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Note: This page contains sample records for the topic "lowest observed adverse" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
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1

Lowest-rank Solutions of Continuous and Discrete Lyapunov ...  

E-Print Network [OSTI]

Fortunately,. Mesbahi and Papavassilopoulos [On the rank minimization prob- ... with the semidefinite cone constraint, the lowest-rank solutions of the discrete ...

2012-10-08T23:59:59.000Z

2

Lowest-order brueckner theory with nonstandard dispersion  

Science Journals Connector (OSTI)

Lowest-order Brueckner energies of nuclear matter for thev 1 andv 2 versions of the Reid soft-core interaction, Baker-Hind-Kahane and Hamada-Johnstonv 6...potential...

M. Harada

1980-11-21T23:59:59.000Z

3

Lowest Pressure Steam Saves More BTU's Than You Think  

E-Print Network [OSTI]

ABSTRACT Steam is the most transferring heat from But most steam systems LOWEST PRESSURE STEAM SAVES MORE BTU'S THAN YOU THINK Stafford J. Vallery Armstrong Machine Works Three Rivers, Michigan steam to do the process heating rather than...

Vallery, S. J.

4

Strength via adversity?  

Science Journals Connector (OSTI)

... In Congress and elsewhere, those who have been trying for decades to persuade tokamaks to burn deuterium and tritium had been complaining about Hunter's activities: he diverted funds from ... one budget category to another without consulting the appropriate Congressional committees. He further irked Robert Roe, the chairman of the House Committee on Science, Science and Technology, by observing ...

1989-11-16T23:59:59.000Z

5

Lowest Engine-Out Emissions as the Key to the Future of the Heavy...  

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

Lowest Engine-Out Emissions as the Key to the Future of the Heavy-Duty Diesel Engine: New Development Rersults Lowest Engine-Out Emissions as the Key to the Future of the...

6

U.S. diesel fuel price falls to lowest level since July 2012  

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

diesel fuel price falls to lowest level since July 2012 The U.S. average retail price for on-highway diesel fuel fell to its lowest point since July 2012 at 3.80 a gallon on...

7

On the nature of the lowest $1/2^-$ baryon nonet and decuplet  

E-Print Network [OSTI]

From recent study of properties of the lowest spin-parity $1/2^-$ baryons, $N^*(1535)$ and $\\Delta^*(1620)$, new pictures for the internal structure of the lowest $1/2^-$ baryon octet and decuplet are proposed. While the lowest $1/2^-$ baryon octet may have large diquark-diquark-antiquark component, the lowest $1/2^-$ baryon decuplet is proposed to have large vector-meson-baryon components. Evidence for the "missing" members of the new pictures is pointed out and suggestions are made for detecting these predicted states from forthcoming experiments.

B. S. Zou

2007-11-30T23:59:59.000Z

8

U.S. diesel fuel prices falls to lowest level since mid-July...  

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

6, 2014 U.S. diesel fuel prices falls to lowest level since mid-July 2012 The U.S. average retail price for on-highway diesel fuel fell to its lowest level since mid-July 2012 at...

9

Anvisa, Brazil's regulatory body, has announced the lowest drug price increases  

Science Journals Connector (OSTI)

Anvisa, Brazil's regulatory body, has announced the lowest...Scrip. Cmed has created three increment bands of 1%, 2.01% and 3.02%. There are 20 000 medicines registered with Anvisa and, of these, 66% will be affe...

2007-05-01T23:59:59.000Z

10

Matching of lowest fare seat availability in airline revenue management systems  

E-Print Network [OSTI]

By enabling passengers to compare easily and book directly from airline inventories, Internetbased ticket distribution has forced airlines to compete for the lowest price level and more importantly, to ensure seat availability ...

Lua, Wenyi Fabian

2007-01-01T23:59:59.000Z

11

Sun Sentinel Florida has lowest rate of workers saving in an employer  

E-Print Network [OSTI]

Sun Sentinel Florida has lowest rate of workers saving in an employer retirement plan January 08, 2012|By Donna Gehrke-White, Sun Sentinel Florida is at the bottom when it comes to workers

Belogay, Eugene A.

12

U.S. gasoline prices continues to decrease at lowest level since...  

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

5, 2015 U.S. gasoline prices continues to decrease at lowest level since May 2009; 2 states with sub 2 prices (short version) The U.S. average retail price for regular gasoline...

13

Introduction Risk associated with an adverse price  

E-Print Network [OSTI]

Introduction Risk associated with an adverse price change (price risk) is a normal part commodities are sold suggests price risk is an unavoidable part of being involved in the industry. Producers that have significant price variability. Recent domestic farm policy changes and trade barrier reductions

O'Laughlin, Jay

14

E-Print Network 3.0 - approval adverse event Sample Search Results  

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

DEFINITIONS & REGULATIONS Serious Adverse Event are any adverse experience... anomalybirth defect. Adverse events encompass both physical and psychological harms. Important...

15

Average summer electric power bills expected to be lowest in four years  

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

summer electric power bills expected to be lowest in summer electric power bills expected to be lowest in four years The average U.S. household is expected to pay $395 for electricity this summer. That's down 2.5% from last year and the lowest residential summer power bill in four years, according to the new forecast from the U.S. Energy Information Administration. Lower electricity use to meet cooling demand this summer because of forecasted milder temperatures compared with last summer is expected to more than offset higher electricity prices. The result is lower power bills for most U.S. households during the June, July, and August period. However electricity use and prices vary by region. EIA expects residential power bills will be lower in all areas of the country... except for the West South Central region, which includes

16

U.S. diesel fuel price falls to lowest level since February 2011  

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

3, 2014 U.S. diesel fuel price falls to lowest level since February 2011 The U.S. average retail price for on-highway diesel fuel fell to 3.62 a gallon on Monday. That's down 1.2...

17

Atmospheric Boundary SUMMARY: This chapter considers the physics of the lowest portion of the  

E-Print Network [OSTI]

, water the crops and pro- vide a freshwater supply to us on land. Second, turbulent mixing generates and reaches the surface. Land surface, by contrast, is #12;12.1. LOWER ATMOSPHERE 167 opaque, while waterChapter 12 Atmospheric Boundary Layer SUMMARY: This chapter considers the physics of the lowest

Cushman-Roisin, Benoit

18

U.S. diesel fuel prices falls to lowest level since mid-July...  

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

4, 2014 U.S. diesel fuel prices falls to lowest level since mid-July 2012 The U.S. average retail price for on-highway diesel fuel fell to 3.70 a gallon on Monday. That's down 3...

19

Federal Government’s Energy Consumption Lowest in Almost 40 Years  

Office of Energy Efficiency and Renewable Energy (EERE)

While the U.S. federal government continues to be one of the largest energy consumers in the world, its consumption has been steadily declining for nearly four decades, and now stands at less than 1 quadrillion British thermal units, the lowest since 1975, when data collection began. Find out how our Federal Energy Management Program helped agencies achieve this milestone.

20

Adverse Events Associated with Testosterone Administration  

Science Journals Connector (OSTI)

...criteria were uncontrolled hypertension, unstable angina, myocardial infarction within 3 months before enrollment, New York Heart Association class III or class IV congestive heart failure, prostate or other active cancer, severe lower urinary tract symptoms, untreated severe obstructive sleep apnea,... In a randomized trial, men 65 years of age or older who had low serum testosterone levels and limitations in mobility were assigned to either placebo or testosterone gel to be applied daily for 6 months. The primary end point was improvement in leg-press strength, which was greater with testosterone therapy than with placebo. However, the trial was stopped early because of a greater number of cardiac adverse events in the testosterone group.

Basaria S.; Coviello A.D.; Travison T.G.

2010-07-08T23:59:59.000Z

Note: This page contains sample records for the topic "lowest observed adverse" 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

Overcoming development adversity: how entrepreneurs led software development in India  

Science Journals Connector (OSTI)

In many developing countries, firms confront a highly adverse business environment. In these cases, development 'should not' occur and observers tend to recommend government policy reform. The World Bank ranks India 116th out of 155 countries according to the ease of 'doing business'. Indian managers spend a great deal of their time dealing with government regulations and bureaucracy. However, despite these difficulties there has been an explosion of technology-based entrepreneurship in India's software and IT industries. In theory, the Indian software industry 'should not' have developed in the way it did. This paper shows how Indian software entrepreneurs overcame institutional barriers to development and how they themselves initiated institutional change, despite Government's restrictive policies. Contrary to conventional wisdom, Indian software firms were able to circumvent government imposed restrictions to growth and lead institutional reform in India. If India's entrepreneurs can do it perhaps others can too.

Suma Athreye; Mike Hobday

2010-01-01T23:59:59.000Z

22

Improved calculations of the lowest vibrational transitions in HeH{sup +}  

SciTech Connect (OSTI)

More accurate variational calculations of the lowest three pure vibrational states (v=0,1,2) of the {sup 4}HeH{sup +} molecular ion have been carried out without assuming the Born-Oppenheimer approximation. In the calculations we included the complete set of {alpha}{sup 2} relativistic corrections, i.e., mass-velocity, Darwin, spin-spin, and orbit-orbit. This allowed us to improve the agreement between the theory and the experiment for the vibrational frequencies of the 1{yields}0 and 2{yields}1 transitions as compared to our previous calculations [Stanke et al., Phys. Rev. Lett. 96, 233002 (2006)].

Bubin, Sergiy [Department of Chemistry, University of Arizona, Tucson, Arizona 85721 (United States); Stanke, Monika [Department of Chemistry, University of Arizona, Tucson, Arizona 85721 (United States); Institute of Physics, Nicholas Copernicus University, ulica Grudziadzka 5, PL 87-100 Torun (Poland); Kedziera, Dariusz [Department of Chemistry, Nicholas Copernicus University, ulica Gagarina 7, PL 87-100 Torun (Poland); Adamowicz, Ludwik [Department of Chemistry, University of Arizona, Tucson, Arizona 85721 (United States); Department of Physics, University of Arizona, Tucson, Arizona 85721 (United States)

2007-08-15T23:59:59.000Z

23

Lowest-order relativistic corrections to the fundamental limits of nonlinear-optical coefficients  

E-Print Network [OSTI]

The effects of small relativistic corrections to the off-resonant polarizability, hyperpolarizability, and second hyperpolarizability are investigated. Corrections to linear and nonlinear optical coefficients are demonstrated in the three-level ansatz, which includes corrections to the Kuzyk limits when scaled to semi-relativistic energies. It is also shown that the maximum value of the hyperpolarizability is more sensitive than the maximum polarizability or second hyperpolarizability to lowest-order relativistic corrections. These corrections illustrate how the intrinsic nonlinear-optical response is affected at semi-relativistic energies.

Nathan J. Dawson

2014-12-16T23:59:59.000Z

24

Spectroscopic prescription for optimal stimulated Raman transfer of ultracold heteronuclear molecules to the lowest rovibronic level  

Science Journals Connector (OSTI)

We show that the multiplicative product of a molecular-beam excitation spectrum and an ultracold-molecule excitation spectrum, with a frequency offset appropriate to the initial ultracold-molecule level, provides the relative rate of stimulated Raman transfer (SRT) from a given high rovibrational level to the lowest rovibronic level, i.e., the v??=0,J??=0 level of the ground electronic state for photoassociated (and magnetoassociated) ultracold molecules. This product spectrum clearly indicates the optimal pathways for SRT, even when the two component spectra are completely unassigned. We illustrate this specifically for the case of KRb.

Jin-Tae Kim; Yonghoon Lee; Bongsoo Kim; Dajun Wang; William C. Stwalley; Phillip L. Gould; Edward E. Eyler

2011-12-21T23:59:59.000Z

25

Vacuum birefringence in strong magnetic fields: (II) Complex refractive index from the lowest Landau level  

SciTech Connect (OSTI)

We compute the refractive indices of a photon propagating in strong magnetic fields on the basis of the analytic representation of the vacuum polarization tensor obtained in our previous paper. When the external magnetic field is strong enough for the fermion one-loop diagram of the polarization tensor to be approximated by the lowest Landau level, the propagating mode in parallel to the magnetic field is subject to modification: The refractive index deviates from unity and can be very large, and when the photon energy is large enough, the refractive index acquires an imaginary part indicating decay of a photon into a fermion–antifermion pair. We study dependences of the refractive index on the propagating angle and the magnetic-field strength. It is also emphasized that a self-consistent treatment of the equation which defines the refractive index is indispensable for accurate description of the refractive index. This self-consistent treatment physically corresponds to consistently including the effects of back reactions of the distorted Dirac sea in response to the incident photon. -- Highlights: •Vacuum birefringence and photon decay are described by the complex refractive index. •Resummed photon vacuum polarization tensor in the lowest Landau level is used. •Back reactions from the distorted Dirac sea are self-consistently taken into account. •Self-consistent treatment drastically changes structure in photon energy dependence. •Dependences on photon propagation angle and magnetic-field strength are presented.

Hattori, Koichi, E-mail: khattori@yonsei.ac.kr [Institute of Physics and Applied Physics, Yonsei University, Seoul 120-749 (Korea, Republic of)] [Institute of Physics and Applied Physics, Yonsei University, Seoul 120-749 (Korea, Republic of); Itakura, Kazunori, E-mail: kazunori.itakura@kek.jp [Theory Center, IPNS, High energy accelerator research organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801 (Japan) [Theory Center, IPNS, High energy accelerator research organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801 (Japan); Department of Particle and Nuclear Studies, Graduate University for Advanced Studies (SOKENDAI), 1-1 Oho, Tsukuba, Ibaraki 305-0801 (Japan)

2013-07-15T23:59:59.000Z

26

Energy Department Announces Secretarial Determination of No Adverse...  

Office of Environmental Management (EM)

sales or transfers of uranium will not have an adverse material impact on the domestic uranium mining, conversion, or enrichment industries. Find a copy of the Secretarial...

27

Lowest order constrained variational calculation for asymmetrical nuclear matter with the new Argonne potential  

Science Journals Connector (OSTI)

The lowest order constrained variational method is used to calculate the properties of asymmetrical nuclear matter with the new charge-independent breaking, Argonne V18 (AV18), as well as Argonne V14 (AV14) potentials, for a wide range of density and proton to neutron ratio. The new AV18 potential, unlike AV14 and ?-Reid interactions, overbinds nuclear matter at a saturation density of about 0.31 fm-3 which agrees well with the variational method based on hypernetted chain summation techniques. It is shown that it is not a good approximation to use the result of nuclear and neutron matter to get the equation of state of asymmetrical nuclear matter with an empirical parabolic approximation. Finally, various properties of asymmetrical nuclear matter such as incompressibility, symmetry energy, etc., are given and a comparison is made with the other many-body techniques.

G. H. Bordbar and M. Modarres

1998-02-01T23:59:59.000Z

28

Non-Born-Oppenheimer calculations of the lowest vibrational energy of HD including relativistic corrections  

Science Journals Connector (OSTI)

In this work we report variational calculations of the two lowest vibrational states of the HD molecule within the framework that does not assume the Born-Oppenheimer (BO) approximation. The nonrelativistic energies of the states were corrected for the relativistic effects of the order of ?2 (where ?=1c), calculated as expectation values of the operators representing these effects with the nonrelativistic non-BO wave functions. The non-BO wave functions were expanded in terms of the one-center explicitly correlated Gaussian functions multiplied by even powers of the internuclear distance. The v=0?1 transition energy obtained in the calculations is compared with the previous calculations, as well as with the transition frequency obtained from the experimental spectra. The comparison shows the need to include corrections higher than second order in ? to further improve the agreement between the theory and the experiment.

Monika Stanke; Sergiy Bubin; Marcin Molski; Ludwik Adamowicz

2009-03-16T23:59:59.000Z

29

Towards a direct transition energy measurement of the lowest nuclear excitation in 229Th  

E-Print Network [OSTI]

The isomeric first excited state of the isotope 229Th exhibits the lowest nuclear excitation energy in the whole landscape of known atomic nuclei. For a long time this energy was reported in the literature as 3.5(5) eV, however, a new experiment corrected this energy to 7.6(5) eV, corresponding to a UV transition wavelength of 163(11) nm. The expected isomeric lifetime is $\\tau=$ 3-5 hours, leading to an extremely sharp relative linewidth of Delta E/E ~ 10^-20, 5-6 orders of magnitude smaller than typical atomic relative linewidths. For an adequately chosen electronic state the frequency of the nuclear ground-state transition will be independent from influences of external fields in the framework of the linear Zeeman and quadratic Stark effect, rendering 229mTh a candidate for a reference of an optical clock with very high accuracy. Moreover, in the literature speculations about a potentially enhanced sensitivity of the ground-state transition of $^{229m}$Th for eventual time-dependent variations of fundamental constants (e.g. fine structure constant alpha) can be found. We report on our experimental activities that aim at a direct identification of the UV fluorescence of the ground-state transition energy of 229mTh. A further goal is to improve the accuracy of the ground-state transition energy as a prerequisite for a laser-based optical control of this nuclear excited state, allowing to build a bridge between atomic and nuclear physics and open new perspectives for metrological as well as fundamental studies.

L. v. d. Wense; P. G. Thirolf; D. Kalb; M. Laatiaoui

2012-11-04T23:59:59.000Z

30

Secretary Chu Announces Determination of No Adverse Material Impact for  

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

Determination of No Adverse Material Impact Determination of No Adverse Material Impact for Uranium Transfer to Fund Portsmouth Cleanup Secretary Chu Announces Determination of No Adverse Material Impact for Uranium Transfer to Fund Portsmouth Cleanup March 2, 2012 - 4:30pm Addthis WASHINGTON, D.C. - Secretary of Energy Steven Chu announced today that the Department of Energy has issued a determination and market impact analysis authorizing uranium transfers to fund accelerated cleanup activities at the Portsmouth Site in Piketon, Ohio, through the third quarter of calendar year 2013. The Determination finds that the proposed transfer of uranium will not have an adverse material impact on the domestic uranium industries. The determination authorizes the Department to conduct transfers on a quarterly basis, with no more than 450 metric tons (MTU) of natural uranium

31

Secretary Chu Announces Determination of No Adverse Material Impact for  

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

Determination of No Adverse Material Impact Determination of No Adverse Material Impact for Uranium Transfer to Fund Portsmouth Cleanup Secretary Chu Announces Determination of No Adverse Material Impact for Uranium Transfer to Fund Portsmouth Cleanup November 12, 2009 - 12:00am Addthis WASHINGTON, D.C. - Secretary Chu announced today that the Department of Energy has issued a final determination and market impact study for the proposed uranium transfer to fund accelerated cleanup activities at the Portsmouth Site in Piketon, Ohio, which will create between 800 to 1,000 new jobs for the community. The market review and determination confirms that the proposed transfer of uranium will not have an adverse material impact on the domestic uranium industries. Under the determination, DOE's Office of Environmental Management will be

32

Secretary Chu Announces Determination of No Adverse Material Impact for  

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

Secretary Chu Announces Determination of No Adverse Material Impact Secretary Chu Announces Determination of No Adverse Material Impact for Uranium Transfer to Fund Portsmouth Cleanup Secretary Chu Announces Determination of No Adverse Material Impact for Uranium Transfer to Fund Portsmouth Cleanup November 12, 2009 - 12:00am Addthis WASHINGTON, D.C. - Secretary Chu announced today that the Department of Energy has issued a final determination and market impact study for the proposed uranium transfer to fund accelerated cleanup activities at the Portsmouth Site in Piketon, Ohio, which will create between 800 to 1,000 new jobs for the community. The market review and determination confirms that the proposed transfer of uranium will not have an adverse material impact on the domestic uranium industries. Under the determination, DOE's Office of Environmental Management will be

33

Secretary Chu Announces Determination of No Adverse Material Impact for  

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

Determination of No Adverse Material Impact Determination of No Adverse Material Impact for Uranium Transfer to Fund Portsmouth Cleanup Secretary Chu Announces Determination of No Adverse Material Impact for Uranium Transfer to Fund Portsmouth Cleanup March 2, 2011 - 12:00am Addthis WASHINGTON, D.C. - Secretary of Energy Steven Chu announced today that the Department of Energy has issued a determination and market impact analysis authorizing uranium transfers to fund accelerated cleanup activities at the Portsmouth Site in Piketon, Ohio, through the third quarter of calendar year 2013. The Determination finds that the proposed transfer of uranium will not have an adverse material impact on the domestic uranium industries. The determination authorizes the Department to conduct transfers on a quarterly basis, with no more than 450 metric tons (MTU) of natural uranium

34

E-Print Network 3.0 - adverse hospital outcomes Sample Search...  

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

hospital outcomes Search Powered by Explorit Topic List Advanced Search Sample search results for: adverse hospital outcomes Page: << < 1 2 3 4 5 > >> 1 Adverse Event (AE)...

35

E-Print Network 3.0 - adverse birth outcomes Sample Search Results  

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

Perspectives Children's Health | Article Summary: adverse effects of exposure to air pollution during pregnancy on birth weight and other pregnancy outcomes... adverse birth...

36

Criminal Squatting and Adverse Possession: The Best Solution?  

E-Print Network [OSTI]

, unless the claimant had met all of the conditions for success (including completion of a full 12 years adverse possession under the Limitation Act 1980) prior to the entry into force of the 2002 Act. However, Best never made it as far as triggering...

Dixon, Martin

2014-01-01T23:59:59.000Z

37

ICE AND DUST IN THE PRESTELLAR DARK CLOUD LYNDS 183: PREPLANETARY MATTER AT THE LOWEST TEMPERATURES  

SciTech Connect (OSTI)

Dust grains are nucleation centers and catalysts for the growth of icy mantles in quiescent interstellar clouds, the products of which may accumulate into preplanetary matter when new stars and solar systems form within the clouds. In this paper, we present the first spectroscopic detections of silicate dust and the molecular ices H{sub 2}O, CO, and CO{sub 2} in the vicinity of the prestellar core L183 (L134N). An infrared photometric survey of the cloud was used to identify reddened background stars, and we present spectra covering solid-state absorption features in the wavelength range 2-20 {mu}m for nine of them. The mean composition of the ices in the best-studied line of sight (toward J15542044-0254073) is H{sub 2}O:CO:CO{sub 2} Almost-Equal-To 100:40:24. The ices are amorphous in structure, indicating that they have been maintained at low temperature ({approx}< 15 K) since formation. The ice column density N(H{sub 2}O) correlates with reddening by dust, exhibiting a threshold effect that corresponds to the transition from unmantled grains in the outer layers of the cloud to ice-mantled grains within, analogous to that observed in other dark clouds. A comparison of results for L183 and the Taurus and IC 5146 dark clouds suggests common behavior, with mantles first appearing in each case at a dust column corresponding to a peak optical depth {tau}{sub 9.7} = 0.15 {+-} 0.03 in the silicate feature. Our results support a previous conclusion that the color excess E{sub J-K} does not obey a simple linear correlation with the total dust column in lines of sight that intercept dense clouds. The most likely explanation is a systematic change in the optical properties of the dust as the density increases.

Whittet, D. C. B.; Poteet, C. A.; Bajaj, V. M.; Horne, D. [Department of Physics, Applied Physics and Astronomy and New York Center for Astrobiology, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, NY 12180 (United States); Chiar, J. E. [SETI Institute, Carl Sagan Center, 189 Bernardo Avenue, Mountain View, CA 94043 (United States); Pagani, L. [LERMA, UMR 8112 du CNRS, Observatoire de Paris, 61 Av. de l'Observatoire, F-75014 Paris (France); Shenoy, S. S. [SOFIA Science Center, NASA Ames Research Center, MS 232-12, Moffett Field, CA 94035 (United States); Adamson, A. J. [Gemini Observatory, Southern Operations Center, Casilla 603, La Serena (Chile)

2013-09-10T23:59:59.000Z

38

Lowest vibrational states of {sup 4}He{sup 3}He{sup +}: Non-Born-Oppenheimer calculations  

SciTech Connect (OSTI)

Very accurate quantum mechanical calculations of the first five vibrational states of the {sup 4}He{sup 3}He{sup +} molecular ion are reported. The calculations have been performed explicitly including the coupling of the electronic and nuclear motions [i.e., without assuming the Born-Oppenheimer (BO) approximation]. The nonrelativistic non-BO wave functions were used to calculate the {alpha}{sup 2} relativistic mass velocity, Darwin, and spin-spin interaction corrections. For the lowest vibrational transition, whose experimental energy is established with high precision, the calculated and the experimental results differ by only 0.16 cm{sup -1}.

Stanke, Monika; Bubin, Sergiy [Department of Chemistry, University of Arizona, Tucson, Arizona 85721 (United States); Kedziera, Dariusz [Department of Chemistry, Nicholaus Copernicus University, ul. Gagarina 7, PL 87-100 Torun (Poland); Molski, Marcin [Department of Theoretical Chemistry, Faculty of Chemistry, Adam Mickiewicz University, ul. Grunwaldzka 6, Poznan, PL 60-780 (Poland); Adamowicz, Ludwik [Department of Chemistry, University of Arizona, Tucson, Arizona 85721 (United States); Department of Physics, University of Arizona, Tucson, Arizona 85721 (United States)

2007-11-15T23:59:59.000Z

39

The effects of adverse environmental conditions on workload  

E-Print Network [OSTI]

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

Martin, Ann Elizabeth

2012-06-07T23:59:59.000Z

40

Human-centered systems analysis of aircraft separation from adverse weather  

E-Print Network [OSTI]

Adverse weather significantly impacts the safety and efficiency of flight operations. Weather information plays a key role in mitigating the impact of adverse weather on flight operations by supporting air transportation ...

Vigeant-Langlois, Laurence, 1974-

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lowest observed adverse" 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

Nonlinear optical spectra having characteristics of Fano interferences in coherently coupled lowest exciton biexciton states in semiconductor quantum dots  

SciTech Connect (OSTI)

Optical nonlinear effects are examined using a two-color micro-photoluminescence (micro-PL) method in a coherently coupled exciton-biexciton system in a single quantum dot (QD). PL and photoluminescence excitation spectroscopy (PLE) are employed to measure the absorption spectra of the exciton and biexciton states. PLE for Stokes and anti-Stokes PL enables us to clarify the nonlinear optical absorption properties in the lowest exciton and biexciton states. The nonlinear absorption spectra for excitons exhibit asymmetric shapes with peak and dip structures, and provide a distinct contrast to the symmetric dip structures of conventional nonlinear spectra. Theoretical analyses with a density matrix method indicate that the nonlinear spectra are caused not by a simple coherent interaction between the exciton and biexciton states but by coupling effects among exciton, biexciton and continuum states. These results indicate that Fano quantum interference effects appear in exciton-biexciton systems at QDs and offer important insights into their physics.

Gotoh, Hideki, E-mail: gotoh.hideki@lab.ntt.co.jp; Sanada, Haruki; Yamaguchi, Hiroshi; Sogawa, Tetsuomi [NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi-shi, Kanagawa 243-0198 (Japan)

2014-10-15T23:59:59.000Z

42

E-Print Network 3.0 - adverse clinical events Sample Search Results  

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

... Source: Carmichael, Owen - Computer Science Department, University of California, Davis Collection: Engineering 2 Created on 012907 Serious Adverse Events & Unanticipated...

43

E-Print Network 3.0 - additive adverse effects Sample Search...  

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

responding to... -Lincoln recognizes its responsibility for protecting the environment by controlling potential adverse impacts... . Planning UNL employees shall consider...

44

Secretary Chu Announces Determination of No Adverse Material Impact for  

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

November 12, 2009 - 1:17pm November 12, 2009 - 1:17pm Addthis Secretary Chu announced today that the Department of Energy has issued a final determination and market impact study for the proposed uranium transfer to fund accelerated cleanup activities at the Portsmouth Site in Piketon, Ohio, which will create between 800 to 1,000 new jobs for the community. The market review and determination confirms that the proposed transfer of uranium will not have an adverse material impact on the domestic uranium industries. Under the determination, DOE's Office of Environmental Management will be able to transfer as much as 300 metric tons of uranium per quarter in calendar years 2009 and 2010 for cleanup at the Portsmouth Gaseous Diffusion Plant, so long as the total transfer during that period does not

45

E-Print Network 3.0 - adverse reactions database Sample Search...  

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

with various applications... publications describing the use of rhBMP-2 in spinal fusion, adverse events of these types and frequency were... ) data summaries, follow-up...

46

E-Print Network 3.0 - adverse event management Sample Search...  

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

Environmental Sciences and Ecology 5 The University of New South Wales Animal Care and Ethics Committee REPORT FOR ADVERSE OR UNEXPECTED EVENTS Summary: to promptly notify the...

47

E-Print Network 3.0 - adverse events human Sample Search Results  

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

of Clinical Trials Terms Summary: Protection Programs AE Adverse Event APB Administrative Panel on Biosafety CCTO Cancer Clinical Trials Office... and Research RCO Research...

48

E-Print Network 3.0 - amodiaquine-associated adverse effects...  

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

Binomial Probabilities, with Application to Safety Studies for Drugs Summary: . In the pharmaceutical industry, such side effects are often called adverse events, and the...

49

E-Print Network 3.0 - adverse environmental effects Sample Search...  

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

> >> 1 bbsrc EPSRC WMyWNT E S R Cm mr*-** Summary: practice for environmental management; seek to minimise the adverse environmental impacts of new... be avoided; work...

50

E-Print Network 3.0 - adverse environmental health Sample Search...  

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

environmental health Search Powered by Explorit Topic List Advanced Search Sample search results for: adverse environmental health Page: << < 1 2 3 4 5 > >> 1 National...

51

E-Print Network 3.0 - adverse health effects Sample Search Results  

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

Powered by Explorit Topic List Advanced Search Sample search results for: adverse health effects Page: << < 1 2 3 4 5 > >> 1 Regulation of Animal Health Products FDACVM:...

52

E-Print Network 3.0 - adverse reactions induced Sample Search...  

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

redness, or swelling where the shot is given... . Hoarseness; sore, red or itchy eyes; cough, fever, aches. PNEUMONIA VACCINE ADVERSE REACTIONS: redness... or pain where the shot...

53

E-Print Network 3.0 - adversely affect development Sample Search...  

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

conditions. The U.S. alone is operating several hun- dred spacecraft today. Space weather can adversely... affect satellite operations, commu- nications, space-based and...

54

E-Print Network 3.0 - air pollution adversely Sample Search Results  

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

Search Powered by Explorit Topic List Advanced Search Sample search results for: air pollution adversely Page: << < 1 2 3 4 5 > >> 1 COLUMBIA UNIVERSITY Department of...

55

E-Print Network 3.0 - ambulatory anticoagulant adverse Sample...  

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

as drug-drug interactions, drug- disease interactions and adverse drug... of the Dutch health care system for ambulatory and institutionalised elderly. The Dutch nursing home......

56

E-Print Network 3.0 - adverse reaction post Sample Search Results  

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

containing amino acid master mix. This will not adversely affect the reaction. 18. Vortex the tube... be a precipitate visible in the tube containing amino acid master mix....

57

E-Print Network 3.0 - adverse reactions varied Sample Search...  

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

containing amino acid master mix. This will not adversely affect the reaction. 18. Vortex the tube... be a precipitate visible in the tube containing amino acid master mix....

58

E-Print Network 3.0 - adverse events bone Sample Search Results  

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

by Explorit Topic List Advanced Search Sample search results for: adverse events bone Page: << < 1 2 3 4 5 > >> 1 Mechanoregulated bone adaptation in osteoarthritis This...

59

E-Print Network 3.0 - adverse reaction reporting Sample Search...  

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

Explorit Topic List Advanced Search Sample search results for: adverse reaction reporting Page: << < 1 2 3 4 5 > >> 1 Improving pharmacovigilance and the role of the pharmacist...

60

E-Print Network 3.0 - adverse bisphosphonate event Sample Search...  

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

Topic List Advanced Search Sample search results for: adverse bisphosphonate event Page: << < 1 2 3 4 5 > >> 1 151Summary | Musculoskeletal disease is a collection of...

Note: This page contains sample records for the topic "lowest observed adverse" 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

Fusion Rules of the Lowest Weight Representations of osp_q(1|2) at Roots of Unity: Polynomial Realization and Degeneration at Roots of Unity  

E-Print Network [OSTI]

The degeneracy of the lowest weight representations of the quantum superalgebra $osp_q(1|2)$ and their tensor products at exceptional values of %when deformation parameter $q$ takes exceptional values is studied. The main features of the structures of the finite dimensional lowest weight representations and their fusion rules are illustrated using realization of group generators as finite-difference operators acting in the space of the polynomials. The complete fusion rules for the decompositions of the tensor products at roots of unity are presented. The appearance of indecomposable representations in the fusions is described using Clebsh-Gordan coefficients derived for general values of $q$ and at roots of unity.

D. Karakhanyan; Sh. Khachatryan

2006-02-08T23:59:59.000Z

62

The lowest-mass stellar black holes: catastrophic death of neutron stars in gamma-ray bursts  

E-Print Network [OSTI]

Mergers of double neutron stars are considered the most likely progenitors for short gamma-ray bursts. Indeed such a merger can produce a black hole with a transient accreting torus of nuclear matter (Lee & Ramirez-Ruiz 2007, Oechslin & Janka 2006), and the conversion of a fraction of the torus mass-energy to radiation can power a gamma-ray burst (Nakar 2006). Using available binary pulsar observations supported by our extensive evolutionary calculations of double neutron star formation, we demonstrate that the fraction of mergers that can form a black hole -- torus system depends very sensitively on the (largely unknown) maximum neutron star mass. We show that the available observations and models put a very stringent constraint on this maximum mass under the assumption that a black hole formation is required to produce a short gamma-ray burst in a double neutron star merger. Specifically, we find that the maximum neutron star mass must be within 2 - 2.5 Msun. Moreover, a single unambiguous measurement of a neutron star mass above 2.5 Msun would exclude a black hole -- torus central engine model of short gamma-ray bursts in double neutron star mergers. Such an observation would also indicate that if in fact short gamma-ray bursts are connected to neutron star mergers, the gamma-ray burst engine is best explained by the lesser known model invoking a highly magnetized massive neutron star (e.g., Usov 1992; Kluzniak & Ruderman 1998; Dai et al. 2006; Metzger, Quataert & Thompson 2007).

K. Belczynski; R. O'Shaughnessy; V. Kalogera; F. Rasio; R. Taam; T. Bulik

2008-04-16T23:59:59.000Z

63

E-Print Network 3.0 - adverse events issues Sample Search Results  

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

In June 2008, the FDA issued... publications describing the use of rhBMP-2 in spinal fusion, adverse events of these types and frequency were... receiving rhBMP-2 within...

64

E-Print Network 3.0 - assessing adverse events Sample Search...  

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

morphogenetic protein-2 Summary: publications describing the use of rhBMP-2 in spinal fusion, adverse events of these types and frequency were... receiving rhBMP-2 within...

65

E-Print Network 3.0 - adverse events results Sample Search Results  

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

morphogenetic protein-2 Summary: publications describing the use of rhBMP-2 in spinal fusion, adverse events of these types and frequency were... receiving rhBMP-2 within...

66

E-Print Network 3.0 - adverse events aes Sample Search Results  

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

In 2009, seven subsidence events... publications describing the use of rhBMP-2 in spinal fusion, adverse events of these types and frequency were... receiving rhBMP-2 within...

67

E-Print Network 3.0 - adverse life events Sample Search Results  

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

morphogenetic protein-2 Summary: publications describing the use of rhBMP-2 in spinal fusion, adverse events of these types and frequency were... receiving rhBMP-2 within...

68

E-Print Network 3.0 - adverse event detection Sample Search Results  

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

morphogenetic protein-2 Summary: publications describing the use of rhBMP-2 in spinal fusion, adverse events of these types and frequency were... receiving rhBMP-2 within...

69

Measures against the adverse impact of natural wind on air-cooled condensers in power plant  

Science Journals Connector (OSTI)

The natural wind plays disadvantageous roles in the operation of air-cooled steam condensers in power plant. It is of use to take various measures against the adverse effect of wind for the performance improvemen...

LiJun Yang; XiaoZe Du; YongPing Yang

2010-05-01T23:59:59.000Z

70

E-Print Network 3.0 - adverse pulmonary events Sample Search...  

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

and Long-Term Safety of Deep Brain Stimulation In the Treatment of Movement Disorders C. Kenney, MD, R. Simpson, MD, PhD, C. Hunter, RN, W. Ondo, MD, Summary: adverse events...

71

E-Print Network 3.0 - adverse cardiac remodeling Sample Search...  

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

ajpheart.00831.2005 290:837-843, 2006. First published Sep 23, 2005;Am J Physiol Heart Circ Physiol Summary: to limit the adverse contractile and metabolic consequences...

72

E-Print Network 3.0 - adversely impacts biological Sample Search...  

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

costs... of in-water noise that results in adverse impacts to the species' survival and recovery.'' The commenter... and peer review comments, as well as economic impacts and ......

73

E-Print Network 3.0 - adverse health risks Sample Search Results  

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

Search Sample search results for: adverse health risks Page: << < 1 2 3 4 5 > >> 1 Health Care through the Lens of Risk Call for Papers for a four part special issue of...

74

Exotica possibility of new observations by BES  

E-Print Network [OSTI]

The employment of interpolating currents of existed studies of four-quark state and glueball with QCD sum rule approach is analyzed. In terms of suitable currents, the masses of the lowest lying scalar and pseudo-scalar glueball were determined. The masses of some tetraquark states and their first orbital excitations were obtained through a combination of the sum rule with the constituent quark model. Exotica possibility of the new observations by BES is discussed.

Ailin Zhang

2007-12-21T23:59:59.000Z

75

Mitigation of adverse interactions in pairs of clinical practice guidelines using constraint logic programming  

Science Journals Connector (OSTI)

We propose a new method to mitigate (identify and address) adverse interactions (drug-drug or drug-disease) that occur when a patient with comorbid diseases is managed according to two concurrently applied clinical practice guidelines (CPGs). A lack ... Keywords: Clinical decision support, Clinical practice guideline, Comorbid diseases, Constraint logic programming, Domain knowledge

Szymon Wilk; Wojtek Michalowski; Martin Michalowski; Ken Farion; Marisela Mainegra Hing; Subhra Mohapatra

2013-04-01T23:59:59.000Z

76

An efficient speech recognition system in adverse conditions using the nonparametric regression  

Science Journals Connector (OSTI)

General Regression Neural Networks (GRNN) have been applied to phoneme identification and isolated word recognition in clean speech. In this paper, the authors extended this approach to Arabic spoken word recognition in adverse conditions. In fact, noise ... Keywords: Arabic digits, General Regression Neural Network, Hidden Markov Model, Noisy environment, Nonparametric regression, Speech recognition

Abderrahmane Amrouche; Mohamed Debyeche; Abdelmalik Taleb-Ahmed; Jean Michel Rouvaen; Mustapha C. E. Yagoub

2010-02-01T23:59:59.000Z

77

Early Adversity Alters Attention and Locomotion in Adult SpragueDawley Rats  

E-Print Network [OSTI]

Early Adversity Alters Attention and Locomotion in Adult Sprague�Dawley Rats Christie Burton the effects of prenatal stress and its interaction with artificial rearing (AR) on adult rat behavior by their mothers or in the AR paradigm, with or without stroking stimulation. In adulthood, rats were tested

Sokolowski, Marla

78

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

79

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

80

Procedures for Interagency Consultation to Avoid or Mitigate Adverse Effects on Rivers in the Nationwide Inventory  

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

Procedures for Interagency Consultation to Avoid or Mitigate Adverse Effects Procedures for Interagency Consultation to Avoid or Mitigate Adverse Effects on Rivers in the Nationwide Inventory These procedures are designed to assist federal officials in complying with the President's directive (attached) to protect rivers in the Nationwide Inventory through the normal environmental analysis process. NEOA, E.O. 1 15 14, CEQ's NEPA Regulations, and agency implementing procedures should be used to meet the President's directive. Although the steps outlined below pertain to wild and scenic river protection, they also fit clearly within agencies' existing environmental analysis processes. Agencies are already required: to identify and analyze the environmental effects of their actions; to consult with agencies with jurisdiction by law or special expertise (in this case, the National Park Service (NPS)); to

Note: This page contains sample records for the topic "lowest observed adverse" 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

Correlation of Clinical and Dosimetric Factors With Adverse Pulmonary Outcomes in Children After Lung Irradiation  

SciTech Connect (OSTI)

Purpose: To identify the incidence and the risk factors for pulmonary toxicity in children treated for cancer with contemporary lung irradiation. Methods and Materials: We analyzed clinical features, radiographic findings, pulmonary function tests, and dosimetric parameters of children receiving irradiation to the lung fields over a 10-year period. Results: We identified 109 patients (75 male patients). The median age at irradiation was 13.8 years (range, 0.04-20.9 years). The median follow-up period was 3.4 years. The median prescribed radiation dose was 21 Gy (range, 0.4-64.8 Gy). Pulmonary toxic chemotherapy included bleomycin in 58.7% of patients and cyclophosphamide in 83.5%. The following pulmonary outcomes were identified and the 5-year cumulative incidence after irradiation was determined: pneumonitis, 6%; chronic cough, 10%; pneumonia, 35%; dyspnea, 11%; supplemental oxygen requirement, 2%; radiographic interstitial lung disease, 40%; and chest wall deformity, 12%. One patient died of progressive respiratory failure. Post-irradiation pulmonary function tests available from 44 patients showed evidence of obstructive lung disease (25%), restrictive disease (11%), hyperinflation (32%), and abnormal diffusion capacity (12%). Thoracic surgery, bleomycin, age, mean lung irradiation dose (MLD), maximum lung dose, prescribed dose, and dosimetric parameters between V{sub 22} (volume of lung exposed to a radiation dose ?22 Gy) and V{sub 30} (volume of lung exposed to a radiation dose ?30 Gy) were significant for the development of adverse pulmonary outcomes on univariate analysis. MLD, maximum lung dose, and V{sub dose} (percentage of volume of lung receiving the threshold dose or greater) were highly correlated. On multivariate analysis, MLD was the sole significant predictor of adverse pulmonary outcome (P=.01). Conclusions: Significant pulmonary dysfunction occurs in children receiving lung irradiation by contemporary techniques. MLD rather than prescribed dose should be used to perform risk stratification of patients receiving lung irradiation.

Venkatramani, Rajkumar, E-mail: rvenkatramani@chla.usc.edu [Division of Hematology/Oncology, Children's Hospital Los Angeles, Los Angeles, California (United States); Department of Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, California (United States); Kamath, Sunil [Department of Pulmonology, Children's Hospital Los Angeles, Los Angeles, California (United States); Wong, Kenneth [Division of Hematology/Oncology, Children's Hospital Los Angeles, Los Angeles, California (United States); Olch, Arthur J. [Division of Hematology/Oncology, Children's Hospital Los Angeles, Los Angeles, California (United States); Department of Radiation Oncology, University of Southern California, Los Angeles, California (United States); Malvar, Jemily [Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California (United States); Sposto, Richard [Division of Hematology/Oncology, Children's Hospital Los Angeles, Los Angeles, California (United States); Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California (United States); Goodarzian, Fariba [Department of Radiology, Children's Hospital Los Angeles, Los Angeles, California (United States); Freyer, David R. [Division of Hematology/Oncology, Children's Hospital Los Angeles, Los Angeles, California (United States); Department of Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, California (United States); Keens, Thomas G. [Department of Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, California (United States); Department of Pulmonology, Children's Hospital Los Angeles, Los Angeles, California (United States); and others

2013-08-01T23:59:59.000Z

82

HERSCHEL OBSERVATIONS OF CATACLYSMIC VARIABLES  

SciTech Connect (OSTI)

We have used the PACS instrument on the Herschel Space Observatory to observe eight cataclysmic variables at 70 and 160 {mu}m. Of these eight objects, only AM Her was detected. We have combined the Herschel results with ground-based, Spitzer, and WISE observations to construct spectral energy distributions for all of the targets. For the two dwarf novae in the sample, SS Cyg and U Gem, we find that their infrared luminosities are completely dominated by their secondary stars. For the two highly magnetic 'polars' in our survey, AM Her and EF Eri, we find that their mid-infrared excesses, previously attributed to circumbinary dust emission, can be fully explained by cyclotron emission. The WISE light curves for both sources show large, orbitally modulated variations that are identically phased to their near-IR light curves. We propose that significant emission from the lowest cyclotron harmonics (n {<=} 3) is present in EF Eri and AM Her. Previously, such emission would have been presumed to be optically thick, and not provide significant orbitally modulated flux. This suggests that the accretion onto polars is more complicated than assumed in the simple models developed for these two sources. We develop a model for the near-/mid-IR light curves for WZ Sge with an L2 donor star that shows that the ellipsoidal variations from its secondary star are detected. We conclude that none of the targets surveyed have dusty circumbinary disks.

Harrison, Thomas E.; Hamilton, Ryan T. [Department of Astronomy, New Mexico State University, Box 30001, MSC 4500, Las Cruces, NM 88003-8001 (United States); Tappert, Claus [Departamento de Fisica y Astronomia, Universidad de Valparaiso, Avda. Gran Bretana 1111, Valparaiso (Chile); Hoffman, Douglas I. [Infrared Processing and Analysis Center, California Institute of Technology, Pasadena, CA 91125 (United States); Campbell, Ryan K., E-mail: tharriso@nmsu.edu, E-mail: rthamilt@nmsu.edu, E-mail: claus.tappert@uv.cl, E-mail: dhoffman@ipac.caltech.edu, E-mail: Ryan.Campbell@humobldt.edu [Department of Physics and Astronomy, Humboldt State University, 1 Harpst St., Arcata, CA 95521 (United States)

2013-01-01T23:59:59.000Z

83

Modified design of radioisotope thermophotovoltaic generator to mitigate adverse effect of measured cell voltage  

SciTech Connect (OSTI)

A preceding OSC paper described a number of changes in the data base and in the methods--considerably more rigorous than those employed in the past--for analyzing the performance of Radioisotope Thermophotovoltaic (RTPV) converters. As shown, some of those changes were beneficial, but others--particularly the use of EDTEK`s experimentally measured open-circuit voltages and fill factors instead of previously used theoretical equations--had a substantial adverse effect on the predicted converter performance. EDTEK is continuing work on improved PV cells to more closely approach theoretical voltage predictions. In parallel with that effort, OSC has been investigating a number of generator design modifications to achieve additional improvements in system performance. Specifically, OSC found that the converter`s performance could be significantly improved by increasing the heat flux incident on the PV cells. As will be explained, OSC`s preferred design, which entails placing the TPV converters on the housing`s end covers instead of its side walls, not only improves the generator`s performance but also offers important programmatic, fabrication, and processing advantages.

Schock, A.; Or, C.T.; Kumar, V. [Orbital Sciences Corp., Germantown, MD (United States)

1996-12-31T23:59:59.000Z

84

Most informed people realize that cumulative impacts have had significant adverse effects on water quality and aquatic resources.  

E-Print Network [OSTI]

are highly inter-related. One large variable in the puzzle are the choices people make. Choices Affect us AllMost informed people realize that cumulative impacts have had significant adverse effects on water to look at shorelines as an ecosystem. The ecosystem concept is important because our coastal lands, air

85

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

86

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

87

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

88

Human exposure to mercury: A critical assessment of the evidence of adverse health effects  

SciTech Connect (OSTI)

The ubiquitous nature of mercury in the environment, its global atmospheric cycling, and its toxicity to humans at levels that are uncomfortably close to exposures experienced by a proportion of the population are some of the current concerns associated with this pollutant. The purpose of this review is to critically evaluate the scientific quality of published reports involving human exposures to mercury and associated health outcomes as an aid in the risk evaluation of this chemical. A comprehensive review of the scientific literature involving human exposures to mercury was performed and each publication evaluated using a defined set of criteria that are considered standards in epidemiologic and toxicologic research. Severe, sometimes fatal, effects of mercury exposure at high levels were primarily reported as case studies. The disasters in Minamata, Japan, in the 1950s and in Iraq in 1971-1972 clearly demonstrated neurologic effects associated with ingestion of methylmercury both in adults and in infants exposed in utero. The effects were convincingly Associated with methylmercury ingestion, despite limitations of the study design. Several well-conducted studies have investigated the effects of methylmercury at levels below those in the Iraq incident but have not provided clear evidence of an effect. The lower end of the dose-response curve constructed from the Iraq data therefore still needs to be confirmed. The studies of mercury exposure in the workplace were mainly of elemental or inorganic mercury, and effects that were observed at relatively low exposure levels were primarily neurologic and renal. Several studies have investigated effects associated with dental amalgam but have been rated as inconclusive because of methodologic deficiencies. In our overall evaluation, 29 of 110 occupational studies and 20 of 54 studies where exposure occurred in the natural environment provided at least suggestive evidence of an exposure-related effect. 259 refs., 4 tabs.

Ratcliffe, H.E.; Swanson, G.M.; Fischer, L.J. [Michigan State Univ., East Lansing, MI (United States)

1996-10-25T23:59:59.000Z

89

High-throughput identification of off-targets for the mechanistic study of severe adverse drug reactions induced by analgesics  

SciTech Connect (OSTI)

Drugs may induce adverse drug reactions (ADRs) when they unexpectedly bind to proteins other than their therapeutic targets. Identification of these undesired protein binding partners, called off-targets, can facilitate toxicity assessment in the early stages of drug development. In this study, a computational framework was introduced for the exploration of idiosyncratic mechanisms underlying analgesic-induced severe adverse drug reactions (SADRs). The putative analgesic-target interactions were predicted by performing reverse docking of analgesics or their active metabolites against human/mammal protein structures in a high-throughput manner. Subsequently, bioinformatics analyses were undertaken to identify ADR-associated proteins (ADRAPs) and pathways. Using the pathways and ADRAPs that this analysis identified, the mechanisms of SADRs such as cardiac disorders were explored. For instance, 53 putative ADRAPs and 24 pathways were linked with cardiac disorders, of which 10 ADRAPs were confirmed by previous experiments. Moreover, it was inferred that pathways such as base excision repair, glycolysis/glyconeogenesis, ErbB signaling, calcium signaling, and phosphatidyl inositol signaling likely play pivotal roles in drug-induced cardiac disorders. In conclusion, our framework offers an opportunity to globally understand SADRs at the molecular level, which has been difficult to realize through experiments. It also provides some valuable clues for drug repurposing. - Highlights: • A novel computational framework was developed for mechanistic study of SADRs. • Off-targets of drugs were identified in large scale and in a high-throughput manner. • SADRs like cardiac disorders were systematically explored in molecular networks. • A number of ADR-associated proteins were identified.

Pan, Jian-Bo [Department of Chemical Biology, College of Chemistry and Chemical Engineering, The Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, Xiamen, Fujian 361005 (China); Ji, Nan; Pan, Wen; Hong, Ru [State Key Laboratory of Stress Cell Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102 (China); Wang, Hao [Department of Chemical Biology, College of Chemistry and Chemical Engineering, The Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, Xiamen, Fujian 361005 (China); Ji, Zhi-Liang, E-mail: appo@xmu.edu.cn [State Key Laboratory of Stress Cell Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102 (China); Department of Chemical Biology, College of Chemistry and Chemical Engineering, The Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, Xiamen, Fujian 361005 (China)

2014-01-01T23:59:59.000Z

90

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

91

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...

92

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

93

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

94

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

95

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.

96

X-ray observations through the outburst cycle of the dwarf nova YZ Cnc  

E-Print Network [OSTI]

We have observed YZ Cnc at two day intervals from 6 to 24 April 1998, covering two full outburst cycles. The 0.1-2.4 keV flux is lower during optical outburst than in quiescence, and lowest at the end of the outburst. The decline of the X-ray flux in the quiescent interval appears to be in contrast to prediction of simple models for accretion-disk instabilities. Variability on \\~hour time scales is present, but appears not related to the orbital phase. YZ Cnc was less luminous in X-rays during our 1998 observations than in earlier ROSAT observations.

Frank Verbunt; Peter J. Wheatley; Janet A. Mattei

1999-03-15T23:59:59.000Z

97

The influence of a triclosan toothpaste on adverse events in patients with cardiovascular disease over 5-years  

Science Journals Connector (OSTI)

Abstract Adverse effects of long-term usage of triclosan-containing toothpaste in humans are currently unknown. We assessed the effect of long-term use of 0.3% triclosan-toothpaste on serious adverse events (SAEs) in patients with cardiovascular disease (CVD). 438 patients with a history of stable CVD were entered into the 5-year longitudinal Cardiovascular and Periodontal Study at Prince Charles Hospital, Brisbane, Australia and randomised into test (triclosan) or placebo groups. There were no significant differences in demographics or clinical features between the groups. Patients were examined at baseline, and annually for 5-years. \\{SAEs\\} were classified according to the System Organ Classes defined by MedDRA (Medical Dictionary for Regulatory Activities). Results were analysed using chi square and Kaplan Meier analysis. Overall, 232 patients (123 in the triclosan group; 109 in the placebo group) experienced 569 \\{SAEs\\} (288 in the triclosan group and 281 in the placebo group). There was no significant difference between the groups in numbers of patients experiencing \\{SAEs\\} (p = 0.35) or specific cardiovascular \\{SAEs\\} (p = 0.82), nor in time to the first SAE or first cardiovascular SAE, irrespective of gender, age or BMI after adjusting for multiple comparisons (p > 0.05). The adjusted odds of experiencing an SAE were estimated to increase by 2.7% for each year of age (p = 0.02) and the adjusted odds of experiencing a cardiovascular SAE were estimated to increase by 5.1% for each unit increase in BMI (p = 0.02). Most cardiovascular events were related to unstable angina or myocardial infarcts, 21 were associated with arrhythmia and 41 were vascular events such as aortic aneurysm and cerebrovascular accident. Within the limitations of the present study the data suggest that the use of triclosan-toothpaste may not be associated with any increase in \\{SAEs\\} in this CVD population. The long-term impact of triclosan on hormone-related disease, such as cancer, in humans remains to be determined.

Mary P. Cullinan; Janet E. Palmer; Anne D. Carle; Malcolm J. West; Bill Westerman; Gregory J. Seymour

2014-01-01T23:59:59.000Z

98

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

99

Observation of the Kondo effect in a spin-3/2 hole quantum dot  

SciTech Connect (OSTI)

We report the observation of the Kondo effect in a spin-3/2 hole quantum dot formed near pinch-off in a GaAs quantum wire. We clearly observe two distinctive hallmarks of quantum dot Kondo physics. First, the zero-bias peak in the differential conductance splits an in-plane magnetic field and the splitting is independent of gate voltage. Second, the splitting rate is twice as large as that for the lowest one-dimensional subband. We show that the Zeeman splitting of the zero-bias peak is highly anisotropic and attribute this to the strong spin-orbit interaction for holes in GaAs.

Klochan, O.; Micolich, A. P.; Hamilton, A. R. [School of Physics, University of New South Wales, Sydney NSW 2052 (Australia); Trunov, K.; Reuter, D.; Wieck, A. D. [Angewandte Festkörperphysik, Ruhr-Universität Bochum, D-44780 Bochum (Germany)

2013-12-04T23:59:59.000Z

100

Observation of spin-wave dispersion in Nd-Fe-B magnets using neutron Brillouin scattering  

SciTech Connect (OSTI)

The low-energy spin-wave dispersion in polycrystalline Nd-Fe-B magnets was observed using neutron Brillouin scattering (NBS). Low-energy spin-wave excitations for the lowest acoustic spin-wave mode were clearly observed. From the spin-wave dispersion, we were able to determine the spin-wave stiffness constant D{sub sw} (100.0?±?4.9?meV.Å{sup 2}) and the exchange stiffness constant A (6.6 ± 0.3 pJ/m)

Ono, K., E-mail: kanta.ono@kek.jp; Inami, N.; Saito, K.; Takeichi, Y.; Kawana, D.; Yokoo, T.; Itoh, S. [Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801 (Japan); Yano, M.; Shoji, T.; Manabe, A.; Kato, A. [Toyota Motor Corporation, Toyota, Aichi 471-8571 (Japan); Kaneko, Y. [Toyota Central R and D Labs. Inc., Aichi 480-1192 (Japan)

2014-05-07T23:59:59.000Z

Note: This page contains sample records for the topic "lowest observed adverse" 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

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

102

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

103

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

104

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

105

Using ARM TWP Nauru Observations to Evaluate a Simple Thermodynamic Model  

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

Using ARM TWP Nauru Observations to Evaluate a Simple Thermodynamic Model Using ARM TWP Nauru Observations to Evaluate a Simple Thermodynamic Model of the Subcloud Layer Under Fair-Weather Cumulus Conditions Albrecht, Bruce University of Miami Kollias, Pavlos Brookhaven National Laboratory Category: Modeling Marine boundary layer clouds are fundamental in regulating the vertical structure of water vapor and entropy in the lowest 2 km of the Earth's atmosphere. The observations from the ARM TWP-Nauru site provide a unique opportunity to study these clouds and the associated boundary layer structure. In this study an atmospheric mixed layer representation of the subcloud layer for application in fair-weather cumulus regimes is used to develop a diagnostic model of the near surface temperature and moisture associated with a given surface temperature and wind speed. This model

106

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

107

Implications of SCUBA observations for the Planck Surveyor  

E-Print Network [OSTI]

We investigate the implications for the Planck Surveyor of the recent sub-millimetre number counts obtained using the SCUBA camera. Since it observes at the same frequency as one of the higher frequency science channels on Planck, SCUBA can provide constraints on the point-source contribution to the CMB angular power spectrum, which require no extrapolation in frequency. We have calculated the two-point function of these sub-millimetre sources, using a Poisson model normalized to the observed counts. While the current data are uncertain, under reasonable assumptions the point-source contribution to the anisotropy is comparable to the noise in the 353GHz channel. The clustering of these sources is currently unknown, however if they cluster like the z~3 Lyman-break galaxies their signal would be larger than the primary anisotropy signal on scales smaller than about 10 arcmin. We expect the intensity of these sources to decrease for wavelengths longward of 850 microns. At the next lowest Planck frequency, 217GHz, the contribution from both the clustered and Poisson terms are dramatically reduced. Hence we do not expect these sources to seriously affect Planck's main science goal, the determination of the primordial anisotropy power spectrum. Rather, the potential determination of the distribution of sub-mm sources is a further piece of cosmology that Planck may be able to tackle.

Douglas Scott; Martin White

1999-03-18T23:59:59.000Z

108

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....

109

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...

110

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...

111

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

112

NS&T MANAGEMENT OBSERVATIONS  

SciTech Connect (OSTI)

The INL Management Observation Program (MOP) is designed to improve managers and supervisors understanding of work being performed by employees and the barriers impacting their success. The MOP also increases workers understanding of managements’ expectations as they relate to safety, security, quality, and work performance. Management observations (observations) are designed to improve the relationship and trust between employees and managers through increased engagement and interactions between managers and researchers in the field. As part of continuous improvement, NS&T management took initiative to focus on the participation and quality of observations in FY 14. This quarterly report is intended to (a) summarize the participation and quality of management’s observations, (b) assess observations for commonalities or trends related to facility or process barriers impacting research, and (c) provide feedback and make recommendations for improvements NS&T’s MOP.

Gianotto, David

2014-06-01T23:59:59.000Z

113

Current HMS Observations - Hanford Site  

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

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

114

Climate Change Update: Baseload Geothermal is One of the Lowest...  

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

of electricity, geothermal energy has a broad range of other applications including district heating, industrial processes, and direct space heating. Not only are these...

115

Determining the lowest-cost hydrogen delivery mode  

E-Print Network [OSTI]

from a central hydrogen production plant to a single point)atm at the central hydrogen production plant. The trailer isemissions at the hydrogen production plant, as well. This is

Yang, Christopher; Ogden, Joan M

2007-01-01T23:59:59.000Z

116

Determining the Lowest-Cost Hydrogen Delivery Mode  

E-Print Network [OSTI]

from a central hydrogen production plant to a single point)atm at the central hydrogen production plant. The trailer isemissions at the hydrogen production plant, as well. This is

Yang, Christopher; Ogden, Joan M

2008-01-01T23:59:59.000Z

117

Determining the Lowest-Cost Hydrogen Delivery Mode  

E-Print Network [OSTI]

while liquefaction electricity costs ($/kg) are independent0.10/kg while higher electricity costs ($0.075 vs $0.05/kWh)the cost of electricity and the cost of storage lead to

Yang, Christopher; Ogden, Joan M

2008-01-01T23:59:59.000Z

118

Determining the Lowest-Cost Hydrogen Delivery Mode  

E-Print Network [OSTI]

for compressed gas truck stations compared to pipelineLH 2 Trucks Gas Pipelines Refueling station a RefuelingPlant Compressed Gas Trucks Refueling station a (compressor,

Yang, Christopher; Ogden, Joan M

2008-01-01T23:59:59.000Z

119

Determining the lowest-cost hydrogen delivery mode  

E-Print Network [OSTI]

pressure b Storage Gas truck station (G) 30% a,b Liquid H 2for compressed gas truck stations compared to pipelineplant Compressed gas trucks Refueling station a (compressor,

Yang, Christopher; Ogden, Joan M

2007-01-01T23:59:59.000Z

120

Determining the lowest-cost hydrogen delivery mode  

E-Print Network [OSTI]

each station (typical gasoline stations today receive fuelstations, like gasoline stations, are likely to come in acomparable to a large gasoline station. For a given city

Yang, Christopher; Ogden, Joan M

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lowest observed adverse" 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

Determining the Lowest-Cost Hydrogen Delivery Mode  

E-Print Network [OSTI]

each station (typical gasoline stations today receive fuelstations, like gasoline stations, are likely to come in acomparable to a large gasoline station. For a given city

Yang, Christopher; Ogden, Joan M

2008-01-01T23:59:59.000Z

122

Contributing to Lowest Life Cycle Cost of High Speed  

E-Print Network [OSTI]

to enable constant production quality and high work safety Special developed machineries : Rail laying on rubber tyres #12;13 Repetitive construction interval of 2160 m in a 20 day cycle (single access tunnel) Production capacity 220 m linear slab track in15h Exceptional Track Quality Achieved ongoing Performance #12

Greenaway, Alan

123

Determining the Lowest-Cost Hydrogen Delivery Mode  

E-Print Network [OSTI]

liquefaction and liquid hydrogen storage tanks are needed.low cost of liquid hydrogen storage is offset by the highrefueling pressure. Hydrogen storage requirements vary among

Yang, Christopher; Ogden, Joan M

2008-01-01T23:59:59.000Z

124

Determining the lowest-cost hydrogen delivery mode  

E-Print Network [OSTI]

liquefaction and liquid hydrogen storage tanks are needed.low cost of liquid hydrogen storage is offset by the highrefueling pressure. Hydrogen storage requirements vary among

Yang, Christopher; Ogden, Joan M

2007-01-01T23:59:59.000Z

125

Determining the lowest-cost hydrogen delivery mode  

E-Print Network [OSTI]

liquid hydrogen pumps cost less than compressors. Further,hydrogen ?ow rate, though there are slight economies of scale associated with compressor cost.hydrogen storage tanks are needed. Costs for central plant compressors

Yang, Christopher; Ogden, Joan M

2007-01-01T23:59:59.000Z

126

Determining the Lowest-Cost Hydrogen Delivery Mode  

E-Print Network [OSTI]

liquid hydrogen pumps cost less than compressors. Further,hydrogen flow rate, though there are slight economies of scale associated with compressor cost.

Yang, Christopher; Ogden, Joan M

2008-01-01T23:59:59.000Z

127

OVERVIEW OF SATURN LIGHTNING OBSERVATIONS  

E-Print Network [OSTI]

OVERVIEW OF SATURN LIGHTNING OBSERVATIONS G. Fischer* , U. A. Dyudina , W. S. Kurth , D. A. Gurnett The lightning activity in Saturn's atmosphere has been monitored by Cassini for more than six years favorably with imaging observa- tions of related cloud features as well as direct observations of flash

Gurnett, Donald A.

128

Baryon Resonances Observed at BES  

E-Print Network [OSTI]

The $\\psi$ decays provide a novel way to explore baryon spectroscopy and baryon structure. The baryon resonances observed from $\\psi$ decays at BES are reviewed. The implications and prospects at upgraded BESIII/BEPCII are discussed.

B. S. Zou

2008-02-01T23:59:59.000Z

129

Improving and Observing Lithiation Reactions  

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

to observe these reactions in real-time as these reactions proceed. Enabling Silicon Carbide to Host Lithium In one set of measurements, they have discovered that the lithiation...

130

Elevated phenylacetic acid levels do not correlate with adverse events in patients with urea cycle disorders or hepatic encephalopathy and can be predicted based on the plasma PAA to PAGN ratio  

Science Journals Connector (OSTI)

AbstractBackground Phenylacetic acid (PAA) is the active moiety in sodium phenylbutyrate (NaPBA) and glycerol phenylbutyrate (GPB, HPN-100). Both are approved for treatment of urea cycle disorders (UCDs) — rare genetic disorders characterized by hyperammonemia. PAA is conjugated with glutamine in the liver to form phenylacetyleglutamine (PAGN), which is excreted in urine. PAA plasma levels ? 500 ?g/dL have been reported to be associated with reversible neurological adverse events (AEs) in cancer patients receiving PAA intravenously. Therefore, we have investigated the relationship between PAA levels and neurological \\{AEs\\} in patients treated with these PAA pro-drugs as well as approaches to identifying patients most likely to experience high PAA levels. Methods The relationship between nervous system AEs, PAA levels and the ratio of plasma PAA to PAGN were examined in 4683 blood samples taken serially from: [1] healthy adults [2], UCD patients of ? 2 months of age, and [3] patients with cirrhosis and hepatic encephalopathy (HE). The plasma ratio of PAA to PAGN was analyzed with respect to its utility in identifying patients at risk of high PAA values. Results Only 0.2% (11) of 4683 samples exceeded 500 ?g/ml. There was no relationship between neurological \\{AEs\\} and PAA levels in UCD or HE patients, but transient \\{AEs\\} including headache and nausea that correlated with PAA levels were observed in healthy adults. Irrespective of population, a curvilinear relationship was observed between PAA levels and the plasma PAA:PAGN ratio, and a ratio > 2.5 (both in ?g/mL) in a random blood draw identified patients at risk for PAA levels > 500 ?g/ml. Conclusions The presence of a relationship between PAA levels and reversible \\{AEs\\} in healthy adults but not in UCD or HE patients may reflect intrinsic differences among the populations and/or metabolic adaptation with continued dosing. The plasma PAA:PAGN ratio is a functional measure of the rate of PAA metabolism and represents a useful dosing biomarker.

M. Mokhtarani; G.A. Diaz; W. Rhead; S.A. Berry; U. Lichter-Konecki; A. Feigenbaum; A. Schulze; N. Longo; J. Bartley; W. Berquist; R. Gallagher; W. Smith; S.E. McCandless; C. Harding; D.C. Rockey; J.M. Vierling; P. Mantry; M. Ghabril; R.S. Brown Jr.; K. Dickinson; T. Moors; C. Norris; D. Coakley; D.A. Milikien; S.C. Nagamani; C. LeMons; B. Lee; B.F. Scharschmidt

2013-01-01T23:59:59.000Z

131

ARM - Surface Aerosol Observing System  

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

FacilitiesSurface Aerosol Observing System FacilitiesSurface 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 Surface Aerosol Observing System The ARM Mobile Facility (AMF) is equipped to quantify the interaction between clouds and aerosol particles. A counter-flow virtual impactor (CVI) is used to selectively sample cloud drops. The CVI takes advantage of the

132

Observing dynamos in cool stars  

E-Print Network [OSTI]

The main aim of this paper is to introduce the most important observables that help us to investigate stellar dynamos and compare those to the modeling results. We give an overview of the available observational methods and data processing techniques that are suitable for such purposes, with touching upon examples of inadequate interpretations as well. Stellar observations are compared to the solar data in such a way, which ensures that the measurements are comparable in dimension, wavelength, and timescale. A brief outlook is given to the future plans and possibilities. A thorough review of this topic was published nearly a decade ago (Berdyugina 2005), now we focus on the experience that have been gathered since that time.

Kovari, Zsolt

2014-01-01T23:59:59.000Z

133

Adventure and Adversity Issue 2  

E-Print Network [OSTI]

OF CONTENTS Solace: A Midwinter's Tale (HH/Pellew/Edrington) by Anne Fairchild 1 An injured and demoralized ColonelEdringtonjtnds comfort in the arms ofHoratio and Edward, while the trio's relationship undergoes some changes. Firelight (Horatio... to their limits and beyond. I To Sail as Men (HH/EP) by The Ragged Rose 123 Sequel to Flat Aback. After a glass of wine in Pellew's cabin, Horatio and Edward turn to more interesting pursuits. The Garden (Horatio/Edrington) by Elizabeth Holden ... 127...

Multiple Contributors

2013-11-27T23:59:59.000Z

134

Observation of relativistic antihydrogen atoms  

SciTech Connect (OSTI)

An observation of relativistic antihydrogen atoms is reported in this dissertation. Experiment 862 at Fermi National Accelerator Laboratory observed antihydrogen atoms produced by the interaction of a circulating beam of high momentum (3 < p < 9 GeV/c) antiprotons and a jet of molecular hydrogen gas. Since the neutral antihydrogen does not bend in the antiproton source magnets, the detectors could be located far from the interaction point on a beamline tangent to the storage ring. The detection of the antihydrogen is accomplished by ionizing the atoms far from the interaction point. The positron is deflected by a magnetic spectrometer and detected, as are the back to back photons resulting from its annihilation. The antiproton travels a distance long enough for its momentum and time of flight to be measured accurately. A statistically significant sample of 101 antihydrogen atoms has been observed. A measurement of the cross section for {bar H}{sup 0} production is outlined within. The cross section corresponds to the process where a high momentum antiproton causes e{sup +} e{sup -} pair creation near a nucleus with the e{sup +} being captured by the antiproton. Antihydrogen is the first atom made exclusively of antimatter to be detected. The observation experiment's results are the first step towards an antihydrogen spectroscopy experiment which would measure the n = 2 Lamb shift and fine structure.

Blanford, Glenn DelFosse

1998-01-01T23:59:59.000Z

135

Biomass Burning Observation Project Specifically,  

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

Burning Observation Project Burning Observation Project Specifically, the aircraft will obtain measurements of the microphysical, chemical, hygroscopic, and optical properties of aerosols. Data captured during BBOP will help scientists better understand how aerosols combine and change at a variety of distances and burn times. Locations Pasco, Washington. From July through September, the G-1 will be based out of its home base in Washington. From this location, it can intercept and measure smoke plumes from naturally occurring uncontrolled fires across Washington, Oregon, Idaho, Northern California, and Western Montana. Smoke plumes aged 0-5 hours are the primary targets for this phase of the campaign. Memphis, Tennessee. In October, the plane moves to Tennessee to sample prescribed

136

Observations of the Icy Universe  

E-Print Network [OSTI]

Freeze-out of the gas phase elements onto cold grains in dense interstellar and circumstellar media builds up ice mantles consisting of molecules that are mostly formed in situ (H2O, NH3, CO2, CO, CH3OH, and more). This review summarizes the detected infrared spectroscopic ice features and compares the abundances across Galactic, extragalactic, and solar system environments. A tremendous amount of information is contained in the ice band profiles. Laboratory experiments play a critical role in the analysis of the observations. Strong evidence is found for distinct ice formation stages, separated by CO freeze out at high densities. The ice bands have proven to be excellent probes of the thermal history of their environment. The evidence for the long-held idea that processing of ices by energetic photons and cosmic rays produces complex molecules is weak. Recent state of the art observations show promise for much progress in this area with planned infrared facilities.

Boogert, Adwin; Whittet, Douglas

2015-01-01T23:59:59.000Z

137

Observation of an Antimatter Hypernucleus  

SciTech Connect (OSTI)

Nuclear collisions recreate conditions in the universe microseconds after the Big Bang. Only a very small fraction of the emitted fragments are light nuclei, but these states are of fundamental interest. We report the observation of antihypertritons - composed of an antiproton, antineutron, and antilambda hyperon - produced by colliding gold nuclei at high energy. Our analysis yields 70 {+-} 17 antihypertritons ({sub {bar {Lambda}}}{sup 3}{bar H}) and 157 {+-} 30 hypertritons ({sub {Lambda}}{sup 3}H). The measured yields of {sub {Lambda}}{sup 3}H ({sub {bar {Lambda}}}{sup 3}{bar H}) and {sup 3}He ({sup 3}{ovr He}) are similar, suggesting an equilibrium in coordinate and momentum space populations of up, down, and strange quarks and antiquarks, unlike the pattern observed at lower collision energies. The production and properties of antinuclei, and nuclei containing strange quarks, have implications spanning nuclear/particle physics, astrophysics, and cosmology.

STAR Collaboration; Abelev, Betty

2010-07-05T23:59:59.000Z

138

Observational Consequences of a Landscape  

E-Print Network [OSTI]

In this paper we consider the implications of the "landscape" paradigm for the large scale properties of the universe. The most direct implication of a rich landscape is that our local universe was born in a tunnelling event from a neighboring vacuum. This would imply that we live in an open FRW universe with negative spatial curvature. We argue that the "overshoot" problem, which in other settings would make it difficult to achieve slow roll inflation, actually favors such a cosmology. We consider anthropic bounds on the value of the curvature and on the parameters of inflation. When supplemented by statistical arguments these bounds suggest that the number of inflationary efolds is not very much larger than the observed lower bound. Although not statistically favored, the likelihood that the number of efolds is close to the bound set by observations is not negligible. The possible signatures of such a low number of efolds are briefly described.

Ben Freivogel; Matthew Kleban; Maria Rodriguez Martinez; Leonard Susskind

2005-05-26T23:59:59.000Z

139

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

140

Direct observation of resistive heating at graphene wrinkles and grain boundaries  

SciTech Connect (OSTI)

We directly measure the nanometer-scale temperature rise at wrinkles and grain boundaries (GBs) in functioning graphene devices by scanning Joule expansion microscopy with 50 nm spatial and 0.2K temperature resolution. We observe a small temperature increase at select wrinkles and a large (100 K) temperature increase at GBs between coalesced hexagonal grains. Comparisons of measurements with device simulations estimate the GB resistivity (8 150 X lm) among the lowest reported for graphene grown by chemical vapor deposition. An analytical model is developed, showing that GBs can experience highly localized resistive heating and temperature rise, most likely affecting the reliability of graphene devices. Our studies provide an unprecedented view of thermal effects surrounding nanoscale defects in nanomaterials such as graphene.

Grosse, Kyle L. [University of Illinois Urbana-Champaign; Dorgan, Vincent E. [University of Illinois at Urbana-Champaign, Urbana-Champaign; Estrada, David [University of Illinois at Urbana-Champaign, Urbana-Champaign; Wood, Joshua D. [University of Illinois at Urbana-Champaign, Urbana-Champaign; Vlassiouk, Ivan V [ORNL; Eres, Gyula [ORNL; Lyding, Joseph W [University of Illinois at Urbana-Champaign, Urbana-Champaign; King, William P. [University of Illinois at Urbana-Champaign, Urbana-Champaign; Pop, Eric [Stanford University

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lowest observed adverse" 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

Observation of the Top Quark  

DOE R&D Accomplishments [OSTI]

Top quark production is observed in{bar p}p collisions at{radical}s= 1.8 TeV at the Fermilab Tevatron. The Collider Detector at Fermilab (CDF) and D{O} observe signals consistent with t{bar t} to WWb{bar b}, but inconsistent with the background prediction by 4.8{sigma} (CDF), 4.6a (D{O}). Additional evidence for the top quark Is provided by a peak in the reconstructed mass distribution. The kinematic properties of the excess events are consistent with the top quark decay. They measure the top quark mass to be 176{plus_minus}8(stat.){plus_minus}10(sys.) GeV/c{sup 2} (CDF), 199{sub -21}{sup+19}(stat.){plus_minus}22(sys.) GeV/c{sup 2} (D{O}), and the t{bar t} production cross section to be 6.8{sub -2.4}{sup+3.6}pb (CDF), 6.4{plus_minus}2.2 pb (D{O}).

Kim, S. B.

1995-08-00T23:59:59.000Z

142

Jet Observables Without Jet Algorithms  

E-Print Network [OSTI]

We introduce a new class of event shapes to characterize the jet-like structure of an event. Like traditional event shapes, our observables are infrared/collinear safe and involve a sum over all hadrons in an event, but like a jet clustering algorithm, they incorporate a jet radius parameter and a transverse momentum cut. Three of the ubiquitous jet-based observables---jet multiplicity, summed scalar transverse momentum, and missing transverse momentum---have event shape counterparts that are closely correlated with their jet-based cousins. Due to their "local" computational structure, these jet-like event shapes could potentially be used for trigger-level event selection at the LHC. Intriguingly, the jet multiplicity event shape typically takes on non-integer values, highlighting the inherent ambiguity in defining jets. By inverting jet multiplicity, we show how to characterize the transverse momentum of the n-th hardest jet without actually finding the constituents of that jet. Since many physics applications do require knowledge about the jet constituents, we also build a hybrid event shape that incorporates (local) jet clustering information. As a straightforward application of our general technique, we derive an event-shape version of jet trimming, allowing event-wide jet grooming without explicit jet identification. Finally, we briefly mention possible applications of our method for jet substructure studies.

Daniele Bertolini; Tucker Chan; Jesse Thaler

2013-10-28T23:59:59.000Z

143

Sky Cover from MFRSR Observations  

SciTech Connect (OSTI)

The diffuse all-sky surface irradiances measured at two nearby wavelengths in the visible spectral range and their model clear-sky counterparts are two main components of a new method for estimating the fractional sky cover of different cloud types, including cumulus clouds. The performance of this method is illustrated using 1-min resolution data from ground-based Multi-Filter Rotating Shadowband Radiometer (MFRSR). The MFRSR data are collected at the U.S. Department of Energy Atmospheric Radiation Measurement (ARM) Climate Research Facility (ACRF) Southern Great Plains (SGP) site during the summer of 2007 and represent 13 days with cumulus clouds. Good agreement is obtained between estimated values of the fractional sky cover and those provided by a well-established independent method based on broadband observations.

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

2011-07-01T23:59:59.000Z

144

Aerosol Observing System (AOS) Handbook  

SciTech Connect (OSTI)

The Aerosol Observing System (AOS) is a suite of in situ surface measurements of aerosol optical and cloud-forming properties. The instruments measure aerosol properties that influence the earth’s radiative balance. The primary optical measurements are those of the aerosol scattering and absorption coefficients as a function of particle size and radiation wavelength and cloud condensation nuclei (CCN) measurements as a function of percent supersaturation. Additional measurements include those of the particle number concentration and scattering hygroscopic growth. Aerosol optical measurements are useful for calculating parameters used in radiative forcing calculations such as the aerosol single-scattering albedo, asymmetry parameter, mass scattering efficiency, and hygroscopic growth. CCN measurements are important in cloud microphysical models to predict droplet formation.

Jefferson, A

2011-01-17T23:59:59.000Z

145

Distributions: generators of observations What about reality?  

E-Print Network [OSTI]

Distributions: generators of observations What about reality? An example: homeopathy Conclusion Models, Estimation and Reality #12;Distributions: generators of observations What about reality? An example: homeopathy Conclusion 1. Distributions: generators of observations Statistical modelling is based

Hennig, Christian

146

Risk Assessment Approaches for Nanomaterials  

E-Print Network [OSTI]

%) with extrapolation to lower "acceptable" risk 3. Analogy or comparative toxicity to other substances with similar7/3/2013 1 Risk Assessment Approaches for Nanomaterials Eileen D. Kuempel, PhD Nanotechnology to Nanomaterials Risk Assessment 1. No observed adverse effect level (NOAEL) or lowest (LOAEL) with uncertainty

Farritor, Shane

147

First Observation of Plasmarons in Graphene  

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

First Observation of Plasmarons in Graphene First Observation of Plasmarons in Graphene Print Wednesday, 30 June 2010 00:00 An international team of scientists performing...

148

Observing chemistry of atmospheric particles | EMSL  

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

Observing chemistry of atmospheric particles Observing chemistry of atmospheric particles Review article reached the International Reviews in Physical Chemistry most read list NULL...

149

MULTIWAVELENGTH OBSERVATIONS AND MODELING OF 1ES 1959+650 IN A LOW FLUX STATE  

SciTech Connect (OSTI)

We report on the VERITAS observations of the high-frequency peaked BL Lac object 1ES 1959+650 in the period 2007-2011. This source is detected at TeV energies by VERITAS at 16.4 standard deviation ({sigma}) significance in 7.6 hr of observation in a low flux state. A multiwavelength spectral energy distribution (SED) is constructed from contemporaneous data from VERITAS, Fermi-LAT, RXTE PCA, and Swift UVOT. Swift XRT data is not included in the SED due to a lack of simultaneous observations with VERITAS. In contrast to the orphan {gamma}-ray flare exhibited by this source in 2002, the X-ray flux of the source is found to vary by an order of magnitude, while other energy regimes exhibit less variable emission. A quasi-equilibrium synchrotron self-Compton model with an additional external radiation field is used to describe three SEDs corresponding to the lowest, highest, and average X-ray states. The variation in the X-ray spectrum is modeled by changing the electron injection spectral index, with minor adjustments of the kinetic luminosity in electrons. This scenario produces small-scale flux variability of the order of {approx}< 2 in the high energy (E > 1 MeV) and very high energy (E > 100 GeV) {gamma}-ray regimes, which is corroborated by the Fermi-LAT, VERITAS, and Whipple 10 m telescope light curves.

Aliu, E.; Errando, M. [Department of Physics and Astronomy, Barnard College, Columbia University, NY 10027 (United States); Archambault, S. [Physics Department, McGill University, Montreal, QC H3A 2T8 (Canada); Arlen, T.; Aune, T. [Department of Physics and Astronomy, University of California, Los Angeles, CA 90095 (United States); Beilicke, M.; Bugaev, V.; Dickherber, R. [Department of Physics, Washington University, St. Louis, MO 63130 (United States); Benbow, W. [Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645 (United States); Bird, R.; Collins-Hughes, E. [School of Physics, University College Dublin, Belfield, Dublin 4 (Ireland); Boettcher, M. [Astrophysical Institute, Department of Physics and Astronomy, Ohio University, Athens, OH 45701 (United States); Bouvier, A. [Santa Cruz Institute for Particle Physics and Department of Physics, University of California, Santa Cruz, CA 95064 (United States); Byrum, K. [Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439 (United States); Cesarini, A.; Connolly, M. P. [School of Physics, National University of Ireland Galway, University Road, Galway (Ireland); Ciupik, L. [Astronomy Department, Adler Planetarium and Astronomy Museum, Chicago, IL 60605 (United States); Cui, W. [Department of Physics, Purdue University, West Lafayette, IN 47907 (United States); Duke, C. [Department of Physics, Grinnell College, Grinnell, IA 50112-1690 (United States); Dumm, J. [School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455 (United States); and others

2013-09-20T23:59:59.000Z

150

WORLD SURFACE CURRENTS FROM SHIP'S DRIFT OBSERVATIONS  

SciTech Connect (OSTI)

Over 4 million observations of ship's drift are on file at the U.S. National Oceanographic Data Centre, in Washington, D. C., representing a vast amount of information on ocean surface currents. The observed drift speeds are dependent on the frequency of occurence of the particular current speeds and the frequency of observation. By comparing frequency of observation with the drift speeds observed it is possible to confirm known current patterns and detect singularities in surface currents.

Duncan, C.P.; Schladow, S.G.

1980-11-01T23:59:59.000Z

151

Special Emphasis Observances | Department of Energy  

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

Services » Diversity and Inclusion » Special Emphasis Observances Services » Diversity and Inclusion » Special Emphasis Observances Special Emphasis Observances The Energy Department celebrates special emphasis observances regularly, inviting guest speakers to highlight how the agency's mission benefits from diversity and inclusion. The Energy Department celebrates special emphasis observances regularly, inviting guest speakers to highlight how the agency's mission benefits from diversity and inclusion. The Department of Energy observes special days, weeks, and months as reflected in the below list of special program observances. Observances are held annually in compliance with Executive Order 11478, 29 CFR Part 1614.102(b)(4), joint Congressional Resolutions, Presidential Proclamations, and the Department's diversity and inclusion goals as

152

First Plasma Wave Observations at Uranus  

Science Journals Connector (OSTI)

...electrons. Various other plasma waves were also observed...plane crossing, the plasma wave instrument detected a large number of impulsive...BRIDGE, H.S., PLASMA OBSERVATIONS NEAR URANUS...FROM URANUS AT 0.5 MHZ, ASTROPHYSICAL JOURNAL...

D. A. GURNETT; W. S. KURTH; F. L. SCARF; R. L. POYNTER

1986-07-04T23:59:59.000Z

153

NASA to revamp Earth Observing System  

Science Journals Connector (OSTI)

NASA to revamp Earth Observing System ... EOS is the centerpiece of NASA's comprehensive Mission to Plant Earth, a program designed to observe simultaneously the atmosphere, oceans, and land—and their interactions—from space. ...

PAMELA ZURER

1991-10-14T23:59:59.000Z

154

MULTIWAVELENGTH OBSERVATIONS OF THE SS 433 JETS  

E-Print Network [OSTI]

We present observations of the SS 433 jets using the Chandra High Energy Transmission Grating Spectrometer with contemporaneous optical and Very Long Baseline Array observations. The X-ray and optical emission line regions ...

Canizares, Claude R.

155

Statistical Design for Adaptive Weather Observations  

Science Journals Connector (OSTI)

Suppose that one has the freedom to adapt the observational network by choosing the times and locations of observations. Which choices would yield the best analysis of the atmospheric state or the best subsequent forecast? Here, this problem of “...

L. Mark Berliner; Zhan-Qian Lu; Chris Snyder

1999-08-01T23:59:59.000Z

156

Satellite observations of the Agulhas Current system  

Science Journals Connector (OSTI)

...chlorophyll concentration| Satellite observations of the Agulhas...masses. | Laboratory for Satellite Oceanography, Southampton...Temperature Time Factors Weather 10.1098/rsta.2002.1107 Satellite observations of the Agulhas...

2003-01-01T23:59:59.000Z

157

Observation of Majorana fermions in ferromagnetic atomic chains on a superconductor  

Science Journals Connector (OSTI)

...in Pb has the lowest energy and gives contours...across the atomic chain (green). (E and F) Atomic...structure that has the lowest energy in the DFT calculations...for ab initio total-energy calculations using a plane-wave...calculation of bulk and surface Green functions . J. Phys. F...

Stevan Nadj-Perge; Ilya K. Drozdov; Jian Li; Hua Chen; Sangjun Jeon; Jungpil Seo; Allan H. MacDonald; B. Andrei Bernevig; Ali Yazdani

2014-10-31T23:59:59.000Z

158

Ash chemistry and mineralogy of an Indonesian coal during combustion: Part 1 Drop-tube observations  

Science Journals Connector (OSTI)

The paper reports a systematic and comprehensive laboratory investigation into the ash chemistry and mineralogical changes undergone by a low-rank Indonesian coal during combustion. Combustion experiments conducted in a drop-tube furnace included ash formation experiments (using cyclone and filter arrangement) under closely controlled conditions in the range of 1200–1400 °C and deposition experiments at a probe temperature of 750 °C. Tests conducted with raw coal, coal/additive mixtures and washed coal indicated significant changes in ash characteristics. Of the ash formation and deposit samples examined, the raw coal + bauxite showed the lowest glass content and high contents of corundum indicating low ash deposition propensities. When compared to the ash formation samples, the deposit samples showed even significantly lower glass contents and were enriched in quartz. With the exception of the raw coal + bauxite sample, all are characterized by high silica and iron and moderate aluminium contents. In contrast, the raw coal + bauxite sample have low silica and much higher alumina contents which is in agreement with XRD observations. QEMSCAN™ results showed that the ash particles are sparsely distributed suggesting lack of a deposit initiation layer. Experimental observations suggest that the use of raw coal with bauxite would appear to offer the best performance with respect to handling ash-related issues. Present findings are of practical significance to power utilities employing Indonesian coal as there is no comprehensive work reported in the literature on ash chemistry and mineralogy of such coals.

H.B. Vuthaluru; D. French

2008-01-01T23:59:59.000Z

159

Natural geometric representation for electron local observables  

SciTech Connect (OSTI)

An existence of the quartic identities for the electron local observables that define orthogonality relations for the 3D quantities quadratic in the electron observables is found. It is shown that the joint solution of the quartic and bilinear identities for the electron observables defines a unique natural representation of the observables. In the natural representation the vector type electron local observables have well-defined fixed positions with respect to a local 3D orthogonal reference frame. It is shown that the natural representation of the electron local observables can be defined in six different forms depending on a choice of the orthogonal unit vectors. The natural representation is used to determine the functional dependence of the electron wave functions on the local observables valid for any shape of the electron wave packet. -- Highlights: •Quartic identities that define the orthogonality relations for the electron local observables are found. •Joint solution of quartic and bilinear identities defines a unique natural representation of the electron local observables. •Functional dependence of the electron wave functions on the electron local observables is determined.

Minogin, V.G., E-mail: minogin@isan.troitsk.ru

2014-03-15T23:59:59.000Z

160

Automated Surface Observing System: Standby Power Options  

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

Automated Automated Surface Observing System Standby Options Power Automated Surface Observing System (ASOS) General System Description * Self contained group of sensors and data gathering equipment that produces an automated weather observation * Weather observations support aviation, climate data, non government weather operations, public consumption, etc. * Initial deployment began in 1991 and continued through 1997 * Located at 884 sites nationwide, normally at airports * System has two distinct subsystems: Field installed equipment (DCP & Sensor Group) and an indoor processor (ACU) with peripherals * Separate facility power for DCP & Sensors and ACU 1 * measure and collect data * Located on the airport * back up group for 10 minutes * Currently pl

Note: This page contains sample records for the topic "lowest observed adverse" 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

On the realization of Bell observables  

E-Print Network [OSTI]

We show how Bell observables on a bipartite quantum system can be obtained by local observables via a controlled-unitary transformation. For continuous variables this result holds for the Bell observable corresponding to the non-conventional heterodyne measurement on two radiation modes, which is connected through a 50-50 beam-splitter to two local observables given by single-mode homodyne measurements. A simple scheme for a controlled-unitary transformation of continuous variables is also presented, which needs only two squeezers, a parametric downconverter and two beam splitters.

Giacomo Mauro D'Ariano; Paolo Perinotti

2004-06-11T23:59:59.000Z

162

Complex photosensitivity observed in germanosilica planar waveguides  

Science Journals Connector (OSTI)

Photosensitive effects distinguished as type I and type IIA photosensitivity within optical fibers were observed in a much more pronounced form within germanosilica waveguides...

Bazylenko, M V; Moss, D; Canning, J

1998-01-01T23:59:59.000Z

163

First Observation of Plasmarons in Graphene  

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

First Observation of Plasmarons in Graphene Print An international team of scientists performing angle-resolved photoemission spectroscopy (ARPES) experiments at ALS Beamline 7.0.1...

164

ARM - Biomass Burning Observation Project (BBOP)  

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

March 2013 BNL BBOP Website Contacts Larry Kleinman, Lead Scientist Arthur Sedlacek Biomass Burning Observation Project (BBOP) Biomass Burning Plants, trees, grass, brush, and...

165

Self-potential observations during hydraulic fracturing  

E-Print Network [OSTI]

potential measurements during hydraulic fracturing of BunterSP response during hydraulic fracturing. Citation: Moore, J.observations during hydraulic fracturing, J. Geophys. Res. ,

Moore, J R; Glaser, Steven D

2007-01-01T23:59:59.000Z

166

Observation Wells (Ozkocak, 1985) | Open Energy Information  

Open Energy Info (EERE)

Observation Wells Activity Date Usefulness useful DOE-funding Unknown Notes Reinjection test wells can be used to obtain quite precise measurements of reservoir permeability....

167

Direct Observation of Aggregative Nanoparticle Growth: Kinetic...  

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

Aggregative Nanoparticle Growth: Kinetic Modeling of the Size Distribution and Growth Rate. Direct Observation of Aggregative Nanoparticle Growth: Kinetic Modeling of the Size...

168

An observational analysis of the conference  

E-Print Network [OSTI]

Through naturalistic observational procedures, this study examined the dynamics of individualized education program (IEP) conferences. Participants present, the nature and frequency of topics discussed, and the length ...

Turnbull, Ann P.; Goldstein, Sue; Strickland, Bonnie; Curry, Lynn

1980-01-01T23:59:59.000Z

169

Astronomy 362: Observational Astronomy University of Montana  

E-Print Network [OSTI]

Astronomy 362: Observational Astronomy University of Montana Fall 2010 T/Th 2:10 ­ 3:30 pm CHCB 227://www.physics.umt.edu/~nate/astr362/ Course Description Observational astronomy relies heavily on application of advanced technology astronomy is dominated by the CCD and related pixel array detectors: digital devices with unprecedented

Vonessen, Nikolaus

170

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

171

HISTORY OF WEATHER OBSERVATIONS MOUNT AUBURN, OHIO  

E-Print Network [OSTI]

HISTORY OF WEATHER OBSERVATIONS MOUNT AUBURN, OHIO 1861 - 1881 October 2004 Prepared By Glen Conner Center under the auspices of the Climate Database Modernization Program, NOAA's National Climatic Data;1 HISTORY OF WEATHER OBSERVATIONS MOUNT AUBURN, OHIO 1861-1881 Glen Conner Kentucky State Climatologist

Maynard, J. Barry

172

JAXA's Earth Observation Program Osamu Ochiai  

E-Print Network [OSTI]

Health Energy Climate Water 1 Japanese Main Activities of Earth Observation Weather MTSAT (JMA) Eco Satellite (ALOS) 3 #12;4 Disaster Monitoring (Earthquake in Haiti, Jan 2010) ALOS AVNIR-2 ALOS PALSAR Hyper-/Multi- Spectral Panchromatic X Y Z #12;6 Greenhouse Gases Observing Satellite (GOSAT) Current

173

H-alpha observations of zeta Tauri  

E-Print Network [OSTI]

We report H-alpha observations of zeta Tauri, taken between late 2000 and early 2006. Next to extending existing long-term montioring of the disk state of this star we report an intermediate timescale of about 69 days to be present in the V/R variations of the Halpha line. The observational data will be published together with this manuscript.

E. Pollmann; Th. Rivinius

2008-01-29T23:59:59.000Z

174

Spectroscopic observation of the rotational Doppler effect  

E-Print Network [OSTI]

We report on the first spectroscopic observation of the rotational Doppler shift associated with light beams carrying orbital angular momentum. The effect is evidenced as the broadening of a Hanle/EIT coherence resonance on Rb vapor when the two incident Laguerre-Gaussian laser beams have opposite topological charges. The observations closely agree with theoretical predictions.

S. Barreiro; J. W. R. Tabosa; H. Failache; A. Lezama

2006-07-26T23:59:59.000Z

175

Spectroscopic Observation of the Rotational Doppler Effect  

Science Journals Connector (OSTI)

We report on the first spectroscopic observation of the rotational Doppler shift associated with light beams carrying orbital angular momentum. The effect is evidenced as the broadening of a Hanle electromagnetically induced transparency coherence resonance on Rb vapor when the two incident Laguerre-Gaussian laser beams have opposite topological charges. The observations closely agree with theoretical predictions.

S. Barreiro; J. W. R. Tabosa; H. Failache; A. Lezama

2006-09-12T23:59:59.000Z

176

NATIONAL STRATEGY FOR CIVIL EARTH OBSERVATIONS  

E-Print Network [OSTI]

for providing satellite observations. The final step in this process will be the publication of a National Plan; Homeland and National Security; Science, Technology, Engineering, and Math (STEM) Education; ScienceNATIONAL STRATEGY FOR CIVIL EARTH OBSERVATIONS Executive Office of the President National Science

Schrijver, Karel

177

The metal abundance of circumnuclear star forming regions in early type spirals. Spectrophotometric observations  

E-Print Network [OSTI]

We have obtained long-slit observations in the optical and near infrared of 12 circumnuclear HII regions (CNSFR) in the early type spiral galaxies NGC 2903, NGC 3351 and NGC 3504 with the aim of deriving their chemical abundances. Only for one of the regions, the [SIII] $\\lambda$ 6312 \\AA was detected providing, together with the nebular [SIII] lines at $\\lambda\\lambda$ 9069, 9532 \\AA, a value of the electron temperature of T$_e$([SIII])= 8400$^{+ 4650}_{-1250}$K. A semi-empirical method for the derivation of abundances in the high metallicity regime is presented. We obtain abundances which are comparable to those found in high metallicity disc HII regions from direct measurements of electron temperatures and consistent with solar values within the errors. The region with the highest oxygen abundance is R3+R4 in NGC 3504, 12+log(O/H) = 8.85, about 1.5 solar if the solar oxygen abundance is set at the value derived by Asplund et al. (2005), 12+log(O/H)$_{\\odot}$ = 8.66$\\pm$0.05. Region R7 in NGC 3351 has the lowest oxygen abundance of the sample, about 0.6 times solar. In all the observed CNSFR the O/H abundance is dominated by the O$^+$/H$^+$ contribution, as is also the case for high metallicity disc HII regions. For our observed regions, however, also the S$^+$/S$^{2+}$ ratio is larger than one, contrary to what is found in high metallicity disc HII regions for which, in general, the sulphur abundances are dominated by S$^{2+}$/H$^+$...

Angeles I. Diaz; Elena Terlevich; Marcelo Castellanos; Guillermo F. Hagele

2007-09-08T23:59:59.000Z

178

VERY LARGE ARRAY OH ZEEMAN OBSERVATIONS OF THE STAR-FORMING REGION S88B  

SciTech Connect (OSTI)

We present observations of the Zeeman effect in OH thermal absorption main lines at 1665 and 1667 MHz taken with the Very Large Array toward the star-forming region S88B. The OH absorption profiles toward this source are complicated, and contain several blended components toward a number of positions. Almost all of the OH absorbing gas is located in the eastern parts of S88B, toward the compact continuum source S88B-2 and the eastern parts of the extended continuum source S88B-1. The ratio of 1665/1667 MHz OH line intensities indicates the gas is likely highly clumped, in agreement with other molecular emission line observations in the literature. S88-B appears to present a similar geometry to the well-known star-forming region M17, in that there is an edge-on eastward progression from ionized to molecular gas. The detected magnetic fields appear to mirror this eastward transition; we detected line-of-sight magnetic fields ranging from 90 to 400 {mu}G, with the lowest values of the field to the southwest of the S88B-1 continuum peak, and the highest values to its northeast. We used the detected fields to assess the importance of the magnetic field in S88B by a number of methods; we calculated the ratio of thermal to magnetic pressures, we calculated the critical field necessary to completely support the cloud against self-gravity and compared it to the observed field, and we calculated the ratio of mass to magnetic flux in terms of the critical value of this parameter. All these methods indicated that the magnetic field in S88B is dynamically significant, and should provide an important source of support against gravity. Moreover, the magnetic energy density is in approximate equipartition with the turbulent energy density, again pointing to the importance of the magnetic field in this region.

Sarma, A. P.; Eftimova, M. [Physics Department, DePaul University, 2219 N. Kenmore Ave., Byrne Hall 211, Chicago, IL 60614 (United States)] [Physics Department, DePaul University, 2219 N. Kenmore Ave., Byrne Hall 211, Chicago, IL 60614 (United States); Brogan, C. L. [National Radio Astronomy Observatory, Charlottesville, VA 22903 (United States)] [National Radio Astronomy Observatory, Charlottesville, VA 22903 (United States); Bourke, T. L. [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States)] [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States); Troland, T. H., E-mail: asarma@depaul.edu [Department of Physics and Astronomy, University of Kentucky, Lexington, KY 40506 (United States)

2013-04-10T23:59:59.000Z

179

Observed Cosmological Redshifts Support Contracting Accelerating Universe  

E-Print Network [OSTI]

The main argument that Universe is currently expanding is observed redshift increase by distance. However, this conclusion may not be correct, because cosmological redshift depends only on the scaling factors, the change in the size of the universe during the time of light propagation and is not related to the speed of observer or speed of the object emitting the light. An observer in expanding universe will measure the same redshift as observer in contracting universe with the same scaling. This was not taken into account in analysing the SN Ia data related to the universe acceleration. Possibility that universe may contract, but that the observed light is cosmologically redshifted allows for completely different set of cosmological parameters $\\Omega_M, \\Omega_{\\Lambda}$, including the solution $\\Omega_M=1, \\Omega_{\\Lambda}=0$. The contracting and in the same time accelerating universe explains observed deceleration and acceleration in SN Ia data, but also gives significantly larger value for the age of the universe, $t_0 = 24$ Gyr. This allows to reconsider classical cosmological models with $\\Lambda =0$. The contracting stage also may explain the observed association of high redshifted quasars to low redshifted galaxies.

Branislav Vlahovic

2012-07-02T23:59:59.000Z

180

Arctic Lower Troposphere Observed Structure (ALTOS)  

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

Lower Troposphere Observed Structure (ALTOS) Lower Troposphere Observed Structure (ALTOS) will raise and lower a heavily instrumented tethered balloon system at regular intervals in the lower 2 kilometers of the atmosphere at Oliktok Point. Data obtained during the ALTOS campaign will provide a statistically significant set of observed in situ cloud properties for validating retrieval algorithms and help scientists reduce the uncertainty in the radiative forcing and heating rates on hourly time scales. The data will also help researchers gain a better understanding of the driving processes that control climate changes and determine the state of the Arctic climate system. Collaborators Science Team: The Pennsylvania State University, Stratton

Note: This page contains sample records for the topic "lowest observed adverse" 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

Exponential smoothing with credibility weighted observations  

Science Journals Connector (OSTI)

Abstract Our interest is in time series data smoothing. We view this process as an aggregation of previously observed values. We first discuss the features desired of a good smoothing operator. We particularly note the conflict that exists between our desire for minimal variance and desire to use the freshest data. We describe a number of commonly used smoothing techniques, moving average and exponential smoothing. We then consider the extension of these methods to the case where the observations can have different credibility or importances. Specifically we develop an extension of the exponential smoothing method to the case where the observations can have different importance weights in the smoothing process.

Ronald R. Yager

2013-01-01T23:59:59.000Z

182

SPITZER OBSERVATIONS OF THE OLDEST WHITE DWARFS IN THE SOLAR NEIGHBORHOOD  

SciTech Connect (OSTI)

We present Spitzer 5-15 {mu}m spectroscopy of one cool white dwarf and 3.6-8 {mu}m photometry of 51 cool white dwarfs with T {sub eff} < 6000 K. The majority of our targets have accurate BVRIJHK photometry and trigonometric parallax measurements available, which enables us to perform a detailed model atmosphere analysis using their optical, near- and mid-infrared photometry with state-of-the-art model atmospheres. We demonstrate that the optical and infrared spectral energy distributions of cool white dwarfs are well reproduced by our grid of models. Our best-fit models are consistent with the observations within 5% in all filters except the IRAC 8 {mu}m band, which has the lowest signal-to-noise ratio photometry. Excluding the ultracool white dwarfs, none of the stars in our sample show significant mid-infrared flux deficits or excesses. The nondetection of mid-infrared excess flux around our {approx}2-9 Gyr old targets constrain the fraction of cool white dwarfs with warm debris disks to 0.8{sup +1.5} {sub -0.8} %.

Kilic, Mukremin [Smithsonian Astrophysical Observatory, 60 Garden Street, Cambridge, MA 02138 (United States); Kowalski, Piotr M. [Lehrstuhl fuer Theoretische Chemie, Ruhr-Universitaet Bochum, 44780 Bochum (Germany); Reach, William T. [Spitzer Science Center, California Institute of Technology, Pasadena, CA 91125 (United States); Von Hippel, Ted [Physics Department, Siena College, 515 Loudon Road, Loudonville, NY 12211 (United States)], E-mail: mkilic@cfa.harvard.edu

2009-05-10T23:59:59.000Z

183

First Direct Observation of Spinons and Holons  

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

First Direct Observation of Spinons and Holons Print First Direct Observation of Spinons and Holons Print Spin and charge are inseparable traits of an electron, but in one-dimensional solids, a 40-year-old theory predicts their separation into "collective" modes-as independent excitation quanta called spinons and holons. Angle-resolved photoemission spectroscopy (ARPES) should provide the most direct evidence of this spin-charge separation, as the single quasiparticle peak splits into a spinon-holon two-peak structure. However, despite extensive ARPES experiments, the unambiguous observation of the two-peak structure has remained elusive. Working at the ALS, a team of researchers from Korea, Japan, and the U.S. has now observed electron spin-charge separation in a one-dimensional solid. These results hold implications for future developments in several key areas of advanced technology, including high-temperature superconductors, nanowires, and spintronics.

184

First Direct Observation of Spinons and Holons  

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

First Direct Observation of Spinons and Holons Print First Direct Observation of Spinons and Holons Print Spin and charge are inseparable traits of an electron, but in one-dimensional solids, a 40-year-old theory predicts their separation into "collective" modes-as independent excitation quanta called spinons and holons. Angle-resolved photoemission spectroscopy (ARPES) should provide the most direct evidence of this spin-charge separation, as the single quasiparticle peak splits into a spinon-holon two-peak structure. However, despite extensive ARPES experiments, the unambiguous observation of the two-peak structure has remained elusive. Working at the ALS, a team of researchers from Korea, Japan, and the U.S. has now observed electron spin-charge separation in a one-dimensional solid. These results hold implications for future developments in several key areas of advanced technology, including high-temperature superconductors, nanowires, and spintronics.

185

First Observation of Plasmarons in Graphene  

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

First Observation of Plasmarons First Observation of Plasmarons in Graphene First Observation of Plasmarons in Graphene Print Wednesday, 30 June 2010 00:00 An international team of scientists performing angle-resolved photoemission spectroscopy (ARPES) experiments at ALS Beamline 7.0.1 have found that composite particles called plasmarons play a vital role in determining graphene's properties. A plasmaron consists of a charge carrier (electron or hole) coupled with a plasmon-an electron density wave. Although plasmarons were proposed theoretically in the late 1960s, and indirect evidence of them has been found, this work is the first observation of their distinct energy bands in graphene, or indeed in any material. The discovery may hasten the day when graphene can be used for "plasmonics" to build ultrafast computers-perhaps even room-temperature quantum computers-plus a wide range of other tools and applications.

186

First Plasma Wave Observations at Neptune  

Science Journals Connector (OSTI)

...revealed that Neptune has a large and complex magnetosphere...first observations of plasma waves and low-frequency...from lightning. Such large dispersions would require path lengths and plasma densities that are much larger than anything plausible...

D. A. Gurnett; W. S. Kurth; R. L. Poynter; L. J. Granroth; I. H. Cairns; W. M. Macek; S. L. Moses; F. V. Coroniti; C. F. Kennel; D. D. Barbosa

1989-12-15T23:59:59.000Z

187

PEP Classroom Observation Protocol Project # _______ District __________________________ School ________________________________________  

E-Print Network [OSTI]

PEP Classroom Observation Protocol Project # _______ District __________________________ School (mark all that apply) Demonstrate or confirm known concepts/procedures Demonstrate or confirm known concepts/procedures Explore ideas, test conjectures, look for patterns Explore ideas, test conjectures

Lee, Carl

188

Observations, measurements and semantic reference spaces  

Science Journals Connector (OSTI)

What is needed to enable communication about observation and measurement results in information systems? Information system ontologies make a certain conceptualization explicit and partially account for the meanings of symbols associated with this conceptualization. ... Keywords: Foundational ontology, measurement theory, semantics

Florian Probst

2008-01-01T23:59:59.000Z

189

Filtering Turbulent Sparsely Observed Geophysical Flows  

Science Journals Connector (OSTI)

Filtering sparsely turbulent signals from nature is a central problem of contemporary data assimilation. Here, sparsely observed turbulent signals from nature are generated by solutions of two-layer quasigeostrophic models with turbulent cascades ...

John Harlim; Andrew J. Majda

2010-04-01T23:59:59.000Z

190

Observations on Buoyant Convection in Reverse Osmosis  

Science Journals Connector (OSTI)

Observations on Buoyant Convection in Reverse Osmosis ... Buoyancy Effects in Dead-End Reverse Osmosis:? Visualization by Holographic Interferometry ... Buoyancy Effects in Dead-End Reverse Osmosis:? Visualization by Holographic Interferometry ...

Terry J. Hendricks; Jean F. Macquin; Forman A. Williams

1972-05-01T23:59:59.000Z

191

Observability of Neuronal Network Motifs (Invited Paper)  

E-Print Network [OSTI]

) the nodal dynamics (linear and nonlinear). We find that typical observability metrics for 3 neuron motifs model of a natural system has many useful applications in nonlinear dynamics from weather prediction

Brennan, Sean

192

First Direct Observation of Spinons and Holons  

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

First Direct Observation of Spinons and Holons Print First Direct Observation of Spinons and Holons Print Spin and charge are inseparable traits of an electron, but in one-dimensional solids, a 40-year-old theory predicts their separation into "collective" modes-as independent excitation quanta called spinons and holons. Angle-resolved photoemission spectroscopy (ARPES) should provide the most direct evidence of this spin-charge separation, as the single quasiparticle peak splits into a spinon-holon two-peak structure. However, despite extensive ARPES experiments, the unambiguous observation of the two-peak structure has remained elusive. Working at the ALS, a team of researchers from Korea, Japan, and the U.S. has now observed electron spin-charge separation in a one-dimensional solid. These results hold implications for future developments in several key areas of advanced technology, including high-temperature superconductors, nanowires, and spintronics.

193

MODELING OBSERVATIONAL CONSTRAINTS FOR DARK MATTER HALOS  

SciTech Connect (OSTI)

Observations show that the underlying rotation curves at intermediate radii in spiral and low-surface-brightness galaxies are nearly universal. Further, in these same galaxies, the product of the central density and the core radius ({rho}{sub 0} r{sub 0}) is constant. An empirically motivated model for dark matter halos that incorporates these observational constraints is presented and shown to be in accord with the observations. A model fit to the observations of the galaxy cluster A611 shows that {rho}{sub 0} r{sub 0} for the dark matter halo in this more massive structure is larger by a factor of {approx}20 over that assumed for the galaxies. The model maintains the successful Navarro-Frenk-White form in the outer regions, although the well-defined differences in the inner regions suggest that modifications to the standard cold dark matter picture are required.

Hartwick, F. D. A. [Department of Physics and Astronomy, University of Victoria, Victoria, BC V8W 3P6 (Canada)

2012-12-01T23:59:59.000Z

194

Some Observations on Competency Based Instruction  

E-Print Network [OSTI]

Abstract: This article summarizes the authors' observations derived over the course of 3 years of research and experimentation with competency based instruction. While the intent of this project has been the development of ...

Altman, Reuben; Meyen, Edward L.

1974-01-01T23:59:59.000Z

195

Observations of the PSR transverse instability  

SciTech Connect (OSTI)

A fast instability with beam loss is observed in the Los Alamos Proton Storage Ring (PSR) when the injected beam current exceeds thresholds, with both bunched and unbunched beams. Large coherent transverse oscillations occur before and during beam loss. Recent observations of the instability indicate that it is an e-p''-type instability, driven by coupled oscillations due to electrons trapped within the proton beam. 5 refs., 3 figs.

Colton, E. (USDOE, Washington, DC (USA)); Fitzgerald, D.; Hardek, T.; Macek, R.J.; Plum, M.A.; Thiessen, H.A.; Wang, T.S. (Los Alamos National Lab., NM (USA)); Neuffer, D. (Continuous Electron Beam Accelerator Facility, Newport News, VA (USA))

1991-01-01T23:59:59.000Z

196

How Can We Observe and Describe Chaos?  

E-Print Network [OSTI]

We propose a new approach to define chaos in dynamical systems from the point of view of Information Dynamics. Observation of chaos in reality depends upon how to observe it, for instance, how to take the scale in space and time. Therefore it is natural to abandon taking several mathematical limiting procedures. We take account of them, and chaos degree previously introduced is redefined in this paper.

Andrzej Kossakowski; Masanori Ohya; Yosio Togawa

2004-05-31T23:59:59.000Z

197

Experimental and Numerical Observations of Hydrate Reformation during Depressurization in a Core-Scale Reactor  

SciTech Connect (OSTI)

Gas hydrate has been predicted to reform around a wellbore during depressurization-based gas production from gas hydrate-bearing reservoirs. This process has an adverse effect on gas production rates and it requires time and sometimes special measures to resume gas flow to producing wells. Due to lack of applicable field data, laboratory scale experiments remain a valuable source of information to study hydrate reformation. In this work, we report laboratory experiments and complementary numerical simulations executed to investigate the hydrate reformation phenomenon. Gas production from a pressure vessel filled with hydrate-bearing sand was induced by depressurization with and without heat flux through the boundaries. Hydrate decomposition was monitored with a medical X-ray CT scanner and pressure and temperature measurements. CT images of the hydrate-bearing sample were processed to provide 3-dimensional data of heterogeneous porosity and phase saturations suitable for numerical simulations. In the experiments, gas hydrate reformation was observed only in the case of no-heat supply from surroundings, a finding consistent with numerical simulation. By allowing gas production on either side of the core, numerical simulations showed that initial hydrate distribution patterns affect gas distribution and flow inside the sample. This is a direct consequence of the heterogeneous pore network resulting in varying hydraulic properties of the hydrate-bearing sediment.

Seol, Yongkoo; Myshakin, Evgeniy

2011-01-01T23:59:59.000Z

198

Observation and modeling of the injection observed by THEMIS and LANL satellites during the 23  

E-Print Network [OSTI]

2007, the THEMIS constellation observed energetic particle injections and dipolarizations was leading in the constellation at 8.3 RE, also observed a clear injection signature, but the dipolarization; Kivelson et al., 1980]. The injections can be observed with or without energy dispersion, depending

California at Berkeley, University of

199

Predictions for Observing Protostellar Outflows with ALMA  

E-Print Network [OSTI]

Protostellar outflows provide a means to probe the accretion process of forming stars and their ability to inject energy into their surroundings. However, conclusions based on outflow observations depend upon the degree of accuracy with which their properties can be estimated. We examine the quality of Atacama Large Millimeter/submillimeter Array (ALMA) observations of protostellar outflows by producing synthetic $^{12}$CO(1-0) and $^{13}$CO(1-0) observations of numerical simulations. We use various ALMA configurations, observational parameters, and outflow inclinations to assess how accurately different assumptions and setups can recover underlying properties. We find that more compact arrays and longer observing times can improve the mass and momentum recovery by a factor of two. During the first $\\sim$0.3 Myr of evolution, $^{12}$CO(1-0) is optically thick, even for velocities $|v|\\ge 1$ km s$^{-1}$, and outflow mass is severely underestimated without an optical depth correction. Likewise, $^{13}$CO(1-0) i...

Bradshaw, C; Arce, H G

2015-01-01T23:59:59.000Z

200

Anatahan, Northern Mariana Islands- Reconnaissance Geological Observations  

Open Energy Info (EERE)

Anatahan, Northern Mariana Islands- Reconnaissance Geological Observations Anatahan, Northern Mariana Islands- Reconnaissance Geological Observations During And After The Volcanic Crisis Of Spring 1990, And Monitoring Prior To The May 2003 Eruption Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Anatahan, Northern Mariana Islands- Reconnaissance Geological Observations During And After The Volcanic Crisis Of Spring 1990, And Monitoring Prior To The May 2003 Eruption Details Activities (0) Areas (0) Regions (0) Abstract: Anatahan island is 9.5 km east-west by 3.5 km north-south and truncated by an elongate caldera 5 km east-west by 2.5 km north-south. A steep-walled pit crater ~1 km across and ~200 m deep occupies the eastern part of the caldera. The island is the summit region of a mostly submarine stratovolcano. The oldest subaerial rocks (stage 1) are exposed low on the

Note: This page contains sample records for the topic "lowest observed adverse" 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

Observing AAPI Heritage Month | Department of Energy  

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

Observing AAPI Heritage Month Observing AAPI Heritage Month Observing AAPI Heritage Month May 1, 2012 - 4:42pm Addthis Bill Valdez Bill Valdez Principal Deputy Director What are the key facts? President Obama has also appointed a historic number of highly qualified Asian Americans and Pacific Islanders to senior positions in his Administration Throughout May,the White House Initiative on Asian Americans and Pacific Islanders will be sharing the many ways in which the Obama Administration has helped the Asian American and Pacific Islander community. White House Initiative on Asian Americans and Pacific Islanders Editor's Note: This blog originally appeared on the White House Blog, and is authored by Chris Lu, Assistant to the President and Cabinet Secretary. He is also the Co-Chair of the White House Initiative on Asian

202

First Observation of Plasmarons in Graphene  

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

First Observation of Plasmarons in Graphene Print First Observation of Plasmarons in Graphene Print An international team of scientists performing angle-resolved photoemission spectroscopy (ARPES) experiments at ALS Beamline 7.0.1 have found that composite particles called plasmarons play a vital role in determining graphene's properties. A plasmaron consists of a charge carrier (electron or hole) coupled with a plasmon-an electron density wave. Although plasmarons were proposed theoretically in the late 1960s, and indirect evidence of them has been found, this work is the first observation of their distinct energy bands in graphene, or indeed in any material. The discovery may hasten the day when graphene can be used for "plasmonics" to build ultrafast computers-perhaps even room-temperature quantum computers-plus a wide range of other tools and applications.

203

First Observation of Plasmarons in Graphene  

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

First Observation of Plasmarons in Graphene Print First Observation of Plasmarons in Graphene Print An international team of scientists performing angle-resolved photoemission spectroscopy (ARPES) experiments at ALS Beamline 7.0.1 have found that composite particles called plasmarons play a vital role in determining graphene's properties. A plasmaron consists of a charge carrier (electron or hole) coupled with a plasmon-an electron density wave. Although plasmarons were proposed theoretically in the late 1960s, and indirect evidence of them has been found, this work is the first observation of their distinct energy bands in graphene, or indeed in any material. The discovery may hasten the day when graphene can be used for "plasmonics" to build ultrafast computers-perhaps even room-temperature quantum computers-plus a wide range of other tools and applications.

204

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

205

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

206

Sources of Gravitational Waves: Theory and Observations  

E-Print Network [OSTI]

Gravitational-wave astronomy will soon become a new tool for observing the Universe. Detecting and interpreting gravitational waves will require deep theoretical insights into astronomical sources. The past three decades have seen remarkable progress in analytical and numerical computations of the source dynamics, development of search algorithms and analysis of data from detectors with unprecedented sensitivity. This Chapter is devoted to examine the advances and future challenges in understanding the dynamics of binary and isolated compact-object systems, expected cosmological sources, their amplitudes and rates, and highlights of results from gravitational-wave observations. All of this is a testament to the readiness of the community to open a new window for observing the cosmos, a century after gravitational waves were first predicted by Albert Einstein.

Buonanno, Alessandra

2014-01-01T23:59:59.000Z

207

Sources of Gravitational Waves: Theory and Observations  

E-Print Network [OSTI]

Gravitational-wave astronomy will soon become a new tool for observing the Universe. Detecting and interpreting gravitational waves will require deep theoretical insights into astronomical sources. The past three decades have seen remarkable progress in analytical and numerical computations of the source dynamics, development of search algorithms and analysis of data from detectors with unprecedented sensitivity. This Chapter is devoted to examine the advances and future challenges in understanding the dynamics of binary and isolated compact-object systems, expected cosmological sources, their amplitudes and rates, and highlights of results from gravitational-wave observations. All of this is a testament to the readiness of the community to open a new window for observing the cosmos, a century after gravitational waves were first predicted by Albert Einstein.

Alessandra Buonanno; B. S. Sathyaprakash

2014-10-28T23:59:59.000Z

208

Observations of the Askaryan Effect in Ice  

SciTech Connect (OSTI)

We report on the first observations of the Askaryan effect in ice: coherent impulsive radio Cherenkov radiation from the charge asymmetry in an electromagnetic (EM) shower. Such radiation has been observed in silica sand and rock salt, but this is the first direct observation from an EM shower in ice. These measurements are important since the majority of experiments to date that rely on the effect for ultra-high energy neutrino detection are being performed using ice as the target medium. As part of the complete validation process for the Antarctic Impulsive Transient Antenna (ANITA) experiment, we performed an experiment at the Stanford Linear Accelerator Center (SLAC) in June 2006 using a 7.5 metric ton ice target, yielding results fully consistent with theoretical expectations.

Gorham, P.W.

2007-01-16T23:59:59.000Z

209

First Observation of Plasmarons in Graphene  

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

First Observation of Plasmarons in Graphene Print First Observation of Plasmarons in Graphene Print An international team of scientists performing angle-resolved photoemission spectroscopy (ARPES) experiments at ALS Beamline 7.0.1 have found that composite particles called plasmarons play a vital role in determining graphene's properties. A plasmaron consists of a charge carrier (electron or hole) coupled with a plasmon-an electron density wave. Although plasmarons were proposed theoretically in the late 1960s, and indirect evidence of them has been found, this work is the first observation of their distinct energy bands in graphene, or indeed in any material. The discovery may hasten the day when graphene can be used for "plasmonics" to build ultrafast computers-perhaps even room-temperature quantum computers-plus a wide range of other tools and applications.

210

First Observation of Plasmarons in Graphene  

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

First Observation of Plasmarons in Graphene Print First Observation of Plasmarons in Graphene Print An international team of scientists performing angle-resolved photoemission spectroscopy (ARPES) experiments at ALS Beamline 7.0.1 have found that composite particles called plasmarons play a vital role in determining graphene's properties. A plasmaron consists of a charge carrier (electron or hole) coupled with a plasmon-an electron density wave. Although plasmarons were proposed theoretically in the late 1960s, and indirect evidence of them has been found, this work is the first observation of their distinct energy bands in graphene, or indeed in any material. The discovery may hasten the day when graphene can be used for "plasmonics" to build ultrafast computers-perhaps even room-temperature quantum computers-plus a wide range of other tools and applications.

211

Microscopic observations on a kinetic Ising model  

Science Journals Connector (OSTI)

We comment on the practical realization and physical relevance of a k i n e t i cIsing model which has played an important role during the last decade as a guide for real experiments and for the development of theory. We stress the possibility of performing m i c r o s c o p i c observations during the computer evolution of the model system. This is illustrated by discussing the observed behavior of some general concepts of physics such as energy specific heat and metastable states.

J. Marro; R. Toral

1986-01-01T23:59:59.000Z

212

Black Holes: from Speculations to Observations  

E-Print Network [OSTI]

This paper provides a brief review of the history of our understanding and knowledge of black holes. Starting with early speculations on ``dark stars'' I discuss the Schwarzschild "black hole" solution to Einstein's field equations and the development of its interpretation from "physically meaningless" to describing the perhaps most exotic and yet "most perfect" macroscopic object in the universe. I describe different astrophysical black hole populations and discuss some of their observational evidence. Finally I close by speculating about future observations of black holes with the new generation of gravitational wave detectors.

Thomas W. Baumgarte

2006-04-13T23:59:59.000Z

213

TABLE OF CONTENTS SECTION A: PREINTERVIEW OBSERVATION  

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

TABLE OF CONTENTS TABLE OF CONTENTS SECTION A: PREINTERVIEW OBSERVATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 SECTION B: HOUSING TYPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 SECTION C: HOME HEATING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 SECTION D: AIR CONDITIONING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 SECTION E: WATER HEATING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 SECTION F: LIGHTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 SECTION G: APPLIANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Cooking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Refrigerators and Freezers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

214

AN INTEGRATED GLOBAL OBSERVING SYSTEM FOR SEA  

E-Print Network [OSTI]

) transition of the research results into sustained operations; and 3) management ap- plications in the U, and effective data integration and dissemination. Efficient management of sustained observing sys- tem, and the management and strategic planning applications at CPO. The final discussion contains some concluding remarks

215

The Observer Algorithm for Visibility Approximation  

E-Print Network [OSTI]

other algorithms do. We test this algorithm in several settings: rural, mountainous and urban areasThe Observer Algorithm for Visibility Approximation Per-Magnus OLSSON a and Patrick DOHERTY present a novel algorithm for visibility approximation that is sub- stantially faster than ray casting

Doherty, Patrick

216

Negative energy seen by accelerated observers  

Science Journals Connector (OSTI)

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

L. H. Ford and Thomas A. Roman

2013-04-01T23:59:59.000Z

217

Direct Observation of Born-Oppenheimer Approximation  

E-Print Network [OSTI]

Direct Observation of Born-Oppenheimer Approximation Breakdown in Carbon Nanotubes Adam W of the theoretically predicted breakdown of the Born-Oppenheimer approximation in individual single-walled carbon nanotubes. The Born-Oppenheimer (BO) or adiabatic approximation is widely used to simplify the very complex

Cronin, Steve

218

First Plasma Wave Observations at Uranus  

Science Journals Connector (OSTI)

...ring plane crossing, the plasma wave instrument detected...kilometers. BRIDGE, H.S., PLASMA OBSERVATIONS NEAR URANUS...RADIO-EMISSION FROM URANUS AT 0.5 MHZ, ASTROPHYSICAL JOURNAL...SATURN BY THE VOYAGER PLASMA-WAVE INSTRUMENT, ICARUS...position where the 97.2-kHz radiation was blocked...

D. A. GURNETT; W. S. KURTH; F. L. SCARF; R. L. POYNTER

1986-07-04T23:59:59.000Z

219

Energy flow observables in hadronic collisions  

E-Print Network [OSTI]

We present recent QCD calculations of energy flow distributions associated with the production of jets at wide rapidity separations in high-energy hadron collisions, and discuss the role of these observables to analyze contributions from parton showering and from multiple parton collisions.

F. Hautmann

2012-05-24T23:59:59.000Z

220

OBSERVATIONS ON FISHES AND OTHER BIOTA OF  

E-Print Network [OSTI]

2.0 Sunrimary 27 References 29 FIGURES No. Page 1. East Lagoon, Galveston, Texas iv 2. Mouth- ber 1953 - May 1958 27 111 #12;GULF I NAUTICAL MILE MEXICO Figure l.--East Lagoon, Galveston, Texas344 OBSERVATIONS ON FISHES AND OTHER BIOTA OF EAST LAGOON, GALVESTON ISLAND Marino Biological

Note: This page contains sample records for the topic "lowest observed adverse" 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

observation at CDF Dmitry Litvintsev (Fermilab CD)  

E-Print Network [OSTI]

b observation at CDF Dmitry Litvintsev (Fermilab CD) for CDF June 15, 2007 Special seminar #12 and plans q Conclusion June 15, 2007 Dmitry Litvintsev, Fermilab, CDF 2 #12;Introduction Happy to show, Fermilab, CDF 3 #12;Source of data: CDF II 3 ¡ ¡ ¢ £ ¤ total 2 ¢ ¡ ¢ £ ¤ on tape Analysis uses data

Quigg, Chris

222

Satellite Observations towards the Agriculture applications  

E-Print Network [OSTI]

Satellite Observations towards the Agriculture applications Osamu Ochiai Japan Aerospace Weather (temperature, etc.) #12;Soil Moisture Drought monitoring in North-East Argentina by Aqua with other satellite data Land vegetation, ocean chlorophyll-a, and primary production Sea and Land surface

223

Hadley Cell Widening: Model Simulations versus Observations  

Science Journals Connector (OSTI)

Observations show that the Hadley cell has widened by about 2°–5° since 1979. This widening and the concomitant poleward displacement of the subtropical dry zones may be accompanied by large-scale drying near 30°N and 30°S. Such drying poses a ...

Celeste M. Johanson; Qiang Fu

2009-05-01T23:59:59.000Z

224

8) Stratospheric equatorial variability a) Observations  

E-Print Network [OSTI]

speed. Phase lines inclined eastward when altitude increases indicating upward propation Signal field) Westward phase propagation but eastward group propagation Phase lines inclined westward Signal;5 Satellites wind observations (UARS, Swinbak et Ortland 1997) The Quasi-Biennial Oscillation (low stratosphere

Lott, Francois

225

Timed Control with Observation Based and Stuttering Invariant Strategies  

E-Print Network [OSTI]

Timed Control with Observation Based and Stuttering Invariant Strategies Franck Cassez1- tion of observations and must be stuttering invariant in the sense that repeated identical observations

Paris-Sud XI, Université de

226

Adverse Health Effects of Air Pollution  

E-Print Network [OSTI]

on clean air: ? 2007: Encouraging energy efficiencies, no more coal plants ? 2009: Retrofitting old coal plants and old diesel engines ? 2011: Disclosure of ?fracking? fluids injected below ground ? Alliance with Texas Business for Clean Air ? Financed...

Haley, R. W.

2011-01-01T23:59:59.000Z

227

Adverse Diversity Analysis Guidance | Department of Energy  

Office of Environmental Management (EM)

Country, Pennsylvania, Housing Market Analysis Recent Research to Address Technical Barriers to Increased Use of Biodiesel Health and Productivity Questionnaire (HPQ) Survey Report...

228

Rapid Scan AERI Observations: Benefits and Analysis  

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

Rapid Scan AERI Observations: Benefits and Analysis Rapid Scan AERI Observations: Benefits and Analysis W. F. Feltz, D. D. Turner, R. O. Knuteson, and R. G. Dedecker Space Science and Engineering Center Cooperative Institute of Mesoscale Meteorological Studies University of Wisconsin-Madison Madison, Wisconsin D. D. Turner Pacific Northwest National Laboratory Richland, Washington Introduction The U.S. Department of Energy's (DOE's) Atmospheric Radiation Measurement (ARM) Program has funded the development of the atmospheric emitted radiance interferometer (AERI). This has led to a hardened, autonomous system that measures downwelling infrared (IR) radiance at high-spectral resolution. Seven AERI systems have been deployed around the world as part of the ARM Program. The initial goal of these instruments was to characterize the clear-sky IR emission from the atmosphere,

229

Are We Observing Violations of Lorentz Symmetry?  

E-Print Network [OSTI]

Recent observations of ultra high energy cosmic rays and gamma rays suggest that there are small violations of Lorentz symmetry. If there were no such violations, then the GZK cut off would hold and cosmic rays with energy $\\sim 10^{20}eV$ or higher would not be reaching the earth. However some such events seem to have been observed. This has lead to phenomenological models in which there is a small violation of the Lorentz symmetry or the velocity of light. However recent Quantum Gravity and String Theory approaches which no longer consider a differentiable spacetime manifold already predict such violations. Similarly there are other theoretical reasons which also point to this. We briefly discuss the various possibilities.

B. G. Sidharth

2006-02-20T23:59:59.000Z

230

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

231

Fermi Observations of Gamma-ray Bursts  

SciTech Connect (OSTI)

The gamma-ray emission mechanism of Gamma-ray bursts (GRBs) are still unknown. Fermi Gamma-ray Space Telescope successfully detected high-energy (> 100 MeV) emission from 17 GRBs since its launch. Fermi revealed the distinct temporal behaviors and extra spectral component from high-energy emission. These new observational results are driving many theoretical implications, such as leptonic, hadronic and afterglow origin. The highest energy photon detected by Fermi gives a constraint on the bulk Lorentz factor of the ultra-relativistic jets of GRBs. The impact of the Fermi GRB observations extends not only to the GRB-related issues but also to the outside GRB physics, such as quantum gravity and model of the extra galactic background light.

Ohno, Masanori [Institute of Space and Astronautical Science, JAXA, 3-1-1 Yoshinodai, Chuo-ku, Sagamihara, Kanagawa 252-5210 (Japan)

2010-10-15T23:59:59.000Z

232

First direct observation of muon antineutrino disappearance  

DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

This letter reports the first direct observation of muon antineutrino disappearance. The MINOS experiment has taken data with an accelerator beam optimized for ??? production, accumulating an exposure of 1.71 x 1020 protons on target. In the Far Detector, 97 charged current ??? events are observed. The no-oscillation hypothesis predicts 156 events and is excluded at 6.3?. The best fit to oscillation yields |?m?2| = (3.36-0.40 +0.46(stat.) ± 0.06(syst.)) x 10-3 eV2, sin2(2 ??) = 0.86-0.12+0.11 (stat.) ± 0.01(syst.). The MINOS ?? and ??? measurements are consistent at the 2.0% confidence level, assuming identical underlying oscillation parameters.

Adamson, P [Fermilab; Andreopoulos, C [Rutherford; Auty, D J [Sussex U.; Ayres, D S [Argonne; Backhouse, C [Oxford U.; Barr, G [Oxford U.; Bishai, M [Brookhaven; Blake, A [Cambridge U.; Bock, G J [Fermilab; Boehnlein, D J [/Fermilab; Bogert, D [Fermilab; Harvard U., Phys. Dept.

2011-07-05T23:59:59.000Z

233

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

234

Visual Observability of the Cassiopeia A Supernova  

E-Print Network [OSTI]

It is generally believed that the explosion which gave birth to the Cassiopeia A supernova remmant resulted from core collapse of a hydrogen-deficient star. A progenitor that has lost all its hydrogen envelope and part of its helium envelope would lead to an explosion with the optical properties of a Type Ic supernova. There is evidence, if not general agreement, that Flamsteed observed the Cas A supernova as a sixth magnitude object in August, 1680. If an explosion with a typical SNIc light curve at the position and distance of Cas A attained maximum luminosity during the winter of 1679-1680, it would at that time have been poorly situated for visual observation, as its upper culmination would have taken place during daylight, while in August, between 170-200 days after peak luminosity, it would have been a sixth magnitude star.

J. A. Morgan

2007-10-11T23:59:59.000Z

235

Surface Meteorological Observation System (SMOS) Handbook  

SciTech Connect (OSTI)

The Surface Meteorological Observation System (SMOS) mostly uses conventional in situ sensors to obtain 1-minute, 30-minute, and 1440-minute (daily) averages of surface wind speed, wind direction, air temperature, relative humidity (RH), barometric pressure, and precipitation at the Central Facility and many of the extended facilities of the Southern Great Plains (SGP) climate research site. The SMOSs are not calibrated as systems. The sensors and the data logger (which includes the analog-to-digital converter, or A/D) are calibrated separately. All systems are installed using components that have a current calibration. SMOSs have not been installed at extended facilities located within about 10 km of existing surface meteorological stations, such as those of the Oklahoma Mesonet. The Surface Meteorological Observation Systems are used to create climatology for each particular location, and to verify the output of numerical weather forecast and other model output. They are also used to “ground-truth” other remote sensing equipment.

Ritsche, MT

2008-03-01T23:59:59.000Z

236

Direct observation of time reversal violation  

SciTech Connect (OSTI)

A direct evidence for Time Reversal Violation (TRV) means an experiment that, considered by itself, clearly shows TRV independent of, and unconnected to, the results for CP Violation. No existing result before the recent BABAR experiment with entangled neutral B mesons had demonstrated TRV in this sense. There is a unique opportunity for a search of TRV with unstable particles thanks to the Einstein-Podolsky-Rosen (EPR) Entanglement between the two neutral mesons in B, and PHI, Factories. The two quantum effects of the first decay as a filtering measurement and the transfer of information to the still living partner allow performing a genuine TRV asymmetry with the exchange of 'in' and 'out' states. With four independent TRV asymmetries, BABAR observes a large deviation of T-invariance with a statistical significance of 14 standard deviations, far more than needed to declare the result as a discovery. This is the first direct observation of TRV in the time evolution of any system.

Bernabeu, J. [Department of Theoretical Physics, University of Valencia, and IFIC, Joint Centre Univ. Valencia-CSIC (Spain)

2013-06-12T23:59:59.000Z

237

Electron Cloud observation in the LHC  

E-Print Network [OSTI]

Operation of LHC with bunch trains at different spacings has revealed the formation of an electron cloud inside the machine. The main observations of electron cloud build up are the pressure rise measured at the vacuum gauges in the warm regions, as well as the increase of the beam screen temperature in the cold regions due to an additional heat load. The effects of the electron cloud were also visible as instability and emittance growth affecting the last bunches of longer trains, which could be improved running with higher chromaticity or larger transverse emittances. A summary of the 2010 and 2011 observations and measurements and a comparison with models will be presented. The efficiency of scrubbing to improve the machine running performance will be briefly discussed.

Rumolo, G; Baglin, V; Bartosik, H; Biancacci, N; Baudrenghien, P; Bregliozzi, G; Chiggiato, P; Claudet, S; De Maria, R; Esteban-Muller, J; Favier, M; Hansen, C; Höfle, W; Jimenez, J M; Kain, V; Lanza, G; Li, K S B; Maury Cuna, G H I; Métral, E; Papotti, G; Pieloni, T; Roncarolo, F; Salvant, B; Shaposhnikova, E N; Steinhagen, R J; Tavian, L J; Valuch, D; Venturini Delsolaro, W; Zimmermann, F; Iriso, U; Dominguez, O; Koukovini-Platia, E; Mounet, N; Zannini, C; Bhat, C M

2011-01-01T23:59:59.000Z

238

Self-potential observations during hydraulic fracturing  

SciTech Connect (OSTI)

The self-potential (SP) response during hydraulic fracturing of intact Sierra granite was investigated in the laboratory. Excellent correlation of pressure drop and SP suggests that the SP response is created primarily by electrokinetic coupling. For low pressures, the variation of SP with pressure drop is linear, indicating a constant coupling coefficient (Cc) of -200 mV/MPa. However for pressure drops >2 MPa, the magnitude of the Cc increases by 80% in an exponential trend. This increasing Cc is related to increasing permeability at high pore pressures caused by dilatancy of micro-cracks, and is explained by a decrease in the hydraulic tortuosity. Resistivity measurements reveal a decrease of 2% prior to hydraulic fracturing and a decrease of {approx}35% after fracturing. An asymmetric spatial SP response created by injectate diffusion into dilatant zones is observed prior to hydraulic fracturing, and in most cases this SP variation revealed the impending crack geometry seconds before failure. At rupture, injectate rushes into the new fracture area where the zeta potential is different than in the rock porosity, and an anomalous SP spike is observed. After fracturing, the spatial SP distribution reveals the direction of fracture propagation. Finally, during tensile cracking in a point load device with no water flow, a SP spike is observed that is caused by contact electrification. However, the time constant of this event is much less than that for transients observed during hydraulic fracturing, suggesting that SP created solely from material fracture does not contribute to the SP response during hydraulic fracturing.

Moore, Jeffrey R.; Glaser, Steven D.

2007-09-13T23:59:59.000Z

239

Recent observational progress in AM CVn binaries  

E-Print Network [OSTI]

We present the results of some recent research on AM CVn systems. We present: X-ray/UV observations made using XMM-Newton; the X-ray grating spectrum of RX J1914+24; preliminary results of a search for radio emission from AM CVn binaries, and discuss the strategy and first results of the RATS project, whose main aim is to discover AM CVn systems.

G. Ramsay; C. Brocksopp; P. Groot; P. Hakala; H. Lehto; T. Marsh; R. Napiwotzki; G. Nelemans; S. Potter; B. Slee; D. Steeghs; K. Wu

2006-10-12T23:59:59.000Z

240

A stratospheric balloon observing facility: Milo Base  

Science Journals Connector (OSTI)

In a favourable geographic position (38°01?N 12°35?E) Milo Base guarantees long duration flights on Mediterrean Sea (at least 20 hours) at atmosphera limit (40 km of altitude) from Sicily to Spain. With a low X ray background it represents a special point for astrophysical observation. Programs for the next years collaboration feasibility work facilities and obtained results will be presented and discussed.

M. C. Falvella

1996-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lowest observed adverse" 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

RHESSI and SphinX Common Observations  

E-Print Network [OSTI]

) energy range: 3-8 keV (16 energy bands, E=0.3 keV) #12;Fluxes comparison SphinX DRM conversion factors possible. In 2009 we had three instruments that observed the Sun in similar energy band: SphinX, RHESSI, design & manufacture - energy range: 1.2 ­ 15 keV - time resolution: ~0.00001 s - sensitivity: 100x

Mrozek, Tomasz

242

Observational Approach to Chromium Site Remediation - 13266  

SciTech Connect (OSTI)

Production reactors at the U.S. Department of Energy's (DOE) Hanford Site in Richland, Washington, required massive quantities of water for reactor cooling and material processing. To reduce corrosion and the build-up of scale in pipelines and cooling systems, sodium dichromate was added to the water feedstock. Spills and other releases at the makeup facilities, as well as leaks from miles of pipelines, have led to numerous areas with chromium-contaminated soil and groundwater, threatening fish populations in the nearby Columbia River. Pump-and-treat systems have been installed to remove chromium from the groundwater, but significant contamination remain in the soil column and poses a continuing threat to groundwater and the Columbia River. Washington Closure Hanford, DOE, and regulators are working on a team approach that implements the observational approach, a strategy for effectively dealing with the uncertainties inherent in subsurface conditions. Remediation of large, complex waste sites at a federal facility is a daunting effort. It is particularly difficult to perform the work in an environment of rapid response to changing field and contamination conditions. The observational approach, developed by geotechnical engineers to accommodate the inherent uncertainties in subsurface conditions, is a powerful and appropriate method for site remediation. It offers a structured means of quickly moving into full remediation and responding to the variations and changing conditions inherent in waste site cleanups. A number of significant factors, however, complicate the application of the observational approach for chromium site remediation. Conceptual models of contamination and site conditions are difficult to establish and get consensus on. Mid-stream revisions to the design of large excavations are time-consuming and costly. And regulatory constraints and contract performance incentives can be impediments to the flexible responses required under the observational approach. The WCH project team is working closely with stakeholders and taking a number of steps to meet these challenges in a continuing effort to remediate chromium contaminated soil in an efficient and cost-effective manner. (authors)

Scott Myers, R. [Washington Closure Hanford, 2620 Fermi, Richland, Washington 99354 (United States)] [Washington Closure Hanford, 2620 Fermi, Richland, Washington 99354 (United States)

2013-07-01T23:59:59.000Z

243

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

244

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

245

Extreme commutative quantum observables are sharp  

E-Print Network [OSTI]

It is well known that, in the description of quantum observables, positive operator valued measures (POVMs) generalize projection valued measures (PVMs) and they also turn out be more optimal in many tasks. We show that a commutative POVM is an extreme point in the convex set of all POVMs if and only if it is a PVM. This results implies that non-commutativity is a necessary ingredient to overcome the limitations of PVMs.

Teiko Heinosaari; Juha-Pekka Pellonpää

2011-06-21T23:59:59.000Z

246

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

247

X-ray Observations of Mrk 231  

E-Print Network [OSTI]

This paper presents new X-ray observations of Mrk 231, an active galaxy of particular interest due to its large infrared luminosity and the presence of several blueshifted broad absorption line (BAL) systems, a phenomenon observed in a small fraction of QSOs. A ROSAT HRI image of Mrk 231 is presented, this shows an extended region of soft X-ray emission, covering several tens of kpc, consistent with the extent of the host galaxy. An ASCA observation of Mrk 231 is also presented. Hard X-rays are detected but the data show no significant variability in X-ray flux. The hard X-ray continuum is heavily attenuated and X-ray column estimates range from ~ 2 x 10^{22} - 10^{23} cm^{-2} depending on whether the material is assumed to be neutral or ionized, and on the model assumed for the extended X-ray component. These ASCA data provide only the second hard X-ray spectrum of a BAL AGN presented to date. The broad-band spectral-energy-distribution of the source is discussed. While Mrk 231 is X-ray weak compared to Seyfert 1 galaxies, it has an optical-to-X-ray spectrum typical of a QSO.

T. J. Turner

1998-08-10T23:59:59.000Z

248

Using Monte Carlo ray tracing simulations to model the quantum harmonic oscillator modes observed in uranium nitride  

SciTech Connect (OSTI)

Recently an extended series of equally spaced vibrational modes was observed in uranium nitride (UN) by performing neutron spectroscopy measurements using the ARCS and SEQUOIA time-of- flight chopper spectrometers [A.A. Aczel et al, Nature Communications 3, 1124 (2012)]. These modes are well described by 3D isotropic quantum harmonic oscillator (QHO) behavior of the nitrogen atoms, but there are additional contributions to the scattering that complicate the measured response. In an effort to better characterize the observed neutron scattering spectrum of UN, we have performed Monte Carlo ray tracing simulations of the ARCS and SEQUOIA experiments with various sample kernels, accounting for the nitrogen QHO scattering, contributions that arise from the acoustic portion of the partial phonon density of states (PDOS), and multiple scattering. These simulations demonstrate that the U and N motions can be treated independently, and show that multiple scattering contributes an approximate Q-independent background to the spectrum at the oscillator mode positions. Temperature dependent studies of the lowest few oscillator modes have also been made with SEQUOIA, and our simulations indicate that the T-dependence of the scattering from these modes is strongly influenced by the uranium lattice.

Lin, J. Y. Y. [California Institute of Technology, Pasadena] [California Institute of Technology, Pasadena; Aczel, Adam A [ORNL] [ORNL; Abernathy, Douglas L [ORNL] [ORNL; Nagler, Stephen E [ORNL] [ORNL; Buyers, W. J. L. [National Research Council of Canada] [National Research Council of Canada; Granroth, Garrett E [ORNL] [ORNL

2014-01-01T23:59:59.000Z

249

Pair-Production Supernovae: Theory and Observation  

E-Print Network [OSTI]

I review the physical properties of pair-production supernovae (PPSNe) as well as the prospects for them to be constrained observationally. In very massive (140-260 solar mass) stars, much of the pressure support comes from the radiation field, meaning that they are loosely bound, with an adiabatic coefficient that is close to the minimum stable value. Near the end of C/O burning, the central temperature increases to the point that photons begin to be converted into electron-positron pairs, softening gamma below this critical value. The result is a runaway collapse, followed by explosive burning that completely obliterates the star. While these explosions can be up to 100 times more energetic that core collapse and Type Ia supernovae, their peak luminosities are only slightly greater. However, due both to copious Ni-56 production and hydrogen recombination, they are brighter much longer, and remain observable for ~ 1 year. Since metal enrichment is a local process, PPSNe should occur in pockets of metal-free gas over a broad range of redshifts, greatly enhancing their detectability, and distributing their nucleosyntehtic products about the Milky Way. This means that measurements of the abundances of metal-free stars should be thought of as directly constraining these objects. It also means that ongoing supernova searches, already provide weak constraints for PPSN models. A survey with the NIRCam instrument on JWST, on the other hand, would be able to extend these limits to z ~ 10. Observing a 0.3 deg^2 patch of sky for one week per year for three consecutive years, such a program would either detect or rule out the existence of these remarkable objects.

Evan Scannapieco

2006-09-07T23:59:59.000Z

250

MULTIWAVELENGTH OBSERVATIONS OF THE SS 433 JETS  

SciTech Connect (OSTI)

We present observations of the SS 433 jets using the Chandra High Energy Transmission Grating Spectrometer with contemporaneous optical and Very Long Baseline Array observations. The X-ray and optical emission line regions are found to be related but not coincident as the optical line emission persists for days while the X-ray emission lines fade in less than 5000 s. The line Doppler shifts from the optical and X-ray lines match well, indicating that they are less than 3 × 10{sup 14} cm apart. The jet Doppler shifts show aperiodic variations that could result from shocks in interactions with the local environment. These perturbations are consistent with a change in jet direction but not jet speed. The proper motions of the radio knots match the kinematic model only if the distance to SS 433 is 4.5 ± 0.2 kpc. Observations during eclipse show that the occulted emission is very hard, seen only above 2 keV and rising to comprise >50% of the flux at 8 keV. The soft X-ray emission lines from the jet are not blocked, constraining the jet length to ?> 2 × 10{sup 12} cm. The base jet density is in the range 10{sup 10-13} cm{sup –3}, in contrast to our previous estimate based on the Si XIII triplet, which is likely to have been affected by UV de-excitation. There is a clear overabundance of Ni by a factor of about 15 relative to the solar value, which may have resulted from an unusual supernova that formed the compact object.

Marshall, Herman L.; Canizares, Claude R.; Schulz, Norbert S.; Nowak, Michael [Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 (United States); Hillwig, Todd [Department of Physics and Astronomy, Valparaiso University, Valparaiso, IN 46383 (United States); Mioduszewski, Amy; Rupen, Michael [NRAO, P.O. Box 2, Socorro, NM 87801 (United States); Heinz, Sebastian, E-mail: hermanm@space.mit.edu, E-mail: crc@space.mit.edu, E-mail: nss@space.mit.edu, E-mail: mnowak@space.mit.edu, E-mail: todd.hillwig@valpo.edu, E-mail: amiodusz@nrao.edu, E-mail: mrupen@aoc.nrao.edu, E-mail: heinzs@astro.wisc.edu [Astronomy Department, 5408 Sterling Hall, University of Wisconsin, Madison, WI 53706 (United States)

2013-09-20T23:59:59.000Z

251

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

252

Physical Observables for Noncommutative Landau Levels  

E-Print Network [OSTI]

The Quantum Mechanics of a point particle on a Noncommutative Plane in a magnetic field is implemented in the present work as a deformation of the algebra which defines the Landau levels. I show how to define, in this deformed Quantum Mechanics, the physical observables, like the density correlation functions and Green function, on the completely filled ground level. Also it will be shown that the deformation changes the effective magnetic field which acts on the particles at long range, leading to an incompressible fluid with fractional filling of Laughlin type.

Mauro Riccardi

2005-11-29T23:59:59.000Z

253

Quantum discord between relatively accelerated observers  

E-Print Network [OSTI]

We calculate the quantum discord between two free modes of a scalar field which start in a maximally entangled state and then undergo a relative, constant acceleration. In a regime where there is no distillable entanglement due to the Unruh effect, we show that there is a finite amount of quantum discord, which is a measure of purely quantum correlations in a state, over and above quantum entanglement. Even in the limit of infinite acceleration of the observer detecting one of the modes, we provide evidence for a non-zero amount of purely quantum correlations, which might be exploited to gain non-trivial quantum advantages.

Animesh Datta

2009-05-20T23:59:59.000Z

254

XMM-Newton observation of Mrk 110  

E-Print Network [OSTI]

We report on the first XMM-Newton observation of the bright Narrow-Line Seyfert 1 galaxy Mrk 110. We find a narrow Fe K fluorescent line, a broad component FWHM ~ 16500 km/s of the OVII triplet, either due to infall motions or gravitational redshift effects in the vicinity of the central black hole, a Comptonized accretion disc layer, and a strong starburst component. If the broad redshifted soft X-ray components are due to gravitational redshift effects, the distance of the line emitting regions ranges between about 0.2 and 1 light day with respect to the central black hole.

Th. Boller; I. Balestra; W. Kollatschny

2006-12-18T23:59:59.000Z

255

William Herschel, the First Observational Cosmologist  

ScienceCinema (OSTI)

In the late 1700s, a composer, orchestra director and soloist named William Herschel became fascinated with astronomy, and, having built his own reflecting telescope, went out in his garden in Bath, England, one night and discovered Uranus?the first planet in human history ever found by an individual. The feat earned him a lifetime pension from King George III. But Herschel considered the discovery to be relatively unimportant in comparison to his real work: understanding the composition, structure and evolution of the universe. In pursuing that work, he became the first observational cosmologist.

Michael Lemonick

2010-01-08T23:59:59.000Z

256

Helicity Observation of Weak and Strong Fields  

E-Print Network [OSTI]

We report in this letter our analysis of a large sample of photospheric vector magnetic field measurements. Our sample consists of 17200 vector magnetograms obtained from January 1997 to August 2004 by Huairou Solar Observing Station of the Chinese National Astronomical Observatory. Two physical quantities, $\\alpha$ and current helicity, are calculated and their signs and amplitudes are studied in a search for solar cycle variations. Different from other studies of the same type, we calculate these quantities for weak ($100G1000G$) fields separately. For weak fields, we find that the signs of both $\\alpha$ and current helicity are consistent with the established hemispheric rule during most years of the solar cycle and their magnitudes show a rough tendency of decreasing with the development of solar cycle. Analysis of strong fields gives an interesting result: Both $\\alpha$ and current helicity present a sign opposite to that of weak fields. Implications of these observations on dynamo theory and helicity production are also briefly discussed.

Mei Zhang

2006-06-09T23:59:59.000Z

257

X-Ray Observations of Radio Galaxies  

E-Print Network [OSTI]

We review some of the ways that X-ray observations provide unique information on radio galaxies. Thermal bremsstrahlung X-ray emission provides detailed data on ambient densities and temperatures. These parameters in turn can be used for pressure balance calculations and can demonstrate how the ambient gas affects radio source structure. Additionally, many signatures of the interaction of radio jets and lobes with the hot gas are found in high resolution X-ray maps. Non-thermal X-ray emission from knots and hotspots of radio jets can give us constraints on the relativistic electron population for energies greater that that normally sampled in the radio (in the case of synchrotron emission) or can give us an independent estimate of the average magnetic field strength (if inverse Compton emission is the origin of the X-rays). From recent ROSAT HRI observations of 3C 390.3 and 3C 120, we show evidence that X-ray emission from knots and hotspots appears to be associated with regions of large gradients in the radio surface brightness; i.e. at the location of powerful shocks.

D. E. Harris

1998-04-20T23:59:59.000Z

258

Report: Human Capital Discussion and Observations  

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

Human Capital Discussion, Human Capital Discussion, Observations, and Recommendations August 24, 2006 Submitted by: Mr. A. James Barnes and Mr. Dennis Ferrigno Background: During the March 23-24, 2006 EMAB Public Meeting, Assistant Secretary for Environmental Management (EM-1), James Rispoli, asked the EMAB members to pursue a review of EM Human Capital issues. Although the National Academy of Public Administration (NAPA) is also conducting a review of this topic - the results of which will be available in October 2007 - Mr. Rispoli instructed EMAB to identify areas that need improvement and make recommendations to begin bettering the program now. EMAB focused specifically on the areas of: Morale/Workplace Census Planning/Accountability Training/Certification

259

Laser frequency combs for astronomical observations  

E-Print Network [OSTI]

A direct measurement of the universe's expansion history could be made by observing in real time the evolution of the cosmological redshift of distant objects. However, this would require measurements of Doppler velocity drifts of about 1 centimeter per second per year, and astronomical spectrographs have not yet been calibrated to this tolerance. We demonstrate the first use of a laser frequency comb for wavelength calibration of an astronomical telescope. Even with a simple analysis, absolute calibration is achieved with an equivalent Doppler precision of approximately 9 meters per second at about 1.5 micrometers - beyond state-of-the-art accuracy. We show that tracking complex, time-varying systematic effects in the spectrograph and detector system is a particular advantage of laser frequency comb calibration. This technique promises an effective means for modeling and removal of such systematic effects to the accuracy required by future experiments to see direct evidence of the universe's putative acceleration.

Tilo Steinmetz; Tobias Wilken; Constanza Araujo-Hauck; Ronald Holzwarth; Theodor W. Hänsch; Luca Pasquini; Antonio Manescau; Sandro D'Odorico; Michael T. Murphy; Thomas Kentischer; Wolfgang Schmidt; Thomas Udem

2008-09-09T23:59:59.000Z

260

Non-observability of Spectroscopic Factors  

E-Print Network [OSTI]

The spectroscopic factor has long played a central role in nuclear reaction theory. However, it is not an observable. Consequently it is of minimal use as a meeting point between theory and experiment. In this paper the nature of the problem is explored. At the many-body level, unitary transformations are constructed that vary the spectroscopic factors over the full range of allowed values. At the phenomenological level, field redefinitions play a similar role and the spectroscopic factor extracted from experiment depend more on the assumed energy dependence of the potentials than on the measured cross-sections. The consistency conditions, gauge invariance and Wegmann's theorem play a large role in these considerations.

B. K. Jennings

2011-02-17T23:59:59.000Z

Note: This page contains sample records for the topic "lowest observed adverse" 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

Dark Energy: Observational Evidence and Theoretical Models  

E-Print Network [OSTI]

The book elucidates the current state of the dark energy problem and presents the results of the authors, who work in this area. It describes the observational evidence for the existence of dark energy, the methods and results of constraining of its parameters, modeling of dark energy by scalar fields, the space-times with extra spatial dimensions, especially Kaluza---Klein models, the braneworld models with a single extra dimension as well as the problems of positive definition of gravitational energy in General Relativity, energy conditions and consequences of their violation in the presence of dark energy. This monograph is intended for science professionals, educators and graduate students, specializing in general relativity, cosmology, field theory and particle physics.

Novosyadlyj, B; Shtanov, Yu; Zhuk, A

2015-01-01T23:59:59.000Z

262

Global Volunteer Observing Ship (VOS) Program Data  

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

CDIAC provides data management support for the Global Volunteer Observing Ship (VOS) Program. The VOS project is coordinated by the UNESCO International Ocean Carbon Coordination Project (IOCCP). The international groups from 14 countries have been outfitting research ships and commercial vessels with automated CO2 sampling equipment to analyze the carbon exchange between the ocean and atmosphere. [copied from http://cdiac.ornl.gov/oceans/genInfo.html] CDIAC provides a map interface with the shipping routes of the 14 countries involved marked in different colors. Clicking on the ship's name on that route brings up information about the vessel, the kinds of measurements collected and the timeframe, links to project pages, and, most important, the links to the data files themselves. The 14 countries are: United States, United Kingdom, Japan, France, Germany, Australia, Canada, Spain, Norway, New Zealand, China (including Taiwan), Iceland, and the Netherlands. Both archived and current, underway data can be accessed from the CDIAC VOS page.

263

Moving observers, nonorthogonal boundaries, and quasilocal energy  

Science Journals Connector (OSTI)

The popular Hamilton-Jacobi method first proposed by Brown and York for defining quasilocal quantities such as energy for spatially bound regions assumes that the timelike boundary is orthogonal to the foliation of the spacetime. Such a restriction is undesirable for both theoretical and computational reasons. We remove the orthogonality assumption and show that it is more natural to focus on the foliation of the timelike boundary rather than the foliation of the entire four dimensional bound region. Reference spacetimes which define additional terms in the action are discussed in detail. To demonstrate this new formulation, we calculate the quasilocal energies seen by observers who are moving with respect to a Schwarzschild black hole.

I. S. Booth and R. B. Mann

1999-02-16T23:59:59.000Z

264

Observables in Neutrino Mass Spectroscopy Using Atoms  

E-Print Network [OSTI]

The process of collective de-excitation of atoms in a metastable level into emission mode of a single photon plus a neutrino pair, called radiative emission of neutrino pair (RENP), is sensitive to the absolute neutrino mass scale, to the neutrino mass hierarchy and to the nature (Dirac or Majorana) of massive neutrinos. We investigate how the indicated neutrino mass and mixing observables can be determined from the measurement of the corresponding continuous photon spectrum taking the example of a transition between specific levels of the Yb atom. The possibility of determining the nature of massive neutrinos and, if neutrinos are Majorana fermions, of obtaining information about the Majorana phases in the neutrino mixing matrix, is analyzed in the cases of normal hierarchical, inverted hierarchical and quasi-degenerate types of neutrino mass spectrum. We find, in particular, that the sensitivity to the nature of massive neutrinos depends critically on the atomic level energy difference relevant in the RENP.

D. N. Dinh; S. T. Petcov; N. Sasao; M. Tanaka; M. Yoshimura

2012-09-21T23:59:59.000Z

265

Solar coronal observations at high frequencies  

E-Print Network [OSTI]

The Solar Eclipse Coronal Imaging System (SECIS) is a simple and extremely fast, high-resolution imaging instrument designed for studies of the solar corona. Light from the corona (during, for example, a total solar eclipse) is reflected off a heliostat and passes via a Schmidt-Cassegrain telescope and beam splitter to two CCD cameras capable of imaging at 60 frames a second. The cameras are attached via SCSI connections to a purpose-built PC that acts as the data acquisition and storage system. Each optical channel has a different filter allowing observations of the same events in both white light and in the green line (Fe XIV at 5303 A). Wavelet analysis of the stabilized images has revealed high frequency oscillations which may make a significant contribution on the coronal heating process. In this presentation we give an outline of the instrument and its future development.

A. C. Katsiyannis; M. Mathioudakis; K. J. H. Phillips; D. R. Williams; F. P. Keenan

2001-11-22T23:59:59.000Z

266

Time Variability of the "Quiet" Sun Observed  

Science Journals Connector (OSTI)

The Transition Region and Coronal Explorer (TRACE) observed a "quiet-Sun" region on 1999 February 17 from 02:15 UT to 3:00 UT with full resolution (05 pixel size), high cadence (125 s), and deep exposures (65 and 46 s) in the 171 Å and 195 Å wavelengths. We start our investigation of the time variability of "quiet-Sun" images with a detailed analysis of instrumental and nonsolar effects, such as orbital temperature variations, filtering of particle radiation spikes, spacecraft pointing drift, and solar rotation tracking. We quantify the magnitude of various noise components (photon Poisson statistics, data digitization, data compression, and readout noise) and establish an upper limit for the data noise level, above which temporal variability can safely be attributed to solar origin. We develop a pattern recognition code that extracts spatiotemporal events with significant variability, yielding a total of 3131 events in 171 Å and 904 events in 195 Å. We classify all 904 events detected in 195 Å according to flarelike characteristics and establish a numerical flare criterion based on temporal, spatial, and dynamic cross-correlation coefficients between the two observed temperatures (0.9 and 1.4 MK). This numerical criterion matches the visual flare classification in 83% of the cases and can be used for automated flare search. Using this flare discrimination criterion we find that only 35% (and 25%) of the events detected in 171 (and 195) Å represent flarelike events. The discrimination of flare events leads to a frequency distribution of peak fluxes, N(?F) ? ?F-1.83±0.07 at 195 Å, which is significantly flatter than the distribution of all events. A sensitive discrimination criterion of flare events is therefore important for microflare statistics and for conclusions on their occurrence rate and efficiency for coronal heating.

Markus J. Aschwanden; Richard W. Nightingale; Ted D. Tarbell; C. J. Wolfson

2000-01-01T23:59:59.000Z

267

Proposed Solution:Proposed Solution: The Autonomous Networked Aquatic Microbial Observing SystemThe Autonomous Networked Aquatic Microbial Observing System Networked Aquatic Microbial Observing Systems: an overviewNetworked Aquatic Microbial Observing Sys  

E-Print Network [OSTI]

Proposed Solution:Proposed Solution: The Autonomous Networked Aquatic Microbial Observing SystemThe Autonomous Networked Aquatic Microbial Observing System Networked Aquatic Microbial Observing Systems Ocean Research Goals · Development of autonomous networks of heterogeneous sensors to monitor and sample

Smith, Ryan N.

268

U.S. gasoline prices at its lowest since February 2011 (short version)  

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

U.S. crude oil output exceeds crude oil imports U.S. crude oil output exceeds crude oil imports Estimated U.S. crude oil production in October surpassed U.S. crude oil imports on a monthly basis for the first time since February 1995. Domestic crude oil output averaged 7.7 million barrels per day in October... the highest production for any October in 25 years while ... U.S. crude oil imports were 7.6 million barrels per day last month according to the new monthly forecast from the U.S. Energy Information Administration. . Crude oil production is forecast to average 7.5 million barrels per day this year and then jump to 8.5 million barrels per day in 2014. That would be the highest annual output since 1986. In response to higher oil production, EIA expects U.S. net petroleum imports to meet 28% of

269

U.S. gasoline prices at its lowest since February 2011 (short version)  

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

Winter heating bills for natural gas to increase, heating oil costs to decline Winter heating bills for natural gas to increase, heating oil costs to decline U.S. households that use natural gas, electricity or propane to stay warm are expected to pay more this winter in heating bills compared to last year, while bills for heating oil users will decline slightly from last winter. The U.S. Energy Information Administration's updated winter forecast expects heating bills will be 11 percent higher for homes that heat with natural gas. Propane users in the Midwest, where propane is used more than in any other region of the country, will see their heating costs rise 10 percent. Propane users in the Northeast are expected to see a 6 percent increase, an improvement from the 11% increase EIA initially forecast for this winter.

270

Climate Change Update: Baseload Geothermal is One of the Lowest Emitting Energy Technologies  

Broader source: Energy.gov [DOE]

Geothermal energy – energy derived from the heat of the earth – has the ability to produce electricity consistently around the clock, draws a small environmental footprint, and emits little or no greenhouse gases (GHG).

271

U.S. gasoline prices at its lowest since February 2011 (short...  

Gasoline and Diesel Fuel Update (EIA)

EIA's most recent residential energy consumption survey shows that about 1 in 5 new homes in the New England states use wood for space heating, water heating or...

272

Time-resolved infrared spectroscopy of the lowest triplet state of thymine and thymidine  

E-Print Network [OSTI]

in the triplet state are seen at 1603 and $1700 cmÃ?1 in room-tem- perature acetonitrile-d3 solution. These bands and singlet IR absorption cross sections, confirming the peak assignments and elucidating the nature

Herbert, John

273

Lowest Engine-Out Emissions as the Key to the Future of the Heavy...  

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

for spec. power > 25-26 kW ltr * PfP - potential > 200 bar * Fully flexible FIS with pressure potential > 2400bar HDDE HDDE Development Strategies for US Development...

274

S june 2007| Negro Rivers reached their lowest values since 1968,  

E-Print Network [OSTI]

for additional water supplies for irrigation and pro- duction of hydroelectric power in the Central Valley

275

Nanostructured LaB6 Field Emitter with Lowest Apical Work Function  

E-Print Network [OSTI]

and more stable electron beam for illumination. A cold field emitter (CFE) offers the highest brightness emitter.1 For a CFE, the source brightness is associated with the emission current density, which can coherence of a CFE, characterized by the energy spread of the emitter, can be presented as with c3 being

Qin, Lu-Chang

276

Understanding Utility Rates or How to Operate at the Lowest $/BTU  

E-Print Network [OSTI]

:F.~:brP'RQJ~:Cr::::::::: ::: :::] by LONE STAR GAS COMPANY JIM PHILLIPS, P.E., CEM IEQUIPMENT D A T Ai IENERGY DAT Ai KW Gas Rate: $4.86 per MCFGenerator Size: 5"00 Coqen Rate: $3.00 Iper MCF Recoverable Heat: 4.3' MMBH I _ Fuel Consumption: 8.0 MCFH Electric Rate $6.80 per...:F.~:brP'RQJ~:Cr::::::::: ::: :::] by LONE STAR GAS COMPANY JIM PHILLIPS, P.E., CEM IEQUIPMENT D A T Ai IENERGY DAT Ai KW Gas Rate: $4.86 per MCFGenerator Size: 5"00 Coqen Rate: $3.00 Iper MCF Recoverable Heat: 4.3' MMBH I _ Fuel Consumption: 8.0 MCFH Electric Rate $6.80 per...

Phillips, J. N.

277

Time Variability of the "Quiet" Sun Observed  

Science Journals Connector (OSTI)

We present a detailed analysis of the geometric and physical parameters of 281 EUV nanoflares, simultaneously detected with the TRACE telescope in the 171 and 195 Å wavelengths. The detection and discrimination of these flarelike events is detailed in the first paper in this series. We determine the loop length l, loop width w, emission measure EM, the evolution of the electron density ne(t) and temperature Te(t), the flare decay time ?decay, and calculate the radiative loss time ?loss, the conductive loss time ?cond, and the thermal energy Eth. The findings are as follows: (1) EUV nanoflares in the energy range of 1024-1026 ergs represent miniature versions of larger flares observed in soft X-rays (SXR) and hard X-rays (HXR), scaled to lower temperatures (Te 2 MK), lower densities (ne 109 cm-3), and somewhat smaller spatial scales (l ? 2-20 Mm). (2) The cooling time ?decay is compatible with the radiative cooling time ?rad, but the conductive cooling timescale ?cond is about an order of magnitude shorter, suggesting repetitive heating cycles in time intervals of a few minutes. (3) The frequency distribution of thermal energies of EUV nanoflares, N(E) ? 10-46(E/1024)-1.8 (s-1 cm-2 ergs-1) matches that of SXR microflares in the energy range of 1026-1029, and exceeds that of nonthermal energies of larger flares observed in HXR by a factor of 3-10 (in the energy range of 1029-1032 ergs). Discrepancies of the power-law slope with other studies, which report higher values in the range of a = 2.0-2.6 (Krucker & Benz; Parnell & Jupp), are attributed to methodical differences in the detection and discrimination of EUV microflares, as well as to different model assumptions in the calculation of the electron density. Besides the insufficient power of nanoflares to heat the corona, we find also other physical limits for nanoflares at energies 1024 ergs, such as the area coverage limit, the heating temperature limit, the lower coronal density limit, and the chromospheric loop height limit. Based on these quantitative physical limitations, it appears that coronal heating requires other energy carriers that are not luminous in EUV, SXR, and HXR.

Markus J. Aschwanden; Ted D. Tarbell; Richard W. Nightingale; Carolus J. Schrijver; Alan Title; Charles C. Kankelborg; Piet Martens; Harry P. Warren

2000-01-01T23:59:59.000Z

278

Preliminary Studies on the Variational Assimilation of Cloud-Radiation Observations Using ARM Observations  

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

Studies on the Variational Assimilation Studies on the Variational Assimilation of Cloud-Radiation Observations Using ARM Observations M. Janisková, J.-F. Mahfouf, and J.-J. Morcrette European Centre for Medium-Range Weather Forecasts Shinfield Park, Reading Berskshire, United Kingdom Abstract A linearized cloud scheme and a radiation scheme including cloud effects have been developed at European Centre for Medium-Range Weather Forecasts (ECMWF) to assimilate cloud properties in the framework of the four-dimensional variational (4D-Var) assimilation system. To investigate the potential of those schemes to modify the model temperature, humidity and cloud profiles and produce a better match to the observed radiation fluxes, one-dimensional variational (1D-Var) assimilation experiments have been carried out using data from the Atmospheric Radiation Measurement (ARM)

279

Global Hydrometeor Occurrence as Observed by CloudSAT: Initial Observations from Summer 2006  

SciTech Connect (OSTI)

Measurements of global hydrometeor coverage and occurrence frequencies as observed by the cloud radar on CloudSat are summarized using data collected during Summer 2006. CloudSat was launched on 28 April 2006 and began collecting data routinely on 7 June 2006. In this article we document the distribution of cloudiness from the ITCZ to the Polar regions as observed by CloudSat during the first summer of operations. The overall global hydrometeor coverage as observed by CloudSat is found to be 0.506. The vertical distribution of zonally averaged hydrometeor occurrence shows the relationship of clouds with components of the atmospheric general circulation such as the Hadley Cell, the ubiquitous storms over the Southern Ocean, and the subtropical stratocumulus regimes.

Mace, Gerald G.; Marchand, Roger T.; Zhang, Qiuqing; Stephens, Graeme L.

2007-05-08T23:59:59.000Z

280

In Situ Observation of Directed Nanoparticle Aggregation During...  

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

Observation of Directed Nanoparticle Aggregation During the Synthesis of Ordered Nanoporous Metal in Soft Templates. In Situ Observation of Directed Nanoparticle Aggregation During...

Note: This page contains sample records for the topic "lowest observed adverse" 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

Direct observations of thermally induced structural changes in...  

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

observations of thermally induced structural changes in amorphous silicon carbide. Direct observations of thermally induced structural changes in amorphous silicon carbide....

282

No Confinement Needed: Observation of a Metastable Hydrophobic...  

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

Confinement Needed: Observation of a Metastable Hydrophobic Wetting Two-Layer Ice on Graphene. No Confinement Needed: Observation of a Metastable Hydrophobic Wetting Two-Layer Ice...

283

Common Cyber Security Vulnerabilities Observed in Control System...  

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

Common Cyber Security Vulnerabilities Observed in Control System Assessments by the INL NSTB Program Common Cyber Security Vulnerabilities Observed in Control System Assessments by...

284

ARM - Field Campaign - Observations and Modeling of the Green...  

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

govCampaignsObservations and Modeling of the Green Ocean Amazon (GOAMAZON 2014) Campaign Links GOAMAZON Website ARM Manacapuru Deployment Page Related Campaigns Observations and...

285

Direct Experimental Observation of the Low Ionization Potentials...  

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

Observation of the Low Ionization Potentials of Guanine in Free Oligonucleotides by Using Photoelectron Direct Experimental Observation of the Low Ionization Potentials of Guanine...

286

Magnetism and superconductivity observed to exist in harmony  

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

Magnetism and superconductivity exist in harmony Magnetism and superconductivity observed to exist in harmony Physicists have observed, for the first time in a single exotic phase,...

287

Observational constraints to a unified cosmological model  

E-Print Network [OSTI]

We propose a phenomenological unified model for dark matter and dark energy based on an equation of state parameter $w$ that scales with the $\\arctan$ of the redshift. The free parameters of the model are three constants: $\\Omega_{b0}$, $\\alpha$ and $\\beta$. Parameter $\\alpha$ dictates the transition rate between the matter dominated era and the accelerated expansion period. The ratio $\\beta / \\alpha$ gives the redshift of the equivalence between both regimes. Cosmological parameters are fixed by observational data from Primordial Nucleosynthesis (PN), Supernovae of the type Ia (SNIa), Gamma-Ray Bursts (GRB) and Baryon Acoustic Oscillations (BAO). The calibration of the 138 GRBs events is performed using the 580 SNIa of the Union2.1 data set and a new set of 79 high-redshift GRBs is obtained. The various sets of data are used in different combinations to constraint the parameters through statistical analysis. The unified model is compared to the $\\Lambda$CDM model and their differences are emphasized.

Cuzinatto, R R; de Morais, E M

2014-01-01T23:59:59.000Z

288

Internetwork chromospheric bright grains observed with IRIS  

E-Print Network [OSTI]

The Interface Region Imaging Spectrograph (IRIS) reveals small-scale rapid brightenings in the form of bright grains all over coronal holes and the quiet sun. These bright grains are seen with the IRIS 1330 \\AA, 1400 \\AA\\ and 2796 \\AA\\ slit-jaw filters. We combine coordinated observations with IRIS and from the ground with the Swedish 1-m Solar Telescope (SST) which allows us to have chromospheric (Ca II 8542 \\AA, Ca II H 3968 \\AA, H\\alpha, and Mg II k 2796 \\AA), and transition region (C II 1334 \\AA, Si IV 1402) spectral imaging, and single-wavelength Stokes maps in Fe I 6302 \\AA at high spatial (0.33"), temporal and spectral resolution. We conclude that the IRIS slit-jaw grains are the counterpart of so-called acoustic grains, i.e., resulting from chromospheric acoustic waves in a non-magnetic environment. We compare slit-jaw images with spectra from the IRIS spectrograph. We conclude that the grain intensity in the 2796 \\AA\\ slit-jaw filter comes from both the Mg II k core and wings. The signal in the C II ...

Martínez-Sykora, Juan; Carlsson, Mats; De Pontieu, Bart; Pereira, Tiago M D; Boerner, Paul; Hurlburt, Neal; Kleint, Lucia; Lemen, James; Tarbell, Ted D; Title, Alan; Wuelser, Jean-Pierre; Hansteen, Viggo H; Golub, Leon; McKillop, Sean; Reeves, Kathy K; Saar, Steven; Testa, Paola; Tian, Hui; Jaeggli, Sarah; Kankelborg, Charles

2015-01-01T23:59:59.000Z

289

Observational tests for ?(t)CDM cosmology  

SciTech Connect (OSTI)

We investigate the observational viability of a class of cosmological models in which the vacuum energy density decays linearly with the Hubble parameter, resulting in a production of cold dark matter particles at late times. Similarly to the flat ?CDM case, there is only one free parameter to be adjusted by the data in this class of ?(t)CDM scenarios, namely, the matter density parameter. To perform our analysis we use three of the most recent SNe Ia compilation sets (Union2, SDSS and Constitution) along with the current measurements of distance to the BAO peaks at z = 0.2 and z = 0.35 and the position of the first acoustic peak of the CMB power spectrum. We show that in terms of ?{sup 2} statistics both models provide good fits to the data and similar results. A quantitative analysis discussing the differences in parameter estimation due to SNe light-curve fitting methods (SALT2 and MLCS2k2) is studied using the current SDSS and Constitution SNe Ia compilations. A matter power spectrum analysis using the 2dFGRS is also performed, providing a very good concordance with the constraints from the SDSS and Constitution MLCS2k2 data.

Pigozzo, C.; Carneiro, S. [Instituto de Física, Universidade Federal da Bahia, 40210-340 Salvador, BA (Brazil); Dantas, M.A.; Alcaniz, J.S., E-mail: cpigozzo@ufba.br, E-mail: aldinez@on.br, E-mail: saulo.carneiro@pq.cnpq.br, E-mail: alcaniz@on.br [Observatório Nacional, 20921-400 Rio de Janeiro, RJ (Brazil)

2011-08-01T23:59:59.000Z

290

Nonperturbative QCD corrections to electroweak observables  

SciTech Connect (OSTI)

Nonperturbative QCD corrections are important to many low-energy electroweak observables, for example the muon magnetic moment. However, hadronic corrections also play a significant role at much higher energies due to their impact on the running of standard model parameters, such as the electromagnetic coupling. Currently, these hadronic contributions are accounted for by a combination of experimental measurements and phenomenological modeling but ideally should be calculated from first principles. Recent developments indicate that many of the most important hadronic corrections may be feasibly calculated using lattice QCD methods. To illustrate this, we will examine the lattice computation of the leading-order QCD corrections to the muon magnetic moment, paying particular attention to a recently developed method but also reviewing the results from other calculations. We will then continue with several examples that demonstrate the potential impact of the new approach: the leading-order corrections to the electron and tau magnetic moments, the running of the electromagnetic coupling, and a class of the next-to-leading-order corrections for the muon magnetic moment. Along the way, we will mention applications to the Adler function, the determination of the strong coupling constant and QCD corrections to muonic-hydrogen.

Dru B Renner, Xu Feng, Karl Jansen, Marcus Petschlies

2011-12-01T23:59:59.000Z

291

Radio Observations of High Redshift Radio Galaxies  

E-Print Network [OSTI]

We review some aspects of radio continuum polarimetric imaging of high redshift radio galaxies. The correlation between extreme values of Faraday rotation observed toward radio emitting structures in nearby radio galaxies, and X-ray emitting cluster atmospheres, is presented as a method for targeting objects at high redshift for deep X-ray searches. We present an X-ray detection of the extreme rotation measure radio galaxy PKS 1138-262 at z = 2.156, and we argue that the X-ray emission is from a cluster atmosphere with a luminosity of 1.7x10^{44} h^{-2} ergs sec^{-1}. We also present results on the correlation between size and redshift for a sample of ultra-luminous radio galaxies between 0 < z < 4.3. Source sizes decrease systematically with redshift, suggesting either denser environments, or younger sources, at high redshift. An alternative explanation is significant inverse Compton losses off the microwave background at high redshift.

C. L. Carilli; H. J. A. Rottgering; G. K. Miley L. Pentericci; D. E. Harris

1998-02-18T23:59:59.000Z

292

Neutron scattering observation of solitons (invited)  

Science Journals Connector (OSTI)

It has been suggested that in systems with strong fluctuations as around a critical point strongly nonlinear effects should occur. The simplest possible equation for nonlinear dynamics is the sine?Gordon equation. This equation can be applied to the dynamics of a 1?D?ferromagnetic chain with planar anisotropy in a symmetry?breaking field (magnetic field perpendicular to the chain direction). The dynamics of such a system consist of two types of elementary excitations: nonlinear modes (solitons and breathers) and linear modes (spin waves). The thermodynamics for the nonlinear modes are the same as for a gas of noninteracting relativistic quasi?particles. In the frame of that picture the dynamic structure factor for an inelastic neutron scattering experiment can be calculated for the relativistic case and it appears that inelastic n?scattering is the most direct way for the observation of solitons. Experimental results obtained for CsNiF3 are discussed and compared with the theoretical results. These experimental results show that nonlinear modes are indeed an essential part of the dynamics of that system.

1979-01-01T23:59:59.000Z

293

Observational Cosmology With Semi-Relativistic Stars  

E-Print Network [OSTI]

Galaxy mergers lead to the formation of massive black hole binaries which can accelerate background stars close to the speed of light. We estimate the comoving density of ejected stars with a peculiar velocity in excess of $0.1c$ or $0.5c$ to be $\\sim 10^{10}$ and $10^5$ Gpc$^{-3}$ respectively, in the present-day Universe. Semi-relativistic giant stars will be detectable with forthcoming telescopes out to a distance of a few Mpc, where their proper motion, radial velocity, and age, can be spectroscopically measured. In difference from traditional cosmological messengers, such as photons, neutrinos, or cosmic-rays, these stars shine and so their trajectories need not be directed at the observer for them to be detected. Tracing the stars to their parent galaxies as a function of speed and age will provide a novel test of the equivalence principle and the standard cosmological parameters. Semi-relativistic stars could also flag black hole binaries as gravitational wave sources for the future eLISA observatory.

Loeb, Abraham

2014-01-01T23:59:59.000Z

294

POLARIMETRIC OBSERVATIONS OF {sigma} ORIONIS E  

SciTech Connect (OSTI)

Some massive stars possess strong magnetic fields that confine plasma in the circumstellar environment. These magnetospheres have been studied spectroscopically, photometrically, and, more recently, interferometrically. Here we report on the first firm detection of a magnetosphere in continuum linear polarization, as a result of monitoring {sigma} Ori E at the Pico dos Dias Observatory. The non-zero intrinsic polarization indicates an asymmetric structure whose minor elongation axis is oriented 150. Degree-Sign 0 east of the celestial north. A modulation of the polarization was observed with a period of half of the rotation period, which supports the theoretical prediction of the presence of two diametrally opposed, corotating blobs of gas. A phase lag of -0.085 was detected between the polarization minimum and the primary minimum of the light curve, suggestive of a complex shape of the plasma clouds. We present a preliminary analysis of the data with the Rigidly Rotating Magnetosphere model, which could not reproduce simultaneously the photometric and polarimetric data. A toy model comprising two spherical corotating blobs joined by a thin disk proved more successful in reproducing the polarization modulation. With this model we were able to determine that the total scattering mass of the thin disk is similar to the mass of the blobs (2M{sub b}/M{sub d} = 1.2) and that the blobs are rotating counterclockwise on the plane of the sky. This result shows that polarimetry can provide a diagnostic of the geometry of clouds, which will serve as an important constraint for improving the Rigidly Rotating Magnetosphere model.

Carciofi, A. C.; Faes, D. M. [Instituto de Astronomia, Geofisica e Ciencias Atmosfericas, Universidade de Sao Paulo, Rua do Matao 1226, Cidade Universitaria, 05508-900 Sao Paulo, SP (Brazil); Townsend, R. H. D. [Department of Astronomy, University of Wisconsin-Madison, Sterling Hall, 475 N. Charter Street, Madison, WI 53706 (United States); Bjorkman, J. E., E-mail: carciofi@usp.br [Ritter Observatory, Department of Physics and Astronomy, University of Toledo, Toledo, OH 43606 (United States)

2013-03-20T23:59:59.000Z

295

University of Hawaii#Institute for Astronomy OBSERVING TIME REQUEST  

E-Print Network [OSTI]

of the tidal features, and nuclear separation. By comparing the observed characteristics of such an optica

Hibbard, John

296

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

297

Reply to comment by Finnigan on ``On micrometeorological observations of surface-air exchange over tall vegetation''  

E-Print Network [OSTI]

hills (Raupach et al., 1992) to illustrate how the concentration ®eld might respond to ¯ow conver- gence within the lowest portion of the 2D Agricultural and Forest Meteorology 97 (1999) 65±67 * Tel.: +1

Lee, Xuhui

298

Optimization of the transmission of observable expectation values and observable statistics in Continuous Variable Teleportation  

E-Print Network [OSTI]

We analyze the statistics of observables in continuous variable quantum teleportation in the formalism of the characteristic function. We derive expressions for average values of output state observables in particular cumulants which are additive in terms of the input state and the resource of teleportation. Working with Squeezed Bell-like states, which may be optimized in a free parameter for better teleportation performance we discuss the relation between resources optimal for fidelity and for different observable averages. We obtain the values of the free parameter which optimize the central momenta and cumulants up to fourth order. For the cumulants the distortion between in and out states due to teleportation depends only on the resource. We obtain optimal parameters for the second and fourth order cumulants which do not depend on the squeezing of the resource. The second order central momenta which is equal to the second order cumulants and the photon number average are optimized by the same resource. We show that the optimal fidelity resource, found in reference (Phys. Rev. A {\\bf 76}, 022301 (2007)) to depend also on the characteristics of input, tends for high squeezing to the resource which optimizes the second order momenta. A similar behavior is obtained for the resource which optimizes the photon statistics which is treated here using the sum of the squared differences in photon probabilities of input and output states as the distortion measure. This is interpreted to mean that the distortions associated to second order momenta dominates the behavior of the output state for large squeezing of the resource. Optimal fidelity and optimal photon statistics resources are compared and is shown that for mixtures of Fock states they are equivalent.

L. Albano Farias; J. Stephany

2010-09-28T23:59:59.000Z

299

Verification of speckle contrast measurement interrelation with observation distance  

Science Journals Connector (OSTI)

The speckle contrasts of two types of laser projectors were measured at various observation distances and observation lens pinhole diameters using a quantitative measurement technique. We found that the speckl...

Koji Suzuki; Tatsuo Fukui; Shigeo Kubota; Yasunori Furukawa

2014-01-01T23:59:59.000Z

300

The edge observed : island landscape for a marine biology facility  

E-Print Network [OSTI]

This thesis explores the concept of edges through observation and design. The intent of the observation/design is to understand and to illustrate possibilities for design that will enrich the experience of the built ...

Stringer, Geraldine A

1987-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lowest observed adverse" 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

Toward a Mesoscale Observation Network in Southeast Asia  

Science Journals Connector (OSTI)

The current weather observation network in Southeast Asia is unable to support the accurate monitoring and prediction of the region's predominantly convective weather. Establishing a multisensor mesoscale observation network comprising automated ...

Tieh-Yong Koh; Chee-Kiat Teo

2009-04-01T23:59:59.000Z

302

Observation Wells At Lightning Dock Geothermal Area (Reeder,...  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Observation Wells At Lightning Dock Geothermal Area (Reeder, 1957) Exploration Activity Details Location...

303

Observers for systems with nonlinearities satisfying incremental quadratic constraints  

Science Journals Connector (OSTI)

We consider the problem of designing observers to asymptotically estimate the state of a system whose nonlinear time-varying terms satisfy an incremental quadratic inequality that is parameterized by a set of multiplier matrices. Observer design is reduced ... Keywords: Application of nonlinear analysis and design, Linear matrix inequalities, Nonlinear observer and filter design, Optimization-based controller synthesis

Behçet Aç?kme?e; Martin Corless

2011-07-01T23:59:59.000Z

304

Targeted Observations for Atmospheric Chemistry and Transport Models  

E-Print Network [OSTI]

for a simulation of atmospheric pollution in East Asia in March 2001 show that the optimal location of observations, targeted observations. 1 Introduction Our ability to anticipate and manage changes in atmospheric pollutantTargeted Observations for Atmospheric Chemistry and Transport Models Adrian Sandu Department

Sandu, Adrian

305

Nonlinear observer and parameter estimation for electropneumatic clutch  

E-Print Network [OSTI]

coefficient. General designs for nonlinear observer design are devel- oped for particular classes of nonlinear of estimate errors. They also consider a three-way proportional valve as con- trol valve while we consider on/off-solenoid valves. The presented observer in this paper is a deterministic observer with linear output

Johansen, Tor Arne

306

Partial and Complete Observables for Canonical General Relativity  

E-Print Network [OSTI]

In this work we will consider the concepts of partial and complete observables for canonical general relativity. These concepts provide a method to calculate Dirac observables. The central result of this work is that one can compute Dirac observables for general relativity by dealing with just one constraint. For this we have to introduce spatial diffeomorphism invariant Hamiltonian constraints. It will turn out that these can be made to be Abelian. Furthermore the methods outlined here provide a connection between observables in the space--time picture, i.e. quantities invariant under space--time diffeomorphisms, and Dirac observables in the canonical picture.

B. Dittrich

2005-07-25T23:59:59.000Z

307

EMISSION HEIGHT AND TEMPERATURE DISTRIBUTION OF WHITE-LIGHT EMISSION OBSERVED BY HINODE/SOT FROM THE 2012 JANUARY 27 X-CLASS SOLAR FLARE  

SciTech Connect (OSTI)

White-light emissions were observed from an X1.7 class solar flare on 2012 January 27, using three continuum bands (red, green, and blue) of the Solar Optical Telescope on board the Hinode satellite. This event occurred near the solar limb, and so differences in the locations of the various emissions are consistent with differences in heights above the photosphere of the various emission sources. Under this interpretation, our observations are consistent with the white-light emissions occurring at the lowest levels of where the Ca II H emission occurs. Moreover, the centers of the source regions of the red, green, and blue wavelengths of the white-light emissions are significantly displaced from each other, suggesting that those respective emissions are emanating from progressively lower heights in the solar atmosphere. The temperature distribution was also calculated from the white-light data, and we found the lower-layer emission to have a higher temperature. This indicates that high-energy particles penetrated down to near the photosphere, and deposited heat into the ambient lower layers of the atmosphere.

Watanabe, Kyoko; Shimizu, Toshifumi [Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo-ku, Sagamihara, Kanagawa 252-5210 (Japan); Masuda, Satoshi [Solar-Terrestrial Environment Laboratory, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601 (Japan); Ichimoto, Kiyoshi [Kwasan and Hida Observatories, Kyoto University, Yamashina, Kyoto 607-8471 (Japan); Ohno, Masanori, E-mail: watanabe.kyoko@isas.jaxa.jp [Department of Physical Sciences, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8516 (Japan)

2013-10-20T23:59:59.000Z

308

New Insights into the 243Am 48Ca Reaction Products Previously Observed in the Experiments on Elements 113, 115, and 117  

SciTech Connect (OSTI)

Results of a new series of experiments on the study of production cross sections and decay properties of the isotopes of element 115 in the reaction {sup 243}Am + {sup 48}Ca are presented. Twenty-one new decay chains originating from {sup 288}115 were established as the product of the 3n-evaporation channel by measuring the excitation function at three excitation energies of the compound nucleus {sup 291}115. The decay properties of all newly observed nuclei are in full agreement with those we measured in 2003. At the lowest excitation energy E* = 33 MeV, for the first time we registered the product of the 2n-evaporation channel, {sup 289}115, which was also observed previously in the reaction {sup 249}Bk + {sup 48}Ca as the daughter nucleus of the decay of {sup 293}117. The maximum cross section for the production of {sup 288}115 is found to be 8.5 pb at E* {approx} 36 MeV.

Oganessian, Yuri Ts. [FLNR-JINR, Russia; Abdullin, F. Sh. [Joint Institute for Nuclear Research, Dubna, Russia; Dmitriev, S. [FLNR-JINR, Russia; Gostic, J. M. [Lawrence Livermore National Laboratory (LLNL); Hamilton, Joseph [Vanderbilt University; Henderson, R. [Lawrence Livermore National Laboratory (LLNL); Itkis, M. G. [FLNR-JINR, Russia; Moody, K. [Lawrence Livermore National Laboratory (LLNL); Polyakov, A. N. [Joint Institute for Nuclear Research, Dubna, Russia; Ramayya, A. V. [Vanderbilt University; Roberto, James B [ORNL; Rykaczewski, Krzysztof Piotr [ORNL; Sagaidak, R. N. [Joint Institute for Nuclear Research, Dubna, Russia; Shaughnessy, D. [Lawrence Livermore National Laboratory (LLNL); Shirokovsky, I. V. [Joint Institute for Nuclear Research, Dubna, Russia; Stoyer, M. [Lawrence Livermore National Laboratory (LLNL); Subbotin, V. G. [Joint Institute for Nuclear Research, Dubna, Russia; Sukhov, A. M. [Joint Institute for Nuclear Research, Dubna, Russia; Tsyganov, Yu. S. [Joint Institute for Nuclear Research, Dubna, Russia; Utyonkov, V. [FLNR-JINR, Russia; Voinov, A. A. [Joint Institute for Nuclear Research, Dubna, Russia; Vostokin, G. K. [Joint Institute for Nuclear Research, Dubna, Russia

2012-01-01T23:59:59.000Z

309

Use of ebRIM-based CSW with sensor observation services for registry and discovery of remote-sensing observations  

Science Journals Connector (OSTI)

Recent advances in Sensor Web geospatial data capture, such as high-resolution in satellite imagery and Web-ready data processing and modeling technologies, have led to the generation of large numbers of datasets from real-time or near real-time observations ... Keywords: CSW, Earth observation, Registry, Sensor Web, Sensor observation service

Nengcheng Chen; Liping Di; Genong Yu; Jianya Gong; Yaxing Wei

2009-02-01T23:59:59.000Z

310

EA-1964: National Ecological Observation Network (NEON) | Department of  

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

EA-1964: National Ecological Observation Network (NEON) EA-1964: National Ecological Observation Network (NEON) EA-1964: National Ecological Observation Network (NEON) SUMMARY The National Science Foundation (NSF) prepared an EA that evaluated potential environmental impacts of the proposed National Ecological Observation Network (NEON), a continental-scale network of long-term ecological infrastructure. DOE has evaluated and adopted the NSF EA to cover the NEON Project research activities on the Oak Ridge Reservation, and has issued a finding of no significant impact. PUBLIC COMMENT OPPORTUNITIES None available at this time. DOCUMENTS AVAILABLE FOR DOWNLOAD May 29, 2013 EA-1964: FInding of No Significant Impact National Ecological Observation Network May 29, 2013 EA-1964: Final Environmental Assessment National Ecological Observation Network

311

EA-1964: National Ecological Observation Network (NEON) | Department of  

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

964: National Ecological Observation Network (NEON) 964: National Ecological Observation Network (NEON) EA-1964: National Ecological Observation Network (NEON) SUMMARY The National Science Foundation (NSF) prepared an EA that evaluated potential environmental impacts of the proposed National Ecological Observation Network (NEON), a continental-scale network of long-term ecological infrastructure. DOE has evaluated and adopted the NSF EA to cover the NEON Project research activities on the Oak Ridge Reservation, and has issued a finding of no significant impact. PUBLIC COMMENT OPPORTUNITIES None available at this time. DOCUMENTS AVAILABLE FOR DOWNLOAD May 29, 2013 EA-1964: FInding of No Significant Impact National Ecological Observation Network May 29, 2013 EA-1964: Final Environmental Assessment National Ecological Observation Network

312

NS&T Managment Observations - 1st Quarter  

SciTech Connect (OSTI)

The INL Management Observation Program (MOP) is designed to improve managers and supervisors understanding of work being performed by employees and the barriers impacting their success. The MOP also increases workers understanding of managements’ expectations as they relate to safety, security, quality, and work performance. Management observations (observations) are designed to improve the relationship and trust between employees and managers through increased engagement and interactions between managers and researchers in the field. As part of continuous improvement, NS&T management took initiative to focus on the participation and quality of observations in FY 14. This quarterly report is intended to (a) summarize the participation and quality of management’s observations, (b) assess observations for commonalities or trends related to facility or process barriers impacting research, and (c) provide feedback and make recommendations for improvements NS&T’s MOP.

David Gianotto

2014-06-01T23:59:59.000Z

313

How Are You Observing Energy Awareness Month? | Department of Energy  

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

Are You Observing Energy Awareness Month? Are You Observing Energy Awareness Month? How Are You Observing Energy Awareness Month? October 7, 2010 - 7:30am Addthis October is Energy Awareness Month, and we think a great way to celebrate would be to make an improvement that gets you a tax credit. But there are plenty of other ways you could observe Energy Awareness Month help spread the word about saving energy. So tell us: How are you observing Energy Awareness Month? Each Thursday, you have the chance to share your thoughts on a question about energy efficiency or renewable energy for consumers. Please comment with your answers, and also feel free to respond to other comments. Addthis Related Articles How Will You Observe Energy Awareness Month? What Are You Doing to Fight Climate Change? How Do You Stay Cool and Comfortable in Hot Weather?

314

Calculation of Fission Observables Through Event-by-Event Simulation  

SciTech Connect (OSTI)

The increased interest in more exclusive fission observables has demanded more detailed models. We present here a new computational model, FREYA, that aims to met this need by producing large samples of complete fission events from which any observable of interest can then be extracted consistently, including arbitrary correlations. The various model assumptions are described and the potential utility of the model is illustrated by means of several novel correlation observables.

Randrup, J; Vogt, R

2009-06-04T23:59:59.000Z

315

The low-mass initial mass function of the field population in the Large Magellanic Cloud with Hubble Space Telescope WFPC2 Observations  

E-Print Network [OSTI]

We present V- and I-equivalent HST/WFPC2 stellar photometry of an area in the Large Magellanic Cloud (LMC), located on the western edge of the bar of the galaxy, which accounts for the general background field of its inner disk. The WFPC2 observations reach magnitudes as faint as V=25 mag, and the large sample of more than 80,000 stars allows us to determine in detail the Present-Day Mass Function (PDMF) of the detected main-sequence stars, which is identical to the Initial Mass Function (IMF) for masses M <~ 1 M_solar. The low-mass main-sequence mass function of the LMC field is found not to have a uniform slope throughout the observed mass range, i.e. the slope does not follow a single power law. This slope changes at about 1 M_solar to become more shallow for stars with smaller masses down to the lowest observed mass of ~ 0.7 M_solar, giving clear indications of flattening for even smaller masses. We verified statistically that for stars with M <~ 1 M_solar the IMF has a slope Gamma around -2, with an indicative slope Gamma =~ -1.4 for 0.7 <~ M/M_solar <~ 0.9, while for more massive stars the main-sequence mass function becomes much steeper with Gamma =~ -5. The main-sequence luminosity function (LF) of the observed field is in very good agreement with the Galactic LF as it was previously found. Taking into account several assumptions concerning evolutionary effects, which should have changed through time the stellar content of the observed field, we reconstruct qualitatively its IMF for the whole observed mass range (0.7 <~ M/M_solar <~ 2.3) and we find that the number of observed evolved stars is not large enough to have affected significantly the form of the IMF, which thus is found almost identical to the observed PDMF.

D. Gouliermis; W. Brandner; Th. Henning

2005-08-31T23:59:59.000Z

316

Observation of Entropic Effect on Conformation Changes of Complex...  

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

Entropic Effect on Conformation Changes of Complex Systems Under Well-Controlled Temperature Condition. Observation of Entropic Effect on Conformation Changes of Complex Systems...

317

Untrained Forward Observer (UFO) translator for call for fire .  

E-Print Network [OSTI]

??Many observers need indirect fire but are not proficient in Call for Fire, the procedure used to request indirect fire. To alleviate this, we propose… (more)

King, Regan R.

2013-01-01T23:59:59.000Z

318

Underwater observations of blue-water plankton: Logistics ...  

Science Journals Connector (OSTI)

Apr 28, 1975 ... lines marked at 5-m intervals with metric white markers. Vertical lines are .... Use of a magnetic reed-switch can ... Field observations of the.

2000-01-04T23:59:59.000Z

319

ORNL researchers make first observation of atoms moving inside...  

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

Christopher R. Samoray Communications ORNL researchers make first observation of atoms moving inside bulk material Selected frames from a sequence of scanning transmission electron...

320

Airborne observations of the kinematics and statistics of breaking waves  

E-Print Network [OSTI]

v 3 Observations of wave breaking kinematics in fetch-crest length . . . . . C.6 Wave elevation . . . . . . . .breaking waves in the images . . . . . . . . . . . 3.3.3

Kleiss, Jessica M.

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lowest observed adverse" 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

Observational evidence for poleward expansion of the Hadley circulation  

Science Journals Connector (OSTI)

How the Hadley circulation changes in response to global climate ... consistent and statistically significant poleward expansion of the Hadley circulation in the past few decades is ... independent observational ...

Yongyun Hu ???; Chen Zhou ? ?; Jiping Liu ???

2011-01-01T23:59:59.000Z

322

Millimeter and Near-Infrared Observations of Neptune's Atmospheric Dynamics  

E-Print Network [OSTI]

B Near-Infrared Radiative Transfer Model B.15 Near-Infrared Observations of Neptune’s Clouds with the133 6.2 Near-infrared spectroscopy . . . . . .

Cook, Statia Honora Luszcz

2012-01-01T23:59:59.000Z

323

Aircraft Observations of Sub-cloud Aerosol and Convective Cloud Physical Properties  

E-Print Network [OSTI]

nucleation and Aitken modes. Backtrajectories of Central Mediterranean origin contain a high accumulation mode but low nucleation mode. Eastern Europe backtrajectories have the lowest nucleation mode but exhibit a broad accumulation mode which... are shaped by complex nonlinear processes that are difficult to represent numerically. These processes include nucleation of new particles and evaporation, growth and coagulation of existing particles. Most current models explicitly represent the ASD...

Axisa, Duncan

2011-02-22T23:59:59.000Z

324

Resource Letter: OTS-1: Observations and theory of supernovae  

Science Journals Connector (OSTI)

This Resource Letter provides a guide to the literature on the observations of supernovae and the theory of their explosion mechanisms. Journal articles and books are cited for the following topics: observations of the spectra spectropolarimetry and light curves of supernovae of various types theory of thermonuclear explosions core collapse and radioactive decay applications to cosmology and possible connections to gamma-ray bursts.

J. Craig Wheeler

2003-01-01T23:59:59.000Z

325

62 Bureau of Meteorology Annual Report 201314 Observations and infrastructure  

E-Print Network [OSTI]

resources in the taking and recording of observations. It strategically plans, builds and operates improving delivery efficiencies; and · facilitating both management and cultural change to ensure continued System Strategy; · Observing Network Operations; and · Infrastructure Management. The performance of each

Greenslade, Diana

326

GROUND-BASED AND SPACE-BASED RADIO OBSERVATIONS OF  

E-Print Network [OSTI]

discharge/flash consists of many consecutive strokes) [e.g. Gibbard et al., 1997] LightningGROUND-BASED AND SPACE-BASED RADIO OBSERVATIONS OF PLANETARY LIGHTNING P. Zarka1 , W. Farrell2 , G; Lightning's radio signature Space-based radio observations of planetary lightning Lightning

Demoulin, Pascal

327

High-Energy Flare Observations from the Solar Maximum Mission  

Science Journals Connector (OSTI)

...research-article High-Energy Flare Observations from the Solar Maximum Mission W...Vestrand We review high-energy observations of solar flares with emphasis...expectation, high-energy emission is a common property of solar flares. Direct interpretation...

1991-01-01T23:59:59.000Z

328

Measuring Transactions Costs from Observed Behavior: Market Choices in Peru  

E-Print Network [OSTI]

Measuring Transactions Costs from Observed Behavior: Market Choices in Peru Renos Vakis, Elisabeth these transactions costs. When opportunities exist to sell a crop on alternative markets, the observed choice of market can be used to infer a monetary measure of transactions costs in market participation. The market

Sadoulet, Elisabeth

329

Data augmentation for a Bayesian spatial model involving censored observations  

E-Print Network [OSTI]

Data augmentation for a Bayesian spatial model involving censored observations Brooke L Fridley1 (fax) 1 #12;SUMMARY Spatial environmental data sometimes include below detection limit observations (i. We develop a measurement error Bayesian spatial model for the analysis of spatial data with censored

330

Long-Term Observations of Indoor and Outdoor Radon Concentrations  

Science Journals Connector (OSTI)

......Radiation Protection Dosimetry Article Long-Term Observations of Indoor and Outdoor...Lapere Two sets of data obtained by long-term observations of radon concentration...phosphogypsum was used. Around a nuclear waste storage place containing radium, 22 dosemeters......

J. Uyttenhove; R. Lapere

1988-08-01T23:59:59.000Z

331

ASTRO-F/FIS observing simulation including detector characteristics  

E-Print Network [OSTI]

ASTRO-F/FIS observing simulation including detector characteristics Woong-Seob Jeong a,*, Soojong instruments, the far-infrared surveyor (FIS) will map the entire sky in four bands using short wavelength (SW- oped a suite of software with an aim to simulate the FIS observations (Jeong et al., 2000, 2003, 2004

Pak, Soojong

332

UAV PATH FOLLOWING FOR TARGET OBSERVATION IN WIND  

E-Print Network [OSTI]

UAV PATH FOLLOWING FOR TARGET OBSERVATION IN WIND Rolf Rysdyk, University of Washington, Seattle is affected by wind, aircraft performance, and camera limits. Analytic expressions are derived for paths which, and stability of its integration with aircraft dynamics is assessed. An observer estimates wind data, which

Washington at Seattle, University of

333

ON THINNING METHODS FOR DATA ASSIMILATION OF SATELLITE OBSERVATIONS  

E-Print Network [OSTI]

2B.3 ON THINNING METHODS FOR DATA ASSIMILATION OF SATELLITE OBSERVATIONS T. Ochotta1 C. Gebhardt2 V ABSTRACT Thinning of observational data sets is an essen- tial task in assimilation of satellite data for numer- ical weather forecast. In this work we modify and improve the scheme of so-called estimation

Reiterer, Harald

334

Power line harmonic radiation (PLHR) observed by the DEMETER spacecraft  

E-Print Network [OSTI]

Power line harmonic radiation (PLHR) observed by the DEMETER spacecraft F. Nemec,1,2 O. Santoli´k,3 January 2006; published 22 April 2006. [1] Results of a systematic survey of Power Line Harmonic Radiation from the electric power systems which are magnetically conjugated with the place of observation

Santolik, Ondrej

335

Thermal evolution of Mercury as constrained by MESSENGER observations  

E-Print Network [OSTI]

observations have constrained the rate of radiogenic heat production via measurement of uranium, thorium melting, consistent with MESSENGER observations of the planet's surface chemistry and geology. Citation, provides cru- cial context for interpreting a planet's geological history [e.g., Schubert et al., 2001

Zuber, Maria

336

STATISTICS OF EXTREMES IN CLIMATE: RECONCILING THEORY WITH OBSERVATIONS  

E-Print Network [OSTI]

1 STATISTICS OF EXTREMES IN CLIMATE: RECONCILING THEORY WITH OBSERVATIONS Rick Katz Institute) Unified Modeling of Distributions (6) Resources #12;4 #12;5 (1) Background · Use of Extremal Models -- Stochastic weather generators Improved treatment of extremes #12;6 (2) Observed Tail Behavior · Extreme Value

Katz, Richard

337

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

338

Observation Wells At Mccoy Geothermal Area (DOE GTP) | Open Energy  

Open Energy Info (EERE)

Observation Wells At Mccoy Geothermal Area (DOE GTP) Observation Wells At Mccoy Geothermal Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Observation Wells At Mccoy Geothermal Area (DOE GTP) Exploration Activity Details Location Mccoy Geothermal Area Exploration Technique Observation Wells Activity Date Usefulness not indicated DOE-funding Unknown Notes 4 wells References (1 January 2011) GTP ARRA Spreadsheet Retrieved from "http://en.openei.org/w/index.php?title=Observation_Wells_At_Mccoy_Geothermal_Area_(DOE_GTP)&oldid=402599" Categories: Exploration Activities DOE Funded Activities ARRA Funded Activities What links here Related changes Special pages Printable version Permanent link Browse properties About us Disclaimers Energy blogs Linked Data Developer services

339

Properties of tropical convection observed by ARM millimeter-radars  

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

Properties of tropical convection observed by ARM millimeter-radars Properties of tropical convection observed by ARM millimeter-radars Haynes, John Colorado State University Stephens, Graeme Colorado State University Category: Cloud Properties The results of an analysis of tropical cloud systems observed from a variety of vertically pointing radar systems are described. In particular, observations taken during five years of operation of the ARM millimeter wavelength radar system (MMCR) at Manus Island in the Tropical West Pacific region are characterized into cloud classes according to the radar reflectivity structures of these cloud systems, associated rainfall, and surface radiative properties. These observations of cloud properties are composited with respect to various phases of the Madden Julian Oscillation, which is a dominant mode of variability at Manus Island. A method of better

340

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

Note: This page contains sample records for the topic "lowest observed adverse" 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

Modern cosmology: Interactive computer simulations that use recent observational surveys  

Science Journals Connector (OSTI)

We present a collection of new open-source computational tools for numerically modeling recent large-scale observational data sets using modern cosmology theory. These tools allow both students and researchers to constrain the parameter values in competitive cosmological models thereby discovering both the accelerated expansion of the universe and its composition (e.g. dark matter and dark energy). These programs have several features to help the non-cosmologist build an understanding of cosmological models and their relation to observational data including a built-in collection of several real observational data sets. The current list of built-in observations includes several recent supernovae Type-Ia surveys baryon acoustic oscillations the cosmic microwave background radiation gamma-ray bursts and measurements of the Hubble parameter. In this article we discuss specific results for testing cosmological models using these observational data.

2013-01-01T23:59:59.000Z

342

The physical observer I: Absolute and relative fields  

E-Print Network [OSTI]

Quantum Jet Theory (QJT) is a deformation of QFT where also the quantum dynamics of the observer is taken into account. This is achieved by introducing relative fields, labelled by locations measured by rods relative to the observer's position. In the Hamiltonian formalism, the observer's momentum is modified: p_i \\to p_i - P_i, where P_i is the momentum carried by the field quanta. The free scalar field, free electromagnetism and gravity are treated as examples. Standard QFT results are recovered in the limit that the observer's mass M \\to \\infty and its charge e \\to 0. This limit is well defined except for gravity, because e = M in that case (heavy mass equals inert mass). In a companion paper we describe how QJT also leads to new observer-dependent gauge and diff anomalies, which can not be formulated within QFT proper.

T. A. Larsson

2008-11-06T23:59:59.000Z

343

Simulating AIA observations of a flux rope ejection  

E-Print Network [OSTI]

Extreme ultraviolet (EUV) images from the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamic Observatory (SDO) are providing new insights into the early phase of CME evolution. Observations now show the ejection of magnetic flux ropes from the solar corona and how they evolve into CMEs. These observations are difficult to interpret in terms of basic physical mechanisms and quantities. To fully understand CMEs we need to compare equivalent quantities derived from both observations and theoretical models. To this end we aim to produce synthesised AIA observations from simluations of a flux rope ejection. To carry this out we include the role of thermal conduction and radiative losses, both of which are important for determining the temperature distribution of the solar corona during a CME. We perform a simulation where a flux rope is ejected from the solar corona. From the density and temperature of the plasma in the simulation we synthesise AIA observations. The emission is then integrated along the...

Pagano, Paolo; Poedts, Stefaan

2014-01-01T23:59:59.000Z

344

Observations of Transient Active Region Heating with Hinode  

E-Print Network [OSTI]

We present observations of transient active region heating events observed with the Extreme Ultraviolet Imaging Spectrometer (EIS) and X-ray Telescope (XRT) on Hinode. This initial investigation focuses on NOAA active region 10940 as observed by Hinode on February 1, 2007 between 12 and 19 UT. In these observations we find numerous examples of transient heating events within the active region. The high spatial resolution and broad temperature coverage of these instruments allows us to track the evolution of coronal plasma. The evolution of the emission observed with XRT and EIS during these events is generally consistent with loops that have been heated and are cooling. We have analyzed the most energetic heating event observed during this period, a small GOES B-class flare, in some detail and present some of the spectral signatures of the event, such as relative Doppler shifts at one of the loop footpoints and enhanced line widths during the rise phase of the event. While the analysis of these transient events has the potential to yield insights into the coronal heating mechanism, these observations do not rule out the possibility that there is a strong steady heating level in the active region. Detailed statistical analysis will be required to address this question definitively.

Harry P. Warren; Ignacio Ugarte-Urra; David H. Brooks; Jonathan W. Cirtain; David R. Williams; Hirohisa Harra

2007-11-02T23:59:59.000Z

345

Observer-dependent optical properties of stationary axisymmetric spacetimes  

E-Print Network [OSTI]

The world lines of null particles admit arbitrary parametrizations. In the presence of a family of observers one may introduce along a null world line an extension of the so-called Cattaneo's relative standard time parameter (valid for massive particles) which plays a special role. Another possibility is to use the coordinate time itself as a parameter. The relation between relative standard time and coordinate time allows for the introduction of an observer-dependent optical path and associated refraction index. Both these quantities are studied here working out explicit examples concerning familiar null orbits and observers in black hole spacetimes.

Donato Bini; Fernando de Felice; Andrea Geralico

2014-08-23T23:59:59.000Z

346

ARM - Field Campaign - Routine AAF CLOWD Optical Radiative Observations  

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

govCampaignsRoutine AAF CLOWD Optical Radiative Observations (RACORO) govCampaignsRoutine AAF CLOWD Optical Radiative Observations (RACORO) Campaign Links RACORO Website Related Campaigns Surface Radiation Comparison Transfer Measurements for RACORO 2009.01.20, Long, SGP Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Routine AAF CLOWD Optical Radiative Observations (RACORO) 2009.01.22 - 2009.06.30 Website : http://acrf-campaign.arm.gov/racoro/ Lead Scientist : Andrew Vogelmann For data sets, see below. Description The ARM Aerial Facility (AAF) supported the Routine AAF Clouds with Low Optical Water Depths (CLOWD) Optical Radiative Observations (RACORO) field campaign, led by principal investigator Andrew Vogelmann. During this long-term campaign, the AAF conducted routine flights at the ACRF Southern

347

How Will You Observe Energy Awareness Month? | Department of Energy  

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

Observe Energy Awareness Month? Observe Energy Awareness Month? How Will You Observe Energy Awareness Month? October 1, 2009 - 7:00am Addthis October is Energy Awareness Month! This year's theme, "A Sustainable Energy Future; Putting All the Pieces Together," encourages you to see yourself as a piece of a larger puzzle-fitting into the big picture, shaping our energy future, and moving our nation toward energy independence. Learn more about Energy Awareness Month and how you can download or order materials to help spread the word. How will you observe Energy Awareness Month? Each Thursday, you have the chance to share your thoughts on a question about energy efficiency or renewable energy for consumers. Please comment with your answers, and also feel free to respond to other comments.

348

ARM - News from the Biomass Burn Observation Project  

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

Project (BBOP)News from the Biomass Burn Observation Project Related Links BBOP Home Outreach News & Press Backgrounder (PDF, 2.1MB) Images ARM flickr site ARM Data Discovery...

349

Observation of suppressed terahertz absorption in photoexcited graphene  

E-Print Network [OSTI]

When light is absorbed by a semiconductor, photoexcited charge carriers enhance the absorption of far-infrared radiation due to intraband transitions. We observe the opposite behavior in monolayer graphene, a zero-gap ...

Frenzel, Alex James

350

Observations of Gamma-Ray Bursts at Extreme Energies  

E-Print Network [OSTI]

of Gamma-Ray Bursts . . . . . . . . . . . . . Redshift-CRUZ OBSERVATIONS OF GAMMA-RAY BURSTS AT EXTREME ENERGIES AAncient Unvierse with Gamma-Ray Bursts, pages 330–333. AIP,

Aune, Taylor

2012-01-01T23:59:59.000Z

351

Real time observations of the nucleation and growth of nanowires...  

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

Real time observations of the nucleation and growth of nanowires and nanotubes December 1, 2011 at 3pm36-428 Eric Stach Center for Functional Nanomaterials, Brookhaven National...

352

ARM - Field Campaign - Observations and Modeling of the Green...  

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

Parsivel2 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...

353

Observations of Gamma-Ray Bursts at Extreme Energies.  

E-Print Network [OSTI]

??Gamma-ray bursts (GRBs), thought to be produced by the core-collapse of massive stars or merging compact objects, are the most luminous events observed since the… (more)

Aune, Taylor

2012-01-01T23:59:59.000Z

354

Optical technologies for the observation of low Earth orbit objects  

E-Print Network [OSTI]

In order to avoid collisions with space debris, the near Earth orbit must be continuously scanned by either ground- or spaced-based facilities. For the low Earth orbit, radar telescopes are the workhorse for this task, especially due to their continuous availability. However, optical observation methods can deliver complementary information, especially towards high accuracy measurements. Passive-optical observations are inexpensive and can yield very precise information about the apparent position of the object in the sky via comparison with background stars. However, the object's distance from the observer is not readily accessible, which constitutes a major drawback of this approach for the precise calculation of the orbital elements. Two experimental methods have been devised to overcome this problem: Using two observatories a few kilometres apart, strictly simultaneous observations of the same object yield an accurate, instantaneous 3D position determination through measurement of the parallax. If only on...

Hampf, Daniel; Riede, Wolfgang

2015-01-01T23:59:59.000Z

355

Observer-based fault detection for nuclear reactors  

E-Print Network [OSTI]

This is a study of fault detection for nuclear reactor systems. Basic concepts are derived from fundamental theories on system observers. Different types of fault- actuator fault, sensor fault, and system dynamics fault ...

Li, Qing, 1972-

2001-01-01T23:59:59.000Z

356

Gamma-ray Energy Spectra Observed around a Nuclear Reactor  

Science Journals Connector (OSTI)

......Energy Spectra Observed around a Nuclear Reactor Yoshiyuki Nakashima * Susumu Minato...Katsurayama ** * Department of Nuclear Engineering, Faculty of Engineering...Nagoya, Japan ** Reseach Reactor Institute, Kyoto Univ., Kumatori-cho......

Yoshiyuki Nakashima; Susumu Minato; Minoru Kawano; Tadashi Tsujimoto; Kousuke Katsurayama

1971-09-01T23:59:59.000Z

357

Information-Disturbance Theorem for Mutually Unbiased Observables  

E-Print Network [OSTI]

We derive a novel version of information-disturbance theorems for mutually unbiased observables. We show that the information gain by Eve inevitably makes the outcomes by Bob in the conjugate basis not only erroneous but random.

Takayuki Miyadera; Hideki Imai

2006-02-05T23:59:59.000Z

358

Observations on the JWKB treatment of the quadratic barrier  

E-Print Network [OSTI]

Observations on the JWKB treatment of the quadratic barrier Hujun Shen1 and Harris J. Silverstone2 June, 2006. Accepted 11 July, 2006. #12;238 Hujun Shen and Harris J. Silverstone where ±x0 = ± -2E

Silverstone, Harris J.

359

Millimeter and Near-Infrared Observations of Neptune's Atmospheric Dynamics  

E-Print Network [OSTI]

Steffes 1996) and a solar abundance or less of NH 3 (RomaniSteffes 1996) and using a solar abundance of nitrogen in NHof 0.1 times the solar abundance, from observations of the

Cook, Statia Honora Luszcz

2012-01-01T23:59:59.000Z

360

Analysis of Convergence Boundaries Observed during IHOP_2002  

Science Journals Connector (OSTI)

An analysis of six convergence boundaries observed during the International H2O Project (IHOP_2002) is presented. The detailed kinematic and thermodynamic structure of these boundaries was examined using data collected by an airborne Doppler ...

Roger M. Wakimoto; Hanne V. Murphey

2010-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "lowest observed adverse" 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

Unknown Input Observers and Fault Tolerant Control Allocation Andrea Cristofaro  

E-Print Network [OSTI]

objectives [3] [13] [17] , such as power or fuel consumption minimization. On the other hand, usually in order to make relevant faults observable. The case study of an overactuated marine vessel supports

Johansen, Tor Arne

362

Observable fast kinetic eigenmode in binary noble-gas mixtures  

SciTech Connect (OSTI)

It is suggested that a fast kinetic mode should be observable in a whole class of disparate mass fluid mixtures, such as gaseous He-Xe, by neutron scattering experiments, at not too high densities and Xe concentrations.

Campa, A.; Cohen, E.G.D.

1988-08-15T23:59:59.000Z

363

On Magnetical Observations in Germany, Norway, and Russia  

Science Journals Connector (OSTI)

1837-1843 research-article On Magnetical Observations in Germany, Norway, and Russia Major Sabine The Royal Society is collaborating with JSTOR to digitize, preserve, and extend access to Abstracts of the Papers...

1837-01-01T23:59:59.000Z

364

Terahertz photometer to observe solar flares in continuum  

E-Print Network [OSTI]

Solar observations at sub-THz frequencies detected a new flare spectral component peaking in the THz range, simultaneously with the well known microwaves component, bringing challenging constraints for interpretation. Higher THz frequencies observations are needed to understand the nature of the mechanisms occurring in flares. A THz photometer system was developed to observe outside the terrestrial atmosphere on stratospheric balloons or satellites, or at exceptionally transparent ground stations. The telescope was designed to observe the whole solar disk detecting small relative changes in input temperature caused by flares at localized positions. A Golay cell detector is preceded by low-pass filters to suppress visible and near IR radiation, a band-pass filter, and a chopper. A prototype was assembled to demonstrate the new concept and the system performance. It can detect temperature variations smaller than 1 K for data sampled at a rate of 10/second, smoothed for intervals larger than 4 seconds. For a 76 ...

Marcon, Rogerio; Fernandes, Luis Olavo T; Godoy, Rodolfo; Marun, Adolfo; Bortolucci, Emilio C; Zakia, Maria Beny; Diniz, José Alexandre; Kudaka, Amauri S

2011-01-01T23:59:59.000Z

365

Observations onSchistosoma intercalatum in south-east gabon  

Science Journals Connector (OSTI)

Observations were made in the field and laboratory to determine the strain characteristics ofSchistosoma intercalatum in south-east Gabon. For an isolate from Franceville, data...S. intercalatum as known from sou...

D. S. Brown; C. Sarfati; V. R. Southgate; G. C. Ross…

1984-01-01T23:59:59.000Z

366

Observation of Two New ? [subscript b][superscript ?] Baryon Resonances  

E-Print Network [OSTI]

Two structures are observed close to the kinematic threshold in the ?[0 over b]?[superscript -] mass spectrum in a sample of proton-proton collision data, corresponding to an integrated luminosity of 3.0??fb[superscript ...

Aaij, R.

367

Observing Healthcare Interior Environments and the Effect on Patient Behavior  

E-Print Network [OSTI]

variables in the interior environments that have the greatest impact, whether positive or negative, on patients. The methods used to perform this research include: inspections of the facility, observations, and surveys. By combining all of these methods...

Rice, Courtney R.

2010-07-14T23:59:59.000Z

368

Designed for: Ocean Observing Demo: A collaboration between  

E-Print Network [OSTI]

off of Fire Island, NY. The Wave Glider records data on the wind, water temperature and salinity pressure, temperature and sound velocity. The Wave Glider is an autonomous ocean observing platform

369

Global Observation of Forest and Land Cover Dynamics Michael Brady  

E-Print Network [OSTI]

in a weather forecasting sense ­ Costs ­ Satellite acquisition strategies · Different definitions and protocols satellite observing systems to support fire management, policy decision- making, and global change research

370

Observing Warm Clouds in 3D Using ARM Scanning Cloud  

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

Observing Warm Clouds in 3D Using ARM Scanning Cloud Radars and a Novel Ensemble Method For original submission and image(s), see ARM Research Highlights http:www.arm.gov...

371

Observable signatures of general relativistic dynamics in compact binaries  

E-Print Network [OSTI]

The effects of general relativity (GR) in astrophysical systems are often difficult to calculate, but they can have important consequences for observables. This thesis considers the impact of previously-ignored GR effects ...

Lang, Ryan N. (Ryan Nathan)

2009-01-01T23:59:59.000Z

372

Observation of New Charmless Decays of Bottom Hadrons  

E-Print Network [OSTI]

We search for new charmless decays of neutral b hadrons to pairs of charged hadrons, using 1??fb[superscript -1] of data collected by the CDF II detector at the Fermilab Tevatron. We report the first observation of the ...

Xie, Si

373

Reducing Inconsistencies in Point Observations of Maximum Flood Inundation Level  

Science Journals Connector (OSTI)

Flood simulation models and hazard maps are only as good as the underlying data against which they are calibrated and tested. However, extreme flood events are by definition rare, so the observational data of flood inundation extent are limited in ...

Brandon L. Parkes; Hannah L. Cloke; Florian Pappenberger; Jeff Neal; David Demeritt

2013-08-01T23:59:59.000Z

374

A multisensory observer model for human spatial orientation perception  

E-Print Network [OSTI]

Quantitative "observer" models for spatial orientation and eye movements have been developed based on 1-G data from humans and animals (e.g. Oman 1982, 1991, Merfeld, et al 1993, 2002; Haslwanter 2000, Vingerhoets 2006). ...

Newman, Michael C. (Michael Charles)

2009-01-01T23:59:59.000Z

375

High temperature plasma in? Lyrae, observed fromCopernicus  

Science Journals Connector (OSTI)

High-resolution ultraviolet spectrophotometry of the complex close binary system? Lyrae was performed with the Princeton Telescope Spectrometer onCopernicus.... Observations were made at phases 0.0, 0.25, 0.5, an...

Yoji Kondo; Margherita Hack; John B. Hutchings…

1975-12-01T23:59:59.000Z

376

Is there a maximum observable redshift in an open universe?  

E-Print Network [OSTI]

An estimate of the maximum observable redshift is obtained using only t_{0} approximately equal to (14+- 3)10^{9}years, H_{0} approximately equal to 65 +- 10Km\\sec^{-1}Mpc^{-1}(t_{0}H_{0} approximately equal to 0.91 +- 0.08/0.18) assuming \\Lambda approximately equal to 0. The resulting maximum redshift z_{+} approximately equal to 10 appears to give a reasonable upper limit to the highest actually observed redshifts. Some implications are discussed.

J. A. Gonzalo

2000-10-10T23:59:59.000Z

377

Observation of the uranium 235 nuclear magnetic resonance signal (*)  

E-Print Network [OSTI]

before. We report here the first NMR observation of 23SU. The uranium hexafluoride has been chosenL-1017 Observation of the uranium 235 nuclear magnetic resonance signal (*) H. Le Bail, C. Chachaty signal de résonance magnétique nucléaire de l'isotope 235 de l'uranium est présentée. Elle a été

Paris-Sud XI, Université de

378

Recommended observational skills training for IAEA safeguards inspections. Final report: Recommended observational skills training for IAEA safeguards inspections  

SciTech Connect (OSTI)

This is the second of two reports prepared to assist the International Atomic Energy Agency (IAEA or Agency) in enhancing the effectiveness of its international safeguards inspections through inspector training in {open_quotes}Observational Skills{close_quotes}. The first (Phase 1) report was essentially exploratory. It defined Observational Skills broadly to include all appropriate cognitive, communications, and interpersonal techniques that have the potential to help IAEA safeguards inspectors function more effectively. It identified 10 specific Observational Skills components, analyzed their relevance to IAEA safeguards inspections, and reviewed a variety of inspection programs in the public and private sectors that provide training in one or more of these components. The report concluded that while it should be possible to draw upon these other programs in developing Observational Skills training for IAEA inspectors, the approaches utilized in these programs will likely require significant adaption to support the specific job requirements, policies, and practices that define the IAEA inspector`s job. The overall objective of this second (Phase 2) report is to provide a basis for the actual design and delivery of Observational Skills training to IAEA inspectors. The more specific purposes of this report are to convey a fuller understanding of the potential application of Observational Skills to the inspector`s job, describe inspector perspectives on the relevance and importance of particular Observational Skills, identify the specific Observational Skill components that are most important and relevant to enhancing safeguards inspections, and make recommendations as to Observational Skills training for the IAEA`s consideration in further developing its Safeguards training program.

Toquam, J.L.; Morris, F.A.

1994-09-01T23:59:59.000Z

379

OBSERVATIONS OF RECONNECTING FLARE LOOPS WITH THE ATMOSPHERIC IMAGING ASSEMBLY  

SciTech Connect (OSTI)

Perhaps the most compelling evidence for the role of magnetic reconnection in solar flares comes from the supra-arcade downflows that have been observed above many post-flare loop arcades. These downflows are thought to be related to highly non-potential field lines that have reconnected and are propagating away from the current sheet. We present new observations of supra-arcade downflows taken with the Atmospheric Imaging Assembly (AIA) on the Solar Dynamics Observatory (SDO). The morphology and dynamics of the downflows observed with AIA provide new evidence for the role of magnetic reconnection in solar flares. With these new observations we are able to measure downflows originating at larger heights than in previous studies. We find, however, that the initial velocities measured here ({approx}144 km s{sup -1}) are well below the Alfven speed expected in the lower corona, and consistent with previous results. We also find no evidence that the downflows brighten with time, as would be expected from chromospheric evaporation. These observations suggest that simple two-dimensional models cannot explain the detailed observations of solar flares.

Warren, Harry P.; Sheeley, Neil R. Jr. [Space Science Division, Naval Research Laboratory, Washington, DC 20375 (United States); O'Brien, Casey M. [Also at Massachusetts Institute of Technology, Cambridge, MA 02139, USA. (United States)

2011-12-01T23:59:59.000Z

380

A cooperative control algorithm for camera based observational systems.  

SciTech Connect (OSTI)

Over the last several years, there has been considerable growth in camera based observation systems for a variety of safety, scientific, and recreational applications. In order to improve the effectiveness of these systems, we frequently desire the ability to increase the number of observed objects, but solving this problem is not as simple as adding more cameras. Quite often, there are economic or physical restrictions that prevent us from adding additional cameras to the system. As a result, we require methods that coordinate the tracking of objects between multiple cameras in an optimal way. In order to accomplish this goal, we present a new cooperative control algorithm for a camera based observational system. Specifically, we present a receding horizon control where we model the underlying optimal control problem as a mixed integer linear program. The benefit of this design is that we can coordinate the actions between each camera while simultaneously respecting its kinematics. In addition, we further improve the quality of our solution by coupling our algorithm with a Kalman filter. Through this integration, we not only add a predictive component to our control, but we use the uncertainty estimates provided by the filter to encourage the system to periodically observe any outliers in the observed area. This combined approach allows us to intelligently observe the entire region of interest in an effective and thorough manner.

Young, Joseph G.

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lowest observed adverse" 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

Dynamics and variability of the plasmasphere observed from synchronous orbit  

SciTech Connect (OSTI)

The behavior of the cold ions in the outer plasmasphere is studied using data obtained with the magnetospheric plasma analyzers from multiple geosynchronous satellites. Dense (10-100 cm{sup {minus}3}), cold ({approx}1 eV) regions of plasma are often observed at geosynchronous orbit; in this study the authors refer to these as plasmaspheric intervals. The duration, local time of observation, density variability, and temperature behavior within these regions often depend in a systematic way on geomagnetic and substorm activity. With increasing geomagnetic activity (as indicated by Kp) the plasmaspheric regions are generally observed over shorter durations and at earlier local times. With increasing substorm activity (as indicated by geosynchronous energetic electron injections) the density becomes increasingly variable in these regions. Occasionally, up to order-of-magnitude density variations are observed over several minute timescales corresponding to regions with physical dimensions on the order of 1000 km or less. The appearance of these short-duration, cold-plasma intervals is strongly correlated with energetic ion and electron signatures both at the spacecraft making the plasmaspheric observations and at other spacecraft observing simultaneously in the midnight region. Such energetic particle signatures are indicative of the growth and expansive phase of geomagnetic substorms. The authors conclude that the appearance of these short-duration, plasmaspheric intervals is due to a reconfiguration of the duskside magnetosphere during geomagnetic substorms.

Moldwin, M.B.; Thomsen, M.F.; McComas, D.J.; Reeves, G.D.

1994-11-01T23:59:59.000Z

382

The Role of Global Observations for Climate and Other Applications  

SciTech Connect (OSTI)

Most of the current earth-observing systems have been designed primarily for the needs of weather forecasting. Weather forecasting is an initial condition problem; the success of the forecast is heavily dependent on the quality of the specified initial state of the atmosphere. Thus, weather forecasting observing systems tend to focus on determining the 3D values of the state variables of the system namely temperature, humidity, and wind vector. While weather forecasting requires accurate observations, spatial patterns and relative accuracy across those patterns are the primary concern. Climate, on the other hand, is a boundary condition problem, i.e., climate simulation depends on knowing the energy fluxes into and out of the system, and quantities such as CO2 that affect the flow of those energy fluxes in the system. Consequently, climate-observing systems must extend beyond measurements of state variables to flux measurements of radiation energy and water. We focus on these two cycles because the dominant forms of energy transfer in the climate system (solar energy, thermal infrared energy, evaporation, and condensation) involve these two quantities. Further, because climate is a search for small system trends and imbalances in the midst of large weather variability, climate observations require a much higher degree of precision than do weather observations.

T.P. Ackerman

2005-05-01T23:59:59.000Z

383

The Role of Global Observations for Climate and Other Applications  

SciTech Connect (OSTI)

Most of the current earth-observing systems have been designed primarily for the needs of weather forecasting. Weather forecasting is an initial condition problem; the success of the forecast is heavily dependent on the quality of the specified initial state of the atmosphere. Thus, weather forecasting observing systems tend to focus on determining the 3D values of the state variables of the system – namely temperature, humidity, and wind vector. While weather forecasting requires accurate observations, spatial patterns and relative accuracy across those patterns are the primary concern. Climate, on the other hand, is a boundary condition problem, i.e., climate simulation depends on knowing the energy fluxes into and out of the system, and quantities such as CO2 that affect the flow of those energy fluxes in the system. Consequently, climate-observing systems must extend beyond measurements of state variables to flux measurements of radiation energy and water. We focus on these two cycles because the dominant forms of energy transfer in the climate system (solar energy, thermal infrared energy, evaporation, and condensation) involve these two quantities. Further, because climate is a search for small system trends and imbalances in the midst of large weather variability, climate observations require a much higher degree of precision than do weather observations.

Ackerman, TP

2005-05-01T23:59:59.000Z

384

High-sensitivity observations of solar flare decimeter radiation  

E-Print Network [OSTI]

A new acousto-optic radio spectrometer has observed the 1 - 2 GHz radio emission of solar flares with unprecedented sensitivity. The number of detected decimeter type III bursts is greatly enhanced compared to observations by conventional spectrometers observing only one frequency at the time. The observations indicate a large number of electron beams propagating in dense plasmas. For the first time, we report weak, reversed drifting type III bursts at frequencies above simultaneous narrowband decimeter spikes. The type III bursts are reliable signatures of electron beams propagating downward in the corona, apparently away from the source of the spikes. The observations contradict the most popular spike model that places the spike sources at the footpoints of loops. Conspicuous also was an apparent bidirectional type U burst forming a fish-like pattern. It occurs simultaneously with an intense U-burst at 600-370 MHz observed in Tremsdorf. We suggest that it intermodulated with strong terrestrial interference (cellular phones) causing a spurious symmetric pattern in the spectrogram at 1.4 GHz. Symmetric features in the 1 - 2 GHz range, some already reported in the literature, therefore must be considered with utmost caution.

Arnold O. Benz; Peter Messmer; Christian Monstein

2000-12-05T23:59:59.000Z

385

Observed Southern Ocean Cloud Properties and Shortwave Reflection. Part I: Calculation of SW Flux from Observed Cloud Properties  

Science Journals Connector (OSTI)

The sensitivity of the reflection of shortwave radiation over the Southern Ocean to the cloud properties there is estimated using observations from a suite of passive and active satellite instruments in combination with radiative transfer ...

Daniel T. McCoy; Dennis L. Hartmann; Daniel P. Grosvenor

386

A Study of the Forcing of the 22–25 June 2006 Coastally Trapped Wind Reversal Based on Numerical Simulations and Aircraft Observations  

E-Print Network [OSTI]

Coastally trapped wind reversals (CTWRs) occur periodically in the lowest several hundred meters of the marine boundary layer west of California and disrupt the northerly flow that typically occurs during summer. South ...

Rahn, David A.; Parish, Thomas R.

2008-12-01T23:59:59.000Z

387

NuSTAR Observations of X-Ray Binaries  

E-Print Network [OSTI]

As of 2014 August, the Nuclear Spectroscopic Telescope Array (NuSTAR) had observed ~30 X-ray binaries either as part of the planned program, as targets of opportunity, or for instrument calibration. The main science goals for the observations include probing the inner part of the accretion disk and constraining black hole spins via reflection components, providing the first observations of hard X-ray emission from quiescent Low Mass X-ray Binaries (LMXBs), measuring cyclotron lines from accreting pulsars, and studying type I X-ray bursts from neutron stars. Here, we describe the science objectives in more depth and give an overview of the NuSTAR observations that have been carried out to achieve the objectives. These include observation of four "IGR" High Mass X-ray Binaries (HMXBs) discovered by INTEGRAL. We also summarize the results that have been obtained and their implications. Among the IGR HMXBs, we focus on the discovery of a cyclotron line in the spectrum of IGR J17544-2619.

Tomsick, John A; Fuerst, Felix; Harrison, Fiona; Miyasaka, Hiromasa; Tendulkar, Shriharsh; Bhalerao, Varun; Chakrabarty, Deepto; King, Ashley; Miller, Jon M; Natalucci, Lorenzo; Stern, Daniel

2015-01-01T23:59:59.000Z

388

The 2012 Hubble Ultra Deep Field (UDF12): Observational Overview  

E-Print Network [OSTI]

We present the 2012 Hubble Ultra Deep Field campaign (UDF12), a large 128-orbit Cycle 19 \\HST\\ program aimed at extending previous WFC3/IR observations of the UDF by quadrupling the exposure time in the F105W filter, imaging in an additional F140W filter, and extending the F160W exposure time by 50%. The principal scientific goal of this project is to determine whether galaxies reionized the universe; our observations are designed to provide a robust determination of the star formation density at $z$$\\,\\gtrsim\\,$8, improve measurements of the ultraviolet continuum slope at $z$$\\,\\sim\\,7\\,-\\,$8, facilitate the construction of new samples of $z$$\\,\\sim\\,9\\,-\\,$10 candidates, and enable the detection of sources up to $z$$\\,\\sim\\,$12. For this project we committed to combining these and other WFC3/IR imaging observations of the UDF area into a single homogeneous dataset, to provide the deepest near-infrared observations of the sky currently achievable. In this paper we present the observational overview of the pr...

Koekemoer, Anton M; McLure, Ross J; Dunlop, James S; Robertson, Brant E; Ono, Yoshiaki; Schenker, Matthew A; Ouchi, Masami; Bowler, Rebecca A A; Rogers, Alexander B; Curtis-Lake, Emma; Schneider, Evan; Charlot, Stephane; Stark, Daniel P; Furlanetto, Steven R; Cirasuolo, Michele; Wild, V; Targett, T

2012-01-01T23:59:59.000Z

389

Detection of CFIRB with AKARI/FIS Deep Observations  

E-Print Network [OSTI]

The Cosmic Far-Infrared Background (CFIRB) contains information about the number and distribution of contributing sources and thus gives us an important key to understand the evolution of galaxies. Using a confusion study to set a fundamental limit to the observations, we investigate the potential to explore the CFIRB with AKARI/FIS deep observations. The Far-Infrared Surveyor (FIS) is one of the focal-plane instruments on the AKARI (formerly known as ASTRO-F) satellite, which was launched in early 2006. Based upon source distribution models assuming three different cosmological evolutionary scenarios (no evolution, weak evolution, and strong evolution), an extensive model for diffuse emission from infrared cirrus, and instrumental noise estimates, we present a comprehensive analysis for the determination of the confusion levels for deep far-infrared observations. We use our derived sensitivities to suggest the best observational strategy for the AKARI/FIS mission to detect the CFIRB fluctuations. If the source distribution follows the evolutionary models, observations will be mostly limited by source confusion. We find that we will be able to detect the CFIRB fluctuations and that these will in turn provide information to discriminate between the evolutionary scenarios of galaxies in most low-to-medium cirrus regions.

Woong-Seob Jeong; Chris P. Pearson; Hyung Mok Lee; Shuji Matsuura; Mitsunobu Kawada; Takao Nakagawa; Sang Hoon Oh; Mai Shirahata; Sungho Lee; Ho Seong Hwang; Hideo Matsuhara

2007-05-14T23:59:59.000Z

390

Collaboration yields 'The Right Glasses' for observing mystery behavior  

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

Observing mystery behavior In electrons Observing mystery behavior In electrons Collaboration yields 'The Right Glasses' for observing mystery behavior in electrons The research may lead to a better understanding of superconductors or development of better materials for powering high-speed electronics. December 13, 2007 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy

391

Observations on A Technology Roadmap for Generation IV Nuclear Energy  

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

Observations on A Technology Roadmap for Generation IV Nuclear Observations on A Technology Roadmap for Generation IV Nuclear Energy Systems: Technical Roadmap Report Observations on A Technology Roadmap for Generation IV Nuclear Energy Systems: Technical Roadmap Report The development of advanced nuclear energy systems in the U.S. will depend greatly on the continued success of currently operating light water nuclear power plants and the ordering of new installations in the short term. DOE needs to give those immediate objectives the highest priority and any additional support they require to assure their success. DOE is pursuing two initiatives to encourage a greater use of nuclear energy systems. The initiatives have been reviewed by NERAC Subcommittee on Generation IV Technology Planning (GRNS) and they are: * A Near Term Development (NTD) Roadmap which is in the process of being

392

ARM - Field Campaign - Biomass Burning Observation Project - BBOP  

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

govCampaignsBiomass Burning Observation Project - BBOP govCampaignsBiomass Burning Observation Project - BBOP Campaign Links BNL BBOP Website ARM Aerial Facility Payload Science Plan Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Biomass Burning Observation Project - BBOP 2013.07.01 - 2013.10.24 Website : http://campaign.arm.gov/bbop/ Lead Scientist : Larry Kleinman For data sets, see below. Description This field campaign will address multiple uncertainties in aerosol intensive properties, which are poorly represented in climate models, by means of aircraft measurements in biomass burning plumes. Key topics to be investigated are: Aerosol mixing state and morphology Mass absorption coefficients (MACs) Chemical composition of non-refractory material associated with

393

Title: Radar-observed convective characteristics during TWP-ICE  

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

Title: Radar-observed convective characteristics during TWP-ICE Title: Radar-observed convective characteristics during TWP-ICE Schumacher, Courtney Texas A&M University Houze, Robert University of Washington May, Peter Bureau or Meteorology Research Centre Frederick, Kaycee Cetrone, Jasmine Vallgren, Andreas Category: Field Campaigns This poster will describe the radar dataset obtained in the Tropical Warm Pool International Cloud Experiment (TWP-ICE), which is to take place 20 January - 14 February 2006 in the vicinity of Darwin, Australia. We will describe the convective systems observed during the project by two scanning C-band Doppler radars, one of which will provide dual-polarization measurements, and ARM's vertically pointing cloud radar and lidar installations. In addition, we will discuss the potential for combining

394

Temporal Velocity Variations beneath the Coso Geothermal Field Observed  

Open Energy Info (EERE)

Velocity Variations beneath the Coso Geothermal Field Observed Velocity Variations beneath the Coso Geothermal Field Observed using Seismic Double Difference Tomography of Compressional and Shear Wave Arrival Times Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Temporal Velocity Variations beneath the Coso Geothermal Field Observed using Seismic Double Difference Tomography of Compressional and Shear Wave Arrival Times Details Activities (1) Areas (1) Regions (0) Abstract: Microseismic imaging can be an important tool for characterizing geothermal reservoirs. Since microseismic sources occur more or less continuously both due to the operations of a geothermal field and the naturally occurring background seismicity, passive seismic monitoring is well suited to quantify the temporal variations in the vicinity of a

395

Observation of a Macroscopically Quantum-Entangled Insulator  

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

Observation of a Macroscopically Observation of a Macroscopically Quantum-Entangled Insulator Observation of a Macroscopically Quantum-Entangled Insulator Print Wednesday, 27 May 2009 00:00 It has recently been proposed that insulators with large band gaps and strong spin-orbit coupling can host a new phase of quantum matter called a topological insulator that is characterized by entangled wavefunctions. The proposal has now been realized by an international collaboration led by researchers from Princeton University who studied the electronic structure of insulating alloys of bismuth and antimony by means of angle-resolved photoemission spectroscopy (ARPES) and spin-resolved ARPES. Their results constitute the first direct experimental evidence of a topological insulator in nature that is fully quantum entangled. In the future, a detailed study of topological order and quantum entanglement using their method can potentially pave the way for fault-tolerant (topological) quantum computing.

396

ARM - Publications: Science Team Meeting Documents: Observations of Natural  

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

Observations of Natural Variability in Marine Stratocumulus Clouds Observations of Natural Variability in Marine Stratocumulus Clouds Albrecht, Bruce University of Miami Kollias, Pavlos RSMAS/University of Miami Jo, Ieng Rosentiel School of Marine & Atmospheric Science Ghate, Virendra RSMAS/Univ. Miami Serpetzoglou, Efthymious Minnis, Patrick NASA Langley Research Center Sun-Mack, Szedung SAIC Large to mesoscale features affecting the albedo of marine stratocumulus clouds are observed frequently and can have a substantial impact on the overall albedo of the subtropical cloud decks. One such naturally occurring feature-defined as a cloud rift-is characterized as a large-scale, persistent area of broken, low reflectivity stratocumulus clouds usually surrounded by a solid deck of stratocumulus. We review results from a

397

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

398

Genuine CP-odd Observables at the LHC  

E-Print Network [OSTI]

We discuss how to construct genuine CP-odd observables at the LHC. We classify the observables according to the even and odd properties under the naive T-transformation (\\hat{T}). There are two classes of observables of our interests: CP-odd and \\hat{T}-even; CP-odd and \\hat{T}-odd. We expect them to have broad applications to many processes in theories beyond Standard Model with CP violation. For the purpose of illustration, we use simple example of W+W- production and subsequent decays at the LHC, where the CP violation effects are parameterized by effective CP-violating operators of WWZ coupling. We find significant sensitivity to the CP-odd couplings.

Tao Han; Yingchuan Li

2009-11-16T23:59:59.000Z

399

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

400

Fermi GBM Observations of Terrestrial Gamma-ray Flashes  

SciTech Connect (OSTI)

Terrestrial Gamma-ray Flashes are short pulses of energetic radiation associated with thunderstorms and lightning. While the Gamma-ray Burst Monitor (GBM) on Fermi was designed to observe gamma-ray bursts, its large BGO detectors are excellent for observing TGFs. Using GBM, TGF pulses are seen to either be symmetrical or have faster rise time than fall times. Some TGFs are resolved into double, partially overlapping pulses. Using ground-based radio observations of lightning from the World Wide Lightning Location Network (WWLLN), TGFs and their associated lightning are found to be simultaneous to {approx_equal}40 {mu} s. The lightning locations are typically within 300 km of the sub-spacecraft point.

Briggs, Michael S. [CSPAR, NSSTC, 320 Sparkman Drive, Huntsville, AL 35805 (United States)

2011-09-21T23:59:59.000Z

Note: This page contains sample records for the topic "lowest observed adverse" 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

Wideband noise observed at ground level in the auroral region  

SciTech Connect (OSTI)

A sideband noise event was detected at ground level from the Andoya Rocket Range in Norway in January 1989. The signals were observed on four commercial communication receivers (tuned to 159, 515, 905, and 1200 kHz), an ionosonde (200-kHz to 3.5-MHz interference-free observations) and a riometer (32.5 MHz). The event, which occurred during a period of magnetic disturbance near magnetic midnight, was the only one observed during nearly 3 weeks of operations. This low frequency-of-occurrence is attributed partly to high local noise levels. The ease with which this event was identified on the ionograms produced by the local ionosonde suggests that routine ionosonde recordings should be inspected in search for such events. Such an effort would enhance existing research directed toward developing techniques for identifying quiet communication channels and help to identify the origin and frequency-of-occurrence of high-latitude wideband noise events. 20 refs.

Benson, R.F.; Desch, M.D. (NASA, Goddard Space Flight Center, Greenbelt, MD (United States))

1991-08-01T23:59:59.000Z

402

Testing protostellar disk formation models with ALMA observations  

E-Print Network [OSTI]

Abridged: Recent simulations have explored different ways to form accretion disks around low-mass stars. We aim to present observables to differentiate a rotationally supported disk from an infalling rotating envelope toward deeply embedded young stellar objects and infer their masses and sizes. Two 3D magnetohydrodynamics (MHD) formation simulations and 2D semi-analytical model are studied. The dust temperature structure is determined through continuum radiative transfer RADMC3D modelling. A simple temperature dependent CO abundance structure is adopted and synthetic spectrally resolved submm rotational molecular lines up to $J_{\\rm u} = 10$ are simulated. All models predict similar compact components in continuum if observed at the spatial resolutions of 0.5-1$"$ (70-140 AU) typical of the observations to date. A spatial resolution of $\\sim$14 AU and high dynamic range ($> 1000$) are required to differentiate between RSD and pseudo-disk in the continuum. The peak-position velocity diagrams indicate that the...

Harsono, Daniel; Bruderer, Simon; Li, Zhi-Yun; Jorgensen, Jes

2015-01-01T23:59:59.000Z

403

Observational Constraints of New Variable Modified Chaplygin Gas Model  

E-Print Network [OSTI]

Assuming the flat FRW universe in Einstein's gravity filled with New Variable Modified Chaplygin gas (NVMCG) dark energy and dark matter having negligible pressure. In this research work we analyze the viability on the basis of recent observation. Hubble parameter $H$ is expressed in terms of the observable parameters $H_0$, $\\Omega_m^0$ and the model parameters $A_0$, $B_0$, $C_0$, $m$, $n$, $\\alpha$ and the red shift parameter $z$. Here we find a best fitted parameter range of $A_0$, $B_0$ keeping $0\\leq \\alpha \\leq 1$ and using Stern data set (12 points) by minimizing the $\\chi^2$ test at 66%, 90% and 99% confidence levels. Next we do the joint analysis with BAO and CMB observations. Again evaluating the distance modulus $\\mu(z)$ vs redshift ($z$) curve obtained in the model NVMCG with dark matter with the best fitted value of the parameters and comparing with that derived from the union2 compilation data.

Jhumpa Bhadra; Ujjal Debnath

2012-11-09T23:59:59.000Z

404

On surface temperature, greenhouse gases, and aerosols: models and observations  

SciTech Connect (OSTI)

The effect of changes in atmospheric carbon dioxide concentrations and sulphate aerosols on near-surface temperature is investigated using a version of the Hadley Centre atmospheric model coupled to a mixed layer ocean. The scattering of sunlight by sulphate aerosols is represented by appropriately enhancing the surface albedo. On doubling atmospheric carbon dioxide concentrations, the global mean temperature increases by 5.2 K. An integration with a 39% increase in CO{sub 2}, giving the estimated change in radiative heating due to increases in greenhouse gases since 1900, produced an equilibrium warming of 2.3 K, which, even allowing for oceanic inertia, is significantly higher than the observed warming over the same period. Furthermore, the simulation suggests a substantial warming everywhere, whereas the observations indicate isolated regions of cooling, including parts of the northern midlatitude continents. The addition of an estimate of the effect of scattering by current industrial aerosols (uncertain by a factor of at least 3) leads to improved agreement with the observed pattern of changes over the northern continents and reduces the global mean warming by about 30%. Doubling the aerosol forcing produces patterns that are still compatible with the observations, but further increase leads to unrealistically extensive cooling in the midlatitudes. The diurnal range of surface temperature decreases over most of the northern extratropics on increasing CO{sub 2}, in agreement with recent observations. The addition of the current industrial aerosol had little detectable effect on the diurnal range in the model because the direct effect of reduced solar heating at the surface is approximately balanced by the indirect effects of cooling. Thus, the ratio of the reduction in diurnal range to the mean warming is increased, in closer agreement with observations. Results from further sensitivity experiments with larger increases in aerosol and CO{sub 2} are presented.

Mitchell, J.F.B.; Davis, R.A.; Ingram, W.J.; Senior, C.A. [Hadley Centre for Climate Prediction and Research, Berkshire (United Kingdom)] [Hadley Centre for Climate Prediction and Research, Berkshire (United Kingdom)

1995-10-01T23:59:59.000Z

405

Observing CP Violation in Many-Body Decays  

E-Print Network [OSTI]

It is well known that observing CP violation in many-body decays could provide strong evidence for physics beyond the Standard Model. Many searches have been carried out; however, no 5sigma evidence for CP violation has yet been found in these types of decays. A novel model-independent method for observing CP violation in many-body decays is presented in this paper. It is shown that the sensitivity of this method is significantly larger than those used to-date.

Mike Williams

2011-05-26T23:59:59.000Z

406

The physical observer II: Gauge and diff anomalies  

E-Print Network [OSTI]

In a companion paper we studied field theory in the presence of a physical observer with quantum dynamics. Here we describe the most striking consequence of this assumption: new gauge and diff anomalies arise. The relevant cocycles depend on the observer's spacetime trajectory and can hence not appear in QFT, where this quantity is never introduced. Diff anomalies necessarily arise in every locally nontrivial, non-holographic theory of quantum gravity. Cancellation of the divergent parts of the anomalies only works if spacetime has four dimensions.

T. A. Larsson

2008-11-06T23:59:59.000Z

407

Negative compressibility observed in graphene containing resonant impurities  

SciTech Connect (OSTI)

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

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

2013-05-20T23:59:59.000Z

408

Observation of diamond turned OFHC copper using Scanning Tunneling Microscopy  

SciTech Connect (OSTI)

Diamond turned OFHC copper samples have been observed within the past few months using the Scanning Tunneling Microscope. Initial results have shown evidence of artifacts which may be used to better understand the diamond turning process. The STM`s high resolution capability and three dimensional data representation allows observation and study of surface features unobtainable with conventional profilometry systems. Also, the STM offers a better quantitative means by which to analyze surface structures than the SEM. This paper discusses findings on several diamond turned OFHC copper samples having different cutting conditions. Each sample has been cross referenced using STM and SEM.

Grigg, D.A.; Russell, P.E.; Dow, T.A.

1988-12-01T23:59:59.000Z

409

Properties of solar gravity mode signals in total irradiance observations  

SciTech Connect (OSTI)

Further evidence has been found that a significant fraction of the gravity mode power density in the total irradiance observations appears in sidebands of classified eigenfrequencies. These sidebands whose amplitudes vary from year to year are interpreted as harmonics of the rotational frequencies of the nonuniform solar surface. These findings are for non axisymmetric modes and corroborate the findings of Kroll, Hill and Chen for axisymmetric modes. It is demonstrated the the generation of the sidebands lifts the usual restriction on the parity of the eigenfunctions for modes detectable in total irradiance observations. 14 refs.

Kroll, R.J.; Chen, J.; Hill, H.A.

1988-01-01T23:59:59.000Z

410

Field-ion microscopy observation of single-walled carbon  

Science Journals Connector (OSTI)

Field-ion microscopy (FIM), a tool for surface analysis with atomic resolution, has been employed to observe the end structure of single-walled carbon nanotubes (SWCNTs). FIM images revealed the existence of open SWCNT ends. Amorphous carbon atoms were also observed to occur around SWCNTs and traditional field evaporation failed to remove them. Heat treatment was found to be efficacious in altering the end structures of SWCNT bundles. Carbon and oxygen atoms released from heated tungsten filament are believed to be responsible for the decoration imposed on the SWCNT ends.

Zhang Zhao-Xiang; Zhang Geng-Min; Du Min; Jin Xin-Xi; Hou Shi-Min; Sun Jian-Ping; Gu Zhen-Nan; Zhao Xing-Yu; Liu Wei-Min; Wu Jin-Lei; Xue Zeng-Quan

2002-01-01T23:59:59.000Z

411

Dynamical Observations of Local Bio-molecular Sites Using Nanocrystals  

SciTech Connect (OSTI)

Recently, we succeeded time-resolved x-ray observations of picometer-scale slow Brownian motions of individual protein molecules in aqueous solutions. In this work, we investigated the relationship between individual protein molecules and the labeled nanocrystals. In order to control the number of the bonding sites on the labeled gold nanocrystals, we utilized both the periodical structure in Actin filaments and using the mercury compound. As a result, we observed free Brownian Motions of the C-terminal in F-actin, when single gold nanocrystal is linked to single G-actin.

Sasaki, Yuji C.; Okumura, Yasuaki [Bio-medical Group, SPring-8/Japan Synchrotron Radiation Research Institute, Mikazuki, Hyogo 679-5198 (Japan); Sasaki -team, Japan Science and Technology Corporation (JST/CREST), Tachikawa 190-0012 (Japan); Ohishi, Noboru [Sasaki -team, Japan Science and Technology Corporation (JST/CREST), Tachikawa 190-0012 (Japan); Biotechnology Research Center, Teikyo University, Miyamae, Kawasaki 216-0001 (Japan)

2004-05-12T23:59:59.000Z

412

HALO GAS AND GALAXY DISK KINEMATICS DERIVED FROM OBSERVATIONS AND LAMBDACDM SIMULATIONS OF Mg II ABSORPTION-SELECTED GALAXIES AT INTERMEDIATE REDSHIFT  

SciTech Connect (OSTI)

We obtained ESI/Keck rotation curves of 10 Mg II absorption-selected galaxies (0.3 <= z <= 1.0) for which we have WFPC-2/HST images and high-resolution HIRES/Keck and UVES/VLT quasar spectra of the Mg II absorption profiles. We perform a kinematic comparison of these galaxies and their associated halo Mg II absorption. For all 10 galaxies, the majority of the absorption velocities lie in the range of the observed galaxy rotation velocities. In 7/10 cases, the absorption velocities reside fully to one side of the galaxy systemic velocity and usually align with one arm of the rotation curve. In all cases, a constant rotating thick-disk model poorly reproduces the full spread of observed Mg II absorption velocities when reasonably realistic parameters are employed. In 2/10 cases, the galaxy kinematics, star formation surface densities, and absorption kinematics have a resemblance to those of high-redshift galaxies showing strong outflows. We find that Mg II absorption velocity spread and optical depth distribution may be dependent on galaxy inclination. To further aid in the spatial-kinematic relationships of the data, we apply quasar absorption-line techniques to a galaxy (v{sub c} = 180 km s{sup -1}) embedded in LAMBDACDM simulations. In the simulations, Mg II absorption selects metal-enriched 'halo' gas out to {approx}100 kpc from the galaxy, tidal streams, filaments, and small satellite galaxies. Within the limitations inherent in the simulations, the majority of the simulated Mg II absorption arises in the filaments and tidal streams and is infalling toward the galaxy with velocities between -200 km s{sup -1} <= v{sub r} <= -180 km s{sup -1}. The Mg II absorption velocity offset distribution (relative to the simulated galaxy) spans {approx}200 km s{sup -1} with the lowest frequency of detecting Mg II at the galaxy systematic velocity.

Kacprzak, Glenn G.; Murphy, Michael T. [Swinburne University of Technology, Victoria 3122 (Australia); Churchill, Christopher W.; Ceverino, Daniel; Klypin, Anatoly [New Mexico State University, Las Cruces, NM 88003 (United States); Steidel, Charles C., E-mail: gkacprzak@astro.swin.edu.a, E-mail: mmurphy@astro.swin.edu.a, E-mail: cwc@nmsu.ed, E-mail: ceverino@nmsu.ed, E-mail: aklypin@nmsu.ed, E-mail: ceverino@phys.huji.ac.i, E-mail: ccs@astro.caltech.ed [California Institute of Technology, Pasadena, CA 91125 (United States)

2010-03-10T23:59:59.000Z

413

Meteor observations by the Arecibo 430 \\{MHz\\} incoherent scatter radar. II. Results from time-resolved observations  

Science Journals Connector (OSTI)

We report high time resolution observations using the powerful Arecibo incoherent scatter radar (ISR). The majority of the meteor-like echoes observed lasted less than 50 ms at one range gate, although echoes lasting for a second were also occasionally observed. The latter may not necessarily be associated with meteors. Most of the meteor echoes in our observations have an effective radar cross-section of the order of 3 × 10?8m2, and an estimated electron line density (ELD) of the order of 4 × 109/m. The visual magnitude is approximately + 16, which is about two orders of magnitude fainter than the meteor echoes found in our time-integrated data (Zhou et al., 1995). The average echo power is positively correlated with the number of range bins in which an echo is detected. This characteristic, along with other experimental evidence, strongly suggests that the Arecibo 430 \\{MHz\\} radar is more sensitive to head-on meteors than to those arriving at an oblique angle. Although classical underdense scattering mechanisms may account for echoes having short range extensions, it is clear that they are insufficient to explain echoes having long range extensions. Some possible mechanisms are discussed. In particular, we suggest that Bragg scattering due to the irregular structure existing in a meteor trail is the most important scattering mechanism for the latter type of echoes in our observations. A plasma instability operating near the Arecibo wavelength is required.

Qihou H. Zhou; Michael C. Kelley

1997-01-01T23:59:59.000Z

414

Quantifying global marine isoprene fluxes using MODIS chlorophyll observations  

E-Print Network [OSTI]

, with considerable spatial and temporal variability, resulting in a global annual total of 0.1 Tg C/yr. Air vegetation [Guenther et al., 1995], with the tropics responsible for most of the global annual total ($500 TgQuantifying global marine isoprene fluxes using MODIS chlorophyll observations Paul I. Palmer

Palmer, Paul

415

Laser Altimeter Observations from MESSENGER's First Mercury Flyby  

E-Print Network [OSTI]

REPORT Laser Altimeter Observations from MESSENGER's First Mercury Flyby Maria T. Zuber,1 * David E Barnouin-Jha,8 John K. Harmon10 A 3200-kilometers-long profile of Mercury by the Mercury Laser Altimeter compensated. Sampled craters on Mercury are shallower than their counterparts on the Moon, at least in part

Hauck II, Steven A.

416

MESSENGER observations of magnetopause structure and dynamics at Mercury  

E-Print Network [OSTI]

MESSENGER observations of magnetopause structure and dynamics at Mercury Gina A. DiBraccio,1 James December 2012; accepted 10 January 2013; published 1 March 2013. [1] On 18 March 2011, MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) became the first spacecraft to orbit Mercury

Salzman, Daniel

417

Interferometric observations of large biologically interesting interstellar and cometary molecules  

Science Journals Connector (OSTI)

...chemistry to the solar system can...methanol. Major obstacles to understanding...had enough energy to knock off...stars (>10 solar masses...activation energy to overcome...However, a major obstacle to observational...chemistry to the solar system can...methanol. Major obstacles to understanding...

Lewis E. Snyder

2006-01-01T23:59:59.000Z

418

Observation of conical electron distributions over Martian crustal magnetic fields  

E-Print Network [OSTI]

]. Although the main obstacle to the solar wind is the Martian ionosphere, the strong crustal magnetic fields. The energy spectra of the conics exhibit substantial decreases in all energy levels in relation (draped IMF direction, solar wind pressure, and EUV flux) do not affect the observation of the events

California at Berkeley, University of

419

Planetary Radio Astronomy Observations from Voyager 2 Near Jupiter  

Science Journals Connector (OSTI)

...5 ~ m"~ ~ BND MHz with a 200-kHz...04 to nearly I MHz. It is composed...sult presents a p plasma torus, Voyager...78 59 40 20 ry large electric fields...bottom). The plasma resonances observed...frequency at 1 MHz in this region...regions of very large electric field...

J. B. PEARCE; A. C. RIDDLE; J. W. WARWICK; J. K. ALEXANDER; M. D. DESCH; M. L. KAISER; J. R. THIEMAN; T. D. CARR; S. GULKIS; A. BOISCHOT; Y. LEBLANC; B. M. PEDERSEN; D. H. STAELIN

1979-11-23T23:59:59.000Z

420

Circle criterion observer for a compression system Bjrnar Bhagen  

E-Print Network [OSTI]

.gravdahl@itk.ntnu.no Abstract-- Observers for a compression system using turbo compressors are derived for a model that captures speed. Results are validated by simulations. I. MOTIVATION Compression systems using turbo compressors, centrifugal or axial, are exposed to the phenomenons of surge and rotating stall. Surge is an axisymmtrical

Gravdahl, Jan Tommy

Note: This page contains sample records for the topic "lowest observed adverse" 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

Observation time scale, free-energy landscapes, and molecular symmetry  

E-Print Network [OSTI]

Observation time scale, free-energy landscapes, and molecular symmetry David J. Walesa,1 and Peter structures that interconvert on a given time scale are lumped together, the corresponding free-energy surface that are connected by free-energy barriers below a certain threshold. We illustrate this time dependence for some

Salamon, Peter

422

VOLUNTARY OBSERVING SHIPS (VOS) CLIMATE SUBSET PROJECT (VOSCLIM) PROJECT DOCUMENT  

E-Print Network [OSTI]

. Data management procedures 8. Project management 9. Information exchange Attachment 1: ScientificWMO IOC JCOMM VOLUNTARY OBSERVING SHIPS (VOS) CLIMATE SUBSET PROJECT (VOSCLIM) PROJECT DOCUMENT #12 Attachment 5: List of focal points Attachment 7: Preliminary action plan #12;PROJECT DOCUMENT

423

Observables in the decays of B to two vector mesons  

Science Journals Connector (OSTI)

In general there are nine observables in the decay of a B meson to two vector mesons defined in terms of polarization correlations of these mesons. Only six of these can be detected via the subsequent decay angular distributions because of parity conservation in those decays. The remaining three require the measurement of the spin polarization of one of the decay products.

Cheng-Wei Chiang and Lincoln Wolfenstein

2000-03-10T23:59:59.000Z

424

Observation of critical slowing down close to a roughening transition (*)  

E-Print Network [OSTI]

L-159 Observation of critical slowing down close to a roughening transition (*) L. Puech, B. Hebral growing process, close to the roughening transition of the facet (TR ~ 215 mK). These times exhibit the existence of a so-called « Roughening-Transition » on the fluid-solid interface of pure com- pounds, studies

Boyer, Edmond

425

Collaborative Spectrum Sensing from Sparse Observations in Cognitive Radio Networks  

E-Print Network [OSTI]

1 Collaborative Spectrum Sensing from Sparse Observations in Cognitive Radio Networks Jia (Jasmine for the implementation of cognitive radio. Collaborative spectrum sensing among the cognitive radio nodes is expected to improve the ability of checking complete spectrum usage. Due to hardware limitations, each cognitive radio

Yin, Wotao

426

Expanding the Discovery Potential of VERITAS via Moonlight Observations  

SciTech Connect (OSTI)

This grant partially supported the base research efforts of the Smithsonian Astrophysical Observatory (SAO), Very-High-Energy (VHE; E > 100 GeV) gamma-ray research group from 8/1/09 to 7/31/14. During the project period, the SAO gamma-ray group carried out a wide-range of research efforts, but focused on VHE observations of extragalactic sources with VERITAS. The SAO group led or co-lead nearly all VERITAS extragalactic working groups and the observations addressed themes in Particle Physics and Fundamental Laws, Cosmology, and Black Holes. The primary topics of this research were processes in exotic galaxies, especially active galactic nuclei and starburst galaxies, which have implications for cosmology and Lorentz invariance violation, as well as indirect dark matter detection via VERITAS observations of dwarf spheroidal galaxies. In addition, the SAO group let the development of unique capabilities for VERITAS to observe during all periods of moonlight. Overall, this has increased the VERITAS data yield by 60% and these data are both scientifically useful and regularly published. This grant funded research that led to contributions towards the publication of 51 refereed journal articles during the project period, including several led by, or with significant contributions from, the SAO group.

Benbow, Wystan R. [PI

2014-10-27T23:59:59.000Z

427

Are we observing Lorentz violation in gamma ray bursts?  

E-Print Network [OSTI]

From recent observations of gamma-ray bursts (GRBs), it appears that spectral time lags between higher-energy gamma rays photons and lower-energy photons vary with energy difference and time (distance) traveled. These lags appear to be smaller for the most luminous (close) bursts but larger for the fainter (farther away) bursts. From this observation, it has been suggested that it might be possible to determine the distance (L) these bursts have traveled from these time lags alone, without performing any red-shift measurements. These observed spreads (dispersion) of high-energy electromagnetic pulses of different energies with time contradict the special theory of relativity (STR). However, extended theories (ET) of the STR have been developed that contain a dispersive term, predicting the above observations. An example of such an ET is presented, allowing us to derive a relationship between time lags of gamma rays of different energies and distance L traveled from their origin. In addition, this theory predicts the origin of X-ray flashes.

Theodore G. Pavlopoulos

2005-08-12T23:59:59.000Z

428

Gamma ray bursts observed with WATCH?EURECA  

Science Journals Connector (OSTI)

The WATCH wide field x?ray monitor has the capability of independently locating bright Gamma Ray Bursts to 1° accuracy. We report the preliminary positions of 12 Gamma Ray Bursts observed with the WATCH monitor flown on the ES spacecraft EURECA during its 11 month mission. Also the recurrence of the Soft Gamma Repeater SGR 1900+14 in 1992 is verified.

S. Brandt; N. Lund; A. J. Castro?Tirado

1994-01-01T23:59:59.000Z

429

Some Observational Aspects of R Coronae Borealis Stars  

E-Print Network [OSTI]

Some of the observational aspects related to the evolutionary status and dust production in R Cor Bor stars are discussed. Recent work regarding the surface abundances, stellar winds and evidence for dust production in these high luminosty hydrogen deficient stars are also reviewed. Possibility of the stellar winds being maintained by surface magnetic fields is also considered.

N. Kameswara Rao

2007-12-24T23:59:59.000Z

430

Observation of the radiative decay D*+-> D+gamma  

E-Print Network [OSTI]

We have observed a signal for the decay D*(+) --> D(+)gamma at a significance of 4 standard deviations. From the measured branching ratio B(D*(+) --> D(+)gamma)/B(D*(+) --> D(+)pi(0)) = 0.055 +/- 0.014 +/- 0.010 we find B(D*(+) --> D(+)gamma) = 0...

Ammar, Raymond G.; Baringer, Philip S.; Bean, Alice; Besson, David Zeke; Coppage, Don; Darling, C.; Davis, Robin E. P.; Kotov, S.; Kravchenko, I.; Kwak, Nowhan; Zhou, L.

1998-05-01T23:59:59.000Z

431

Usage Codes Observer code Vessel code Trip ID  

E-Print Network [OSTI]

Usage Codes 1 5 2 6 3 7 4 8 Observer code Vessel code Trip ID Permit holder name/address Permit / N MMSI No. Y / N Present? Usage Water capacity (m3): Fuel capacity: m3 / tonnes Other: Other: Kw all that apply & note types of materials for each) Capacity: Usage Incinerator: Net mensuration Y / N

432

Usage Codes Observer code Vessel code Trip ID  

E-Print Network [OSTI]

Usage Codes 1 5 2 6 3 7 4 8 Sonar Observer code Vessel code Trip ID Additional Information KHz: RPM / Other _______________Global Registry ID:MMSI No. Permit expiration (dd-mm- yy): Y / N Present? Usage contact Diver / dive equipment Usage Manufacturer Hull mounted / towed Catch Y / N Other: Y / N Y / NOther

433

Global observations of desert dust and biomass burning aerosols  

E-Print Network [OSTI]

Global observations of desert dust and biomass burning aerosols Martin de Graaf KNMI #12; Outline · Absorbing Aerosol Index - Theory · Absorbing Aerosol Index - Reality · Biomass burning.6 Biomass burning over Angola, 09 Sep. 2004 Absorbing Aerosol Index PMD image #12;biomass burning ocean

Graaf, Martin de

434

Observationally based assessment of polar amplification of global warming  

E-Print Network [OSTI]

Observationally based assessment of polar amplification of global warming Igor V. Polyakov,1) are similar, and do not support the predicted polar amplification of global warming. The possible moderating amplification of global warming. Intrinsic arctic variability obscures long-term changes, limiting our ability

Bhatt, Uma

435

Coastal Underwater Field Observer with Remote IP Access  

E-Print Network [OSTI]

and network capacity Significant challenge to reconcile energy consumption of hardware and communications Observer 9/16/09 Low Tide High Tide #12;Boston University Slideshow Title Goes Here Underwater Enclosure Prototype Testing Sealing Low Tide Simulation High Tide Simulation Result: NO Leakage Costal Underwater

436

Air–Water Momentum Flux Observations over Shoaling waves  

Science Journals Connector (OSTI)

This paper drab, with simultaneous momentum flux observations from four towers placed at different depths along a shore-normal line at the west end of Lake Ontario, Canada. The towers were at nominal depths of 12, 8, 4, and 2 m, in order to study ...

F. Anctil; M. A. Donelan

1996-07-01T23:59:59.000Z

437

Mirror Mode Structures in the Solar Wind: STEREO Observations  

E-Print Network [OSTI]

Mirror Mode Structures in the Solar Wind: STEREO Observations O. Enríquez-Rivera1 , X. Blanco-Cano1 Autónoma de México, Coyoacán, D.F., 04510, MEXICO 2. Institute of Geophysics and Planetary Physics of California, Berkeley, CA 94720, USA Abstract. Mirror mode structures occur in the solar wind either

California at Berkeley, University of

438

Gamma-Ray Burst Observations by Pioneer Venus Orbiter  

Science Journals Connector (OSTI)

...observed spectra appear to be consistent with dNI dE-exp [-E(keV)/150] [where...Scientific Laboratory, Los Alamos, New Mexico 87545 R. E. SPALDING Sandia Laboratories, Albuquerque, New Mexico 87115 References and Notes 1. R. W...

W. D. EVANS; J. P. GLORE; R. W. KLEBESADEL; J. G. LAROS; E. R. TECH; R. E. SPALDING

1979-07-06T23:59:59.000Z

439

An integrated view of data quality in Earth observation  

Science Journals Connector (OSTI)

...to a Theme Issue e-Science-towards the cloud...While our data quality management approach is in the domain of...methodologies for data quality management can be applied to wider...observation (EO) is the science of measurement of all...

2013-01-01T23:59:59.000Z

440

Observations of Comet b 1881 made at Monte Video  

Science Journals Connector (OSTI)

... 1881 Royal Astronomical Society. Provided by the NASA Astrophysics Data System 14 July 1881 research-article Articles Observations of Comet b 1881 made at Monte Video Lieut. B. E. W. Gwynne R.A. 1881MNRAS..41..438G...

B. E. W. Gwynne

1881-07-14T23:59:59.000Z

Note: This page contains sample records for the topic "lowest observed adverse" 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

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

442

Observations and Theories of Langmuir Circulation: A Story of Mixing  

E-Print Network [OSTI]

occasion to review the history of this field of study. An underlying theme here is that the study interdisciplinary history; the first half of this work is a brief and eclectic review of this. Much of the research recent observations and the nature of this unexplained variability. 1 Introduction The oceanic surface

Smith, Jerome A.

443

Ram Pressure Stripping in Groups: Comparing Theory and Observations  

E-Print Network [OSTI]

Ram pressure stripping may be the dominant mechanisms driving the evolution of galaxy colors in groups and clusters. In this paper, an analytic model of ram pressure stripping is confronted with observations of galaxy colors and star formation rates in groups using a group catalog drawn from the Sloan Digital Sky Survey. An observed increase in the fraction of galaxies residing on the red sequence, the red fraction, with both increasing group mass, $M_{gr}$, and decreasing satellite luminosity, $L_{sat}$, is predicted by the model. The size of the differences in the red fraction can be understood in terms of the effect of the scatter in satellite and cluster morphologies and satellite orbits on the relationship between $M_{gr}$ and $L_{sat}$ and the stripped gas fraction. Observations of the group galaxies' H$\\delta$ and 4000\\AA break spectral measures and a comparison of the distribution of $SFR/M_{\\ast}$ for star forming galaxies in the groups and in isolation both indicate that the color differences observed in the groups are the result of slowly declining SFRs, as expected if the color change is driven by stripping of the outer H \\textsc{i} disk.

J. A. Hester

2006-10-03T23:59:59.000Z

444

Controlling Minimally-Actuated Vehicles for Applications in Ocean Observation  

E-Print Network [OSTI]

of ocean currents to compute a path between prescribed waypoints that has the highest likelihood to achieve reliable trajectories, as their motion is dictated more by external forces (ocean currents) thanControlling Minimally-Actuated Vehicles for Applications in Ocean Observation Ryan N. Smith

Smith, Ryan N.

445

INTEGRATING THE OCEAN OBSERVING SYSTEM: MOBILE PLATFORMS Dean Roemmich(1)  

E-Print Network [OSTI]

/AOML, 4301 Rickenbacker Causeway, Miami FL 33149 USA, Email: rick.lumpkin@noaa.gov (12) Center for Ocean, including oxygen, chlorophyll-A, and particulate organic carbon, and coordination with shipboard and moored. The observing system infrastructure must evolve in parallel with the system's scope and complexity. Expanded

446

1. ABSTRACT Clouds substantially affect the observed infrared  

E-Print Network [OSTI]

initial guess Clouds vary over orders from BT difference between observed of magnitude and Jacobians of clouds 4. TESTING ASSUMPTIONS: FORWARD MODEL ERRORS * Comparing model that includes scattering (CHARTS heights and optical depths can be adequately modeled by our approach 3. ASSUMPTIONS / APPROACH In order

447

First observation of the decay B-0 -> D*D+*(-)  

E-Print Network [OSTI]

We have observed four fully reconstructed B-0 --> D*+D*- candidates in 5.8 x 10(6) Y(4S) --> B (B) over bar decays recorded with the CLEO detector. The background is estimated to be 0.31 +/- 0.10 events. The probability that the background could...

Ammar, Raymond G.; Baringer, Philip S.; Bean, Alice; Besson, David Zeke; Coppage, Don; Davis, Robin E. P.; Kotov, S.; Kravchenko, I.; Kwak, Nowhan; Zhou, L.

1999-04-01T23:59:59.000Z

448

XRAY OBSERVATIONS OF THE YOUNG OPEN CLUSTER i SCULPTORIS  

E-Print Network [OSTI]

to the cluster main sequence and deduce a distance modulus of 6.9 (i.e. a distance of 240 pc) and a color excess magnetic activity on young stars. Lithium observations indicate that i Sculptoris has an age similar

449

Observation of the top quark with the DO detector  

SciTech Connect (OSTI)

The DO Collaboration reports on the observation of the top quark in p{bar p} collisions at {radical}s = 1.8 TeV at the Fermilab Tevatron. We measure the top quark mass to be 199{sub -21}{sup -19}(stat){sub -21}{sup +14}(syst.) GeV/c{sup 2} and its production cross section to be 6.4 {+-}2.2 pb. Our result is based on approximately 50 pb{sup -1} of data. We observe 17 events with an expected background of 3.8 {+-} 0.6 events. The probability of an upward fluctuation of the background to produce the observed signal is 2 x 10{sup -6} (equivalent to 4.6 standard deviations). The kinematic properties of the events are consistent with top quark decay, and the distribution of events across the seven decay channels is consistent with the Standard Model top quark branching fractions. We describe the analysis that led to the observation of the top quark as well as the properties of the top quark events.

Hadley, N.J. [Univ. of Maryland, College Park, MD (United States)

1997-01-01T23:59:59.000Z

450

Loop Quantum Gravity Phenomenology: Linking Loops to Observational Physics  

E-Print Network [OSTI]

Research during the last decade demonstrates that effects originating on the Planck scale are currently being tested in multiple observational contexts. In this review we discuss quantum gravity phenomenological models and their possible links to loop quantum gravity. Particle frameworks, including kinematic models, broken and deformed Poincar\\'e symmetry, non-commutative geometry, relative locality and generalized uncertainty principle, and field theory frameworks, including Lorentz violating operators in effective field theory and non-commutative field theory, are discussed. The arguments relating loop quantum gravity to models with modified dispersion relations are reviewed, as well as, arguments supporting the preservation of local Lorentz invariance. The phenomenology related to loop quantum cosmology is briefly reviewed, with a focus on possible effects that might be tested in the near future. As the discussion makes clear, there remains much interesting work to do in establishing the connection between the fundamental theory of loop quantum gravity and these specific phenomenological models, in determining observational consequences of the characteristic aspects of loop quantum gravity, and in further refining current observations. Open problems related to these developments are highlighted. characteristic aspects of loop quantum gravity, and in further refining current observations. Open problems related to these developments are highlighted.

Florian Girelli; Franz Hinterleitner; Seth A. Major

2012-12-13T23:59:59.000Z

451

Observations onCebus capucinus in Southwestern Panama  

Science Journals Connector (OSTI)

Observations onCebus capucinus in 10 forests in Chiriqui, Panama, are reported. Troop size ranged from...Cebus. The troop’s daily path length was approximately 1.6 to 2.5 km and their home range was between 32 an...

John D. Baldwin; Janice I. Baldwin

1977-10-01T23:59:59.000Z

452

Variability in active galactic nuclei: confrontation of models with observations  

Science Journals Connector (OSTI)

......flux. The time-scale of the light variation corresponds to the...However, observations of quasar light curves imply time-scales of...parameter sets to produce simulated light curves from which they can evaluate...had come to be known as the Christmas tree model (Pica Smith 1983......

M.R.S. Hawkins

2002-01-01T23:59:59.000Z

453

Observations from The EV Project in Q4 2013  

SciTech Connect (OSTI)

This is a summary report for The EV Project 4th quarter 2013 reports. It describes electric vehicle driver driving and charging behavior observed in Q4. It is the same report as the previously approved/published Q3 2013 report, only the numbers have been updated. It is for public release and does not have limited distribution.

John Smart

2014-02-01T23:59:59.000Z

454

Evaluating regional emission estimates using the TRACE-P observations  

E-Print Network [OSTI]

Evaluating regional emission estimates using the TRACE-P observations G. R. Carmichael,1 Y. Tang,1. Wang,6 D. R. Blake,7 E. Atlas,8 A. Fried,8 B. Potter,9 M. A. Avery,10 G. W. Sachse,10 S. T. Sandholm,11 the NASA Transport and Chemical Evolution over the Pacific (TRACE-P) experiment are used in conjunction

Clarke, Antony

455

Review Article Imaging and observing the electrical Moho  

E-Print Network [OSTI]

Review Article Imaging and observing the electrical Moho Alan G. Jones Dublin Institute Electrical Moho Electrical conductivity Electrical resistivity Crust­mantle boundary Defining the depth on crustal and mantle rocks suggest that there should be a concomitant step-lie change in electrical

Jones, Alan G.

456

Information Theory and Observational Limitations in Decision Making  

E-Print Network [OSTI]

#12;Information Theory and Observational Limitations in Decision Making David H. Wolpert Santa Fe: Hedonic utility, risk attitudes, S-shaped utility, decision theory, constrained obser- vation, bounded for formalizing and analyzing the problem faced by a Decision Maker (DM) working under information

457

ASTRO-F/FIS Observing Simulation Including Detector Characteristics  

E-Print Network [OSTI]

ASTRO-F/FIS Observing Simulation Including Detector Characteristics Woong-Seob Jeong1, Soojong Pak1 simulations to examined the detector characteristics on the FIS instrument (Far- Infrared Surveyor) images narrow and wide bands using a short wavelength (SW) and long wavelength (LW) detector array. The FIS (Far

Lee, Hyung Mok

458

Dark energy and dark matter from cosmological observations  

E-Print Network [OSTI]

The present status of our knowledge about the dark matter and dark energy is reviewed. Bounds on the content of cold and hot dark matter from cosmological observations are discussed in some detail. I also review current bounds on the physical properties of dark energy, mainly its equation of state and effective speed of sound.

Steen Hannestad

2005-09-13T23:59:59.000Z

459

Correspondence Laboratory observations of debris-bearing ice facies frozen  

E-Print Network [OSTI]

, others argue that supercooling is not the only mechanism for producing thick basal ice sequencesCorrespondence Laboratory observations of debris-bearing ice facies frozen from supercooled water. Supercooling has been invoked to explain anomalously thick basal ice sequences beneath temperate glaciers

Knight, Peter G.

460

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

Note: This page contains sample records for the topic "lowest observed adverse" 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

OBSERVATIONS ON THE WEB AND BEHAVIOR OF WENDILGARDA SPIDERS  

E-Print Network [OSTI]

OBSERVATIONS ON THE WEB AND BEHAVIOR OF WENDILGARDA SPIDERS (ARANEAE: THERIDIOSOMATIDAE that theridiosomatids spin modified orb-webs, but only the web of the holarctic Theridiosoma gemmosum (C. L. Koch) has the unusual webs ofsome tropical theridio- somatid spiders that the senior author later identified

Mathis, Wayne N.

462

8) Equatorial waves a)Observations in the low stratosphere  

E-Print Network [OSTI]

speed. Phase lines inclined eastward when altitude increases indicating upward propation Signal End on May 11 #12;Zonal wind Meridional wind a) Observation in the low stratosphere A balloon trip field) Westward phase propagation but eastward group propagation Phase lines inclined westward Signal

Spiga, Aymeric

463

DESIGN OF THE GREAT LAKES OBSERVING SYSTEM ENTERPRISE ARCHITECTURE  

E-Print Network [OSTI]

DESIGN OF THE GREAT LAKES OBSERVING SYSTEM ENTERPRISE ARCHITECTURE T.J. Dekker1 , J.V. DePinto1 , S: tdekker@limno.com 2 NOAA Great Lakes Environmental Research Lab, Ann Arbor, Michigan, USA, email: steve, collaborative, and consensus-based enterprise architecture design process was conducted under the direction

464

Observing the Origin of the Universe Ned Wright (UCLA)  

E-Print Network [OSTI]

Observing the Origin of the Universe by Ned Wright (UCLA) ·http://www.astro.ucla.edu/~wright/intro.html ·http://www.astro.ucla.edu/~wright/cosmolog.htm ·http://www.astro.ucla.edu/~wright/CMB-DT.html ·http

Wright, Edward L. "Ned"

465

Controllers with Minimal Observation Power (Application to Timed Systems)  

E-Print Network [OSTI]

Controllers with Minimal Observation Power (Application to Timed Systems) Peter Bulychev1 , Franck is the computation of a subset of predicates sufficient for control and whose cost is minimal. Our solution avoids, Danish-Chinese Center for Cyber Physical Systems (IDEA4CPS) and VKR Center of Excellence MT-LAB. #12;The

David, Alexandre

466

Observability and Estimation Uncertainty Analysis for PMU Placement Alternatives  

E-Print Network [OSTI]

Observability and Estimation Uncertainty Analysis for PMU Placement Alternatives Jinghe Zhang unit (PMU), developed in the 1980s, is considered to be one of the most important devices in the future of power systems. While PMU measurements currently cover fewer than 1% of the nodes in the U.S. power grid

Bishop, Gary

467

Solar activity studies through coronal X–ray observations  

Science Journals Connector (OSTI)

...coronal holes and a sporadic slow solar wind coming from mainly closed regions. The solar wind has a very complex structure...R. Soc. Lond. A (2000) Solar activity studies 655 L. Harra...Pudritz (McCaster University, Canada). Do your observations show...

2000-01-01T23:59:59.000Z

468

Observing the Earth and planets: a Leicester symposium  

Science Journals Connector (OSTI)

......for instance using transmission electron microscopy...encompasses the iron-line complex at 6-7...strength and modest data rate (180 kbs...forward to avoid data loss). Mike Hapgood...g. major power outages). The impact of...better observational data to push the physics......

Mark Sims; John Pye; John Remedios

2012-04-01T23:59:59.000Z

469

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

Science Journals Connector (OSTI)

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

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

1993-11-01T23:59:59.000Z

470

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

471

Testing gravity with halo density profiles observed through gravitational lensing  

SciTech Connect (OSTI)

We present a new test of the modified gravity endowed with the Vainshtein mechanism with the density profile of a galaxy cluster halo observed through gravitational lensing. A scalar degree of freedom in the galileon modified gravity is screened by the Vainshtein mechanism to recover Newtonian gravity in high-density regions, however it might not be completely hidden on the outer side of a cluster of galaxies. Then the modified gravity might yield an observational signature in a surface mass density of a cluster of galaxies measured through gravitational lensing, since the scalar field could contribute to the lensing potential. We investigate how the transition in the Vainshtein mechanism affects the surface mass density observed through gravitational lensing, assuming that the density profile of a cluster of galaxies follows the original Navarro-Frenk-White (NFW) profile, the generalized NFW profile and the Einasto profile. We compare the theoretical predictions with observational results of the surface mass density reported recently by other researchers. We obtain constraints on the amplitude and the typical scale of the transition in the Vainshtein mechanism in a subclass of the generalized galileon model.

Narikawa, Tatsuya; Yamamoto, Kazuhiro, E-mail: narikawa@theo.phys.sci.hiroshima-u.ac.jp, E-mail: kazuhiro@hiroshima-u.ac.jp [Department of Physical Science, Hiroshima University, Higashi-Hiroshima 739-8526 (Japan)

2012-05-01T23:59:59.000Z

472

Observation of Beam ION Instability in Spear3  

SciTech Connect (OSTI)

Weak vertical coupled bunch instability with oscillation amplitude at {mu}m level has been observed in SPEAR3. The instability becomes stronger when there is a vacuum pressure rise by partially turning off vacuum pumps and it becomes weaker when the vertical beam emittance is increased by turning off the skew quadrupole magnets. These confirmed that the instability was driven by ions in the vacuum. The threshold of the beam ion instability when running with a single bunch train is just under 200 mA. This paper presents the comprehensive observations of the beam ion instability in SPEAR3. The effects of vacuum pressure, beam current, beam filling pattern, chromaticity, beam emittance and bunch-by-bunch feedback are investigated in great detail. In an electron accelerator, ions generated from the residual gas molecules can be trapped by the beam. Then these trapped ions interact resonantly with the beam and cause beam instability and emittance blow-up. Most existing light sources use a long single bunch train filling pattern, followed by a long gap to avoid multi-turn ion trapping. However, such a gap does not preclude ions from accumulating during one passage of the single bunch train beam, and those ions can still cause a Fast Ion Instability (FII) as predicted by Raubenheimer and Zimmermann. FII has been observed in ALS, and PLS by artificially increasing the vacuum pressure by injecting helium gas into the vacuum chamber or by turning off the ion pumps in order to observe the beam ion instability. In some existing rings, for instance B factory, the beam ion instability was observed at the beginning of the machine operation after a long period of shutdown and then it automatically disappeared when the vacuum was better. However, when the beam emittance becomes smaller, the FII can occur at nominal conditions as observed in PLS, SOLEIL and SSRF. This paper reports the observations of beam ion instabilities in SPEAR3 under different condition during a period of one year, which includes single bunch train instability (FII) and multi-bunch train instability. Note that the instability may be not the same even with the same beam due to the change of the vacuum with time. SPEAR3 has a circumference of 234 m with a harmonic number of 372. SPEAR3 runs with six bunch train filling pattern in order to suppress the possible beam ion instability. Table 1 lists the main parameters of SPEAR3. The vacuum of SPEAR3 ranges from 0.1 to 0.5 nTorr, which varies from section to section.

Teytelman, D.; /Dimtel, Redwood City; Cai, Y.; Corbett, W.J.; Raubenheimer, T.O.; Safranek, J.A.; Schmerge, J.F.; Sebek, J.J.; Wang, L.; /SLAC

2011-12-14T23:59:59.000Z

473

The invisible gorilla strikes again: Sustained attentional blindness in expert observers  

E-Print Network [OSTI]

The invisible gorilla strikes again: Sustained attentional blindness in expert observers Trafton lung. Extending to Naive Observers Is the gorilla simply invisible? 12 observers were cued to location

474

Generalized Uncertainty Principle and Recent Cosmic Inflation Observations  

E-Print Network [OSTI]

The recent background imaging of cosmic extragalactic polarization (BICEP2) observations are believed as an evidence for the cosmic inflation. BICEP2 provided a first direct evidence for the inflation, determined its energy scale and debriefed witnesses for the quantum gravitational processes. The ratio of scalar-to-tensor fluctuations $r$ which is the canonical measurement of the gravitational waves, was estimated as $r=0.2_{-0.05}^{+0.07}$. Apparently, this value agrees well with the upper bound value corresponding to PLANCK $r\\leq 0.012$ and to WMAP9 experiment $r=0.2$. It is believed that the existence of a minimal length is one of the greatest predictions leading to modifications in the Heisenberg uncertainty principle or a GUP at the Planck scale. In the present work, we investigate the possibility of interpreting recent BICEP2 observations through quantum gravity or GUP. We estimate the slow-roll parameters, the tensorial and the scalar density fluctuations which are characterized by the scalar field $\\phi$. Taking into account the background (matter and radiation) energy density, $\\phi$ is assumed to interact with the gravity and with itself. We first review the Friedmann-Lemaitre-Robertson-Walker (FLRW) Universe and then suggest modification in the Friedmann equation due to GUP. By using a single potential for a chaotic inflation model, various inflationary parameters are estimated and compared with the PLANCK and BICEP2 observations. While GUP is conjectured to break down the expansion of the early Universe (Hubble parameter and scale factor), two inflation potentials based on certain minimal supersymmetric extension of the standard model result in $r$ and spectral index matching well with the observations. Corresponding to BICEP2 observations, our estimation for $r$ depends on the inflation potential and the scalar field. A power-law inflation potential does not.

Abdel Nasser Tawfik; Abdel Magied Diab

2014-10-29T23:59:59.000Z

475

Characteristics of fine particle growth events observed above a forested  

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

Characteristics of fine particle growth events observed above a forested Characteristics of fine particle growth events observed above a forested ecosystem in the Sierra Nevada Mountains of California Title Characteristics of fine particle growth events observed above a forested ecosystem in the Sierra Nevada Mountains of California Publication Type Journal Article Year of Publication 2006 Authors Lunden, Melissa M., Douglas R. Black, Megan McKay, Kenneth L. Revzan, Allen H. Goldstein, and Nancy J. Brown Journal Aerosol Science and Technology Volume 40 Start Page 373 Issue 5 Pagination 373-388 Date Published 02/2006 ISSN 0278-6826 (Print), 1521-7388 (Online) Abstract Atmospheric aerosols from natural and anthropogenic processes have both primary and secondary origins, and can influence human health, visibility, and climate. One key process affecting atmospheric concentrations of aerosols is the formation of new particles and their subsequent growth to larger particle sizes. A field study was conducted at the Blodgett Forest Research Station in the Sierra Nevada Mountains of California from May through September of 2002 to examine the effect of biogenic volatile organic compounds on aerosol formation and processing. The study included in-situ measurements of concentration and biosphere-atmosphere flux of VOCs, ozone, aerosol size distribution, aerosol physical and optical properties, and meteorological variables. Fine particle growth events were observed on approximately 30 percent of the 107 days with complete size distribution data. Average particle growth rates measured during these events were 3.8 ± 1.9 nm hr-1. Correlations between aerosol properties, trace gas concentrations, and meteorological measurements were analyzed to determine conditions conducive to fine particle growth events. Growth events were typically observed on days with a lesser degree of anthropogenic influence, as indicated by lower concentrations of black carbon, carbon monoxide, and total aerosol volume. Days with growth events also had lower temperatures, increased wind speeds, and larger momentum flux. Measurements of ozone concentrations and ozone flux indicate that gas phase oxidation of biogenic volatile organic compounds occur in the canopy, strongly suggesting that a significant portion of the material responsible for the observed particle growth are oxidation products of naturally emitted very reactive organic compounds.

476

THE 2012 HUBBLE ULTRA DEEP FIELD (UDF12): OBSERVATIONAL OVERVIEW  

SciTech Connect (OSTI)

We present the 2012 Hubble Ultra Deep Field campaign (UDF12), a large 128 orbit Cycle 19 Hubble Space Telescope program aimed at extending previous Wide Field Camera 3 (WFC3)/IR observations of the UDF by quadrupling the exposure time in the F105W filter, imaging in an additional F140W filter, and extending the F160W exposure time by 50%, as well as adding an extremely deep parallel field with the Advanced Camera for Surveys (ACS) in the F814W filter with a total exposure time of 128 orbits. The principal scientific goal of this project is to determine whether galaxies reionized the universe; our observations are designed to provide a robust determination of the star formation density at z ?> 8, improve measurements of the ultraviolet continuum slope at z ? 7-8, facilitate the construction of new samples of z ? 9-10 candidates, and enable the detection of sources up to z ? 12. For this project we committed to combining these and other WFC3/IR imaging observations of the UDF area into a single homogeneous dataset to provide the deepest near-infrared observations of the sky. In this paper we present the observational overview of the project and describe the procedures used in reducing the data as well as the final products that were produced. We present the details of several special procedures that we implemented to correct calibration issues in the data for both the WFC3/IR observations of the main UDF field and our deep 128 orbit ACS/WFC F814W parallel field image, including treatment for persistence, correction for time-variable sky backgrounds, and astrometric alignment to an accuracy of a few milliarcseconds. We release the full, combined mosaics comprising a single, unified set of mosaics of the UDF, providing the deepest near-infrared blank-field view of the universe currently achievable, reaching magnitudes as deep as AB ? 30 mag in the near-infrared, and yielding a legacy dataset on this field.

Koekemoer, Anton M. [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Ellis, Richard S.; Schenker, Matthew A. [Department of Astrophysics, California Institute of Technology, MS 249-17, Pasadena, CA 91125 (United States); McLure, Ross J.; Dunlop, James S.; Bowler, Rebecca A. A.; Rogers, Alexander B.; Curtis-Lake, Emma; Cirasuolo, Michele; Wild, V.; Targett, T. [Institute for Astronomy, University of Edinburgh, Royal Observatory, Edinburgh EH9 3HJ (United Kingdom); Robertson, Brant E.; Schneider, Evan; Stark, Daniel P. [Department of Astronomy and Steward Observatory, University of Arizona, Tucson, AZ 85721 (United States); Ono, Yoshiaki; Ouchi, Masami [Institute for Cosmic Ray Research, University of Tokyo, Kashiwa City, Chiba 277-8582 (Japan); Charlot, Stephane [UPMC-CNRS, UMR7095, Institut d'Astrophysique de Paris, F-75014, Paris (France); Furlanetto, Steven R. [Department of Physics and Astronomy, University of California, Los Angeles, CA 90095 (United States)

2013-11-01T23:59:59.000Z

477

Climatological Data for Clouds Over the Globe from Surface Observations  

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

for Clouds Over the Globe from Surface Observations for Clouds Over the Globe from Surface Observations (1988) (NDP-026) DOI: 10.3334/CDIAC/cli.ndp026 data Data Investigators C. J. Hahn, S. G. Warren, J. London, R. L. Jenne, and R. M. Chervin With some data from as early as 1930, global long-term monthly and/or seasonal total cloud cover, cloud type amounts and frequencies of occurrence, low cloud base heights, harmonic analyses of annual and diurnal cycles, interannual variations and trends, and cloud type co-occurrences have been compiled and presented in two atlases (Warren et al. 1988, 1990). These data were derived from land and ship synoptic weather reports from the "SPOT" archive of the Fleet Numerical Oceanography Center (FNOC) and from Release 1 of the Comprehensive Ocean-Atmosphere Data Set (COADS) for

478

Observing Newtrinos: 1663 Science and Technology Magazine | Los National  

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

Observing Newtrinos Observing Newtrinos RECENT NEUTRINO EXPERIMENTS PROVIDE A RARE OPPORTUNITY TO GLIMPSE NEW PARTICLE PHYSICS The field of particle physics spent much of the last century converging on the "standard model" that describes subatomic particles and the forces by which they interact. Ambitious research that began in the early 1900s with hot-air balloon experiments aimed at catching cosmic rays, and followed later in the century with accelerator-based experiments, led to the extraordinary success of the standard model. Nonetheless, the excitement in particle physics often lies not with the vast body of solidly established textbook knowledge, but rather on the fringe, where researchers seek to identify new physics beyond the standard model. Some even hope to find a

479

Climatological Data For Clouds Over the Globe From Surface Observations,  

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

For Clouds Over the Globe From Surface Observations, For Clouds Over the Globe From Surface Observations, 1982-1991: The Total Cloud Edition (1994) (NDP-026a) data Data Investigators C. J. Hahn, S. G. Warren, and J. London Routine, synoptic surface weather reports from ships and land stations over the entire globe, for the10-year period December 1981 through November 1991, were processed for total cloud cover and the frequencies of occurrence of clear sky, sky-obscured due to precipitation, and sky-obscured due to fog. Archived data, consisting of various annual, seasonal and monthly averages, are provided in grid boxes that are typically 2.5° × 2.5° for land and 5° × 5° for ocean. Day and nighttime averages are also given separately for each season. Several derived quantities, such as interannual variations and annual and diurnal

480

Computer-Related Ergonomic Safety Talking Points and Observation  

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

Related Ergonomic Safety Related Ergonomic Safety Talking Points and Observation Criteria Supporting Managers and Supervisors in Meetings with Employees March 14, 2007 Background to Discussions * Scope of the Problem: - ~70% of recordable injuries this FY are from ergonomic causes - ~70% of ergonomic injuries involve computer work (remainder mainly involve laboratory and shop work) - Most significant cause of computer related ergo injuries is workload hazard control (help = work with manager) - Single most significant contributing factor is not requesting help when ergonomic issues surface (help = request ergonomic evaluation) Suggested Employee Discussion Topics - Computer Ergo (p1) * Meet with employees in their workspace so you can observe the ergonomic issues in their work. * Begin by telling the employee you are there to see

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481

Observation of a Macroscopically Quantum-Entangled Insulator  

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

Observation of a Macroscopically Quantum-Entangled Insulator Print Observation of a Macroscopically Quantum-Entangled Insulator Print It has recently been proposed that insulators with large band gaps and strong spin-orbit coupling can host a new phase of quantum matter called a topological insulator that is characterized by entangled wavefunctions. The proposal has now been realized by an international collaboration led by researchers from Princeton University who studied the electronic structure of insulating alloys of bismuth and antimony by means of angle-resolved photoemission spectroscopy (ARPES) and spin-resolved ARPES. Their results constitute the first direct experimental evidence of a topological insulator in nature that is fully quantum entangled. In the future, a detailed study of topological order and quantum entanglement using their method can potentially pave the way for fault-tolerant (topological) quantum computing.

482

Observation of a Macroscopically Quantum-Entangled Insulator  

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

Observation of a Macroscopically Quantum-Entangled Insulator Print Observation of a Macroscopically Quantum-Entangled Insulator Print It has recently been proposed that insulators with large band gaps and strong spin-orbit coupling can host a new phase of quantum matter called a topological insulator that is characterized by entangled wavefunctions. The proposal has now been realized by an international collaboration led by researchers from Princeton University who studied the electronic structure of insulating alloys of bismuth and antimony by means of angle-resolved photoemission spectroscopy (ARPES) and spin-resolved ARPES. Their results constitute the first direct experimental evidence of a topological insulator in nature that is fully quantum entangled. In the future, a detailed study of topological order and quantum entanglement using their method can potentially pave the way for fault-tolerant (topological) quantum computing.

483

Hadronic sizes and observables in high-energy scattering  

E-Print Network [OSTI]

The functional dependence of the high-energy observables of total cross section and slope parameter on the sizes of the colliding hadrons predicted by the model of the stochastic vacuum and the corresponding relations used in the geometric model of Povh and H\\"ufner are confronted with the experimental data. The existence of a universal term in the expression for the slope, due purely to vacuum effects, independent of the energy and of the particular hadronic system, is investigated. Accounting for the two independent correlation functions of the QCD vacuum, we improve the simple and consistent description given by the model of the stochastic vacuum to the high-energy pp and pbar-p data, with a new determination of parameters of non-perturbative QCD. The increase of the hadronic radii with the energy accounts for the energy dependence of the observables.

Erasmo Ferreira; Flávio Pereira

1997-05-09T23:59:59.000Z

484

High Spatial Resolution Observations of Loops in the Solar Corona  

E-Print Network [OSTI]

Understanding how the solar corona is structured is of fundamental importance to determining how the Sun's upper atmosphere is heated to high temperatures. Recent spectroscopic studies have suggested that an instrument with a spatial resolution of 200km or better is necessary to resolve coronal loops. The High Resolution Coronal Imager (Hi-C) achieved this performance on a rocket flight in July 2012. We use Hi-C data to measure the Gaussian widths of 91 loops observed in the solar corona and find a distribution that peaks at about 270km. We also use Atmospheric Imaging Assembly (AIA) data for a subset of 79 of these loops and find that their temperature distributions are narrow. These observations provide further evidence that loops in the solar corona are structured at a scale of several hundred kilometers, well above the spatial scale of proposed physical mechanisms.

Brooks, David H; Ugarte-Urra, Ignacio; Winebarger, Amy R

2013-01-01T23:59:59.000Z

485

Moon and Sun Shadowing Observed by the MACRO Detector  

E-Print Network [OSTI]

Using over 40 million muons collected since 1989 by the MACRO detector we have searched for a depletion of muons coming from the direction of the Moon due to primary cosmic rays striking the Moon. We observe this Moon shadow in the expected position with a statistical significance of more than 5 standard deviations. We have analyzed the same data for an analogous Sun shadow, and have found a signal with a significance of about 4 standard deviations. The Sun shadow is displaced from the Sun's position by about 0.6 degrees North in ecliptic coordinates. This displacement is compatible with a deflection of primary cosmic rays due to the Interplanetary Magnetic Field in the 10-20 TeV primary energy range which is relevant to the underground muons observed by MACRO.

N. Giglietto; for the MACRO collaboration

1999-05-17T23:59:59.000Z

486

A New Shear Estimator for Weak Lensing Observations  

E-Print Network [OSTI]

We present a new shear estimator for weak lensing observations which properly accounts for the effects of a realistic point spread function (PSF). Images of faint galaxies are subject to gravitational shearing followed by smearing with the instrumental and/or atmospheric PSF. We construct a `finite resolution shear operator' which when applied to an observed image has the same effect as a gravitational shear applied prior to smearing. This operator allows one to calibrate essentially any shear estimator. We then specialize to the case of weighted second moment shear estimators. We compute the shear polarizability which gives the response of an individual galaxy's polarization to a gravitational shear. We then compute the response of the population of galaxies, and thereby construct an optimal weighting scheme for combining shear estimates from galaxies of various shapes, luminosities and sizes. We define a figure of merit --- an inverse shear variance per unit solid angle --- which characterizes the quality o...

Kaiser, N

1999-01-01T23:59:59.000Z

487

Observational constraints on late-time {lambda}(t) cosmology  

SciTech Connect (OSTI)

The cosmological constant {lambda}, i.e., the energy density stored in the true vacuum state of all existing fields in the Universe, is the simplest and the most natural possibility to describe the current cosmic acceleration. However, despite its observational successes, such a possibility exacerbates the well-known {lambda} problem, requiring a natural explanation for its small, but nonzero, value. In this paper we study cosmological consequences of a scenario driven by a varying cosmological term, in which the vacuum energy density decays linearly with the Hubble parameter, {lambda}{proportional_to}H. We test the viability of this scenario and study a possible way to distinguish it from the current standard cosmological model by using recent observations of type Ia supernova (Supernova Legacy Survey Collaboration), measurements of the baryonic acoustic oscillation from the Sloan Digital Sky Survey, and the position of the first peak of the cosmic microwave background angular spectrum from the three-year Wilkinson Microwave Anisotropy Probe.

Carneiro, S.; Pigozzo, C. [Instituto de Fisica, Universidade Federal da Bahia, Salvador-BA, 40210-340 (Brazil); Dantas, M. A. [Departamento de Astronomia, Observatorio Nacional, Rio de Janeiro-RJ, 20921-400 (Brazil); Alcaniz, J. S. [Departamento de Astronomia, Observatorio Nacional, Rio de Janeiro-RJ, 20921-400 (Brazil); Instituto Nacional de Pesquisas Espaciais/CRN, 59076-740, Natal-RN (Brazil)

2008-04-15T23:59:59.000Z

488

HIGH SPATIAL RESOLUTION OBSERVATIONS OF LOOPS IN THE SOLAR CORONA  

SciTech Connect (OSTI)

Understanding how the solar corona is structured is of fundamental importance to determine how the Sun's upper atmosphere is heated to high temperatures. Recent spectroscopic studies have suggested that an instrument with a spatial resolution of 200 km or better is necessary to resolve coronal loops. The High Resolution Coronal Imager (Hi-C) achieved this performance on a rocket flight in 2012 July. We use Hi-C data to measure the Gaussian widths of 91 loops observed in the solar corona and find a distribution that peaks at about 270 km. We also use Atmospheric Imaging Assembly data for a subset of these loops and find temperature distributions that are generally very narrow. These observations provide further evidence that loops in the solar corona are often structured at a scale of several hundred kilometers, well above the spatial scale of many proposed physical mechanisms.

Brooks, David H.; Ugarte-Urra, Ignacio [College of Science, George Mason University, 4400 University Drive, Fairfax, VA 22030 (United States); Warren, Harry P. [Space Science Division, Naval Research Laboratory, Washington, DC 20375 (United States); Winebarger, Amy R. [NASA Marshall Space Flight Center, ZP 13, Huntsville, AL 35812 (United States)

2013-08-01T23:59:59.000Z

489

Higgs boson mass and electroweak observables in the MRSSM  

E-Print Network [OSTI]

R-symmetry is a fundamental symmetry which can solve the SUSY flavor problem and relax the search limits on SUSY masses. Here we provide a complete next-to-leading order computation and discussion of the lightest Higgs boson mass, the W boson mass and muon decay in the minimal R-symmetric SUSY model (MRSSM). This model contains non-MSSM particles including a Higgs triplet, Dirac gauginos and higgsinos, and leads to significant new tree-level and one-loop contributions to these observables. We show that the model can accommodate the measured values of the observables for interesting regions of parameter space with stop masses of order 1 TeV in spite of the absence of stop mixing. We characterize these regions and provide typical benchmark points, which are also checked against further experimental constraints. A detailed exposition of the model, its mass matrices and its Feynman rules relevant for computations in this paper is also provided.

Dießner, Philip; Kotlarski, Wojciech; Stöckinger, Dominik

2014-01-01T23:59:59.000Z

490

Molecular line observations of proto-planetary nebulae  

E-Print Network [OSTI]

We present our recent results on mm-wave CO observations of proto-planetary nebulae. These include high-resolution interferometric maps of various CO lines in three well known bipolar PPNe: M1-92, M2-56 and OH231.8+4.2. The global properties of the high velocity molecular emission in post-AGB sources have been also studied, by means of high-sensitivity single dish observations of the J=1-0 and 2-1 lines of 12CO and 13CO. We discuss the implications of these results to constrain the origin of the post-AGB molecular high-velocity winds and the shaping of bipolar PPNe and PNe. In addition, we also present the results of an interferometric map of the molecular envelope around the luminous high-latitude star 89 Her, a low mass post-AGB source which is also a close binary system.

J. Alcolea; V. Bujarrabal; A. Castro-Carrizo; C. Sanchez Contreras; R. Neri; J. Zweigle

1999-10-05T23:59:59.000Z

491

ROSAT Public PSPC Observations in the Las Campanas Redshift Survey  

E-Print Network [OSTI]

The Las Campanas Redshift Survey, an optically selected survey which contains 26,418 galaxy redshifts, has been correlated with ``The First ROSAT Source Catalogue of Pointed Observations with the PSPC,'' which contains 50,408 sources from 2876 ROSAT pointed observations. Ten matches were found. The optical spectra of most of the ten matches show weak narrow emission lines. Due to their high x-ray luminosities, their high x-ray--to--optical flux ratios, and the evidence of rapid x-ray variability in the two brightest matches, we interpret the majority of these objects to be narrow-line Seyfert galaxies or ``hidden'' active galactic nuclei. Of the ten matches, only one galaxy shows the characteristics of a bona fide starburst.

D. L. Tucker; G. Hasinger; H. Lin

1997-04-22T23:59:59.000Z

492

Recycling of quantum information: Multiple observations of quantum systems  

E-Print Network [OSTI]

Given a finite number of copies of an unknown qubit state that have already been measured optimally, can one still extract any information about the original unknown state? We give a positive answer to this question and quantify the information obtainable by a given observer as a function of the number of copies in the ensemble, and of the number of independent observers that, one after the other, have independently measured the same ensemble of qubits before him. The optimality of the protocol is proven and extensions to other states and encodings are also studied. According to the general lore, the state after a measurement has no information about the state before the measurement. Our results manifestly show that this statement has to be taken with a grain of salt, specially in situations where the quantum states encode confidential information.

Peter Rapcan; John Calsamiglia; Ramon Munoz-Tapia; Emilio Bagan; Vladimir Buzek

2007-08-08T23:59:59.000Z

493

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

494

Near Infrared observations of Soft X-ray selected AGN  

E-Print Network [OSTI]

We report the results of near infrared observations of 19 soft X-ray selected AGN. The goal of the observations was to search for strong, narrow Paschen-alpha or Brackett-gamma emission lines, as a sign of nuclear starbursts. We found Pa-alpha emission in the spectra of 11 sources and Br-gamma in at least five. Strong NIR emission has been found in two sources, CBS 126 and Mkn 766, both objects with strong [OIII]5007 emission, weak FeII emission and wavelength dependent degree of polarization in the optical. Classical Narrow Line Seyfert 1 galaxies do not show exceptionally strong NIR emission lines. We present the results of our study and discuss how our findings fit into an evolutionary scheme of AGN.

D. Grupe; H. -C Thomas

2002-02-21T23:59:59.000Z

495

U.S. Recordable Injury and Illness Rates and Lost Workday Rates Lowest Since BLS Began Reporting  

Broader source: Energy.gov [DOE]

Acting Assistant Secretary for the Occupational Safety and Health Administration (OSHA), Jonathan L. Snare, told a gathering of safety and health professionals at the American Society of Safety Engineers Annual National Conference in New Orleans, LA, that the nation’s recordable injury and illness rates have declined 7.1 percent from 2002 to 2003.

496

Effect of increasing the energy gap between the two lowest energy states on the mixing time of  

E-Print Network [OSTI]

Kanpur, Kanpur 208016, India Abstract. In order to understand what makes natural proteins fold rapidly for the minimum energy conforma- tions of chains of beads in the lattice model of protein folding. Based algorithm, Markov chain mixing time, protein folding, randomized algorithms. 1 Introduction One of the most

Biswas, Somenath

497

X-RAY OBSERVATIONS OF HIGH-B RADIO PULSARS  

SciTech Connect (OSTI)

The study of high-magnetic-field pulsars is important for examining the relationships between radio pulsars, magnetars, and X-ray-isolated neutron stars (XINSs). Here, we report on X-ray observations of three such high-magnetic-field radio pulsars. We first present the results of a deep XMM-Newton observation of PSR J1734-3333, taken to follow up on its initial detection in 2009. The pulsar's spectrum is well fit by a blackbody with a temperature of 300 {+-} 60 eV, with bolometric luminosity L{sub bb}=2.0{sub -0.7}{sup +2.2} Multiplication-Sign 10{sup 32} erg s{sup -1}{approx}0.0036 E-dot for a distance of 6.1 kpc. We detect no X-ray pulsations from the source, setting a 1{sigma} upper limit on the pulsed fraction of 60% in the 0.5-3 keV band. We compare PSR J1734-3333 to other rotation-powered pulsars of similar age and find that it is significantly hotter, supporting the hypothesis that the magnetic field affects the observed thermal properties of pulsars. We also report on XMM-Newton and Chandra observations of PSRs B1845-19 and J1001-5939. We do not detect either pulsar, setting 3{sigma} upper limits on their blackbody temperatures of 48 and 56 eV, respectively. Despite the similarities in rotational properties, these sources are significantly cooler than all but one of the XINSs, which we attribute to the two groups having been born with different magnetic fields and hence evolving differently.

Olausen, S. A.; Kaspi, V. M. [Department of Physics, Rutherford Physics Building, McGill University, 3600 University Street, Montreal, Quebec, H3A 2T8 (Canada)] [Department of Physics, Rutherford Physics Building, McGill University, 3600 University Street, Montreal, Quebec, H3A 2T8 (Canada); Zhu, W. W. [Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC, V6T 1Z1 (Canada)] [Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC, V6T 1Z1 (Canada); Vogel, J. K. [Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550 (United States)] [Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550 (United States); Lyne, A. G.; Espinoza, C. M.; Stappers, B. W. [Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, University of Manchester, Manchester M13 9PL (United Kingdom)] [Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, University of Manchester, Manchester M13 9PL (United Kingdom); Manchester, R. N. [Australia Telescope National Facility, CSIRO Astronomy and Space Science, Epping, NSW 1710 (Australia)] [Australia Telescope National Facility, CSIRO Astronomy and Space Science, Epping, NSW 1710 (Australia); McLaughlin, M. A. [Department of Physics, West Virginia University, White Hall, Morgantown, WV 26506 (United States)] [Department of Physics, West Virginia University, White Hall, Morgantown, WV 26506 (United States)

2013-02-10T23:59:59.000Z

498

Observations on waveforms of capillary and gravity-capillary waves  

Science Journals Connector (OSTI)

Due to extreme conditions in the field, there has not been any observational report on three-dimensional waveforms of short ocean surface waves. Three-dimensional waveforms of short wind waves can be found from integrating surface gradient image data (Zhang 1996a). Ocean surface gradient images are captured by an optical surface gradient detector mounted on a raft operating in the water offshore California (Cox and Zhang 1997). Waveforms and spatial structures of short wind waves are compared with early laboratory wind wave data (Zhang 1994, 1995). Although the large-scale wind and wave conditions are quite different, the waveforms are resoundingly similar at the small scale. It is very common, among steep short wind waves, that waves in the capillary range feature sharp troughs and flat crests. The observations show that most short waves are far less steep than the limiting waveform under weak wind conditions. Waveforms that resemble capillary-gravity solitons are observed with a close match to the form theoretically predicted for potential flows (Longuet-Higgins 1989, Vanden-Broeck and Dias 1992). Capillaries are mainly found as parasitic capillaries on the forward face of short gravity waves. The maximum wavelength in a parasitic wave train is less than a centimeter. The profiles of parasitic wave trains and longitudinal variations are shown. The phenomenon of capillary blockage (Phillips 1981) on dispersive freely traveling short waves is observed in the tank but not at sea. The short waves seen at sea propagate in all directions while waves in the tank are much more unidirectional.

Xin Zhang

1999-01-01T23:59:59.000Z

499

The Hard X-ray Sky: Recent Observational Progress  

SciTech Connect (OSTI)

The last fifty years have witnessed the birth, development, and maturation to full potential of hard X-ray astrophysics. The primary force driving the history of the field has been the development of space-based instrumentation optimized for getting the maximum science out of observations of high-energy photons from astrophysical sources. Hard X-ray telescopes are leading research in areas such as galactic diffuse emission, galactic transients, and active galactic nuclei.

Gehrels, Neil [NASA/GSFC/ASD/Code 661, Greenbelt, Md 20071 (United States); Cannizzo, John K. [CRESST/UMBC/NASA/GSFC/ASD/Code 661, Greenbelt, Md 20071 (United States)

2009-05-11T23:59:59.000Z

500

No-signaling, dynamical independence, and the local observability principle  

E-Print Network [OSTI]

Within a general operational framework I show that a-causality at a distance of "local actions" (the so-called "no-signaling") is a direct consequence of commutativity of local transformations, i.e. of dynamical independence. On the other hand, the tensor product of Quantum Mechanics is not just a consequence of such dynamical independence, but needs in addition the Local Observability Principle.

Giacomo Mauro D'Ariano

2007-01-29T23:59:59.000Z