evidence that an enhanced ionization approach must also be accompanied by an appreciation of the effects of excited ionic states and multi-electronic processes.

W. A. Bryan; W. R. Newell; J. H. Sanderson; A. J. Langley

2006-10-10T23:59:59.000Z

54

Using the Intensity Modulation Index to Test Pulsar Radio Emission Models  

E-Print Network [OSTI]

This letter explores the possibility of testing pulsar radio emission models by observing pulse-to-pulse intensity modulation. It is shown that a relationship between a pulsar's period, period derivative, and intensity modulation is a natural consequence of at least one theoretical model of radio pulsar emission. It is proposed that other models may also predict a similar correlation. The exact form of the relationship will depend on the model in question. Hence, observations of intensity modulation should be able to determine the validity of the various emission models. In an attempt to search for the predicted dependencies, the modulation properties of a set of 12 pulsars are studied. These data are suggestive, but they are unable to differentiate between three possibilities for the emission process. Future observations will be able to confirm these results and determine whether or not specific emission models are viable.

F. A. Jenet; J. A. Gil

2003-06-02T23:59:59.000Z

55

An investigation of time changes in clouds observed over the Gulf of Mexico and Caribbean Sea during the period 18 - 23 July 1961  

E-Print Network [OSTI]

are isopleths of eights of total sky cover. The data in brackets are 1200 GCT observations Daily 1200 GCT positions of Hurricane ANNA, 19 through 24 July 1961 Frame No. 31, Orbit 133T, TIROS III. This photograph was taken at 1544 GCT, 21 July 1961 ix.... The remaining system, somewhat less impressive than the first two, was a mass of cumulus or thick strato- cumulus lying over the higher terrain of north-central Mexico. Figures 7 through 9 depict these cloud masses. eD ?oo ~O 0& oo ~D 8 oo TEMPERATURE...

Cramer, William Paul

2012-06-07T23:59:59.000Z

56

Research Directed at Developing a Classical Theory to Describe Isotope Separation of Polyatomic Molecules Illuminated by Intense Infrared Radiation. Final Report for period May 7, 1979 to September 30, 1979; Extension December 31, 1997  

DOE R&D Accomplishments [OSTI]

This final report describes research on the theory of isotope separation produced by the illumination of polyatomic molecules by intense infrared laser radiation. This process is investigated by treating the molecule, sulfur hexafluoride, as a system of seven classical particles that obey the Newtonian equations of motion. A minicomputer is used to integrate these differential equations. The particles are acted on by interatomic forces, and by the time-dependent electric field of the laser. We have a very satisfactory expression for the interaction of the laser and the molecule which is compatible with infrared absorption and spectroscopic data. The interatomic potential is capable of improvement, and progress on this problem is still being made. We have made several computer runs of the dynamical behavior of the molecule using a reasonably good model for the interatomic force law. For the laser parameters chosen, we find that typically the molecule passes quickly through the resonance region into the quasi-continuum and even well into the real continuum before dissociation actually occurs. When viewed on a display terminal, the motions are exceedingly complex. As an aid to the visualization of the process, we have made a number of 16 mm movies depicting a three-dimensional representation of the motion of the seven particles. These show even more clearly the enormous complexity of the motions, and make clear the desirability of finding ways of characterizing the motion in simple ways without giving all of the numerical detail. One of the ways to do this is to introduce statistical parameters such as a temperature associated with the distribution of kinetic energies of the single particle. We have made such an analysis of our data runs, and have found favorable indications that such methods will prove useful in keeping track of the dynamical histories.

Lamb, W. E. Jr.

1981-12-00T23:59:59.000Z

57

Spatial Intensity Profiles of Galactic Cosmic Rays in the Heliosphere  

SciTech Connect (OSTI)

We study the spatial intensity profiles of galactic cosmic ray protons (H) and {alpha}-particles (He) during the solar minimum periods of 1987 (the so-called negative drift state) and 1977/1997 (both positive drift states) of the heliosphere. These intensities were measured with the Pioneer, Voyager and IMP spacecraft. The 1997 intensities were so low that one cannot readily explain them, even with the acceleration at the solar wind termination shock (SWTS) and modulation in the heliosheath included. Our heliospheric model is azimuthally symmetric with a spherical shock and heliopause, however, and we infer from its results that more realistic geometries may produce modulation effects that will explain the observations better.

Moraal, H. [School of Physics, Northwest University, Potchefstroom 2520 (South Africa); Caballero-Lopez, R.A.; McDonald, F.B. [Institute for Physical Science and Technology, University of Maryland, College Park, MD 20740 (United States)

2004-09-15T23:59:59.000Z

58

Vibration intensity difference thresholds.  

E-Print Network [OSTI]

??The intensity difference threshold is defined as ‘the difference in the intensity of two stimuli which is just sufficient for their difference to be detected’.… (more)

Forta, Nazim Gizem

2009-01-01T23:59:59.000Z

59

Periodicities in gamma ray bursts  

Science Journals Connector (OSTI)

Gamma ray burst models based on magnetic neutron stars face a problem of account for the scarcity of observed periods. Both this scarcity and the typical period found when any is detected are explained if the neutron stars are accreting in binary systems

Kent S. Wood

1984-01-01T23:59:59.000Z

60

Light intensity compressor  

DOE Patents [OSTI]

In a system for recording images having vastly differing light intensities over the face of the image, a light intensity compressor is provided that utilizes the properties of twisted nematic liquid crystals to compress the image intensity. A photoconductor or photodiode material that is responsive to the wavelength of radiation being recorded is placed adjacent a layer of twisted nematic liquid crystal material. An electric potential applied to a pair of electrodes that are disposed outside of the liquid crystal/photoconductor arrangement to provide an electric field in the vicinity of the liquid crystal material. The electrodes are substantially transparent to the form of radiation being recorded. A pair of crossed polarizers are provided on opposite sides of the liquid crystal. The front polarizer linearly polarizes the light, while the back polarizer cooperates with the front polarizer and the liquid crystal material to compress the intensity of a viewed scene. Light incident upon the intensity compressor activates the photoconductor in proportion to the intensity of the light, thereby varying the field applied to the liquid crystal. The increased field causes the liquid crystal to have less of a twisting effect on the incident linearly polarized light, which will cause an increased percentage of the light to be absorbed by the back polarizer. The intensity of an image may be compressed by forming an image on the light intensity compressor.

Rushford, Michael C. (Livermore, CA)

1990-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "intensive observation period" 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

The Intense Radiation Gas  

E-Print Network [OSTI]

We present a new dispersion relation for photons that are nonlinearly interacting with a radiation gas of arbitrary intensity due to photon-photon scattering. It is found that the photon phase velocity decreases with increasing radiation intensity, it and attains a minimum value in the limit of super-intense fields. By using Hamilton's ray equations, a self-consistent kinetic theory for interacting photons is formulated. The interaction between an electromagnetic pulse and the radiation gas is shown to produce pulse self-compression and nonlinear saturation. Implications of our new results are discussed.

M. Marklund; P. K. Shukla; B. Eliasson

2005-03-08T23:59:59.000Z

62

Contributions of weather and fuel mix to recent declines in U.S. energy and carbon intensity  

E-Print Network [OSTI]

of the decrease in energy intensity during the study period,trends in U. S. energy intensity: An index number analysis,industry structure and energy intensity, Energy Economics

Davis, W. Bart; Sanstad, Alan H.; Koomey, Jonathan G.

2002-01-01T23:59:59.000Z

63

ANALYSIS ON THE MAJOR INFLUENCE FACTORS OF ENERGY INTENSITY CHANGING  

E-Print Network [OSTI]

Based on the energy intensity data of period 1990-2008, this paper uses impulse response function and variance decomposition model to empirical analysis the main influencing factors and effects of energy intensity,. The empirical results show that: the energy intensity of itself, and the proportion of secondary industry have a larger impact on energy intensity; the change of energy price and technological progress also play a certain impact on energy intensity; and the link with the internal relations and interaction mechanisms, which can play an active role in improving energy efficiency.

Xia Wang; Lu Tang

64

Long Range Correlations of Light Intensity inside Photonic Nanostructures  

Science Journals Connector (OSTI)

We measured directly long range spatial intensity correlations inside quasi-two dimensional disordered photonic waveguides. Enhancement of long-range correlations is observed in...

Sarma, Raktim; Yamilov, Alexey G; Shapiro, Boris; Cao, Hui

65

Le Bail Intensity Extraction  

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

Le Bail Intensity Extraction Le Bail Intensity Extraction Presentation Goal Introduce the concepts behind LeBail fitting; why it is useful and how to perform a Le Bail fit with GSAS. Format: PDF slides or a RealPlayer video of the slides with accompanying audio and a demo video that shows how a Le Bail fit is performed. Presentation Outline What is the Le Bail method? Other approaches Why use the Le Bail method? Parameter fitting with Le Bail intensity extraction Le Bail refinement strategies Avoiding problems with background fitting: BKGEDIT Demo: an example Le Bail fit Links Le Bail lecture Slides (as PDF file) FlashMovie presentation with index (best viewed with 1024x768 or better screen resolution) FlashMovie file (800x600 pixels) Le Bail demo FlashMovie presentation with index (best viewed with 1024x768 or

66

Energy Intensity Strategy  

E-Print Network [OSTI]

Our presentation will cover how we began the journey of conserving energy at our facility. We’ll discuss a basic layout of our energy intensity plan and the impact our team has had on the process, what tools we’re using, what goals have been...

Rappolee, D.; Shaw, J.

2008-01-01T23:59:59.000Z

67

Unlocking energy intensive habits  

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

energy intensive habits energy intensive habits Presentation at LBL Oct 10, 2013 by Hal Wilhite Professor and Research Director University of Oslo Centre for Development and the Environment Source: WWF US EIA Outlook 2011 Conventional framing of the energy consumption and savings * Sovereign consumers * Economically rational and persistentely reflexive. * Uninfluenced by social and material conditions of everyday life * Focus on efficiency and not on size and volume which is for the most part treated as an indifferent variable Cognitive reductionism The change of frame * From individual to socio-material * From rational/reflexive experience-based (practical) knowledge * From efficiency to reduction A theory of habit * Acknowledges the role of lived experience (history, both cultural and personal) in forming

68

BNL | Mobile Aerosol Observing System (MAOS)  

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

Mobile Aerosol Observing System (MAOS) Mobile Aerosol Observing System (MAOS) The Mobile Aerosol Observing System (MAOS) is a platform and instrument suite for Intensive Operation Periods (IOPs) to conduct in situ measurements of aerosols and their precursors. MAOS is part of the ARM Climate Research Facility. Physically MAOS is contained in two 20' SeaTainers custom adapted to provide a sheltered laboratory environment for operators and instruments even under harsh conditions. The two structures are designated MAOS-A and MAOS-C for Aerosol and Chemistry respectively. Although independent, with separate data systems, inlets and power distribution, the two structures are normally a single operating unit. The two enclosures comprising MAOS are designed for rapid deployment. All components (except for the Radar Wind Profiler) are transported internally

69

High intensity femtosecond enhancement cavities  

E-Print Network [OSTI]

To produce extreme ultraviolet radiation via high harmonic generation (HHG) in rare gases, light intensities in excess of 1014 W/cm 2 are required. Usually such high intensity are obtained by parametric amplification of ...

Abram, Gilberto

2009-01-01T23:59:59.000Z

70

Investigation of periodic multilayers  

E-Print Network [OSTI]

Periodic multilayers of various periods were prepared according to an algorithm proposed by the authors. The reflectivity properties of these systems were investigated using neutron reflectometry.The obtained experimental results were compared with the theoretical expectations. In first approximation, the results proved the main features of the theoretical predictions. These promising results initiate further research of such systems.

Bodnarchuck, V; Ignatovich, V; Veres, T; Yaradaykin, S

2009-01-01T23:59:59.000Z

71

Properties of Fourier spectrum of the signal, generated at the accumulation point of period-tripling bifurcations  

E-Print Network [OSTI]

Universal regularities of the Fourier spectrum of signal, generated by complex analytic map at the period-tripling bifurcations accumulation point are considered. The difference between intensities of the subharmonics at the values of frequency corresponding to the neighbor hierarchical levels of the spectrum is characterized by a constant $\\gamma=21.9$ dB?, which is an analogue of the known value $\\gamma_F=13.4$ dB, intrinsic to the Feigenbaum critical point. Data of the physical experiment, directed to the observation of the spectrum at period-tripling accumulation point, are represented.

O. B. Isaeva

2005-07-11T23:59:59.000Z

72

Solar, geomagnetic and cosmic ray intensity changes, preceding the cyclone appearances around Mexico  

Science Journals Connector (OSTI)

Recently it has been suggested that there exist specific changes in the cosmic ray intensity and some solar and geomagnetic parameters during the days, preceding the hurricane appearances over the North Atlantic Ocean. To understand better these phenomena, data for all hurricanes born not only over the Atlantic but also over the Pacific waters in the last 55 years that hit the Mexican borders were elaborated. As basic hurricane parameters the maximum rotational velocity and the estimated total energy were used. To avoid any interference all hurricanes, overlapping the preceding ones with more than 20 days were not included. Then the behavior of the cosmic ray (CR) intensity, the sunspot (SS) numbers, and the geomagnetic parameters (AP) and (KP) in 35 days prior and 20 days after the cyclone start were investigated. The CR, SS, AP and KP showed much more intensive disturbances in the periods preceding and following the hurricane appearance. For SS this disturbance gradually increase with the hurricane strength. A characteristic peak in the CR intensity appears before the hurricane start. But its place varies between 5 and 20 days before that start. Specific changes were observed in the SS. For major hurricanes they begins sometimes more than 20 days in advance. The AP and the KP show series of bursts, spread over the whole period of 30 preceding days. The obtained results from the performed correlational analysis are enough interesting to motivate a further statistical analysis with more precise techniques: in particular a common periodicity of 30 years found in the number of tropical storms landing into Mexico, the averaged rotational wind velocity and the ACE must be studied in connection with the solar Hale cycle. Using coherence wavelet spectral analysis we present a comparative study between one terrestrial and one cosmophysical phenomena that presumable influence hurricanes development: African dust outbreaks versus cosmic rays for all North Atlantic tropical cyclones. It is shown that the cosmophysical influence cannot be considered as a negligible effect.

J. Pérez-Peraza; S. Kavlakov; V. Velasco; A. Gallegos-Cruz; E. Azpra-Romero; O. Delgado-Delgado; F. Villicaña-Cruz

2008-01-01T23:59:59.000Z

73

ON COMPUTING UPPER LIMITS TO SOURCE INTENSITIES  

SciTech Connect (OSTI)

A common problem in astrophysics is determining how bright a source could be and still not be detected in an observation. Despite the simplicity with which the problem can be stated, the solution involves complicated statistical issues that require careful analysis. In contrast to the more familiar confidence bound, this concept has never been formally analyzed, leading to a great variety of often ad hoc solutions. Here we formulate and describe the problem in a self-consistent manner. Detection significance is usually defined by the acceptable proportion of false positives (background fluctuations that are claimed as detections, or Type I error), and we invoke the complementary concept of false negatives (real sources that go undetected, or Type II error), based on the statistical power of a test, to compute an upper limit to the detectable source intensity. To determine the minimum intensity that a source must have for it to be detected, we first define a detection threshold and then compute the probabilities of detecting sources of various intensities at the given threshold. The intensity that corresponds to the specified Type II error probability defines that minimum intensity and is identified as the upper limit. Thus, an upper limit is a characteristic of the detection procedure rather than the strength of any particular source. It should not be confused with confidence intervals or other estimates of source intensity. This is particularly important given the large number of catalogs that are being generated from increasingly sensitive surveys. We discuss, with examples, the differences between these upper limits and confidence bounds. Both measures are useful quantities that should be reported in order to extract the most science from catalogs, though they answer different statistical questions: an upper bound describes an inference range on the source intensity, while an upper limit calibrates the detection process. We provide a recipe for computing upper limits that applies to all detection algorithms.

Kashyap, Vinay L.; Siemiginowska, Aneta [Smithsonian Astrophysical Observatory, 60 Garden Street, Cambridge, MA 02138 (United States); Van Dyk, David A.; Xu Jin [Department of Statistics, University of California, Irvine, CA 92697-1250 (United States); Connors, Alanna [Eureka Scientific, 2452 Delmer Street, Suite 100, Oakland, CA 94602-3017 (United States); Freeman, Peter E. [Department of Statistics, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213 (United States); Zezas, Andreas, E-mail: vkashyap@cfa.harvard.ed, E-mail: asiemiginowska@cfa.harvard.ed, E-mail: dvd@ics.uci.ed, E-mail: jinx@ics.uci.ed, E-mail: aconnors@eurekabayes.co, E-mail: pfreeman@cmu.ed, E-mail: azezas@cfa.harvard.ed [Physics Department, University of Crete, P.O. Box 2208, GR-710 03, Heraklion, Crete (Greece)

2010-08-10T23:59:59.000Z

74

Budget Period 1  

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

Budget Period 1 Budget Period 1 Budget Period 2 Budget Period 3 0.0% 0.0% 0.0% PMC123.1 - Budget Justification for SF 424A Budget 0 Additional Explanations/Comments (as necessary) *IMPORTANT: In the space provided below (or as an attachment) provide a complete explanation and the full calculations used to derive the total indirect costs. If the total indirect costs are a cumulative amount of more than one calculation or rate application, the explanation and calculations should identify all rates used, along with the base they were applied to (and how the base was derived), and a total for each (along with grand total). The rates and how they are applied should not be averaged to get one indirect cost percentage. NOTE: The indirect rate should be applied to both the Federal Share and Recipient Cost Share.

75

Cyclone Center Using Crowdsourcing to Determine Tropical Cyclone Intensity  

E-Print Network [OSTI]

Cyclone Center Using Crowdsourcing to Determine Tropical Cyclone Intensity Almost all tropical cyclones are not directly observed. Agency estimates of storm position and intensity are not homogeneous in time and space. Cyclone Center uses crowdsourcing to collect data that will lead to a consistent

Hennon, Christopher C.

76

Intense Currents in the Deep Northeast Pacific Ocean  

Science Journals Connector (OSTI)

Observations of deep currents in the northeast Pacific Ocean are reported that indicate that although the eddy kinetic energy level is, as expected, generally low, the deep northeast Pacific is subject to occasional intensely energetic events. ...

Howard J. Freeland

1993-08-01T23:59:59.000Z

77

Radiosonde observations at Pt. Reyes and cloud properties retrieved from  

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

Radiosonde observations at Pt. Reyes and cloud properties retrieved from Radiosonde observations at Pt. Reyes and cloud properties retrieved from GOES-WEST Inoue, Toshiro MRI/JMA Category: Field Campaigns Low-level cloud formed off the west coast of continents plays an important role in general circulation and climate. Marine Stratus Radiation Aerosol and Drizzle (MASRAD) was conducted at the ARM mobile site deployed at Pt Reyes, California during April to September. Here, we studied the relationship between meteorological parameters observed by GPS sonde and cloud properties observed from GOES-WEST during the MASRAD intensive operational period. Cloud properties are retrieved from VISST (Visible Infrared Solar-infrared Split window Technique). The vertical profile of stability, relative humidity (RH) and wind speed observed by GPS sonde are

78

Long-Period Solar Variability  

SciTech Connect (OSTI)

Terrestrial climate records and historical observations of the Sun suggest that the Sun undergoes aperiodic oscillations in radiative output and size over time periods of centuries and millenia. Such behavior can be explained by the solar convective zone acting as a nonlinear oscillator, forced at the sunspot-cycle frequency by variations in heliomagnetic field strength. A forced variant of the Lorenz equations can generate a time series with the same characteristics as the solar and climate records. The timescales and magnitudes of oscillations that could be caused by this mechanism are consistent with what is known about the Sun and terrestrial climate.

GAUTHIER,JOHN H.

2000-07-20T23:59:59.000Z

79

Accelerators for Intensity Frontier Research  

SciTech Connect (OSTI)

In 2008, the Particle Physics Project Prioritization Panel identified three frontiers for research in high energy physics, the Energy Frontier, the Intensity Frontier, and the Cosmic Frontier. In this paper, I will describe how Fermilab is configuring and upgrading the accelerator complex, prior to the development of Project X, in support of the Intensity Frontier.

Derwent, Paul; /Fermilab

2012-05-11T23:59:59.000Z

80

Periodic pumping tests  

Science Journals Connector (OSTI)

......pumping period. The considered penetration depth (eq. 6) constitutes...well transmitted beyond the penetration depth. It is only a question...measurable. In contrast, flow rate measured at the pumping well...subsurface volume represented by penetration depth.) We cannot exclude......

Jörg Renner; Mareike Messar

2006-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "intensive observation period" 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

General Observation Period 2007: Concept and first results  

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

and Orographically- and Orographically- induced Precipitation Study (COPS) AMF AMF Volker Wulfmeyer, Andreas Behrendt, and Hans-Stefan Bauer, University of Hohenheim Christoph Kottmeier and Ulrich Corsmeier, FZK Karlsruhe Gerhard Adrian, German Meteorological Service (DWD Alan Blyth, School of Environment, University of Leeds, UK George Craig, Ulrich Schumann, and Martin Hagen, DLR Susanne Crewell, University of Cologne Paolo Di Girolamo, Universita degli Studi della Basilicata, Potenza, Italy Cyrille Flamant, IPSL, CNRS, France Mark Miller, Brookhaven National Laboratory, Long Island, US Andrea Montani, ARPA-SIM, Bologna, Italy Stephen Mobbs, University of Leeds, UK Evelyne Richard, Laboratoire d'Aérologie, Toulouse, France Mathias W. Rotach and Marco Arpagaus, Meteo Swiss, Zurich, Switzerland

82

ITP Energy Intensive Processes: Energy-Intensive Processes Portfolio...  

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

teChnologIes Program IntroduCtIon the research and development (r&d) portfolio for energy-Intensive Processes (eIP) addresses the top technology opportunities to save energy...

83

Effective Rate Period  

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

Fiscal Year 2014 Fiscal Year 2014 Effective Rate Period As of Beginning of the FY 10/01/2013 - 09/30/2014 Mid-Year Changes (if applicable) 10/01/2013 - 09/30/2014 Power Rates Annual Revenue Requirement Rate Schedule Power Revenue Requirement $73,441,557 CV-F13 Base Resource Revenue Requirement $69,585,875 First Preference Revenue Requirement $3,855,682

84

Neutral particle beam intensity controller  

DOE Patents [OSTI]

The neutral beam intensity controller is based on selected magnetic defocusing of the ion beam prior to neutralization. The defocused portion of the beam is dumped onto a beam dump disposed perpendicular to the beam axis. Selective defocusing is accomplished by means of a magnetic field generator disposed about the neutralizer so that the field is transverse to the beam axis. The magnetic field intensity is varied to provide the selected partial beam defocusing of the ions prior to neutralization. The desired focused neutral beam portion passes along the beam path through a defining aperture in the beam dump, thereby controlling the desired fraction of neutral particles transmitted to a utilization device without altering the kinetic energy level of the desired neutral particle fraction. By proper selection of the magnetic field intensity, virtually zero through 100% intensity control of the neutral beam is achieved.

Dagenhart, W.K.

1984-05-29T23:59:59.000Z

85

Gamma radiation field intensity meter  

DOE Patents [OSTI]

A gamma radiation intensity meter measures dose rate of a radiation field. The gamma radiation intensity meter includes a tritium battery emitting beta rays generating a current which is essentially constant. Dose rate is correlated to an amount of movement of an electroscope element charged by the tritium battery. Ionizing radiation decreases the voltage at the element and causes movement. A bleed resistor is coupled between the electroscope support element or electrode and the ionization chamber wall electrode. 4 figs.

Thacker, L.H.

1995-10-17T23:59:59.000Z

86

Gamma radiation field intensity meter  

DOE Patents [OSTI]

A gamma radiation intensity meter measures dose rate of a radiation field. The gamma radiation intensity meter includes a tritium battery emitting beta rays generating a current which is essentially constant. Dose rate is correlated to an amount of movement of an electroscope element charged by the tritium battery. Ionizing radiation decreases the voltage at the element and causes movement. A bleed resistor is coupled between the electroscope support element or electrode and the ionization chamber wall electrode. 4 figs.

Thacker, L.H.

1994-08-16T23:59:59.000Z

87

Gamma radiation field intensity meter  

DOE Patents [OSTI]

A gamma radiation intensity meter measures dose rate of a radiation field. The gamma radiation intensity meter includes a tritium battery emitting beta rays generating a current which is essentially constant. Dose rate is correlated to an amount of movement of an electroscope element charged by the tritium battery. Ionizing radiation decreases the voltage at the element and causes movement. A bleed resistor is coupled between the electroscope support element or electrode and the ionization chamber wall electrode.

Thacker, Louis H. (Knoxville, TN)

1995-01-01T23:59:59.000Z

88

Gamma radiation field intensity meter  

DOE Patents [OSTI]

A gamma radiation intensity meter measures dose rate of a radiation field. The gamma radiation intensity meter includes a tritium battery emitting beta rays generating a current which is essentially constant. Dose rate is correlated to an amount of movement of an electroscope element charged by the tritium battery. Ionizing radiation decreases the voltage at the element and causes movement. A bleed resistor is coupled between the electroscope support element or electrode and the ionization chamber wall electrode.

Thacker, Louis H. (Knoxville, TN)

1994-01-01T23:59:59.000Z

89

The decline of the world’s energy intensity  

Science Journals Connector (OSTI)

Energy intensity of the total primary energy supply (TPES), total final energy consumption (TFC) and LOSSES in the conversion from TPES to TFC were analyzed for the World, OECD and Rest of the World (ROW) countries. LOSSES increased significantly for all groups of countries due to the increase of electricity production from coal in the period studied (1971–2008). Electricity share final consumption almost doubled, increasing from 8.8% to 17.2% in the period studied. However the energy intensity of LOSSES remained practically constant, which reflects the fact that the efficiency of electricity generation from coal (the main source of electricity) remained practically constant in that period. Despite the attractiveness of end-use devices running on electricity such as computers, which is typical of modern societies, the CO2 emissions are bound to increase unless coal is replaced by less carbon emitting sources such as natural gas, renewables and nuclear energy.

José Goldemberg; Luiz Tadêo Siqueira Prado

2011-01-01T23:59:59.000Z

90

PERIOD ERROR ESTIMATION FOR THE KEPLER ECLIPSING BINARY CATALOG  

SciTech Connect (OSTI)

The Kepler Eclipsing Binary Catalog (KEBC) describes 2165 eclipsing binaries identified in the 115 deg{sup 2} Kepler Field based on observations from Kepler quarters Q0, Q1, and Q2. The periods in the KEBC are given in units of days out to six decimal places but no period errors are provided. We present the PEC (Period Error Calculator) algorithm, which can be used to estimate the period errors of strictly periodic variables observed by the Kepler Mission. The PEC algorithm is based on propagation of error theory and assumes that observation of every light curve peak/minimum in a long time-series observation can be unambiguously identified. The PEC algorithm can be efficiently programmed using just a few lines of C computer language code. The PEC algorithm was used to develop a simple model that provides period error estimates for eclipsing binaries in the KEBC with periods less than 62.5 days: log {sigma}{sub P} Almost-Equal-To - 5.8908 + 1.4425(1 + log P), where P is the period of an eclipsing binary in the KEBC in units of days. KEBC systems with periods {>=}62.5 days have KEBC period errors of {approx}0.0144 days. Periods and period errors of seven eclipsing binary systems in the KEBC were measured using the NASA Exoplanet Archive Periodogram Service and compared to period errors estimated using the PEC algorithm.

Mighell, Kenneth J. [National Optical Astronomy Observatory, 950 North Cherry Avenue, Tucson, AZ 85719 (United States); Plavchan, Peter [NASA Exoplanet Science Institute, California Institute of Technology, Pasadena, CA 91125 (United States)

2013-06-15T23:59:59.000Z

91

Ball Packings with Periodic Constraints  

Science Journals Connector (OSTI)

We call a periodic ball packing in $$d$$d-dimensional Euclidean space periodically (resp. strictly) jammed with respect to a period lattice $$\\varLambda $$¿ if there are no nontrivial motions of the balls that preserve $$\\varLambda $$¿ (resp. that maintain ... Keywords: 52C17, Ball packings, Jamming, Periodic packings, Rigidity, Tensegrities

Robert Connelly, Jeffrey D. Shen, Alexander D. Smith

2014-12-01T23:59:59.000Z

92

Impact of varying storm intensity and consecutive dry days on grassland soil moisture  

Science Journals Connector (OSTI)

Intra-annual precipitation patterns are expected to shift toward more intense storms and longer dry periods due to changes in climate within the next decades. Using satellite-derived estimates of plant growth data combined with in situ ...

John D. Hottenstein; Guillermo E. Ponce-Campos; Julio Moguel-Yanes; M. Susan Moran

93

Changes in Energy Intensity 1985-1991  

Gasoline and Diesel Fuel Update (EIA)

Changes in Energy Intensity Changes in Energy Intensity 1985-1991 Overview Full Report The focus is on intensity of energy use measured by energy consumption relative to constant...

94

Ball Packings with Periodic Constraints  

E-Print Network [OSTI]

We call a periodic ball packing in d-dimensional Euclidean space periodically (strictly) jammed with respect to a period lattice if there are no nontrivial motions of the balls that preserve the period (that maintain some period with smaller or equal volume). In particular, we call a packing consistently periodically (strictly) jammed if it is periodically (strictly) jammed on every one of its periods. After extending a well-known bar framework and stress condition to strict jamming, we prove that a packing with period Lambda is consistently strictly jammed if and only if it is strictly jammed with respect to Lambda and consistently periodically jammed. We next extend a result about rigid unit mode spectra in crystallography to characterize periodic jamming on sublattices. After that, we prove that there are finitely many strictly jammed packings of m unit balls and other similar results. An interesting example shows that the size of the first sublattice on which a packing is first periodically unjammed is not bounded. Finally, we find an example of a consistently periodically jammed packing of low density \\delta = \\frac{4 \\pi}{6 \\sqrt{3} + 11} + \\epsilon ~ 0.59, where \\epsilon is an arbitrarily small positive number. Throughout the paper, the statements for the closely related notions of periodic infinitesimal rigidity and affine infinitesimal rigidity for tensegrity frameworks are also given.

Robert Connelly; Jeffrey D. Shen; Alexander D. Smith

2013-01-04T23:59:59.000Z

95

Ulysses observations of energetic ions over the south pole of the sun  

SciTech Connect (OSTI)

We present here observations of energetic ions during the following phases of the Ulysses prime mission: the first south polar pass, the low-latitude pass and part of the first north polar pass. Peaks are observed in the energetic ion intensity which recur either once per solar rotation during the ascent to high southern latitudes, or twice per rotation during the low latitude pass. The intensity of the peaks also rises with each major solar event, decaying slowly thereafter over a period of several rotations. The peaks are observed up to {approx}70 deg. during the ascent to high southern latitudes, but not seen again until around 45 deg. during the descent, this asymmetry most likely being caused by a decrease in the number of solar events.

Sanderson, T. R.; Bothmer, V.; Marsden, R. G.; Trattner, K. J.; Wenzel, K.-P.; Balogh, A.; Forsyth, R. J.; Goldstein, B. E. [Space Science Department of ESA, Estec, Noordwijk (Netherlands); Blackett Laboratory, Imperial College, London (United Kingdom); Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California (United States)

1996-07-20T23:59:59.000Z

96

Sample Observations from the 2001.Multi-Frequency Radar IOP  

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

Sample Observations from the 2001 Sample Observations from the 2001 Multi-Frequency Radar IOP C. R. Williams Cooperative Institute for Research in Environmental Sciences University of Colorado Boulder, Colorado C. R. Williams and K. S. Gage National Oceanic and Atmospheric Administration Aeronomy Laboratory Boulder, Colorado L. Leon and S. Cruz-Pol University of Puerto Rico Mayaguez Campus S. M. Sekelsky Microwave Remote Sensing Laboratory University of Massachusetts Amherst, Massachusetts Introduction The 2001 Multi-Frequency Radar Intensive Operational Period (IOP) was designed to collect a long dataset of W-band (95 GHz), Ka-band (35 GHz), and S-band (2.8 GHz) vertical profiling observations to investigate insect scattering and precipitating particle scattering above the Southern Great Plains

97

EIA - AEO2010 - Energy intensity trends in AEO2010  

Gasoline and Diesel Fuel Update (EIA)

intensity trends in AEO2010 intensity trends in AEO2010 Annual Energy Outlook 2010 with Projections to 2035 Figure 17. Trends in U.S. oil prices, energy consumption, and economic output, 1950-2035 Click to enlarge » Figure source and data excel logo Energy intensity trends in AEO2010 Energy intensity—energy consumption per dollar of real GDP—indicates how much energy a country uses to produce its goods and services. From the early 1950s to the early 1970s, U.S. total primary energy consumption and real GDP increased at nearly the same annual rate (Figure 17). During that period, real oil prices remained virtually flat. In contrast, from the mid-1970s to 2008, the relationship between energy consumption and real GDP growth changed, with primary energy consumption growing at less than one-third the previous average rate and real GDP growth continuing to grow at its historical rate. The decoupling of real GDP growth from energy consumption growth led to a decline in energy intensity that averaged 2.8 percent per year from 1973 to 2008. In the AEO2010 Reference case, energy intensity continues to decline, at an average annual rate of 1.9 percent from 2008 to 2035.

98

Intensive Skills Activities CAREERS SERVICE  

E-Print Network [OSTI]

in the state under the cover of night and in broad daylight, perhaps swimming in ship ballast water, tucked and the rest of the world focus more intensely on producing fuels and energy from grasses and other non to subscribe (it's free!), send a note to Futures Editor, 109 Agriculture Hall, Michigan State University, East

Bristol, University of

99

Neutral particle beam intensity controller  

DOE Patents [OSTI]

A neutral beam intensity controller is provided for a neutral beam generator in which a neutral beam is established by accelerating ions from an ion source into a gas neutralizer. An amplitude modulated, rotating magnetic field is applied to the accelerated ion beam in the gas neutralizer to defocus the resultant neutral beam in a controlled manner to achieve intensity control of the neutral beam along the beam axis at constant beam energy. The rotating magnetic field alters the orbits of ions in the gas neutralizer before they are neutralized, thereby controlling the fraction of neutral particles transmitted out of the neutralizer along the central beam axis to a fusion device or the like. The altered path or defocused neutral particles are sprayed onto an actively cooled beam dump disposed perpendicular to the neutral beam axis and having a central open for passage of the focused beam at the central axis of the beamline. Virtually zero therough 100% intensity control is achieved by varying the magnetic field strength without altering the ion source beam intensity or its species yield.

Dagenhart, William K. (Oak Ridge, TN)

1986-01-01T23:59:59.000Z

100

ARM - Mobile Aerosol Observing System  

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

FacilitiesMobile Aerosol Observing System FacilitiesMobile Aerosol Observing System AMF Information Science Architecture Baseline Instruments AMF1 AMF2 AMF3 Data Operations AMF Fact Sheet Images Contacts AMF Deployments Hyytiälä, Finland, 2014 Manacapuru, Brazil, 2014 Oliktok Point, Alaska, 2013 Los Angeles, California, to Honolulu, Hawaii, 2012 Cape Cod, Massachusetts, 2012 Gan Island, Maldives, 2011 Ganges Valley, India, 2011 Steamboat Springs, Colorado, 2010 Graciosa Island, Azores, 2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 Mobile Aerosol Observing System Intensive aerosol observations conducted on the campus of Brookhaven National Laboratory on Long Island, New York, using the ARM Mobile Aerosol Observing System. Intensive aerosol observations conducted on the campus of Brookhaven

Note: This page contains sample records for the topic "intensive observation period" 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

Neutrino physics with an intense \  

E-Print Network [OSTI]

We study some of the physics potential of an intense $1\\,\\mathrm{MCi}$ $^{51}\\mathrm{Cr}$ source combined with the {\\sc Majorana Demonstrator} enriched germanium detector array. The {\\sc Demonstrator} will consist of detectors with ultra-low radioactive backgrounds and extremely low energy thresholds of~$\\sim 400\\,\\mathrm{eV}$. We show that it can improve the current limit on the neutrino magnetic dipole moment. We briefly discuss physics applications of the charged-current reaction of the $^{51}\\mathrm{Cr} neutrino with the $^{73}\\mathrm{Ge} isotope. Finally, we argue that the rate from a realistic, intense tritium source is below the detectable limit of even a tonne-scale HPGe experiment

R. Henning

2010-11-16T23:59:59.000Z

102

The Near-infrared Period-luminosity Relations of Cepheids in the Large Magellanic Cloud  

E-Print Network [OSTI]

We present near-infrared (J & Ks) observations of Cepheids in the Large Magellanic Cloud. The goals of these observations are to better characterize the Cepheid Period-Luminosity relation at these wavelengths, especially for periods below 10 days...

Mahzooni, Salma

2011-08-08T23:59:59.000Z

103

Relationships between Tropical Cyclone Intensity and Eyewall Structure as Determined by Radial Profiles of Inner-Core Infrared Brightness Temperature  

Science Journals Connector (OSTI)

Radial profiles of infrared brightness temperature for 2405 different satellite observations from 14 western North Pacific tropical cyclones (TCs) from the 2012 season were analyzed and compared to intensity and changes in intensity. Four critical ...

Elizabeth R. Sanabia; Bradford S. Barrett; Caitlin M. Fine

2014-12-01T23:59:59.000Z

104

Light Intensity and the Nitrogen Hunger Period in the Manchu Soybean  

Science Journals Connector (OSTI)

...jars on a nitrogen-poor pit sand to which has been added an...hypothesis that an excessive carbo- hydrate balance in the plant is the...quantitative difference in the behavior of the controls in the two...these findings for theoretical phases of symbiotic nitrogen fixa...

E. B. Fred; P. W. Wilson; Orville Wyss

1938-01-01T23:59:59.000Z

105

Atmospheric Radiation Measurement (ARM) Data from Field Campaigns or Intensive Operational Periods (IOP)  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

The Office of Biological and Environmental Research in DOE's Office of Science is responsible for the ARM Program. The ARM Archive physically resides at the Oak Ridge National Laboratory.

106

Analysis and Decomposition of the Energy Intensity of Industries in  

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

and Decomposition of the Energy Intensity of Industries in and Decomposition of the Energy Intensity of Industries in California Title Analysis and Decomposition of the Energy Intensity of Industries in California Publication Type Journal Article Year of Publication 2012 Authors de la du Can, Stephane Rue, Ali Hasanbeigi, and Jayant A. Sathaye Journal Energy Policy Volume 46 Pagination 234-245 Keywords california, co2 emissions, energy intensity, energy use Abstract In 2008, the gross domestic product (GDP) of California industry was larger than GDP of industry in any other U.S. states. This study analyses the energy use of and output from seventeen industry subsectors in California and performs decomposition analysis to assess the influence of different factors on California industry energy use. The logarithmic mean Divisia index method is used for the decomposition analysis. The decomposition analysis results show that the observed reduction of energy use in California industry since 2000 is the result of two main factors: the intensity effect and the structural effect. The intensity effect has started pushing final energy use downward in 2000 and has since amplified. The second large effect is the structural effect. The significant decrease of the energy-intensive "Oil and Gas Extraction" subsector's share of total industry value added, from 15% in 1997 to 5% in 2008, and the increase of the non-energy intensive "Electric and electronic equipment manufacturing" sector's share of value added, from 7% in 1997 to 30% in 2008, both contributed to a decrease in the energy intensity in the industry sector

107

MHD Simulations of Accretion onto Sgr A*: Quiescent Fluctuations, Outbursts, and Quasi-Periodicity  

E-Print Network [OSTI]

High resolution observations of Sgr A* have revealed a wide variety of phenomena, ranging from intense rapid flares to quasi-periodic oscillations, making this object an ideal system to study the properties of low luminosity accreting black holes. In this paper, we use a pseudo-spectral algorithm to construct and evolve a three-dimensional magnetohydrodynamic model of the accretion disk in Sgr A*. Assuming a hybrid thermal-nonthermal emission scheme, we show that the MHD turbulence can by itself only produce factor of two fluctuations in luminosity. These amplitudes in variation cannot explain the magnitude of flares observed in this system. However, we also demonstrate that density perturbations in the disk do produce outbursts qualitatively similar to those observed by XMM-Newton in X-rays and ground-based facilities in the near infrared. Quasi-periodic oscillations emerge naturally in the simulated lightcurves. We attribute these to non-axisymmetric density perturbations that emerge as the disk evolves back toward its quiescent state.

Chi-kwan Chan; Siming Liu; Christopher L. Fryer; Dimitrios Psaltis; Feryal Ozel; Gabriel Rockefeller; Fulvio Melia

2006-11-08T23:59:59.000Z

108

Handbook of Pediatric Intensive Care  

Science Journals Connector (OSTI)

...objectionable, but I found that it streamlined the text. This handbook is useful in at least two ways. First, it can serve as a mini-textbook on pediatric intensive care. It is not meant to be a substitute for any of the major works in the field, but it does provide enough information for the reader to gain more... In caring for critically ill children, the demands on one's time are great, and there is often little time left for reading. Although there are a number of excellent, comprehensive books on pediatric critical care that must be read by those in the field, ...

Trager J.D.K.

1996-01-25T23:59:59.000Z

109

Relationships between tropical cyclone intensity and satellite based indicators of inner core convection: 85 GHz ice scattering signature and lightning  

E-Print Network [OSTI]

indirectly, using satellite-borne observations of the scattering of upwelling microwave radiation by precipitation sized ice and satellite-borne observations of lightning. The observations are then compared to tropical cyclone intensity and the resulting...

Cecil, Daniel Joseph

2012-06-07T23:59:59.000Z

110

Iron and Steel Energy Intensities  

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

If you are having trouble, call 202-586-8800 for help. Home > >Energy Users > Energy Efficiency Page > Iron and Steel Energy Intensities First Use of Energy Blue Bullet First Use/Value of Production Blue Bullet First Use/Ton of steel End Uses of Consumption Blue Bullet Total End Use/Value of Production Blue Bullet Total End Use/Ton of Steel Boiler Fuel as End Use Blue Bullet Boiler Fuel /Value of Production Blue Bullet Boiler Fuel /Ton of Steel Process Heating as End Use Blue Bullet Process Heating Fuel /Ton of Steel Blue Bullet Process Heating /Value of Production Machine Drive as End Use Blue Bullet Machine Drive Fuel/Ton of Steel Blue Bullet Machine Drive Fuel /Value of Production Expenditures Blue Bullet Purchased Fuel /Ton of Steel Blue Bullet Purchased Fuel /Value of Production

111

Energy Intensity Baselining and Tracking Guidance  

Broader source: Energy.gov [DOE]

The Energy Intensity Baselining and Tracking Guidance for the Better Buildings, Better Plants Program helps companies meet the program’s reporting requirements by describing the steps necessary to develop an energy consumption and energy intensity baseline and calculating consumption and intensity changes over time.

112

Periodic  

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

04 04 by C.G. Wohl (LBNL). Adapted from the Commission of Atomic Weights and Isotopic Abundances, "Atomic Weights of the Elements 1995," Pure and Applied Chemistry 68, 2339 (1996), and G. Audi and A.H. Wapstra, "The 1993 Mass Evaluation," Nucl. Phys. A565, 1 (1993). The atomic number (top left) is the number of protons in the nucleus. The atomic mass (bottom) is weighted by isotopic abundances in the Earth's surface. For a new determination of atomic masses, not weighted by abundances, see G. Audi, A.H. Wapstra, and C. Thibault, Nucl. Phys. A729, 337 (2003). Atomic masses are relative to the mass of the carbon-12 isotope, defined to be exactly 12 unified atomic mass units (u). Errors range from 1 to 9 in the last digit quoted. Relative isotopic abundances often vary considerably, both in natural and commercial samples. A number in parentheses is the mass of the longest-lived

113

Light intensity and temperature regulate petiole elongation by controlling the content of and sensitivity to gibberellin in Cyclamen persicum  

Science Journals Connector (OSTI)

This study was carried out to investigate the responses of cyclamen to gibberellic acids (GAs) and GA biosynthesis inhibitors under different temperature and light intensity during different period, and then t...

Wook Oh; Ki Sun Kim

2014-06-01T23:59:59.000Z

114

Macroscopic observables  

SciTech Connect (OSTI)

We study macroscopic observables defined as the total value of a physical quantity over a collection of quantum systems. We show that previous results obtained for an infinite ensemble of identically prepared systems lead to incorrect conclusions for finite ensembles. In particular, exact measurement of a macroscopic observable significantly disturbs the state of any finite ensemble. However, we show how this disturbance can be made arbitrarily small when the measurements are of finite accuracy. We demonstrate a general trade-off between state disturbance and measurement coarseness as a function of the size of the ensemble. Using this trade-off, we show that the histories generated by any sequence of finite accuracy macroscopic measurements always generate a consistent family in the absence of large-scale entanglement for sufficiently large ensembles. Hence, macroscopic observables behave 'classically' provided that their accuracy is coarser than the quantum correlation length scale of the system. The role of these observable is also discussed in the context of NMR quantum information processing and bulk ensemble quantum state tomography.

Poulin, David [Perimeter Institute for Theoretical Physics, Waterloo, Ontario, N2L 2Y5 (Canada); Institute for Quantum Computing, University of Waterloo, Waterloo, Ontario N2L 3G1 (Canada); Department of Physics, University of Waterloo, Waterloo, Ontario N2L 3G1 (Canada)

2005-02-01T23:59:59.000Z

115

Macroscopic observables  

Science Journals Connector (OSTI)

We study macroscopic observables defined as the total value of a physical quantity over a collection of quantum systems. We show that previous results obtained for an infinite ensemble of identically prepared systems lead to incorrect conclusions for finite ensembles. In particular, exact measurement of a macroscopic observable significantly disturbs the state of any finite ensemble. However, we show how this disturbance can be made arbitrarily small when the measurements are of finite accuracy. We demonstrate a general trade-off between state disturbance and measurement coarseness as a function of the size of the ensemble. Using this trade-off, we show that the histories generated by any sequence of finite accuracy macroscopic measurements always generate a consistent family in the absence of large-scale entanglement for sufficiently large ensembles. Hence, macroscopic observables behave “classically” provided that their accuracy is coarser than the quantum correlation length scale of the system. The role of these observable is also discussed in the context of NMR quantum information processing and bulk ensemble quantum state tomography.

David Poulin

2005-02-07T23:59:59.000Z

116

CHEM 740: ENERGIES, INTENSITIES AND POTENTIALS: CONCEPTS AND TOOLS IN SPECTROSCOPY  

E-Print Network [OSTI]

1 CHEM 740: ENERGIES, INTENSITIES AND POTENTIALS: CONCEPTS AND TOOLS IN SPECTROSCOPY Fall 2001 Instructor: R.J. Le Roy Wednesday Evenings The patterns of energy levels and transition intensities observed energy curves or surfaces characterizing the forces between the component atoms. This course will discuss

Le Roy, Robert J.

117

Performance Period Total Fee Paid  

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

Period Period Total Fee Paid 4/29/2012 - 9/30/2012 $418,348 10/1/2012 - 9/30/2013 $0 10/1/2013 - 9/30/2014 $0 10/1/2014 - 9/30/2015 $0 10/1/2015 - 9/30/2016 $0 Cumulative Fee Paid $418,348 Contract Type: Cost Plus Award Fee Contract Period: $116,769,139 November 2011 - September 2016 $475,395 $0 Fee Information Total Estimated Contract Cost $1,141,623 $1,140,948 $1,140,948 $5,039,862 $1,140,948 Maximum Fee $5,039,862 Minimum Fee Fee Available Portage, Inc. DE-DT0002936 EM Contractor Fee Site: MOAB Uranium Mill Tailings - MOAB, UT Contract Name: MOAB Uranium Mill Tailings Remedial Action Contract September 2013 Contractor: Contract Number:

118

Energy Intensity Baselining and Tracking Guidance  

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

Learn more at betterbuildings.energy.gov Energy Intensity Baselining and Tracking Guidance i Preface The U.S. Department of Energy's (DOE) Better Buildings, Better Plants Program...

119

Periodic ripples in suspended graphene  

Science Journals Connector (OSTI)

We study the mechanism of wrinkling of suspended graphene, by means of atomistic simulations. We argue that the structural instability under edge compression is the essential physical reason for the formation of periodic ripples in graphene. The ripple wavelength and out-of-plane amplitude are found to obey 1/4-power scaling laws with respect to edge compression. Our results also show that parallel displacement of the clamped boundaries can induce periodic ripples, with oscillation amplitude roughly proportional to the 1/4 power of edge displacement.

Zhao Wang and Michel Devel

2011-03-23T23:59:59.000Z

120

World Best Practice Energy Intensity Values for Selected Industrial Sectors  

E-Print Network [OSTI]

world best practice energy intensity values for productionWorld best practice energy intensity values for productionWorld Best Practice Final Energy Intensity Values for Aluminium Production (

Worrell, Ernst; Price, Lynn; Neelis, Maarten; Galitsky, Christina; Zhou, Nan

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "intensive observation period" 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

World Best Practice Energy Intensity Values for Selected Industrial Sectors  

E-Print Network [OSTI]

Best Practice Final Energy Intensity Values for Stand-AloneBest Practice Final Energy Intensity Values for Stand-AloneBest Practice Primary Energy Intensity Values for Stand-

Worrell, Ernst; Price, Lynn; Neelis, Maarten; Galitsky, Christina; Zhou, Nan

2007-01-01T23:59:59.000Z

122

The Role of Atmospheric Conditions in Determining Intensity of Crepuscular and Anticrepuscular Rays  

Science Journals Connector (OSTI)

During the summer of 2006, daily observations of crepuscular and anticrepuscular rays were made around sunset from central Oklahoma. A relative scale of ray intensity was developed and used to relate the rays to concurrent meteorological ...

Matthew S. Van Den Broeke; William H. Beasley; Michael B. Richman

2010-07-01T23:59:59.000Z

123

Distinguishing the Cold Conveyor Belt and Sting Jet Airstreams in an Intense Extratropical Cyclone  

Science Journals Connector (OSTI)

Strong winds equatorward and rearward of a cyclone core have often been associated with two phenomena: the cold conveyor belt (CCB) jet and sting jets. Here, detailed observations of the mesoscale structure in this region of an intense cyclone are ...

Oscar Martínez-Alvarado; Laura H. Baker; Suzanne L. Gray; John Methven; Robert S. Plant

2014-08-01T23:59:59.000Z

124

Reproductive response of gray and fox squirrels to intensive harvesting  

E-Print Network [OSTI]

for the changes observed. Mast production indices indicated a poor acorn crop during the fall that experimental hunting pressure treatments began, implying that both species of squirrels responded more strongly to mast production than to intensive hunting... 15, 648 in 1957 to 7, 564 in 1958. Mosby ( 1969) compared life tables of 2 woodlot populations of gray squirrels in Virginia, only l of which was hunted. The average rate of exploitation in the hunted study area was 37. 4& of the fall population...

Davis, Charles Edward

2012-06-07T23:59:59.000Z

125

Intense Muon Physics Working Group Summary  

E-Print Network [OSTI]

The intense muon beams which will be available at a neutrino factory provide a unique opportunity for searching for physics beyond the standard model, both in lepton flavor violation and in the search for a permanent electric dipole moment for the muon. Other experiments which can use intense muon beams will also be possible.

B. Lee Roberts; Marco Grassi; Akira Sato

2005-10-20T23:59:59.000Z

126

Description of Energy Intensity Tables (12)  

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

3. Description of Energy Intensity Data Tables 3. Description of Energy Intensity Data Tables There are 12 data tables used as references for this report. Specifically, these tables are categorized as tables 1 and 2 present unadjusted energy-intensity ratios for Offsite-Produced Energy and Total Inputs of Energy for 1985, 1988, 1991, and 1994; along with the percentage changes between 1985 and the three subsequent years (1988, 1991, and 1994) tables 3 and 4 present 1988, 1991, and 1994 energy-intensity ratios that have been adjusted to the mix of products shipped from manufacturing establishments in 1985 tables 5 and 6 present unadjusted energy-intensity ratios for Offsite-Produced Energy and Total Inputs of Energy for 1988, 1991, and 1994; along with the percentage changes between 1988 and the two subsequent

127

Metal reflectivity under high?intensity optical radiation  

Science Journals Connector (OSTI)

Single high?intensity (106?109 W/cm2) pulses of 1.06?? radiation emitted from a Q?switched Nd : YAG laser have been used to study reflectivity behavior of single?crystal copper and tantalum samples. Metalreflectivity during irradiation undergoes a significant drop to values much lower than can be attributed to high?temperature effects. This reflectivity drop under high radiation intensity has two characteristic features. First if vaporization is avoided then during the rising portion of the laser pulse the reflectivity drops continuously until it reaches a constant low value. For copper this occurs at an intensity of 3×108 W/cm2 and has a reflectivity value of ?0.64. The corresponding values for tantalum are I?2.5×107 W/cm2 and R?0.41. For still higher intensities a further drop in reflectivity beyond the plateau region is observed. This drop in reflectivity is always accompanied by heavy melting and followed by some vaporization. As suggested by Prokhorov e t a l. this further drop in reflectivity could be associated with dielectriclike behavior of the molten zone.

T. E. Zavecz; M. A. Saifi; M. Notis

1975-01-01T23:59:59.000Z

128

The orbital period distribution of subdwarf B binaries  

E-Print Network [OSTI]

We present the results of a 3.5 year long campaign to measure orbital periods of subdwarf B (sdB) star binaries. We directly compare our observed orbital period distribution with that predicted by using binary population synthesis. Up to now, most of our systems seem to have been formed through two of the formation channels discussed by Han et al.(2003), i.e. the first and the second common envelope ejection (CE) channels. At this point, thanks to the long baseline of our observations, we are starting to detect also very long orbital period systems. These have probably come from a complete different formation path, the first stable Roche Lobe overflow (RLOF) channel in which the first mass transfer phase is stable. This channel is expected to lead to the formation of very wide binaries with orbital periods ranging between 0.5 to 2000 days.

L. Morales-Rueda; P. F. L. Maxted; T. R. Marsh

2003-09-03T23:59:59.000Z

129

Down hole periodic seismic generator  

DOE Patents [OSTI]

A down hole periodic seismic generator system for transmitting variable frequency, predominantly shear-wave vibration into earth strata surrounding a borehole. The system comprises a unitary housing operably connected to a well head by support and electrical cabling and contains clamping apparatus for selectively clamping the housing to the walls of the borehole. The system further comprises a variable speed pneumatic oscillator and a self-contained pneumatic reservoir for producing a frequency-swept seismic output over a discrete frequency range.

Hardee, Harry C. (Albuquerque, NM); Hills, Richard G. (Las Cruces, NM); Striker, Richard P. (Albuquerque, NM)

1989-01-01T23:59:59.000Z

130

Advanced downhole periodic seismic generator  

DOE Patents [OSTI]

An advanced downhole periodic seismic generator system for transmitting variable frequency, predominantly shear-wave vibration into earth strata surrounding a borehole. The system comprises a unitary housing operably connected to a well head by support and electrical cabling and contains clamping apparatus for selectively clamping the housing to the walls of the borehole. The system further comprises a variable speed pneumatic oscillator and a self-contained pneumatic reservoir for producing a frequency-swept seismic output over a discrete frequency range.

Hardee, Harry C. (Albuquerque, NM); Hills, Richard G. (Las Cruces, NM); Striker, Richard P. (Albuquerque, NM)

1991-07-16T23:59:59.000Z

131

ARM - Field Campaign - Observations and Modeling of the Green Ocean Amazon:  

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

Sounding Enhancement Sounding Enhancement Related Campaigns Observations and Modeling of the Green Ocean Amazon (GOAMAZON 2014) 2014.01.01, Martin, AMF Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Observations and Modeling of the Green Ocean Amazon: Sounding Enhancement 2014.02.01 - 2014.10.31 Lead Scientist : Courtney Schumacher Description The scientific focus of this campaign is to provide higher temporal sampling of the vertical structure of the atmosphere during the two intensive observing periods (IOPs) of GOAmazon2014. The AMF1 is currently funded to launch 4 sondes/day for all of 2014 (i.e., 2 am, 8 am, 2 pm, and 8 pm LT), however, rapid changes in boundary layer and free tropospheric temperature, humidity, and wind profiles happen throughout the diurnal

132

An Autonomous Adaptive Scheduling Agent for Period Searching  

E-Print Network [OSTI]

We describe the design and implementation of an autonomous adaptive software agent that addresses the practical problem of observing undersampled, periodic, time-varying phenomena using a network of HTN-compliant robotic telescopes. The algorithm governing the behaviour of the agent uses an optimal geometric sampling technique to cover the period range of interest, but additionally implements proactive behaviour that maximises the optimality of the dataset in the face of an uncertain and changing operating environment.

Eric S. Saunders; Tim Naylor; Alasdair Allan

2008-01-24T23:59:59.000Z

133

Impact Factors of Energy Intensity in China  

E-Print Network [OSTI]

Energy intensity reflects energy usage efficiency in the production and consumption process, and leads to carbon dioxide emissions and the energy security of an economy. Liao et al. (2007) analyzed factors contribute to the fluctuation of China’s energy intensity from 1997 to 2006, and found that efficiency effects and structural effects are the major impacting factors. Therefore, they suggested that China should attach more importance to optimizing its sectoral structure, and lowering its investment ratio in the future. However, economic development and energy intensity are influenced by many factors. In their research, Liao et al. (2007) omitted some important contributing factors to energy intensities, and their suggestions also had some practical limitations. First of all, Liao et al. (2007) did not analyze impacts from energy prices in energy usage efficiency. In the existing literature, Birol and Keppler (2000) applied economics theory and suggested that higher energy prices can induce the improvements in energy usage efficiency, thereby lowering energy intensity. Hang and Tu (2007) studied the influence of energy price on the Chinese economy's energy intensity and their empirical results also showed that higher energy prices can lower energy intensity. Because energy prices have been regulated by the

unknown authors

134

Techniques for optically compressing light intensity ranges  

DOE Patents [OSTI]

A pin hole camera assembly for use in viewing an object having a relatively large light intensity range, for example a crucible containing molten uranium in an atomic vapor laser isotope separator (AVLIS) system is disclosed herein. The assembly includes means for optically compressing the light intensity range appearing at its input sufficient to make it receivable and decipherable by a standard video camera. A number of different means for compressing the intensity range are disclosed. These include the use of photogray glass, the use of a pair of interference filters, and the utilization of a new liquid crystal notch filter in combination with an interference filter.

Rushford, Michael C. (Livermore, CA)

1989-01-01T23:59:59.000Z

135

Techniques for optically compressing light intensity ranges  

DOE Patents [OSTI]

A pin hole camera assembly for use in viewing an object having a relatively large light intensity range, for example a crucible containing molten uranium in an atomic vapor laser isotope separator (AVLIS) system is disclosed herein. The assembly includes means for optically compressing the light intensity range appearing at its input sufficient to make it receivable and decipherable by a standard video camera. A number of different means for compressing the intensity range are disclosed. These include the use of photogray glass, the use of a pair of interference filters, and the utilization of a new liquid crystal notch filter in combination with an interference filter. 18 figs.

Rushford, M.C.

1989-03-28T23:59:59.000Z

136

Building dependability arguments for software intensive systems  

E-Print Network [OSTI]

A method is introduced for structuring and guiding the development of end-to-end dependability arguments. The goal is to establish high-level requirements of complex software-intensive systems, especially properties that ...

Seater, Robert Morrison

2009-01-01T23:59:59.000Z

137

Computational phase imaging based on intensity transport  

E-Print Network [OSTI]

Light is a wave, having both an amplitude and a phase. However, optical frequencies are too high to allow direct detection of phase; thus, our eyes and cameras see only real values - intensity. Phase carries important ...

Waller, Laura A. (Laura Ann)

2010-01-01T23:59:59.000Z

138

Modelling patient states in intensive care patients  

E-Print Network [OSTI]

Extensive bedside monitoring in hospital Intensive Care Units (ICU) has resulted in a deluge of information on patient physiology. Consequently, clinical decision makers have to reason with data that is simultaneously large ...

Kshetri, Kanak Bikram

2011-01-01T23:59:59.000Z

139

Transport of elliptic intense charged -particle beams  

E-Print Network [OSTI]

The transport theory of high-intensity elliptic charged-particle beams is presented. In particular, the halo formation and beam loss problem associated with the high space charge and small-aperture structure is addressed, ...

Zhou, J. (Jing), 1978-

2006-01-01T23:59:59.000Z

140

Technical Change, Investment and Energy Intensity  

E-Print Network [OSTI]

This paper analyzes the role of different components of technical change on energy intensity by applying a Translog variable cost function setting to the new EU KLEMS dataset for 3 selected EU countries (Italy, Finland and ...

Kratena, Kurt

Note: This page contains sample records for the topic "intensive observation period" 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

Sustaining Performance Improvements in Energy Intensive Industries  

E-Print Network [OSTI]

Experience has shown that significant opportunity for performance improvements exists in energy intensive operations. Often, efforts to improve efficiency focus on vendor-led initiatives to improve operations of particular equipment. This approach...

Moore, D. A.

2005-01-01T23:59:59.000Z

142

Absolute vs. intensity-based emission caps  

E-Print Network [OSTI]

Cap-and-trade systems limit emissions to some pre-specified absolute quantity. Intensity-based limits, that restrict emissions to some pre-specified rate relative to input or output, are much more widely used in environmental ...

Ellerman, A. Denny.

143

Advanced Jones calculus for the classification of periodic metamaterials  

Science Journals Connector (OSTI)

By relying on an advanced Jones calculus, we analyze the polarization properties of light upon propagation through metamaterial slabs in a comprehensive manner. Based on symmetry considerations, we show that all periodic metamaterials may be divided into five different classes only. It is shown that each class differently affects the polarization of the transmitted light and sustains different eigenmodes. We show how to deduce these five classes from symmetry considerations and provide a simple algorithm that can be applied to decide to which class a given metamaterial belongs by measuring only the transmitted intensities.

Christoph Menzel; Carsten Rockstuhl; Falk Lederer

2010-11-15T23:59:59.000Z

144

Laser intensity effects in noncommutative QED  

E-Print Network [OSTI]

We discuss a two-fold extension of QED assuming the presence of strong external fields provided by an ultra-intense laser and noncommutativity of spacetime. While noncommutative effects leave the electron's intensity induced mass shift unchanged, the photons change significantly in character: they acquire a quasi-momentum that is no longer light-like. We study the consequences of this combined noncommutative strong-field effect for basic lepton-photon interactions.

Thomas Heinzl; Anton Ilderton; Mattias Marklund

2010-02-17T23:59:59.000Z

145

Commissioning of intensity modulated neutron radiotherapy (IMNRT)  

SciTech Connect (OSTI)

Purpose: Intensity modulated neutron radiotherapy (IMNRT) has been developed using inhouse treatment planning and delivery systems at the Karmanos Cancer Center/Wayne State University Fast Neutron Therapy facility. The process of commissioning IMNRT for clinical use is presented here. Results of commissioning tests are provided including validation measurements using representative patient plans as well as those from the TG-119 test suite. Methods: IMNRT plans were created using the Varian Eclipse optimization algorithm and an inhouse planning system for calculation of neutron dose distributions. Tissue equivalent ionization chambers and an ionization chamber array were used for point dose and planar dose distribution comparisons with calculated values. Validation plans were delivered to water and virtual water phantoms using TG-119 measurement points and evaluation techniques. Photon and neutron doses were evaluated both inside and outside the target volume for a typical IMNRT plan to determine effects of intensity modulation on the photon dose component. Monitor unit linearity and effects of beam current and gantry angle on output were investigated, and an independent validation of neutron dosimetry was obtained. Results: While IMNRT plan quality is superior to conventional fast neutron therapy plans for clinical sites such as prostate and head and neck, it is inferior to photon IMRT for most TG-119 planning goals, particularly for complex cases. This results significantly from current limitations on the number of segments. Measured and calculated doses for 11 representative plans (six prostate/five head and neck) agreed to within -0.8 {+-} 1.4% and 5.0 {+-} 6.0% within and outside the target, respectively. Nearly all (22/24) ion chamber point measurements in the two phantom arrangements were within the respective confidence intervals for the quantity [(measured-planned)/prescription dose] derived in TG-119. Mean differences for all measurements were 0.5% (max = 7.0%) and 1.4% (max = 4.1%) in water and virtual water, respectively. The mean gamma pass rate for all cases was 92.8% (min = 88.6%). These pass rates are lower than typically achieved with photon IMRT, warranting development of a planar dosimetry system designed specifically for IMNRT and/or the improvement of neutron beam modeling in the penumbral region. The fractional photon dose component did not change significantly in a typical IMNRT plan versus a conventional fast neutron therapy plan, and IMNRT delivery is not expected to significantly alter the RBE. All other commissioning results were considered satisfactory for clinical implementation of IMNRT, including the external neutron dose validation, which agreed with the predicted neutron dose to within 1%. Conclusions: IMNRT has been successfully commissioned for clinical use. While current plan quality is inferior to photon IMRT, it is superior to conventional fast neutron therapy. Ion chamber validation results for IMNRT commissioning are also comparable to those typically achieved with photon IMRT. Gamma pass rates for planar dose distributions are lower than typically observed for photon IMRT but may be improved with improved planar dosimetry equipment and beam modeling techniques. In the meantime, patient-specific quality assurance measurements should rely more heavily on point dose measurements with tissue equivalent ionization chambers. No significant technical impediments are anticipated in the clinical implementation of IMNRT as described here.

Burmeister, Jay; Snyder, Michael [Karmanos Cancer Center, Wayne State University School of Medicine, Detroit, Michigan 48201 (United States); Spink, Robyn; Liang Liang; Bossenberger, Todd; Halford, Robert [Karmanos Cancer Center, Detroit, Michigan 48201 (United States); Brandon, John [Michigan State University, East Lansing, Michigan 48201 (United States); Delauter, Jonathan [Wayne State University School of Medicine, Detroit, Michigan 48201 (United States)

2013-02-15T23:59:59.000Z

146

Fundamental physics on natures of the macroscopic vacuum under high intense electromagnetic fields with accelerators  

E-Print Network [OSTI]

High intense electromagnetic fields can be unique probes to study natures of macroscopic vacua by themselves. Combining accelerators with the intense field can provide more fruitful probes which can neither be achieved by only intense fields nor only high energy accelerators. We will overview the natures of vacua which can be accessible via intense laser-laser and intense laser-electron interactions. In the case of the laser-laser interaction, we propose how to observe nonlinear QED effects and effects of new fields like light scalar and pseudo scalar fields which may contribute to a macroscopic nature of our universe such as dark energy. In the case of the laser-electron interaction, in addition to nonlinear QED effects, we can further discuss the nature of accelerating field in the vacuum where we can access physics related with event horizons such as Hawking-Unruh radiations. We will introduce a recent experimental trial to search for this kind of odd radiations.

Kensuke Homma

2009-11-30T23:59:59.000Z

147

On community acquired infections requiring intensive care.  

E-Print Network [OSTI]

??Acute bacterial meningitis (ABM), influenza, and necrotizing soft-tissue infections (NSTIs) are diseases that in a short period of time can progress to become life threatening.… (more)

Brink, Magnus

2015-01-01T23:59:59.000Z

148

New subdwarf B star periods  

E-Print Network [OSTI]

Subdwarf B (sdB) stars are thought to be helium burning stars with low mass hydrogen envelopes. Several evolutionary paths have been proposed to explain the formation of these systems. One of these scenarios is the evolution of the sdB progenitor within a binary system. We have looked systematically at bright sdB stars from the PG survey. By taking spectra at several different epochs we have measured the radial velocity shifts caused by the motion of the sdB star within the binary. Our data have been taken over a long time base line (2 years) which allowed us to find longer period binaries than known before. Here we present results for 29 sdB systems.

L. Morales-Rueda; P. F. L. Maxted; T. R. Marsh; R. C. North

2002-09-26T23:59:59.000Z

149

Population trapping in Kr and Xe in intense laser fields  

Science Journals Connector (OSTI)

We have observed trapping of population in Rydberg states of atoms and ions exposed to intense laser radiation. The trapping occurs in nonstationary ‘‘wave-packet’’ superposition states, created, via ac Stark-shifted multiphoton resonances during the laser pulse. The formation of these highly excited bound states requires the nonresonant absorption of up to 20 or more photons; some of the ionic Rydberg states lie nearly 32 eV above the ionic ground state. All of the trapped states having binding energies much less than the photon energy but remain stable against ionization even when the multiphoton ionization probability of the atom is saturated.

R. R. Jones; D. W. Schumacher; P. H. Bucksbaum

1993-01-01T23:59:59.000Z

150

Self-focusing, channel formation, and high-energy ion generation in interaction of an intense short laser pulse with a He jet  

E-Print Network [OSTI]

Self-focusing, channel formation, and high-energy ion generation in interaction of an intense short of interaction of a relativistically intense 4-TW, 400-fs laser pulse with a He gas jet. We observe a stable data, we reconstructed the axial profile of laser channel and on-axis laser intensity. The estimated

Umstadter, Donald

151

Spiking mode operation for a uniform-period wiggler  

SciTech Connect (OSTI)

The onset of saturation in a uniform-period wiggler has been examined experimentally and through numerical simulations. Models have been constructed that explain the observations in simple and consistent ways. The models are based upon the development of strong frequency and amplitude modulation of the optical wave as a way to increase extraction efficiency and optical power.

Warren, R.W.; Goldstein, J.C.; Newnam, B.E.

1985-01-01T23:59:59.000Z

152

Future High-Intensity Proton Accelerators  

E-Print Network [OSTI]

This paper provides an overview of currently planned high-intensity proton accelerators. While for high energies (>10GeV) synchrotrons remain the preferred tools to produce high-intensity beams, recent years have seen an impressive development of linac-based lower-energy (intensity proton drivers for spallation sources, accelerator driven systems (ADS), production of Radioactive Ion Beams (RIB) and various neutrino applications (beta-beam, superbeam, neutrino factory). This paper discusses the optimum machine types for the various beam requirements and uses a range of projects, which are likely to be realised within the coming decade, to illustrate the different approaches to reach high average beam power with the application-specific time structure. Only machines with a beam power above 100kW are considered.

Gerigk, F

2007-01-01T23:59:59.000Z

153

Short rise time intense electron beam generator  

DOE Patents [OSTI]

A generator for producing an intense relativisitc electron beam having a subnanosecond current rise time includes a conventional generator of intense relativistic electrons feeding into a short electrically conductive drift tube including a cavity containing a working gas at a low enough pressure to prevent the input beam from significantly ionizing the working gas. Ionizing means such as a laser simultaneously ionize the entire volume of working gas in the cavity to generate an output beam having a rise time less than one nanosecond.

Olson, C.L.

1984-03-16T23:59:59.000Z

154

Analysis of the Energy Intensity of Industries in California  

E-Print Network [OSTI]

the aggregate energy-intensity of industry. Applied Energyindustries with final energy intensities of 12.3 Billion BtuAs mentioned, the energy intensity of this sector is much

Can, Stephane de la Rue du

2014-01-01T23:59:59.000Z

155

Electron cloud observations : a retrospective.  

SciTech Connect (OSTI)

A growing number of observations of electron cloud effects (ECEs) have been reported in positron and proton rings. Low-energy, background electrons ubiquitous in high-intensity particle accelerators. Amplification of electron cloud (EC) can occur under certain operating conditions, potentially giving rise to numerous effects that can seriously degrade accelerator performance. EC observations and diagnostics have contributed to a better understanding of ECEs, in particular, details of beam-induced multipacting and cloud saturation effects. Such experimental results can be used to provide realistic limits on key input parameters for modeling efforts and analytical calculations to improve prediction capability. Electron cloud effects are increasingly important phenomena in high luminosity, high brightness, or high intensity machines - Colliders, Storage rings, Damping rings, Heavy ion beams. EC generation and instability modeling increasingly complex and benchmarked against in situ data: {delta}, {delta}{sub 0}, photon reflectivity, and SE energy distributions important. Surface conditioning and use of solenoidal windings in field-free regions are successful cures: will they be enough? What are new observations and how do they contribute to body of work and understanding physics of EC?

Harkay, K.; Accelerator Systems Division (APS)

2004-01-01T23:59:59.000Z

156

Intense emission of cluster anions from gold targets under impact of keV/u gold clusters.  

E-Print Network [OSTI]

Intense emission of cluster anions from gold targets under impact of keV/u gold clusters. M the emission yield of anionic clusters increases much faster with n than expected from simple proportionality. Accordingly, the most intense emission is observed for Au7 - : under Au9 + impact the Au7 - yield per incident

Boyer, Edmond

157

2014 call for NERSC's Data Intensive Computing Pilot Program...  

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

NERSC's Data Intensive Computing Pilot Program 2014 call for NERSC's Data Intensive Computing Pilot Program Due December 10 November 18, 2013 by Francesca Verdier (0 Comments)...

158

ITP Energy Intensive Processes: Improved Heat Recovery in Biomass...  

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

Energy Intensive Processes: Improved Heat Recovery in Biomass-Fired Boilers ITP Energy Intensive Processes: Improved Heat Recovery in Biomass-Fired Boilers biomass-firedboilers.pd...

159

ARM - Evaluation Product - MFRSR-Column Intensive Properties  

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

Product : MFRSR-Column Intensive Properties The MFRSR-Column Intensive Properties (CIP) value-added product (VAP) has been developed for estimating the microphysical (e.g.,...

160

Strategies for the Commercialization & Deployment of GHG Intensity...  

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

Strategies for the Commercialization & Deployment of GHG Intensity-Reducing Technologies & Practices Strategies for the Commercialization & Deployment of GHG Intensity-Reducing...

Note: This page contains sample records for the topic "intensive observation period" 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

2nd conference on Intense field- Short Wavelength Atomic and...  

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

nd conference on Intense field- Short Wavelength Atomic and Molecular Processes - ISWAMP2 2nd conference on Intense field- Short Wavelength Atomic and Molecular Processes - ISWAMP2...

162

Reducing Industrial Energy Intensity in the Southeast Project...  

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

Industrial Energy Intensity in the Southeast Project Fact Sheet Reducing Industrial Energy Intensity in the Southeast Project Fact Sheet This fact sheet contains details regarding...

163

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

164

Polariton dispersion of periodic quantum well structures  

Science Journals Connector (OSTI)

We studied the polariton dispersion relations of a periodic quantum-well structure with a period in the vicinity of half the exciton resonance wavelength, i.e., the Bragg structure. We classified polariton mod...

A. V. Mintsev; L. V. Butov; C. Ell; S. Mosor…

2002-11-01T23:59:59.000Z

165

A Class Of Generalized Kapchinskij-Vladimirskij Solutions And Associated Envelope Equations For High-intensity Charged Particle Beams  

SciTech Connect (OSTI)

A class of generalized Kapchinskij-Vladimirskij solutions of the nonlinear Vlasov-Maxwell equations and the associated envelope equations for high-intensity beams in a periodic lattice is derived. It includes the classical Kapchinskij-Vladimirskij solution as a special case. For a given lattice, the distribution functions and the envelope equations are specified by eight free parameters. The class of solutions derived captures a wider range of dynamical envelope behavior for high-intensity beams, and thus provides a new theoretical tool to investigate the dynamics of high-intensity beams.

Hong Qin and Ronald C. Davidson

2012-04-25T23:59:59.000Z

166

SIMULTANEOUS OBSERVATION OF SOLAR OSCILLATIONS ASSOCIATED WITH CORONAL LOOPS FROM THE PHOTOSPHERE TO THE CORONA  

SciTech Connect (OSTI)

The solar oscillations along one coronal loop in AR 11504 are observed simultaneously in white light emission and Doppler velocity by SDO/HMI, and in UV and EUV emissions by SDO/AIA. The technique of the time-distance diagram is used to detect the propagating oscillations of the emission intensities along the loop. We find that although all the oscillation signals were intercorrelated, the low chromospheric oscillation correlated more closely to the oscillations of the transition region and corona than to those of the photosphere. Situated above the sunspot, the oscillation periods were {approx}3 minutes in the UV/EUV emissions; however, moving away from the sunspot and into the quiet Sun, the periods became longer, e.g., up to {approx}5 minutes or more. In addition, along another loop we observe both the high-speed outflows and oscillations, which roughly had a one-to-one corresponding relationship. This indicates that the solar periodic oscillations may modulate the magnetic reconnections between the loops of the high and low altitudes that drive the high-speed outflows along the loop.

Su, J. T.; Liu, S.; Zhang, Y. Z.; Zhao, H.; Xu, H. Q.; Xie, W. B. [Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Science, Beijing 100012 (China)] [Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Science, Beijing 100012 (China); Liu, Y. [National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011 (China)] [National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011 (China)

2013-01-01T23:59:59.000Z

167

Intensive Sampling Of Noble Gases In Fluids At Yellowstone- I, Early  

Open Energy Info (EERE)

Intensive Sampling Of Noble Gases In Fluids At Yellowstone- I, Early Intensive Sampling Of Noble Gases In Fluids At Yellowstone- I, Early Overview Of The Data, Regional Patterns Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Intensive Sampling Of Noble Gases In Fluids At Yellowstone- I, Early Overview Of The Data, Regional Patterns Details Activities (1) Areas (1) Regions (0) Abstract: The Roving Automated Rare Gas Analysis (RARGA) lab of Berkeley's Physics Department was deployed in Yellowstone National Park for a 19 week period commencing in June, 1983. During this time 66 gas and water samples representing 19 different regions of hydrothermal activity within and around the Yellowstone caldera were analyzed on site. Routinely, the abundances of five stable noble gases and the isotopic compositions of He,

168

Stability of graphene band structures against an external periodic perturbation: Na on graphene  

Science Journals Connector (OSTI)

The electronic structure of Na-adsorbed graphenes formed on the 6H-SiC(0001) substrate was studied using angle-resolved photoemission spectroscopy with synchrotron photons and ab initio pseudopotential calculations. It was found that the band of the graphenes sensitively changes upon Na adsorption especially at low temperature. With increasing Na dose, the ? band appears to be quickly diffused into the background at 85 K whereas it becomes significantly enhanced with its spectral intensity at room temperature (RT). A new parabolic band centered at k?1.15?Å?1 also forms near Fermi energy with Na at 85 K while no such band was observed at RT. Such changes in the band structure are found to be reversible with temperature. The changes in the ? band of graphene are mainly driven by the Na-induced potential especially at low temperature where the potential becomes periodic due to the crystallized Na overlayer. The new parabolic band turns out to be the ? band of the underlying buffer layer partially filled by the charge transfer from Na adatoms. The increase in the hopping rate of Na adatoms at RT by 5 orders of magnitude prevents such a charge transfer, explaining the absence of the new band at RT.

C. G. Hwang; S. Y. Shin; Seon-Myeong Choi; N. D. Kim; S. H. Uhm; H. S. Kim; C. C. Hwang; D. Y. Noh; Seung-Hoon Jhi; J. W. Chung

2009-03-27T23:59:59.000Z

169

Video Observation of the Leonids 2001 Activity  

Science Journals Connector (OSTI)

......2012 research-article Papers 7020 7040 Video Observation of the Leonids 2001 Activity...presents an analysis of records obtained by video equipment of the 2001 Leonid meteor storm...performed a high-sensitivity and wide-field video observation during the period from 15 45......

Chilong Lin; Shinsuke Abe; Pavel Koten; I-Ching Yang

2012-02-25T23:59:59.000Z

170

Morphology, Intensity, and Rainfall Production of MJO Convection: Observations from DYNAMO Shipborne Radar and TRMM  

Science Journals Connector (OSTI)

This study uses DYNAMO shipborne (R/V Revelle) radar and TRMM Precipitation Radar (PR) datasets to investigate MJO-associated convective systems in specific organizational modes (MCS vs. sub-MCS, linear vs. non-linear). The Revelle radar sampled ...

Weixin Xu; Steven A. Rutledge

171

Can magnetotail reconnection produce the auroral intensities observed in the conjugate ionosphere?  

E-Print Network [OSTI]

solar wind energy can be transferred through the Earth's magnetic shield. According to the anti also moves closer to the Earth as the solar wind energy input increases. [3] There are several ways

California at Berkeley, University of

172

Table 22. Energy Intensity, Projected vs. Actual  

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

Energy Intensity, Projected vs. Actual" Energy Intensity, Projected vs. Actual" "Projected" " (quadrillion Btu / real GDP in billion 2005 chained dollars)" ,1993,1994,1995,1996,1997,1998,1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011 "AEO 1994",11.24893441,11.08565002,10.98332766,10.82852279,10.67400621,10.54170176,10.39583203,10.27184573,10.14478673,10.02575883,9.910410202,9.810812106,9.69894802,9.599821783,9.486985399,9.394733753,9.303329725,9.221322623 "AEO 1995",,10.86137373,10.75116461,10.60467959,10.42268977,10.28668187,10.14461664,10.01081222,9.883759026,9.759022105,9.627404949,9.513643295,9.400418762,9.311729546,9.226142899,9.147374752,9.071102491,8.99599906 "AEO 1996",,,10.71047701,10.59846153,10.43655044,10.27812088,10.12746866,9.9694713,9.824165152,9.714832565,9.621874334,9.532324916,9.428169355,9.32931308,9.232716414,9.170931044,9.086870061,9.019963901,8.945602337

173

Efficiency and Intensity in the AEO 2010  

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

Session 9 Session 9 Energy Efficiency: Measuring Gains and Quantifying Opportunities April 7, 2010 2010 Energy Conference Washington, DC Steve Wade, Economist Efficiency and Intensity in the AEO 2010 Steve Wade, 2010 Energy Conference, April 7, 2010 2 * What are the sources of efficiency in the AEO 2010? * What is the contribution of energy efficiency to projected U.S. energy intensity? * How do AEO scenarios relate to technical potential? Overview Steve Wade, 2010 Energy Conference, April 7, 2010 3 * Technology - Stock turnover - Progress and learning * Mandates - CAFÉ, efficiency standards (NAECA, EPACT), building codes... - Renewable fuel standards * Incentives - Tax credits, loan guarantees, grants, ...  Energy efficiency and renewables - ACESA, ARRA (stimulus bill) ...  Investment tax credits

174

How intense quality control improves hydraulic fracturing  

SciTech Connect (OSTI)

Not unlike the subject of Forced Closure, Intense Quality Control is probably misnamed. What actually is discussed in this article is pilot testing of the fracturing fluids actually pumped at in-situ conditions of temperature and shear. Presented here is development of the need for onsite testing, equipment used, shear and viscosity curves from several jobs showing what went wrong that would otherwise not have been known, and a discussion of borate gel fluids.

Ely, J.W. [Ely and Associates, Inc., Houston, TX (United States)

1996-11-01T23:59:59.000Z

175

Intensive Variables & Nanostructuring in Magnetostructural Materials  

SciTech Connect (OSTI)

Over the course of this project, fundamental inquiry was carried out to investigate, understand and predict the effects of intensive variables, including the structural scale, on magnetostructural phase transitions in the model system of equiatomic FeRh. These transitions comprise simultaneous magnetic and structural phase changes that have their origins in very strong orbital-lattice coupling and thus may be driven by a plurality of effects.

Lewis, Laura

2014-08-13T23:59:59.000Z

176

Correlated-Intensity velocimeter for Arbitrary Reflector  

DOE Patents [OSTI]

A velocimetry apparatus and method comprising splitting incoming reflected laser light and directing the laser light into first and second arms, filtering the laser light with passband filters in the first and second arms, one having a positive passband slope and the other having a negative passband slope, and detecting the filtered laser light via light intensity detectors following the passband filters in the first and second arms

Wang, Zhehui (Los Alamos, NM); Luo, Shengnian (Los Alamos, NM); Barnes, Cris W. (Arlington, VA); Paul, Stephen F. (West Orange, NJ)

2008-11-11T23:59:59.000Z

177

Measurement of the orbital and superhump periods of the eclipsing cataclysmic variable SDSS J170213.26+322954.1  

E-Print Network [OSTI]

The orbital period of the eclipsing cataclysmic variable SDSS J170213.26+322954.1 has been measured as 0.10008215+/-0.00000001d using observations of eclipses during the first recorded superoutburst in October 2005 together with eclipses observed in quiescence in July 2003. This period puts the system in the centre of the period gap. Observation of superhumps during the October 2005 outburst with a period of 0.10496+/-0.00015d confirms this to be a UGSU-type system with a period excess of 4.9%.

David Boyd; Arto Oksanen; Arne Henden

2006-01-31T23:59:59.000Z

178

SES Probationary Period | Department of Energy  

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

SES Probationary Period SES Probationary Period SES Probationary Period An individual's initial appointment as an SES career appointee becomes final only after the individual has served a 1-year probationary period as a career appointee. That employee's rating official must perform an assessment of the new SES's performance during the probationary period. After the one year the selecting official must certify that the appointee performed at the level of excellence expected of a senior executive during the probationary period. When a career appointee's executive qualification have been certified by a Qualifications Review Board on the basis of special or unique qualities, as described in Sec. 317.502(c), the probationary assessment must address any executive development activities the agency identified in support of the

179

Intensity enhancement of O VI ultraviolet emission lines in solar spectra due to opacity  

E-Print Network [OSTI]

Opacity is a property of many plasmas, and it is normally expected that if an emission line in a plasma becomes optically thick, its intensity ratio to that of another transition that remains optically thin should decrease. However, radiative transfer calculations undertaken both by ourselves and others predict that under certain conditions the intensity ratio of an optically thick to thin line can show an increase over the optically thin value, indicating an enhancement in the former. These conditions include the geometry of the emitting plasma and its orientation to the observer. A similar effect can take place between lines of differing optical depth. Previous observational studies have focused on stellar point sources, and here we investigate the spatially-resolved solar atmosphere using measurements of the I(1032 A)/I(1038 A) intensity ratio of O VI in several regions obtained with the Solar Ultraviolet Measurements of Emitted Radiation (SUMER) instrument on board the Solar and Heliospheric Observatory (...

Keenan, F P; Madjarska, M S; Rose, S J; Bowler, L A; Britton, J; McCrink, L; Mathioudakis, M

2014-01-01T23:59:59.000Z

180

Periodic wave solutions of the Boussinesq equation  

Science Journals Connector (OSTI)

The Boussinesq equation usually arises in a physical problem as a long wave equation. The present work extends the search of periodic wave solutions for it. The Hirota bilinear method and Riemann theta function are employed in the process. We also analyse the asymptotic property of periodic waves in detail. Furthermore, it is of interest to note that well-known soliton solutions can be reduced from the periodic wave solutions.

Yi Zhang; Ling-ya Ye; Yi-neng Lv; Hai-qiong Zhao

2007-01-01T23:59:59.000Z

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


181

Ionized impurity scattering in periodically ?-doped InP  

Science Journals Connector (OSTI)

The quantum mobility in the individual minibands of InP with periodic Si ? doping was estimated from the Shubnikov–de Haas spectra of the samples, measured at 4.2 K in fields of 0–14 T. The set of samples studied had a sheet density of Si atoms of about 4.9×1012 cm-2 in each doped layer, and a doping period in the range 90–300 ?. A theoretical model for the quantum mobility in individual minibands was developed, and theoretical estimates of the quantum mobility are in reasonable agreement with the experimental values. It is observed that at a fixed doping period the quantum mobilities increase with the index of the miniband, and the quantum mobility in an individual miniband decreases when the doping period is made shorter. The dependence of the quantum mobility on the miniband index and doping periodicity correlates with the dependence of the mean distance between electrons and the doped layer on the same quantities. These results demonstrate that in ?-doped semiconductors the binding length of the quantum-confined electronic charge is a very important parameter, determining the carrier mobility which can be attained in these systems.

A. B. Henriques, L. C. D. Gon?calves, N. F. Oliveira Jr., P. L. Souza, and B. Yavich

1997-05-15T23:59:59.000Z

182

Ocean Observing Ocean Observing Systems (OOS)  

E-Print Network [OSTI]

, national, and global scales. · Ocean Observing Systems serve: Fishing industry National security Coastal properties, such as salinity, temperature, and waves Satellite maps of sea surface temperature NATIONAL Integrated Ocean Observing System (IOOS) 11 REGIONAL Systems, including: MANY LOCAL Systems

Schladow, S. Geoffrey

183

Intense steady state electron beam generator  

DOE Patents [OSTI]

An intense, steady state, low emittance electron beam generator is formed by operating a hollow cathode discharge plasma source at critical levels in combination with an extraction electrode and a target electrode that are operable to extract a beam of fast primary electrons from the plasma source through a negatively biased grid that is critically operated to repel bulk electrons toward the plasma source while allowing the fast primary electrons to move toward the target in the desired beam that can be successfully transported for relatively large distances, such as one or more meters away from the plasma source.

Hershcovitch, Ady (Mount Sinai, NY); Kovarik, Vincent J. (Bohemia, NY); Prelec, Krsto (Setauket, NY)

1990-01-01T23:59:59.000Z

184

Title of Document: EXPERIMENTAL STUDY OF SOLITONS ON INTENSE ELECTRON BEAMS  

E-Print Network [OSTI]

ABSTRACT Title of Document: EXPERIMENTAL STUDY OF SOLITONS ON INTENSE ELECTRON BEAMS Yichao Mo such as condensed matter physics, plasma physics, beam physics, optics, biology and medicine. Whereas solitons in electron beams have been predicted on theoretical grounds decades ago, they have been observed

Anlage, Steven

185

Performance of multilayers in intense synchrotron x-ray beams  

SciTech Connect (OSTI)

The use of multilayer reflectors under intense synchroton x-ray beams requires to develop a new generation of multilayered materials that can withstand a high-power load in excess of 100 W/mm/sup 2/. Multilayers with the high-/ital Z/ layer consisting either of a pure element or of compounds such as carbides, nitrides, or silicides have been produced. Because the fabrication conditions are not yet optimized, thin films with satisfactory layer were not obtained leading to poor reflectivities. Such multilayers have been both thermally annealed in a furnace and exposed to a synchrotron beam with a power density of about 1 W/mm/sup 2/. The resulting damage ranges from the total destruction of the layering to a reduction of the reflectivity by typically 40%--60%. In some cases an only 1%--15% loss in reflectivity has been observed.

Ziegler, E.; Lepetre, Y.; Joksch, S.; Saile, V.; Mourikis, S.; Viccaro, P. J.; Rolland, G.; Laugier, F.

1989-07-01T23:59:59.000Z

186

Dynamics of intense laser propagation in underdense plasma: Polarization dependence  

SciTech Connect (OSTI)

We present a comprehensive numerical study of the dynamics of an intense laser pulse as it propagates through an underdense plasma in two and three dimensions. By varying the background plasma density and the polarization of the laser beam, significant differences are found in terms of energy transport and dissipation, in agreement with recently reported experimental results. Below the threshold for relativistic self-focusing, the plasma and laser dynamics are observed to be substantially insensitive to the initial laser polarization, since laser transport is dominated by ponderomotive effects. Above this threshold, relativistic effects become important, and laser energy is dissipated either by plasma heating (p-polarization) or by trapping of electromagnetic energy into plasma cavities (s-polarization) or by a combination of both (circular polarization). Besides the fundamental interest of this study, the results presented are relevant to applications such as plasma-based accelerators, x-ray lasers, and fast-ignition inertial confinement fusion.

Singh, D. K.; Fiuza, F.; Silva, L. O. [GoLP, Instituto de Plasmas e Fusao Nuclear - Laboratorio Associado, Instituto Superior Tecnico, 1049-001 Lisboa (Portugal); Davies, J. R. [Fusion Science Center, Laboratory for Laser Energetics and Mechanical Engineering, University of Rochester, New York 14623 (United States); Sarri, G. [School of Mathematics and Physics, The Queens University of Belfast, Belfast BT7 1NN (United Kingdom)

2012-07-15T23:59:59.000Z

187

Late-time cosmology with 21cm intensity mapping experiments  

E-Print Network [OSTI]

We present a framework for forecasting cosmological constraints from future neutral hydrogen intensity mapping experiments at low to intermediate redshifts. In the process, we establish a simple way of comparing such surveys with optical galaxy redshift surveys. We explore a wide range of experimental configurations and assess how well a number of cosmological observables (the expansion rate, growth rate, and angular diameter distance) and parameters (the densities of dark energy and dark matter, spatial curvature, the dark energy equation of state, etc.) will be measured by an extensive roster of upcoming experiments. A number of potential contaminants and systematic effects are also studied in detail. The overall picture is encouraging - Phase I of the SKA should be able to constrain the dark energy equation of state about as well as a DETF Stage IV galaxy redshift survey like Euclid or LSST, in roughly the same timeframe.

Bull, Philip; Patel, Prina; Santos, Mario G

2014-01-01T23:59:59.000Z

188

Non-Abelian Geometric Phase, Floquet Theory, and Periodic Dynamical Invariants  

E-Print Network [OSTI]

For a periodic Hamiltonian, periodic dynamical invariants may be used to obtain non-degenerate cyclic states. This observation is generalized to the degenerate cyclic states, and the relation between the periodic dynamical invariants and the Floquet decompositions of the time-evolution operator is elucidated. In particular, a necessary condition for the occurrence of cyclic non-adiabatic non-Abelian geometrical phase is derived. Degenerate cyclic states are obtained for a magnetic dipole interacting with a precessing magnetic field.

Ali Mostafazadeh

1998-10-22T23:59:59.000Z

189

Non-Abelian Geometric Phase, Floquet Theory, and Periodic Dynamical Invariants  

E-Print Network [OSTI]

For a periodic Hamiltonian, periodic dynamical invariants may be used to obtain non-degenerate cyclic states. This observation is generalized to the degenerate cyclic states, and the relation between the periodic dynamical invariants and the Floquet decompositions of the time-evolution operator is elucidated. In particular, a necessary condition for the occurrence of cyclic non-adiabatic non-Abelian geometrical phase is derived. Degenerate cyclic states are obtained for a magnetic dipole interacting with a precessing magnetic field.

Mostafazadeh, A

1998-01-01T23:59:59.000Z

190

Considering the Case for Biodiversity Cycles: Reexamining the Evidence for Periodicity in the Fossil Record  

E-Print Network [OSTI]

Medvedev and Melott (2007) have suggested that periodicity in fossil biodiversity may be induced by cosmic rays which vary as the Solar System oscillates normal to the galactic disk. We re-examine the evidence for a 62 million year (Myr) periodicity in biodiversity throughout the Phanerozoic history of animal life reported by Rohde & Mueller (2005), as well as related questions of periodicity in origination and extinction. We find that the signal is robust against variations in methods of analysis, and is based on fluctuations in the Paleozoic and a substantial part of the Mesozoic. Examination of origination and extinction is somewhat ambiguous, with results depending upon procedure. Origination and extinction intensity as defined by RM may be affected by an artifact at 27 Myr in the duration of stratigraphic intervals. Nevertheless, when a procedure free of this artifact is implemented, the 27 Myr periodicity appears in origination, suggesting that the artifact may ultimately be based on a signal in the...

Lieberman, Bruce S

2007-01-01T23:59:59.000Z

191

High intensity discharge device containing oxytrihalides  

DOE Patents [OSTI]

A fill composition for a high intensity discharge device including mercury, niobium oxytrihalide, and a molecular stabilization agent is provided. The molar ratio of niobium oxytrihalide to the molecular stabilization agent in the fill is in the range of from about 5:1 to about 7.5:1. Niobium oxytrihalide is present in the fill in sufficient amount to produce, by dissociation in the discharge, atomic niobium, niobium oxide, NbO, and niobium dioxide, NbO[sub 2], with the molar ratio of niobium-containing vapor species to mercury in the fill being in the range of from about 0.01:1 to about 0.50:1; and mercury pressure of about 1 to about 50 atmospheres at lamp operating temperature. There is also provided a high intensity discharge device comprising a sealed light-transmissive arc tube; the arc tube including the above-described fill; and an energizing means for producing an electric discharge within the arc tube. 7 figs.

Lapatovich, W.P.; Keeffe, W.M.; Liebermann, R.W.; Maya, J.

1987-06-09T23:59:59.000Z

192

High intensity discharge device containing oxytrihalides  

DOE Patents [OSTI]

A fill composition for a high intensity discharge device including mercury, niobium oxytrihalide, and a molecular stabilization agent is provided. The molar ratio of niobium oxytrihalide to the molecular stabilization agent in the fill is in the range of from about 5:1 to about 7.5:1. Niobium oxytrihalide is present in the fill in sufficient amount to produce, by dissociation in the discharge, atomic niobium, niobium oxide, NbO, and niobium dioxide, NbO.sub.2, with the molar ratio of niobium-containing vapor species to mercury in the fill being in the range of from about 0.01:1 to about 0.50:1; and mercury pressure of about 1 to about 50 atmospheres at lamp operating temperature. There is also provided a high intensity discharge device comprising a sealed light-transmissive arc tube; the arc tube including the above-described fill; and an energizing means for producing an electric discharge within the arc tube.

Lapatovich, Walter P. (Hudson, MA); Keeffe, William M. (Rockport, MA); Liebermann, Richard W. (Danvers, MA); Maya, Jakob (Brookline, MA)

1987-01-01T23:59:59.000Z

193

High intensity specular reflectometry - first experiments  

E-Print Network [OSTI]

Selene is the attempt to implement a new scheme for high-intensity specular reflectometry. Instead of a highly collimated beam one uses a convergent beam covering a large angular range. The angular resolution is then performed by a position-sensitive detector. Off-specular scattering in this set-up leads to some background, but for screening of wide parameter ranges (e.g. temperature, electric and magnetic fields) the intensity gain of at least one order of magnitude is essential. If necessary, the high precession measurements (even with off-specular components) then are performed with the conventional set-up. The heart of this new set-up is an elliptically focusing guide element of 2\\,m length. Though this guide is optimised for the use on the TOF reflectometer Amor at SINQ, it can be used as stand-alone device to check the possible application also for other neutron scattering techniques. The first measurements on AMOR confirmed the general concept and the various operation modes. A draw-back occurred due t...

Stahn, J; Panzner, T

2011-01-01T23:59:59.000Z

194

On the description of the GCR intensity in the last three solar minima  

E-Print Network [OSTI]

We discuss the main characteristic features in the heliospheric parameters important for the GCR intensity modulation for the last three solar minima (1986--1987, 1996--1997 and 2008--2009). The model for the GCR intensity modulation is considered and the set of the model parameters is chosen which allows the description of the observed GCR intensity distributions at the moments of the maximum GCR intensity in two solar minima (1987 and 1997) normal for the second half of the last century. Then we try to describe with the above model and set of parameters the unusually soft GCR energy spectra at the moments of the maximum GCR intensity in the last solar minimum between cycles 23 and 24 (2009). Our main conclusion is that the most simple way to do so is to reduce the size of the modulation region and, probably, change the rigidity dependence of the diffusion coefficient. The change of both parameters is substantiated by the observations of the solar wind and heliospheric magnetic field.

Kalinin, M S; Krainev, M B; Svirzhevskaya, A K; Svirzhevsky, N S

2014-01-01T23:59:59.000Z

195

Quantum reflection and interference of matter waves from periodically doped surfaces  

E-Print Network [OSTI]

We show that periodically doped, flat surfaces can act as reflective diffraction gratings for atomic and molecular matter waves. The diffraction element is realized by exploiting that charged dopants locally suppress quantum reflection from the Casimir-Polder potential. We present a general quantum scattering theory for reflection off periodically charged surfaces and discuss the requirements for the observation of multiple diffraction peaks.

Benjamin A. Stickler; Uzi Even; Klaus Hornberger

2015-01-15T23:59:59.000Z

196

Quasi-16-day periodic meridional movement of the equatorial ionization anomaly  

E-Print Network [OSTI]

Based on the daytime location of the equatorial ionization anomaly (EIA) crest derived from GPS observations at low latitude over China during the 2005–2006 stratospheric sudden warming (SSW), a quasi-16-day periodic ...

Mo, X. H.

197

Probabilistic Multiple-Linear Regression Modeling for Tropical Cyclone Intensity  

Science Journals Connector (OSTI)

The authors describe the development and verification of a statistical model relating tropical cyclone intensity to the local large-scale environment. A multiple linear regression framework is used to estimate the expected intensity of a tropical ...

Chia-Ying Lee; Michael K. Tippett; Suzana J. Camargo; Adam H. Sobel

198

Energy End-Use Intensities in Commercial Buildings 1992 - Index...  

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

2 Energy End-Use Intensities 1992 Energy End-Use Intensities Overview Tables National estimates of energy consumption by fuel (electricity and natural gas) and end use (heating,...

199

China's energy intensity and its determinants at the provincial level  

E-Print Network [OSTI]

Energy intensity is defined as the amount of energy consumed per dollar of GDP (Gross Domestic Product). The People's Republic of China's (China's) energy intensity has been declining significantly since the late 1970s. ...

Zhang, Xin, S.M. Massachusetts Institute of Technology

2009-01-01T23:59:59.000Z

200

Laser-Matter Interaction Above the Plasma Ignition Threshold Intensity  

Science Journals Connector (OSTI)

In this chapter we present the process of laser-matter interaction above the plasma ignition threshold intensity. The physics of the pulsed laser ablation process at high intensities is very complex since it invo...

Mihai Stafe; Aurelian Marcu; Niculae N. Puscas

2014-01-01T23:59:59.000Z

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


201

Laser-Matter Interaction Below the Plasma Ignition Threshold Intensity  

Science Journals Connector (OSTI)

In this chapter we present the process of laser-matter interaction below the plasma ignition threshold intensity. When the high power laser radiation characterized by electric field intensities around ...

Mihai Stafe; Aurelian Marcu; Niculae N. Puscas

2014-01-01T23:59:59.000Z

202

Diversity–disturbance relationships: frequency and intensity interact  

Science Journals Connector (OSTI)

...relationship depended on the frequency of disturbances by the...diversity as the response variable and frequency and intensity as factors...unequivocally that the frequency-intensity interaction drives the coexistence of ecologically...

2012-01-01T23:59:59.000Z

203

E-Print Network 3.0 - accelerated hypofractionated intensity...  

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

(IMRT) de- pendends on finding... technologies. I. INTRODUCTION Intensity modulated radiation ... Source: Censor, Yair - Department of Mathematics, University of Haifa...

204

Balloon observations of ultra-low-frequency waves in the electric field above the South Pole  

SciTech Connect (OSTI)

The physics of ultra-low-frequency waves in the magnetosphere, near the cusp and in the polar cap, is important because this region is one where ultra-low-frequency wave energy from the magnetopause can most easily enter the magnetosphere. During the 1985-1986 South Pole balloon campaign, eight stratospheric balloon payloads were launched from Amundsen-Scott Station, South Geographic Pole, Antarctica, to record data on ultra-low-frequency waves. The payloads were instrumented with three-axis double-probe electric field detectors and X-ray scintillation counters. This paper concentrates on the third flight of this series, which was launched at 2205 universal time on 21 December 1985. Good data were received from the payload until the transmitter failed at 0342 universal time on 22 December. During most of the four hours that the balloon was afloat, an intense ultra-low-frequency wave event was in progress. The electric-field data from this period have been examined in detail and compared with magnetic field data, obtained with ground-based fluxgate and induction magnetometers to determine the characteristics of the waves. After float was reached, the electric-field data in figure 1 show large-amplitude, quasi-periodic fluctuations suggesting the presence of intense ultra-low-frequency wave activity. In conclusion, the electric-field signature observed from flight 3 appears to have been essentially an electrostatic event or possibly a short-wavelength hydromagnetic wave with a varying and interesting polarization character. The authors are continuing the analysis of the data to determine the source of the observed ultra-low-frequency waves.

Liao, B.; Benbrrook, J.R.; Bering E.A. III; Byrne, G.J.; Theall, J.R. (Univ. of Houston, TX (USA))

1988-01-01T23:59:59.000Z

205

LONG PERIOD OSCILLATIONS IN POLAR PLUMES AS OBSERVED BY CDS ON SoHO  

E-Print Network [OSTI]

and which may also provide enough energy flux for the acceleration of the fast solar wind. The data supports of the C­3 field of view and above the likely Alf'venic point of the wind flow. With the SUMER

206

Variable-Period Undulators for Synchrotron Radiation  

SciTech Connect (OSTI)

A new and improved undulator design is provided that enables a variable period length for the production of synchrotron radiation from both medium-energy and high energy storage rings. The variable period length is achieved using a staggered array of pole pieces made up of high permeability material, permanent magnet material, or an electromagnetic structure. The pole pieces are separated by a variable width space. The sum of the variable width space and the pole width would therefore define the period of the undulator. Features and advantages of the invention include broad photon energy tunability, constant power operation and constant brilliance operation.

Shenoy, Gopal; Lewellen, John; Shu, Deming; Vinokurov, Nikolai

2005-02-22T23:59:59.000Z

207

PERI Auto-tuning Memory Intensive Kernels  

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

PERI PERI - Auto-tuning Memory Intensive Kernels for Multicore Samuel Williams † , Kaushik Datta † , Jonathan Carter , Leonid Oliker † , John Shalf , Katherine Yelick † , David Bailey CRD/NERSC, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA † Computer Science Division, University of California at Berkeley, Berkeley, CA 94720, USA E-mail: SWWilliams@lbl.gov, kdatta@eecs.berkeley.edu, JTCarter@lbl.gov, LOliker@lbl.gov, JShalf@lbl.gov, KAYelick@lbl.gov, DHBailey@lbl.gov Abstract. We present an auto-tuning approach to optimize application performance on emerging multicore architectures. The methodology extends the idea of search-based performance optimizations, popular in linear algebra and FFT libraries, to application-specific computational kernels. Our work applies this strategy to Sparse Matrix Vector Multiplication

208

Position, rotation, and intensity invariant recognizing method  

DOE Patents [OSTI]

A method for recognizing the presence of a particular target in a field of view which is target position, rotation, and intensity invariant includes the preparing of a target-specific invariant filter from a combination of all eigen-modes of a pattern of the particular target. Coherent radiation from the field of view is then imaged into an optical correlator in which the invariant filter is located. The invariant filter is rotated in the frequency plane of the optical correlator in order to produce a constant-amplitude rotational response in a correlation output plane when the particular target is present in the field of view. Any constant response is thus detected in the output The U.S. Government has rights in this invention pursuant to Contract No. DE-AC04-76DP00789 between the U.S. Department of Energy and AT&T Technologies, Inc.

Ochoa, Ellen (Pleasanton, CA); Schils, George F. (San Ramon, CA); Sweeney, Donald W. (Alamo, CA)

1989-01-01T23:59:59.000Z

209

Title of Dissertation: CONTROL AND TRANSPORT OF INTENSE ELECTRON BEAMS  

E-Print Network [OSTI]

ABSTRACT Title of Dissertation: CONTROL AND TRANSPORT OF INTENSE ELECTRON BEAMS Hui Li, Doctor Engineering The transport of intense beams for advanced accelerator applications with high-intensity beams of beam characteristics over long distances. The University of Maryland Electron Ring (UMER), which uses

Anlage, Steven

210

AN INTENSE LOW ENERGY MUON SOURCE FOR THE MUON COLLIDER  

E-Print Network [OSTI]

AN INTENSE LOW ENERGY MUON SOURCE FOR THE MUON COLLIDER D. Taqqu Paul Scherrer Institut, Villigen, CH Abstract A scheme for obtaining an intense source of low energy muons is described. It is based of the decay muons an intense intermediate energy muon beam is obtained. For the specific case of negative

McDonald, Kirk

211

Polarization Observations with the Cosmic Background Imager  

E-Print Network [OSTI]

Polarization observations of the cosmic microwave background with the Cosmic Background Imager from September 2002 to May 2004 provide a significant detection of the E-mode polarization and reveal an angular power spectrum of polarized emission showing peaks and valleys that are shifted in phase by half a cycle relative to those of the total intensity spectrum. This key agreement between the phase of the observed polarization spectrum and that predicted based on the total intensity spectrum provides support for the standard model of cosmology, in which dark matter and dark energy are the dominant constituents, the geometry is close to flat, and primordial density fluctuations are predominantly adiabatic with a matter power spectrum commensurate with inflationary cosmological models.

A. C. S. Readhead; S. T. Myers; T. J. Pearson; J. L. Sievers; B. S. Mason; C. R. Contaldi; J. R. Bond; R. Bustos; P. Altamirano; C. Achermann; L. Bronfman; J. E. Carlstrom; J. K. Cartwright; S. Casassus; C. Dickinson; W. L. Holzapfel; J. M. Kovac; E. M. Leitch; J. May; S. Padin; D. Pogosyan; M. Pospieszalski; C. Pryke; R. Reeves; M. C. Shepherd; S. Torres

2004-09-23T23:59:59.000Z

212

On observing acoustic backscattering from salinity turbulence  

Science Journals Connector (OSTI)

It has been hypothesized that at sufficiently high levels of oceanic salinity turbulence it should be possible to observe acoustic backscattering. However there have been limited in situmeasurements to confirm this hypothesis. Using an autonomous underwater vehicle equipped with upward and downward looking 1.2 MHz acoustic Doppler current profilers and with turbulence and fine scale sensors measurements were performed in a region of intense turbulence and a strong salinity gradient. The approach taken was to correlate variations in the backscattered acoustic intensity I with a theoretical acoustic backscattering cross section per volume for salinity turbulence ? s to obtain an estimated scattering cross section per volume ? e . Results indicated that of order 50% of the observed region was characterized by salinity turbulence induced backscattering.

Louis Goodman; Marcos M. Sastre-Córdova

2011-01-01T23:59:59.000Z

213

Quantitative Measurements of X-ray Intensity  

SciTech Connect (OSTI)

This chapter describes the characterization of several X-ray sources and their use in calibrating different types of X-ray cameras at National Security Technologies, LLC (NSTec). The cameras are employed in experimental plasma studies at Lawrence Livermore National Laboratory (LLNL), including the National Ignition Facility (NIF). The sources provide X-rays in the energy range from several hundred eV to 110 keV. The key to this effort is measuring the X-ray beam intensity accurately and traceable to international standards. This is accomplished using photodiodes of several types that are calibrated using radioactive sources and a synchrotron source using methods and materials that are traceable to the U.S. National Institute of Standards and Technology (NIST). The accreditation procedures are described. The chapter begins with an introduction to the fundamental concepts of X-ray physics. The types of X-ray sources that are used for device calibration are described. The next section describes the photodiode types that are used for measuring X-ray intensity: power measuring photodiodes, energy dispersive photodiodes, and cameras comprising photodiodes as pixel elements. Following their description, the methods used to calibrate the primary detectors, the power measuring photodiodes and the energy dispersive photodiodes, as well as the method used to get traceability to international standards are described. The X-ray source beams can then be measured using the primary detectors. The final section then describes the use of the calibrated X-ray beams to calibrate X-ray cameras. Many of the references are web sites that provide databases, explanations of the data and how it was generated, and data calculations for specific cases. Several general reference books related to the major topics are included. Papers expanding some subjects are cited.

Haugh, M. J., Schneider, M.

2011-09-01T23:59:59.000Z

214

Multiparameter Intelligent Monitoring in Intensive Care Ii (Mimic-Ii): A Public-Access Intensive Care Unit Database  

E-Print Network [OSTI]

Objective: We sought to develop an intensive care unit research database applying automated techniques to aggregate high-resolution diagnostic and therapeutic data from a large, diverse population of adult intensive care ...

Saeed, Mohammed

215

The shortest modulation period Blazhko RR Lyrae star: SS Cnc  

E-Print Network [OSTI]

Extended BV(RI)c CCD observations of SS Cnc, a short period RRab star are presented. Nearly 1400 data points in each band have been obtained spanning over 79 days during the spring of 2005. The star exhibits light curve modulation, the so called Blazhko effect with small amplitude (B maximum brightness varies 0.1 mag) and with the shortest modulation period (5.309 d) ever observed. In the Fourier spectrum of the V light curve the pulsation frequency components are detected up to the 24th harmonic order, and modulation side lobe frequencies with significantly asymmetric amplitudes are seen up to the 15th and 9th orders for the lower and higher frequency components, respectively. Detailed comparison of the modulation behavior of SS Cnc and RR Gem, the two recently discovered small amplitude, short modulation period Blazhko stars is presented. The modulation frequency (f_m) appears in the Fourier spectrum of both stars with similar amplitude. We also demonstrate that the modulation frequencies have basically different properties as the pulsation and modulation side lobe frequencies have, indicating that the physics behind these frequency components are not the same. The discovery of small amplitude modulations of RRab stars cautions that the large photometric surveys (MACHO, OGLE) may seriously underestimate the number of modulated RR Lyrae stars.

J. Jurcsik; B. Szeidl; Á. Sódor; I. Dékány; Zs. Hurta; K. Posztobányi; K. Vida; M. Váradi; A. Szing

2006-03-20T23:59:59.000Z

216

ELECTRON CLOUD OBSERVATIONS AND CURES IN RHIC.  

SciTech Connect (OSTI)

Since 2081 MIC has experienced electron cloud effects, which have limited the beam intensity. These include dynamic pressure rises - including pressure instabilities, tune shifts: electrons, a reduction of the stability threshold for bunches crossing the transition energy, and possibly slow emittance growth. We summarize the main observations in operation and dedicated experiments, as well as countermeasures including baking, NEG coated warm beam pipes, solenoids, bunch patterns, anti-grazing rings, pre-pumped cold beam pipes, and scrubbing.

FISCHER,W.; BLASKIEWICZ, M.; HUAN, H.; HSEUH, H.C.; PTITSYN, V.; ROSER, T.; THIEBERGER, P.; TRBOJEVIC, D.; WEI, J.; ZHANG, S.Y.; IRISO, U.

2007-03-01T23:59:59.000Z

217

ELECTRON CLOUD OBSERVATIONS AND CURES IN RHIC  

SciTech Connect (OSTI)

Since 2001 RHIC has experienced electron cloud effects, which have limited the beam intensity. These include dynamic pressure rises - including pressure instabilities, tune shifts, a reduction of the stability threshold for bunches crossing the transition energy, and possibly incoherent emittance growth. We summarize the main observations in operation and dedicated experiments, as well as countermeasures including baking, NEG coated warm beam pipes, solenoids, bunch patterns, anti-grazing rings, pre-pumped cold beam pipes, scrubbing, and operation with long bunches.

FISCHER,W.; BLASKIEWICZ, M.; HUANG, H.; HSEUH, H.C.; ET AL.

2007-06-25T23:59:59.000Z

218

PARS II Process Document – DOE Period Close  

Broader source: Energy.gov [DOE]

This document details the process adopted by the Office of Acquisition and Project Management to prepare APM DepSec Monthly Status Report, finalize DOE close period package, and perform reporting...

219

EIS-0504: Notice of Extension of Scoping Period | Department...  

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

Extension of Scoping Period EIS-0504: Notice of Extension of Scoping Period Gulf LNG Liquefaction Project, Jackson County, Mississippi FERC extended the scoping period to September...

220

Lengthening the Storage Period of Cucumbers.  

E-Print Network [OSTI]

TEXAS AGRICULTURAL EXPERIMENT STATION A. B. CONNER, DIRECTOR COLLEGE STATION, BRAZOS COUNTY, TEXAS BULLETIN NO. 576 AUGUST 1939 DIVISION OF RURAL HOME RESEARCH AND DIVISION OF HORTICULTURE 1NGTHENING THE STORAGE PERIOD OF CUCUMBERS..., in common storage. Consid- ering only loss of weight the period of common storage was increased from 1 to 7 weeks. When other factors such as palatability are taken into account, M. T. Cellophane wrapped cucumbers remained in good condition only about 10...

Hawthorn, L. R. (Leslie Rushton); Whitacre, Jessie (Jessie Opal); Yarnell, S. H. (Sidney Howe)

1939-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "intensive observation period" 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

High?frequency cutoff periodic dielectric waveguides  

Science Journals Connector (OSTI)

We report high?frequency cutoff in periodic dielectric waveguides. The guides consisted of 1?? photoresist film with a surface corrugation of up to 500 Å overlaid on fused silica substrates. At a wavelength of 1.064 ? we obtained transition between complete cutoff and propagation by variation in the periodicity of the guide of ± 30 Å. For gratings having 500?Å corrugation unobstructed propagation at 1.32 ? occurred with complete stopping of 1.064?? light.

F.W. Dabby; M.A. Saifi; A. Kestenbaum

1973-01-01T23:59:59.000Z

222

Energy intensity and the energy mix: What works for the environment?  

Science Journals Connector (OSTI)

Abstract In the absence of carbon sequestration, mitigating carbon emissions can be achieved through a mix of two broad policy approaches: (i) reducing energy intensity by improving energy efficiency and conservation, and (ii) changing the fuel mix. This paper investigates the long-run relationship between energy intensity, the energy mix, and per capita carbon emissions; while controlling for the level of economic activity, the economic structure measured by the relative size of the manufacturing sector, and the differences in institutional qualities across countries. We aim to answer two particularly important policy questions. First, to what extent these policy approaches are effective in mitigating emissions in the long-run? Second, which institutional qualities significantly contribute to better long-run environmental performance? We use historical data for 131 countries in a heterogeneous panel framework for the period 1972–2010. We find that less dependence on fossil fuel and lower energy intensity reduce emissions in the long run. A goal of 10% reduction in CO2 levels in the long-run requires reducing the share of fossil fuel in total energy use by 11%, or reducing energy intensity by 13%. In addition, specific institutional qualities such as better corruption control and judiciary independence contribute to mitigating levels of emissions.

Amany A. El Anshasy; Marina-Selini Katsaiti

2014-01-01T23:59:59.000Z

223

Light intensity and image visualization of GDI injector sprays according to nozzle hole arrangements  

Science Journals Connector (OSTI)

Abstract The light intensity measurement and image visualization of multi-hole injection spray due to different hole arrangements and hole numbers were investigated. The light intensities and behavior characteristics of the GDI spray were analyzed through the axial and diagonal spray penetration, cone angle, and spray area from the spray images by using the image visualization system and image analysis system. The atomization performance of GDI injectors was analyzed by the local and overall Sauter mean diameter (SMD) measurement. It is revealed that the higher injection pressure shows higher light intensity levels due to the strong vortices and collision by a high injection pressure. The light intensity level at the outer and end region of the spray shows lower value compared to that at the center spray region. In all of test injectors, the increased injection pressure leads to the decrease of the droplet size distribution in the initial spray. But, there is little difference of the droplet size at low and high injection pressure in middle and latter period after the injection. The overall SMD of GDI injectors showed from 14 to 23.14 ?m.

Hyung Jun Kim; Su Han Park; Chang Sik Lee

2014-01-01T23:59:59.000Z

224

periods of inconvenience when they drop fruit and create litter problems on paved surfaces such as patios, walks, driveways,  

E-Print Network [OSTI]

periods of inconvenience when they drop fruit and create litter problems on paved surfaces a flowering or fruiting tree lives up to its potential for health and beauty is largely dependent upon its will thrive and flower well. Flowering and fruiting are greatly influenced by duration and intensity

Liskiewicz, Maciej

225

High-Intensity Discharge Lighting Basics | Department of Energy  

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

High-Intensity Discharge Lighting Basics High-Intensity Discharge Lighting Basics High-Intensity Discharge Lighting Basics August 15, 2013 - 5:59pm Addthis High-intensity discharge (HID) lighting provides the highest efficacy and longest service life of any lighting type. It can save 75%-90% of lighting energy when it replaces incandescent lighting. Illustration of a high-intensity discharge (HID) lIllustration amp. The lamp is a tall cylindrical shape, and a cutout of the outer tube shows the materials inside. A long, thin cylinder called the arc tube runs through the lamp between two electrodes. The space around the arc tube is labeled as a vacuum. In a high-intensity discharge lamp, electricity arcs between two electrodes, creating an intensely bright light. Mercury, sodium, or metal halide gas

226

Table 23. Energy Intensity, Projected vs. Actual  

Gasoline and Diesel Fuel Update (EIA)

Energy Intensity, Projected vs. Actual Energy Intensity, Projected vs. Actual (quadrillion Btu / $Billion Nominal GDP) 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 AEO 1982 20.1 18.5 16.9 15.5 14.4 13.2 AEO 1983 19.9 18.7 17.4 16.2 15.1 14.0 9.5 AEO 1984 20.1 19.0 17.7 16.5 15.5 14.5 10.2 AEO 1985 20.0 19.1 18.0 16.9 15.9 14.7 13.7 12.7 11.8 11.0 10.3 AEO 1986 18.3 17.8 16.8 16.1 15.2 14.3 13.4 12.6 11.7 10.9 10.2 9.5 8.9 8.3 7.8 AEO 1987 17.6 17.0 16.3 15.4 14.5 13.7 12.9 12.1 11.4 8.2 AEO 1989* 16.9 16.2 15.2 14.2 13.3 12.5 11.7 10.9 10.2 9.6 9.0 8.5 8.0 AEO 1990 16.1 15.4 11.7 8.6 6.4 AEO 1991 15.5 14.9 14.2 13.6 13.0 12.5 11.9 11.3 10.8 10.3 9.7 9.2 8.7 8.3 7.9 7.4 7.0 6.7 6.3 6.0 AEO 1992 15.0 14.5 13.9 13.3 12.7 12.1 11.6 11.0 10.5 10.0 9.5 9.0 8.6 8.1 7.7 7.3 6.9 6.6 6.2 AEO 1993 14.7 13.9 13.4 12.8 12.3 11.8 11.2 10.7 10.2 9.6 9.2 8.7 8.3 7.8 7.4 7.1 6.7 6.4

227

Energy intensities and CO2 emissions in Catalonia: a SAM analysis  

Science Journals Connector (OSTI)

In this paper, we estimate sectoral energy intensities and CO2 emissions for the Catalonian economy. In order to evaluate energy intensities, we use the SAM (Social Accounting Matrix) multiplier analysis applied to a SAM of the economy. CO2 emissions are estimated by means of the Leontief input-output submodel of the SAM, together with a table of coefficients of emissions per unit of monetary expenditures. This new methodology allows us to dispense with energy input-output tables for the base period. Our results are of the same order of magnitude as others obtained by physical measurement methods. We also simulate how changes in demand and energy energy efficiency parameters may affect CO2 emissions for the economy.

Antonio Manresa; Ferran Sancho

2004-01-01T23:59:59.000Z

228

Data Intensive Architecture for Scalable Cyber Analytics  

SciTech Connect (OSTI)

Cyber analysts are tasked with the identification and mitigation of network exploits and threats. These compromises are difficult to identify due to the characteristics of cyber communication, the volume of traffic, and the duration of possible attack. In this paper, we describe a prototype implementation designed to provide cyber analysts an environment where they can interactively explore a month’s worth of cyber security data. This prototype utilized On-Line Analytical Processing (OLAP) techniques to present a data cube to the analysts. The cube provides a summary of the data, allowing trends to be easily identified as well as the ability to easily pull up the original records comprising an event of interest. The cube was built using SQL Server Analysis Services (SSAS), with the interface to the cube provided by Tableau. This software infrastructure was supported by a novel hardware architecture comprising a Netezza TwinFin® for the underlying data warehouse and a cube server with a FusionIO drive hosting the data cube. We evaluated this environment on a month’s worth of artificial, but realistic, data using multiple queries provided by our cyber analysts. As our results indicate, OLAP technology has progressed to the point where it is in a unique position to provide novel insights to cyber analysts, as long as it is supported by an appropriate data intensive architecture.

Olsen, Bryan K.; Johnson, John R.; Critchlow, Terence J.

2011-12-19T23:59:59.000Z

229

Mapping Ocean Observations in a Dynamical Framework: A 2004-06 Ocean Atlas  

E-Print Network [OSTI]

This paper exploits a new observational atlas for the near-global ocean for the best-observed 3-yr period from December 2003 through November 2006. The atlas consists of mapped observations and derived quantities. Together ...

Forget, Gael

230

Property:TimePeriod | Open Energy Information  

Open Energy Info (EERE)

TimePeriod TimePeriod Jump to: navigation, search This is a property of type String. Pages using the property "TimePeriod" Showing 25 pages using this property. (previous 25) (next 25) 0 0.4 kV remote control (Smart Grid Project) + Not available + 2 220 kV SSSC device for power flow control (Smart Grid Project) + Jul 2009 Jul 2014 + A A complete and normalized 61850 substation (Smart Grid Project) + Oct 2009 Dec 2015 + ADELE Project AACAES (Smart Grid Project) + Dec 2009 Dec 2013 + AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration (Smart Grid Project) + 2011-2014 + AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration (Smart Grid Project) (Belgium) + 2011-2014 +

231

Spectrum of Light in a Quantum Fluctuating Periodic Structure  

Science Journals Connector (OSTI)

We address the general problem of the excitation spectrum for light coupled to scatterers having quantum fluctuating positions around the sites of a periodic lattice. In addition to providing an imaginary part to the spectrum, we show that these quantum fluctuations affect the real part of the spectrum, in a way that we determine analytically. Our predictions may be observed with ultracold atoms in an optical lattice, on a J=0?J?=1 narrow atomic transition. As a side result, we resolve a controversy for the occurrence of a spectral gap in a fcc lattice.

Mauro Antezza and Yvan Castin

2009-09-18T23:59:59.000Z

232

Dissociation of H{sub 2}{sup +} in intense femtosecond laser fields studied by coincidence three-dimensional momentum imaging  

SciTech Connect (OSTI)

The dissociation of H{sub 2}{sup +} in an intense laser field has been experimentally studied using femtosecond laser pulses at 790 nm in the intensity range of 10{sup 13}-10{sup 15} W/cm{sup 2}. Kinematically complete measurements of both the ionic H{sup +} and neutral H fragments dissociated from a vibrationally excited H{sub 2}{sup +} beam have been achieved by a coincidence three-dimensional momentum imaging system. Angular-resolved kinetic energy release spectra for a series of different intensity ranges have been obtained using the intensity-difference spectrum method, thus disentangling the problem caused by the intensity volume effect. Our results indicate that the dissociation dynamics are drastically different for 'long' (135 fs) and 'short' (45 fs) laser pulses at similar high laser intensities. Specifically, bond softening is found to be the main feature in long pulses, while above threshold dissociation is dominant in short pulses whose durations are comparable with the vibrational period of the molecule. Bond softening in short pulses appears at low kinetic energy release with a narrow angular distribution. The experimental results are well interpreted by solving the time-dependent Schroedinger equation in the Born-Oppenheimer representation without nuclear rotation.

Wang, P. Q.; Sayler, A. M.; Carnes, K. D.; Xia, J. F.; Smith, M. A.; Esry, B. D.; Ben-Itzhak, I. [J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506 (United States)

2006-10-15T23:59:59.000Z

233

Considering the Case for Biodiversity Cycles: Reexamining the Evidence for Periodicity in the Fossil Record  

E-Print Network [OSTI]

Medvedev and Melott (2007) have suggested that periodicity in fossil biodiversity may be induced by cosmic rays which vary as the Solar System oscillates normal to the galactic disk. We re-examine the evidence for a 62 million year (Myr) periodicity in biodiversity throughout the Phanerozoic history of animal life reported by Rohde & Mueller (2005), as well as related questions of periodicity in origination and extinction. We find that the signal is robust against variations in methods of analysis, and is based on fluctuations in the Paleozoic and a substantial part of the Mesozoic. Examination of origination and extinction is somewhat ambiguous, with results depending upon procedure. Origination and extinction intensity as defined by RM may be affected by an artifact at 27 Myr in the duration of stratigraphic intervals. Nevertheless, when a procedure free of this artifact is implemented, the 27 Myr periodicity appears in origination, suggesting that the artifact may ultimately be based on a signal in the data. A 62 Myr feature appears in extinction, when this same procedure is used. We conclude that evidence for a periodicity at 62 Myr is robust, and evidence for periodicity at approximately 27 Myr is also present, albeit more ambiguous.

Bruce S. Lieberman; Adrian L. Melott

2007-08-22T23:59:59.000Z

234

BEAM INTENSITY AND ENERGY CONTROL FOR THE SPIRAL2 FACILITY  

E-Print Network [OSTI]

BEAM INTENSITY AND ENERGY CONTROL FOR THE SPIRAL2 FACILITY C. Jamet, T. Andre, B. Ducoudret, C to control both beam intensity and energy by non-interceptive methods at the linac exit. The beam current will range in intensity from a few 10 A to 1mA for ions, up to 5 mA for deuterons, and in energy from 0.75 up

Paris-Sud XI, Université de

235

Orbital periods of twenty two subdwarf B stars  

E-Print Network [OSTI]

Subdwarf B (sdB) stars are thought to be core helium burning stars with low mass hydrogen envelopes. In recent years it has become clear that many sdB stars lose their hydrogen through interaction with a binary companion and continue to reside in binary systems today. In this paper we present the results of a programme to measure orbital parameters of binary sdB stars. We determine the orbits of 22 binary sdB stars from 424 radial velocity measurements, raising the sample of sdBs with known orbital parameters to 38. We calculate lower limits for the masses of the companions of the sdB stars which, when combined with the orbital periods of the systems, allow us to discuss approximate evolutionary constraints. We find that a formation path for sdB stars consisting of mass transfer at the tip of the red giant branch followed by a common envelope phase explains most, but not all of the observed systems. It is particularly difficult to explain both long period systems and short period, massive systems. We present new measurements of the effective temperature, surface density and surface helium abundance for some of the sdB stars by fitting their blue spectra. We find that two of them (PG0839+399 and KPD1946+4340) do not lie in the Extreme Horizontal Branch (EHB) band indicating that they are post-EHB stars.

L. Morales-Rueda; P. F. L. Maxted; T. R. Marsh; R. C. North; U. Heber

2002-09-23T23:59:59.000Z

236

The periodic spectroscopic variability of FU Orionis  

Science Journals Connector (OSTI)

......the emergence of the energy liberated by accretion...of the central star in solar masses. The maximum...is the stellar mass in solar masses. Even in the...this could represent an economical solution to the two period...Associations and the Solar Vicinity. Kluwer, Dordrecht......

Stacie L. Powell; Mike Irwin; Jerome Bouvier; Cathie J. Clarke

2012-11-11T23:59:59.000Z

237

Coherency saturation in periodic structures with randomization  

E-Print Network [OSTI]

,28 or multicascade stimulated Raman scattering.29­31 A major example of naturally occurring spatially periodic with very reasonable precision. In the specific case of x ray transition radiation of low layers can generate resonantly enhanced radiation in the hard x ray domain with almost unhampered

Kaplan, Alexander

238

Broadband solar absorption enhancement via periodic  

E-Print Network [OSTI]

Broadband solar absorption enhancement via periodic nanostructuring of electrodes Michael M. Adachi Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 3G4, Canada, 2 Province, 230009, P. R. China. Solution processed colloidal quantum dot (CQD) solar cells have great

239

ESMAP-China Energy Intensity Reduction Strategy | Open Energy Information  

Open Energy Info (EERE)

Intensity Reduction Strategy Intensity Reduction Strategy Jump to: navigation, search Name China-ESMAP Low Carbon Growth Country Studies Program Agency/Company /Organization Energy Sector Management Assistance Program of the World Bank Sector Energy, Land Focus Area Energy Efficiency, Renewable Energy, Forestry, Agriculture Topics Low emission development planning, Policies/deployment programs, Background analysis Website http://www.esmap.org/filez/pub Country China Eastern Asia References China Energy Intensity Reduction Strategy[1] Overview "The study involves the development of pragmatic "implementation" focused policy notes to support the Government of China's goal of reducing energy intensity in China focusing on: Reevaluation of renewable energy targets, growth path, and related

240

iterative regularization in intensity-modulated radiation therapy ...  

E-Print Network [OSTI]

the overall deliverable treatment is of high quality and obtained at less expense ...... Intensity modulated photon beams subject to a minimal surface smoothing.

2005-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "intensive observation period" 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

Probing Long Range Intensity Correlations inside Disordered Photonic Waveguides  

Science Journals Connector (OSTI)

We report direct measurements of long-range spatial intensity correlations and fluctuations inside quasi-two-dimensional random structures. Long-range correlations are enhanced by...

Sarma, Raktim; Yamilov, Alexey; Neupane, Pauf; Shapiro, Boris; Cao, Hui

242

User Training for Data Intensive Science Co-Chairs: Fernanda...  

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

User Training for Data Intensive Science Co-Chairs: Fernanda Foertter, Tim Fahey 1 Contributors * Blaise Barney, LLNL * Karen Haskell, SNL * Bob Balance, SNL * Fernanda Foertter,...

243

Transverse Focussing of Intense Charged Particle Beams with Chromatic...  

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

Transverse Focussing of Intense Charged Particle Beams with Chromatic Effects for Heavy Ion Fusion Inventors..--.. James M. Mitrani, Igor D, Kaganovich, Ronald C, Davidson. A two...

244

China-Energy Intensity Reduction Strategy | Open Energy Information  

Open Energy Info (EERE)

Website http:www.esmap.orgfilezpub Country China Eastern Asia References China Energy Intensity Reduction Strategy1 Overview "The study involves the development of...

245

Reducing Industrial Energy Intensity in the Southeast Project...  

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

Authority and its project partners will establish the Southeastern Center for Industrial Energy Intensity Reduction (the Center) to inform industrial facilities about the U.S....

246

Comparison of International Energy Intensities across the G7...  

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

Comparison of International Energy Intensities across the G7 and other parts of Europe, including Ukraine Elizabeth Sendich November 2014 Independent Statistics & Analysis...

247

High intensity x-ray source using liquid gallium target  

DOE Patents [OSTI]

A high intensity x-ray source that uses a flowing stream of liquid gallium as a target with the electron beam impinging directly on the liquid metal.

Smither, Robert K. (Hinsdale, IL); Knapp, Gordon S. (Cupertino, CA); Westbrook, Edwin M. (Chicago, IL); Forster, George A. (Westmont, IL)

1990-01-01T23:59:59.000Z

248

Observables of Macdonald processes  

E-Print Network [OSTI]

We present a framework for computing averages of various observables of Macdonald processes. This leads to new contour--integral formulas for averages of a large class of multilevel observables, as well as Fredholm determinants for averages of two different single level observables.

Alexei Borodin; Ivan Corwin; Vadim Gorin; Shamil Shakirov

2013-06-04T23:59:59.000Z

249

Methoden Wetenschappelijk and Observational  

E-Print Network [OSTI]

Methoden Wetenschappelijk Onderzoek Fact-free and Observational Science #12;Data · Part of modern science is based on observation ­How do we do this? ­And what are the pitfalls? · Knowing how to observe is an important step in experimental design #12;Three kinds of science · There are (in my view) three ways

Steels, Luc

250

Energy use and carbon dioxide emissions in energy-intensive industries in key developing countries  

E-Print Network [OSTI]

R. Schaeffer, 1997, “Energy Intensity in the Iron and Steelwhich is the ratio of the actual energy intensity to thebest practice energy intensity, where the best practice

Price, Lynn; Worrell, Ernst; Phylipsen, Dian

1999-01-01T23:59:59.000Z

251

Energy-Efficiency Technologies and Benchmarking the Energy Intensity for the Textile Industry  

E-Print Network [OSTI]

Benchmarking the Energy Intensity for the Textile Industryand Comparing the Energy Intensity in the Textile Industrywere visited. The energy intensity of each plant was

Hasanbeigi, Ali

2014-01-01T23:59:59.000Z

252

Analysis and Decomposition of the Energy Intensity of Industries in California  

E-Print Network [OSTI]

World Best Practice Energy Intensity Values for Selectedworld-best-practice-energy-intensity-values- selected-2005. Changes in energy intensities of Thai industry between

Can, Stephane de la Rue de

2014-01-01T23:59:59.000Z

253

EXTINCTION AND POLYCYCLIC AROMATIC HYDROCARBON INTENSITY VARIATIONS ACROSS THE H II REGION IRAS 12063-6259  

SciTech Connect (OSTI)

The spatial variations in polycyclic aromatic hydrocarbon (PAH) band intensities are normally attributed to the physical conditions of the emitting PAHs, however in recent years it has been suggested that such variations are caused mainly by extinction. To resolve this question, we have obtained near-infrared (NIR), mid-infrared (MIR), and radio observations of the compact H II region IRAS 12063-6259. We use these data to construct multiple independent extinction maps and also to measure the main PAH features (6.2, 7.7, 8.6, and 11.2 {mu}m) in the MIR. Three extinction maps are derived: the first using the NIR hydrogen lines and case B recombination theory; the second combining the NIR data with radio data; and the third making use of the Spitzer/IRS MIR observations to measure the 9.8 {mu}m silicate absorption feature using the Spoon method and PAHFIT (as the depth of this feature can be related to overall extinction). The silicate absorption over the bright, southern component of IRAS 12063-6259 is almost absent while the other methods find significant extinction. While such breakdowns of the relationship between the NIR extinction and the 9.8 {mu}m absorption have been observed in molecular clouds, they have never been observed for H II regions. We then compare the PAH intensity variations in the Spitzer/IRS data after dereddening to those found in the original data. It was found that in most cases, the PAH band intensity variations persist even after dereddening, implying that extinction is not the main cause of the PAH band intensity variations.

Stock, D. J.; Peeters, E.; Otaguro, J. N. [Department of Physics and Astronomy, University of Western Ontario, London, ON N6A 3K7 (Canada); Tielens, A. G. G. M. [Leiden Observatory, Leiden University, P.O. Box 9513, NL-2300 RA Leiden (Netherlands); Bik, A. [Max-Planck-Institut fuer Astronomie, Koenigstuhl 17, D-69117 Heidelberg (Germany)

2013-07-01T23:59:59.000Z

254

Property:Maximum Wave Height(m) at Wave Period(s) | Open Energy Information  

Open Energy Info (EERE)

Wave Height(m) at Wave Period(s) Wave Height(m) at Wave Period(s) Jump to: navigation, search Property Name Maximum Wave Height(m) at Wave Period(s) Property Type String Pages using the property "Maximum Wave Height(m) at Wave Period(s)" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + 10.0 + 10-ft Wave Flume Facility + 10.0 + 11-ft Wave Flume Facility + 10.0 + 2 2-ft Flume Facility + 10.0 + 3 3-ft Wave Flume Facility + 10.0 + 5 5-ft Wave Flume Facility + 10.0 + 6 6-ft Wave Flume Facility + 10.0 + A Alden Large Flume + 0.0 + Alden Wave Basin + 1.0 + C Chase Tow Tank + 3.1 + Coastal Harbors Modeling Facility + 2.3 + Coastal Inlet Model Facility + 2.3 + D Davidson Laboratory Tow Tank + 4.0 + DeFrees Large Wave Basin + 3.0 + DeFrees Small Wave Basin + 3.0 +

255

A search for the sulphur hexafluoride cation with intense, few cycle laser pulses  

SciTech Connect (OSTI)

It is well established that upon ionization of sulphur hexafluoride, the SF{sub 6}{sup +} ion is never observed in mass spectra. Recent work with ultrashort intense laser pulses has offered indications that when strong optical field are used, the resulting “bond hardening” can induce changes in the potential energy surfaces of molecular cations such that molecular ions that are normally unstable may, indeed, become metastable enough to enable their detection by mass spectrometry. Do intense, ultrashort laser pulses permit formation of SF{sub 6}{sup +}? We have utilized intense pulses of 5 fs, 11 fs, and 22 fs to explore this possibility. Our results are negative: no evidence is discovered for SF{sub 6}{sup +}. However, multiply charged sulphur and fluorine ions from highly charged SF{sub 6}{sup q+} ions are observed that enable us to resolve the controversy regarding the kinetic energy release accompanying formation of F{sup +} fragment ions. Quantum chemical computations of field-distorted potential energy curves of SF{sub 6} and its molecular ion enable us to rationalize our non-observation of SF{sub 6}{sup +}. Our findings have implications for high harmonic generation from SF{sub 6} in the few-cycle regime.

Dota, Krithika; Mathur, Deepak, E-mail: atmol1@tifr.res.in [Tata Institute of Fundamental Research, 1 Homi Bhabha Road, Mumbai 400 005 (India) [Tata Institute of Fundamental Research, 1 Homi Bhabha Road, Mumbai 400 005 (India); Centre for Atomic and Molecular Physics, Manipal University, Manipal 576 104 (India); Dharmadhikari, Aditya K. [Tata Institute of Fundamental Research, 1 Homi Bhabha Road, Mumbai 400 005 (India)] [Tata Institute of Fundamental Research, 1 Homi Bhabha Road, Mumbai 400 005 (India); Dharmadhikari, Jayashree A. [Centre for Atomic and Molecular Physics, Manipal University, Manipal 576 104 (India)] [Centre for Atomic and Molecular Physics, Manipal University, Manipal 576 104 (India); Patra, Kaustuv; Tiwari, Ashwani K. [Indian Institute of Science Education and Research - Kolkata, Mohanpur 741 252 (India)] [Indian Institute of Science Education and Research - Kolkata, Mohanpur 741 252 (India)

2013-11-21T23:59:59.000Z

256

Interactive situation modelling in knowledge-intensive domains  

Science Journals Connector (OSTI)

This paper shows how knowledge from various sources in a knowledge intensive domain can be modelled using principles of ethnography. This is achieved by bridging the symmetry of ignorance gap that exists between process owners and system developers. ... Keywords: ethnography, knowledge intensive domains, requirement engineering, situation modelling, systems modelling

Kiran Jude Fernandes

2008-11-01T23:59:59.000Z

257

Knowledge-Intensive Case-Based Reasoning and Intelligent Tutoring  

E-Print Network [OSTI]

Knowledge-Intensive Case-Based Reasoning and Intelligent Tutoring Agnar Aamodt Department Norway agnar.aamodt@idi.ntnu.no Abstract. Knowledge-intensive CBR assumes that cases are enriched with general domain knowledge. In the system Creek, developed in our group, there is a strong coupling between

Aamodt, Agnar

258

Spectral Intensity Patterns and Vibrational Phase Space Structure  

Science Journals Connector (OSTI)

91 Klamath Hall, Department of Chemistry, University of Oregon, Eugene, Oregon 97403-1253 ... In ref 7, we examined energy patterns of molecules with a 2:1 Fermi resonance between the local stretch and bend of a C?H group. ... The goal is to analyze relative intensities within polyads; the actual experimental intensity falls off sharply with polyad number. ...

Vivian Tyng; Michael E. Kellman

2009-07-17T23:59:59.000Z

259

Optical absorption intensity of semiconductor single-wall carbon nanotubes  

E-Print Network [OSTI]

Optical absorption intensity of semiconductor single-wall carbon nanotubes Y. Oyama1 , R. Saito1. The optical absorption intensity is inversely proportional to the diameter in the unit of per carbon atom of single-wall carbon nanotubes (SWNT) synthesized by alcohol CCVD (ACCVD) method and HiPco method [1

Maruyama, Shigeo

260

Response of GaAs to fast intense laser pulses  

E-Print Network [OSTI]

Motivated by recent experiments, we have performed simulations which show in detail how the electrons and ions in GaAs respond to fast intense laser pulses (with durations of order 100 fs and intensities of order 1-10 TW/cm(2)). The method of tight...

Graves, JS; Allen, Roland E.

1998-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "intensive observation period" 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

Automated Checkpointing for Enabling Intensive Applications on Energy Harvesting Devices  

E-Print Network [OSTI]

Automated Checkpointing for Enabling Intensive Applications on Energy Harvesting Devices Azalia intensive computation on ultra-low power devices with discontinuous energy-harvesting supplies. We devise on a battery-less RF energy-harvester platform. Extensive experiments targeting applications in medical implant

262

The large-scale structure of software-intensive systems  

Science Journals Connector (OSTI)

...necessary to explain the operation of a software-intensive system. If there is anything...software-intensive system that makes the operation of a Turing complete...all state-changing operations upon the system. 26 This is true of...

2012-01-01T23:59:59.000Z

263

Memory Intensive Computing Shahar Kvatinsky, Avinoam Kolodny, and Uri C.  

E-Print Network [OSTI]

Memory Intensive Computing Shahar Kvatinsky, Avinoam Kolodny, and Uri C. Weiser Department, New York 14627, USA Abstract-- Over the past years, new memory technologies such as RRAM, STT present these emerging memory technologies as enablers to the era of memory- intensive computing, which

Friedman, Eby G.

264

Stochastic Local Intensity Loss Models with Interacting Particle Aurelien Alfonsi  

E-Print Network [OSTI]

by a unit increasing time inhomogeneous Markov process, whose deterministic jump intensity is called local (2008) allow to get a stochastic jump intensity while keeping the same marginal laws. These models)) and consider the following dynamics for the stock under a risk-neutral probability: dSt = rStdt + f(Yt)(t, St

Paris-Sud XI, Université de

265

On forbidden high-energy electrons as a source of background in X-ray and gamma-ray observations  

E-Print Network [OSTI]

The study is devoted to a problem of electron-induced contaminant to X-ray and gamma-ray astrophysical measurements on board low-orbiting satellites. We analyzed enhancements of electron fluxes in energy range 100 - 300 keV observed at equatorial and low latitudes by a fleet of NOAA/POES low-orbiting satellites over the time period from 2003 to 2005. It was found that 100-300 keV electron fluxes in the forbidden zone below the inner radiation belt enhanced by several orders of magnitude during geomagnetic storms and/or under strong compressions of the magnetosphere. The enhancements are related to high substorm activity and occurred at any local time. Intense fluxes of the energetic electrons in the forbidden zone can be considered as an essential contaminant to X-ray and gamma-ray measurements at low-latitude and low-altitude orbits.

Suvorova, Alla V

2014-01-01T23:59:59.000Z

266

EIA Energy Efficiency-Commercial Buildings Sector Energy Intensities,  

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

Commercial Buildings Sector Energy Intensities Commercial Buildings Sector Energy Intensities Commercial Buildings Sector Energy Intensities: 1992- 2003 Released Date: December 2004 Page Last Revised: August 2009 These tables provide estimates of commercial sector energy consumption and energy intensities for 1992, 1995, 1999 and 2003 based on the Commercial Buildings Energy Consumption Survey (CBECS). They also provide estimates of energy consumption and intensities adjusted for the effect of weather on heating, cooling, and ventilation energy use. Total Site Energy Consumption (U.S. and Census Region) Html Excel PDF bullet By Principal Building Activity (Table 1a) html Table 1a excel table 1a. pdf table 1a. Weather-Adjusted by Principal Building Activity (Table 1b) html table 1b excel table 1b pdf table 1b.

267

Observational learning in horses  

E-Print Network [OSTI]

OBSERVATIONAL LEARNING IN HORSES A Thesis by KATHERINE LOUISE BAER Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE May 1979 Major Subject: Animal... Science OBSERVATIONAL LEARNING IN HORSES A Thesis by KATHERINE LOUISE BAER Approved as to style and content by: L7 . 5+~ (Chairma of . C mmittee) ) c r (Mem ) YiNicc CJ ~- (Membeh) (Head of Department May 1979 ABSTRACT Observational...

Baer, Katherine Louise

1979-01-01T23:59:59.000Z

268

Atomic Collapse Observed  

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

Scientists Observe Atomic Collapse State Quantum Mechanics Prediction Confirmed in Graphene Using NERSC's Hopper April 26, 2013 | Tags: Hopper, Materials Science Contact: Linda...

269

Hot Pot Field Observations  

SciTech Connect (OSTI)

Map of field observations including depressions, springs, evidence of former springs, travertine terraces and vegetation patterns. Map also contains interpretation of possible spring alignments.

Lane, Michael

2013-06-28T23:59:59.000Z

270

Hot Pot Field Observations  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

Map of field observations including depressions, springs, evidence of former springs, travertine terraces and vegetation patterns. Map also contains interpretation of possible spring alignments.

Lane, Michael

271

Embedding a chaotic signature in a periodic train: can periodic signals be chaotic?  

E-Print Network [OSTI]

We show how a chaotic system can be locked to emit a periodic waveform belonging to its chaotic attractor. We numerically demonstrate our idea in a system composed of a semiconductor laser driven to chaos by optical feedback from a short external cavity. The clue is the injection of an appropriate periodic signal that modulates the phase and amplitude of the intra-cavity radiation, a chaotic analogy of conventional mode-locking. The result is a time process that manifests a chaotic signature embedded in a long-scale periodic train.

Antonio Mecozzi; Cristian Antonelli

2008-12-11T23:59:59.000Z

272

The Spin Periods and Rotational Profiles of Neutron Stars at Birth  

Science Journals Connector (OSTI)

We present results from an extensive set of one- and two-dimensional radiation-hydrodynamic simulations of the supernova core-collapse, bounce, and postbounce phases and focus on the proto-neutron star (PNS) spin periods and rotational profiles as a function of initial iron core angular velocity, degree of differential rotation, and progenitor mass. For the models considered, we find a roughly linear mapping between initial iron core rotation rate and PNS spin. The results indicate that the magnitude of the precollapse iron core angular velocities is the single most important factor in determining the PNS spin. Differences in progenitor mass and degree of differential rotation lead only to small variations in the PNS rotational period and profile. Based on our calculated PNS spins at ~200-300 ms after bounce and assuming angular momentum conservation, we estimate final neutron star rotation periods. We find periods of 1 ms and shorter for initial central iron core periods of 10 s. This is appreciably shorter than what previous studies have predicted and is in disagreement with current observational data from pulsar astronomy. After considering possible spin-down mechanisms that could lead to longer periods, we conclude that there is no mechanism that can robustly spin down a neutron star from ~1 ms periods to the "injection" periods of tens to hundreds of milliseconds observed for young pulsars. Our results indicate that, given current knowledge of the limitations of neutron star spin-down mechanisms, precollapse iron cores must rotate with periods of around 50-100 s to form neutron stars with periods generically near those inferred for the radio pulsar population.

Christian D. Ott; Adam Burrows; Todd A. Thompson; Eli Livne; Rolf Walder

2006-01-01T23:59:59.000Z

273

Silicon nanoparticle synthesis by short-period thermal anneals at atmospheric pressure in argon  

SciTech Connect (OSTI)

Silicon nanoparticles have been studied for a wide variety of applications including nanoelectronic, photovoltaic, and optoelectronic devices. In this work, silicon nanoparticles were synthesized by short-period annealing of silicon-on-insulator substrates to temperatures ranging between 600 and 900 deg. C in argon gas at atmospheric pressure. Two different top silicon layers were deposited by ion-beam sputtering onto oxidized substrates. The thinner 6 nm top layer samples were annealed to temperatures for 30 s periods while thicker 15 nm top layer samples were annealed for 60 s periods. For both sets of samples, nanoparticles were observed to form at all the anneal temperatures through imaging by AFM. One long-period UHV anneal study, with 30-min anneal times, observed nanoparticle formation at temperatures similar to the current work while another similar long-period UHV anneal reported nanoparticle formation only above well-defined formation temperatures that depended upon the starting top layer thickness. In the current work, the average nanoparticle radius was found to increase both with the final anneal temperature and anneal period. For the highest anneal temperatures of the 6 nm top layer samples, a changing surface topography indicated that the thinner Si source layer was becoming depleted and the nanoparticle formation process was nearing completion. No such changes were observed for the thicker 15 nm samples at the same temperatures.

Spencer, Gregory; Anyamesem-Mensah, Benedict; Galloway, Heather C.; Bandyopadhyay, Anup; Frasier, Daniel [Department of Physics, Texas State University-San Marcos, San Marcos, Texas 78666 (United States); Department of Materials Science and Engineering, University of North Texas, Denton, Texas 76207 (United States); Department of Physics, Texas State University-San Marcos, San Marcos, Texas 78666 (United States)

2011-09-15T23:59:59.000Z

274

Going beyond energy intensity to understand the energy metabolism of nations: The case of Argentina  

Science Journals Connector (OSTI)

The link between energy consumption and economic growth has been widely studied in the economic literature. Understanding this relationship is important from both an environmental and a socio-economic point of view, as energy consumption is crucial to economic activity and human environmental impact. This relevance is even higher for developing countries, since energy consumption per unit of output varies through the phases of development, increasing from an agricultural stage to an industrial one and then decreasing for certain service based economies. In the Argentinean case, the relevance of energy consumption to economic development seems to be particularly important. While energy intensity seems to exhibit a U-Shaped curve from 1990 to 2003 decreasing slightly after that year, total energy consumption increases along the period of analysis. Why does this happen? How can we relate this result with the sustainability debate? All these questions are very important due to Argentinean hydrocarbons dependence and due to the recent reduction in oil and natural gas reserves, which can lead to a lack of security of supply. In this paper we study Argentinean energy consumption pattern for the period 1990–2007, to discuss current and future energy and economic sustainability. To this purpose, we developed a conventional analysis, studying energy intensity, and a non conventional analysis, using the Multi-Scale Integrated Analysis of Societal and Ecosystem Metabolism (MuSIASEM) accounting methodology. Both methodologies show that the development process followed by Argentina has not been good enough to assure sustainability in the long term. Instead of improving energy use, energy intensity has increased. The current composition of its energy mix, and the recent economic crisis in Argentina, as well as its development path, are some of the possible explanations.

Marina Recalde; Jesús Ramos-Martin

2012-01-01T23:59:59.000Z

275

Transition Period High Water Marks - May 2009.indd  

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

Period High Water Marks (THWMs) and Above-Rate-Period High Water Mark (Above-RHWM) load data for the transition period for all customers with a CHWM contract. The transition...

276

Superhump periods in the UGSU-type dwarf nova SDSSp J082409.73+493124.4  

E-Print Network [OSTI]

We present observations and analysis of the first reported superoutburst of the dwarf nova SDSSp J082409.73+493124.4 during February/March 2007. From a maximum observed magnitude of 15.4C it declined at 0.09 mag/d for 7 days, flattened out around magnitude 16 for a further 5 days and then returned rapidly to quiescence at magnitude 19.4. The flattening of the light curve late in the outburst was not associated with a re-growth of superhumps. For the first 5 days we observed common superhumps with period 0.06954(5) d, thus confirming its classification as a UGSU-type dwarf nova. This was followed by a phase transition to late superhumps with period 0.06921(6) d. We found a small but persistent signal at 0.0687(6) d which we interpret as the orbital period.

David Boyd; Jeremy Shears; Robert Koff

2007-07-12T23:59:59.000Z

277

Global Lightning Observations  

E-Print Network [OSTI]

Flash Rate Global distribution of lightning from a combined nine years of observations of the NASA OTDGlobal Lightning Observations #12;Optical Transient Detector ( launched April, 1995 ) Lightning Imaging Sensor ( launched November, 1997 ) Lightning Detection from Low Earth Orbit #12;LIS on TRMM #12

California at Berkeley, University of

278

Forward period analysis and the long term simulation of a periodic Hamiltonian system  

E-Print Network [OSTI]

The period of a Morse oscillator and mathematical pendulum system are obtained, accurate to 100 significant digits, by forward period analysis (FPA). From these results, the long-term [0, 10^60] (time unit) solutions, which overlap from the Planck time to the age of the universe, are computed reliably and quickly with a parallel multiple-precision Taylor series (PMT) scheme. The application of FPA to periodic systems can reduce the computation loops of long-term reliable simulation from O(t^(1+1/M)) to O(lnt+t/h0) where T is the period, M the order and h0 a constant step-size. This scheme provides a way to generate reference solutions to test other schemes' long-term simulations.

Pengfei Wang

2014-10-23T23:59:59.000Z

279

EIS-0403: Notice to Extend Public Comment Period | Department...  

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

to Extend Public Comment Period EIS-0403: Notice to Extend Public Comment Period Solar Energy Development in Six Southwestern States The Department of Energy and the Bureau of...

280

EA-1566: Notice of Comment Period Extension | Department of Energy  

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

EA-1566: Notice of Comment Period Extension Proposed Infrastructure Improvements for the Yucca Mountain Project, Nevada DOE is extending the public comment period for the Yucca...

Note: This page contains sample records for the topic "intensive observation period" 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

Emissions from Idling Trucks for Extended Time Periods | Department...  

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

Idling Trucks for Extended Time Periods Emissions from Idling Trucks for Extended Time Periods 2002 DEER Conference Presentation: Oak Ridge National Laboratory 2002deerlewis.pdf...

282

EA-1919: Notice of Public Comment Period Extension | Department...  

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

of Public Comment Period Extension EA-1919: Notice of Public Comment Period Extension Recycling of Scrap Metals Originating from Radiological Areas DOE has extended the public...

283

PARS II Process Document - DOE Period Close | Department of Energy  

Office of Environmental Management (EM)

by the Office of Acquisition and Project Management to prepare APM DepSec Monthly Status Report, finalize DOE close period package, and perform reporting period close...

284

Down-hole periodic seismic generator  

DOE Patents [OSTI]

A down hole periodic seismic generator system is disclosed for transmitting variable frequency, predominantly shear-wave vibration into earth strata surrounding a borehole. The system comprises a unitary housing operably connected to a well head by support and electrical cabling and contains clamping apparatus for selectively clamping the housing to the walls of the borehole. The system further comprises a variable speed pneumatic oscillator and a self-contained pneumatic reservoir for producing a frequency-swept seismic output over a discrete frequency range.

Hardee, H.C.; Hills, R.G.; Striker, R.P.

1982-10-28T23:59:59.000Z

285

Prime power subgroups in certain periodic groups  

E-Print Network [OSTI]

P$38E POlfRR SU89%(UPS IM CENPTAI? PERIODIC QROU1'8 A Thee1 ~ ~Ra Paalllae kxeendaria Lpptoved aa to style and oontent by& 6. P. Chairaen of Coaalttee C. c. aden visor a of epee teen t The author wishes to express his gratitude... groups will serve as a starting point. LENMA 1. 1. Let 0 be a group not the 1dentity alone. Then 0 has no proper subgroups 1f and only if 0 is s finite oyolio group of prime order. Suppose that 0 is a finite oyolio group of prime order p...

Armendariz, Efraim Pacillas

2012-06-07T23:59:59.000Z

286

Removal of intensive agriculture from the landscape improves aquatic ecosystem health  

Science Journals Connector (OSTI)

Abstract The 20th century witnessed substantial increases in the intensity of agricultural land management. Increased agricultural intensity leads to degradation of aquatic ecosystems. Removal of intensive agriculture from the landscape is rare; however this occurred in the Ovens Valley, Victoria, Australia when its 150-year-old tobacco industry was closed in 2006. The present study examined stress in aquatic biota in the Ovens River and associated wetlands and dams before (1988–89) and after (2010) the tobacco closure. The endpoint observed was incidence of morphological deformities in chironomid (“non-biting midge”) larvae. A significant reduction in deformity incidence, particularly in the mentum (teeth), was observed in larvae collected from waters near or adjacent to tobacco cultivation, between 1988/89 and 2010. Similarly, there is a significant decline in the incidence of deformities in the pecten epipharyngis between 1988/89 and 2010. Ninety-six pesticides were also measured in sediments in 2010, of which only the persistent organochlorines DDT, DDE, DDD and dieldrin were detected. Some analysis of pesticides in sediments was conducted in 1988 but the results were inconclusive because the detection limits were inadequate and not all pesticides being used in tobacco cultivation at that time were analysed. The decline in morphological deformities correlates with the cessation of tobacco cultivation and indicates a recovery in ecosystem health.

Bryant Gagliardi; Vincent Pettigrove

2013-01-01T23:59:59.000Z

287

THz laser based on quasi-periodic AlGaAs superlattices  

SciTech Connect (OSTI)

The use of quasi-periodic AlGaAs superlattices as an active element of a quantum cascade laser of terahertz range is proposed and theoretically investigated. A multi-colour emission, having from three to six peaks of optical gain, is found in Fibonacci, Thue-Morse, and figurate superlattices in electric fields of intensity F = 11 - 13 kV cm{sup -1} in the frequency range f = 2 - 4 THz. The peaks depend linearly on the electric field, retain the height of 20 cm{sup -1}, and strongly depend on the thickness of the AlGaAs-layers. (lasers)

Malyshev, K V [N.E. Bauman Moscow State Technical University, Moscow (Russian Federation)

2013-06-30T23:59:59.000Z

288

THE DISCOVERY OF PERIODIC MODULATIONS IN THE OPTICAL SPECTRA OF GALAXIES, POSSIBLY DUE TO ULTRARAPID LIGHT BURSTS FROM THEIR MASSIVE CENTRAL BLACK HOLES  

SciTech Connect (OSTI)

A Fourier transform analysis of 2.5 million spectra in the SDSS survey was carried out to detect periodic modulations contained in the intensity versus frequency spectrum. A statistically significant signal was found for 223 galaxies, while the spectra of 0.9 million galaxies were observed. A plot of the periods as a function of redshift clearly shows that the effect is real without any doubt, because the modulations are quantized at two base periods that increase with redshift in two very tight parallel linear relations. We suggest that this result could be caused by light bursts separated by times on the order of 10{sup -13} s, but other causes may be possible. We investigate the hypothesis that the modulation is generated by the Fourier transform of spectral lines, but conclude that this hypothesis is not valid. Although the light burst suggestion implies absurdly high temperatures, it is supported by the fact that the Crab pulsar also has extremely short unresolved pulses (<0.5 ns) that imply similarly high temperatures. Furthermore, the radio spectrum of the Crab pulsar also has spectral bands similar to those that have been detected. Finally, decreasing the signal-to-noise threshold of detection gives results consistent with beamed signals having a small beam divergence, as expected from non-thermal sources that send a jet, like those seen in pulsars. Considering that galaxy centers contain massive black holes, exotic black hole physics may be responsible for the spectral modulation. However, at this stage, this idea is only a hypothesis to be confirmed with further work.

Borra, Ermanno F., E-mail: borra@phy.ulaval.ca [Centre d'Optique, Photonique et Laser, Departement de Physique, Universite Laval, Quebec, G1K 7P4 Quebec (Canada)

2013-09-10T23:59:59.000Z

289

Periodic gravitational waves from small cosmic string loops  

Science Journals Connector (OSTI)

We consider a population of small, high-velocity cosmic string loops. We assume the typical length of these loops is determined by the gravitational radiation scale and use the results of Polchinski and Rocha which pointed out their highly relativistic nature. A study of the gravitational wave emission from such a population is carried out. The large Lorentz boost involved causes the lowest harmonics of the loops to fall within the frequency band of the Laser Interferometer Gravitational Wave Observatory detector. Because of this feature the gravitational waves emitted by such loops can be detected in a periodic search rather than in burst or stochastic analysis. It is shown that, for interesting values of the string tension (10-10?G??10-8), the detector can observe loops at reasonably high redshifts and that detection is, in principle, possible. We compute the number of expected observations produced by such a process. For a 10 h search we find that this number is of order O(10-4). This is a consequence of the low effective number density of the loops traveling along the line of sight. However, small probabilities of reconnection and longer observation times can improve the result.

Florian Dubath and Jorge V. Rocha

2007-07-02T23:59:59.000Z

290

THE DECAYING LONG-PERIOD OSCILLATION OF A STELLAR MEGAFLARE  

SciTech Connect (OSTI)

We analyze and interpret the oscillatory signal in the decay phase of the U-band light curve of a stellar megaflare observed on 2009 January 16 on the dM4.5e star YZ CMi. The oscillation is well approximated by an exponentially decaying harmonic function. The period of the oscillation is found to be 32 minutes, the decay time about 46 minutes, and the relative amplitude 15%. As this observational signature is typical of the longitudinal oscillations observed in solar flares at extreme ultraviolet and radio wavelengths, associated with standing slow magnetoacoustic waves, we suggest that this megaflare may be of a similar nature. In this scenario, macroscopic variations of the plasma parameters in the oscillations modulate the ejection of non-thermal electrons. The phase speed of the longitudinal (slow magnetoacoustic) waves in the flaring loop or arcade, the tube speed, of about 230 km s{sup -1} would require a loop length of about 200 Mm. Other mechanisms, such as standing kink oscillations, are also considered.

Anfinogentov, S. [Institute of Solar Terrestrial Physics, Irkutsk (Russian Federation); Nakariakov, V. M. [Centre for Fusion, Space and Astrophysics, Physics Department, University of Warwick, Coventry CV4 7AL (United Kingdom); Mathioudakis, M. [Astrophysics Research Centre, School of Mathematics and Physics, Queen's University, Belfast BT7 1NN (United Kingdom); Van Doorsselaere, T. [Centre for Mathematical Plasma Astrophysics, Department of Mathematics, KU Leuven, Celestijnenlaan 200B bus 2400, B-3001 Leuven (Belgium); Kowalski, A. F., E-mail: anfinogentov@iszf.irk.ru [NASA Goddard Space Flight Center, Code 671, Greenbelt, MD 20771 (United States)

2013-08-20T23:59:59.000Z

291

The Joint Owners' Group Program on MOV Periodic Verification  

SciTech Connect (OSTI)

To address long-term motor operated valve (MOV) performance, the Babcock and Wilcox, Boiling Water Reactor, Combustion Engineering and Westinghouse Groups (B and WOG, BWROG, CEOG and WOG) teamed in 1997 to form the Joint Group (JOG) MOV Periodic Verification (PV) Program. This program is nearing completion, with 98 of the 103 operating U.S. reactor units participating. The goal of the program is to provide a justified approach for periodically testing MOVs, that addresses potential degradation. The program defines an interim approach that specifies periodic tests without flow and differential pressure (DP), at a frequency determined by the s risk significance and margin. To justify this approach, each participating plant is also DP testing 2 valves per unit. Each valve is tested three times over five years, with at least one year between tests. The data are evaluated jointly to confirm or adjust the initial guidance. The majority of the tests are complete and conclusions are coming into focus. For gate valves, when the valve factor is initially low, increases can occur between one test and a later test. One common way that the valve factor becomes low is disassembling and reassembling the valve. The data show that, following valve disassembly and re-assembly, the valve factor tends to be reduced, and it tends to increase in subsequent service. Outside of the valves disassembled and reassembled, some gate valves have low valve factors apparently because the valves are not stroked under DP conditions in service. For butterfly valves, there have been no observations of degradation in bearing friction coefficient. A few valves with bronze bearings in raw (untreated) water service have shown significant variations in friction, but they tend to be a mixture of increases and decreases with no pattern of degradation. Globe valves, both unbalanced and balanced, tend to show a constant valve factor with no indication of degradation. (authors)

Damerell, Paul S.; Spears, Todd A. [MPR Associates Inc., 140 Mustang Circle, Simpsonville, SC 29681 (United States)

2002-07-01T23:59:59.000Z

292

On a periodicity measure and superoscillations  

E-Print Network [OSTI]

The phenomenon of superoscillation, where band limited signals can oscillate over some time period with a frequency higher than the band limit, is not only very interesting but it also seems to offer many practical applications. The first reason is that the superoscillation frequency can be exploited to perform tasks beyond the limits imposed by the lower bandwidth of the signal. The second reason is that it is generic and applies to any wave form, be it optical, electrical, sonic, or quantum mechanical. For practical applications, it is important to overcome two problems. The first problem is that an overwhelming proportion of the energy goes into the non superoscillating part of the signal. The second problem is the control of the shape of the superoscillating part of the signal. The first problem has been recently addressed by optimization of the super oscillation yield, the ratio of the energy in the superoscillations to the total energy of the signal. The second problem may arise when the superoscillation, is to mimic a high frequency purely perodic signal. This may be required, for example, when a superoscillating force is to drive a harmonic oscillator at a high resonance frequency. In this paper the degree of periodicity of a signal is defined and applied to some yield optimized superoscillating signals.

Nehemia Schwartz; Moshe Schwartz

2014-02-13T23:59:59.000Z

293

Electromagnetic Siegert states for periodic dielectric structures  

E-Print Network [OSTI]

The formalism of Siegert states to describe the resonant scattering in quantum theory is extended to the resonant scattering of electromagnetic waves on periodic dielectric arrays. The excitation of electromagnetic Siegert states by an incident wave packet and their decay is studied. The formalism is applied to develop a theory of coupled electromagnetic resonances arising in the electromagnetic scattering problem for two such arrays separated by a distance 2h (or, generally, when the physical properties of the scattering array depend on a real coupling parameter h). Analytic properties of Siegert states as functions of the coupling parameter h are established by the Regular Perturbation Theorem which is an extension the Kato-Rellich theorem to the present case. By means of this theorem, it is proved that if the scattering structure admits a bound state in the radiation continuum at a certain value of the coupling parameter h, then there always exist regions within the structure in which the near field can be amplified as much as desired by adjusting the value of h. This establishes a rather general mechanism to control and amplify optical nonlinear effects in periodically structured planar structures possessing a nonlinear dielectric susceptibility.

Friends R. Ndangali; Sergei V. Shabanov

2011-08-09T23:59:59.000Z

294

Influence of Intense Beam in High Pressure Hydrogen Gas Filled RF Cavities  

SciTech Connect (OSTI)

The influence of an intense beam in a high-pressure gas filled RF cavity has been measured by using a 400 MeV proton beam in the Mucool Test Area at Fermilab. The ionization process generates dense plasma in the cavity and the resultant power loss to the plasma is determined by measuring the cavity voltage on a sampling oscilloscope. The energy loss has been observed with various peak RF field gradients (E), gas pressures (p), and beam intensities in nitrogen and hydrogen gases. Observed RF energy dissipation in single electron (dw) in N{sub 2} and H{sub 2} gases was 2 10{sup -17} and 3 10{sup -17} Joules/RF cycle at E/p = 8 V/cm/Torr, respectively. More detailed dw measurement have been done in H{sub 2} gas at three different gas pressures. There is a clear discrepancy between the observed dw and analytical one. The discrepancy may be due to the gas density effect that has already been observed in various experiments.

Yonehara, K.; Chung, M.; Collura, M.G.; Jana, M.R.; Leonova, M.; Moretti, A.; Popovic, M.; Schwarz, T.; Tollestrup, A.; /Fermilab; Johnson, R.P.; Franagan, G.; /Muons, Inc. /IIT

2012-05-01T23:59:59.000Z

295

Period Changes in Ultra-compact Double White Dwarfs  

E-Print Network [OSTI]

In recent years there has been much interest in the nature of two stars, V407 Vul and RXJ0806+1527, which are widely thought to be binary white dwarfs of very short orbital period, 570 and 321 seconds respectively. As such they should be strong sources of gravitational waves and possible ancestors of the accreting AM CVn stars. Monitoring at X-ray and optical wavelengths has established that the period of each star is decreasing, at rates compatible with that expected from gravitational radiation. This has been taken to support the ``unipolar inductor'' model in which the white dwarfs are detached and the X-rays produced by the dissipation of magnetically-induced electric currents. In this paper we show that this interpretation is incorrect because it ignores associated torques which transfer angular momentum between the spin of the magnetic white dwarf and the orbit. We show that this torque is 10^5 times larger than the GR term in the case of V407 Vul, and 10 times larger for RXJ0806+1527. For V407 Vul, the unipolar inductor model can only survive if the white dwarf spins 100 times faster than the orbit. Since this could only come about through accretion, the validity of the unipolar inductor appears questionable for this star. We also consider whether accretion models can fit the observed spin-up, concluding that they can, provided that a mechanism exists for driving the mass transfer rate away from its equilibrium value.

T. R. Marsh; G. Nelemans

2005-08-10T23:59:59.000Z

296

Investigation of laser-driven proton acceleration using ultra-short, ultra-intense laser pulses  

SciTech Connect (OSTI)

We report optimization of laser-driven proton acceleration, for a range of experimental parameters available from a single ultrafast Ti:sapphire laser system. We have characterized laser-generated protons produced at the rear and front target surfaces of thin solid targets (15 nm to 90 {mu}m thicknesses) irradiated with an ultra-intense laser pulse (up to 10{sup 20} W Dot-Operator cm{sup -2}, pulse duration 30 to 500 fs, and pulse energy 0.1 to 1.8 J). We find an almost symmetric behaviour for protons accelerated from rear and front sides, and a linear scaling of proton energy cut-off with increasing pulse energy. At constant laser intensity, we observe that the proton cut-off energy increases with increasing laser pulse duration, then roughly constant for pulses longer than 300 fs. Finally, we demonstrate that there is an optimum target thickness and pulse duration.

Fourmaux, S.; Gnedyuk, S.; Lassonde, P.; Payeur, S.; Pepin, H.; Kieffer, J. C. [INRS-EMT, Universite du Quebec, 1650 Lionel Boulet, Varennes, Quebec J3X 1S2 (Canada); Buffechoux, S.; Albertazzi, B. [INRS-EMT, Universite du Quebec, 1650 Lionel Boulet, Varennes, Quebec J3X 1S2 (Canada); LULI, UMR 7605, CNRS - CEA - Universite Paris 6 - Ecole Polytechnique, 91128 Palaiseau (France); Capelli, D.; Antici, P. [LULI, UMR 7605, CNRS - CEA - Universite Paris 6 - Ecole Polytechnique, 91128 Palaiseau (France); Dipartimento SBAI, Sapienza, Universita di Roma, Via Scarpa 16, 00161 Roma (Italy); Levy, A.; Fuchs, J. [LULI, UMR 7605, CNRS - CEA - Universite Paris 6 - Ecole Polytechnique, 91128 Palaiseau (France); Lecherbourg, L.; Marjoribanks, R. S. [Department of Physics and Institute for Optical Sciences, University of Toronto, Toronto, Ontario M5S 1A7 (Canada)

2013-01-15T23:59:59.000Z

297

Electric dipole-forbidden nuclear transitions driven by super-intense laser fields  

E-Print Network [OSTI]

Electric dipole-forbidden transitions of nuclei interacting with super-intense laser fields are investigated considering stable isotopes with suitable low-lying first excited states. Different classes of transitions are identified, and all magnetic sublevels corresponding to the near-resonantly driven nuclear transition are included in the description of the nuclear quantum system. We find that large transition matrix elements and convenient resonance energies qualify nuclear M1 transitions as good candidates for the coherent driving of nuclei. We discuss the implications of resonant interaction of intense laser fields with nuclei beyond the dipole approximation for the controlled preparation of excited nuclear states and important aspects of possible experiments aimed at observing these effects.

Adriana Pálffy; Jörg Evers; Christoph H. Keitel

2008-04-14T23:59:59.000Z

298

Electric-dipole-forbidden nuclear transitions driven by super-intense laser fields  

Science Journals Connector (OSTI)

Electric-dipole-forbidden transitions of nuclei interacting with super-intense laser fields are investigated by considering stable isotopes with suitable low-lying first excited states. Different classes of transitions are identified, and all magnetic sublevels corresponding to the near-resonantly driven nuclear transition are included in the description of the nuclear quantum system. We find that large transition matrix elements and convenient resonance energies qualify nuclear M1 transitions as good candidates for the coherent driving of nuclei. We discuss the implications of resonant interaction of intense laser fields with nuclei beyond the dipole approximation for the controlled preparation of excited nuclear states and important aspects of possible experiments aimed at observing these effects.

Adriana Pálffy, Jörg Evers, and Christoph H. Keitel

2008-04-11T23:59:59.000Z

299

Experimental Parameters for a Cerium 144 Based Intense Electron Antineutrino Generator Experiment at Very Short Baselines  

E-Print Network [OSTI]

The standard three-neutrino oscillation paradigm, associated with small squared mass splittings > 0.01 eV^2, and being insensitive to standard weak interactions. Precision measurements at very short baselines (5 to 15 m) with intense MeV electronic antineutrino emitters can be used to probe these anomalies. In this article, the expected antineutrino signal and backgrounds of a generic experiment which consists of deploying an intense beta minus radioactive source inside or in the vicinity of a large liquid scintillator detector are studied. The technical challenges to perform such an experiment are identified, along with quantifying the possible source and detector induced systematics, and their impact on the sensitivity to the observation of neutrino oscillations at short baselines.

Gaffiot, J; Mention, G; Vivier, M; Cribier, M; Durero, M; Fischer, V; Letourneau, A; Dumonteil, E; Saldikov, I S; Tikhomirov, G V

2014-01-01T23:59:59.000Z

300

Experimental evidence of planar channeling in a periodically bent crystal  

E-Print Network [OSTI]

The usage of a Crystalline Undulator (CU) has been identified as a promising solution for generating powerful and monochromatic $\\gamma$-rays. A CU was fabricated at SSL through the grooving method, i.e., by the manufacturing of a series of periodical grooves on the major surfaces of a crystal. The CU was extensively characterized both morphologically via optical interferometry at SSL and structurally via X-ray diffraction at ESRF. Then, it was finally tested for channeling with a 400 GeV/c proton beam at CERN. The experimental results were compared to Monte Carlo simulations. Evidence of planar channeling in the CU was firmly observed. Finally, the emission spectrum of the positron beam interacting with the CU was simulated for possible usage in currently existing facilities.

Bagli, E; Bellucci, V; Berra, E; Camattari, R; De Salvador, D; Germogli, G; Guidi, V; Lanzoni, L; Lietti, D; Mazzolari, A; Prest, M; Tikhomirov, V V; Vallazza, E

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "intensive observation period" 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

Best Management Practice: Other Water Intensive Processes | Department of  

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

Best Management Practice: Other Water Intensive Processes Best Management Practice: Other Water Intensive Processes Best Management Practice: Other Water Intensive Processes October 8, 2013 - 9:48am Addthis Many water using processes beyond the previously covered best management practices (BMPs) are found at Federal facilities, including vehicle wash systems, maintenance services, cleaning/laundry services, single pass air conditioners, water softening systems, and others. Identify and analyze all water intensive processes for potential efficiency improvements. Overview Laundry facilities are often found at Federal facilities. The laundry facility may be a self-serve laundry where residents and personnel wash their own clothing, a commercial-type laundry service where residents drop off laundry to be washed or dry cleaned, or an industrial laundry facility

302

Fermilab | Science at Fermilab | Experiments & Projects | Intensity  

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

Intensity Frontier Intensity Frontier Experiments at the Intensity Frontier ArgoNeuT MINERvA MiniBooNE MINOS NOvA LBNE Cosmic Frontier Proposed Projects and Experiments ArgoNeuT ArgoNeut detector at Proton Assembly Building Intensity Frontier ArgoNeuT The Argon Neutrino Teststand or ArgoNeuT detector, nicknamed for Jason and the Argonauts of Greek mythology, is a liquid argon neutrino detector at Fermilab. Argon is a noble, non-toxic element that in its gaseous form constitutes about 1 percent of air. It exists as a colorless liquid only in the narrow temperature range of minus 186 to minus 189 degrees Celsius. Neutrinos passing through a large volume of argon can interact with an argon atom, producing secondary particles such as muons and protons, which then ionize other argon atoms. An electric field within the detector causes

303

Estimating material and energy intensities of urban areas  

E-Print Network [OSTI]

The objective of this thesis is to develop methods to estimate, analyze and visualize the resource intensity of urban areas. Understanding the resource consumption of the built environment is particularly relevant in cities ...

Quinn, David James, Ph. D. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

304

Magnesium-Intensive Front End Sub-Structure Development  

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

Project ID "LM077" USAMP AMP800 1 2013 DOE Merit Review Presentation Alan A. Luo General Motors Global Research and Development May 16, 2013 Magnesium-Intensive Front End...

305

China energy issues : energy intensity, coal liquefaction, and carbon pricing  

E-Print Network [OSTI]

In my dissertation I explore three independent, but related, topics on China's energy issues. First, I examine the drivers for provincial energy-intensity trends in China, and finds that technology innovation is the key ...

Wu, Ning, Ph. D. Massachusetts Institute of Technology

2011-01-01T23:59:59.000Z

306

Energy intensity in China's iron and steel sector  

E-Print Network [OSTI]

In this study, I examine the spatial and economic factors that influence energy intensity in China's iron and steel sector, namely industrial value added, renovation investment, coke consumption, and local coke supply. ...

Xu, Jingsi, M.C.P. Massachusetts Institute of Technology

2011-01-01T23:59:59.000Z

307

Capacity planning and admission control policies for intensive care units  

E-Print Network [OSTI]

Poor management of the patient flow in intensive care units (ICUs) causes service rejections and presents significant challenges from the standpoint of capacity planning and management in ICUs. This thesis reports on the ...

Chaiwanon, Wongsakorn

2010-01-01T23:59:59.000Z

308

Process and dataflow control in distributed data-intensive systems  

Science Journals Connector (OSTI)

In dataflow architectures, each dataflow operation is typically executed on a single physical node. We are concerned with distributed data-intensive systems, in which each base (i.e., persistent) set of data has been declustered over many physical ...

W. Alexander; G. Copeland

1988-06-01T23:59:59.000Z

309

Segmentation and recovery of SHGCs from a real intensity image  

Science Journals Connector (OSTI)

We address the problem of scene segmentation and shape recovery from a single real intensity image. Solving this problem is central to obtaining 3-D scene descriptions in realistic applications where perfect data...

Mourad Zerroug; Ramakant Nevatia

1994-01-01T23:59:59.000Z

310

Probabilistic PGA and Arias Intensity maps of Kyrgyzstan (Central Asia)  

Science Journals Connector (OSTI)

New probabilistic seismic hazard and Arias Intensity maps have beendeveloped for the territory of the Kyrgyz Republic and bordering regions.Data were mainly taken from the seismic catalogue of Kyrgyzstan and p...

K. Abdrakhmatov; H.-B. Havenith; D. Delvaux; D. Jongmans…

2003-04-01T23:59:59.000Z

311

Intensity targets: implications for the economic uncertainties of emissions trading  

Science Journals Connector (OSTI)

Intensity targets that adjust to economic growth are discussed as one option to control greenhouse gas emissions without strongly affecting economic growth and with less uncertain economic cost than absolute t...

Sonja Peterson

2008-01-01T23:59:59.000Z

312

High energy density physics generated by intense heavy ion beams  

Science Journals Connector (OSTI)

Intense ion beams from accelerators are now available to generate high energy density matter and to study astrophysical phenomena in the laboratory under controlled and reproducible conditions. A detailed unde...

D. H. H. Hoffmann; V. E. Fortov; M. Kuster; V. Mintsev…

2009-08-01T23:59:59.000Z

313

Atmospheric Temperature Effect for ? Mesons Observed at a Depth of 846 m.w.e.  

Science Journals Connector (OSTI)

The experiment reported was a measurement of the effect of variations in atmospheric temperatures on the intensity of ? mesons observed underground at a depth of 846 m.w.e. The average energy of these particles is known to be ?2×1011 ev. A total of ?1.2×106 coincidences, between two large trays of Geiger counters located in a salt mine, was collected over a two-year period. The correlation between variations in counting rate and simultaneous variations in effective atmospheric temperature was analyzed. The effective temperature was determined from radiosonde measurements of atmospheric temperatures at pressure levels up to 20 millibars performed by a U. S. Air Force weather observation unit near the salt mine. The resulting temperature coefficient is 0.22±0.06 percent per degree and the correlation coefficient is 0.75. The results are compared with those obtained from similar measurements at 1574 m.w.e. and with the theoretical values of the temperature coefficient derived from various schemes describing the production of ? mesons with high energies.

Noah Sherman

1954-01-01T23:59:59.000Z

314

Transverse spreading of electrons in high-intensity laser fields  

E-Print Network [OSTI]

We show that for collisions of electrons with a high-intensity laser, discrete photon emissions introduce a transverse beam spread which is distinct from that due to classical (or beam shape) effects. Via numerical simulations, we show that this quantum induced transverse momentum gain of the electron is manifest in collisions with a realistic laser pulse of intensity within reach of current technology, and we propose it as a measurable signature of strong-field quantum electrodynamics.

D. G. Green; C. N. Harvey

2014-03-18T23:59:59.000Z

315

Low-intensity beam diagnostics with particle detectors  

SciTech Connect (OSTI)

The measure of low intensity beams at low-medium energy is one of the major challenge in beam diagnostics. This subject is of great interest for the design of accelerator-based medical and radioactive beam facilities. In this paper we discuss new developments in image-based devices to measure low-intensity beams. All the investigated devices must guarantee measurement of the total beam current and its transverse distribution. {copyright} {ital 1997 American Institute of Physics.}

Rovelli, A.; Ciavola, G.; Cuttone, G.; Finocchiaro, P.; Raia, G. [INFN-LNS, Via S. Sofia 44/A Catania, 95125 (Italy); De Martinis, C.; Giove, D. [INFN-LASA, Via F.lli Cervi 201 Segrate (Midway Islands), 20090 (Italy)

1997-01-01T23:59:59.000Z

316

MATERIAL STUDIES FOR PULSED HIGH-INTENSITY PROTON BEAM TARGETS  

E-Print Network [OSTI]

PLAN MATERIAL STUDIES FOR PULSED HIGH-INTENSITY PROTON BEAM TARGETS Nicholas Simos, Harold Kirk and removal from the target system ·Target thermo-mechanical response from energetic, high intensity protons are: ·Inconel-718 ·Aluminum-3000 ·Havar ·Ti-6Al-6V ·Graphite (ATJ) ·Carbon-Carbon ·SuperInvar #12

McDonald, Kirk

317

Vacuum self-focussing of very intense laser beams  

E-Print Network [OSTI]

We argue that long-range photon-photon attraction induced by the dipole interaction of two electron-positron loops can lead to "vacuum self-focussing" of very intense laser beams. The focussing angle theta(F) is found to increase with the beam intensity I as theta(F) I^(4/3); for the laser beams available at present or in the near future, theta(F) 10^(-10)--10^(-7).

Dmitri Kharzeev; Kirill Tuchin

2007-02-21T23:59:59.000Z

318

Tunable Radiation Source by Coupling Laser-Plasma-Generated Electrons to a Periodic Structure  

SciTech Connect (OSTI)

Near-infrared radiation around 1000 nm generated from the interaction of a high-density MeV electron beam, obtained by impinging an intense ultrashort laser pulse on a solid target, with a metal grating is observed experimentally. Theoretical modeling and particle-in-cell simulation suggest that the radiation is caused by the Smith-Purcell mechanism. The results here indicate that tunable terahertz radiation with tens GV/m field strength can be achieved by using appropriate grating parameters.

Jin, Z. [Photon Pioneers Center, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871 (Japan); Chen, Z. L.; Kon, A.; Nakatsutsumi, M. [Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871 (Japan); Zhuo, H. B. [Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871 (Japan); School of Science, National University of Defense Technology, Changsha 410073 (China); Wang, H. B.; Zhang, B. H.; Gu, Y. Q.; Wu, Y. C.; Zhu, B.; Wang, L. [National Key Laboratory of Laser Fusion, CAEP, Mianyang 621900 (China); Yu, M. Y. [Institute for Fusion Theory and Simulation, Zhejiang University, Hangzhou 310027 (China); Institute for Theoretical Physics I, Ruhr University, Bochum D-44780 (Germany); Sheng, Z. M. [Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 (China); Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100080 (China); Kodama, R. [Photon Pioneers Center, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871 (Japan); Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871 (Japan); Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871 (Japan)

2011-12-23T23:59:59.000Z

319

A ground level gamma-ray burst observed in association with rocket-triggered lightning  

E-Print Network [OSTI]

A ground level gamma-ray burst observed in association with rocket-triggered lightning J. R. Dwyer 2004; published 13 March 2004. [1] We report the observation of an intense gamma-ray burst observed lightning channel with gamma-ray energies extending up to more than 10 MeV. The burst consisted of 227

Florida, University of

320

Measuring energy efficiency: Is energy intensity a good evidence base?  

Science Journals Connector (OSTI)

Abstract There is a widespread assumption in energy statistics and econometrics that energy intensity and energy efficiency are equivalent measures of energy performance of economies. The paper points to the discrepancy between the engineering concept of energy efficiency and the energy intensity as it is understood in macroeconomic statistics. This double discrepancy concerns definitions (while engineering concept of energy efficiency is based on the thermodynamic definition, energy intensity includes economic measures) and use. With regard to the latter, the authors conclude that energy intensity can only provide indirect and delayed evidence of technological and engineering energy efficiency of energy conversion processes, which entails shortcomings for management and policymaking. Therefore, we suggest to stop considering subsectoral, sectoral and other levels of energy intensities as aggregates of lower-level energy efficiency. It is suggested that the insufficiency of energy intensity indicators can be compensated with the introduction of thermodynamic indicators describing energy efficiency at the physical, technological, enterprise, sub-sector, sectoral and national levels without references to any economic or financial parameters. Structured statistical data on thermodynamic efficiency is offered as a better option for identifying break-through technologies and technological bottle-necks that constrain efficiency advancements. It is also suggested that macro-level thermodynamic indicators should be based on the thermodynamic first law efficiency and the energy quality problem may be left to enterprise-level thermoeconomic optimization.

L. Proskuryakova; A. Kovalev

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "intensive observation period" 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

Mo Year Report Period: EIA ID NUMBER:  

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

Version No: 2013.01 Mo Year Report Period: EIA ID NUMBER: http://www.eia.gov/survey/form/eia_14/instructions.pdf Mailing Address: Secure File Transfer option available at: (e.g., PO Box, RR) https://signon.eia.doe.gov/upload/noticeoog.jsp Electronic Transmission: The PC Electronic Zip Code - Data Reporting Option (PEDRO) is available. If interested in software, call (202) 586-9659. Email form to: OOG.SURVEYS@eia.doe.gov - - - - Fax form to: (202) 586-9772 Mail form to: Oil & Gas Survey Email address: U.S. Department of Energy Ben Franklin Station PO Box 279 Washington, DC 20044-0279 Questions? Call toll free: 1-800-638-8812 PADD 4 Type of Report (Check One ): (Thousands of dollars) (Thousands of barrels) PADD 2 PADD 3 PAD DISTRICT (a) Revision to Report:

322

Steady periodic gravity waves with surface tension  

E-Print Network [OSTI]

In this paper we consider two-dimensional, stratified, steady water waves propagating over an impermeable flat bed and with a free surface. The motion is assumed to be driven by capillarity (that is, surface tension) on the surface and a gravitational force acting on the body of the fluid. We prove the existence of global continua of classical solutions that are periodic and traveling. This is accomplished by first constructing a 1-parameter family of laminar flow solutions, $\\mathcal{T}$, then applying bifurcation theory methods to obtain local curves of small amplitude solutions branching from $\\mathcal{T}$ at an eigenvalue of the linearized problem. Each solution curve is then continued globally by means of a degree theoretic theorem in the spirit of Rabinowitz. Finally, we complement the degree theoretic picture by proving an alternate global bifurcation theorem via the analytic continuation method of Dancer.

Samuel Walsh

2009-11-06T23:59:59.000Z

323

Measuring well hydraulic connectivity in fractured bedrock using periodic slug tests  

Science Journals Connector (OSTI)

Summary Periodic hydraulic experiments were conducted in a five-spot well cluster completed in a single bedding plane fracture. Tests were performed by using a winch-operated slug (submerged solid cylinder) to create a periodic head disturbance in one well and observing the phase shift and attenuation of the head response in the remaining wells. Transmissivity (T) and storativity (S) were inverted independently from head response. Inverted T decreased and S increased with oscillation period. Estimated S was more variable among well pairs than T, suggesting S may be a better estimator of hydraulic connectivity among closely spaced wells. These estimates highlighted a zone of poor hydraulic connection that was not identified by a constant rate test conducted in the same wells. Periodic slug tests appear to be a practical and effective technique for establishing local scale spatial variability in hydraulic parameters.

Eric Guiltinan; Matthew W. Becker

2015-01-01T23:59:59.000Z

324

SPECTROSCOPIC EVIDENCE FOR A 5.4 MINUTE ORBITAL PERIOD IN HM CANCRI  

SciTech Connect (OSTI)

HM Cancri is a candidate ultracompact binary white dwarf with an apparent orbital period of only 5.4 minutes, as suggested by X-ray and optical light-curve modulations on that period, and by the absence of longer-period variability. In this Letter, we present Keck-I spectroscopy which shows clear modulation of the helium emission lines in both radial velocity and amplitude on the 5.4 minute period and no other. The data strongly suggest that the binary is emitting He I 4471 from the irradiated face of the cooler, less massive star, and He II 4686 from a ring around the more massive star. From their relative radial velocities, we measure a mass ratio q = 0.50 {+-} 0.13. We conclude that the observed 5.4 minute period almost certainly represents the orbital period of an interacting binary white dwarf. We thus confirm that HM Cnc is the shortest period binary star known: a unique test for stellar evolution theory, and one of the strongest known sources of gravitational waves for LISA.

Roelofs, Gijs H. A. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Rau, Arne [Astronomy Department, California Institute of Technology, Pasadena, CA 91125 (United States); Marsh, Tom R.; Steeghs, Danny [Department of Physics, University of Warwick, Coventry, CV4 7AL (United Kingdom); Groot, Paul J.; Nelemans, Gijs [Department of Astrophysics, Radboud University Nijmegen, P.O. Box 9010, 6500 GL, Nijmegen (Netherlands)], E-mail: groelofs@cfa.harvard.edu, E-mail: arau@mpe.mpg.de

2010-03-10T23:59:59.000Z

325

Determination of the superhump period of the dwarf nova V701 Tau during the 2005 December superoutburst  

E-Print Network [OSTI]

We report new measurements of the superhump period of the UGSU-type dwarf nova V701 Tau during the 2005 December superoutburst. Using unfiltered time series CCD observations on 3 nights, we determine a probable superhump period Psh = 0.0690, plus or minus 0.0002d, but note that our data also permit a possible shorter period of 0.0663, plus or minus 0.0002d. The longer period agrees with the value measured during the first recorded superoutburst in 1995.

Jeremy Shears; David Boyd

2006-08-03T23:59:59.000Z

326

To Tell the Truth: Management Forecasts in Periods of Accounting Fraud Stephen P. Baginski*  

E-Print Network [OSTI]

To Tell the Truth: Management Forecasts in Periods of Accounting Fraud Stephen P. Baginski of fraud firms' management earnings forecasts to the changes observed in a sample of control firms matched on industry, size, and fraud risk. We find that, although managers of control firms significantly increase

O'Toole, Alice J.

327

QUANTUM ENERGY EXPECTATION IN PERIODIC TIME-DEPENDENT HAMILTONIANS VIA GREEN  

E-Print Network [OSTI]

QUANTUM ENERGY EXPECTATION IN PERIODIC TIME-DEPENDENT HAMILTONIANS VIA GREEN FUNCTIONS C´ESAR R. DE. Introduction 1 2. Average Energy and Green Functions 4 3. Applications 10 3.1. Time-Independent Hamiltonians 10(t). For each positive and discrete observable A (which we call a probe energy), we derive a formula

328

EBONEEUROPEAN BIODIVERSITY OBSERVATION NETWORK  

E-Print Network [OSTI]

EBONEEUROPEAN BIODIVERSITY OBSERVATION NETWORK Geert De Blust, Guy Laurijssens, Hans Van Calster of biodiversity monitoring through close collaboration of users and data providers #12;#12;Design of a monitoring-effectiveness Optimization of biodiversity monitoring through close collaboration of users and data providers Geert De Blust1

329

OBSERVED DAMPING OF THE SLOW MAGNETOACOUSTIC MODE  

SciTech Connect (OSTI)

Spectroscopic and stereoscopic imaging observations of slow magnetoacoustic wave propagation within a coronal loop are investigated to determine the decay length scale of the slow magnetoacoustic mode in three dimensions and the density profile within the loop system. The slow wave is found to have an e-folding decay length scale of 20,000{sup +4000}{sub -3000} km with a uniform density profile along the loop base. These observations place quantitative constraints on the modeling of wave propagation within coronal loops. Theoretical forward modeling suggests that magnetic field line divergence is the dominant damping factor and thermal conduction is insufficient, given the observed parameters of the coronal loop temperature, density, and wave mode period.

Marsh, M. S.; Walsh, R. W. [Jeremiah Horrocks Institute for Astrophysics and Supercomputing, University of Central Lancashire, Preston PR1 2HE (United Kingdom); De Moortel, I., E-mail: mike.s.marsh@gmail.com, E-mail: mmarsh@uclan.ac.uk [School of Mathematics and Statistics, University of St Andrews, St Andrews KY16 9SS (United Kingdom)

2011-06-20T23:59:59.000Z

330

Performance Period Total Fee Paid FY2001  

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

01 01 $4,547,400 FY2002 $4,871,000 FY2003 $6,177,902 FY2004 $8,743,007 FY2005 $13,134,189 FY2006 $7,489,704 FY2007 $9,090,924 FY2008 $10,045,072 FY2009 $12,504,247 FY2010 $17,590,414 FY2011 $17,558,710 FY2012 $14,528,770 Cumulative Fee Paid $126,281,339 Cost Plus Award Fee DE-AC29-01AL66444 Washington TRU Solutions LLC Contractor: Contract Number: Contract Type: $8,743,007 Contract Period: $1,813,482,000 Fee Information Maximum Fee $131,691,744 Total Estimated Contract Cost: $4,547,400 $4,871,000 $6,177,902 October 2000 - September 2012 Minimum Fee $0 Fee Available EM Contractor Fee Site: Carlsbad Field Office - Carlsbad, NM Contract Name: Waste Isolation Pilot Plant Operations March 2013 $13,196,690 $9,262,042 $10,064,940 $14,828,770 $12,348,558 $12,204,247 $17,590,414 $17,856,774

331

Effects of periodic matter in kaon regeneration  

E-Print Network [OSTI]

We study the effects of periodic matter in kaon regeneration, motivated by the possibility of parametric resonance in neutrino oscillations. The large imaginary parts of the forward kaon-nucleon scattering amplitudes and the decay width difference $\\Delta\\Gamma$ prevent a sizable enhancement of the $K_L\\to K_S$ transition probability. However, some interesting effects can be produced using regenerators made of alternating layers of two different materials. Despite the fact that the regenerator has a fixed length one can obtain different values for the probability distribution of the $K_L$ decay into a final state. Using a two-arm regenerator set up it is possible to measure the imaginary parts of the $K^0(\\bar{K}^0)$-nucleon scattering amplitudes in the correlated decays of the $\\phi$-resonance. Combining the data of the single-arm regenerator experiments with direct and reverse orders of the matter layers in the regenerator one can independently measure the CP violating parameter $\\delta$.

Evgeny Akhmedov; Augusto Barroso; Petteri Keränen

2001-07-23T23:59:59.000Z

332

Superconvergence of period doubling cascade in trapezoid maps  

E-Print Network [OSTI]

In the symmetric and the asymmetric trapezoid maps, as a slope of the trapezoid is increased, the period doubling cascade occurs and the symbolic sequence of periodic points is the Metropolis-Stein-Stein sequence and the convergence of the onset point of the period 2^m solution to the accumulation point is exponentially fast. We reported these results previously. In this paper, we give the detailed description of the proof on the results. Further, we study the period doubling cascade starting from period p solution and show the superconvergence of the period doubling cascade.

T. Uezu

2000-01-12T23:59:59.000Z

333

Energy End-Use Intensities in Commercial Buildings 1992  

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

Overview > Tables Overview > Tables 1992 Energy End-Use Intensities Tables Energy Consumption by End Use, 1992 Figure on Energy Consumption By End Use, 1992 Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-871A through F of the 1992 Commercial Buildings Energy Consumption Survey. divider line To View and/or Print Reports (requires Adobe Acrobat Reader) - Download Adobe Acrobat Reader If you experience any difficulties, visit our Technical Frequently Asked Questions. divider line Tables - (file size 31,655 bytes), pages 6. - requires Adobe Acrobat Reader Consumption of All Major Fuels by End Uses, 1992 Energy End-Use Intensities for All Major Fuels, 1992 Consumption of Electricity by End Uses, 1992 Energy End-Use Intensities for Electricity, 1992

334

Inertial Fusion Driven by Intense Heavy-Ion Beams  

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

INERTIAL FUSION DRIVEN BY INTENSE HEAVY-ION BEAMS INERTIAL FUSION DRIVEN BY INTENSE HEAVY-ION BEAMS * W. M. Sharp # , A. Friedman, D. P. Grote, J. J. Barnard, R. H. Cohen, M. A. Dorf, S. M. Lund, L. J. Perkins, M. R. Terry, LLNL, Livermore, CA, USA B. G. Logan, F. M. Bieniosek, A. Faltens, E. Henestroza, J.-Y. Jung, J. W. Kwan, E. P. Lee, S. M. Lidia, P. A. Ni, L. L. Reginato, P. K. Roy, P. A. Seidl, J. H. Takakuwa, J.-L. Vay, W. L. Waldron, LBNL, Berkeley, CA, USA R. C. Davidson, E. P. Gilson, I. D. Kaganovich, H. Qin, E. Startsev, PPPL, Princeton, NJ, USA I. Haber, R. A. Kishek, University of Maryland, College Park, MD, USA A. E. Koniges, NERSC, Berkeley, CA, USA Abstract Intense heavy-ion beams have long been considered a promising driver option for inertial-fusion energy production. This paper briefly compares inertial

335

B. Appendix: Scaling of Cost with Energy and Intensity  

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

B. Appendix: Scaling of Cost with Energy and Intensity B. Appendix: Scaling of Cost with Energy and Intensity With the two ongoing studies, one for the physics program, [1] and one for the accelerator and facilities [2] on the "Neutrino Factory Based on a Muon Storage Ring", a number of interesting suggestions and ideas came up. Almost immediately the question of scaling cost with the storage ring energy and with intensity came up. Nevertheless, it was impossible to explore all those questions in great detail, either in the report or in the preliminary cost estimate that is presented in Appendix A. During the study it became more and more clear, that one of the unique features of a neutrino source, namely the possibility to balance the cost of the accelerator with the cost of the detector, would urge the accelerator people to find an answer to this

336

Intense Muon Beams for Experiments at Project X  

SciTech Connect (OSTI)

A coherent approach for providing muon beams to several experiments for the intensity-frontier program at Project X is described. Concepts developed for the front end of a muon collider/neutrino factory facility, such as phase rotation and ionization cooling, are applied, but with significant differences. High-intensity experiments typically require high-duty-factor beams pulsed at a time interval commensurate with the muon lifetime. It is challenging to provide large RF voltages at high duty factor, especially in the presence of intense radiation and strong magnetic fields, which may preclude the use of superconducting RF cavities. As an alternative, cavities made of materials such as ultra-pure Al and Be, which become very good –but not super– conductors at cryogenic temperatures, can be used.

C.M. Ankenbrandt, R.P. Johnson, C. Y. Yoshikawa, V.S. Kashikhin, D.V. Neuffer, J. Miller, R.A. Rimmer

2011-03-01T23:59:59.000Z

337

Selection of minimum earthquake intensity in calculating pipe failure probabilities  

SciTech Connect (OSTI)

In a piping reliability analysis, it is sometimes necessary to specify a minimum ground motion intensity, usually the peak acceleration, below which the ground motions are not considered as earthquakes and, hence, are neglected. The calculated probability of failure of a piping system is dependent on this selected minimum earthquake intensity chosen for the analysis. A study was conducted to determine the effects of the minimum earthquake intensity on the probability of pipe failure. The results indicated that the probability of failure of the piping system is not very sensitive to the variations of the selected minimum peak ground acceleration. However, it does have significant effects on various scenarios that make up the system failure.

Lo, T.Y.

1985-01-01T23:59:59.000Z

338

Energy End-Use Intensities in Commercial Buildings 1989 -- Executive  

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

9 Energy End-Use Intensities > Executive Summary 9 Energy End-Use Intensities > Executive Summary Executive Summary Energy End Uses Ranked by Energy Consumption, 1989 Energy End Uses Ranked by Energy Consumption, 1989 Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-871A through F of the 1989 Commercial Buildings Energy Consumption Survey. divider line The demand for energy in U.S. stores, offices, schools, hospitals, and other commercial buildings has been increasing. This report examines energy intensities in commercial buildings for nine end uses: space heating, cooling, ventilation, lighting, water heating, cooking, refrigeration, office equipment, and "other." The objective of this analysis was to increase understanding of how energy is used in commercial buildings and to identify targets for greater energy efficiency which could moderate future growth in demand.

339

Calculations of population transfer during intense laser pulses  

SciTech Connect (OSTI)

Recent experiments by several groups have examined the question of population transfer to resonantly excited states during intense short laser pulses, in particular the amount of population that remains ``trapped`` in excited states at the end of a laser pulse. In this chapter we present calculations of population transfer and resonant ionization in xenon at both 660 and 620 nm. At the longer wavelength, the seven photon channel closes at 2.5{times}10{sup 13} W/cm{sup 2}. Pulses with peak intensities higher than this result in ``Rydberg trapping``, the resonant transfer of population to a broad range of high-lying states. The amount of population transferred depends on both the peak intensity and pulse duration. At 620 mm there are numerous possible six photon resonances to states with p or f angular momentum. We have done a large number of calculations for 40 fs pulses at different peak intensities and have examined the population transferred to these low-lying resonant states as a function of the peak laser intensity. We do not have room to comment upon the resonantly enhanced ionized electron energy spectra that we also determine in the same calculations. Our calculations involve the direct numerical integration of the time-dependent Schroedinger equation for an atom interacting with a strong laser field. The time-dependent wave function of a given valence electron is calculated on a spatial grid using a one-electron pseudo potential. This single active electron approximation (SAE) has been shown to be a good approximation for the rare gases at the intensities and wavelengths that we will consider. The SAE potential we use has an explicit angular momentum dependence which allows us to reproduce all of the excited state energies for xenon quite well.

Schafer, K.J.; Kulander, K.C.

1993-08-01T23:59:59.000Z

340

Reduction in the intensity of solar X-ray emission in the 2- to 15-keV photon energy range and heating of the solar corona  

SciTech Connect (OSTI)

The time profiles of the energy spectra of low-intensity flares and the structure of the thermal background of the soft X-ray component of solar corona emission over the period of January-February, 2003, are investigated using the data of the RHESSI project. A reduction in the intensity of X-ray emission of the solar flares and the corona thermal background in the 2- to 15-keV photon energy range is revealed. The RHESSI data are compared with the data from the Interball-Geotail project. A new mechanism of solar corona heating is proposed on the basis of the results obtained.

Mirzoeva, I. K., E-mail: colombo2006@mail.ru [Russian Academy of Sciences, Space Research Institute (Russian Federation)

2013-04-15T23:59:59.000Z

Note: This page contains sample records for the topic "intensive observation period" 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

Stress intensity factors for small fatigue cracks in tubular joints  

SciTech Connect (OSTI)

Some simple fracture mechanics models are presented for estimating stress intensity factors for small surface fatigue cracks in welded tubular joints. Model predictions are compared with large-scale experimental results for the cases of in-plane and out-of-plane bending in multi-brace tubular nodes. It is demonstrated that reasonably accurate predictions of the stress intensity factor are possible using a modified flat plate solution if the effects of weld geometry, load shedding and crack shape are adequately accounted for.

Monahan, C.C. [Memorial Univ. of Newfoundland, St. Johns, Newfoundland (Canada). Centre for Cold Ocean Resources Engineering; Dover, W.D. [University College, London (United Kingdom)

1995-12-31T23:59:59.000Z

342

High intensity proton operation at the Brookhaven AGS accelerator complex  

SciTech Connect (OSTI)

With the completion of the AGS rf upgrade, and the implementation of a transition {open_quotes}jump{close_quotes}, all of accelerator systems were in place in 1994 to allow acceleration of the proton intensity available from the AGS Booster injector to AGS extraction energy and delivery to the high energy users. Beam commissioning results with these new systems are presented. Progress in identifying and overcoming other obstacles to higher intensity are given. These include a careful exploration of the stopband strengths present on the AGS injection magnetic porch, and implementation of the AGS single bunch transverse dampers throughout the acceleration cycle.

Ahrens, L.A.; Blaskiewicz, M.; Bleser, E.; Brennan, J.M.; Gardner, C.; Glenn, J.W.; Onillon, E.; Reece, R.K.; Roser, T.; Soukas, A. [and others

1994-08-01T23:59:59.000Z

343

Evaluation of expanded uncertainties in luminous intensity and illuminance calibrations  

SciTech Connect (OSTI)

Detector-based calibrating methods and expressions for calculation of photometric uncertainties related to uncertainties in the calibrations of luminous intensity of a light source, illuminance responsivity of a photometer head, and calibration factors of an illuminance meter are discussed. These methods permit luminous intensity calibrations of incandescent light sources, luminous responsivity calibrations of photometer heads, and calibration factors of illuminance meters to be carried out with relative expanded uncertainties (with a level of confidence of 95.45%) of 0.4%, 0.4%, and 0.6%, respectively.

Sametoglu, Ferhat

2008-11-01T23:59:59.000Z

344

Data-intensive computing laying foundation for biological breakthroughs  

SciTech Connect (OSTI)

Finding a different way is the goal of the Data-Intensive Computing for Complex Biological Systems (Biopilot) project—a joint research effort between the Pacific Northwest National Laboratory (PNNL) and Oak Ridge National Laboratory funded by the U.S. Department of Energy’s Office of Advanced Scientific Computing Research. The two national laboratories, both of whom are world leaders in computing and computational sciences, are teaming to support areas of biological research in urgent need of data-intensive computing capabilities.

Hachigian, David J.

2007-06-18T23:59:59.000Z

345

Use of computers in hospitals: An analysis of intensive and nonintensive users  

Science Journals Connector (OSTI)

Differences between “Intensive” and non-intensive users of computers among hospitals are analyzed using step wise discriminant analysis. Hospitals are classified into “Intensive” and “Nonintensive” users of co...

Satya N. Prattipati

1996-04-01T23:59:59.000Z

346

Frontal brain electrical activity (EEG) distinguishes valence and intensity of musical emotions  

E-Print Network [OSTI]

Frontal brain electrical activity (EEG) distinguishes valence and intensity of musical emotions (i.e., positive vs. negative) and intensity (i.e., intense vs. calm) in a group of under- graduates

Trainor, Laurel J.

347

Light Intensity-Dependent Modulation of Chlorophyll b Biosynthesis and Photosynthesis by Overexpression of  

E-Print Network [OSTI]

limiting and saturating light intensities. Although the quantum yield of carbon dioxide fixation remained carbon dioxide assimilation, starch content, and dry matter accumulation. Light intensity is a majorLight Intensity-Dependent Modulation of Chlorophyll b Biosynthesis and Photosynthesis

Govindjee

348

Target Allocation Methodology for China's Provinces: Energy Intensity in the 12th FIve-Year Plan  

E-Print Network [OSTI]

projections of energy and intensity for the 12 th FYP werelevel projections of energy and intensity for the 12 th FYPth APPENDIX Table A-2 Energy Intensity Target Allocation

Ohshita, Stephanie

2011-01-01T23:59:59.000Z

349

Energy use and energy intensity of the U.S. chemical industry  

E-Print Network [OSTI]

23 5.3 Energy Use and Energy Intensity of Chlorine44314 Energy Use and Energy Intensity of the U.S. ChemicalEnergy Use and Energy Intensity of the U.S. Chemical

Worrell, Ernst; Phylipsen, Dian; Einstein, Dan; Martin, Nathan

2000-01-01T23:59:59.000Z

350

A Comparison of Iron and Steel Production Energy Intensity in China and the U.S  

E-Print Network [OSTI]

Production Energy Use and Energy Intensity in China and theGJ/t crude steel Primary Energy Intensity* kgce/t GJ/t crudeChina U.S. Final Energy Intensity No. 5b Scenarios Country

Price, Lynn

2014-01-01T23:59:59.000Z

351

Relative phase interactions of two copropagating laser beams in underdense plasmas at different intensities and spot sizes  

SciTech Connect (OSTI)

The mutual interactions of two copropagating laser beams at a relative phase are studied using a two-dimensional fluid code. The interactions are investigated in underdense plasma at selected beam configurations and beam parameters for two separate nonlinearities, i.e., the ponderomotive and the relativistic nonlinearity. The selected beam configurations are introduced by different initial transverse spot size perturbations (finite and infinite) and different initial transversal intensity distributions (nonuniform and uniform) over those spot sizes and the selected beam parameters are given by different initial beam intensities relevant to each nonlinearity. In the ponderomotive nonlinearity, simulation results show that no mutual interactions are demonstrated between the copropagating beams regardless of the initial beam configurations and parameters. In nonlinear relativistic simulations, the mutual interactions between the beams are clearly observed, a mutual repulsion is formed in the presence of initial intensities that are nonuniformly distributed over finite spot sizes, and an effective strongly modulated mutual attraction takes places in the presence of initial intensities that are uniformly distributed over infinite spot sizes. Moreover, it is found in these simulations that increasing the initial beam intensities improves the attraction properties between the copropagationg beams.

Mahdy, A. I. [Department of Plasma and Nuclear Fusion, Nuclear Research Centre, Atomic Energy Authority, 13759 Cairo (Egypt)

2010-06-15T23:59:59.000Z

352

EIS-0403: Public Comment Period Extension | Department of Energy  

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

403: Public Comment Period Extension 403: Public Comment Period Extension EIS-0403: Public Comment Period Extension Solar Energy Development in Six Southwestern States The Bureau of Land Management (BLM) announced a two-week extension of the public comment period for the Draft Solar Programmatic Environmental Impact Statement (Draft Solar PEIS), a joint effort with the Department of Energy. The agencies had previously provided for a 120-day public comment period on the Draft Solar PEIS. Because of numerous requests, the agencies extended the comment period by an additional two weeks beyond April 16, 2011. The comment period ran (with extension) until May 2, 2011. EIS-0403-DEIS_Second_Comment_Extension-2011.pdf More Documents & Publications EIS-0403: Notice to Extend Public Comment Period

353

An Investigation into Solar Wind Plasma Periodicities Karolen I. Paularena  

E-Print Network [OSTI]

An Investigation into Solar Wind Plasma Periodicities Karolen I. Paularena Center for Space Research, Massachusetts Institute of Technology, Cambridge, Massachusetts Received ; accepted To be submitted to Journal of Geophysical Research, 1996. Short title: SOLAR WIND PLASMA PERIODICITIES #12

Richardson, John

354

Observations on the growth of Tetrahymena pyriformis strain W in a medium-intensity, static magnetic field  

E-Print Network [OSTI]

struggled to describe, understand, and apply the seemingly "magical" powers of the magnet. In the fifth century A. D. , the Greek physician, Aetius, attributed to it the medicinal power to cure gout and epilepsy (Mottelay, p. 26, 1922), while according... struggled to describe, understand, and apply the seemingly "magical" powers of the magnet. In the fifth century A. D. , the Greek physician, Aetius, attributed to it the medicinal power to cure gout and epilepsy (Mottelay, p. 26, 1922), while according...

Laird, Robert Joel

2012-06-07T23:59:59.000Z

355

Comment on “Experimental Observation of Electrons Accelerated in Vacuum to Relativistic Energies by a High-Intensity Laser”  

Science Journals Connector (OSTI)

A Comment on the Letter by G. Malka, E. Lefebvre, and J. L. Miquel, Phys. Rev. Lett. 78, 3314 (1997). The authors of the Letter offer a Reply.

Kirk T. McDonald

1998-02-09T23:59:59.000Z

356

Comment on “Experimental Observation of Electrons Accelerated in Vacuum to Relativistic Energies by a High-Intensity Laser”  

Science Journals Connector (OSTI)

A Comment on the Letter by G. Malka, E. Lefebure, and J. L. Miquel, Phys. Rev. Lett. 78, 3314 (1997). The authors of the Letter offer a Reply.

P. Mora and B. Quesnel

1998-02-09T23:59:59.000Z

357

Recommendation 186: Option Periods in Prime Contract Language  

Broader source: Energy.gov [DOE]

The inclusion of option periods in the language of all future DOE Request for Proposals for prime contracts when appropriate.

358

A Comparison of Iron and Steel Production Energy Intensity in China and the U.S  

E-Print Network [OSTI]

of Iron and Steel Production Energy Use and Energy Intensityof Iron and Steel Production Energy Intensity in China andof Iron and Steel Production Energy Intensity in China and

Price, Lynn

2014-01-01T23:59:59.000Z

359

2014-05-05 Issuance: Test Procedures for High-Intensity Discharge...  

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

Test Procedures for High-Intensity Discharge Lamps; Supplemental Notice of Proposed Rulemaking 2014-05-05 Issuance: Test Procedures for High-Intensity Discharge Lamps; Supplemental...

360

E-Print Network 3.0 - airglow intensities measured Sample Search...  

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

where the airglow intensity is relatively low. Mendillo et al. (1997) reported a bubble structure... . The bubble structures (tree-like depletions of airglow intensity)...

Note: This page contains sample records for the topic "intensive observation period" 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

Relationship between heat transfer intensity and absolute vorticity flux intensity in flat tube bank fin channels with Vortex Generators  

Science Journals Connector (OSTI)

The heat transfer enhancement can be achieved through the secondary flow. It is found that absolute vorticity flux along the main flow can describe the secondary flow intensity and correspond to the heat transfer enhancement averaged in span wise direction. Investigations to verify this phenomenon are reported. The results show that there has a similar distribution for absolute vorticity flux in the main flow direction compared with that for span averaged Nusselt number. The conformance of Nusselt number and absolute vorticity flux shows that absolute vorticity flux can reflect the intensity of heat transfer produced by the secondary flow.

Ke-Wei Song; Liang-Bi Wang

2008-01-01T23:59:59.000Z

362

Getting More For Your Money: Identifying and Confirming Long-Period Planets with Kepler  

E-Print Network [OSTI]

Kepler will monitor enough stars that it is likely to detect single transits of planets with periods longer than the mission lifetime. We show that by combining the Kepler photometry of such transits with precise radial velocity (RV) observations taken over ~3 months, and assuming circular orbits, it is possible to estimate the periods of these transiting planets to better than 20% (for planets with radii greater than that of Neptune) and the masses to within a factor of 2 (for planet masses m_p > M_Jup). We also explore the effects of eccentricity on our estimates of these uncertainties.

Jennifer C. Yee; B. Scott Gaudi

2008-07-16T23:59:59.000Z

363

Minisuperspaces: Observables and Quantization  

E-Print Network [OSTI]

A canonical transformation is performed on the phase space of a number of homogeneous cosmologies to simplify the form of the scalar (or, Hamiltonian) constraint. Using the new canonical coordinates, it is then easy to obtain explicit expressions of Dirac observables, i.e.\\ phase space functions which commute weakly with the constraint. This, in turn, enables us to carry out a general quantization program to completion. We are also able to address the issue of time through ``deparametrization'' and discuss physical questions such as the fate of initial singularities in the quantum theory. We find that they persist in the quantum theory {\\it inspite of the fact that the evolution is implemented by a 1-parameter family of unitary transformations}. Finally, certain of these models admit conditional symmetries which are explicit already prior to the canonical transformation. These can be used to pass to quantum theory following an independent avenue. The two quantum theories --based, respectively, on Dirac observables in the new canonical variables and conditional symmetries in the original ADM variables-- are compared and shown to be equivalent.

Abhay Ashtekar; Ranjeet S. Tate; Claes Uggla

1993-02-21T23:59:59.000Z

364

Optimization of Power-Intensive Energy Systems with Carbon Capture  

Science Journals Connector (OSTI)

Optimization of Power-Intensive Energy Systems with Carbon Capture ... Three concepts for capturing CO2 from natural gas-fired combined gas/steam turbine power plants are evaluated and compared in this paper: (A) sepn. of CO2 from exhaust gas coming from a std. ...

Xuesong Zheng; Jin-Kuk Kim

2011-09-07T23:59:59.000Z

365

Electron-ion collisions in intensely illuminated plasmas G. Shvetsa)  

E-Print Network [OSTI]

Electron-ion collisions in intensely illuminated plasmas G. Shvetsa) and N. J. Fisch Princeton, the collisions of electrons with ions can be made more frequent or less frequent, depending on the polarization to the size of the electron oscillation in the hf field. The stimulated bremsstrahlung emission is calculated

366

China targets 20% reduction in energy intensity by 2010  

Science Journals Connector (OSTI)

Though China has made great achievement in energy conservation in the last two decades, its energy consumption is increasing rapidly. In March 2006, China's government set a target for reducing its energy intensity by 20% by 2010 compared to the 2005 value. In this paper, we analyse China's current energy efficiency situations, and put forward some policy implications on energy saving.

Hua Liao; Ying Fan; Yi-Ming Wei

2009-01-01T23:59:59.000Z

367

PNNL Data-Intensive Computing for a Smarter Energy Grid  

SciTech Connect (OSTI)

The Middleware for Data-Intensive Computing (MeDICi) Integration Framework, an integrated platform to solve data analysis and processing needs, supports PNNL research on the U.S. electric power grid. MeDICi is enabling development of visualizations of grid operations and vulnerabilities, with goal of near real-time analysis to aid operators in preventing and mitigating grid failures.

Carol Imhoff; Zhenyu (Henry) Huang [Henry; Daniel Chavarria

2009-11-01T23:59:59.000Z

368

PNNL Data-Intensive Computing for a Smarter Energy Grid  

ScienceCinema (OSTI)

The Middleware for Data-Intensive Computing (MeDICi) Integration Framework, an integrated platform to solve data analysis and processing needs, supports PNNL research on the U.S. electric power grid. MeDICi is enabling development of visualizations of grid operations and vulnerabilities, with goal of near real-time analysis to aid operators in preventing and mitigating grid failures.

Carol Imhoff; Zhenyu (Henry) Huang; Daniel Chavarria

2012-12-31T23:59:59.000Z

369

Continuous Snow Depth, Intensive Site 1, Barrow, Alaska  

SciTech Connect (OSTI)

Continuous Snow depth data are being collected at several points within four intensive study areas in Barrow, Alaska. These data are being collected to better understand the energy dynamics above the active layer and permafrost. They complement in-situ snow and soil measurements at this location. The data could also be used as supporting measurements for other research and modeling activities.

Cable, William; Romanovsky, Vladimir; Hinzman, Larry; Busey, Bob

2014-11-06T23:59:59.000Z

370

Gamma Ray Bursts Sudden, intense flashes of gamma rays  

E-Print Network [OSTI]

Gamma Ray Bursts #12;The Case Sudden, intense flashes of gamma rays come from nowhere and disappear with out a trace. Incredibly powerful: A single gamma ray burst is hundreds of times brighter a supernova #12;Who Vela (1960's) Looking for arms testing, found gamma ray bursts Compton Gamma Ray Observatory

Washington at Seattle, University of - Department of Physics, Electroweak Interaction Research Group

371

Research Strategies for Increasing Productivity of Intensively Managed  

E-Print Network [OSTI]

fiber production from a smaller land base and provides market incentives to keep these lands under, plantation forestry, intensive silviculture, biomass T raditional and emerging markets for wood products and bioenergy are likely to increase pressure on forests and create incentives for enhancing their pro

372

PNNLs Data Intensive Computing research battles Homeland Security threats  

ScienceCinema (OSTI)

The Pacific Northwest National Laboratorys (PNNL's) approach to data intensive computing (DIC) is focused on three key research areas: hybrid hardware architecture, software architectures, and analytic algorithms. Advancements in these areas will help to address, and solve, DIC issues associated with capturing, managing, analyzing and understanding, in near real time, data at volumes and rates that push the frontiers of current technologies.

David Thurman; Joe Kielman; Katherine Wolf; David Atkinson

2012-12-31T23:59:59.000Z

373

Drift tube suspension for high intensity linear accelerators  

DOE Patents [OSTI]

The disclosure relates to a drift tube suspension for high intensity linear accelerators. The system comprises a series of box-sections girders independently adjustably mounted on a linear accelerator. A plurality of drift tube holding stems are individually adjustably mounted on each girder.

Liska, Donald J. (Los Alamos, NM); Schamaun, Roger G. (Los Alamos, NM); Clark, Donald C. (Los Alamos, NM); Potter, R. Christopher (Los Alamos, NM); Frank, Joseph A. (Los Alamos, NM)

1982-01-01T23:59:59.000Z

374

ICGrid: Enabling Intensive Care Medical Research on the EGEE Grid  

E-Print Network [OSTI]

, by utilizing the EGEE infrastructure. ICGrid is based on a hybrid architecture that combines i) a heterogeneous and data. In recent years, Grids have emerged as wide-scale distributed infrastructures that supportICGrid: Enabling Intensive Care Medical Research on the EGEE Grid Harald Gjermundrød a , Marios D

Pallis, George

375

Global warming and hurricane intensity and frequency: The debate continues  

E-Print Network [OSTI]

Global warming and hurricane intensity and frequency: The debate continues Megan Mc of these changes. Some scientists believe that global warming and increased sea surface temperatures are to blame, global warming and increased sea surface temperatures do appear to have influenced hurricane frequency

Kareem, Ahsan

376

PNNL pushing scientific discovery through data intensive computing breakthroughs  

ScienceCinema (OSTI)

The Pacific Northwest National Laboratorys approach to data intensive computing (DIC) is focused on three key research areas: hybrid hardware architectures, software architectures, and analytic algorithms. Advancements in these areas will help to address, and solve, DIC issues associated with capturing, managing, analyzing and understanding, in near real time, data at volumes and rates that push the frontiers of current technologies.

Deborah Gracio; David Koppenaal; Ruby Leung

2012-12-31T23:59:59.000Z

377

Optimized Pre-Copy Live Migration for Memory Intensive Applications  

E-Print Network [OSTI]

Optimized Pre-Copy Live Migration for Memory Intensive Applications Khaled Z. Ibrahim, Steven Hofmeyr, Costin Iancu, Eric Roman Lawrence Berkeley National Laboratory Email: {kzibrahim, shofmeyr and fault tolerance. KVM and Xen use iterative pre-copy approaches which work well in practice

378

PNNLs Data Intensive Computing research battles Homeland Security threats  

SciTech Connect (OSTI)

The Pacific Northwest National Laboratorys (PNNL's) approach to data intensive computing (DIC) is focused on three key research areas: hybrid hardware architecture, software architectures, and analytic algorithms. Advancements in these areas will help to address, and solve, DIC issues associated with capturing, managing, analyzing and understanding, in near real time, data at volumes and rates that push the frontiers of current technologies.

David Thurman; Joe Kielman; Katherine Wolf; David Atkinson

2009-12-01T23:59:59.000Z

379

Solar panels are cost intensive, have limitations with respect to  

E-Print Network [OSTI]

advantage of being able to convert sunlight into clean energy. After the glass is coated, we install clean electricity. Advantages · Building-integratable. · Contributes to EU targets towards energySolar panels are cost intensive, have limitations with respect to where they can be integrated

Langendoen, Koen

380

Drift tube suspension for high intensity linear accelerators  

DOE Patents [OSTI]

The disclosure relates to a drift tube suspension for high intensity linear accelerators. The system comprises a series of box-sections girders independently adjustably mounted on a linear accelerator. A plurality of drift tube holding stems are individually adjustably mounted on each girder.

Liska, D.J.; Schamaun, R.G.; Clark, D.C.; Potter, R.C.; Frank, J.A.

1980-03-11T23:59:59.000Z

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


381

High–intensity lasers: interactions with atoms, molecules and clusters  

Science Journals Connector (OSTI)

...tra from around 2500-atom xenon clusters irradiated by 2 1016...charge states up to 12+ in xenon and 8+ in krypton at an intensity...process converts the coherent oscillation energy of the electron cloud...result of a resonantly driven oscillation of the entire cluster elec...

1998-01-01T23:59:59.000Z

382

High-power, high-intensity laser propagation and interactions  

SciTech Connect (OSTI)

This paper presents overviews of a number of processes and applications associated with high-power, high-intensity lasers, and their interactions. These processes and applications include: free electron lasers, backward Raman amplification, atmospheric propagation of laser pulses, laser driven acceleration, atmospheric lasing, and remote detection of radioactivity. The interrelated physical mechanisms in the various processes are discussed.

Sprangle, Phillip [Plasma Physics Division, Naval Research Laboratory, Washington, DC 20375 (United States); Electrical and Computer Engineering and Physics, University of Maryland, College Park, Maryland 20740 (United States); Hafizi, Bahman [Plasma Physics Division, Naval Research Laboratory, Washington, DC 20375 (United States)

2014-05-15T23:59:59.000Z

383

Temperatures Indicated by Intensity Distributions in Band Spectra  

Science Journals Connector (OSTI)

It is generally supposed that the intensity of any particular line in a band spectrum may be calculated from the Maxwell-Boltzmann law, assuming the gas to be in temperature equilibrium. From the results of this experimental work, it appears that under some conditions of excitation other factors than the temperature of the gas govern the intensity distribution. Measurements on the negative bands of N2+ excited in low voltage arcs in the pure gas show that at 1100°K and 2800°K the distribution of intensities among the rotational lines is exactly the same, whilst the admixture of helium with nitrogen alters the distribution completely and gives a much lower indicated temperature. Similar results are found with the first negative bands of CO+. The differences are accounted for by the conversion of translational energy of the electrons into rotational energy of the molecules when the bands are excited by electron impacts in the pure gas. When the bands are excited by impacts of the second kind in gas mixtures, no change in rotational energy occurs and thus the indicated temperature is much lower. The distribution of intensity among the vibrational states of the molecules has been examined for the complete system of negative bands of N2+. While almost all of the energy is concentrated in the low vibration states when the bands are excited by electron impacts, the energy is spread out towards the higher vibration states when the excitation is by collisions of the second kind with metastable helium atoms.

O. S. Duffendack; R. W. Revans; A. S. Roy

1934-06-01T23:59:59.000Z

384

Title of Document: LONGITUDINAL CONTROL OF INTENSE CHARGED PARTICLE BEAMS  

E-Print Network [OSTI]

ABSTRACT Title of Document: LONGITUDINAL CONTROL OF INTENSE CHARGED PARTICLE BEAMS Brian Louis, accelerator facilities are demanding beams with higher quality. Applications such as Free Electron Lasers energy spread throughout the accelerator. Fluctuations in beam energy or density at the low-energy side

Anlage, Steven

385

Some Intensive and Extensive Quantities in High-Energy Collisions  

E-Print Network [OSTI]

We review the evolution of some statistical and thermodynamical quantities measured in difference sizes of high-energy collisions at different energies. We differentiate between intensive and extensive quantities and discuss the importance of their distinguishability in characterizing possible critical phenomena of nuclear collisions at various energies with different initial conditions.

A. Tawfik

2013-10-02T23:59:59.000Z

386

Energy Intensity of Federal Buildings Slashed 25% in Past Decade  

Broader source: Energy.gov [DOE]

The U.S. General Services Administration (GSA), which builds and manages federal buildings, recently announced that it cut federal energy spending by $65.5 million in fiscal year (FY) 2012 by reducing the energy use intensity levels in its buildings by nearly 25% since FY 2003.

387

Thesis Oral Energy-efficient Data-intensive  

E-Print Network [OSTI]

Thesis Oral Energy-efficient Data-intensive Computing with a Fast Array of Wimpy Nodes Vijay has raised datacenter energy demand and created an increasingly large financial burden and scaling challenge: Peak energy requirements today are a significant cost of provisioning

388

Continuous Snow Depth, Intensive Site 1, Barrow, Alaska  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

Continuous Snow depth data are being collected at several points within four intensive study areas in Barrow, Alaska. These data are being collected to better understand the energy dynamics above the active layer and permafrost. They complement in-situ snow and soil measurements at this location. The data could also be used as supporting measurements for other research and modeling activities.

Cable, William; Romanovsky, Vladimir; Hinzman, Larry; Busey, Bob

389

Posters Ground-Based Radiometric Observations  

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

7 7 Posters Ground-Based Radiometric Observations of Atmospheric Water for Climate Research J. B. Snider, D. A. Hazen, A. J. Francavilla, W. B. Madsen, and M. D. Jacobson National Oceanic and Atmospheric Administration Environmental Technology Laboratory Boulder, Colorado Introduction Surface-based microwave and infrared radiometers have been employed by the National Oceanic and Atmospheric Administration's Environmental Technology Laboratory (NOAA/ETL) in climate research since 1987. The ability of these systems to operate continuously and unattended for extended periods of time has provided significant new information on atmospheric water vapor and cloud liquid. These data are being employed to improve our understanding of cloud-radiation feedback mechanisms, an understanding

390

Evidence for ultra-fast heating in intense-laser irradiated reduced-mass targets  

SciTech Connect (OSTI)

We report on an experiment irradiating individual argon droplets of 20 {mu}m diameter with laser pulses of several Joule energy at intensities of 10{sup 19} W/cm{sup 2}. K-shell emission spectroscopy was employed to determine the hot electron energy fraction and the time-integrated charge-state distribution. Spectral fitting indicates that bulk temperatures up to 160 eV are reached. Modelling of the hot-electron relaxation and generation of K-shell emission with collisional hot-electron stopping only is incompatible with the experimental results, and the data suggest an additional ultra-fast (sub-ps) heating contribution. For example, including resistive heating in the modelling yields a much better agreement with the observed final bulk temperature and qualitatively reproduces the observed charge state distribution.

Neumayer, P.; Gumberidze, A.; Hochhaus, D. C. [ExtreMe Matter Institute EMMI and Research Division, GSI Helmholtzzentrum fuer Schwerionenforschung, 64291 Darmstadt (Germany); Frankfurt Institute for Advanced Studies FIAS, 60438 Frankfurt am Main (Germany); Aurand, B.; Stoehlker, T. [Helmholtzzentrum fuer Schwerionenforschung GSI, 64291 Darmstadt (Germany); Helmholtz Institute Jena, 07743 Jena (Germany); Costa Fraga, R. A.; Kalinin, A. [Institut fuer Kernphysik, J. W. Goethe University Frankfurt, 60438 Frankfurt am Main (Germany); Ecker, B. [Johannes Gutenberg University Mainz, 55099 Mainz (Germany); Helmholtz Institute Jena, 07743 Jena (Germany); Grisenti, R. E. [Institut fuer Kernphysik, J. W. Goethe University Frankfurt, 60438 Frankfurt am Main (Germany); Helmholtzzentrum fuer Schwerionenforschung GSI, 64291 Darmstadt (Germany); Kaluza, M. C. [Helmholtz Institute Jena, 07743 Jena (Germany); IOQ Institute of Optics and Quantum Electronics, University of Jena (Germany); Kuehl, T. [Johannes Gutenberg University Mainz, 55099 Mainz (Germany); Helmholtzzentrum fuer Schwerionenforschung GSI, 64291 Darmstadt (Germany); Helmholtz Institute Jena, 07743 Jena (Germany); Polz, J. [IOQ Institute of Optics and Quantum Electronics, University of Jena (Germany); Reuschl, R. [ExtreMe Matter Institute EMMI and Research Division, GSI Helmholtzzentrum fuer Schwerionenforschung, 64291 Darmstadt (Germany); Winters, D.; Winters, N.; Yin, Z. [Helmholtzzentrum fuer Schwerionenforschung GSI, 64291 Darmstadt (Germany)

2012-12-15T23:59:59.000Z

391

Neutron-scattering study of the magnon energies and intensities in iron  

Science Journals Connector (OSTI)

The magnetic inelastic neutron scattering at low temperatures has been measured from a large single crystal of Fe54(12 at.% Si) up to energy transfers of 100 meV using the constant-Q spectrometer at the Los Alamos pulsed neutron source. The spin-wave energies and intensities were obtained from the data by using a multichannel maximum-entropy technique, and we show that much more detailed information can be obtained from the maximum-entropy analysis. The observed spin-wave dispersion relations obtained in the present experiment are in excellent agreement with earlier data, and we observe a sharp falloff of the (001) magnon intensity at approximately 80 meV, which is in accord with previous experimental measurements and multiband theoretical calculations of the dynamic susceptibility of iron. We also compare the data rate obtained with the constant-Q spectrometer to a triple-axis instrument and find that the spectrometer is competitive for this type of measurement.

M. Yethiraj; R. A. Robinson; D. S. Sivia; J. W. Lynn; H. A. Mook

1991-02-01T23:59:59.000Z

392

Observations of Edge Turbulence  

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

Edge Turbulence Edge Turbulence near the X-point of Alcator C-Mod APS-2007 (1) J.L. Terry, S.J. Zweben*, B. LaBombard, I. Cziegler, O. Grulke + , D.P. Stotler* MIT - Plasma Science and Fusion Center *Princeton Plasma Physics Laboratory + MPI for Plasma Physics, EURATOM Assoc., Greifswald, Germany American Physical Society - Div. of Plasma Physics Orlando, FL Nov. 12 - Nov. 16, 2007 APS-2007 (2) Background and Motivation for "Xpt-region" View Strong edge turbulence has been observed in nearly all magnetic confinement devices. Desire predictive capability Most previous measurements made near outboard midplane where the turbulence has the following main features: - generation is ballooning-like (absent at inboard midplane, etc.) - filaments/blobs moves radially outward with some poloidal motion

393

Lithospheric Thickness Modeled from Long Period Surface Wave Dispersion  

SciTech Connect (OSTI)

The behavior of surface waves at long periods is indicative of subcrustal velocity structure. Using recently published dispersion models, we invert surface wave group velocities for lithospheric structure, including lithospheric thickness, over much of the Eastern Hemisphere, encompassing Eurasia, Africa, and the Indian Ocean. Thicker lithosphere under Precambrian shields and platforms are clearly observed, not only under the large cratons (West Africa, Congo, Baltic, Russia, Siberia, India), but also under smaller blocks like the Tarim Basin and Yangtze craton. In contrast, it is found that remobilized Precambrian structures like the Saharan Shield and Sino-Korean Paraplatform do not have well-established lithospheric keels. The thinnest lithospheric thickness is found under oceanic and continental rifts, as well as along convergence zones. We compare our results to thermal models of continental lithosphere, lithospheric cooling models of oceanic lithosphere, lithosphere-asthenosphere boundary (LAB) estimates from S-wave receiver functions, and velocity variations of global tomography models. In addition to comparing results for the broad region, we examine in detail the regions of Central Africa, Siberia, and Tibet. While there are clear differences in the various estimates, overall the results are generally consistent. Inconsistencies between the estimates may be due to a variety of reasons including lateral and depth resolution differences and the comparison of what may be different lithospheric features.

Pasyanos, M E

2008-05-15T23:59:59.000Z

394

Periodically-driven quantum matter: the case of resonant modulations  

E-Print Network [OSTI]

Quantum systems can show qualitatively new forms of behavior when they are driven by fast time-periodic modulations. In the limit of large driving frequency, the long-time dynamics of such systems can often be described by a time-independent effective Hamiltonian, which is generally identified through a perturbative treatment. Here, we present a general formalism that describes time-modulated physical systems, in which the driving frequency is large, but resonant with respect to energy spacings inherent to the system at rest. Such a situation is currently exploited in optical-lattice setups, where superlattice (or Wannier-Stark-ladder) potentials are resonantly modulated so as to control the tunneling matrix elements between lattice sites, offering a powerful method to generate artificial fluxes for cold-atom systems. The formalism developed in this work identifies the basic ingredients needed to generate interesting flux patterns and band structures using resonant modulations. We also discuss the micro-motion underlying the dynamics, and illustrate its characteristics based on diverse dynamic-lattice configurations. It is shown that the impact of the micro-motion on physical observables strongly depends on the implemented scheme, suggesting that a theoretical description in terms of the effective Hamiltonian alone is generally not sufficient to capture the full time-evolution of the system.

N. Goldman; J. Dalibard; M. Aidelsburger; N. R. Cooper

2014-10-30T23:59:59.000Z

395

Hydrographic observations off Savannah and Brunswick, Georgia: March, May and September 1977 and January 1978. Technical report 80-1  

SciTech Connect (OSTI)

Research progress is reported in studies of the oceanography of the South Atlantic Bight during the spring transition period. Volume 3 contains technical reports of hydrographic observations. (ACR)

Singer, J J; Atkinson, L P; Chandler, W S; Bishop, S S

1980-01-01T23:59:59.000Z

396

National Level Co-Control Study of the Targets for Energy Intensity and Sulfur Dioxide in China  

E-Print Network [OSTI]

world-best-practice-energy- intensity-values-selected-World Best Practice Energy Intensity Values for Selectedof the Targets for Energy Intensity and Sulfur Dioxide in

Zhou, Nan

2013-01-01T23:59:59.000Z

397

Observation of ionization fronts in low density foam targets  

SciTech Connect (OSTI)

Ionization fronts have been observed in low density chlorinated foam targets and low density foams confined in gold tubes using time resolved {ital K}-shell absorption spectroscopy. The front was driven by an intense pulse of soft x-rays produced by high power laser irradiation. The density and temperature profiles inferred from the radiographs provided detailed measurement of the conditions. The experimental data were compared to radiation hydrodynamics simulations and reasonable agreement was obtained. {copyright} {ital 1999 American Institute of Physics.}

Hoarty, D. [Imperial College of Science, Technology and Medicine, London (United Kingdom)] [Imperial College of Science, Technology and Medicine, London (United Kingdom); [Radiation Physics Department, AWE Aldermaston, Reading, Berkshire (United Kingdom); Willi, O.; Barringer, L.; Vickers, C. [Imperial College of Science, Technology and Medicine, London (United Kingdom)] [Imperial College of Science, Technology and Medicine, London (United Kingdom); Watt, R. [P24, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)] [P24, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States); Nazarov, W. [Chemistry Department, University of Dundee (United Kingdom)] [Chemistry Department, University of Dundee (United Kingdom)

1999-05-01T23:59:59.000Z

398

Power line harmonic radiation observed by satellite: Properties and propagation through the ionosphere  

E-Print Network [OSTI]

Power line harmonic radiation observed by satellite: Properties and propagation through of power line harmonic radiation events observed by the low-altitude DEMETER spacecraft. Altogether, 88 with the largest intensities often occur off exact multiples of base power system frequency. This can be explained

Santolik, Ondrej

399

Complex modes and new amplification regimes in periodic multi transmission lines interacting with an electron beam  

E-Print Network [OSTI]

We show the existence of a new regime of operation for travelling wave tubes (TWTs) composed of slow-wave periodic structures that support two or more electromagnetic modes, with at least two synchronized with an electron beam. The interaction between the slow-wave structure and an electron beam is quantified using a multi transmission line approach (MTL) and transfer matrix analysis leading to the identification of modes with complex Bloch wavenumber. In particular, we report a new operation condition for TWTs based on an electron beam synchronous to two modes exhibiting a degeneracy condition near a band edge in a MTL slow-wave periodic structure. We show a phenomenological change in the band structure of periodic TWT where we observe at least two growing modal cooperating solutions as opposed to a uniform MTL interacting with an electron beam where there is strictly only one growing mode solution.

Othman, Mohamed; Capolino, Filippo

2014-01-01T23:59:59.000Z

400

Multi-year Satellite and Surface Observations of AOD in support of Two-Column Aerosol Project (TCAP) Field Campaign  

SciTech Connect (OSTI)

We use combined multi-year measurements from the surface and space for assessing the spatial and temporal distribution of aerosol properties within a large (~400x400 km) region centered on Cape Cod, Massachusetts, along the East Coast of the United States. The ground-based Aerosol Robotic Network (AERONET) measurements at Martha’s Vineyard Coastal Observatory (MVCO) site and Moderate Resolution Imaging Spectrometer (MODIS) sensors on board the Terra and Aqua satellites provide horizontal and temporal variations of aerosol optical depth, while the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) offers the altitudes of aerosol-layers. The combined ground-based and satellite measurements indicated several interesting features among which were the large differences in the aerosol properties observed in July and February. We applied the climatology of aerosol properties for designing the Two-Column Aerosol Project (TCAP), which is supported by the U.S. Department of Energy’s (DOE’s) Atmospheric Radiation Measurement (ARM) Program. The TCAP field campaign involves 12-month deployment (started July 1, 2012) of the ground-based ARM Mobile Facility (AMF) and Mobile Aerosol Observing System (MAOS) on Cape Cod and complimentary aerosol observations from two research aircraft: the DOE Gulfstream-1 (G-1) and the National Aeronautics and Space Administration (NASA) B200 King Air. Using results from the coordinated G-1 and B200 flights during the recent (July, 2012) Intensive Observation Period, we demonstrated that the G-1 in situ measurements and B200 active remote sensing can provide complementary information on the temporal and spatial changes of the aerosol properties off the coast of North America.

Kassianov, Evgueni I.; Chand, Duli; Berg, Larry K.; Fast, Jerome D.; Tomlinson, Jason M.; Ferrare, R.; Hostetler, Chris A.; Hair, John

2012-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "intensive observation period" 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

HALCA's Onboard VLBI Observing System  

Science Journals Connector (OSTI)

......than ones caused by atmospheric varia- tions at most...and the Orion-KL water-vapor maser dur...intensity of the Orion-KL water-vapor maser spot...signals from the pulse generator. The pulse is gen...of coherence loss is atmospheric fluctuations. ther......

Hideyuki Kobayashi; Kiyoaki Wajima; Hisashi Hirabayashi; Yasuhiro Murata; Noriyuki Kawaguchi; Seiji Kameno; Katsunori M. Shibata; Kenta Fujisawa; Makoto Inoue; Haruto Hirosawa

2000-12-01T23:59:59.000Z

402

Table 2a. Electricity Consumption and Electricity Intensities, per Square  

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

assistance viewing this page, please call (202) 586-8800. Energy Information Administration Home Page Home > Commercial Buildings Home > Sq Ft Tables > Table 2a. Electricity Consumption per Sq Ft Table 2a. Electricity Consumption and Electricity Intensities, per Square Foot, Specific to Occupied and Vacant Floorspace, 1992 Building Characteristics All Buildings Using Electricity (thousand) Total Electricity Consumption (trillion Btu) Electricity Intensities (thousand Btu) In Total Floor space In Occupied Floor space In Vacant Floor space Per Square Foot Per Occupied Square Foot Per Vacant Square Foot All Buildings 4,590 2,600 2,563 37 39 42 8 Building Floorspace (Square Feet) 1,001 to 5,000 2,532 334 331 3 48 51 6 5,001 to 10,000 946 250 247 3 36 38 6 10,001 to 25,000

403

Energy Market Impacts of Alternative Greenhouse Gas Intensity Reduction Goals  

Gasoline and Diesel Fuel Update (EIA)

1 1 Energy Market Impacts of Alternative Greenhouse Gas Intensity Reduction Goals March 2006 Energy Information Administration Office of Integrated Analysis and Forecasting U.S. Department of Energy Washington, DC 20585 This report was prepared by the Energy Information Administration, the independent statistical and analytical agency within the Department of Energy. The information contained herein should be attributed to the Energy Information Administration and should not be construed as advocating or reflecting any policy position of the Department of Energy or any other organization. Service Reports are prepared by the Energy Information Administration upon special request and are based on assumptions specified by the requester. Energy Information Administration / Energy Market Impacts of Alternative Greenhouse Gas Intensity Reduction Goals

404

Table 6. Energy intensity by state (2000 - 2010  

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

Energy intensity by state (2000 - 2010)" Energy intensity by state (2000 - 2010)" "thousand Btu per dollar of GDP" ,,,,,,,,,,,,"Change" ,,,,,,,,,,,,"2000 to 2010" "State",2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,"Percent","Absolute" "Alabama",18.27258197,17.12573602,17.40982338,17.21199023,16.87274619,16.36600572,16.26201029,16.16667416,15.88996309,15.31511861,15.97051076,-0.1259849985,-2.302071213 "Alaska",21.74118991,20.61708506,19.78031734,20.18143227,20.28953911,21.09573287,18.72961653,17.79373817,15.85124571,14.13669694,14.24461661,-0.3448097058,-7.496573297 "Arizona",8.723022426,8.474435286,8.399371812,7.993493579,8.274516227,7.602521438,7.232690272,7.328159916,7.62679414,7.507000095,7.628169778,-0.1255129924,-1.094852647

405

Fermilab | Science at Fermilab | Experiments & Projects | Intensity  

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

Intensity Frontier Intensity Frontier MiniBooNE Researchers initiated the Booster Neutrino Experiment, BooNE, to verify definitively the results of the Los Alamos Liquid Scintillator Neutrino Detector experiment. In 1995, the Los Alamos experiment presented strong evidence for the oscillation of muon anti-neutrinos into electron anti-neutrinos. Jasmine Ma inspects one of the phototubes that detects light from neutrino interactions. (Courtesy: Peter Ginter) Jasmine Ma inspects one of the phototubes that detects light from neutrino interactions. (Courtesy: Peter Ginter) The 800-ton detector, called MiniBooNE, searches for neutrino oscillations. The detector is located 500 meters from Fermilab's second neutrino source, the Booster Neutrino Beam or BNB. The presence of neutrinos can only be inferred by detecting the charged

406

For Physicists | Fellowships & Awards | Intensity Frontier Fellows  

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

Application Info Application Info Applications must include a curriculum vitae, and a selected publication list. In addition we request a two-page proposal describing the major contribution that will be made to the Intensity Frontier during the Fellowship, current compensation, and requested dates of support. Applicants holding postdoctoral positions should supply two letters of reference. Applications for awards beginning in 2014 will be accepted until 22 November, 2013. It is anticipated that a second round of applications will be solicited in spring 2014. Applicants should be notified by 20 December 2013. Applications should be made via: Online Application Further queries should be sent to: send email Related Links Fermilab Intensity Frontier Department NOvA Experiment

407

Environmental Design for Patient Families in Intensive Care Unites  

E-Print Network [OSTI]

Open Access to this article benefits you. 2010 Multi-Science Publishing ISSN 1756-8250 Environmental Design for Patient Families in Intensive Care Units by Mahbub Rashid Reprinted from Journal of Healthcare Engineering Vol. 1 · No. 3 · 2010 Journal... wayfinding systems can be extremely costly piecemeal. The ED of a well-integrated in terms of both patient and family wayfinding system should include satisfaction and hard dollars. external building cues, functional • People tend to move along routes...

Rashid, Mahbub

2010-01-01T23:59:59.000Z

408

A microsecond-pulsewidth, intense, light-ion beam accelerator  

SciTech Connect (OSTI)

A relatively long-pulsewidth (0.1-1 {mu}s) intense ion beam accelerator has been built for materials processing applications. An applied-B{sub r}, magnetically-insulated extraction ion diode with dielectric flashover ion source is installed directly onto the output of a 1.2-MV, 300-kJ Marx generator. Initial operation of the accelerator at 0.4 MV indicates satisfactory performance without the need for additional pulse-shaping.

Rej, D.J.; Bartsch, R.R.; Davis, H.A.; Greenly, J.B.; Waganaar, W.J.

1993-07-01T23:59:59.000Z

409

CHALLENGES IN DATA INTENSIVE ANALYSIS AT SCIENTIFIC EXPERIMENTAL USER FACILITIES  

SciTech Connect (OSTI)

This chapter will discuss the critical data intensive analysis and visualiza-tion challenges faced by the experimental science community at large scale and laboratory based facilities. The chapter will further highlight initial solutions under development through community efforts and lay out perspectives for the future, such as the potential of more closely linked experimental and computational science approaches, methods to achieve real time analysis capabilities and the challenges and opportunities of data integration across experimental scales, levels of theory and varying techniques.

Kleese van Dam, Kerstin; Li, Dongsheng; Miller, Stephen D.; Cobb, John W.; Green, Mark L.; Ruby, Catherine L.

2011-12-31T23:59:59.000Z

410

Device for imaging scenes with very large ranges of intensity  

DOE Patents [OSTI]

A device for imaging scenes with a very large range of intensity having a pair of polarizers, a primary lens, an attenuating mask, and an imaging device optically connected along an optical axis. Preferably, a secondary lens, positioned between the attenuating mask and the imaging device is used to focus light on the imaging device. The angle between the first polarization direction and the second polarization direction is adjustable.

Deason, Vance Albert (Idaho Falls, ID)

2011-11-15T23:59:59.000Z

411

NUMERICAL METHODS FOR THE SIMULATION OF HIGH INTENSITY HADRON SYNCHROTRONS.  

SciTech Connect (OSTI)

Numerical algorithms for PIC simulation of beam dynamics in a high intensity synchrotron on a parallel computer are presented. We introduce numerical solvers of the Laplace-Poisson equation in the presence of walls, and algorithms to compute tunes and twiss functions in the presence of space charge forces. The working code for the simulation here presented is SIMBAD, that can be run as stand alone or as part of the UAL (Unified Accelerator Libraries) package.

LUCCIO, A.; D'IMPERIO, N.; MALITSKY, N.

2005-09-12T23:59:59.000Z

412

Systematic intensity errors caused by spectral truncation: origin and remedy  

Science Journals Connector (OSTI)

X-ray absorption by the monochromator determines the wavelength dispersion in the monochromated X-ray beam and explains the values of 0.03, 0.14 and 0.16 for graphite(002)-monochromated Cu, Mo and Rh radiation. To eliminate the systematic intensity truncation errors, caused by the large wavelength dispersion, a correction is proposed based on the applied scan angle and the real beam spectrum.

Lenstra, A.T.H.

2001-10-26T23:59:59.000Z

413

Electron-ion collisions in intensely illuminated plasmas  

SciTech Connect (OSTI)

In the presence of a high-frequency intense uniform electric field, the collisions of electrons with ions can be made more frequent or less frequent, depending on the polarization of the hf field, the direction and magnitude of particle velocity, and the ratio of the plasma Debye length to the size of the electron oscillation in the hf field. The stimulated bremsstrahlung emission is calculated for both circularly and linearly polarized fields. {copyright} {ital 1997 American Institute of Physics.}

Shvets, G.; Fisch, N.J. [Princeton Plasma Physics Laboratory, T-149, Forrestal Center, P.O. Box 451, Princeton, New Jersey 08543 (United States)] [Princeton Plasma Physics Laboratory, T-149, Forrestal Center, P.O. Box 451, Princeton, New Jersey 08543 (United States)

1997-02-01T23:59:59.000Z

414

A possible relationship between Global Warming and Lightning Activity in India during the period 1998-2009  

E-Print Network [OSTI]

Lightning activity on a global scale has been studied season wise using satellite data for the period from 1998 to 2009. Lightning activity shows an increasing trend during the period of study which is highly correlated with atmospheric warming. A similar increasing trend of lightning activity is observed in the Indian region during the pre-monsoon season which is correlated with global lightning trends and warming trends of surface temperature in India. Key words: Global warming, lightning activity, Solar cycle changes

Felix Pereira B.; Priyadarsini G.; T. E. Girish

2010-12-15T23:59:59.000Z

415

EIS-0463: Extension of Scoping Period | Department of Energy  

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

Extension of Scoping Period Extension of Scoping Period EIS-0463: Extension of Scoping Period Presidential Permit Application for Northern Pass Transmission, New Hampshire The U.S. Department of Energy (DOE) is reopening the public scoping period for the Northern Pass Transmission Line Project Environmental Impact Statement (EIS) (DOE/EIS-0463). In anticipation of additional alternative route information being provided by Northern Pass, DOE is reopening the scoping period. DOE will determine the close of the scoping period once the additional routing information is received from Northern Pass, and DOE will provide at least 45 days for public review and scoping comments on any such routing information. EIS-0463-ScopingExtension-2011.pdf More Documents & Publications Application for presidential permit OE Docket No. PP-371 Northern Pass

416

EIS-0463: Reopening of Scoping Period for the Environmental Impact  

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

Reopening of Scoping Period for the Environmental Impact Reopening of Scoping Period for the Environmental Impact Statement EIS-0463: Reopening of Scoping Period for the Environmental Impact Statement Northern Pass Transmission Line Project The U.S. Department of Energy (DOE) is reopening the public scoping period for the Northern Pass Transmission Line Project Environmental Impact Statement (EIS) (DOE/EIS-0463). The scoping period now ends on June 14, 2011. Reopening of Scoping Period for the Northern Pass Transmission Line Project Environmental Impact Statement, EIS-0463 (April 2011) (76 FR 21338) More Documents & Publications EIS-0385: EPA Notice of Availability of the Final Environmental Impact Statement EIS-0425: EPA Notice of Availability of Draft Environmental Impact Statement EIS-0448: Notice of Adoption of an Environmental Impact Statement

417

EIS-0463: Reopening of Scoping Period for the Environmental Impact  

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

463: Reopening of Scoping Period for the Environmental Impact 463: Reopening of Scoping Period for the Environmental Impact Statement EIS-0463: Reopening of Scoping Period for the Environmental Impact Statement Northern Pass Transmission Line Project The U.S. Department of Energy (DOE) is reopening the public scoping period for the Northern Pass Transmission Line Project Environmental Impact Statement (EIS) (DOE/EIS-0463). The scoping period now ends on June 14, 2011. Reopening of Scoping Period for the Northern Pass Transmission Line Project Environmental Impact Statement, EIS-0463 (April 2011) (76 FR 21338) More Documents & Publications EIS-0385: EPA Notice of Availability of the Final Environmental Impact Statement EIS-0408: DOE Notice of Availability of a Programmatic Draft Environmental Impact Statement EIS-0469: Notice of Intent To Prepare an Environmental Impact Statement and

418

Can Bohmian trajectories account for quantum recurrences having classical periodicities?  

E-Print Network [OSTI]

Quantum systems in specific regimes display recurrences at the period of the periodic orbits of the corresponding classical system. We investigate the excited hydrogen atom in a magnetic field -- a prototypical system of 'quantum chaos' -- from the point of view of the de Broglie Bohm (BB) interpretation of quantum mechanics. The trajectories predicted by BB theory are computed and contrasted with the time evolution of the wavefunction, which shows pronounced features at times matching the period of closed orbits of the classical hydrogen in a magnetic field problem. Individual BB trajectories do not possess these periodicities and cannot account for the quantum recurrences. These recurrences can however be explained by BB theory by considering the ensemble of trajectories compatible with an initial statistical distribution, although none of the trajectories of the ensemble are periodic, rendering unclear the dynamical origin of the classical periodicities.

A. Matzkin

2006-07-14T23:59:59.000Z

419

TWO NEW LONG-PERIOD HOT SUBDWARF BINARIES WITH DWARF COMPANIONS  

SciTech Connect (OSTI)

Hot subdwarf stars with F-K main sequence binary companions have been known for decades, but the first orbital periods for such systems were published just recently. Current observations suggest that most have long periods, on the order of years, and that some are or once were hierarchical triple systems. As part of a survey with the Hobby-Eberly Telescope, we have been monitoring the radial velocities of several composite-spectra binaries since 2005 in order to determine their periods, velocities, and eccentricities. Here we present observations and orbital solutions for two of these systems, PG 1449+653 and PG 1701+359. Similar to the other sdB+F/G/K binaries with solved orbits, their periods are long, 909 and 734 days, respectively, and pose a challenge to current binary population synthesis models of hot subdwarf stars. Intrigued by their relatively large systemic velocities, we also present a kinematical analysis of both targets and find that neither is likely a member of the Galactic thin disk.

Barlow, Brad N.; Wade, Richard A. [Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Lab, University Park, PA 16802 (United States); Liss, Sandra E. [Department of Astronomy, University of Virginia, P.O. Box 400325, Charlottesville, VA 22904-4325 (United States); Green, Elizabeth M., E-mail: bbarlow@psu.edu [Steward Observatory, University of Arizona, 933 N. Cherry Avenue, Tucson, AZ 85721 (United States)

2013-07-01T23:59:59.000Z

420

THE QUASI-BIENNIAL PERIODICITY AS A WINDOW ON THE SOLAR MAGNETIC DYNAMO CONFIGURATION  

SciTech Connect (OSTI)

Manifestations of the solar magnetic activity through periodicities of about 11 and 2 years are now clearly seen in all solar activity indices. In this paper, we add information about the mechanism driving the 2-year period by studying the time and latitudinal properties of acoustic modes that are sensitive probes of the subsurface layers. We use almost 17 years of high-quality resolved data provided by the Global Oscillation Network Group to investigate the solar cycle changes in p-mode frequencies for spherical degrees l from 0 to 120 and 1600 {mu}Hz {<=}{nu} {<=} 3500 {mu}Hz. For both periodic components of solar activity, we locate the origin of the frequency shift in the subsurface layers and find evidence that a sudden enhancement in amplitude occurs in just the last few hundred kilometers. We also show that, in both cases, the size of the shift increases toward equatorial latitudes and from minimum to maximum solar activity, but, in agreement with previous findings, the quasi-biennial periodicity (QBP) causes a weaker shift in mode frequencies and a slower enhancement than that caused by the 11-year cycle. We compare our observational findings with the features predicted by different models, that try to explain the origin of this QBP and conclude that the observed properties could result from the beating between a dipole and quadrupole magnetic configuration of the dynamo.

Simoniello, R.; Turck-Chieze, S. [Laboratoire AIM, CEA/DSM-CNRS-Universite Paris Diderot, CEA, IRFU, SAp, Centre de Saclay, F-91191 Gif-sur-Yvette (France); Jain, K.; Tripathy, S. C.; Hill, F. [National Solar Observatory, Tucson, AZ 85719 (United States); Baldner, C. [W. W. Hansen Experimental Physics Laboratory, Stanford University, Stanford, CA 94305-4085 (United States); Finsterle, W. [PMOD/WRC Physikalisch-Meteorologisches Observatorium Davos-World Radiation Center, 7260 Davos Dorf (Switzerland); Roth, M., E-mail: rosaria.simoniello@cea.fr [Kiepenheuer Institute for Solar Physics, Freiburg (Germany)

2013-03-10T23:59:59.000Z

Note: This page contains sample records for the topic "intensive observation period" 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

Molecules in intense laser fields: Beyond the dipole approximation  

SciTech Connect (OSTI)

The time-dependent Schroedinger equation is solved for a Born-Oppenheimer (static nuclei) three-dimensional H{sub 2}{sup +} in super intense laser fields (I=4x10{sup 18}, 10{sup 19}, and 4x10{sup 19} W/cm{sup 2}) at wavelength {lambda}{sub L}=45 nm and 25 nm to assess the influence of nondipolar (magnetic) effects on high order harmonic generation spectra in molecules. It is found that even harmonics appear due to the magnetic field component direction perpendicular to the electric field polarization with intensities about two orders of magnitude less than the odd harmonics emitted along the electric field polarization. The even harmonics exhibit plateaus with cutoffs which exceed in intensity the odd harmonic plateaus and maximum energies predicted by semiclassical electron recollision models. Although the spectra are weak, the wavelength of the recollision electron in the maximum energy regions correspond to subatomic dimensions and the corresponding emitted photons have subnanometer wavelengths.

Bandrauk, A. D.; Lu, H. Z. [Laboratoire de Chimie Theorique, Universite de Sherbrooke, Sherbrooke, Que, J1K 2R1 (Canada)

2006-01-15T23:59:59.000Z

422

Corpuscular theory of intensity noise with gain compression  

Science Journals Connector (OSTI)

When light from a laser is fully absorbed by an ideal detector, the detected current exhibits a fluctuation called here ‘‘photonic noise.’’ The spectral density of Iintensity noiseR, defined as the difference of the photonic-noise spectral density and a term corresponding to the shot-noise level, is negative for sub-Poissonian statistics. The usefulness of the relative-intensity-noise concept is that it is independent of any linear attenuation. A simple circuit theory of intensity noise based only on energy conservation and the Nyquist formula (zero-point fluctuation) leads to expressions of the spectral densities that agree with quantum theory even for sub-Poissonian photon statistics. When the optical gain and loss are frequency independent, the circuit theory reduces to a corpuscular theory that keeps track of the time rates of change of electron and photon numbers treated as continuous variables. Consideration is given to laser diodes in which the rate of electron-photon conversion depends nonlinearly on both the carrier and photon densities. The cross-spectral density between electrical-voltage and relative photonic fluctuations is independent of internal or external optical losses. Standard rate equations are inaccurate in the case of gain compression. Very general yet simple formulas for intensity noise are applied to room-temperature GaAs laser diodes, using recently calculated optical parameters.

J. Arnaud

1992-02-01T23:59:59.000Z

423

Cosmology with a SKA HI intensity mapping survey  

E-Print Network [OSTI]

HI intensity mapping (IM) is a novel technique capable of mapping the large-scale structure of the Universe in three dimensions and delivering exquisite constraints on cosmology, by using HI as a biased tracer of the dark matter density field. This is achieved by measuring the intensity of the redshifted 21cm line over the sky in a range of redshifts without the requirement to resolve individual galaxies. In this chapter, we investigate the potential of SKA1 to deliver HI intensity maps over a broad range of frequencies and a substantial fraction of the sky. By pinning down the baryon acoustic oscillation and redshift space distortion features in the matter power spectrum -- thus determining the expansion and growth history of the Universe -- these surveys can provide powerful tests of dark energy models and modifications to General Relativity. They can also be used to probe physics on extremely large scales, where precise measurements of spatial curvature and primordial non-Gaussianity can be used to test in...

Santos, Mario G; Alonso, David; Camera, Stefano; Ferreira, Pedro G; Bernardi, Gianni; Maartens, Roy; Viel, Matteo; Villaescusa-Navarro, Francisco; Abdalla, Filipe B; Jarvis, Matt; Metcalf, R Benton; Pourtsidou, A; Wolz, Laura

2015-01-01T23:59:59.000Z

424

Cosmology with a SKA HI intensity mapping survey  

E-Print Network [OSTI]

HI intensity mapping (IM) is a novel technique capable of mapping the large-scale structure of the Universe in three dimensions and delivering exquisite constraints on cosmology, by using HI as a biased tracer of the dark matter density field. This is achieved by measuring the intensity of the redshifted 21cm line over the sky in a range of redshifts without the requirement to resolve individual galaxies. In this chapter, we investigate the potential of SKA1 to deliver HI intensity maps over a broad range of frequencies and a substantial fraction of the sky. By pinning down the baryon acoustic oscillation and redshift space distortion features in the matter power spectrum -- thus determining the expansion and growth history of the Universe -- these surveys can provide powerful tests of dark energy models and modifications to General Relativity. They can also be used to probe physics on extremely large scales, where precise measurements of spatial curvature and primordial non-Gaussianity can be used to test inflation; on small scales, by measuring the sum of neutrino masses; and at high redshifts where non-standard evolution models can be probed. We discuss the impact of foregrounds as well as various instrumental and survey design parameters on the achievable constraints. In particular we analyse the feasibility of using the SKA1 autocorrelations to probe the large-scale signal.

Mario G. Santos; Philip Bull; David Alonso; Stefano Camera; Pedro G. Ferreira; Gianni Bernardi; Roy Maartens; Matteo Viel; Francisco Villaescusa-Navarro; Filipe B. Abdalla; Matt Jarvis; R. Benton Metcalf; A. Pourtsidou; Laura Wolz

2015-01-16T23:59:59.000Z

425

Kink waves in solar spicules: observation and modelling  

E-Print Network [OSTI]

Height series of Doppler observation at the solar limb (covering 3800 - 8700 km distance above the photosphere) in $H_{\\alpha}$ spectral line obtained by big coronagraph of Abastumani Astrophysical Observatory \\citep{khu} show the periodic spatial distribution of Doppler velocities in spicules. We suggest that the periodic spatial distribution is caused by propagating kink waves in spicule. The wave length is found to be $\\sim$ 3500 km. Numerical modelling of kink wave propagation from the photosphere to observed heights gives the wave length of kink waves at the photosphere to be $\\sim$ 1000 km, which indicates to the granular origin of the waves. The period of waves is estimated to be in the range of 35-70 s.

V. Kukhianidze; T. V. Zaqarashvili; E. Khutsishvili

2005-10-14T23:59:59.000Z

426

EIS-0489: Notice of Comment Period Extension and Additional Scoping...  

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

Meetings EIS-0489: Notice of Comment Period Extension and Additional Scoping Meetings Jordan Cove Liquefaction Project (Coos County, OR) and Pacific Connector Pipeline Project...

427

Guidance on the Required Period for Grantees to Obligate Funds...  

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

on the Required Period for Grantees to Obligate Funds and the Procedures for Reporting of Obligated Funds for the Energy Efficiency Conservation Block Grant (EECBG) Program...

428

DURING THIS REPORTING PERIOD, WE ISSUED 45 REPORTS; IDENTIFIED...  

Energy Savers [EERE]

components that have a limited lifetime due to their use of tritium, a radioactive gas which decays over time. Periodic replacement of these components is necessary to...

429

EIS-0369: Notice of Public Comment Period Extension and Additional...  

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

Notice of Public Comment Period Extension and Additional Public Meeting Supplemental Yucca Mountain Rail Corridor and Rail Alignment The Department of Energy is now announcing...

430

Green's function analysis of periodic structures in computational electromagnetics  

E-Print Network [OSTI]

the two-dimensional periodic Green's function," IEEE Trans.evaluation of the Green's function for the Helmholtzrepresentations of certain Green's functions," J. Comp.

Van Orden, Derek

2011-01-01T23:59:59.000Z

431

Microsoft Word - PARS II Process Document - Close Period 2013...  

Office of Environmental Management (EM)

the process of preparing the APM Deputy Secretary Monthly Report and closing the DOE Reporting Period in PARS II. SCOPE This process applies to the Headquarters Office of...

432

Periodic Boundary Conditions in the ALEGRA Finite Element Code  

SciTech Connect (OSTI)

This document describes the implementation of periodic boundary conditions in the ALEGRA finite element code. ALEGRA is an arbitrary Lagrangian-Eulerian multi-physics code with both explicit and implicit numerical algorithms. The periodic boundary implementation requires a consistent set of boundary input sets which are used to describe virtual periodic regions. The implementation is noninvasive to the majority of the ALEGRA coding and is based on the distributed memory parallel framework in ALEGRA. The technique involves extending the ghost element concept for interprocessor boundary communications in ALEGRA to additionally support on- and off-processor periodic boundary communications. The user interface, algorithmic details and sample computations are given.

AIDUN,JOHN B.; ROBINSON,ALLEN C.; WEATHERBY,JOE R.

1999-11-01T23:59:59.000Z

433

(dfdf(dfdfdfdfdfdfdfdf Observation of Excitonic Effects  

E-Print Network [OSTI]

in understanding fundamental properties of carbon nanotubes (CNTs) [1] ?Light absorption excites strongly with different RBM frequency are in resonance ?We performed measurements of intensity profiles at temperatures between 300 K and 873 K ?Sample: nanotubes forest (unbundled ensemble) INTENSITY PROFILES ?RBM intensity

Nabben, Reinhard

434

Quantum Energy Expectation in Periodic Time-Dependent hamiltonians via Green Functions  

E-Print Network [OSTI]

Let $U_F$ be the Floquet operator of a time periodic hamiltonian $H(t)$. For each positive and discrete observable $A$ (which we call a {\\em probe energy}), we derive a formula for the Laplace time average of its expectation value up to time $T$ in terms of its eigenvalues and Green functions at the circle of radius $e^{1/T}$. Some simple applications are provided which support its usefulness.

Cesar R. de Oliveira; Mariza S. Simsen

2009-07-31T23:59:59.000Z

435

Observations of pP in the Short-Period Phases of NTS Explosions Recorded at Norway  

Science Journals Connector (OSTI)

......Massachusetts P waves from 11 Nevada Test Site explosions, recorded digitally...3)* Summary P waves from 11 Nevada Test Site explosions, recorded digitally...results of applying this method to Nevada Test Site (NTS) explosions recorded digitally......

C. W. Frasier

1972-12-01T23:59:59.000Z

436

THE NEAR-INFRARED BACKGROUND INTENSITY AND ANISOTROPIES DURING THE EPOCH OF REIONIZATION  

SciTech Connect (OSTI)

A fraction of the extragalactic near-infrared (near-IR) background light involves redshifted photons from the ultraviolet (UV) emission from galaxies present during reionization at redshifts above 6. The absolute intensity and the anisotropies of the near-IR background provide an observational probe of the first-light galaxies and their spatial distribution. We estimate the extragalactic background light intensity during reionization by accounting for the stellar and nebular emission from first-light galaxies. We require the UV photon density from these galaxies to generate a reionization history that is consistent with the optical depth to electron scattering from cosmic microwave background measurements. We also require the bright-end luminosity function (LF) of galaxies in our models to reproduce the measured Lyman-dropout LFs at redshifts of 6-8. The absolute intensity is about 0.1-0.4 nW m{sup -2} sr{sup -1} at the peak of its spectrum at {approx}1.1 {mu}m. We also discuss the anisotropy power spectrum of the near-IR background using a halo model to describe the galaxy distribution. We compare our predictions for the anisotropy power spectrum to existing measurements from deep near-IR imaging data from Spitzer/IRAC, Hubble/NICMOS, and AKARI. The predicted rms fluctuations at tens of arcminute angular scales are roughly an order of magnitude smaller than the existing measurements. While strong arguments have been made that the measured fluctuations do not have an origin involving faint low-redshift galaxies, we find that measurements in the literature are also incompatible with galaxies present during the era of reionization. The measured near-IR background anisotropies remain unexplained with an unknown origin.

Cooray, Asantha; Gong Yan; Smidt, Joseph [Department of Physics and Astronomy, University of California, Irvine, CA 92697 (United States); Santos, Mario G. [CENTRA, Instituto Superior Tecnico, Technical University of Lisbon, Lisboa 1049-001 (Portugal)

2012-09-01T23:59:59.000Z

437

Fermi-LAT gamma-ray anisotropy and intensity explained by unresolved Radio-Loud Active Galactic Nuclei  

E-Print Network [OSTI]

Radio-loud active galactic nuclei (AGN) are expected to contribute substantially to both the intensity and anisotropy of the isotropic gamma-ray background (IGRB). In turn, the measured properties of the IGRB can be used to constrain the characteristics of proposed contributing source classes. We consider individual subclasses of radio-loud AGN, including low-, intermediate-, and high-synchrotron-peaked BL Lacertae objects, flat-spectrum radio quasars, and misaligned AGN. Using updated models of the gamma-ray luminosity functions of these populations, we evaluate the energy-dependent contribution of each source class to the intensity and anisotropy of the IGRB. We find that collectively radio-loud AGN can account for the entirety of the IGRB intensity and anisotropy as measured by the Fermi Large Area Telescope (LAT). Misaligned AGN provide the bulk of the measured intensity but a negligible contribution to the anisotropy, while high-synchrotron-peaked BL Lacertae objects provide the dominant contribution to the anisotropy. In anticipation of upcoming measurements with the Fermi-LAT and the forthcoming Cherenkov Telescope Array, we predict the anisotropy in the broader energy range that will be accessible to future observations.

Mattia Di Mauro; Alessandro Cuoco; Fiorenza Donato; Jennifer M. Siegal-Gaskins

2014-07-11T23:59:59.000Z

438

MAXI J1659-152: the shortest orbital period black-hole binary  

E-Print Network [OSTI]

Following the detection of a bright new X-ray source, MAXI J1659-152, a series of observations was triggered with almost all currently flying high-energy missions. We report here on XMM-Newton, INTEGRAL and RXTE observations during the early phase of the X-ray outburst of this transient black-hole candidate. We confirm the dipping nature in the X-ray light curves. We find that the dips recur on a period of 2.4139+/-0.0005 hrs, and interpret this as the orbital period of the system. It is thus the shortest period black-hole X-ray binary known to date. Using the various observables, we derive the properties of the source. The inclination of the accretion disk with respect to the line of sight is estimated to be 60-75 degrees. The companion star to the black hole is possibly a M5 dwarf star, with a mass and radius of about 0.15 M_sun and 0.23 R_sun, respectively. The system is rather compact (orbital separation is about 1.35 R_sun) and is located at a distance of roughly 7 kpc. In quiescence, MAXI J1659-152 is e...

Kuulkers, E; van der Horst, A J; Belloni, T; Chenevez, J; Ibarra, A; Munoz-Darias, T; Bazzano, A; Bel, M Cadolle; De Cesare, G; Trigo, M Diaz; Jourdain, E; Lubinski, P; Natalucci, L; Ness, J -U; Parmar, A; Pollock, A M T; Rodriguez, J; Roques, J -P; Sanchez-Fernandez, C; Ubertini, P; Winkler, C

2011-01-01T23:59:59.000Z

439

TEMPERATURE AND EXTREME-ULTRAVIOLET INTENSITY IN A CORONAL PROMINENCE CAVITY AND STREAMER  

SciTech Connect (OSTI)

We analyze the temperature and EUV line emission of a coronal cavity and surrounding streamer in terms of a morphological forward model. We use a series of iron line ratios observed with the Hinode Extreme-ultraviolet Imaging Spectrograph (EIS) on 2007 August 9 to constrain temperature as a function of altitude in a morphological forward model of the streamer and cavity. We also compare model predictions to the EIS EUV line intensities and polarized brightness (pB) data from the Mauna Loa Solar Observatory (MLSO) Mark 4 K-coronameter. This work builds on earlier analysis using the same model to determine geometry of and density in the same cavity and streamer. The fit to the data with altitude-dependent temperature profiles indicates that both the streamer and cavity have temperatures in the range 1.4-1.7 MK. However, the cavity exhibits substantial substructure such that the altitude-dependent temperature profile is not sufficient to completely model conditions in the cavity. Coronal prominence cavities are structured by magnetism so clues to this structure are to be found in their plasma properties. These temperature substructures are likely related to structures in the cavity magnetic field. Furthermore, we find that the model overestimates the EUV line intensities by a factor of 4-10, without overestimating pB. We discuss this difference in terms of filling factors and uncertainties in density diagnostics and elemental abundances.

Kucera, T. A. [NASA/GSFC, Code 671, Greenbelt, MD 20771 (United States); Gibson, S. E.; Schmit, D. J. [HAO/NCAR, P.O. Box 3000, Boulder, CO 80307-3000 (United States); Landi, E. [Department of Atmospheric, Oceanic and Space Science, Space Research Building, University of Michigan, 2455 Hayward St., Ann Arbor, MI 48109-2143 (United States); Tripathi, D. [Inter-University Centre for Astronomy and Astrophysics, Post Bag-4, Ganeshkhind, Pune University Campus, Pune 411 007 (India)

2012-09-20T23:59:59.000Z

440

Dual periodicities in the rotational modulation of Saturn narrowband emissions  

E-Print Network [OSTI]

Dual periodicities in the rotational modulation of Saturn narrowband emissions S.Y. Ye,1 D. A emissions is examined, restricting the spacecraft location to either the northern or the southern hemisphere of Saturn. It is found that in both hemispheres, the modulation period of 5 kHz narrowband emissions has two

Gurnett, Donald A.

Note: This page contains sample records for the topic "intensive observation period" 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

Quantum coherent switch utilizing commensurate nanoelectrode and charge density periodicities  

DOE Patents [OSTI]

A quantum coherent switch having a substrate formed from a density wave (DW) material capable of having a periodic electron density modulation or spin density modulation, a dielectric layer formed onto a surface of the substrate that is orthogonal to an intrinsic wave vector of the DW material; and structure for applying an external spatially periodic electrostatic potential over the dielectric layer.

Harrison, Neil (Santa Fe, NM); Singleton, John (Los Alamos, NM); Migliori, Albert (Santa Fe, NM)

2008-08-05T23:59:59.000Z

442

Another look at periodic wavelets Brody Dylan Johnson  

E-Print Network [OSTI]

Another look at periodic wavelets Brody Dylan Johnson St. Louis University 16 May 2009 Brody Dylan Johnson (St. Louis University) Another look at periodic wavelets 16 May 2009 1 / 31 #12;Overview Overview. (see, e.g., the texts of Meyer and Daubechies) Brody Dylan Johnson (St. Louis University) Another look

Johnson, Brody Dylan

443

Photonic bandgaps of periodic multilayers with diffuse interfaces  

E-Print Network [OSTI]

of the locations and widths of the forbidden bandgaps is standard [1­3]. However, generally the interfaces betweenPhotonic bandgaps of periodic multilayers with diffuse interfaces Jean-Michel André* , Philippe-michel.andre1@upmc.fr The photonic bandgap of periodic multilayers with diffuse interface is calculated

Boyer, Edmond

444

BOTT PERIODICITY AND THE INDEX OF ELLIPTIC OPERATORS  

Science Journals Connector (OSTI)

......Articles BOTT PERIODICITY AND THE INDEX OF ELLIPTIC OPERATORS M. F...University BOTT PERIODICITY AND THE INDEX OF ELLIPTIC OPERATORS By M...Equivariant JT-theory and completion' (to appear). 9. M. F...and I. M. Singer, 'The index of elliptio operators I......

M. F. ATIYAH

1968-01-01T23:59:59.000Z

445

Insecticides and my Osmia cornifrons Nesting Container Nesting Period  

E-Print Network [OSTI]

Insecticides and my Osmia cornifrons Nesting Container Nesting Period The Osmia cornifrons nesting male offspring. The end caps of nesting tubes made by older females are thin and weak, and they tend to break easily. In addition, near the end of the nesting period the numbers of parasites and predators

446

EIS-0431: Extension of Public Comment Period | Department of Energy  

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

31: Extension of Public Comment Period 31: Extension of Public Comment Period EIS-0431: Extension of Public Comment Period Hydrogen Energy California's Integrated Gasification Combined Cycle and Carbon Capture and Sequestration Project, CA The U.S. Department of Energy (DOE) published a notice of availability on July 22, 2013 (78 FR 43870) that provided for a comment period ending September 3, 2013. DOE is extending the public comment period to October 1, 2013, and announces public hearings for the Hydrogen Energy California's Integrated Gasification Combined Cycle Project Preliminary Staff Assessment/Draft Environmental Impact Statement (PSA/DEIS; DOE/EIS--0431D; 78 FR 52764). The PSA/DEIS is available on the internet at http://www.energy.gov/nepa/downloads/eis-0431-draft-environmental-impact-statement

447

EIS-0431: Extension of Public Comment Period | Department of Energy  

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

Public Comment Period Public Comment Period EIS-0431: Extension of Public Comment Period Hydrogen Energy California's Integrated Gasification Combined Cycle and Carbon Capture and Sequestration Project, CA The U.S. Department of Energy (DOE) published a notice of availability on July 22, 2013 (78 FR 43870) that provided for a comment period ending September 3, 2013. DOE is extending the public comment period to October 1, 2013, and announces public hearings for the Hydrogen Energy California's Integrated Gasification Combined Cycle Project Preliminary Staff Assessment/Draft Environmental Impact Statement (PSA/DEIS; DOE/EIS--0431D; 78 FR 52764). The PSA/DEIS is available on the internet at http://www.energy.gov/nepa/downloads/eis-0431-draft-environmental-impact-statement or on the CEC electronic docket site at

448

Department of Energy Extends Public Comment Period | Department of Energy  

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

Department of Energy Extends Public Comment Period Department of Energy Extends Public Comment Period Department of Energy Extends Public Comment Period September 29, 2011 - 12:00pm Addthis Media Contacts Darwin J. Morgan morgan@nv.doe.gov 702-295-3521 Kelly K. Snyder snyderk@nv.doe.gov 702-295-3521 In response to public comments and requests, the U.S. Department of Energy National Nuclear Security Administration Nevada Site Office is extending the public comment period for the Draft Site-Wide Environmental Impact Statement (SWEIS) for the Nevada National Security Site (NNSS) and Off-Site Locations in Nevada. The formal comment period will close on December 2, 2011, rather than October 27. Within the draft SWEIS, the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office presents a formal analysis of

449

Department of Energy Extends Public Comment Period | Department of Energy  

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

Department of Energy Extends Public Comment Period Department of Energy Extends Public Comment Period Department of Energy Extends Public Comment Period September 29, 2011 - 12:00pm Addthis Media Contacts Darwin J. Morgan morgan@nv.doe.gov 702-295-3521 Kelly K. Snyder snyderk@nv.doe.gov 702-295-3521 In response to public comments and requests, the U.S. Department of Energy National Nuclear Security Administration Nevada Site Office is extending the public comment period for the Draft Site-Wide Environmental Impact Statement (SWEIS) for the Nevada National Security Site (NNSS) and Off-Site Locations in Nevada. The formal comment period will close on December 2, 2011, rather than October 27. Within the draft SWEIS, the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office presents a formal analysis of

450

Extension of Comment Period on Improving Performance of Federal Permitting  

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

Extension of Comment Period on Improving Performance of Federal Extension of Comment Period on Improving Performance of Federal Permitting and Review of Infrastructure Projects: Federal Register Notice Volume 78, No. 186 - September 25, 2013 Extension of Comment Period on Improving Performance of Federal Permitting and Review of Infrastructure Projects: Federal Register Notice Volume 78, No. 186 - September 25, 2013 On August 29, 2013, the U.S. Department of Energy (DOE) published a Request for Information seeking information on a draft Integrated, Interagency Pre-Application (IIP) Process for significant onshore electric transmission projects requiring Federal authorizations. This notice announces an extension of the public comment period for submitting comments regarding the IIP Process to October 31, 2013. Extension of Comment Period on Improving Performance of Federal Permitting

451

Extension of Comment Period on Improving Performance of Federal Permitting  

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

Extension of Comment Period on Improving Performance of Federal Extension of Comment Period on Improving Performance of Federal Permitting and Review of Infrastructure Projects: Federal Register Notice Volume 78, No. 186 - September 25, 2013 Extension of Comment Period on Improving Performance of Federal Permitting and Review of Infrastructure Projects: Federal Register Notice Volume 78, No. 186 - September 25, 2013 On August 29, 2013, the U.S. Department of Energy (DOE) published a Request for Information seeking information on a draft Integrated, Interagency Pre-Application (IIP) Process for significant onshore electric transmission projects requiring Federal authorizations. This notice announces an extension of the public comment period for submitting comments regarding the IIP Process to October 31, 2013. Extension of Comment Period on Improving Performance of Federal Permitting

452

The orbital period of the eclipsing dwarf nova CG Draconis  

E-Print Network [OSTI]

We have performed time resolved photometry on the dwarf nova CG Dra and have established for the first time that it is an eclipsing system. By measuring the times of the eclipses, we determined the orbital period as 0.18864(4) d, or 4h 31m 38 +/- 3s. This value is consistent with the shorter of two periods proposed from earlier spectroscopic studies. The orbital period places CG Dra above the period gap. The symmetrical eclipses are of short duration (FWHM 18+/-2 min, or 0.066(7) of the orbital period) and shallow (average 0.16+/-0.02 mag), suggesting a grazing eclipse which is consistent with an orbital inclination just above the critical value. Flickering persists through the eclipse which means that the flickering source is not occulted by the secondary star.

Jeremy Shears; David Boyd; Steve Brady; Roger Pickard

2008-02-04T23:59:59.000Z

453

Economic potential of intensive culture of Penaeus vannamei in Mexico  

E-Print Network [OSTI]

, with its subtropical-tropical climate and extensive coastlines, would seem to have great potential for shrimp farming. Large tracts of land suitable for shrimp culture do exist in several states on the Pacific coast of this country. However, not all... the Pacific-coast states are so favored: Some of them do not have the kind of land needed for shrimp farming, or appropriate land is scarce, or there are ownership problems. Intensive systems developed for the culture of Penaeus vannamei in the continental...

De La Mora Perez-Arce, Jose Bernardo

1991-01-01T23:59:59.000Z

454

HELIOS: A high intensity chopper spectrometer at LANSCE  

SciTech Connect (OSTI)

A proposal to construct a high intensity chopper spectrometer at LANSCE as part of the SPSS upgrade project is discussed. HELIOS will be optimized for science requiring high sensitivity neutron spectroscopy. This includes studies of phonon density of states in small polycrystalline samples, magnetic excitations in quantum magnets and highly correlated electron systems, as well as parametric studies (as a function of pressure, temperature, or magnetic field) of S(Q,{omega}). By employing a compact design together with the use of supermirror guide in the incident flight path the neutron flux at HELIOS will be significantly higher than any other comparable instrument now operating.

Mason, T.E. [Oak Ridge National Lab., TN (United States); Broholm, C. [Johns Hopkins Univ., Baltimore, MD (United States). Dept. of Physics and Astronomy; Fultz, B. [California Inst. of Tech., Pasadena, CA (United States). Dept. of Materials Science] [and others

1998-12-31T23:59:59.000Z

455

Data-intensive computing on numerically-insensitive supercomputers  

SciTech Connect (OSTI)

With the advent of the era of petascale supercomputing, via the delivery of the Roadrunner supercomputing platform at Los Alamos National Laboratory, there is a pressing need to address the problem of visualizing massive petascale-sized results. In this presentation, I discuss progress on a number of approaches including in-situ analysis, multi-resolution out-of-core streaming and interactive rendering on the supercomputing platform. These approaches are placed in context by the emerging area of data-intensive supercomputing.

Ahrens, James P [Los Alamos National Laboratory; Fasel, Patricia K [Los Alamos National Laboratory; Habib, Salman [Los Alamos National Laboratory; Heitmann, Katrin [Los Alamos National Laboratory; Lo, Li - Ta [Los Alamos National Laboratory; Patchett, John M [Los Alamos National Laboratory; Williams, Sean J [Los Alamos National Laboratory; Woodring, Jonathan L [Los Alamos National Laboratory; Wu, Joshua [Los Alamos National Laboratory; Hsu, Chung - Hsing [ONL

2010-12-03T23:59:59.000Z

456

Calibrating X-ray Imaging Devices for Accurate Intensity Measurement  

SciTech Connect (OSTI)

The purpose of the project presented is to develop methods to accurately calibrate X-ray imaging devices. The approach was to develop X-ray source systems suitable for this endeavor and to develop methods to calibrate solid state detectors to measure source intensity. NSTec X-ray sources used for the absolute calibration of cameras are described, as well as the method of calibrating the source by calibrating the detectors. The work resulted in calibration measurements for several types of X-ray cameras. X-ray camera calibration measured efficiency and efficiency variation over the CCD. Camera types calibrated include: CCD, CID, back thinned (back illuminated), front illuminated.

Haugh, M. J.

2011-07-28T23:59:59.000Z

457

Absorption Intensities of Ethylenes and Acetylenes in the Vacuum Ultraviolet  

Science Journals Connector (OSTI)

The spectra of three octenes cyclohexene and 2 3?dihydropyrane and of octyne?1 and ?2 were obtained in n?heptane solution to 1700A. Intensity measurements on ethylene vapor to 1550A enable the contribution of the Rydberg bands to be separated from that of the continuum. The f?values in ethylene and the octenes are about 0.30 agreeing with Mulliken and Rieke's theoretical prediction within the experimental uncertainty of about 20 percent. The f?values of the octynes are about the same but those of cyclohexene and dihydropyrane are about 0.20.

J. R. Platt; H. B. Klevens; W. C. Price

1949-01-01T23:59:59.000Z

458

Energy resource management for energy-intensive manufacturing industries  

SciTech Connect (OSTI)

A program to introduce energy resource management into an energy-intensive manufacturing industry is presented. The food industry (SIC No. 20) was chosen and 20 companies were selected for interviews, but thirteen were actually visited. The methodology for this program is detailed. Reasons for choosing the food industry are described. The substance of the information gained and the principal conclusions drawn from the interviews are given. Results of the model Energy Resource Management Plan applied to three companies are compiled at length. Strategies for dissemination of the information gained are described. (MCW)

Brenner, C.W.; Levangie, J.

1981-10-01T23:59:59.000Z

459

Effects of pulp consistency and mixing intensity on ozone bleaching  

SciTech Connect (OSTI)

Conventional wisdom holds that ozone bleaching is feasible only at low or high pulp consistencies. However, recent research suggests that ozone bleaching at medium consistency is possible under conditions of high-intensity mixing. This article presents experimental results for softwood and hardwood pulps that were ozone-bleached over a range of consistencies (3-40%) and mixing conditions. Ozone was pressurized and delivered by a proprietary automated system. Results indicate that ozone bleaching at medium consistency can be as effective as bleaching at high consistency. Medium-consistency bleaching has the advantage of greater selectivity, resulting in higher pulp viscosity.

Hurst, M.M. (Quantum Technologies, Inc., Twinsburg, OH (United States))

1993-04-01T23:59:59.000Z

460

High intensity line source for x-ray spectrometer calibration  

SciTech Connect (OSTI)

A high intensity electron-impact x-ray source using a one-dimensional Pierce lens has been built for the purpose of calibrating a bent crystal x-ray spectrometer. This source focuses up to 100 mA of 20-keV electrons to a line on a liquid-cooled anode. The line (which can serve as a virtual slit for the spectrometer) measures approximately 800 ..mu.. x 2 cm. The source is portable and therefore adaptable to numerous types of spectrometer applications. One particular application, the calibration of a high resolution (r = 10/sup 4/) time-resolved cyrstal spectrometer, will be discussed in detail.

Thoe, R.S.

1986-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "intensive observation period" 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

FERMI LARGE AREA TELESCOPE OBSERVATIONS OF GRB 110625A  

SciTech Connect (OSTI)

Gamma-ray bursts (GRBs) that emit photons at GeV energies form a small but significant population of GRBs. However, the number of GRBs whose GeV-emitting period is simultaneously observed in X-rays remains small. We report {gamma}-ray observations of GRB 110625A using Fermi's Large Area Telescope in the energy range 100 MeV-20 GeV. Gamma-ray emission at these energies was clearly detected using data taken between 180 s and 580 s after the burst, an epoch after the prompt emission phase. The GeV light curve differs from a simple power-law decay, and probably consists of two emission periods. Simultaneous Swift X-Ray Telescope observations did not show flaring behaviors as in the case of GRB 100728A. We discuss the possibility that the GeV emission is the synchrotron self-Compton radiation of underlying ultraviolet flares.

Tam, P. H. T.; Kong, A. K. H. [Institute of Astronomy and Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan (China); Fan Yizhong, E-mail: phtam@phys.nthu.edu.tw [Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008 (China)

2012-08-01T23:59:59.000Z

462

Intense terahertz emission from molecular beam epitaxy-grown GaAs/GaSb(001)  

SciTech Connect (OSTI)

Intense terahertz (THz) electromagnetic wave emission was observed in undoped GaAs thin films deposited on (100) n-GaSb substrates via molecular beam epitaxy. GaAs/n-GaSb heterostructures were found to be viable THz sources having signal amplitude 75% that of bulk p-InAs. The GaAs films were grown by interruption method during the growth initiation and using various metamorphic buffer layers. Reciprocal space maps revealed that the GaAs epilayers are tensile relaxed. Defects at the i-GaAs/n-GaSb interface were confirmed by scanning electron microscope images. Band calculations were performed to infer the depletion region and electric field at the i-GaAs/n-GaSb and the air-GaAs interfaces. However, the resulting band calculations were found to be insufficient to explain the THz emission. The enhanced THz emission is currently attributed to a piezoelectric field induced by incoherent strain and defects.

Sadia, Cyril P.; Laganapan, Aleena Maria; Agatha Tumanguil, Mae; Estacio, Elmer; Somintac, Armando; Salvador, Arnel [National Institute of Physics, University of the Philippines Diliman, Quezon City 1101 (Philippines); Que, Christopher T. [Physics Department, De La Salle University, 2401 Taft Avenue, Manila 1004 (Philippines); Yamamoto, Kohji; Tani, Masahiko [Research Center for Development of Far-Infrared Region, University of Fukui, Fukui 910-8507 (Japan)

2012-12-15T23:59:59.000Z

463

Intense femtosecond photoexcitation of bulk and monolayer MoS2  

E-Print Network [OSTI]

The effect of femtosecond laser irradiation on bulk and single-layer MoS2 on silicon oxide is studied. Optical, Field Emission Scanning Electron Microscopy (FESEM) and Raman microscopies were used to quantify the damage. The intensity of A1g and E2g1 vibrational modes was recorded as a function of the number of irradiation pulses. The observed behavior was attributed to laser-induced bond breaking and subsequent atoms removal due to electronic excitations. The single-pulse optical damage threshold was determined for the monolayer and bulk under 800nm and 1030nm pulsed laser irradiation and the role of two-photon versus one photon absorption effects is discussed.

Paradisanos, I; Fotakis, C; Kioseoglou, G; Stratakis, E

2015-01-01T23:59:59.000Z

464

Baryon Acoustic Oscillation Intensity Mapping as a Test of Dark Energy  

E-Print Network [OSTI]

The expansion of the universe appears to be accelerating, and the mysterious anti-gravity agent of this acceleration has been called ``dark energy''. To measure the dynamics of dark energy, Baryon Acoustic Oscillations (BAO) can be used. Previous discussions of the BAO dark energy test have focused on direct measurements of redshifts of as many as $10^9$ individual galaxies, by observing the 21cm line or by detecting optical emission. Here we show how the study of acoustic oscillation in the 21 cm brightness can be accomplished by economical three dimensional intensity mapping. If our estimates gain acceptance they may be the starting point for a new class of dark energy experiments dedicated to large angular scale mapping of the radio sky, shedding light on dark energy.

Tzu-Ching Chang; Ue-Li Pen; Jeffrey B. Peterson; Patrick McDonald

2008-01-27T23:59:59.000Z

465

Exact Solutions for Non-Hermitian Dirac-Pauli Equation in an intensive magnetic field  

E-Print Network [OSTI]

The modified Dirac-Pauli equations, which are introduced by means of ${\\gamma_5}$-mass factorization of the ordinary Klein-Gordon operator, are considered. We also take into account the interaction of fermions with the intensive homogenous magnetic field focusing attention to their (g-2) gyromagnetic factor. The basis of this approach is developing of methods for study of the structure of regions of unbroken $\\cal PT$ symmetry of Non-Hermitian Hamiltonians which be no studied earlier. For that, without the use of perturbation theory in the external field the exact energy spectra are deduced with regard to spin effects of fermions. We also investigate the unique possible of experimental observability the non-Hermitian restrictions in the spectrum of mass consistent with the conjecture Markov about Maximal Mass. This, in principal will may allow to find out the existence of an upper limit value in spectrum masses of elementary particles and confirm or deny the significance of the Planck mass.

Vasily N. Rodionov

2014-06-02T23:59:59.000Z

466

Carbon pay back period for solar and wind energy project installed in India: A critical review  

Science Journals Connector (OSTI)

All renewable energy systems make some contribution to climate change. This is due to fuel combusted for their construction and as back up energy during their operation. Accurate calculation of greenhouse gas emission per kilowatt hour of electricity is difficult but is an important part of policy making and planning. This study, an attempt has been made to analyze and review the development and potential of wind and solar energy in India. LCA has been carried out for the on shore wind turbine and poly crystalline PV module. Based on the past studies, life cycle inventory data has been collected for the investigation. Using that data, the detailed investigation has been made for the existing grid connected 1.65 MW wind turbine project in and around Udumalpet, Tamil Nadu and 25 kW Roof top solar PV Power plant at Sewa Bhawan, New Delhi. Carbon intensity, energy pay back period and carbon pay back period for the above system have been calculated and compared with each other.

C. Marimuthu; V. Kirubakaran

2013-01-01T23:59:59.000Z

467

Nonlocal theory of accelerated observers  

Science Journals Connector (OSTI)

A nonlocal theory of accelerated observers is developed on the basis of the hypothesis that an electromagnetic wave can never stand completely still with respect to an observer. In the eikonal approximation, the nonlocal theory reduces to the standard extension of Lorentz invariance to accelerated observers. The validity of the nonlocal theory would exclude the possibility of existence of any basic scalar field in nature. The observational consequences of this theory are briefly discussed.

Bahram Mashhoon

1993-05-01T23:59:59.000Z

468

ARM AOS Processing Status and Aerosol Intensive Properties VAP  

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

Andrews, and P. J. Sheridan National Oceanic and Atmospheric Administration Boulder, Colorado Abstract The Atmospheric Radiation Measurement (ARM) Aerosol Observing System (AOS)...

469

Field observations and lessons learned  

SciTech Connect (OSTI)

This presentation outlines observations and lessons learned from the Megaports program. It provides: (1) details of field and technical observations collected during LANL field activities at ports around the world and details of observations collected during radiation detections system testing at Los Alamos National Laboratory; (2) provides suggestions for improvement and efficiency; and (3) discusses possible program execution changes for more effective operations.

Nielsen, Joh B [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

470

Spatial Corrections of ROSAT HRI Observations  

E-Print Network [OSTI]

X-ray observations with the ROSAT High Resolution Imager (HRI) often have spatial smearing on the order of 10 arcsec (Morse 1994). This degradation of the intrinsic resolution of the instrument (5 arcsec) can be attributed to errors in the aspect solution associated with the wobble of the space craft or with the reacquisition of the guide stars. We have developed a set of IRAF/PROS and MIDAS/EXSAS routines to minimize these effects. Our procedure attempts to isolate aspect errors that are repeated through each cycle of the wobble. The method assigns a 'wobble phase' to each event based on the 402 second period of the ROSAT wobble. The observation is grouped into a number of phase bins and a centroid is calculated for each sub-image. The corrected HRI event list is reconstructed by adding the sub-images which have been shifted to a common source position. This method has shown approx. 30% reduction of the full width half maximum (FWHM) of an X-ray observation of the radio galaxy 3C 120. Additional examples are presented.

D. E. Harris; J. D. Silverman; G. Hasinger; I. Lehmann

1998-11-08T23:59:59.000Z

471

Planar resonant periodic orbits in Kuiper belt dynamics  

E-Print Network [OSTI]

In the framework of the planar restricted three body problem we study a considerable number of resonances associated to the Kuiper Belt dynamics and located between 30 and 48 a.u. Our study is based on the computation of resonant periodic orbits and their stability. Stable periodic orbits are surrounded by regular librations in phase space and in such domains the capture of trans-Neptunian object is possible. All the periodic orbits found are symmetric and there is evidence for the existence of asymmetric ones only in few cases. In the present work first, second and third order resonances are under consideration. In the planar circular case we found that most of the periodic orbits are stable. The families of periodic orbits are temporarily interrupted by collisions but they continue up to relatively large values of the Jacobi constant and highly eccentric regular motion exists for all cases. In the elliptic problem and for a particular eccentricity value of the primary bodies the periodic orbits are isolated. The corresponding families, where they belong to, bifurcate from specific periodic orbits of the circular problem and seem to continue up to the rectilinear problem. Both stable and unstable orbits are obtained for each case. In the elliptic problem the unstable orbits found are associated with narrow chaotic domains in phase space. The evolution of the orbits, which are located in such chaotic domains, seems to be practically regular and bounded for long time intervals.

George Voyatzis; Thomas Kotoulas

2005-02-28T23:59:59.000Z

472

Injection and capture simulations for a high intensity proton synchrotron  

SciTech Connect (OSTI)

The injection and capture processes in a high intensity, rapid cycling, proton synchrotron are simulated by numerical integration. The equations of motion suitable for rapid numerical simulation are derived so as to maintain symplecticity and second-order accuracy. By careful bookkeeping, the authors can, for each particle that is lost, determine its initial phase space coordinates. They use this information as a guide for different injection schemes and rf voltage programming, so that a minimum of particle losses and dilution are attained. A fairly accurate estimate of the space charge fields is required, as they influence considerably the particle distribution and reduce the capture efficiency. Since the beam is represented by a relatively coarse ensemble of macro particles, the authors study several methods of reducing the statistical fluctuations while retaining the fine structure (high intensity modulations) of the beam distribution. A pre-smoothing of the data is accomplished by the cloud-in-cell method. The program is checked by making sure that it gives correct answers in the absence of space charge, and that it reproduces the negative mass instability properly. Results of simulations for stationary distributions are compared to their analytical predictions. The capture efficiency for the rapid-cycling synchrotron is analyzed with respect to variations in the injected beam energy spread, bunch length, and rf programming.

Cho, Y.; Lessner, E. [Argonne National Lab., IL (United States); Symon, K. [Argonne National Lab., IL (United States)]|[Univ. of Wisconsin, Madison, WI (United States). Dept. of Physics

1994-07-01T23:59:59.000Z

473

Turbulence intensity pulse propagation with self-consistent nonlinear noise  

SciTech Connect (OSTI)

A model of turbulence intensity spreading with self-consistent nonlinear noise is derived systematically for the simple dynamical model of resistivity gradient driven turbulence. Local effective drive, thermal conduction damping, nonlinear coupling, and spatial scattering effects are included. As a consequence of nonlinear mode coupling processes (i.e., triad mode interactions), turbulence energy can be spatially scattered, leading to turbulence propagation and spreading. However, the range of any nonlinear mode interactions of the background with a test mode is restricted to within a few mode scale widths from the test mode rational surface. The speed of a turbulent spreading front is calculated. This front speed is effectively constant on macroscopic scales. We show that the effect of self-consistent nonlinear noise on the intensity front speed is modest, as a consequence of the ordering {Delta}{sub c}

Wang, Z. H. [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China); Department of Physics and Center for Astrophysics and Space Sciences, University of California at San Diego, La Jolla, California 92093-0424 (United States); Diamond, P. H. [Department of Physics and Center for Astrophysics and Space Sciences, University of California at San Diego, La Jolla, California 92093-0424 (United States); WCI Center for Fusion Theory, National Fusion Research Institute, Gwahangno 113, Yuseong-gu, Daejeon 305-333 (Korea, Republic of); Guercan, Oe. D. [Laboratoire de Physique des Plasmas, Ecole Polytechnique-CNRS, 91128 Palaiseau Cedex (France); Garbet, X. [CEA, IRFM, F-13108 Saint Paul Lez Durance (France); Wang, X. G. [School of Physics, Peking University, Beijing 100871 (China)

2011-03-15T23:59:59.000Z

474

Predicted intensities for new Raman transitions in solid HD  

Science Journals Connector (OSTI)

The scattering efficiencies for the zero-phonon and phonon branches associated with predicted new Raman transitions in solid HD are calculated. These transitions arise from the interaction-induced polarizability of a pair of molecules expressed in terms of the vector separation between the centers of mass and satisfy different rotational selection rules from those of allowed Raman transitions. For single transitions in which only one molecule of the pair is excited by the incoming photon, one expects an R branch, while, for double transitions in which both molecules are excited, one expects R+S and T+S branches with progressively less intensity. A previously obtained experimental Raman spectrum of solid HD does have spectral features similar in shape and intensity to those predicted for the RR phonon branch, although this feature was tentatively assigned as a two-phonon Raman-active transition. We conclude that a new Raman study of solid HD carried out with higher sensitivity and over a greater frequency region would be of interest to determine the correct assignment of this feature and to look for other predicted transitions resulting from the interaction-induced polarizability.

M. Attia; M. Ali; R. H. Tipping; J. D. Poll

1989-11-01T23:59:59.000Z

475

Intense multimicrojoule high-order harmonics generated from neutral atoms of In{sub 2}O{sub 3} nanoparticles  

SciTech Connect (OSTI)

We studied high-order harmonic generation from plasma that contains an abundance of indium oxide nanoparticles. We found that harmonics from nanoparticle-containing plasma are considerably more intense than from plasma produced on the In{sub 2}O{sub 3} bulk target, with high-order harmonic energy ranging from 6 {mu}J (for the ninth harmonic) to 1 {mu}J (for the 17th harmonic) in the former case. The harmonic cutoff from nanoparticles was at the 21st order, which is lower than that observed using indium oxide solid target. By comparing the harmonic spectra obtained from solid and nanoparticle indium oxide targets, we concluded that intense harmonics in the latter case are dominantly generated from neutral atoms of the In{sub 2}O{sub 3} nanoparticles.

Elouga Bom, L. B.; Abdul-Hadi, J.; Vidal, F.; Ozaki, T. [Centre Energie, Materiaux et Telecommunications, Institut National de la Recherche Scientifique, 1650 Lionel-Boulet, Varennes, Quebec J3X 1S2 (Canada); Ganeev, R. A. [Centre Energie, Materiaux et Telecommunications, Institut National de la Recherche Scientifique, 1650 Lionel-Boulet, Varennes, Quebec J3X 1S2 (Canada); Scientific Association Akadempribor, Uzbekistan Academy of Sciences, Akademgorodok, Tashkent 100125 (Uzbekistan)

2009-03-16T23:59:59.000Z

476

Rotation of the trajectories of bright solitons and realignment of intensity distribution in the coupled nonlinear Schrödinger equation  

Science Journals Connector (OSTI)

We reconsider the collisional dynamics of bright solitons in the coupled nonlinear Schrödinger equation. We observe that apart from the intensity redistribution in the interaction of bright solitons, one also witnesses a rotation of the trajectories of bright solitons. The angle of rotation can be varied by suitably manipulating the self-phase-modulation (SPM) or cross-phase-modulation (XPM) parameters. The rotation of the trajectories of the bright solitons arises due to the excess energy that is injected into the dynamical system through SPM or XPM. This extra energy contributes not only to the rotation of the trajectories, but also to the realignment of intensity distribution between the two modes. We also notice that the angular separation between the bright solitons can also be maneuvered suitably. The above results, which exclude quantum superposition for the field vectors, may have wider ramifications in nonlinear optics, Bose-Einstein condensates, and left- and right-handed metamaterials.

R. Radha; P. S. Vinayagam; K. Porsezian

2013-09-03T23:59:59.000Z

477

Observation Wells | Open Energy Information  

Open Energy Info (EERE)

Observation Wells Observation Wells Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Observation Wells Details Activities (7) Areas (7) Regions (0) NEPA(15) Exploration Technique Information Exploration Group: Drilling Techniques Exploration Sub Group: Development Drilling Parent Exploration Technique: Development Drilling Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Total dissolved solids, fluid pressure, flow rates, and flow direction Thermal: Monitors temperature of circulating fluids Dictionary.png Observation Wells: An observation well is used to monitor important hydrologic parameters in a geothermal system that can indicate performance, longevity, and transient processes. Other definitions:Wikipedia Reegle

478

Observed Multi-Decade DD and DT Z-Pinch Fusion Rate Scaling in 5 Dense Plasma Focus Fusion Machines  

SciTech Connect (OSTI)

Dense Plasma Focus (DPF) machines are in use worldwide or a wide variety of applications; one of these is to produce intense, short bursts of fusion via r-Z pinch heating and compression of a working gas. We have designed and constructed a series of these, ranging from portable to a maximum energy storage capacity of 2 MJ. Fusion rates from 5 DPF pulsed fusion generators have been measured in a single laboratory using calibrated activation detectors. Measured rates range from ~ 1015 to more than 1019 fusions per second have been measured. Fusion rates from the intense short (20 – 50 ns) periods of production were inferred from measurement of neutron production using both calibrated activation detectors and scintillator-PMT neutron time of flight (NTOF) detectors. The NTOF detectors are arranged to measure neutrons versus time over flight paths of 30 Meters. Fusion rate scaling versus energy and current will be discussed. Data showing observed fusion cutoff at D-D fusion yield levels of approximately 1?1012, and corresponding tube currents of ~ 3 MA will be shown. Energy asymmetry of product neutrons will also be discussed. Data from the NTOF lines of sight have been used to measure energy asymmetries of the fusion neutrons. From this, center of mass energies for the D(d,n)3He reaction are inferred. A novel re-entrant chamber that allows extremely high single pulse neutron doses (> 109 neutrons/cm2 in 50 ns) to be supplied to samples will be described. Machine characteristics and detector types will be discussed.

Hagen, E. C. [National Security Technologies, LLC; Lowe, D. R. [National Security Technologies, LLC; O'Brien, R. [University of Nevada, Las Vegas; Meehan, B. T. [National Security Technologies, LLC

2013-06-18T23:59:59.000Z

479

The systemic velocities of four long-period cataclysmic variable stars  

E-Print Network [OSTI]

Although a large number of orbital periods of cataclysmic variable stars (CVs) have been measured, comparison of period and luminosity distributions with evolutionary theory is affected by strong selection effects. A test has been discovered which is independent of these selection effects and is based upon the kinematics of CVs (Kolb & Stehle, 1996). If the standard models of evolution are correct then long-period (P_orb > 5 hrs) CVs should be typically less than 1.5 Gyr old, and their line-of-sight velocity dispersion ($\\sigma_\\gamma$) should be small. We present results from a pilot study which indicate that this postulate is indeed true. Four long-period dwarf novae (EM Cyg, V426 Oph, SS Cyg and AH Her) were observed over a complete orbit, in order that accurate radial velocities be obtained. We find values of -1.7, 5.4, 15.4 and 1.8 km/s with uncertainties of order 3 km/s, referred to the dynamical Local Standard of Rest (LSR), leading to a dispersion of ~ 8 km/s. Calculation of a 95 per cent confidence interval gives the result 4 < \\sigma_\\gamma < 28 km/s compared to a prediction of 15 km/s. We also have an improved determination of mass donor spectral type, K_2 and q for the four systems.

R. C. North; T. R. Marsh; U. Kolb; V. S. Dhillon; C. K. J. Moran

2002-01-31T23:59:59.000Z

480

Ultrafast laser induced periodic sub-wavelength aluminum surface structures and nanoparticles in air and liquids  

SciTech Connect (OSTI)

In this communication, we demonstrate the generation of laser-induced periodic sub-wavelength surface structures (LIPSS) or ripples on a bulk aluminum (Al) and Al nanoparticles (NPs) by femtosecond (fs) laser direct writing technique. Laser irradiation was performed on Al surface at normal incidence in air and by immersing in ethanol (C{sub 2}H{sub 5}OH) and water (H{sub 2}O) using linearly polarized Ti:sapphire fs laser pulses of ?110 fs pulse duration and ?800?nm wavelength. Field emission scanning electron microscope is utilized for imaging surface morphology of laser written structures and it reveals that the spatial periodicity as well as the surface morphology of the LIPSS depends on the surrounding dielectric medium and also on the various laser irradiation parameters. The observed LIPSS have been classified as low spatial frequency LIPSS which are perpendicularly oriented to the laser polarization with a periodicity from 460 to 620?nm and high spatial frequency LIPSS which spectacles a periodicity less than 100?nm with the orientation parallel to the polarization of the incident laser beam. Fabricated colloidal solutions, which contain the Al NPs, were characterized by UV-Vis absorption spectroscopy and transmission electron microscopy (TEM). TEM results reveal the formation of internal cavities in Al NPs both in ethanol and water. Formation mechanism of LIPSS and cavities inside the nanoparticles are discussed in detail.

Kuladeep, Rajamudili; Dar, Mudasir H.; Rao, D. Narayana, E-mail: dnrsp@uohyd.ac.in, E-mail: dnr-laserlab@yahoo.com [School of Physics, University of Hyderabad, Hyderabad 500046 (India); Deepak, K. L. N. [Department of Physics and Center for Research in Photonics, University of Ottawa, 150 Louis Pasteur, Ottawa K1N6N5, Ontario (Canada)

2014-09-21T23:59:59.000Z

Note: This page contains sample records for the topic "intensive observation period" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
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481

Periodic Flux Variability of Stars due to the Reflex Doppler Effect Induced by Planetary Companions  

E-Print Network [OSTI]

Upcoming space-based photometric satellites offer the possibility of detecting continuum flux variability at the micro-magnitude level. We show that the Doppler flux variability induced by the reflex motion of stars due to planetary companions has an amplitude of (3-alpha)K/c, where K is the reflex radial velocity amplitude and alpha is the logarithmic slope of source spectral flux in the observed frequency band. For many of the known close-in planetary systems with periods less than ~0.2 years, the periodic Doppler variability is of order a micromagnitude, and is significant relative to the variability caused by reflected light from the planetary companion. For companions with periods greater than ~0.2 years, the Doppler signal is larger than the reflected light signal. We show that the future photometric satellites should reach the sensitivity to detect this Doppler variability. In particular, the Kepler satellite should have the photon-noise sensitivity to detect at a signal-to-noise ratio > 5, all planets with minimum mass greater than 5 Jupiter masses, and periods less than 0.1 years around the 10,000 main-sequence stars with spectral types A through K and apparent magnitude V<12 in its field-of-view.

Abraham Loeb; B. Scott Gaudi

2003-03-10T23:59:59.000Z

482

Observations  

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

of Multiple Magnetic Islands in the Core of a Reversed Field Pinch P. Franz, 1,2 L. Marrelli, 1,2 P. Piovesan, 1,2 B. E. Chapman, 3 P. Martin, 1,2 I. Predebon, 1,2 G. Spizzo, 1 R....

483

Observation  

Office of Scientific and Technical Information (OSTI)

structure of K x Fe 2-y Se 2 . (a) FS mapping with the 2-Fe BZ boundary marked in green. (b),(d) Spec- tral images and (c),(e) second derivative in energy along the -X...

484

Observation  

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

52.25.Fi, 52.70.La Energy loss in magnetically confined toroidal plasmas for thermonuclear fusion research is dominated by fluc- tuation driven transport 1. In the...

485

THE VELOCITY CENTROID PERIODICITY OF L2 PUPPIS' SiO MASER EMISSION  

SciTech Connect (OSTI)

We report the first short term velocity centroid (VC) periodicity derived from SiO maser emission. L2 Puppis, a semi-regular AGB star, was observed using the Mopra radio telescope of the Australia Telescope National Facility in the SiO v = 1, J = 1-0 and v = 1, J = 2-1 transitions. It exhibits a 139 day period in its SiO maser VC based on a period folding analysis and a Lomb Scargle analysis. L2 Pup's SiO maser emission has an unusually large velocity range and an unusual three-peaked spectrum. To create the change in VC the entire spectrum does not shift in velocity, but changes in the relative emission of the peaks generate the variation. The changes in the VC may be due to differential illumination, an asymmetric circumstellar distribution of material, or a mixture of causes. The unusual velocity structure, similar to that observed in Orion source 1, may be due to revolution of the circumstellar material or asymmetries in the circumstellar environment.

McIntosh, Gordon C. [Division of Science and Mathematics, University of Minnesota, Morris, Morris, MN 56267 (United States); Indermuehle, Balthasar [Australia Telescope National Facility, Locked Bag 194, Narrabri, NSW 2390 (Australia)

2013-09-01T23:59:59.000Z

486

Improved growth and water use efficiency of cherry saplings under reduced light intensity  

Science Journals Connector (OSTI)

Cherry (Prunus avium...L.) saplings were grown under natural sunlight (controls) or moderate shading (up to 30%, depending on the incident light intensity and the hour of the day). Reduced light intensity increas...

Mauro Centritto; Francesco Loreto; Angelo Massacci…

2000-12-01T23:59:59.000Z

487

J Med Ethics . Author manuscript Ethically complex decisions in the neonatal intensive care unit: impact of  

E-Print Network [OSTI]

J Med Ethics . Author manuscript Page /1 6 Ethically complex decisions in the neonatal intensive Personnel ; Decision Making ; ethics ; Euthanasia ; ethics ; legislation & jurisprudence ; psychology ; Female ; France ; Humans ; Infant, Newborn ; Intensive Care Units, Neonatal ; ethics ; legislation

Paris-Sud XI, Université de

488

Changes in MRI signal intensity during hypercapnic challenge under conscious and anesthetized conditions  

E-Print Network [OSTI]

Changes in MRI signal intensity during hypercapnic challenge under conscious and anesthetized were exposed to different concentrations of carbon dioxide (CO2) while conscious and anesthetized. Hypercapnia produced significantly greater increases in MRI signal intensity in fully conscious animals (6

Duong, Timothy Q.

489

Fact #554: January 19, 2009 Energy Intensity of Light Rail Transit...  

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

4: January 19, 2009 Energy Intensity of Light Rail Transit Systems Fact 554: January 19, 2009 Energy Intensity of Light Rail Transit Systems According to the 2007 National Transit...

490

DOE Media Advisory - DOE extends public comment period on Draft  

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

Media Advisory - DOE extends public comment period on Draft Media Advisory - DOE extends public comment period on Draft Environmental Assessment for Replacement Capability for Disposal of Remote-Handled Low-Level Radioactive Waste Generated at the U.S. Department of Energy's Idaho Site DOE Media Advisory - DOE extends public comment period on Draft Environmental Assessment for Replacement Capability for Disposal of Remote-Handled Low-Level Radioactive Waste Generated at the U.S. Department of Energy's Idaho Site October 13, 2011 - 12:00pm Addthis Media Contact Tim Jackson 208-526-8484 In response to requests from people interested in National Environmental Policy Act activities occurring at the U.S. Department of Energy's Idaho Operations Office, the department has extended the public comment period that began September 1 on the Draft Environmental Assessment for

491

Property:Building/EndPeriod | Open Energy Information  

Open Energy Info (EERE)

EndPeriod EndPeriod Jump to: navigation, search This is a property of type Date. End of the period (last day of the month) Pages using the property "Building/EndPeriod" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 1 December 2004 + Sweden Building 05K0002 + 1 December 2004 + Sweden Building 05K0003 + 1 December 2004 + Sweden Building 05K0004 + 1 December 2004 + Sweden Building 05K0005 + 1 September 2005 + Sweden Building 05K0006 + 1 September 2005 + Sweden Building 05K0007 + 1 September 2005 + Sweden Building 05K0008 + 1 September 2005 + Sweden Building 05K0009 + 1 September 2005 + Sweden Building 05K0010 + 1 September 2005 + Sweden Building 05K0011 + 1 September 2005 + Sweden Building 05K0012 + 1 December 2004 +

492

Extension of Comment Period on the Draft Integrated, Interagency  

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

Extension of Comment Period on the Draft Integrated, Interagency Extension of Comment Period on the Draft Integrated, Interagency Pre-Application (IIP) Process for Electric Transmission Projects Requiring Federal Authorizations Extension of Comment Period on the Draft Integrated, Interagency Pre-Application (IIP) Process for Electric Transmission Projects Requiring Federal Authorizations September 25, 2013 - 4:24pm Addthis On August 29, 2013, the U.S. Department of Energy (DOE) published a Request for Information seeking information on a draft Integrated, Interagency Pre-Application (IIP) Process for significant onshore electric transmission projects requiring Federal authorizations. An announcement extending the public comment period for submitting comments regarding the IIP Process was published in the Federal Register on

493

Application Periods Open for 2014 National Clean Energy Business Plan  

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

Application Periods Open for 2014 National Clean Energy Business Application Periods Open for 2014 National Clean Energy Business Plan Competition's Regional Contests Application Periods Open for 2014 National Clean Energy Business Plan Competition's Regional Contests November 14, 2013 - 5:05pm Addthis The Energy Department today announced the opening of the application periods for six regional competitions that are part of the 2014 U.S. Department of Energy National Clean Energy Business Plan Competition. The competition aims to inspires university teams and promote entrepreneurship in clean energy technologies that will boost American competitiveness, bring cutting-edge clean energy solutions to the market, and strengthen our economic prosperity. The National Clean Energy Business Plan Competition challenges university

494

Property:Building/StartPeriod | Open Energy Information  

Open Energy Info (EERE)

StartPeriod StartPeriod Jump to: navigation, search This is a property of type Date. Start of the period (first day o the month) Pages using the property "Building/StartPeriod" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 1 January 2004 + Sweden Building 05K0002 + 1 January 2004 + Sweden Building 05K0003 + 1 January 2004 + Sweden Building 05K0004 + 1 January 2004 + Sweden Building 05K0005 + 1 October 2004 + Sweden Building 05K0006 + 1 October 2004 + Sweden Building 05K0007 + 1 October 2004 + Sweden Building 05K0008 + 1 October 2004 + Sweden Building 05K0009 + 1 October 2004 + Sweden Building 05K0010 + 1 October 2004 + Sweden Building 05K0011 + 1 October 2004 + Sweden Building 05K0012 + 1 January 2004 + Sweden Building 05K0013 + 1 October 2004 +

495

Total Estimated Contract Cost: Performance Period Total Fee Paid  

Energy Savers [EERE]

Wastren-EnergX Mission Support LLC Contract Number: DE-CI0000004 Contract Type: Cost Plus Award Fee 128,879,762 Contract Period: December 2009 - July 2015 Fee Information...

496

Total Estimated Contract Cost: Performance Period Total Fee Paid  

Office of Environmental Management (EM)

Period: Fee Information Maximum Fee Contract Type: Minimum Fee 91,085,394 74,386,573 Target Fee September 2002 - March 2017 Cost Plus Fixed FeeIncentive Fee 1,192,114,896...

497

Total Estimated Contract Cost: Performance Period Total Fee Paid  

Energy Savers [EERE]

Cumulative Fee Paid 22,200,285 Wackenhut Services, Inc. DE-AC30-10CC60025 Contractor: Cost Plus Award Fee 989,000,000 Contract Period: Contract Type: January 2010 - December...

498

Total Estimated Contract Cost: Performance Period Total Fee Paid  

Office of Environmental Management (EM)

Number: Contract Type: Contract Period: 0 Minimum Fee Maximum Fee Washington River Protection Solutions LLC DE-AC27-08RV14800 Cost Plus Award Fee 5,553,789,617 Fee Information...

499

Total Estimated Contract Cost: Performance Period Total Fee Paid  

Office of Environmental Management (EM)

2011 - September 2015 June 2014 Contractor: Contract Number: Contract Type: Idaho Treatment Group LLC DE-EM0001467 Cost Plus Award Fee Fee Information 419,202,975 Contract Period:...

500

Total Estimated Contract Cost: Performance Period Total Fee Paid  

Office of Environmental Management (EM)

FY2010 FY2011 FY2012 Fee Information Minimum Fee Maximum Fee June 2014 Contract Number: Cost Plus Incentive Fee Contractor: 3,245,814,927 Contract Period: EM Contractor Fee Site:...