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1

On the universality of some Smarandache loops of Bol-Moufang type  

E-Print Network (OSTI)

A Smarandache quasigroup(loop) is shown to be universal if all its f,g-principal isotopes are Smarandache f,g-principal isotopes. Also, weak Smarandache loops of Bol-Moufang type such as Smarandache: left(right) Bol, Moufang and extra loops are shown to be universal if all their f,g-principal isotopes are Smarandache f,g-principal isotopes. Conversely, it is shown that if these weak Smarandache loops of Bol-Moufang type are universal, then some autotopisms are true in the weak Smarandache sub-loops of the weak Smarandache loops of Bol-Moufang type relative to some Smarandache elements. Futhermore, a Smarandache left(right) inverse property loop in which all its f,g-principal isotopes are Smarandache f,g-principal isotopes is shown to be universal if and only if it is a Smarandache left(right) Bol loop in which all its f,g-principal isotopes are Smarandache f,g-principal isotopes. Also, it is established that a Smarandache inverse property loop in which all its f,g-principal isotopes are Smarandache f,g-principal isotopes is universal if and only if it is a Smarandache Moufang loop in which all its f,g-principal isotopes are Smarandache f,g-principal isotopes. Hence, some of the autotopisms earlier mentioned are found to be true in the Smarandache sub-loops of universal Smarandache: left(right) inverse property loops and inverse property loops.

Temitope Gbolahan Jaiyeola

2006-07-28T23:59:59.000Z

2

Euclidean SYM Theories by Time Reduction and Special Holonomy Manifolds  

E-Print Network (OSTI)

Euclidean supersymmetric theories are obtained from Minkowskian theories by performing a reduction in the time direction. This procedure elucidates certain mysterious features of Zumino's N=2 model in four dimensions, provides manifestly hermitian Euclidean counterparts of all non-mimimal SYM theories, and is also applicable to supergravity theories. We reanalyse the twists of the 4d N=2 and N=4 models from this point of view. Other applications include SYM theories on special holonomy manifolds. In particular, we construct a twisted SYM theory on Kaehler 3-folds and clarify the structure of SYM theory on hyper-Kaehler 4-folds.

Matthias Blau; George Thompson

1997-06-30T23:59:59.000Z

3

NATO : Network Architecture Tensile Organization : mending Berlin through public interface  

E-Print Network (OSTI)

NATO: Network Architecture; Tensile Organization is a project that seeks to create a lighter public forum where architecture mediates a space of metaphor, yet looks towards a hopeful future, in a place laden with the ...

Vassilev, Vasilena (Vasilena R.)

2009-01-01T23:59:59.000Z

4

Iterative Structure of the N=4 SYM Spin Chain  

E-Print Network (OSTI)

We develop algebraic methods for finding loop corrections to the N=4 SYM dilatation generator, within the noncompact psu(1,1|2) sector. This sector gives a 't Hooft coupling lambda-dependent representation of psu(1,1|2) times psu(1|1)^2. At first working independently of the representation, we present an all-order algebraic ansatz for the lambda-dependence of this Lie algebra's generators. The ansatz solves the symmetry constraints if an auxiliary generator, h, satisfies certain simple commutation relations with the Lie algebra generators. Applying this to the psu(1,1|2) sector leads to an iterative solution for the planar three-loop dilatation generator in terms of leading order symmetry generators and h, which passes a thorough set of spectral tests. We argue also that this algebraic ansatz may be applicable to the nonplanar theory as well.

Benjamin I. Zwiebel

2008-06-11T23:59:59.000Z

5

Europe's Defense Policy and NATO's Strategic Concept A new Atlantic partnership for the 21st century ?  

E-Print Network (OSTI)

Organization NC0 noncommissioned officer NPT Non-Proliferation Treaty OCS Officer Candidate School OPD independently targetable reentry vehicle MIT Massachusetts Institute of Technology NATO North Atlantic Treaty

6

SymChaff: exploiting symmetry in a structure-aware satisfiability solver  

Science Conference Proceedings (OSTI)

This article presents a new low-overhead framework for representing and utilizing problem symmetry in propositional satisfiability algorithms. While many previous approaches have focused on symmetry extraction as a key component, the novelty in the proposed ... Keywords: Boolean satisfiability, Complete multi-class symmetry, Global symmetry, High-level representation, Planning, SAT, SymChaff

Ashish Sabharwal

2009-12-01T23:59:59.000Z

7

NATO Simulation Pressures Students to Forge a Response to Threatening International Incidents  

E-Print Network (OSTI)

that they are not going to have a blank check to do Georgia 2.0." ODD student Timothy Gorde, in his role as NATO secretary. This is the South Caucasus region of Eurasia. rrests' in Turkey Turn Up the Heat A high-priorityintelligence report in Azerbaijan through Tblisi in Georgia and to the Mediterranean port of Ceyhan in Turkey. A statement from

8

Enhanced thermal photon and dilepton production in strongly coupled N=4 SYM plasma in strong magnetic field  

E-Print Network (OSTI)

We calculate the DC conductivity tensor of strongly coupled N=4 super-Yang-Mills (SYM) plasma in a presence of a strong external magnetic field B>>T^2 by using its gravity dual and employing both the RG flow approach and membrane paradigm which give the same results. We find that, since the magnetic field B induces anisotropy in the plasma, different components of the DC conductivity tensor have different magnitudes depending on whether its components are in the direction of the magnetic field B. In particular, we find that a component of the DC conductivity tensor in the direction of the magnetic field B increases linearly with B while the other components (which are not in the direction of the magnetic field B) are independent of it. These results are consistent with the lattice computations of the DC conductivity tensor of the QCD plasma in an external magnetic field B. Using the DC conductivity tensor, we calculate the soft or low-frequency thermal photon and dilepton production rates of the strongly coupled N=4 SYM plasma in the presence of the strong external magnetic field B>>T^2. We find that the strong magnetic field B enhances both the thermal photon and dilepton production rates of the strongly coupled N=4 SYM plasma in a qualitative agreement with the experimentally observed enhancements at the heavy-ion collision experiments.

Kiminad A. Mamo

2012-10-28T23:59:59.000Z

9

Proceedings of the second NATO-CCMS information meeting on dry hot rock geothermal energy  

DOE Green Energy (OSTI)

A summary is presented of the second and last NATO-CCMS (North Atlantic Treaty Organization--Committee on Challenges of Modern Society) Geothermal Pilot Study Information Meeting on Dry Hot Rock Geothermal Energy. Only summaries of the formal presentations are included. Overviews of the Energy Research and Development Administration (ERDA) and the U.S. Geological Survey (USGS) geothermal projects are included with emphasis on the Los Alamos Scientific Laboratory (LASL) Hot Dry Rock Geothermal Energy Development Project. Reports of developments in nine foreign countries and on geothermal projects in US universities are also presented.

Mortensen, J.J. (comp.)

1977-11-01T23:59:59.000Z

10

The history of NATO TNF policy: The role of studies, analysis and exercises conference proceedings. Volume 1, Introduction and summary  

SciTech Connect

This conference was organized to study and analyze the role of simulation, analysis, modeling, and exercises in the history of NATO policy. The premise was not that the results of past studies will apply to future policy, but rather that understanding what influenced the decision process -- and how -- would be of value. The structure of the conference was built around discussion panels. The panels were augmented by a series of papers and presentations focusing on particular TNF events, issues, studies or exercise. The conference proceedings consist of three volumes. This volume, Volume 1, contains the conference introduction, agenda, biographical sketches of principal participants, and analytical summary of the presentations and discussion panels. Volume 2 contains a short introduction and the papers and presentations from the conference. Volume 3 contains selected papers by Brig. Gen. Robert C. Richardson III (Ret.).

Rinne, R.L. [ed.

1994-02-01T23:59:59.000Z

11

The history of NATO TNF policy: The role of studies, analysis and exercises conference proceedings. Volume 2: Papers and presentations  

Science Conference Proceedings (OSTI)

This conference was organized to study and analyze the role of simulation, analysis, modeling, and exercises in the history of NATO policy. The premise was not that the results of past studies will apply to future policy, but rather that understanding what influenced the decision process -- and how -- would be of value. The structure of the conference was built around discussion panels. The panels were augmented by a series of papers and presentations focusing on particular TNF events, issues, studies, or exercises. The conference proceedings consist of three volumes. Volume 1 contains the conference introduction, agenda, biographical sketches of principal participants, and analytical summary of the presentations and panels. This volume contains a short introduction and the papers and presentations from the conference. Volume 3 contains selected papers by Brig. Gen. Robert C. Richardson III (Ret.). Individual papers in this volume were abstracted and indexed for the database.

Rinne, R.L.

1994-02-01T23:59:59.000Z

12

Iterative equalization and decoding applied to underwater acoustic communication  

E-Print Network (OSTI)

absolute phase error versus iter- ation. (d) Number of bitCMP estimation are done iter- atively, in conjunction withAPP estimates ? (i) . If i = N iter , then the sym- bol APP

Sifferlen, James F.

2008-01-01T23:59:59.000Z

13

Risk Methodologies for Technological Legacies : Proceedings of the NATO Advanced Study Institute, Bourgas, Bulgaria from 2 to 11 May 2000  

Science Conference Proceedings (OSTI)

The Cold War Era left the major participants, the United States and the former Soviet Union (FSU), with large environmental legacies in terms of facility contamination and environmental degradation. Although the countries face similar issues from similar activities, important differences in waste management practices make the potential environmental and health risks of more immediate concern in the FSU and Eastern Europe. In the West, most nuclear and chemical waste is stored in known contained locations, while in the East much of the equivalent material is unconfined, contaminating the environment. The knowledge and experiences of the U.S. in these initial cleanup efforts are seen as important information in many North Atlantic Treaty Organization (NATO) Partner countries, where the environmental problems are more severe and the cleanup budgets more limited. An Advanced Study Institute (ASI) on ''Risk Assessment Activities for the Cold War Facilities and Environmental Legacies'' was held in Bourgas, Bulgaria, May 2-11, 2000. The objective of the ASI was to provide information to facilitate and enable decision-making activities affecting the environment and human populations in the NATO and Partner countries. Specifically, the ASI provided a forum to communicate the current status of risk analysis and management methodologies and their appropriate application. It addressed scientific approaches and application experiences from the initial U.S. risk assessment activities. This book is the product of the ASI. The power of the text lies in linking information on legacies with an integrated view of controlling the risk of those legacies. Risk can only be effectively controlled by proper balance of three central concepts: risk analysis, risk perception, and risk management. The editors were drawn together by the joint recognition that risk analysis methods had matured over the past 30 years in several fields, relatively independent of each other. It was time to integrate all these forms of risk analysis under one framework, identifying the reasons for the seemingly disparate approaches and the gains to be reaped by bringing them together. Part I of this book gives detailed information on the three central concepts and gives further definition to facility-centered and human-centered approaches to risk analysis and risk management. Part II of this book gives extensive information on the legacies, our perception of the risk associated with them, and, in some cases, tools for analyzing that risk. Part III of the book relies heavily on applications as a means of presenting detailed information on risk assessment programs and methodologies. Finally, Part IV provides details on future activities. Applications were selected for this text that illustrate the strengths and limitations of different risk methodologies for assessments of military and Cold War legacy facilities in NATO and Partner countries. The textbook shows how specific needs have been met by the various risk methodologies and stress the need for an integrated view that uses the various risk methodologies in a complementary rather than competitive manner.

Bley, Dennis C.; Droppo, James G.; Eremenko, Vitaly A.

2003-05-01T23:59:59.000Z

14

The history of NATO TNF policy: The role of studies, analysis and exercises conference proceedings. Volume 3: Papers by Gen. Robert C. Richardson III (Ret.)  

Science Conference Proceedings (OSTI)

This conference was organized to study and analyze the role of simulation, analysis, modeling, and exercises in the history of NATO policy. The premise was not that the results of past studies will apply to future policy, but rather that understanding what influenced the decision process-and how-would be of value. The structure of the conference was built around discussion panels. The panels were augmented by a series of papers and presentations focusing on particular TNF events, issues, studies, or exercises. The conference proceedings consist of three volumes. Volume 1 contains the conference introduction, agenda, biographical sketches of principal participants, and analytical summary of the presentations and discussion panels. Volume 2 contains a short introduction and the papers and presentations from the conference. This volume contains selected papers by Brig. Gen. Robert C. Richardson III (Ret.).

Rinne, R.L. [ed.

1994-02-01T23:59:59.000Z

15

Bol. Soc. Esp. Mat. Apl. no 0 (0000), 152  

E-Print Network (OSTI)

Computational Fluid-Structure Dynamics (CFSD) is of great importance in practically all engineering fields, from. A spurious numerical power is therefore generated at the interface (energy is not exactly balanced due and current configurations). 2.1. Fluid equations The dynamics of the (moving) control volume f (t

Paris-Sud XI, Université de

16

Critical phenomena in N=4 SYM plasma  

E-Print Network (OSTI)

Strongly coupled N=4 supersymmetric Yang-Mills plasma at finite temperature and chemical potential for an R-symmetry charge undergoes a second order phase transition. We demonstrate that this phase transition is of the mean field theory type. We explicitly show that the model is in the dynamical universality class of 'model B' according to the classification of Hohenberg and Halperine, with dynamical critical exponent z=4. We study bulk viscosity in the mass deformed version of this theory in the vicinity of the phase transition. We point out that all available models of bulk viscosity at continuous phase transition are in conflict with our explicit holographic computations.

Alex Buchel

2010-05-05T23:59:59.000Z

17

NATO UNCLASSIFIED NORTH ATLANTIC TREATY ORGANIZATION  

E-Print Network (OSTI)

Les systemes militaires doivent repondre a des normes tres severes. La norme militaire «Mil-Hdbk-217C Equipment", MIL-HDBK-217C, 1980. 2. Department of Defense of USA, "Military Standard: Definitions of terms

Kieras, David E.

18

Derk Bol, Materials Innovation Institute M2i (Netherlands) M2i...  

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

The EU Raw Materials Initiative and the Report of the Ad-hoc Group Tom Lograsso, Ames Laboratory (Iowa State University), Future Directions in Rare Earth Research:...

19

Norways Approach to NATOs Deterrence and Defence Posture Review  

E-Print Network (OSTI)

nuclear disarmament is a initiating, as well as supporting, non-proliferation ultimate objective of the weapons. 1 to tactical nuclear weapons in Europe. 2 1 Ambassador Bente Angel Hanssen, Disarmament, Geneva, 17 th 16 th The current Norwegian government believes that top priority issue and is ing, proposals that see

Julie Ronbeck

2012-01-01T23:59:59.000Z

20

Superconducting Electronics (Nato ASI Series (closed) / Nato ASI Subseries F, 1st edition  

Science Conference Proceedings (OSTI)

The book provides an in-depth understanding of the fundamentals of superconducting electronics and the practical considerations for the fabrication of superconducting electronic structures. Additionally, it covers in detail the opportunities afforded ...

Harold Weinstock; Martin Nisenoff

2012-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "nato sym bol" 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

Acceleration and energy loss in N = 4 SYM  

Science Conference Proceedings (OSTI)

This contribution is based on two talks given at the XIII Mexican School of Particles and Fields. We revisit some of the results presented in [19], concerning the rate of energy loss of an accelerating quark in strongly-coupled N = 4 super-Yang-Mills.

Chernicoff, Mariano; Gueijosa, Alberto [Departamento de Fisica de Altas Energias, Instituto de Ciencias Nucleares Universidad Nacional Autonoma de Mexico (Mexico)

2009-04-20T23:59:59.000Z

22

Acceleration and Energy Loss in N=4 SYM  

E-Print Network (OSTI)

We give a brief overview of the results obtained in arXiv:0803.3070, concerning the rate of energy loss of an accelerating quark in strongly-coupled N=4 super-Yang-Mills, both at zero and finite temperature. For phenomenological purposes, our main result is that, when a quark is created within the plasma together with its corresponding antiquark, the quark starts feeling the plasma only after the q-\\bar{q} separation becomes larger than the (v-dependent) screening length, and from this point on the motion is correctly described by the analytic energy loss formula previously derived by Herzog et al. and Gubser within the stationary or late-time approximations. The present text is a slightly expanded version of two talks given at the XIII Mexican School of Particles and Fields in October 2008.

Mariano Chernicoff; Alberto Guijosa

2009-03-02T23:59:59.000Z

23

Parton picture for the strongly coupled SYM plasma  

E-Print Network (OSTI)

Deep inelastic scattering off the strongly coupled N=4 supersymmetric Yang-Mills plasma at finite temperature can be computed within the AdS/CFT correspondence, with results which are suggestive of a parton picture for the plasma. Via successive branchings, essentially all partons cascade down to very small values of the longitudinal momentum fraction x and to transverse momenta smaller than the saturation momentum Q_s\\sim T/x. This scale Q_s controls the plasma interactions with a hard probe, in particular, the jet energy loss and its transverse momentum broadening.

E. Iancu

2008-05-27T23:59:59.000Z

24

NATO Advanced Study Institute "Special Detection Technique (Polarimetry) and  

E-Print Network (OSTI)

for Space Studies, New York, USA SCIENTIFIC ORGANIZING COMMITTEE James Hough University of Hertfordshire, NASA HQ, Washington, DC, U

25

NATO ARW Jun10 CLIMATE SECURITY LINKS (4) SECURITY REFERENCES:  

E-Print Network (OSTI)

Some Some delegations raised doubts regarding Councils s role on the issue, while others, particularly small island states, welcomed Councils consideration

Nobel Peace Prize; Nobel Peace Prize; Peace References

2007-01-01T23:59:59.000Z

26

Bibliography of the Phytoseiidae (1960-1994) 1. Abbasova, E.D. 1966. [Study on predators of tetranychid mites of Bol'shom Caucasia (Phytoseiidae)] [in  

E-Print Network (OSTI)

Charles & Madonna Flemming Thomas & Beverly Gerding Karen & Thomas Jeppson Robert & Nancy Lipper Marvin

Choate, Paul M.

27

Structure and Electronic Transport in Graphene Wrinkles Wenjuan Zhu,* Tony Low, Vasili Perebeinos, Ageeth A. Bol, Yu Zhu, Hugen Yan, Jerry Tersoff,  

E-Print Network (OSTI)

-like carbon. Nature 2011, 472, 74-78. (8) Han, S.-J.; et al. High-Frequency Graphene Voltage Amplifier. Nano-scale high-speed graphene electronics. KEYWORDS: graphene, fold, wrinkle, electronic transport, ripples The advance of a new generation of very high speed graphene electronics1-8 depends upon understanding

Perebeinos, Vasili

28

The Standards Actions, January 1996  

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

Actions Actions Resistance of HVAC Air Ducts and Fittings (new standard); comments due February 6, 1996. * ISO/ASQC A3534-1, Statis- tics - Vocabulary and Sym- bols - Probability and Gen- eral Statistical Terms (new standard); comments due January 26, 1996. * ISO/ASTM/ASQC/NSF 14004, Environmental management systems - General guidelines on principles, systems and Technical Standards Program Document Status as of 12/31/95 Documents Recently Published The Technical Standards Program is sponsoring a project at OSTI to place all DOE technical standards (i.e., standards and handbooks) on the Internet. To date, 57 DOE technical standards have been placed on the Internet at the following address: http://apollo.osti.gov/ html/techstds/ techstds.html The following DOE technical standards have recently

29

Thermal N = 4 SYM theory as a 2D Coulomb gas  

E-Print Network (OSTI)

We consider N = 4 supersymmetric Yang-Mills theory with SU(N) gauge group at large N and at finite temperature on a spatial S^3. We show that, at finite weak 't Hooft coupling, the theory is naturally described as a two dimensional Coulomb gas of complex eigenvalues of the Polyakov-Maldacena loop, valued on the cylinder. In the low temperature confined phase the eigenvalues condense onto a strip encircling the cylinder, while the high temperature deconfined phase is characterised by an ellipsoidal droplet of eigenvalues.

Sean A. Hartnoll; S. Prem Kumar

2006-10-10T23:59:59.000Z

30

Energy Loss of Gluons, Baryons and k-Quarks in an N=4 SYM Plasma  

E-Print Network (OSTI)

We consider different types of external color sources that move through a strongly-coupled thermal N=4 super-Yang-Mills plasma, and calculate, via the AdS/CFT correspondence, the dissipative force (or equivalently, the rate of energy loss) they experience. A bound state of k quarks in the totally antisymmetric representation is found to feel a force with a nontrivial k-dependence. Our result for k=1 (or k=N-1) agrees at large N with the one obtained recently by Herzog et al. and Gubser, but contains in addition an infinite series of 1/N corrections. The baryon (k=N) is seen to experience no drag. Finally, a heavy gluon is found to be subject to a force which at large N is twice as large as the one experienced by a heavy quark, in accordance with gauge theory expectations.

Mariano Chernicoff; Alberto Guijosa

2006-11-15T23:59:59.000Z

31

Quantum Mechanics of Lowest Landau Level Derived from N=4 SYM with Chemical Potential  

E-Print Network (OSTI)

The low energy effective theory of N=4 super-Yang-Mills theory on S^3 with an R-symmetry chemical potential is shown to be the lowest Landau level system. This theory is a holomorphic complex matrix quantum mechanics. When the value of the chemical potential is not far below the mass of the scalars, the states of the effective theory consist only of the half-BPS states. The theory is solved by the operator method and by utilizing the lowest Landau level projection prescription for the value of the chemical potential less than or equal to the mass of the scalars. When the chemical potential is below the mass, we find that the degeneracy of the lowest Landau level is lifted and the energies of the states are computed. The one-loop correction to the effective potential is computed for the commuting fields and treated as a perturbation to the tree level quantum mechanics. We find that the perturbation term has non-vanishing matrix elements that mix the states with the same R-charge.

D. Yamada

2005-09-28T23:59:59.000Z

32

N=4 SYM on S^3 with Near Critical Chemical Potentials  

E-Print Network (OSTI)

We study the N = 4 theory at weak coupling, on a three sphere in the grand canonical ensemble with R symmetry chemical potentials. We focus attention on near critical values for the chemical potentials, above which the classical theory has no ground state. By computing a one loop effective potential for the light degrees of freedom in this regime, we show the existence of flat directions of complex dimension N, 2N and 3N for one, two and three critical chemical potentials respectively; these correspond to one half, one quarter and one-eighth BPS states becoming light respectively at the critical values. At small finite temperature we show that the chemical potentials can be continued beyond their classical limiting values to yield a deconfined metastable phase with lifetime diverging in the large N limit. Our low temperaure analysis complements the high temperature metastability found by Yamada and Yaffe. The resulting phase diagram at weak coupling bears a striking resemblance to the strong coupling phase diagram for charged AdS black holes. Our analysis also reveals subtle qualitative differences between the two regimes.

Timothy J. Hollowood; S. Prem Kumar; Asad Naqvi; Philip Wild

2008-03-19T23:59:59.000Z

33

NATO's Relations with New Members and Partners Contributions to Peacekeeping, Counterterrorism, and Humanitarian Missions  

E-Print Network (OSTI)

Armenia (December 2005), Azerbaijan (May 2005), Bosnia (January 2008), Georgia (October 2004), Kazakhstan to join the new program in 2004, followed by Azerbaijan, Armenia, Kazakhstan, and Moldova.15 In 2008. This tendency is illustrated by the cases of Azerbaijan, Georgia, and Ukraine, whose participation

34

Support of the NATO Effects Task Group by Los Alamos National Laboratory  

DOE Green Energy (OSTI)

A method is outlined for measuring the transient attenuation of optical fibers and/or cables exposed to a pulse of radiation (gamma rays, x-rays, electrons, protons, neutrons, etc). It can be employed to determine the level of radiation-induced attenuation (in units of dB/km as a function of time) produced in single-mode or multi-mode optical fibers, in either cabled or uncabled form, due to pulsed exposure to radiation. Co{sup 60} radiation-induced attenuation is measured by optical time domain reflectometry (OTDR) techniques and compared to conventional optical throughput measurements. Relative advantages and disadvantages of the OTDR technique are discussed.

Lyons, P.B.

1991-01-01T23:59:59.000Z

35

NATO/CCMS Pilot Study Evaluation of Demonstrated and Emerging Technologies for the Treatment and Clean Up  

E-Print Network (OSTI)

This document reports on the second meeting of the Phase III Pilot Study on the Evaluation of Demonstrated and Emerging Technologies for the Treatment and Clean Up of Contaminated Land and Groundwater. The United States is the lead country for the Pilot Study, and Germany and The Netherlands are the Co-Pilot countries. The first phase was successfully concluded in 1991, and the results were published in three volumes. The second phase, which expanded to include newly emerging technologies, was concluded in 1997; final reports documenting 52 completed projects and the participation of 14 countries were published in June 1998. Through these pilot studies, critical technical information was made available to participating countries and the world community. The Phase III study focuses on the technologies for treating contaminated land and groundwater. This Phase is addressing issues of sustainability, environmental merit, and cost-effectiveness, in addition to continued emphasis on emerging remediation technologies. The objectives of the study are to critically evaluate technologies, promote the appropriate use of technologies, use information technology systems to disseminate the products, and to foster innovative thinking in the area of contaminated land. The Phase III Mission Statement is provided at the end of this report

Annual Report Number; Groundwater (phase Iii; Of Contaminated L

2000-01-01T23:59:59.000Z

36

U.S.-Russian experts NATO collaborative research grant exchange visit meeting on excess Pu ceramics formulations and characterizations  

SciTech Connect

This document contains the agenda and meeting notes. Topics of discussion included US Pu disposition ceramics activities, Russian experience and proposals in Pu ceramics, and development of possible Russian ceramic proposals or collaborations.

Jardine, L.J., LLNL

1998-11-24T23:59:59.000Z

37

SPACEWAR WIRE MILITARY SPACE  

E-Print Network (OSTI)

arrest officer from Azerbaijan over brutal murder NATO chief hopes Putin will attend bloc's June summit

38

Aircraft Corrosion Fatigue Assessment  

Science Conference Proceedings (OSTI)

...Fatigue in the Presence of Corrosion, Proc., NATO Research and Technology Organization Meeting (Corfu,

39

PKS 0743$-$67: An Ultra-luminous Accretion Disk and a High Kinetic Luminosity Jet  

E-Print Network (OSTI)

In this letter, deep radio observations of the quasar PKS 0743$-$67 are presented that reveal a central engine capable of driving jets with enormous kinetic luminosity, $Q>4.1 \\times 10^{46}\\mathrm{ergs/s}$. This result is significant because archival optical spectral data indicates that the accretion disk has a thermal luminosity, $L_{bol}>2\\times 10^{47}\\mathrm{ergs/s}$. Furthermore, estimates of the central black hole mass from line widths indicate that $L_{bol}/L_{Edd}\\approx 1$. This suggests that neither a large $L_{bol}$ nor $L_{bol}/L_{Edd}$ suppresses jet power in quasars, despite claims that they do in the recent literature. Earlier studies have found $L_{bol}$ and $Q$ are correlated in blazars. However, by removing the BL-Lacs and leaving only the quasars in the sample, we found that $Q$ is very weakly correlated with $L_{bol}$ in the subsample.

Brian Punsly; Steven Tingay

2005-10-03T23:59:59.000Z

40

A simple exact separation algorithm for 2-matching inequalities  

E-Print Network (OSTI)

Simn Bol?var University, Venezuela. Abstract. In this work we present an exact separation algorithm for the so called 2-matching in- equalities, otherwise known ...

Note: This page contains sample records for the topic "nato sym bol" 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

Spectrochimica Acta Part B  

Laser Ablation Molecular Isotopic Spectrometry Richard E. Russoa,b,?, Alexander A. Bol'shakovb, Xianglei Maoa, Christopher P. McKayc, Dale L. Perrya, Osman Sorkhabia

42

Donna Hurley  

Science Conference Proceedings (OSTI)

... NATO-NSF Postdoctoral Fellowship (1987-1988). Exxon Industrial Fellowship, University of Illinois (1982-1983). Graduate ...

2013-06-25T23:59:59.000Z

43

ASH VITRIFICATION -A TECHNOLOGY READY FOR TRANSFER  

E-Print Network (OSTI)

methods for treating ash in the near future [1]. The lack of specific rules by RCRA has led to confusion the Toxic Characterization Leaching Procedure (TCLP) extraction tests conducted on slag samples which were(ml!!l) in TCLP Extract Arsenic BQL · Barium 0.8 Cadmium 0.010 Chromium BOL Lead 0.43 Mercury 0.0007 Selenium BOL

Columbia University

44

Fowler, ed.: Models and Great Basin Prehistory: A Symposium  

E-Print Network (OSTI)

A Sym- posium. Don D. Fowler, ed. Reno: Desert Researchhis introductory paper, Don Fowler argues that the study ofjustification. The merit of Fowler's comments is undeniable,

Bettinger, Robert L

1978-01-01T23:59:59.000Z

45

IBM Research TREC-2002 Video Retrieval System  

Science Conference Proceedings (OSTI)

... for effectively searching and filtering digital video content. ... In A. Kent, editor, Encyclopedia of Library and In ... In IS&T/SPIE Sym- posium on Electronic ...

2003-02-13T23:59:59.000Z

46

Reversible Acid Gas Capture Using CO2-Binding Organic Liquids  

SciTech Connect

Acid gas scrubbing technology is predominantly aqueous alkanolamine based. Of the acid gases, CO2, H2S and SO2 have been shown to be reversible, however there are serious disadvantages with corrosion and high regeneration costs. The primary scrubbing system composed of monoethanolamine is limited to 30% by weight because of the highly corrosive solution. This gravimetric limitation limits the CO2 volumetric (?108 g/L) and gravimetric capacity (?7 wt%) of the system. Furthermore the scrubbing system has a large energy penalty from pumping and heating the excess water required to dissolve the MEA bicarbonate salt. Considering the high specific heat of water (4 j/g-1K-1), low capacities and the high corrosion we set out to design a fully organic solvent that can chemically bind all acid gases i.e. CO2 as reversible alkylcarbonate ionic liquids or analogues thereof. Having a liquid acid gas carrier improves process economics because there is no need for excess solvent to pump and to heat. We have demonstrated illustrated in Figure 1, that CO2-binding organic liquids (CO2BOLs) have a high CO2 solubility paired with a much lower specific heat (<1.5 J/g-1K-1) than aqueous systems. CO2BOLs are a subsection of a larger class of materials known as Binding Organic Liquids (BOLs). Our BOLs have been shown to reversibly bind and release COS, CS2, and SO2, which we denote COSBOLS, CS2BOLs and SO2BOLs. Our BOLs are highly tunable and can be designed for post or pre-combustion gas capture. The design and testing of the next generation zwitterionic CO2BOLs and SO2BOLs are presented.

Heldebrant, David J.; Koech, Phillip K.; Yonker, Clement R.; Rainbolt, James E.; Zheng, Feng

2010-08-31T23:59:59.000Z

47

Political soldiers and democratic institution-building in Bosnia-Herzegovina .  

E-Print Network (OSTI)

??This thesis seeks to identify if, in the course of the United States and NATO s democratic institution building efforts in Bosnia-Herzegovina, the United States (more)

Boyce, Brian M.

2006-01-01T23:59:59.000Z

48

Newsletter Spring 1998  

E-Print Network (OSTI)

Policy Paper 38: Europe after NATO Expansion. A IGCC/UCDC International Affairsinternational affairs for faculty and students throughout the UC system. These include policy

1998-01-01T23:59:59.000Z

49

Materials for Nuclear Power: Digital Resource Center - BOOK ...  

Science Conference Proceedings (OSTI)

Feb 12, 2007 ... Select, Sandbox, Open Discussion Regarding Materials for Nuclear Power ... NATO Science Series II:Mathematics, Physics and Chemistry, Vol.

50

- NORTH ATLANTIC TREATY ORGANIZATION  

E-Print Network (OSTI)

According to its Charter, the mission of AGARD is to bring together the leading personalities of the NATO nations in the

Volume I (french

1997-01-01T23:59:59.000Z

51

Analysis and Models of Bilateral Investment Treaties using a Social Networks Approach  

E-Print Network (OSTI)

Organization NC0 noncommissioned officer NPT Non-Proliferation Treaty OCS Officer Candidate School OPD independently targetable reentry vehicle MIT Massachusetts Institute of Technology NATO North Atlantic Treaty

Bonomo, Flavia

52

Energy Emergency Energy Emergency Preparedness Quarterly Preparedness...  

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

Supports 2012 NATO Summit Visit us at: http:energy.govoeservicesenergy-assuranceemergency-preparedness OE and the National Association of State Energy Officials (NASEO)...

53

SYMMETRY POINTS OF A CONVEX SET:  

E-Print Network (OSTI)

measures are all invariant under invertible affine transformation and/or change in ... given an approximate analytic center xa of S, will compute an approximation of sym(S) to .... We assume that S has an interior as a matter of convenience, as one can always ...... values are used in the data for the (m + 1)st linear program.

54

List of Publications (Reverse Chronological Order) Click on the blue publication numbers to access the full text pdfs. You may need to be logged in to your institution web pages  

E-Print Network (OSTI)

ion conductors, mixed conductors and their solid oxide fuel cell applications. A.R. West, Bol. Soc. Nair, D. Suvorov, R. W. Schwartz and R. Guo), (2009) John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10

Ojovan, Michael

55

List of Publications (Reverse Chronological Order) Click on the blue publication numbers to access the full text pdfs. You may need to be logged in to your institution web  

E-Print Network (OSTI)

ion conductors, mixed conductors and their solid oxide fuel cell applications. A.R. West, Bol. Soc & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470528990.ch17 414. Origin(s) of the apparent high

Ojovan, Michael

56

J.H. Harding: Publications Chapters in books  

E-Print Network (OSTI)

ion conductors, mixed conductors and their solid oxide fuel cell applications. A.R. West, Bol. Soc. Nair, D. Suvorov, R. W. Schwartz and R. Guo), (2009) John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10

Ojovan, Michael

57

Methodology for using prompt gamma activation analysis to measure the binary diffusion coefficient of a gas in a porous medium  

E-Print Network (OSTI)

ion conductors, mixed conductors and their solid oxide fuel cell applications. A.R. West, Bol. Soc) John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470528990.ch17 414. Origin

Deinert, Mark

58

On Making SCTP Robust to Spurious Retransmissions Sourabh Ladha+  

E-Print Network (OSTI)

in the Internet by events such as route flipping [All00, AP99, Bol93]. If seen from a transport perspective Research Laboratory (DAAD19-01-2-0011), and by the CISCO University Partnership Program. spikes quite

Delaware, University of

59

_MainReport  

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

Capacity (BOL) (Ah) 63.2 Present Measured Capacity (Ah) 53.4 ESS On-road Testing Results Miles driven 16,440.1 City % of miles 53% Hwy % of miles 47% Amp Hours throughput lifetime...

60

_MainReport  

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

Capacity (BOL) (Ah) 63.2 Present Measured Capacity (Ah) 60.6 ESS On-road Testing Results Miles driven 3,679.0 City % of miles 54% Hwy % of miles 46% Amp Hours throughput lifetime...

Note: This page contains sample records for the topic "nato sym bol" 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

_MainReport  

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

Capacity (BOL) (Ah) 63.2 Present Measured Capacity (Ah) 59.2 ESS On-road Testing Results Miles driven 5,103.3 City % of miles 51% Hwy % of miles 49% Amp Hours throughput lifetime...

62

_MainReport  

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

Capacity (BOL) (Ah) 63.2 Present Measured Capacity (Ah) 54.0 ESS On-road Testing Results Miles driven 12,021.5 City % of miles 52% Hwy % of miles 48% Amp Hours throughput lifetime...

63

_MainReport  

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

Capacity (BOL) (Ah) 63.2 Present Measured Capacity (Ah) 56.8 ESS On-road Testing Results Miles driven 8,622.7 City % of miles 52% Hwy % of miles 48% Amp Hours throughput lifetime...

64

Genital Depilation and Power in Classical Greece  

E-Print Network (OSTI)

La Rocca. 1978. Eros in Greece. London. Bol, Peter C. 1978.Sexual Life in Ancient Greece. London. Burkert, Walter.Men and Maidens in Ancient Greece. Chicago. Freud, Sigmund.

Walker, Paige

2012-01-01T23:59:59.000Z

65

Robustness and infrared sensitivity of various observables in the application of AdS/CFT to heavy ion physics  

E-Print Network (OSTI)

We investigate the robustness with respect to the introduction of nonconformality of five properties of strongly coupled plasmas that have been calculated in K = 4 supersymmetric Yang-Mills (SYM) theory at nonzero temperature, ...

Shi, Yeming

2008-01-01T23:59:59.000Z

66

Comparing the use of symmetry in constraint processing and model checking  

E-Print Network (OSTI)

Donaldson,A. Miller,A. Calder,M. Proceedings of the the 4th International Workshop on Symmetry and Constraint Satisfaction Problems (SymCon'04) pp 18-25

Donaldson, A.

67

Radiation of a circulating quark in strongly coupled N = 4 super Yang-Mills theory  

E-Print Network (OSTI)

The energy density and angular distribution of power radiated by a quark undergoing circular motion in strongly coupled N? = ?4 supersymmetric Yang?Mills (SYM) theory is computed using gauge?gravity duality. The results ...

Athanasiou, Christiana

68

ACTINIDE-SPECIFIC SEQUESTERING AGENTS AND DECONTAMINATION APPLICATIONS  

E-Print Network (OSTI)

In: The Health Eff, of Plutonium and Radium, Proc. Sym. ,The Metabolism of Compounds Plutonium and Other Actinides.In: The Radiobiology of Plutonium. Stover, B. J. , Jee, H.

Smith, William L.

2013-01-01T23:59:59.000Z

69

NEWTON, Ask a Scientist at Argonne National Labs  

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

Society (Toronto, Canada, May 14-18, 2000). 33. "Using Ionic Liquids for Oil Shale Extraction", M. Koel, W. K. Hollis, T. J. Lombardo, B.F. Smith, and J.B. Rubin, NATO...

70

Alteraes na Homepage e nos Produtos -Updates in the Homepage and Alteraes na Homepage Relacionadas com o Risco de Fogo -Updates in the  

E-Print Network (OSTI)

created for Bolivia 2006 Implementada novas paginas de Paraguai, Peru e Venezuela. New web pages implemented for Paraguay, Peru and. Venezuela. 2006 Reestilização da pagina de links com acervo de mapas Paraguai (em adição ao da Bolívia e Peru); apresentada o monitoramento à equipe da Venezuela e realizada

71

GEOSS in Americas Symposium Side Session -Capacity Building  

E-Print Network (OSTI)

y15 specialists from SA (Argentina, Brazil, Chile y Venezuela) and experts from NA (Canada, EEUU)Venezuela FLASAFLASA VenezuelaVenezuela Universidad SimUniversidad Simóón Boln Bolíívarvar USBUSB VenezuelaVenezuela of Venezuela ·It is a depression ~1400 m deep, connected to the Caribbean Sea by two shallow channels (~140 m

72

DIFFERENTIAL OPERATORS COMMUTING WITH INVARIANT T. LEVASSEUR AND J. T. STAFFORD  

E-Print Network (OSTI)

DIFFERENTIAL OPERATORS COMMUTING WITH INVARIANT FUNCTIONS T. LEVASSEUR AND J. T. STAFFORD Abstract AND J. T. STAFFORD Theorem 1.3. (i) Let E = O(g)#(g) # DerO(g). Then Sym O(g) (E) is a factorial of part (iii) is equivalent to the condition (F 2 ). # #12; 4 T. LEVASSEUR AND J. T. STAFFORD We end

Levasseur, Thierry

73

NUMERICAL INVESTIGATION OF TEMPERATURE EFFECTS DURING THE INJECTION OF CARBON DIOXIDE INTO BRINE  

E-Print Network (OSTI)

project (cf. Sec. 3). The CO2 is assumed to move away from the injection well in a radially sym- metric illustrating saturations. Also two observation wells 50 m and 100 m away from the injection point are shown. The temperatures at the first observation well (50 m distance from the injection point, right underneath

Cirpka, Olaf Arie

74

Proceedings of the 2005 international symposium on Wikis  

Science Conference Proceedings (OSTI)

Welcome to the proceedings of the 2005 International Symposium on Wikis (WikiSym for short), the first international conference dedicated to wiki research and practice!Paper SelectionWe received 20 paper submissions, of which we selected ten to ...

Dirk Riehle

2005-10-01T23:59:59.000Z

75

An object oriented code for simulating supersymmetric Yang--Mills theories  

E-Print Network (OSTI)

Discretization of supersymmetric Yang--Mills (SYM) theories is an old problem in lattice field theory. It has resisted solution until recently when new ideas drawn from orbifold constructions and topological field theories have been brought to bear on the question. The result has been the creation of a new class of lattice gauge theories in which the lattice action is invariant under one or more supersymmetries. The resultant theories are local, free of doublers and also possess exact gauge-invariance. In principle they form the basis for a truly non-perturbative definition of the continuum SYM theories. In the continuum limit they lead to a version of the Yang-Mills theory formulated in terms of {\\it twisted} fields. In this paper, we briefly review these ideas and then go on to describe the details of a C++ code, which can be used to simulate these theories. We sketch the design of the code, with particular emphasis being placed on SYM theories with $\\cN=2$ in two dimensions and $\\cN=4$ in three and four dimensions, making one-to-one comparisons between the essential components of the SYM theories and their corresponding counterparts appearing in the simulation

Simon Catterall; Anosh Joseph

2011-08-06T23:59:59.000Z

76

Symmetry Reduction for SAT Representations of Transition Systems Jussi Rintanen  

E-Print Network (OSTI)

the symmetric states at given time points, but to order the sequences of transitions. Tran- sition sequences can be eliminated by order- ing transition sequences, as transition relations that are not symmetric in some states from transition sequences also removes all sym- metry from the sequences of states these sequences

Nebel, Bernhard

77

Molecular gating dynamics of the cytoplasmic domains of inwardly rectifying potassium (Kir) channels  

E-Print Network (OSTI)

and the staff at ALS and SSRL for X-ray data collection.We thank ALS and SSRL for X-ray data collection. This work= 76.36 b = 76.37 c = 92.16 SSRL a R sym =? h ? 1 |I 1 (h) -

Pegan, Scott Dusan

2006-01-01T23:59:59.000Z

78

3C 216: A Powerful FRII Seyfert 1 Galaxy  

E-Print Network (OSTI)

3C 216 has a weak accretion flow luminosity, well below the Seyfert1/QSO dividing line, weak broad emission lines (BELs) and powerful radio lobes. As a consequence of the extreme properties of 3C 216, it is the most convincing example known of an FR II radio source that is kinetically dominated: the jet kinetic luminosity, $Q$, is larger than the total thermal luminosity (IR to X-ray) of the accretion flow, $L_{bol}$. Using three independent estimators for the central black hole mass, we find that the jet in 3C 216 is very super-Eddington, $3.3 L_{Edd}1$, either presently or in the past based on the rarity of $L_{bol}>L_{Edd}$ quasars. The existence of $R(t)>1$ AGN is a strong constraint on the theory of the central engine of FRII radio sources.

Brian Punsly

2006-09-07T23:59:59.000Z

79

Kinetically Dominated FRII Radio Sources  

E-Print Network (OSTI)

The existence of FR II objects that are kinetically dominated, the jet kinetic luminosity, $Q$, is larger than the total thermal luminosity (IR to X-ray) of the accretion flow, $L_{bol}$, is of profound theoretical interest. Such objects are not expected in most theoretical models of the central engine of radio loud AGN. Thus, establishing such a class of objects is an important diagnostic for filtering through the myriad of theoretical possibilities. This paper attempts to establish a class of quasars that have existed in a state of kinetic dominance, $R(t)\\equiv Q(t)/L_{bol}(t)>1$, at some epoch, $t$. It is argued that the 10 quasars in this article with a long term time average $Q(t)$, $\\bar{Q}$, that exceed $L_{Edd}$ are likely to have satisfied the condition $R(t)>1$ either presently or in the past based on the rarity of $L_{bol}>L_{Edd}$ quasars. Finally, the existence of these sources is discussed in the context of the theory of the central engine.

Brian Punsly

2006-10-02T23:59:59.000Z

80

A Bayesian Inference Analysis of the X-ray Cluster Luminosity-Temperature Relation  

E-Print Network (OSTI)

We present a Bayesian inference analysis of the Markevitch (1998) and Allen & Fabian (1998) cooling flow corrected X-ray cluster temperature catalogs that constrains the slope and the evolution of the empirical X-ray cluster luminosity-temperature (L-T) relation. We find that for the luminosity range 10^44.5 erg s^-1 < L_bol < 10^46.5 erg s^-1 and the redshift range z < 0.5, L_bol is proportional to T^2.80(+0.15/-0.15)(1+z)^(0.91-1.12q_0)(+0.54/-1.22). We also determine the L-T relation that one should use when fitting the Press- Schechter mass function to X-ray cluster luminosity catalogs such as the Einstein Medium Sensitivity Survey (EMSS) and the Southern Serendipitous High- Redshift Archival ROSAT Catalog (Southern SHARC), for which cooling flow corrected luminosities are not determined and a universal X-ray cluster temperature of T = 6 keV is assumed. In this case, L_bol is proportional to T^2.65(+0.23/-0.20)(1+z)^(0.42-1.26q_0)(+0.75/-0.83) for the same luminosity and redshift ranges.

D. E. Reichart; F. J. Castander; R. C. Nichol

1998-10-29T23:59:59.000Z

Note: This page contains sample records for the topic "nato sym bol" 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

Greenhouse effect, sea level and drought  

SciTech Connect

This book contains the proceedings of a NATO sponsored symposium in 1989. The book is divided into five parts: (1) Greenhouse Effects (6 papers); (2) Sea Level (4 papers); (3) Drought and Water Deficiency (10 papers); (4) Management, Techniques, and Case Studies (20 papers); and (5) Conclusions (1 paper).

Paepe, R.; Fairbridge, R.; Jelgersma, S. (eds.)

1990-01-01T23:59:59.000Z

82

This publication may be used by the US Army, US Navy, and US Air Force during training, exercises, and contingency operations.  

E-Print Network (OSTI)

and completion in North Atlantic Treaty Organization (NATO) countries. ACKNOWLEDGMENTS Acknowledgment is gratefully made to the organizations listed below for permitting the use of copyrighted material is HQ, TRADOC. Submit changes for improving this publication on Department of the Army (DA) Form 2028

US Army Corps of Engineers

83

Ethan M. Lange, Ph.D. Associate Professor  

E-Print Network (OSTI)

1994-1997 M.A., University of California, Los Angeles, Mathematics 1991-1994 B.S., University-telangiectasia. (R.A. Gatti and R.B. Painter, Eds) NATO ASI Series Vol. H 77. Springer-Verlag Berlin Heidelberg. 37 for an association between prostate cancer and chromosome 8q24 and 10q11 genetic variants in African American men

Crews, Stephen

84

SYSTEM DESIGN Lessons Learned  

E-Print Network (OSTI)

· MCFC with steam reformer · Fuel reformer built for methane production · 302 Hours On Load Operation Air and Spent Reformate Recuperators Multi Stream Steam Generator To Regen Burner Fuel Condensate (NATO F76/JP5 Logistics Fuel) Ship Service Fuel Cell Program · Low Temperature PEM with ATR reformer

85

JAN 183 26 [1] R.S. Bird. Lectures on constructive functional programming. In M. Broy, editor, Constructive Methods  

E-Print Network (OSTI)

University of Technology, 1990. [3] C. Morgan. Programming from Specifications. Series in Computer Science (C.A.RJAN 183 ­26 END OD END References [1] R.S. Bird. Lectures on constructive functional programming. In M. Broy, editor, Constructive Methods in Computing Science, NATO ASI Series F, pages 151

86

Nonlinear Dynamics of Ultra-Cold Gas: Collapse of Bose Gas With Attractive Interaction  

E-Print Network (OSTI)

Solutions for the Nonlinear Schrodinger equation for collapsing Bose gas with attraction. This is a copy of the paper published in 1992 in Proceedings of NATO Advanced Research workshop on Singularities in Fluids, Plasmas and Optics (Heraklion, Greece) edited by R.E. Caflisch and G.C. Papanicolaou (Kluwer Academic).

Flambaum, V V

2012-01-01T23:59:59.000Z

87

Density slope of the nuclear symmetry energy from the neutron skin thickness of heavy nuclei  

E-Print Network (OSTI)

Expressing explicitly the parameters of the standard Skyrme interaction in terms of the macroscopic properties of asymmetric nuclear matter, we show in the Skyrme-Hartree-Fock approach that unambiguous correlations exist between observables of finite nuclei and nuclear matter properties. We find that existing data on neutron skin thickness Delta r(np) of Sn isotopes give an important constraint on the symmetry energy E(sym)(rho(0)) and its density slope L at saturation density rho(0). Combining these constraints with those from recent analyses of isospin diffusion and the double neutron/proton ratio in heavy-ion collisions at intermediate energies leads to a more stringent limit on L approximately independent of E(sym)(rho(0)). The implication of these new constraints on the Delta r(np) of (208)Pb as well as the core-crust transition density and pressure in neutron stars is discussed.

Chen, Lie-Wen; Ko, Che Ming; Li, Bao-An; Xu, Jun.

2010-01-01T23:59:59.000Z

88

Low-dimensionality and predictability of solar wind and global magnetosphere during magnetic storms  

E-Print Network (OSTI)

The storm index SYM-H, the solar wind velocity v, and interplanetary magnetic field Bz show no signatures of low-dimensional dynamics in quiet periods, but tests for determinism in the time series indicate that SYM-H exhibits a significant low-dimensional component during storm time, suggesting that self-organization takes place during magnetic storms. Even though our analysis yields no discernible change in determinism during magnetic storms for the solar wind parameters, there are significant enhancement of the predictability and exponents measuring persistence. Thus, magnetic storms are typically preceded by an increase in the persistence of the solar wind dynamics, and this increase is also present in the magnetospheric response to the solar wind.

Zivkovic, Tatjana

2011-01-01T23:59:59.000Z

89

Black Funnels  

E-Print Network (OSTI)

The Hartle-Hawking state of $\\mathcal{N}=4$ SYM at strong coupling and large $N$ on a fixed black hole background has two proposed gravitational duals: a black funnel or a black droplet. We construct the black funnel solutions that are dual to the Hartle-Hawking state on a Schwarzschild black hole and on a class of three-dimensional asymptotically flat black hole backgrounds. We compute their holographic stress tensor and argue for the stability of these solutions.

Santos, Jorge E

2012-01-01T23:59:59.000Z

90

Black Funnels  

E-Print Network (OSTI)

The Hartle-Hawking state of $\\mathcal{N}=4$ SYM at strong coupling and large $N$ on a fixed black hole background has two proposed gravitational duals: a black funnel or a black droplet. We construct the black funnel solutions that are dual to the Hartle-Hawking state on a Schwarzschild black hole and on a class of three-dimensional asymptotically flat black hole backgrounds. We compute their holographic stress tensor and argue for the stability of these solutions.

Jorge E. Santos; Benson Way

2012-08-30T23:59:59.000Z

91

Algorithmique pour l'algbre linaire vrifie : Vrification du facteur R dans la factorisation QR.  

E-Print Network (OSTI)

Algorithmique pour l'algèbre linéaire vérifiée : Vérification du facteur R dans la factorisation QR symétriques positives définies, et soit E = A - A. Soient R et R les facteurs de Cholesky de A et A respectivement. On note G = | R-T E R-1 |. Si (G) R - R| triu(G(I - G)-1 )| R|. Démonstration. En

Louvet, Nicolas

92

A Predictive Model of Geosynchronous Magnetopause Crossings  

E-Print Network (OSTI)

We have developed a model predicting whether or not the magnetopause crosses geosynchronous orbit at given location for given solar wind pressure Psw, Bz component of interplanetary magnetic field (IMF) and geomagnetic conditions characterized by 1-min SYM-H index. The model is based on more than 300 geosynchronous magnetopause crossings (GMCs) and about 6000 minutes when geosynchronous satellites of GOES and LANL series are located in the magnetosheath (so-called MSh intervals) in 1994 to 2001. Minimizing of the Psw required for GMCs and MSh intervals at various locations, Bz and SYM-H allows describing both an effect of magnetopause dawn-dusk asymmetry and saturation of Bz influence for very large southward IMF. The asymmetry is strong for large negative Bz and almost disappears when Bz is positive. We found that the larger amplitude of negative SYM-H the lower solar wind pressure is required for GMCs. We attribute this effect to a depletion of the dayside magnetic field by a storm-time intensification of t...

Dmitriev, A; Chao, J -K

2013-01-01T23:59:59.000Z

93

RADIATION MECHANISM AND JET COMPOSITION OF GAMMA-RAY BURSTS AND GeV-TeV-SELECTED RADIO-LOUD ACTIVE GALACTIC NUCLEI  

Science Conference Proceedings (OSTI)

Gamma-ray bursts (GRBs) and GeV-TeV-selected radio-loud active galactic nuclei (AGNs) are compared based on our systematic modeling of the observed spectral energy distributions of a sample of AGNs with a single-zone leptonic model. We show that the correlation between the jet power (P{sub jet}) and the prompt gamma-ray luminosity (L{sub jet}) of GRBs is consistent, within the uncertainties, with the correlation between jet power and the synchrotron peak luminosity (L{sub s,jet}) of flat spectrum radio quasars (FSRQs). Their radiation efficiencies ({epsilon}) are also comparable (>10% for most sources), which increase with the bolometric jet luminosity (L{sub bol,jet}) for FSRQs and with the L{sub jet} for GRBs with similar power-law indices. BL Lac objects (BL Lacs) do not follow the P{sub jet}-L{sub s,jet} relation of FSRQs. They have lower {epsilon} and L{sub bol,jet} values than FSRQs, and a tentative L{sub bol,jet}-{epsilon} relation is also found, with a power-law index different from that of the FSRQs. The magnetization parameters ({sigma}) of FSRQs are on average larger than that of BL Lacs. They are anti-correlated with {epsilon} for the FSRQs, but positively correlated with {epsilon} for the BL Lacs. GeV narrow-line Seyfert 1 galaxies potentially share similar properties with FSRQs. Based on the analogy between GRBs and FSRQs, we suggest that the prompt gamma-ray emission of GRBs is likely produced by the synchrotron process in a magnetized jet with high radiation efficiency, similar to FSRQs. The jets of BL Lacs, on the other hand, are less efficient and are likely more matter-dominated.

Zhang Jin; Lu Ye; Zhang Shuangnan [National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 (China); Liang Enwei; Sun Xiaona [Department of Physics and GXU-NAOC Center for Astrophysics and Space Sciences, Guangxi University, Nanning 530004 (China); Zhang Bing, E-mail: lew@gxu.edu.cn [Department of Physics and Astronomy, University of Nevada, Las Vegas, NV 89154 (United States)

2013-09-01T23:59:59.000Z

94

Expression of genes associated with immunity in the endometrium of cattle with disparate postpartum uterine disease and fertility  

E-Print Network (OSTI)

of animals with dispa- rate disease outcomes and found that during Period 1, infertile animals had higher levels of IL1A and IL1B, and their cognate IL1R2, compared with fertile animals. Ratio of IL1A and IL1B to IL10 expressionFigure 7 Ratio of IL1A and IL1B... and follicle growth and function in cattle. Reproduction 2002, 123:837-845. 23. Rozen S, Skaletsky H: Primer3 on the WWW for general users and for biologist programmers Totowa, NJ: Humana Press; 2000. 24. Dohmen MJ, Joop K, Sturk A, Bols PE, Lohuis JA...

Herath, Shan; Lilly, Sonia T; Santos, Natalia R; Gilbert, Robert O; Goetze, Leopold; Bryant, Clare; White, John O; Cronin, James; Sheldon, I Martin

2009-05-29T23:59:59.000Z

95

Time Brightness  

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

Perlmutter, et al., in Thermonuclear Supernovae, NATO ASI, v. 486 (1997) Perlmutter, et al., in Thermonuclear Supernovae, NATO ASI, v. 486 (1997) Cosmology from . . . Time Brightness ... . . . 50-100 Fields Lunar Calendar Scheduled Follow-Up Imaging at Hubble, Cerro Tololo, WIYN, Isaac Newton Scheduled Follow-Up Spectroscopy at Keck Almost 1000 Galaxies per Field RESULT: ~24 Type Ia supernovae discovered while still brightening, at new moon Berkeley Lab Keck WIYN Cerro Tololo Isaac Newton Hubble Strategy We developed a strategy to guarantee a group of supernova discoveries on a certain date. Just after a new moon, we observe some 50 to 100 high-galactic lattitute fields-each containing almost a thousand high-redshift galaxies-in two nights on the Cerro Tololo 4-meter telescope with Tyson & Bernstein's wide-field camera. We return three weeks later to observe the same

96

US Navy mobility fuels: Worldwide survey and analysis of both commercial and Navy fuels. Final report  

SciTech Connect

Quality and worldwide availability of distillate fuels have become increasing concerns to the U.S. Department of Defense. In response to these concerns, the David Taylor Research Center (DTRC) has conducted a worldwide survey of such fuels through a contract with the National Institute for Petroleum and Energy Research (NIPER). Representative fuels were collected at both Navy and commercial ports around the world through a NIPER subcontract to ABS Worldwide Technical Services (ABSTECH). The collected fuels were Naval Distillate Fuel (MIL-F-16884H, NATO F-76), Marine Gas Oil (MGO), Heavy Marine Gas Oil (HMGO), and Marine Diesel Fuel (MDF) for the Navy; Automotive/Truck Diesel for the Army; and Aviation Turbine Fuel (MIL-T-5624L, NATO JP-5) for the Naval Air Propulsion Center. The Navy F-76 fuel samples were characterized at NIPER by 44 different fuel property analyses.

Woodward, P.W.; Shay, J.Y.

1989-07-01T23:59:59.000Z

97

Canonical quantum gravity and the problem of time  

E-Print Network (OSTI)

This is the write-up of my lectures at the NATO Summer School held in Salamanca in June 1992. The paper deals with the problem of time in quantum gravity. All the major schemes are reviewed. Please note that the paper is in two parts for ease of email transmission; this is part 1. The mailer from gr-qc may further subdivide these two sections.

Isham, C J

1992-01-01T23:59:59.000Z

98

Computerized international geothermal information systems  

DOE Green Energy (OSTI)

The computerized international geothermal energy information system is reviewed. The review covers establishment of the Italy - United States linked data centers by the NATO Committee on Challenges of Modern Society, through a bilateral agreement, and up to the present time. The result of the information exchange project is given as the bibliographic and numerical data available from the data centers. Recommendations for the exchange of computerized geothermal information at the international level are discussed.

Phillips, S.L.; Lawrence, J.D.; Lepman, S.R.

1980-03-01T23:59:59.000Z

99

Acid Gas Capture Using CO2-Binding Organic Liquids  

SciTech Connect

Current chemical CO2 scrubbing technology is primarily aqueous alkanolamine based. These systems rapidly bind CO2 (forming water-soluble carbamate and bicarbonate salts) however, the process has serious disadvantages. The concentration of monoethanolamine rarely exceeds 30 wt % due to the corrosive nature of the solution, and this reduces the maximum CO2 volumetric (?108 g/L) and gravimetric capacity (?7 wt%) of the CO2 scrubber. The ?30 wt % loading of ethanolamine also means that a large excess of water must be pumped and heated during CO2 capture and release, and this greatly increases the energy requirements especially considering the high specific heat of water (4 j/g-1K-1). Our approach is to switch to organic systems that chemically bind CO2 as liquid alkylcarbonate salts. Our CO2-binding organic liquids have higher CO2 solubility, lower specific heats, potential for less corrosion and lower binding energies for CO2 than aqueous systems. CO2BOLs also reversibly bind and release mixed sulfur oxides. Furthermore the CO2BOL system can be direct solvent replacements for any solvent based CO2 capture systems because they are commercially available reagents and because they are fluids they would not require extensive process re-engineering.

Heldebrant, David J.; Koech, Phillip K.; Rainbolt, James E.; Zheng, Feng

2010-11-10T23:59:59.000Z

100

Shock wave collisions in AdS5: approximate numerical solutions  

E-Print Network (OSTI)

We numerically study the evolution of a boost-invariant N=4 SYM medium using AdS/CFT. We consider a toy model for the collision of gravitational shock waves, finding that the energy density first increases, reaches a maximum and then starts to decrease, matching hydrodynamics for late times. For the initial conditions we consider, the hydrodynamic scale governing the late time behaviour is to very good approximation determined by the area of the black hole horizon at initial times. Our results provide a toy model for the early time evolution of the bulk system in heavy-ion collisions at RHIC and the LHC.

Bin Wu; Paul Romatschke

2011-08-18T23:59:59.000Z

Note: This page contains sample records for the topic "nato sym bol" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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101

Sensitive dependence of isotope and isobar distribution of limiting temperatures on symmetry energy  

E-Print Network (OSTI)

The mass, isotope and isobar distributions of limiting temperature for finite nuclei are investigated by thermodynamics approach with the Skyrme energy density functional. The calculations show there is an exact corresponding relationship between the width of isotope and isobar distribution of limiting temperatures and the stiffness of the density dependence of symmetry energy. The symmetry energy with smaller slope parameter $L_{\\rm{sym}}$ provides a wider distribution of limiting temperatures of nuclei in the isotope and isobar chain. Our studies show that the widths of isotope and isobar distribution of limiting temperatures are useful to obtain the information of the density dependence of the symmetry energy at finite temperature.

Li Ou; Min Liu; Zhuxia Li

2013-10-14T23:59:59.000Z

102

De la fixation de jauge consideree comme un des beaux arts et de la symetrie de Slavnov qui s'ensuit  

E-Print Network (OSTI)

La fixation de jauge est d\\'efinie comme l'op\\'eration permettant d'exprimer une int\\'egrale sur un espace d'orbite comme int\\'egrale sur le fibr\\'e principal correspondant. Quand la fibre est non compacte cette op\\'eration met en jeu une classe de cohomologie \\`a support compact -ou \\`a d\\'ecroissance rapide- de celle-ci. La sym\\'etrie de Slavnov est l'expression alg\\'ebrique de l'ambiguit\\'e de cette construction.

Raymond Stora

1996-11-15T23:59:59.000Z

103

A QUASAR CATALOG WITH SIMULTANEOUS UV, OPTICAL, AND X-RAY OBSERVATIONS BY SWIFT  

SciTech Connect

We have compiled a catalog of optically selected quasars with simultaneous observations in UV/optical and X-ray bands by the Swift Gamma-ray Burst Explorer. Objects in this catalog are identified by matching the Swift pointings with the Sloan Digital Sky Survey Data Release 5 quasar catalog. The final catalog contains 843 objects, among which 637 have both Ultraviolet Optical Telescope (UVOT) and X-Ray Telescope (XRT) observations and 354 of which are detected by both instruments. The overall X-ray detection rate is {approx}60% which rises to {approx}85% among sources with at least 10 ks of XRT exposure time. We construct the time-averaged spectral energy distribution (SED) for each of the 354 quasars using UVOT photometric measurements and XRT spectra. From model fits to these SEDs, we find that the big blue bump contributes about {approx}0.3 dex to the quasar luminosity. We re-visit the {alpha}{sub ox}-L{sub 2500A} relation by selecting a clean sample with only Type 1 radio-quiet quasars; the dispersion of this relation is reduced by at least 15% compared with studies that use non-simultaneous UV/optical and X-ray data. We only found a weak correlation between L{sub bol}/L{sub Edd} and {alpha}{sub UV}. We do not find significant correlations between {alpha}{sub x} and {alpha}{sub ox}, {alpha}{sub ox} and {alpha}{sub UV}, and {alpha}{sub x} and log L(0.3-10 keV). The correlations between {alpha}{sub UV} and {alpha}{sub x}, {alpha}{sub ox} and {alpha}{sub x}, {alpha}{sub ox} and {alpha}{sub UV}, L{sub bol}/L{sub Edd} and {alpha}{sub x}, and L{sub bol}/L{sub Edd} and {alpha}{sub ox} are stronger among low-redshift quasars, indicating that these correlations are likely driven by the changes of SED shape with accretion state.

Wu Jian; Grupe, Dirk; Koch, Scott; Gelbord, Jonathan; Schneider, Donald P.; Gronwall, Caryl; Porterfield, Blair L. [Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Lab, University Park, PA 16802 (United States); Vanden Berk, Daniel; Wesolowski, Sarah, E-mail: jwu@astro.psu.edu [Department of Physics, Saint Vincent College, 300 Fraser Purchase Road, Latrobe, PA 15650 (United States)

2012-08-01T23:59:59.000Z

104

Energy Emergency Energy Emergency Preparedness Quarterly Preparedness Quarterly  

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

3 J 3 J U L Y 1 5 , 2 0 1 2 U.S. DEPARTMENT OF ENERGY OE Hosts National Energy Assurance Conference Office of Electricity Delivery and Energy Reliability (OE) Infrastructure Security and Energy Restoration (ISER) Deputy Assistant Secretary ISER William N. Bryan Director Infrastructure Reliability ISER Stewart Cedres DOE Supports 2012 NATO Summit Visit us at: http://energy.gov/oe/services/energy-assurance/emergency-preparedness OE and the National Association of State Energy Officials (NASEO) hosted the 2012 National Energy Assurance Conference on June 28-29 at the Gaylord National Hotel in National Harbor, MD. The conference culminated the DOE/OE's ongoing American Recovery

105

Assessing the risk from the depleted uranium weapons used in Operation Allied Force  

E-Print Network (OSTI)

The conflict in Yugoslavia has been a source of great concern for the neighboring countries, about the radiological and toxic hazard posed by the alleged presence of depleted uranium in NATO weapons. In the present study a worst-case scenario is assumed mainly to assess the risk for Greece and other neighboring countries of Yugoslavia at similar distances . The risk of the weapons currently in use is proved to be negligible at distances greater than 100 Km. For shorter distances classified data of weapons composition are needed to obtain a reliable assessment.

Liolios, T E

1999-01-01T23:59:59.000Z

106

SPECIAL SESSION ON Decision Support Tools  

E-Print Network (OSTI)

This report was prepared under the auspices of the North Atlantic Treaty Organization s Committee on the Challenges of Modern Society (NATO/CCMS) as a service to the technical community by the United States Environmental Protection Agency (U.S. EPA). The report was funded by U.S. EPA s Technology Innovation Office. The report was produced by Environmental Management Support, Inc., of Silver Spring, Maryland, under U.S. EPA contract 68-W-00-084. Mention of trade names or specific applications does not imply endorsement or acceptance by U.S. EPA. i CONTENTS

Special Session Number; Groundwater (phase Iii; Of Contaminated L

2000-01-01T23:59:59.000Z

107

Methodologies used by Warsaw Pact countries (except USSR) in obtaining US technologies. Student report  

Science Conference Proceedings (OSTI)

The Warsaw Pact countries obtain U.S. technologies by legal and illegal means. Methods of collection include espionage, overt collection, acquisition by scientific and educational exchange participants, and illegal trade activities. Examples of methods used by the Warsaw Pact countries (except the USSR) are provided. The US faces barriers to preventing loss of its technologies. Among these are resistance from US business interests, insufficient cooperation between US government agencies and overseas allies, lack of US counterintelligence personnel, and the openess of American society. The study concludes that the Warsaw Pact's countries have narrowed NATO's qualitative lead in weaponry as a result of the Warsaw Pact's acquisition effort.

Cheeseman, R.J.

1987-04-01T23:59:59.000Z

108

Interview of Gareth Stedman Jones  

E-Print Network (OSTI)

to follow the edge of a crater that would be made if a bomb landed there; it was a period when nuclear war didn't seem inconceivable; I remember the committee being invited to SHAPE to hear the NATO case; I also got involved in the Labour Club alongside... , something that no academic institution would feel empowered to do these days; that sort of informality and trust is something that I've liked most about Cambridge; I think Cambridge is a strange place because its nearly all immigrants from one place...

Stedman Jones, Gareth

2012-01-01T23:59:59.000Z

109

Magnetic effects in heavy-ion collisions at intermediate energies  

E-Print Network (OSTI)

The time-evolution and space-distribution of internal electromagnetic fields in heavy-ion reactions at beam energies between 200 and 2000 MeV/nucleon are studied within an Isospin-dependent Boltzmann-Uhling-Uhlenbeck transport model IBUU11. While the magnetic field can reach about $7\\times 10^{16}$ G which is significantly higher than the estimated surface magnetic field ($\\sim 10^{15}$ G) of magnetars, it has almost no effect on nucleon observables as the Lorentz force is normally much weaker than the nuclear force. Very interestingly, however, the magnetic field generated by the projectile-like (target-like) spectator has a strong focusing/diverging effect on positive/negative pions at forward (backward) rapidities. Consequently, the differential $\\pi^-/\\pi^+$ ratio as a function of rapidity is significantly altered by the magnetic field while the total multiplicities of both positive and negative pions remain about the same. At beam energies above about 1 GeV/nucleon, while the integrated ratio of total $\\pi^-$ to $\\pi^+$ multiplicities is not, the differential $\\pi^-/\\pi^+$ ratio is sensitive to the density dependence of nuclear symmetry energy $E_{\\rm{sym}}(\\rho)$. Our findings suggest that magnetic effects should be carefully considered in future studies of using the differential $\\pi^-/\\pi^+$ ratio as a probe of the $E_{\\rm{sym}}(\\rho)$ at supra-saturation densities.

Li Ou; Bao-An Li

2011-07-16T23:59:59.000Z

110

Materials - Coatings & Lubricants - Illinois Center for Advanced Tribology  

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

Illinois Center for Advanced Tribology Illinois Center for Advanced Tribology ICAT brochure cover TRI - BOL*O*GY (N) -- the science and technology of friction, wear, and lubrication of interacting surfaces in relative motion. The Illinois Center for Advanced Tribology (ICAT) is a virtual center that brings together the skills and talents of multiple investigators and unique facilities from Argonne National Laboratory and three partnering universities to resolve critical friction, wear, and lubrication issues in biomedical implants, alternative energy technologies, and extreme environments. The Center's tribology experts work closely with industry, and with state and federal agencies through jointly funded research projects, to perform leading-edge research on the impact of materials, coatings, and fluids on

111

Trans-Atlantic Workshop on Rare Earth Elements and Other Critical Materials  

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

Trans-Atlantic Workshop on Rare Earth Elements and Other Critical Trans-Atlantic Workshop on Rare Earth Elements and Other Critical Materials for a Clean Energy Future Trans-Atlantic Workshop on Rare Earth Elements and Other Critical Materials for a Clean Energy Future December 3, 2010 Session A: Setting the Scene - Critical Materials for a Clean Energy Future Diana Bauer, Office of Policy and International Affairs, U.S. Department of Energy, Highlights of the DOE Critical Materials Strategy Antje Wittenberg, Directorate General for Enterprise and Industry, The EU Raw Materials Initiative and the Report of the Ad-hoc Group (tbc) Tom Lograsso, Ames Laboratory (Iowa State University), Future Directions in Rare Earth Research: Critical Materials for 21st Century Industry Derk Bol, Materials Innovation Institute M2i (Netherlands) M2i, Material

112

CONCURRENC RTG. SYMBOL GC-34 Ms. Mary Beth Brado  

Office of Legacy Management (LM)

MAY 2 9 1980 MAY 2 9 1980 CONCURRENC RTG. SYMBOL GC-34 Ms. Mary Beth Brado "*N'W Town of Lewiston * i..,! 1375 Ridge Road ^r'8 Lewiston, New York 14092 RTG.SYuBOL Dear Ms. Brado: .- ,l13. INirIA Lss iQ. W'Mott This is in response to your letter of January 29, 1980, and subsequent ..... ,. telephone discussions with irr. Brazley of my office, concerning land use 5/ /8 restrictions on the 1,511 acres declared surplus in the Towns of Lewiston RGSYMOL. and Porter, New York. In regard to your question of land use restriction and its application to the surplus land in the Lewiston area, our Office of General Counsel deter- DATE'- mined that the Department of Energy does not have the authority to restrict any land use or development of the property in question. Such authority nrTG SYMOL

113

CO2-Binding Organic Liquids, an Integrated Acid Gas Capture System  

SciTech Connect

Amine systems are effective for CO2 capture, but they are still inefficient because the solvent regeneration energy is largely defined by the amount of water in the process. Most amines form heat-stable salts with SO2 and COS resulting in parasitic solvent loss and degradation. Stripping the CO2-rich solvent is energy intensive it requires temperatures above 100 ?C due to the high specific heat and heat of vaporization of water. CO2-capture processes could be much more energy efficient in a water free amine process. In addition, if the capture-material is chemically compatible with other acid gases, less solvent would be lost to heat-stable salts and the process economics would be further improved. One such system that can address these concerns is Binding Organic Liquids (BOLs), a class of switchable ionic liquids.

Heldebrant, David J.; Koech, Phillip K.; Rainbolt, James E.; Zheng, Feng

2011-04-01T23:59:59.000Z

114

Effect of Graphitic Content on Carbon Supported Catalyst Performance  

DOE Green Energy (OSTI)

The effect of graphitic content on carbon supported platinum catalysts was investigated in order to investigate its influence on catalyst performance. Four catalysts of varying surface areas and graphitic content were analyzed using XPS, HREELS, and tested using RDE experiments. The catalysts were also heat treated at 150 C and 100%RH as means to uniformly age them. The heat treated samples were analyzed using the same methods to determine what changes had occurred due to this aging process. When compared to the BOL catalysts, heat treated catalysts displayed increased graphitic carbon and platinum metallic content, however they also showed depressed catalytic activity. The primary cause is still under investigation, though it is believed to be related to loss of amorphous carbon content.

A. Patel; K. Artyushkova; P. Atanassov; David Harvey; M. Dutta; V. Colbow; S. Wessel

2011-07-01T23:59:59.000Z

115

Spectral energy distribution for GJ406  

E-Print Network (OSTI)

We present results of modelling the bulk of the spectral energy distribution (0.35 - 5 micron) for GJ406 (M6V). Synthetic spectra were calculated using the NextGen, Dusty and Cond model atmospheres and incorporate line lists for H2O, TiO, CrH, FeH, CO, MgH molecules as well as the VALD line list of atomic lines. A comparison of synthetic and observed spectra gives Tef = 2800 +/- 100 K. We determine M$_bol = 12.13 +/- 0.10 for which evolutionary models by Baraffe et al. (2003) suggest an age of around 0.1 -- 0.35 Gyr consistent with its high activity. The age and luminosity of GJ406 correspond to a wide range of plausible masses (0.07 -- 0.1 Msun).

Pavlenko, Ya V; Lyubchik, Y; Tennyson, J; Pinfield, D J; Pavlenko, Ya. V.; Lyubchik, Yu.

2005-01-01T23:59:59.000Z

116

Spectral energy distribution for GJ406  

E-Print Network (OSTI)

We present results of modelling the bulk of the spectral energy distribution (0.35 - 5 micron) for GJ406 (M6V). Synthetic spectra were calculated using the NextGen, Dusty and Cond model atmospheres and incorporate line lists for H2O, TiO, CrH, FeH, CO, MgH molecules as well as the VALD line list of atomic lines. A comparison of synthetic and observed spectra gives Tef = 2800 +/- 100 K. We determine M$_bol = 12.13 +/- 0.10 for which evolutionary models by Baraffe et al. (2003) suggest an age of around 0.1 -- 0.35 Gyr consistent with its high activity. The age and luminosity of GJ406 correspond to a wide range of plausible masses (0.07 -- 0.1 Msun).

Ya. V. Pavlenko; H. R. A. Jones; Yu. Lyubchik; J. Tennyson; D. J. Pinfield

2005-10-19T23:59:59.000Z

117

Radiatively Inefficient Accretion in Nearby Galaxies  

E-Print Network (OSTI)

We use new central stellar velocity dispersions and nuclear X-ray and Halpha luminosities for the Palomar survey of nearby galaxies to investigate the distribution of nuclear bolometric luminosities and Eddington ratios for their central black holes (BHs). This information helps to constrain the nature of their accretion flows and the physical drivers that control the spectral diversity of nearby active galactic nuclei. The characteristic values of the bolometric luminosities and Eddington ratios, which span over 7-8 orders of magnitude, from L_bol transition objects --> LINERs --> Seyferts. The Eddington ratio also increases from early-type to late-type galaxies. We show that the very modest accretion rates inferred from the nuclear luminosities can be readily supplied through local mass loss from evolved stars and Bondi accretion of hot gas, without appealing to additional fueling mechanisms such as angular momentum transport on larger scales. Indeed, we argue that the fuel reservoir generated by local pro...

Ho, Luis C

2009-01-01T23:59:59.000Z

118

CANDIDATE X-RAY-EMITTING OB STARS IN THE CARINA NEBULA IDENTIFIED VIA INFRARED SPECTRAL ENERGY DISTRIBUTIONS  

Science Conference Proceedings (OSTI)

We report the results of a new survey of massive, OB stars throughout the Carina Nebula using the X-ray point source catalog provided by the Chandra Carina Complex Project (CCCP) in conjunction with infrared (IR) photometry from the Two Micron All-Sky Survey and the Spitzer Space Telescope Vela-Carina survey. Mid-IR photometry is relatively unaffected by extinction, hence it provides strong constraints on the luminosities of OB stars, assuming that their association with the Carina Nebula, and hence their distance, is confirmed. We fit model stellar atmospheres to the optical (UBV) and IR spectral energy distributions (SEDs) of 182 OB stars with known spectral types and measure the bolometric luminosity and extinction for each star. We find that the extinction law measured toward the OB stars has two components: A{sub V} = 1-1.5 mag produced by foreground dust with a ratio of total-to-selective absorption R{sub V} = 3.1 plus a contribution from local dust with R{sub V} > 4.0 in the Carina molecular clouds that increases as A{sub V} increases. Using X-ray emission as a strong indicator of association with Carina, we identify 94 candidate OB stars with L{sub bol} {approx}> 10{sup 4} L{sub sun} by fitting their IR SEDs. If the candidate OB stars are eventually confirmed by follow-up spectroscopic observations, the number of cataloged OB stars in the Carina Nebula will increase by {approx}50%. Correcting for incompleteness due to OB stars falling below the L{sub bol} cutoff or the CCCP detection limit, these results potentially double the size of the young massive stellar population.

Povich, Matthew S.; Townsley, Leisa K.; Broos, Patrick S.; Getman, Konstantin V. [Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Laboratory, University Park, PA 16802 (United States); Gagne, Marc [Department of Geology and Astronomy, West Chester University, West Chester, PA 19383 (United States); Babler, Brian L.; Meade, Marilyn R.; Townsend, Richard H. D. [Department of Astronomy, University of Wisconsin, 475 N. Charter Street, Madison, WI 53706 (United States); Indebetouw, Remy; Majewski, Steven R. [Department of Astronomy, University of Virginia, P.O. Box 400325, Charlottesville, VA 22904-4325 (United States); Robitaille, Thomas P., E-mail: povich@astro.psu.edu [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States)

2011-05-01T23:59:59.000Z

119

U-001:Symantec IM Manager Input Validation Flaws | Department of Energy  

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

U-001:Symantec IM Manager Input Validation Flaws U-001:Symantec IM Manager Input Validation Flaws U-001:Symantec IM Manager Input Validation Flaws October 3, 2011 - 12:45pm Addthis PROBLEM: Symantec IM Manager Input Validation Flaws Permit Cross-Site Scripting, SQL Injection, and Code Execution Attacks. PLATFORM: Version(s): prior to 8.4.18 ABSTRACT: Symantec IM Manager Input Validation Flaws Permit Cross-Site Scripting, SQL Injection, and Code Execution Attacks. reference LINKS: Security Advisory: SYM11-012 SecurityTracker Alert ID: 1026130 IMPACT ASSESSMENT: Medium Discussion: Several vulnerabilities were reported in Symantec IM Manager. A remote user can conduct cross-site scripting attacks. A remote user can inject SQL commands. Several scripts do not properly filter HTML code from user-supplied input before displaying the input [CVE-2011-0552]. A remote user can create a

120

Imprints of the nuclear symmetry energy on gravitational waves from the axial w-modes of neutron stars  

E-Print Network (OSTI)

The eigen-frequencies of the axial w-modes of oscillating neutron stars are studied using the continued fraction method with an Equation of State (EOS) partially constrained by the recent terrestrial nuclear laboratory data. It is shown that the density dependence of the nuclear symmetry energy $E_{sym}(\\rho)$ affects significantly both the frequencies and the damping times of these modes. Besides confirming the previously found universal behavior of the mass-scaled eigen-frequencies as functions of the compactness of neutron stars, we explored several alternative universal scaling functions. Moreover, the $w_{II}$-mode is found to exist only for neutron stars having a compactness of $M/R\\geq 0.1078$ independent of the EOS used.

De-Hua Wen; Bao-An Li; Plamen G. Krastev

2009-02-26T23:59:59.000Z

Note: This page contains sample records for the topic "nato sym bol" 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

DOE-HDBK-1016/1-93; DOE Fundamentals Handbook Engineering Symbology, Prints, and Drawings Volume 1 of 2  

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

016/1-93 016/1-93 JANUARY 1993 DOE FUNDAMENTALS HANDBOOK ENGINEERING SYMBOLOGY, PRINTS, AND DRAWINGS Volume 1 of 2 U.S. Department of Energy FSC-6910 Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. This document has been reproduced directly from the best available copy. Available to DOE and DOE contractors from the Office of Scientific and Technical Information, P.O. Box 62, Oak Ridge, TN37831. Available to the public from the National Technical Information Service, U.S. Department of Commerce, 5285 Port Royal Rd., Springfield, VA 22161. Order No. DE93012220 DOE-HDBK-1016/1-93 ENGINEERING SYMBOLOGY, PRINTS, AND DRAWINGS ABSTRACT The Engineering Sym bology, Prints, and Drawings Handbook was developed to assist nuclear facility operating contractors in providing operators, maintenance personnel, and

122

U-008: Symantec Data Loss Prevention Bugs in KeyView Filter Lets Remote  

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

08: Symantec Data Loss Prevention Bugs in KeyView Filter Lets 08: Symantec Data Loss Prevention Bugs in KeyView Filter Lets Remote Users Deny Service U-008: Symantec Data Loss Prevention Bugs in KeyView Filter Lets Remote Users Deny Service October 11, 2011 - 8:00am Addthis PROBLEM: Symantec Data Loss Prevention Bugs in KeyView Filter Lets Remote Users Deny Service PLATFORM: Symantec Data Loss Prevention Enforce/Detection Servers for Windows 10.x, 11.x ABSTRACT: A remote user can create a file that, when processed by the target filter, will cause partial denial of service conditions. reference LINKS: Symantec Security Advisory SYM11-013 SecurityTracker Alert ID: 1026157 IMPACT ASSESSMENT: Medium Discussion: Multiple vulnerabilities were reported in Symantec Data Loss Prevention. A remote user can cause denial of service conditions on the target system.A

123

WOCESSORS MOD DISTRIBUTORS OF REFIBED SOURCB MATWIAL  

Office of Legacy Management (LM)

WOCESSORS MOD DISTRIBUTORS OF REFIBED SOURCB MATWIAL WOCESSORS MOD DISTRIBUTORS OF REFIBED SOURCB MATWIAL REFZR m SYmOL1 LILCB .' .. .",I:, ' ,,:r:~' ., " " In aooordame with our telephone oonvorsation of-this date, there is transmitted herewith for 'your um a few of the prooessora and distributors of' refined source material. i. PRocESSoRS~ DISTRIBUTOBS CJI-'GB&& Chemical Co. Pbilliprrburg, Uew Jersey Haywood Chemloal Uorke "' Maymod, bw Jermy City Chesical Company 132 Ploet Z2nd Street Uw York, Ber York Eiimr &Am& ' 6S6 Oreennioh Street Hen York 10, Hew York 5. W. Sbattuok Chemloal Co. Amend Drug d Chsmioal 1806 South Sameok Street 117 East 24th Street Denver 10, Colorado , Hew York, Hew Pork Lindsay Ught b Chemical Co. bat Chicago, Illinoir A.D.MackayCompany

124

SLAC-PUB-3659  

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

SLAC-PUB-3659 DE85 013052 FORTY-FIVE YEARS OF e+e" ANNIHILATION PHYSICS: 1956 to 2001* B U R T O N R I C H T E R Stanford Linear Accelerator Center Stanford University, Stanford, California, 94S05 ABSTRACT Electron-positron physics is an appropriate subject to talk about at this sym- posium dedicated to W. K. H. Panofsky because the development of e+e" physics with storage rings has been intimately connected with laboratories that Pief has headed - the High Energy Physics laboratory at Stanford that he directed until 1962, and SLAC which he has directed since then. But talking only about the past gives no scope for the imagination and since I like to speculate, I will take on the task in this talk of describing not only what has been, but of what will be.

125

V-117: Symantec Enterprise Vault for File System Archiving Unquoted Search  

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

7: Symantec Enterprise Vault for File System Archiving Unquoted 7: Symantec Enterprise Vault for File System Archiving Unquoted Search Path Lets Local Users Gain Elevated Privileges V-117: Symantec Enterprise Vault for File System Archiving Unquoted Search Path Lets Local Users Gain Elevated Privileges March 22, 2013 - 6:00am Addthis PROBLEM: A vulnerability was reported in Symantec Enterprise Vault PLATFORM: Versions prior to Enterprise Vault 9.0.4 and 10.0.1 are vulnerable. ABSTRACT: Symantec Enterprise Vault (EV) for File System Archiving has an unquoted search path in the File Collector and File PlaceHolder services REFERENCE LINKS: SecurityTracker Alert ID: 1028330 Symantec Security Advisories SYM13-003 SecurityFocus ID: 58617 CVE-2013-1609 IMPACT ASSESSMENT: Medium DISCUSSION: This could potentially allow an authorized but non-privileged local user to

126

V-093: Symantec PGP Desktop Buffer Overflows Let Local Users Gain Elevated  

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

3: Symantec PGP Desktop Buffer Overflows Let Local Users Gain 3: Symantec PGP Desktop Buffer Overflows Let Local Users Gain Elevated Privileges V-093: Symantec PGP Desktop Buffer Overflows Let Local Users Gain Elevated Privileges February 18, 2013 - 12:53am Addthis PROBLEM: Symantec PGP Desktop Buffer Overflows Let Local Users Gain Elevated Privileges PLATFORM: Symantec PGP Desktop 10.2.x,10.1.x,10.0.x Symantec Encryption Desktop 10.3.0 ABSTRACT: Two vulnerabilities were reported in Symantec PGP Desktop. REFERENCE LINKS: Symantec Security Advisory SYM13-001 Bugtraq ID: 57170 SecurityTracker Alert ID: 1028145 CVE-2012-4351 CVE-2012-4352 IMPACT ASSESSMENT: Medium DISCUSSION: A local user can trigger an integer overflow in 'pgpwded.sys' to execute arbitrary code on the target system [CVE-2012-4351]. On Windows XP and Windows Sever 2003, a local user can trigger a buffer

127

T-731:Symantec IM Manager Code Injection Vulnerability | Department of  

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

T-731:Symantec IM Manager Code Injection Vulnerability T-731:Symantec IM Manager Code Injection Vulnerability T-731:Symantec IM Manager Code Injection Vulnerability September 30, 2011 - 8:30am Addthis PROBLEM: Symantec IM Manager Code Injection Vulnerability. PLATFORM: IM Manager versions prior to 8.4.18 are affected. ABSTRACT: Symantec IM Manager is prone to a vulnerability that will let attackers run arbitrary code. referecnce LINKS: Symantec Security Advisory SYM11-012 Symantec Security Updates Bugtraq ID: 49742 IMPACT ASSESSMENT: High Discussion: Symantec was notified of Cross-Site Scripting and Code injection/execution issues present in the Symantec IM Manager management console. The management console fails to properly filter/validate external inputs. Successful exploitation of SQL Injection or Remote Code execution might

128

V-182: Symantec Endpoint Protection Manager Buffer Overflow Vulnerability |  

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

2: Symantec Endpoint Protection Manager Buffer Overflow 2: Symantec Endpoint Protection Manager Buffer Overflow Vulnerability V-182: Symantec Endpoint Protection Manager Buffer Overflow Vulnerability June 20, 2013 - 6:00am Addthis PROBLEM: A vulnerability has been reported in Symantec Endpoint Protection Manager PLATFORM: The vulnerability is reported in versions 12.1.x prior to 12.1 RU3 ABSTRACT: Symantec was notified of a pre-authentication buffer overflow found in the Symantec Endpoint Protection Manager (SEPM) and Symantec Endpoint Protection Center (SPC) REFERENCE LINKS: Secunia Advisory SA53864 SecurityTracker Alert ID: 1028683 Symantec Adivsory SYM13-005 CVE-2013-1612 IMPACT ASSESSMENT: Medium DISCUSSION: The vulnerability is caused due to a boundary error within secars.dll and can be exploited to cause a buffer overflow via the web-based management

129

DOE-HDBK-1016/2-93; DOE Fundamentals Handbook Engineering Symbology, Prints, and Drawings Volume 2 of 2  

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

6/2-93 6/2-93 JANUARY 1993 DOE FUNDAMENTALS HANDBOOK ENGINEERING SYMBOLOGY, PRINTS, AND DRAWINGS Volume 2 of 2 U.S. Department of Energy FSC-6910 Washington, D.C. 20585 Distribution Statement A. Approved for public release; distribution is unlimited. This document has been reproduced directly from the best available copy. Available to DOE and DOE contractors from the Office of Scientific and Technical Information, P.O. Box 62, Oak Ridge, TN 37831. Available to the public from the National Technical Information Services, U.S. Department of Commerce, 5285 Port Royal., Springfield, VA 22161. Order No. DE93012181 DOE-HDBK-1016/2-93 ENGINEERING SYMBOLOGY, PRINTS, AND DRAWINGS ABSTRACT The Engineering Sym bology, Prints, and Drawings Handbook was developed to assist nuclear facility operating contractors in providing operators, maintenance personnel, and technical

130

V-182: Symantec Endpoint Protection Manager Buffer Overflow Vulnerability |  

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

82: Symantec Endpoint Protection Manager Buffer Overflow 82: Symantec Endpoint Protection Manager Buffer Overflow Vulnerability V-182: Symantec Endpoint Protection Manager Buffer Overflow Vulnerability June 20, 2013 - 6:00am Addthis PROBLEM: A vulnerability has been reported in Symantec Endpoint Protection Manager PLATFORM: The vulnerability is reported in versions 12.1.x prior to 12.1 RU3 ABSTRACT: Symantec was notified of a pre-authentication buffer overflow found in the Symantec Endpoint Protection Manager (SEPM) and Symantec Endpoint Protection Center (SPC) REFERENCE LINKS: Secunia Advisory SA53864 SecurityTracker Alert ID: 1028683 Symantec Adivsory SYM13-005 CVE-2013-1612 IMPACT ASSESSMENT: Medium DISCUSSION: The vulnerability is caused due to a boundary error within secars.dll and can be exploited to cause a buffer overflow via the web-based management

131

V-192: Symantec Security Information Manager Input Validation Flaws Permit  

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

92: Symantec Security Information Manager Input Validation Flaws 92: Symantec Security Information Manager Input Validation Flaws Permit Cross-Site Scripting, SQL Injection, and Information Disclosure Attacks V-192: Symantec Security Information Manager Input Validation Flaws Permit Cross-Site Scripting, SQL Injection, and Information Disclosure Attacks July 4, 2013 - 6:00am Addthis PROBLEM: Several vulnerabilities were reported in Symantec Security Information Manager PLATFORM: Symantec Security Information Manager Appliance Version 4.7.x and 4.8.0 ABSTRACT: Symantec was notified of multiple security issues impacting the SSIM management console REFERENCE LINKS: SecurityTracker Alert ID: 1028727 Symantec Security Advisory SYM13-006 CVE-2013-1613 CVE-2013-1614 CVE-2013-1615 IMPACT ASSESSMENT: Medium DISCUSSION: The console does not properly filter HTML code from user-supplied input

132

On the Relationship between the Rozansky-Witten and the 3-Dimensional Seiberg-Witten Invariants  

E-Print Network (OSTI)

The Seiberg-Witten analysis of the low-energy effective action of d=4 N=2 SYM theories reveals the relation between the Donaldson and Seiberg-Witten (SW) monopole invariants. Here we apply analogous reasoning to d=3 N=4 theories and propose a general relationship between Rozansky-Witten (RW) and 3-dimensional Abelian monopole invariants. In particular, we deduce the equality of the SU(2) Casson invariant and the 3-dimensional SW invariant (this includes a special case of the Meng-Taubes theorem relating the SW invariant to Milnor torsion). Since there are only a finite number of basic RW invariants of a given degree, many different topological field theories can be used to represent essentially the same topological invariant. This leads us to advocate using higher rank Abelian gauge theories to shed light on the higher (non-Abelian) RW invariants and we write down candidate higher rank SW equations.

Matthias Blau; George Thompson

2000-06-30T23:59:59.000Z

133

Development of a Low-Cost, Durable Membrane and MEA for Stationary and Mobile Fuel Cell Applications  

DOE Green Energy (OSTI)

The development of low cost, durable membranes and membranes electrode assemblies (MEAs) remain a critical challenge for the successful introduction of fuel cells into mass markets. It was the goal of the team lead by Arkema, Inc. (formerly Atofina, Inc.) to address these shortages. Thus, this project addresses the following technical barriers from the Fuel Cells section of the Hydrogen Fuel Cells and Infrastructure Technologies Program Multi-Year Research, Development and Demonstration Plan: (A) Durability (B) Cost Arkemas approach consisted in using blends of polyvinylidenefluoride (PVDF) and proprietary sulfonated polyelectrolytes. The strength and originality of Arkemas approach lies in the decoupling of ion conductivity from the other requirements. Kynar (Arkema trade name for PVDF) provides an exceptional combination of properties that make it ideally suited for a membrane matrix. In a first phase, Arkema demonstrated the feasibility of the concept with the M31 membrane generation. After MEA optimization, it was shown that the beginning-of-life (BOL) performance of M31 MEAs was essentially on a par with that of PFSA MEAs at 60C under fully humidified conditions. On the other hand, long-term durability studies showed a high decay rate of 45V/h over a 2100 hr. test. Arkema then designed several families of polyelectrolyte candidates, which in principle could not undergo the same failure mechanisms. A new membrane candidate was developed: M41. It offered the same generally good mechanical, ex-situ conductivity and gas barrier properties as M31. In addition, ex-situ accelerated testing suggested a several orders of magnitude improvement in chemical stability. M41 based MEAs showed comparable BOL performance with that of PFSA (80C, 100% RH). M41 MEAs were further shown to be able to withstand several hours temperature excursions at 120C without apparent damage. Accelerated studies were carried out using the DOE and/or US Fuel Cell Council protocols. M41 MEAs shown sizeable advantages over PFSA MEAs in the Open Circuit Voltage Hold test, Relative Humidity Cycling test and the Voltage Cycling test. The main known limitation of the M41 family is its ability to function well at low RH.

Michel Foure, Scott Gaboury, Jim Goldbach, David Mountz and Jung Yi (no longer with company)

2008-01-31T23:59:59.000Z

134

JOHN B. KERR  

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

B. KERR B. KERR Lawrence Berkeley National Laboratory MS 62R0203, 1 Cyclotron Road, Berkeley, CA 94720 (510)-486-6279 FAX: (510)-486-4995 e-mail: jbkerr@lbl.gov Web Page: http://energy.lbl.gov/aet/kerr/ EDUCATION. * Ph.D. University of Edinburgh , Scotland, 1978. Thesis Title, "Electrochemical Reduction of some Unsaturated Organic Chemicals." Advisor A.J. Bellamy. * Recipient of a NATO Studentship at the University of Aarhus, Denmark with P.E. Iversen and H. Lund, 1975-76 and at the Universite de Dijon, France with C. Degrand and E. Laviron,, 1976. * B.Sc.,Honours, 1st Class in Chemistry , University of Edinburgh , Scotland, 1974. * January 1978 - July 1979. Research Associate at the Department of Chemistry, University of Minnesota, Minneapolis with L.L. Miller. i) polymer coated electrodes

135

Assessing the risk from the depleted Uranium weapons used in Operation Allied Force.  

E-Print Network (OSTI)

The conflict in Yugoslavia has been a source of great concern due to the radiological and toxic hazard posed by the alleged presence of depleted uranium in NATO weapons. In the present study some worst-case scenaria are assumed in order to assess the risk for Yugoslavia and its neighboring countries. The risk is proved to be negligible for the neighboring countries while for Yugoslavia itself evidence is given that any increase in total long-term cancer mortality will be so low that it will remain undetected. Local radioactive hotspots such as DU weapons fragments and abandoned battle tanks, fortified or contaminated with DU, constitute a post-war hazard which is not studied in this article.

unknown authors

1999-01-01T23:59:59.000Z

136

Assessing the risk from the depleted uranium weapons used in Operation Allied Force.  

E-Print Network (OSTI)

The conflict in Yugoslavia has been a source of great concern for the neighboring countries, about the radiological and toxic hazard posed by the alleged presence of depleted uranium in NATO weapons. In the present study a worst-case scenario is assumed mainly to assess the risk for Greece and other neighboring countries of Yugoslavia at similar distances. The risk of the weapons currently in use is proved to be negligible at distances greater than 100 Km. For shorter distances classified data of weapons composition are needed to obtain a reliable assessment. Operation Allied Force (OAF) has been going on for weeks in Yugoslavia with grave environmental consequences in the neighboring countries. Unfortunately, the sophisticated weapons that are being used carry the spectrum of radiological contamination. Over the past decades there has been a tremendous effort in weapons laboratories to use depleted uranium

unknown authors

1999-01-01T23:59:59.000Z

137

Proceedings  

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

*-+ *-+ 3 Proceedings 'of the NATO A S 1 "Physics and Engineering of Medical Imaging" s i BNL--36938 DE85 017854 DISTRIBUTED MICROPROCESSOR AUTOMATION NETWORK FOR SYNTHESIZING RADIOTRACERS USED IN POSITRON EMISSION TOMOGRAPHY Jerome A. G. Russell, David L . Alexoff and Alfred P. Wolf Chemistry Department, Brookhaven National Laboratory, Upton, NY INTRODUCTION This presentation describes the engineering concepts under- lying an evolving distributed microprocessor network for auto- mating the routine production synthesis of radiotracers used in Positron Emission Tomography brain studies at the Chemistry Department of the Brookhaven National Laboratory in New York. As an introduction to the distributed system, we will first present a brief overview of the PET method for measuring biological func-

138

ANL Activities  

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

Activities of the DOD Activities of the DOD Project Office focus today on the Navy's Free Electron Laser Program Argonne Accelerator Institute Meeting June 16, 2009 2 Several Beam Activities and Interests Ongoing  Terahertz sources and applications  Navy Free Electron Laser (Focus area today)  Free Electron Laser Applications  Electromagnetic Interference Technology Review Committees  Novel Fiber Optic Materials with Army Research Lab  Optical Diagnostics for next-generation light sources  Neutron detection schemes  NATO Sensors and Electronics Panel, international field tests of directed energy source applications  Controls  Radiation Oncology 3 Background, Naval Directed Energy History The U.S Navy has been investigating utility of lasers since the 1960's and the

139

The Cooperative Engagement Capability  

E-Print Network (OSTI)

picture as well as the ability to engage targets that may not be seen locally, a new level of capability may be attained. This ability is precisely what the Cooperative Engagement Capability (CEC) provides for a network of combatants. Recent tests demonstrated that from older, short-range systems such as NATO Sea Sparrow through the latest Aegis baselines, CEC can provide greater defensive capabilities and even provide new types of capabilities to a battle force. However, CEC does not obviate the need for advances in sensors, fire control, and interceptors. Rather, CEC allows the INTRODUCTION Operation in the littoral theater is a principal Navy 1990s scenario with complexities never considered in the Cold War era. For theater air defense, the complexities include the natural environment and its effects on sensor range. For example, desensitization by clutter from propagation ducting and rough terrain, as well as blockage by coastal mountains and clif

Apl

1995-01-01T23:59:59.000Z

140

Factors Affecting the Feasibility of a Warsaw Pact Invasion of Western Europe  

E-Print Network (OSTI)

The end of the Cold War and the opening of selected archives in both Eastern and Western Europe provides scholars the opportunity to study this period with greater accuracy and detail than was previously possible. This study seeks to determine the feasibility of a Warsaw Pact invasion of Western Europe in 1987 through the examination of the factors that would have affected such an operation. After each of these factors have been analyzed then conclusions will be drawn about the probable course and termination of such a conflict in Central Europe. The argument will be made that NATO would have been able to hold onto most of West Germany in the event of such an attack.

Williamson, Corbin

2008-05-16T23:59:59.000Z

Note: This page contains sample records for the topic "nato sym bol" from the National Library of EnergyBeta (NLEBeta).
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141

DOE Hydrogen and Fuel Cells Program Record 5036a: Backup Reference for Fuel Cell Stack Durability  

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

Hydrogen and Fuel Cells Program Record Hydrogen and Fuel Cells Program Record Record #: 5036a Date: April 20, 2006 Title: Backup Reference - Fuel Cell Stack Durability - DOE Only Originator: Valri Lightner Approved by: Date: 2004 Cyclic Durability Status 2,800 h of cyclic durability achieved with less than 10% performance loss (at 600 mA/cm 2 ). [Medium acceleration]. 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0 100 200 300 400 500 600 700 800 900 1000 Current density (mA/cm2) Avg. Voltage (v) 1 Million Cycles BOL t=0 t=3000h 2005 Cyclic Durability Status 4,000 h of cyclic durability achieved with less than 10% performance loss (at 600 mA/cm 2 ). [High acceleration]. 0.000 0.100 0.200 0.300 0.400 0.500 0.600 0.700 0.800 0.900 1.000 0 100 200 300 400 500 600 700 800 900 1000 1100 Current density (mA/cm2) Avg. Voltage

142

CLASSICAL NOVAE IN ANDROMEDA: LIGHT CURVES FROM THE PALOMAR TRANSIENT FACTORY AND GALEX  

Science Conference Proceedings (OSTI)

We present optical light curves of 29 novae in M31 during the 2009 and 2010 observing seasons of the Palomar Transient Factory (PTF). The dynamic and rapid cadences in PTF monitoring of M31, from one day to ten minutes, provide excellent temporal coverage of nova light curves, enabling us to record the photometric evolution of M31 novae in unprecedented detail. We also detect eight of these novae in the near-ultraviolet (UV) band with the Galaxy Evolution Explorer (GALEX) satellite. Novae M31N 2009-10b and M31N 2010-11a show prominent UV emission peaking a few days prior to their optical maxima, possibly implying aspherical outbursts. Additionally, our blueshifted spectrum of the recent outburst of PT And (M31N 2010-12a) indicates that it is a recurrent nova in M31 and not a dwarf nova in the Milky Way as was previously assumed. Finally, we systematically searched for novae in all confirmed globular clusters (GCs) of M31 and found only M31N 2010-10f associated with Bol 126. The specific nova rate in the M31 GC system is thus about one per year, which is not enhanced relative to the rate outside the GC system.

Cao Yi; Lou Yuqing [Tsinghua Center for Astrophysics (THCA), Department of Physics, Tsinghua University, Beijing 100084 (China); Kasliwal, Mansi M.; Neill, James D.; Kulkarni, S. R.; Quimby, Robert M. [Astronomy Department, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125 (United States); Ben-Ami, Sagi [Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot 76100 (Israel); Bloom, Joshua S.; Cenko, S. Bradley; Nugent, Peter E. [Department of Astronomy, University of California, Berkeley, CA 94720-3411 (United States); Law, Nicholas M. [Dunlap Institute for Astronomy and Astrophysics, University of Toronto, 50 St. George Street, Toronto, M5S 3H4 Ontario (Canada); Ofek, Eran O. [Benoziyo Center for Astrophysics, Faculty of Physics, Weizmann Institute of Science, Rehovot 76100 (Israel); Poznanski, Dovi, E-mail: ycao@astro.caltech.edu [School of Physics and Astronomy, Tel-Aviv University, Tel Aviv 69978 (Israel)

2012-06-20T23:59:59.000Z

143

ASCA Observation of an X-Ray-Luminous Active Nucleus in Markarian 231  

E-Print Network (OSTI)

We have obtained a moderately long (100 kilosecond) ASCA observation of the Seyfert 1 galaxy Markarian 231, the most luminous of the local ultraluminous infrared galaxy (ULIRG) population. In the best-fitting model we do not see the X-ray source directly; the spectrum consists of a scattered power-law component and a reflection component, both of which have been absorbed by a column N_H \\approx 3 X 10^(22)/cm^2. About 3/4 of the observed hard X-rays arise from the scattered component, reducing the equivalent width of the iron K alpha line. The implied ratio of 1-10 keV X-ray luminosity to bolometric luminosity, L_x/L_bol \\sim 2%, is typical of Sy 1 galaxies and radio-quiet QSOs of comparable bolometric luminosities, and indicates that the bolometric luminosity is dominated by the AGN. Our estimate of the X-ray luminosity also moves Mrk 231 in line with the correlations found for AGN with extremely strong Fe II emission. A second source separated by about 2 arcminutes is also clearly detected, and contributes ...

Maloney, P R; Maloney, Philip R.; Reynolds, Christopher S

2000-01-01T23:59:59.000Z

144

PKS 1018-42: A Powerful Kinetically Dominated Quasar  

E-Print Network (OSTI)

We have identified PKS 1018-42 as a radio galaxy with extraordinarily powerful jets, over twice as powerful as any 3CR source of equal or lesser redshift except for one (3C196). It is perhaps the most intrinsically powerful extragalactic radio source in the, still poorly explored, Southern Hemisphere. PKS 1018-42 belongs to the class of FR II objects that are kinetically dominated, the jet kinetic luminosity, $Q \\sim 6.5 \\times 10^{46}\\mathrm{ergs/s}$ (calculated at 151 MHz), is 3.4 times larger than the total thermal luminosity (IR to X-ray) of the accretion flow, $L_{bol} \\sim 1.9 \\times 10^{46}\\mathrm{ergs/s}$. It is the fourth most kinetically dominated quasar that we could verify from existing radio data. From a review of the literature, we find that kinetically dominated sources such as PKS 1018-42 are rare, and list the 5 most kinetically dominated sources found from our review. Our results for PKS 1018-42 are based on new observations from the Australia Telescope Compact Array.

Brian Punsly; Steven Tingay

2006-02-13T23:59:59.000Z

145

1-MeV-Electron Irradiation of GaInAsN Cells: Preprint  

DOE Green Energy (OSTI)

This conference paper describes the GaInAsN cells that are measured to retain 933% and 894% of their original efficiency after exposure to 5 X 1014 and 1 X 1015 cm-2 1-MeV electrons, respectively. The rate of degradation is not correlated with the performance at beginning of life (BOL). The depletion width remains essentially unchanged, increasing by< 1%. Temperature-coefficient data for GaInAsN cells are also presented. These numbers are used to project the efficiency of GaInAsN-containing multijunction cells. The GaInAsN junction is not currently predicted to increase the efficiencies of the multijunction cells. Nevertheless, GaInAsN-containing multijunction cell efficiencies are predicted to be comparable to those of the conventional structures, and even small improvements in the GaInAsN cell may lead to higher multijunction cell efficiencies, especially for high-radiation applications and when cell operating temperature is low.

Kurtz, S.; King, R. R.; Edmondson, K. M.; Friedman, D. J.; Karam, N. H.

2002-05-01T23:59:59.000Z

146

A Simple test for the existence of two accretion modes in active galactic nuclei  

Science Conference Proceedings (OSTI)

By analogy to the different accretion states observed in black-hole X-ray binaries (BHXBs), it appears plausible that accretion disks in active galactic nuclei (AGN) undergo a state transition between a radiatively efficient and inefficient accretion flow. If the radiative efficiency changes at some critical accretion rate, there will be a change in the distribution of black hole masses and bolometric luminosities at the corresponding transition luminosity. To test this prediction, the author considers the joint distribution of AGN black hole masses and bolometric luminosities for a sample taken from the literature. The small number of objects with low Eddington-scaled accretion rates m < 0.01 and black hole masses M{sub BH} < 10{sup 9} M{sub {circle_dot}} constitutes tentative evidence for the existence of such a transition in AGN. Selection effects, in particular those associated with flux-limited samples, systematically exclude objects in particular regions of the (M{sub BH}, L{sub bol}) plane. Therefore, they require particular attention in the analysis of distributions of black hole mass, bolometric luminosity, and derived quantities like the accretion rate. The author suggests further observational tests of the BHXB-AGN unification scheme which are based on the jet domination of the energy output of BHXBs in the hard state, and on the possible equivalence of BHXB in the very high (or steep power-law) state showing ejections and efficiently accreting quasars and radio galaxies with powerful radio jets.

Jester, Sebastian; /Fermilab

2005-02-01T23:59:59.000Z

147

Reversible zwitterionic liquids, the reaction of alkanol guanidines, alkanol amidines, and diamines with CO2  

Science Conference Proceedings (OSTI)

Carbon dioxide chemistry is increasingly relevant to real-world issues, thanks to global warming. Key chemistry issues currently being studied are the capture, storage, and utilization of CO2. While the relevance of capture and storage are obvious, the relevance of CO2 utilization is less clear. Although CO2 utilization is unlikely to consume significant quantities of CO2, it can be an significant strategy for the development of sustainable processes. As part of our research efforts towards CO2 utilization, some of us invented switchable solvents, meaning solvents that can switch reversibly from one version to another.1Our original version was a mixture of an amidine and an alcohol (equation 1, where B is a liquid amidine), but since then we and others have developed others such as guanidine/alcohol mixtures (equation 1, where B is a liquid guanidine),2 amidine/primary amine mixtures,3 and secondary amines (equation 2).4Switchable solvents of these types all convert from a low-polarity to a high-polarity ionic liquid form upon exposure to an atmosphere of CO2 and revert back to the low polarity form when the CO2 is removed by heat or flushing with inert gas. We also demonstrated that these switchable solvents can be used as reversible CO2-binding organic liquids (CO2BOLs) for CO2 capture, and are more energy-efficient in that role than aqueous solutions of ethanolamine.

Heldebrant, David J.; Koech, Phillip K.; Ang, Trisha; Liang, Chen; Rainbolt, James E.; Yonker, Clement R.; Jessop, Philip G.

2010-04-01T23:59:59.000Z

148

Infrared Properties of z=7 Galaxies from Cosmological Simulations  

E-Print Network (OSTI)

Three-dimensional panchromatic dust radiative transfer calculations are performed on a set of 198 galaxies of stellar masses in the range 5x10^8-3x10^10 Msun from a cosmological hydrodynamic simulation (resolved at 29pc/h) at z=7. In a companion paper (Kimm & Cen), the stellar mass and UV luminosity functions, and UV-optical and FUV-NUV colors are shown to be in good agreement with observations, if an SMC-type dust extinction curve is adopted. Here we make useful predictions, self-consistently, of the infrared properties of these z=7 simulated galaxies that can be confronted with upcoming ALMA data. Our findings are as follows. (1) The effective radius in the rest-frame MIPS 70 micron band is in the range of 80-400pc proper for z=7 galaxies with L_FIR=10^{11.3-12}Lsun. (2) The median of the peak wavelength of the far-infrared (FIR) spectral energy distribution is in the range of 45-60 micron, depending on the dust-to-metal ratio. (3) For star formation rate in the range 3-100 Msun/yr the median FIR to bol...

Cen, Renyue

2013-01-01T23:59:59.000Z

149

RELAP5 model of the high flux isotope reactor with low enriched fuel thermal flux profiles  

Science Conference Proceedings (OSTI)

The High Flux Isotope Reactor (HFIR) currently uses highly enriched uranium (HEU) fabricated into involute-shaped fuel plates. It is desired that HFIR be able to use low enriched uranium (LEU) fuel while preserving the current performance capability for its diverse missions in material irradiation studies, isotope production, and the use of neutron beam lines for basic research. Preliminary neutronics and depletion simulations of HFIR with LEU fuel have arrived to feasible fuel loadings that maintain the neutronics performance of the reactor. This article illustrates preliminary models developed for the analysis of the thermal-hydraulic characteristics of the LEU core to ensure safe operation of the reactor. The beginning of life (BOL) LEU thermal flux profile has been modeled in RELAP5 to facilitate steady state simulation of the core cooling, and of anticipated and unanticipated transients. Steady state results are presented to validate the new thermal power profile inputs. A power ramp, slow depressurization at the outlet, and flow coast down transients are also evaluated. (authors)

Banfield, J.; Mervin, B.; Hart, S.; Ritchie, J.; Walker, S.; Ruggles, A.; Maldonado, G. I. [Dept. of Nuclear Engineering, Univ. of Tennessee Knoxville, Knoxville, TN 37996-2300 (United States)

2012-07-01T23:59:59.000Z

150

Recovery Act: Web-based CO{sub 2} Subsurface Modeling  

Science Conference Proceedings (OSTI)

The Web-based CO{sub 2} Subsurface Modeling project focused primarily on extending an existing text-only, command-line driven, isothermal and isobaric, geochemical reaction-transport simulation code, developed and donated by Sienna Geodynamics, into an easier-to-use Web-based application for simulating long-term storage of CO{sub 2} in geologic reservoirs. The Web-based interface developed through this project, publically accessible via URL http://symc.sdsu.edu/, enables rapid prototyping of CO{sub 2} injection scenarios and allows students without advanced knowledge of geochemistry to setup a typical sequestration scenario, invoke a simulation, analyze results, and then vary one or more problem parameters and quickly re-run a simulation to answer what-if questions. symc.sdsu.edu has 2x12 core AMD Opteron 6174 2.20GHz processors and 16GB RAM. The Web-based application was used to develop a new computational science course at San Diego State University, COMP 670: Numerical Simulation of CO{sub 2} Sequestration, which was taught during the fall semester of 2012. The purpose of the class was to introduce graduate students to Carbon Capture, Use and Storage (CCUS) through numerical modeling and simulation, and to teach students how to interpret simulation results to make predictions about long-term CO{sub 2} storage capacity in deep brine reservoirs. In addition to the training and education component of the project, significant software development efforts took place. Two computational science doctoral and one geological science masters student, under the direction of the PIs, extended the original code developed by Sienna Geodynamics, named Sym.8. New capabilities were added to Sym.8 to simulate non-isothermal and non-isobaric flows of charged aqueous solutes in porous media, in addition to incorporating HPC support into the code for execution on many-core XSEDE clusters. A successful outcome of this project was the funding and training of three new computational science students and one geological science student in technologies relevant to carbon sequestration and problems involving flow in subsurface media. The three computational science students are currently finishing their doctorial studies on different aspects of modeling CO{sub 2} sequestration, while the geological science student completed his masters thesis in modeling the thermal response of CO{sub 2} injection in brine and, as a direct result of participation in this project, is now employed at ExxonMobil as a full-time staff geologist.

Paolini, Christopher; Castillo, Jose

2012-11-30T23:59:59.000Z

151

Nuclear Symmetry Energy in Relativistic Mean Field Theory  

E-Print Network (OSTI)

The Physical origin of the nuclear symmetry energy is studied within the relativistic mean field (RMF) theory. Based on the nuclear binding energies calculated with and without mean isovector potential for several isobaric chains we conform earlier Skyrme-Hartree-Fock result that the nuclear symmetry energy strength depends on the mean level spacing $\\epsilon (A)$ and an effective mean isovector potential strength $\\kappa (A)$. A detaied analysis of isospin dependence of the two components contributing to the nuclear symmetry energy reveals a quadratic dependence due to the mean-isoscalar potential, $\\sim\\epsilon T^2$, and, completely unexpectedly, the presence of a strong linear component $\\sim\\kappa T(T+1+\\epsilon/\\kappa)$ in the isovector potential. The latter generates a nuclear symmetry energy in RMF theory that is proportional to $E_{sym}\\sim T(T+1)$ at variance to the non-relativistic calculation. The origin of the linear term in RMF theory needs to be further explored.

Shufang Ban; Jie Meng; Wojciech Satula; Ramon A. Wyss

2005-09-12T23:59:59.000Z

152

Gravity Dual Corrections to the Heavy Quark Potential at Finite-Temperature  

E-Print Network (OSTI)

We apply gauge/gravity duality to compute $1/N^2_c$ corrections to the heavy quark potentials of a quark--anti-quark pair ($Q\\bar Q$) and of a quark--quark pair ($QQ$) immersed into the strongly coupled N = 4 SYM plasma. On the gravity side these corrections come from the exchanges of supergravity modes between two string worldsheets stretching from the UV boundary of AdS space to the black hole horizon in the bulk and smeared over $S^5$. We find that the contributions to the $Q\\bar Q$ potential coming from the exchanges of all of the relevant modes (such as dilaton, massive scalar, 2-form field, and graviton) are all attractive, leading to an attractive net $Q\\bar Q$ potential. We show that at large separations $r$ and/or high-temperature $T$ the potential is of Yukawa-type, dominated by the graviton exchange, in agreement with earlier findings. On the other hand, at small-$r T$ the $Q\\bar Q$ potential scales as $\\sim (1/r) \\ln (1/rT)$. In the case of $QQ$ potential the 2-form contribution changes sign and becomes repulsive: however, the net $QQ$ potential remains attractive. At large-$r T$ it is dominated by the graviton exchange, while at small-$r T$ the $QQ$ potential becomes Coulomb-like.

Hovhannes R. Grigoryan; Yuri V. Kovchegov

2011-05-11T23:59:59.000Z

153

PT-symmetry breaking in complex nonlinear wave equations and their deformations  

E-Print Network (OSTI)

We investigate complex versions of the Korteweg-deVries equations and an Ito type nonlinear system with two coupled nonlinear fields. We systematically construct rational, trigonometric/hyperbolic, elliptic and soliton solutions for these models and focus in particular on physically feasible systems, that is those with real energies. The reality of the energy is usually attributed to different realisations of an antilinear symmetry, as for instance PT-symmetry. It is shown that the symmetry can be spontaneously broken in two alternative ways either by specific choices of the domain or by manipulating the parameters in the solutions of the model, thus leading to complex energies. Surprisingly the reality of the energies can be regained in some cases by a further breaking of the symmetry on the level of the Hamiltonian. In many examples some of the fixed points in the complex solution for the field undergo a Hopf bifurcation in the PT-symmetry breaking process. By employing several different variants of the sym...

Cavaglia, Andrea; Bagchi, Bijan

2011-01-01T23:59:59.000Z

154

On the Mutual Information between disconnected regions in AdS/CFT  

E-Print Network (OSTI)

The holographic mutual information $I_{AB}$ between two "small" coplanar and wide separated circular regions $A$ and $B$ in the four dimensional $\\MN=4$ SYM gauge theory dual to Type IIB string theory in AdS$_5 \\times S^5$, is computed. In our proposal, we first interpret the Ryu-Takayanagi prescription for the holographic computation of the entanglement entropy and the mutual information, in terms of submanifold observables associated with $k$-branes in the AdS/CFT correspondence. Then we provide a long distance expansion for the $I_{AB}$ whose coefficients appear as a byproduct of the operator product expansion for the correlators of these $k$-submanifold observables. It is shown that, while undergoing a phase transition at a critical distance, the holographic mutual information, instead of strictly vanishing, decays with a power law whose leading contributions of order $N^{1/2}$, originate from the exchange of pairs of the lightest bulk particles between $A$ and $B$. These particles correspond to operators in the boundary field theory with the smallest scaling dimensions.

Javier Molina-Vilaplana

2013-05-05T23:59:59.000Z

155

Toward the AdS/CFT gravity dual for High Energy Collisions: I.Falling into the AdS  

E-Print Network (OSTI)

In the context of the AdS/CFT correspondence we discuss the gravity dual of a high energy collision in a strongly coupled ${\\cal N}=4$ SYM gauge theory. We suggest a setting in which two colliding objects are made of non-dynamical heavy quarks and antiquarks, which allows to treat the process in classical string approximation. Collision ``debris'' consist of closed as well as open strings. If the latter have ends on two outgoing charges, and thus are being ``stretched'' along the collision axes. We discuss motion in AdS of some simple objects first -- massless and massive particles -- and then focus on open strings. We study the latter in a considerable detail, concluding that they rapidly become ``rectangular'' in proper time -spatial rapidity $\\tau-y$ coordinates with well separated fragmentation part and a near-free-falling rapidity-independent central part. Assuming that in the collisions of ``walls'' of charges multiple stretching strings are created, we also consider the motion of a 3d stretching membrane. We then argue that a complete solution can be approximated by two different vacuum solutions of Einstein eqns, with matter membrane separating them. We identify one of this solution with Janik-Peschanski stretching black hole solution, and show that all objects approach its (retreating) horizon in an universal manner.

Shu Lin; Edward Shuryak

2006-10-13T23:59:59.000Z

156

A Maximally Supersymmetric Kondo Model  

Science Conference Proceedings (OSTI)

We study the maximally supersymmetric Kondo model obtained by adding a fermionic impurity to N = 4 supersymmetric Yang-Mills theory. While the original Kondo problem describes a defect interacting with a free Fermi liquid of itinerant electrons, here the ambient theory is an interacting CFT, and this introduces qualitatively new features into the system. The model arises in string theory by considering the intersection of a stack of M D5-branes with a stack of N D3-branes, at a point in the D3 worldvolume. We analyze the theory holographically, and propose a dictionary between the Kondo problem and antisymmetric Wilson loops in N = 4 SYM. We perform an explicit calculation of the D5 fluctuations in the D3 geometry and determine the spectrum of defect operators. This establishes the stability of the Kondo fixed point together with its basic thermodynamic properties. Known supergravity solutions for Wilson loops allow us to go beyond the probe approximation: the D5s disappear and are replaced by three-form flux piercing a new topologically non-trivial S3 in the corrected geometry. This describes the Kondo model in terms of a geometric transition. A dual matrix model reflects the basic properties of the corrected gravity solution in its eigenvalue distribution.

Harrison, Sarah; Kachru, Shamit; Torroba, Gonzalo; /Stanford U., Phys. Dept. /SLAC

2012-02-17T23:59:59.000Z

157

A COMPTON-THICK WIND IN THE HIGH-LUMINOSITY QUASAR, PDS 456  

SciTech Connect

PDS 456 is a nearby (z = 0.184), luminous (L {sub bol} {approx} 10{sup 47} erg s{sup -1}) type I quasar. A deep 190 ks Suzaku observation in 2007 February revealed the complex, broadband X-ray spectrum of PDS 456. The Suzaku spectrum exhibits highly statistically significant absorption features near 9 keV in the quasar rest frame. We show that the most plausible origin of the absorption is from blueshifted resonance (1s-2p) transitions of hydrogen-like iron (at 6.97 keV in the rest frame). This indicates that a highly ionized outflow may be present moving at near relativistic velocities ({approx} 0.25c). A possible hard X-ray excess is detected above 15 keV with the Hard X-ray Detector (at 99.8% confidence), which may arise from high column density gas (N {sub H} > 10{sup 24} cm{sup -2}) partially covering the X-ray emission, or through strong Compton reflection. Here we propose that the iron K-shell absorption in PDS 456 is associated with a thick, possibly clumpy outflow, covering about 20% of 4{pi} steradian solid angle. The outflow is likely launched from the inner accretion disk, within 15-100 gravitational radii of the black hole. The kinetic power of the outflow may be similar to the bolometric luminosity of PDS 456. Such a powerful wind could have a significant effect on the co-evolution of the host galaxy and its supermassive black hole, through feedback.

Reeves, J. N. [Astrophysics Group, School of Physical and Geographical Sciences, Keele University, Keele, Staffordshire, ST5 5BG (United Kingdom); O'Brien, P. T. [Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH (United Kingdom); Braito, V. [Department of Physics and Astronomy, Johns Hopkins University, N Charles Street, Baltimore, MD 21218 (United States); Behar, E.; Turner, T. J.; Mushotzky, R. [Astrophysics Division, NASA Goddard Space Flight Center, Greenbelt Road, Greenbelt, MD 20771 (United States); Miller, L. [Department of Physics, University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH (United Kingdom); Fabian, A. C. [Institute of Astronomy, Madingley Road, Cambridge CB3 0HA (United Kingdom); Kaspi, S. [Department of Physics, Technion, Haifa 32000 (Israel); Ward, M. [Department of Physics, University of Durham, South Road, Durham DH1 3LE (United Kingdom)], E-mail: jnr@astro.keele.ac.uk

2009-08-10T23:59:59.000Z

158

AN INTERMEDIATE LUMINOSITY TRANSIENT IN NGC 300: THE ERUPTION OF A DUST-ENSHROUDED MASSIVE STAR  

SciTech Connect

We present multi-epoch high-resolution optical spectroscopy, UV/radio/X-ray imaging, and archival Hubble and Spitzer observations of an intermediate luminosity optical transient recently discovered in the nearby galaxy NGC 300. We find that the transient (NGC 300 OT2008-1) has a peak absolute magnitude of M{sub bol} {approx} -11.8 mag, intermediate between novae and supernovae, and similar to the recent events M85 OT2006-1 and SN 2008S. Our high-resolution spectra, the first for this event, are dominated by intermediate velocity ({approx}200-1000 km s{sup -1}) hydrogen Balmer lines and Ca II emission and absorption lines that point to a complex circumstellar environment, reminiscent of the yellow hypergiant IRC+10420. In particular, we detect asymmetric Ca II H and K absorption with a broad red wing extending to {approx}10{sup 3} km s{sup -1}, indicative of gas inflow at high velocity (possibly the wind of a massive binary companion). The low luminosity, intermediate velocities, and overall similarity to a known eruptive star indicate that the event did not result in a complete disruption of the progenitor. We identify the progenitor in archival Spitzer observations, with deep upper limits from Hubble data. The spectral energy distribution points to a dust-enshrouded star with a luminosity of about 6 x 10{sup 4} L{sub sun}, indicative of a {approx}10-20 M{sub sun} progenitor (or binary system). This conclusion is in good agreement with our interpretation of the outburst and circumstellar properties. The lack of significant extinction in the transient spectrum indicates that the dust surrounding the progenitor was cleared by the outburst. We thus predict that the progenitor should be eventually visible with Hubble if the transient event marks an evolutionary transition to a dust-free state, or with Spitzer if the event marks a cyclical process of dust formation.

Berger, E.; Soderberg, A. M.; Foley, R. J.; Dupree, A. K. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Chevalier, R. A. [Department of Astronomy, University of Virginia, P.O. Box 400325, Charlottesville, VA 22904-4325 (United States); Fransson, C. [Department of Astronomy, Stockholm University, AlbaNova, SE-106 91 Stockholm (Sweden); Leonard, D. C. [Department of Astronomy, San Diego State University, PA-210, 5500 Campanile Drive, San Diego, CA 92182-1221 (United States); Debes, J. H. [Carnegie Institution of Washington, Department of Terrestrial Magnetism, 5241 Broad Branch Road, Washington, DC 20015 (United States); Diamond-Stanic, A. M.; Tremonti, C. A. [Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States); Ivans, I. I.; Thompson, I. B. [Observatories of the Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, CA 91101 (United States); Simmerer, J. [Lund Observatory, Box 43, SE-221 00 Lund (Sweden)

2009-07-10T23:59:59.000Z

159

Pan-STARRS1 DISCOVERY OF TWO ULTRALUMINOUS SUPERNOVAE AT z Almost-Equal-To 0.9  

Science Conference Proceedings (OSTI)

We present the discovery of two ultraluminous supernovae (SNe) at z Almost-Equal-To 0.9 with the Pan-STARRS1 Medium Deep Survey. These SNe, PS1-10ky and PS1-10awh, are among the most luminous SNe ever discovered, comparable to the unusual transients SN 2005ap and SCP 06F6. Like SN 2005ap and SCP 06F6, they show characteristic high luminosities (M{sub bol} Almost-Equal-To -22.5 mag), blue spectra with a few broad absorption lines, and no evidence for H or He. We have constructed a full multi-color light curve sensitive to the peak of the spectral energy distribution in the rest-frame ultraviolet, and we have obtained time series spectroscopy for these SNe. Given the similarities between the SNe, we combine their light curves to estimate a total radiated energy over the course of explosion of (0.9-1.4) Multiplication-Sign 10{sup 51} erg. We find photospheric velocities of 12,000-19,000 km s{sup -1} with no evidence for deceleration measured across {approx}3 rest-frame weeks around light curve peak, consistent with the expansion of an optically thick massive shell of material. We show that, consistent with findings for other ultraluminous SNe in this class, radioactive decay is not sufficient to power PS1-10ky, and we discuss two plausible origins for these events: the initial spin-down of a newborn magnetar in a core-collapse SN, or SN shock breakout from the dense circumstellar wind surrounding a Wolf-Rayet star.

Chomiuk, L. [National Radio Astronomy Observatory, P.O. Box O, Socorro, NM 87801 (United States); Chornock, R.; Soderberg, A. M.; Berger, E.; Foley, R. J.; Kirshner, R. P.; Czekala, I. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Chevalier, R. A. [Department of Astronomy, University of Virginia, P.O. Box 400325, Charlottesville, VA 22904-4325 (United States); Huber, M. E.; Gezari, S.; Riess, A.; Rodney, S. A. [Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218 (United States); Narayan, G.; Stubbs, C. W. [Department of Physics, Harvard University, Cambridge, MA 02138 (United States); Rest, A. [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Smartt, S. J. [Astrophysics Research Centre, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN (United Kingdom); Tonry, J. L.; Burgett, W. S.; Chambers, K. C. [Institute for Astronomy, University of Hawaii at Manoa, Honolulu, HI 96822 (United States); Wood-Vasey, W. M., E-mail: lchomiuk@cfa.harvard.edu [Department of Physics and Astronomy, University of Pittsburgh, 3941 O'Hara Street, Pittsburgh, PA 15260 (United States); and others

2011-12-20T23:59:59.000Z

160

THE ATTRACTIVENESS OF MATERIAS ASSOCIATED WITH THORIUM-BASED NUCLEAR FUEL CYCLES FOR PHWRS  

SciTech Connect

This paper reports the continued evaluation of the attractiveness of materials mixtures containing special nuclear materials (SNM) associated with thorium based nuclear fuel cycles. Specifically, this paper examines a thorium fuel cycle in which a pressurized heavy water reactor (PHWR) is fueled with mixtures of natural uranium/233U/thorium. This paper uses a PHWR fueled with natural uranium as a base fuel cycle, and then compares material attractiveness of fuel cycles that use 233U/thorium salted with natural uranium. The results include the material attractiveness of fuel at beginning of life (BoL), end of life (EoL), and the number of fuel assemblies required to collect a bare critical mass of plutonium or uranium. This study indicates what is required to render the uranium as having low utility for use in nuclear weapons; in addition, this study estimates the increased number of assemblies required to accumulate a bare critical mass of plutonium that has a higher utility for use in nuclear weapons. This approach identifies that some fuel cycles may be easier to implement the International Atomic Energy Agency (IAEA) safeguards approach and have a more effective safeguards by design outcome. For this study, approximately one year of fuel is required to be reprocessed to obtain one bare critical mass of plutonium. Nevertheless, the result of this paper suggests that all spent fuel needs to be rigorously safeguarded and provided with high levels of physical protection. This study was performed at the request of the United States Department of Energy /National Nuclear Security Administration (DOE/NNSA). The methodology and key findings will be presented.

Prichard, Andrew W.; Niehus, Mark T.; Collins, Brian A.; Bathke, Charles G.; Ebbinghaus, Bartley B.; Hase, Kevin R.; Sleaford, Brad W.; Robel, Martin; Smith, Brian W.

2011-07-17T23:59:59.000Z

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161

Neutronic evaluation of a non-fertile fuel for the disposition of weapons-grade plutonium in a boiling water reactor  

Science Conference Proceedings (OSTI)

A new non-fertile, weapons-grade plutonium oxide fuel concept is developed and evaluated for deep burn applications in a boiling water reactor environment using the General Electric 8x8 Advanced Boiling Water Reactor (ABWR) fuel assembly dimensions and pitch. Detailed infinite lattice fuel burnup results and neutronic performance characteristics are given and although preliminary in nature, clearly demonstrate the fuel`s potential as an effective means to expedite the disposition of plutonium in existing light water reactors. The new non-fertile fuel concept is an all oxide composition containing plutonia, zirconia, calcia, and erbia having the following design weight percentages: 8.3; 80.4; 9.7; and 1.6. This fuel composition in an infinite fuel lattice operating at linear heat generation rates of 6.0 or 12.0 kW/ft per rod can remain critical for up to 1,200 and 600 Effective Full Power Days (EFPD), respectively, and achieve a burnup of 7.45 {times} 10{sup 20} f/cc. These burnups correspond to a 71--73% total plutonium isotope destruction and a 91--94% destruction of the {sup 239}Pu isotope for the 0--40% moderator steam void condition. Total plutonium destruction greater than 73% is possible with a fuel management scheme that allows subcritical fuel assemblies to be driven by adjacent high reactivity assemblies. The fuel exhibits very favorable neutron characteristics from beginning-of-life (BOL) to end-of-life (EOL). Prompt fuel Doppler coefficient of reactivity are negative, with values ranging between {minus}0.4 to {minus}2.0 pcm/K over the temperature range of 900 to 2,200 K. The ABWR fuel lattice remains in an undermoderated condition for both hot operational and cold startup conditions over the entire fuel burnup lifetime.

Sterbentz, J.W.

1994-10-01T23:59:59.000Z

162

Iron K line Variability in the Low-Luminosity AGN NGC 4579  

E-Print Network (OSTI)

We present results of new ASCA observations of the low-luminosity AGN (LLAGN) NGC 4579 obtained on 1998 December 18 and 28, and we report on detection of variability of an iron K emission line. The X-ray luminosities in the 2--10 keV band for the two observations are nearly identical (LX $\\approx$ 2$\\times10^{41}$ ergs/s), but they are $\\sim$35% larger than that measured in 1995 July by Terashima et al. An Fe K emission line is detected at $6.39\\pm0.09$ keV (source rest frame) which is lower than the line energy $6.73^{+0.13}_{-0.12}$ keV in the 1995 observation. If we fit the Fe lines with a blend of two Gaussians centered at 6.39 keV and 6.73 keV, the intensity of the 6.7 keV line decreases, while the intensity of the 6.4 keV line increases, within an interval of 3.5 yr. This variability rules out thermal plasmas in the host galaxy as the origin of the ionized Fe line in this LLAGN. The detection and variability of the 6.4 keV line indicates that cold matter subtends a large solid angle viewed from the nucleus and that it is located within $\\sim1$ pc from the nucleus. It could be identified with an optically thick standard accretion disk. If this is the case, a standard accretion disk is present at the Eddington ratio of $L_{\\rm Bol}/L_{\\rm Eddington} \\sim 2\\times10^{-3}$. A broad disk-line profile is not clearly seen and the structure of the innermost part of accretion disk remains unclear.

Y. Terashima; L. C. Ho; A. F. Ptak; T. Yaqoob; H. Kunieda; K. Misaki; P. J. Serlemitsos

2000-06-05T23:59:59.000Z

163

SHORT GAS DISSIPATION TIMESCALES: DISKLESS STARS IN TAURUS AND CHAMAELEON I  

Science Conference Proceedings (OSTI)

We present an Advanced Camera for Surveys/Solar Blind Channel far-ultraviolet (FUV) study of H{sub 2} gas in 12 weak T Tauri stars in nearby star-forming regions. The sample consists of sources which have no evidence of inner disk dust. Our new FUV spectra show that in addition to the dust, the gas is depleted from the inner disk. This sample is combined with a larger FUV sample of accretors and non-accretors with ages between 1 and 100 Myr, showing that as early as 1-3 Myr, systems both with and without gas are found. Possible mechanisms for depleting gas quickly include viscous evolution, planet formation, and photoevaporation by stellar radiation fields. Since these mechanisms alone cannot account for the lack of gas at 1-3 Myr, it is likely that the initial conditions (e.g., initial disk mass or core angular momentum) contribute to the variety of disks observed at any age. We estimate the angular momentum of a cloud needed for most of the mass to fall very close to the central object and compare this to models of the expected distribution of angular momenta. Up to 20% of cloud cores have low enough angular momenta to form disks with the mass close to the star, which would then accrete quickly; this percentage is similar to the fraction of diskless stars in the youngest star-forming regions. With our sample, we characterize the chromospheric contribution to the FUV luminosity and find that L{sub FUV}/L{sub bol} saturates at {approx}10{sup -4.1}.

Ingleby, Laura; Calvet, Nuria; Briceno, Cesar [Department of Astronomy, University of Michigan, 830 Dennison Building, 500 Church Street, Ann Arbor, MI 48109 (United States); Herczeg, Gregory, E-mail: lingleby@umich.edu, E-mail: ncalvet@umich.edu [The Kavli Institute for Astronomy and Astrophysics, Peking University, Yi He Yuan Lu 5, Hai Dian Qu, Beijing 100871 (China)

2012-06-20T23:59:59.000Z

164

Sensitivity and uncertainty analysis applied to the JHR reactivity prediction  

SciTech Connect

The on-going AMMON program in EOLE reactor at CEA Cadarache (France) provides experimental results to qualify the HORUS-3D/N neutronics calculation scheme used for the design and safety studies of the new Material Testing Jules Horowitz Reactor (JHR). This paper presents the determination of technological and nuclear data uncertainties on the core reactivity and the propagation of the latter from the AMMON experiment to JHR. The technological uncertainty propagation was performed with a direct perturbation methodology using the 3D French stochastic code TRIPOLI4 and a statistical methodology using the 2D French deterministic code APOLLO2-MOC which leads to a value of 289 pcm (1{sigma}). The Nuclear Data uncertainty propagation relies on a sensitivity study on the main isotopes and the use of a retroactive marginalization method applied to the JEFF 3.1.1 {sup 27}Al evaluation in order to obtain a realistic multi-group covariance matrix associated with the considered evaluation. This nuclear data uncertainty propagation leads to a K{sub eff} uncertainty of 624 pcm for the JHR core and 684 pcm for the AMMON reference configuration core. Finally, transposition and reduction of the prior uncertainty were made using the Representativity method which demonstrates the similarity of the AMMON experiment with JHR (the representativity factor is 0.95). The final impact of JEFF 3.1.1 nuclear data on the Begin Of Life (BOL) JHR reactivity calculated by the HORUS-3D/N V4.0 is a bias of +216 pcm with an associated posterior uncertainty of 304 pcm (1{sigma}). (authors)

Leray, O.; Vaglio-Gaudard, C.; Hudelot, J. P.; Santamarina, A.; Noguere, G. [CEA, DER, SPRC, F-13108 St Paul-Lez-Durance (France); Di-Salvo, J. [CEA, DER, SPEx, F-13108 St Paul-Lez-Durance (France)

2012-07-01T23:59:59.000Z

165

Table Definitions, Sources, and Explanatory Notes  

Gasoline and Diesel Fuel Update (EIA)

Residual Fuel Imports by State Residual Fuel Imports by State Definitions Key Terms Definition Barrel A unit of volume equal to 42 U.S. gallons. Imports Receipts of crude oil and petroleum products into the 50 States and the District of Columbia from foreign countries, Puerto Rico, the Virgin Islands, and other U.S. possessions and territories. Petroleum Administration for Defense (PAD) Districts Geographic aggregations of the 50 States and the District of Columbia into five districts by the Petroleum Administration for Defense in 1950. These districts were originally defined during World War II for purposes of administering oil allocation. Description and maps of PAD Districts and Refining Districts. Residual Fuel Oil A general classification for the heavier oils, known as No. 5 and No. 6 fuel oils, that remain after the distillate fuel oils and lighter hydrocarbons are distilled away in refinery operations. It conforms to ASTM Specifications D396 and D975 and Federal Specification VV-F-815C. No. 5, a residual fuel oil of medium viscosity, is also known as Navy Special and is defined in Military Specification MIL-F-859E, including Amendment 2 (NATO Symbol F-770). It is used in steam-powered vessels in government service and inshore powerplants. No. 6 fuel oil includes Bunker C fuel oil and is used for the production of electric power, space heating, vessel bunkering, and various industrial purposes.

166

Present status and future prospects for nonelectrical uses of geothermal resources  

DOE Green Energy (OSTI)

This report, which is part of a study initiated by the NATO Committee on the Challenges of Modern Society (CCMS), describes the current status of nonelectrical uses of geothermal resources. Such resources are defined as geothermal fluids between the temperatures of 50 and 160/sup 0/C. Current and potential uses of these resources including residential and commercial, agricultural and industrial applications are described. Also discussed are exploration and drilling; extraction and distribution; environmental impact; and economic and regulatory problems. Applications in a number of countries are described. Among the report's conclusions are: (1) Geothermal resources are widely distributed throughout the world. (2) The extraction of these resources presents no serious technical problems. (3) A wide variety of economically viable applications for these resources currently exists. (4) Current nonelectrical applications have a favorable economic structure compared with those of other energy sources. (5) Disposal of spent fluids has a significant ecological impact. Reinjection appears to be the most likely alternative. (6) The legal and institutional framework surrounding these applications needs both clarification and simplification.

Howard, J.H. (ed.)

1975-10-03T23:59:59.000Z

167

Committee on the Challenges of Modern Society solar energy pilot study. First follow-up report, October 1979, pilot country: United States; co-pilot countries: Denmark and France. CCMS report No. 110  

DOE Green Energy (OSTI)

During 1973 to 1978, over twenty nations participated in the NATO/CCMS Solar Energy Pilot Study, whose objective was to promote and accelerate the use of solar heating and cooling of buildings. The activities in this information exchange included (1) the regular reporting of national solar heating and cooling programs, (2) the development of a format for reporting the performance of solar heating and cooling systems, (3) the exchange of system performance reports, (4) the establishment of two specialized working groups for solar-assisted low energy dwellings and passive solar applications. At the conclusion of the pilot study in 1978, the participants formulated recommendations for continued action at the international level, as well as for action at the national level. This report describes the progress made in implementing those recommendations. In addition to detailing the steps taken to continue collaboration in various efforts initiated within the Solar Energy Pilot Study, the report contains papers on the 1979 status of the solar heating and cooling programs in seventeen CCMS countries.

None

1980-01-01T23:59:59.000Z

168

Strategic forces: Future requirements and options  

SciTech Connect

In the wake of the collapse of the Warsaw Pact and the apparent ending of the Cold War, there have been renewed calls for radical cuts in US strategic forces to levels far below the 10,000 or so warheads allowed each side under the current START proposal. Since it now appears that NATO for the first time will have the capability to defeat a Soviet conventional attack without the necessity of threatening to resort to nuclear weapons, this should pave the way for the rethinking of US strategy and the reduction of US strategic weapons requirements. In this new environment, it seems plausible that, with a modification of the Flexible Response doctrine to forego attempts to disarm the Soviet Union, deterrence could be maintained with 1500 or so survivable strategic weapons. With a new strategy that confined US strategic weapons to the role of deterring the use of nuclear weapons by other countries, a survivable force of about 500 weapons would seem sufficient. With this premise, the implications for the US strategic force structure are examined for two cases: a treaty that allows each side 3000 warheads and one that allows each side 1000 warheads. In Part 1 of this paper, the weapons requirements for deterrence are examined in light of recent changes in the geopolitical environment. In Part 2, it is assumed that the President and Congress have decided that deep cuts in strategic forces are acceptable. 128 refs., 12 figs., 12 tabs. (JF)

Speed, R.D.

1990-11-01T23:59:59.000Z

169

Chandra observation of an unusually long and intense X-ray flare from a young solar-like star in M78  

E-Print Network (OSTI)

LkHA312 has been observed serendipitously with the ACIS-I detector on board Chandra with 26h continuous exposure. This H_alpha emission line star belongs to the star-forming region M78 (NGC2068). From the optical and NIR data, we show that it is a pre-main sequence (PMS) low-mass star with a weak NIR excess. This genuine T Tauri star displayed an X-ray flare with an unusual long rise phase (~8h). The X-ray emission was nearly constant during the first 18h of the observation, and then increased by a factor of 13 during a fast rise phase (~2h), and reached a factor of 16 above the quiescent X-ray level at the end of a gradual phase (~6h) showing a slower rise. To our knowledge this flare, with \\~0.4-~0.5 cts/s, has the highest count rate observed so far with Chandra from a PMS low-mass star. By chance, the source position, 8.2' off-axis, protected this observation from pile-up. We make a spectral analysis of the X-ray emission versus time, showing that the plasma temperature of the quiescent phase and the flare peak reaches 29MK and 88MK, respectively. The quiescent and flare luminosities in the energy range 0.5--8keV corrected from absorption (N_H~1.7E21 cm^{-2}) are 6E30erg/s and ~1E32erg/s, respectively. The ratio of the quiescent X-ray luminosity on the LkHA312 bolometric luminosity is very high with log(L_X/L_bol)= -2.9, implying that the corona of LkHA312 reached the `saturation' level. The X-ray luminosity of the flare peak reaches ~2% of the stellar bolometric luminosity. The different phases of this flare are finally discussed in the framework of solar flares, which leads to the magnetic loop height from 3.1E10 to 1E11 cm (0.2-0.5 R*, i.e., 0.5-1.3 R_sun).

N. Grosso; T. Montmerle; E. D. Feigelson; T. G. Forbes

2004-02-27T23:59:59.000Z

170

Fe Emission And Ionized Excess Absorption in the Luminous Quasar 3C109 With XMM-Newton  

Science Conference Proceedings (OSTI)

We report results from an XMM-Newton observation of the broad-line radio galaxy 3C 109 (z=0.3056). Previous ASCA data revealed the presence of a broad iron line from the accretion disc with which the XMM-Newton spectrum is fully consistent. However, although improving the ASCA constraints on the line parameters, the quality of the data is not high enough to distinguish between an untruncated accretion disc extending down to small radii close to the black hole and a scenario in which the innermost 20-30 gravitational radii are missing. For this reason, our results are model-dependent and the hard data can be modeled equally well by considering an absorption scenario in which a large column of neutral gas partially covers the X-ray continuum source. However, the absorber would have to comprise hundreds/thousands very compact clouds close to the X-ray source, which seems rather extreme a requirement. The 2-10 keV intrinsic luminosity of 3C 109 is of the order of 2-3 x 10{sup 45} erg s{sup -1} regardless of the adopted model. A recent black hole mass estimate of {approx} 2 x 10{sup 8} M{sub {circle_dot}} implies that L{sub bol}/L{sub Edd} > 1. If partial covering is excluded, the observed reflection fraction (of the order of unity), steep photon index (1.86), and Fe line equivalent width (about 100 eV) all suggest to exclude that the X-ray continuum is strongly beamed indicating that the large Eddington ratio is associated with a radiatively efficient accretion process and making it unlikely that the innermost accretion disc is replaced by a thick radiatively inefficient medium such as in advection-dominated accretion models. We also confirm previous findings on the detection of low energy absorption in excess of the Galactic value, where we find excellent agreement with previous results obtained in X-rays and at other wavelengths (optical and infrared). The better quality of the XMM-Newton data enables us to attribute the excess absorption to slightly ionized gas in the line of sight, located at the redshift of 3C 109. The most likely interpretation for the excess absorption is that the line-of-sight is grazing the obscuring torus of unified models, which is consistent with the inclination inferred from the Fe line profile (about 40{sup o}) and with the hybrid radio-galaxy/quasar nature of 3C 109.

Miniutti, Giovanni; /Cambridge U., Inst. of Astron.; Ballantyne, D.R.; /Arizona U.; Allen, S.W.; /KIPAC, Menlo Park; Fabian, A.C.; /Cambridge U., Inst. of Astron.; Ross, R.R.; /Holy Cross Coll.

2006-06-09T23:59:59.000Z

171

Full-length U-xPu-10Zr (x=0, 8, 19 wt%) Fast Reactor Fuel Test in FFTF  

SciTech Connect

The Integral Fast Reactor-1 (IFR-1) experiment performed in the Fast Flux Test Facility (FFTF) was the only U-Pu-10Zr (Pu-0, 8 and 19 wt%) metallic fast reactor test with commercial-length (91.4 cm active fuel column length) conducted to date. With few remaining test reactors there is little opportunity for performing another test with a long active fuel column. The assembly was irradiated to the goal burnup of 10 at.%. The beginning of life (BOL) peak cladding temperature of the hottest pin was 608?C, cooling to 522?C at end of life (EOL). Selected fuel pins were examined non destructively using neutron radiography, precision axial gamma scanning, and both laser and spiral contact cladding profilometry. Destructive exams included plenum gas pressure, volume, and gas composition determinations on a number of pins followed by optical metallography, electron probe microanalysis (EPMA), and alpha and beta gamma autoradiography on a single U-19Pu-10Zr pin. The post-irradiation examinations (PIEs) showed very few differences compared to the short-pin (34.3 cm fuel column) testing performed on fuels of similar composition in Experimental Breeder Reactor-II (EBR-II). The fuel column grew axially slightly less than observed in the short pins, but with the same pattern of decreasing growth with increasing Pu content. There was a difference in the fuel-cladding chemical interaction (FCCI) in that the maximum cladding penetration by interdiffusion with fuel/fission products did not occur at the top of the fuel column where the cladding temperature is highest, as observed in EBR-II tests. Instead, the more exaggerated fission-rate profile of the FFTF pins resulted in a peak FCCI at ~0.7 X/L axial location along the fuel column. This resulted from a lower production of rare earth fission products higher in the fuel column as well as a much smaller delta-T between fuel center and cladding, and therefore less FCCI, despite the higher cladding temperature. This behavior could actually help extend the life of a fuel pin in a long pin reactor design to a higher peak fuel burnup.

D. L. Porter; H.C. Tsai

2012-08-01T23:59:59.000Z

172

Improved Miscible Nitrogen Flood Performance Utilizing Advanced Reservoir Characterization and Horizontal Laterals in a Class I Reservoir - East Binger (Marchand) Unit  

Science Conference Proceedings (OSTI)

The DOE-sponsored project at the East Binger Unit is an investigation into the benefits of reservoir characterization and horizontal wells in this particular setting of geologic and recovery method. The geologic setting is a tight (average porosity of 7% and average permeability of less than 1 millidarcy) Pennsylvanian-age sandstone at about 10,000 feet, and the recovery method is a miscible nitrogen flood. The projected oil recovery of the East Binger Unit, prior to the initiation of this project, was about 25%. Gravity segregation of nitrogen and crude oil was believed to be the principal cause of the poor sweep efficiency, and it was envisioned that with horizontal producing wells in the lower portion of the reservoir and horizontal injection wells near the top, the process could be converted from a lateral displacement process to a vertical displacement/gravity assisted process. Through the characterization and field development work completed in Budget Periods 1 and 2, Binger Operations, LLC (BOL) has developed a different interpretation of the sweep problem as well as a different approach to improving recovery. The sweep problem is now believed to be one of an areal nature, due to a combination of natural and hydraulic fracturing. Vertical wells have provided a much better economic return than have the horizontal wells. The natural and hydraulic fracturing manifests itself as a direction of higher permeability, and the flood is being converted to a line drive flood aligned with this orientation. Consistent with this concept, horizontal wells have been drilled along the line of the fracture orientation, such that hydraulic fracturing leads to 'longitudinal' fractures, in line with the wellbore. As such, the hydraulically fractured horizontal wells are not significantly different than hydraulically fractured vertical wells - save for the potential for a much longer fracture face. This Topical Report contains data from new wells, plus new and updated production, pressure, and gas analysis data that was not included in the Topical Report provided at the end of Budget Period 1. The analysis and interpretation of these data are provided in the many technical reports submitted throughout this project.

Joe Sinner

2004-06-30T23:59:59.000Z

173

UNIFICATION OF LUMINOUS TYPE 1 QUASARS THROUGH C IV EMISSION  

SciTech Connect

Using a sample of {approx}30,000 quasars from the 7th Data Release of the Sloan Digital Sky Survey, we explore the range of properties exhibited by high-ionization, broad emission lines, such as C IV {lambda}1549. Specifically, we investigate the anti-correlation between continuum luminosity and emission-line equivalent width (the Baldwin Effect (BEff)) and the 'blueshifting' of the high-ionization emission lines with respect to low-ionization emission lines. Employing improved redshift determinations from Hewett and Wild, the blueshift of the C IV emission line is found to be nearly ubiquitous, with a mean shift of {approx}810 km s{sup -1} for radio-quiet (RQ) quasars and {approx}360 km s{sup -1} for radio-loud (RL) quasars. The BEff is present in both RQ and RL samples. We consider these phenomena within the context of an accretion disk-wind model that is modulated by the nonlinear correlation between ultraviolet and X-ray continuum luminosity. Composite spectra are constructed as a function of C IV emission-line properties in an attempt to reveal empirical relationships between different line species and the continuum. Within a two-component disk+wind model of the broad emission-line region (BELR), where the wind filters the continuum seen by the disk component, we find that RL quasars are consistent with being dominated by the disk component, while broad absorption line quasars are consistent with being dominated by the wind component. Some RQ objects have emission-line features similar to RL quasars; they may simply have insufficient black hole (BH) spin to form radio jets. Our results suggest that there could be significant systematic errors in the determination of L{sub bol} and BH mass that make it difficult to place these findings in a more physical context. However, it is possible to classify quasars in a paradigm where the diversity of BELR parameters is due to differences in an accretion disk wind between quasars (and over time); these differences are underlain primarily by the spectral energy distribution, which ultimately must be tied to BH mass and accretion rate.

Richards, Gordon T.; Kruczek, Nicholas E.; Deo, Rajesh P.; Kratzer, Rachael M. [Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104 (United States); Gallagher, S. C. [Department of Physics and Astronomy, The University of Western Ontario, London, ON N6A 3K7 (Canada); Hall, Patrick B. [Department of Physics and Astronomy, York University, Toronto, Ontario M3J 1P3 (Canada); Hewett, Paul C. [Institute of Astronomy, Madingley Road, Cambridge CB3 0HA (United Kingdom); Leighly, Karen M. [Homer L. Dodge Department of Physics and Astronomy, The University of Oklahoma, 440 W. Brooks Street, Norman, OK 73019 (United States); Shen, Yue [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, MS-51, Cambridge, MA 02138 (United States)

2011-05-15T23:59:59.000Z

174

Advanced research workshop: nuclear materials safety  

SciTech Connect

The Advanced Research Workshop (ARW) on Nuclear Materials Safety held June 8-10, 1998, in St. Petersburg, Russia, was attended by 27 Russian experts from 14 different Russian organizations, seven European experts from six different organizations, and 14 U.S. experts from seven different organizations. The ARW was conducted at the State Education Center (SEC), a former Minatom nuclear training center in St. Petersburg. Thirty-three technical presentations were made using simultaneous translations. These presentations are reprinted in this volume as a formal ARW Proceedings in the NATO Science Series. The representative technical papers contained here cover nuclear material safety topics on the storage and disposition of excess plutonium and high enriched uranium (HEU) fissile materials, including vitrification, mixed oxide (MOX) fuel fabrication, plutonium ceramics, reprocessing, geologic disposal, transportation, and Russian regulatory processes. This ARW completed discussions by experts of the nuclear materials safety topics that were not covered in the previous, companion ARW on Nuclear Materials Safety held in Amarillo, Texas, in March 1997. These two workshops, when viewed together as a set, have addressed most nuclear material aspects of the storage and disposition operations required for excess HEU and plutonium. As a result, specific experts in nuclear materials safety have been identified, know each other from their participation in t he two ARW interactions, and have developed a partial consensus and dialogue on the most urgent nuclear materials safety topics to be addressed in a formal bilateral program on t he subject. A strong basis now exists for maintaining and developing a continuing dialogue between Russian, European, and U.S. experts in nuclear materials safety that will improve the safety of future nuclear materials operations in all the countries involved because of t he positive synergistic effects of focusing these diverse backgrounds of nuclear experience on a common objectivethe safe and secure storage and disposition of excess fissile nuclear materials.

Jardine, L J; Moshkov, M M

1999-01-28T23:59:59.000Z

175

Geothermal pilot study final report: creating an international geothermal energy community  

DOE Green Energy (OSTI)

The Geothermal Pilot Study under the auspices of the Committee on the Challenges of Modern Society (CCMS) was established in 1973 to apply an action-oriented approach to international geothermal research and development, taking advantage of the established channels of governmental communication provided by the North Atlantic Treaty Organization (NATO). The Pilot Study was composed of five substudies. They included: computer-based information systems; direct application of geothermal energy; reservoir assessment; small geothermal power plants; and hot dry rock concepts. The most significant overall result of the CCMS Geothermal Pilot Study, which is now complete, is the establishment of an identifiable community of geothermal experts in a dozen or more countries active in development programs. Specific accomplishments include the creation of an international computer file of technical information on geothermal wells and fields, the development of studies and reports on direct applications, geothermal fluid injection and small power plants, and the operation of the visiting scientist program. In the United States, the computer file has aready proven useful in the development of reservoir models and of chemical geothermometers. The state-of-the-art report on direct uses of geothermal energy is proving to be a valuable resource document for laypersons and experts in an area of increasing interest to many countries. Geothermal fluid injection studies in El Salvador, New Zealand, and the United States have been assisted by the Reservoir Assessment Substudy and have led to long-range reservoir engineering studies in Mexico. At least seven small geothermal power plants are in use or have been planned for construction around the world since the Small Power Plant Substudy was instituted--at least partial credit for this increased application can be assigned to the CCMS Geothermal Pilot Study. (JGB)

Bresee, J.C.; Yen, W.W.S.; Metzler, J.E. (eds.)

1978-06-01T23:59:59.000Z

176

Kenneth Gray - Argonne National Laboratories, Materials Sicence Division  

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

EM > Kenneth Gray EM > Kenneth Gray Kenneth Gray Group Leader, Sr. Physicist Bldg. 223, A-125 Phone: 630-252-9595 This e-mail address is being protected from spambots. You need JavaScript enabled to view it. Biography Kenneth E. Gray is a Senior Scientist in the Materials Science Division. His experimental thesis involved tunneling studies of superconductors and non-equilibrium effects. He joined Argonne's superconductivity group as a post-doc, and in 1972 became a staff member specializing in non-equilibrium effects in superconductors. He is presently the group leader of the Emerging Materials Group. He was the Director for the NATO Advanced Study Institute "Nonequilibrium Superconductivity, Phonons and Kapitza Boundaries" Maratea, Italy, August 25-September 5, 1980 and Chairman of the "1992 Applied Superconductivity Conference" Chicago, Illinois, August 23-28, 1992. He was the Thin Film Research Area Coordinator for the NSF Science and Technology Center for Superconductivity (University of Illinois, Urbana), Feb. 1989-Jan. 1992. He edited Nonequilibrium Superconductivity, Phonons and Kapitza Boundaries, (Plenum Publishing Corporation, 1981). He holds 5 patents, and Research and Development Magazine recognized two of his inventions as among the 100 most significant technical products of their year. These are the Superconducting Tunnel Junction Transistor in 1979 and the 3He/4He Dilution Refrigerator (with P. Roach) in 1988. He received the 1989 Significant Implication for Department of Energy Related Technologies in Solid State Physics - "Thin-Film Superconducting Device Concepts and Development". He has co-authored 250 publications (5300 citations) and is known for research collaborations on flux dynamics and point-contact tunneling in high-temperature superconductors and transport measurements in the highly anisotropic colossal magnetoresistive layered manganites. He is a Senior Scientist and the Group Leader for the Emerging Materials Group at Argonne. His current research interests include tunneling in exotic superconductors, phase diagrams of layered manganites and non-equilibrium effects in complex electronic oxides. He was also an integral part of the recent development of a compact solid-state source for THz radiation.

177

REDUCTIONS WITHOUT REGRET: HISTORICAL PERSPECTIVES  

SciTech Connect

This is the first of three papers (in addition to an introductory summary) aimed at providing a framework for evaluating future reductions or modifications of the U.S. nuclear force, first by considering previous instances in which nuclear-force capabilities were eliminated; second by looking forward into at least the foreseeable future at the features of global and regional deterrence (recognizing that new weapon systems currently projected will have expected lifetimes stretching beyond our ability to predict the future); and third by providing examples of past or possible undesirable outcomes in the shaping of the future nuclear force, as well as some closing thoughts for the future. This paper examines the circumstances and consequences of the elimination of ? The INF-range Pershing II ballistic missile and Gryphon Ground-Launched Cruise Missile (GLCM), deployed by NATO under a dual-track strategy to counter Soviet intermediate-range missiles while pursuing negotiations to limit or eliminate all of these missiles. ? The Short-Range Attack Missile (SRAM), which was actually a family of missiles including SRAM A, SRAM B (never deployed), and SRAM II and SRAM T, these last two cancelled during an over-budget/behind-schedule development phase as part of the Presidential Nuclear Initiatives of 1991 and 1992. ? The nuclear-armed version of the Tomahawk Land-Attack Cruise Missile (TLAM/N), first limited to shore-based storage by the PNIs, and finally eliminated in deliberations surrounding the 2010 Nuclear Posture Review Report. ? The Missile-X (MX), or Peacekeeper, a heavy MIRVed ICBM, deployed in fixed silos, rather than in an originally proposed mobile mode. Peacekeeper was likely intended as a bargaining chip to facilitate elimination of Russian heavy missiles. The plan failed when START II did not enter into force, and the missiles were eliminated at the end of their intended service life. ? The Small ICBM (SICBM), or Midgetman, a road-mobile, single-warhead missile for which per-unit costs were climbing when it was eliminated under the PNIs. Although there were liabilities associated with each of these systems, there were also unique capabilities; this paper lays out the pros and cons for each. Further, we articulate the capabilities that were eliminated with these systems.

Swegle, J.; Tincher, D.

2013-09-09T23:59:59.000Z

178

Storage and turnover of organic matter in soil  

Science Conference Proceedings (OSTI)

Historically, attention on soil organic matter (SOM) has focused on the central role that it plays in ecosystem fertility and soil properties, but in the past two decades the role of soil organic carbon in moderating atmospheric CO{sub 2} concentrations has emerged as a critical research area. This chapter will focus on the storage and turnover of natural organic matter in soil (SOM), in the context of the global carbon cycle. Organic matter in soils is the largest carbon reservoir in rapid exchange with atmospheric CO{sub 2}, and is thus important as a potential source and sink of greenhouse gases over time scales of human concern (Fischlin and Gyalistras 1997). SOM is also an important human resource under active management in agricultural and range lands worldwide. Questions driving present research on the soil C cycle include: Are soils now acting as a net source or sink of carbon to the atmosphere? What role will soils play as a natural modulator or amplifier of climatic warming? How is C stabilized and sequestered, and what are effective management techniques to foster these processes? Answering these questions will require a mechanistic understanding of how and where C is stored in soils. The quantity and composition of organic matter in soil reflect the long-term balance between plant carbon inputs and microbial decomposition, as well as other loss processes such as fire, erosion, and leaching. The processes driving soil carbon storage and turnover are complex and involve influences at molecular to global scales. Moreover, the relative importance of these processes varies according to the temporal and spatial scales being considered; a process that is important at the regional scale may not be critical at the pedon scale. At the regional scale, SOM cycling is influenced by factors such as climate and parent material, which affect plant productivity and soil development. More locally, factors such as plant tissue quality and soil mineralogy affect decomposition pathways and stabilization. These factors influence the stability of SOM in part by shaping its molecular characteristics, which play a fundamental role in nearly all processes governing SOM stability but are not the focus of this chapter. We review here the most important controls on the distribution and dynamics of SOM at plot to global scales, and methods used to study them. We also explore the concepts of controls, processes, and mechanisms, and how they operate across scales. The concept of SOM turnover, or mean residence time, is central to this chapter and so it is described in some detail. The Appendix details the use of radiocarbon ({sup 14}C), a powerful isotopic tool for studying SOM dynamics. Much of the material here was originally presented at a NATO Advanced Study Institute on 'Soils and Global Change: Carbon Cycle, Trace Gas Exchange and Hydrology', held June 16-27, 1997, at the Chateau de Bonas, France.

Torn, M.S.; Swanston, C.W.; Castanha, C.; Trumbore, S.E.

2008-07-15T23:59:59.000Z

179

Advanced Gas Turbine Systems Research, Technical Quarterly Progress Report. October 1, 1998--December 31, 1998  

Science Conference Proceedings (OSTI)

Major accomplishments during this reporting period by the Advanced Gas Turbine Systems Research (AGTSR) are: AGTSR submitted FY99 program continuation request to DOE-FETC for $4M; AGTSR submitted program and workshop Formation to the Collaborative Advanced Gas Turbine (CAGT) initiative; AGTSR distributed research accomplishment summaries to DOE-FETC in the areas of combustion, aero-heat transfer, and materials; AGTSR reviewed and cleared research papers with the IRB from Arizona State, Cornell, Wisconsin, Minnesota, Pittsburgh, Clemson, Texas and Georgia Tech; AGTSR prepared background material for DOE-FETC on three technology workshops for distribution at the DOE-ATS conference in Washington, DC; AGTSR coordinated two recommendations for reputable firms to conduct an economic impact analysis in support of new DOE gas turbine initiatives; AGTSR released letters announcing the short-list winners/non-winners from the 98RFP solicitation AGTSR updated fact sheet for 1999 and announced four upcoming workshops via the SCIES web page AGTSR distributed formation to EPRI on research successes, active university projects, and workshop offerings in 1999 AGTSR continued to conduct telephone debriefings to non-winning PI's born the 98RFP solicitation AGTSR distributed completed quarterly progress report assessments to the IRB experts in the various technology areas AGTSR provided Formation to GE-Evandale on the active combustion control research at Georgia Tech AGTSR provided information to AlliedSignal and Wright-Pat Air Force Base on Connecticut's latest short-listed proposal pertaining to NDE of thermal barrier coatings AGTSR submitted final technical reports from Georgia Tech - one on coatings and the other on active combustion control - to the HU3 for review and evaluation AGTSR coordinated the format, presentation and review of 28 university research posters for the ATS Annual Review Meeting in November, 1998 AGTSR published a research summary paper at the ATS Annual Review pertaining to the university consortium's activities AGTSR published and presented a paper on the status of ATS catalytic combustion R&D at the RTA/NATO Gas Turbine Combustion Symposium, October 12-16,1998 in Lisbon, Portugal IRE approved a 12-month add-on request from Penn State University to conduct an added research task in their multistage unsteady aerodynamics project AGTSR reviewed a research extension white paper from Clemson University with the IRB to conduct an added task pertaining to their mist/steam cooling research project AGTSR coordinated new research topics with the IR.Band select universities to facilitate R&D roadmapping needs at the Aero-Heat Transfer III workshop in Austin, TX AGTSR distributed FY97 research progress reports to DOE and the XRB; and AGTSR solicited new R&D topics from the IRB experts for the 1999 RFP.

NONE

1999-01-19T23:59:59.000Z

180

Nonproliferation, arms control and disarmament and extended deterrence in the new security environment  

Science Conference Proceedings (OSTI)

With the end of the Cold War, in a dramatically changed security environment, the advances in nonnuclear strategic capabilities along with reduced numbers and roles for nuclear forces has altered the calculus of deterrence and defense, at least for the United States. For many, this opened up a realistic possibility of a nuclear-free world. It soon became clear that the initial post-Cold War hopes were exaggerated. The world did change fundamentally, but it did not become more secure and stable. In place of the old Soviet threat, there has been growing concern about proliferation and terrorism involving nuclear and other weapons of mass destruction (WMD), regional conflicts, global instability and increasingly serious new and emerging threats, including cyber attacks and attacks on satellites. For the United States at least, in this emerging environment, the political rationales for nuclear weapons, from deterrence to reassurance to alliance management, are changing and less central than during the Cold War to the security of the United States, its friends and allies. Nuclear weapons remain important for the US, but for a far more limited set of roles and missions. As the Perry-Schlesinger Commission report reveals, there is a domestic US consensus on nuclear policy and posture at the highest level and for the near term, including the continued role of nuclear arms in deterring WMD use and in reassuring allies. Although the value of nuclear weapons has declined for the United States, the value of these weapons for Russia, China and so-called 'rogue' states is seen to be rising. The nuclear logic of NATO during Cold War - the need for nuclear weapons to counter vastly superior conventional capabilities of the Soviet Union and the Warsaw Pact - is today heard from Russians and even some proliferants. Moreover, these weapons present a way for rogues to achieve regional hegemony and possibly to deter interventions by the United States or others. While the vision of a nuclear-free world is powerful, both existing nuclear powers and proliferators are unlikely to forego nuclear weapons entirely in a world that is dangerous and uncertain. And the emerging world would not necessarily be more secure and stable without nuclear weapons. Even if nuclear weapons were given up by the United States and other nuclear-weapon states, there would continue to be concerns about the proliferation of nuclear, chemical and biological weapons, which would not disappear and could worsen. WMD terrorism would remain a concern that was largely unaffected by US and other nuclear-weapon decisions. Conventional capabilities would not disappear and the prospects for warfare could rise. In addition, new problems could arise if rogue states or other non-status-quo powers attempted to take advantage of moves toward disarmament, while friends and allies who are not reassured as in the past could reconsider their options if deterrence declined. To address these challenges, non- and counter-proliferation and counterterrorismincluding defenses and consequence management-are priorities, especially in light of an anticipated 'renaissance' in civil nuclear power. The current agenda of the United States and others includes efforts to: (1) Strengthen International Atomic Energy Agency (IAEA) and its safeguards system; (2) Strengthen export controls, especially for sensitive technologies, by limiting the development of reprocessing and enrichment technologies and by requiring the Additional Protocol as a condition of supply; (3) Establish a reliable supply regime, including the possibility of multilateral or multinational ownership of fuel cycle facilities, as a means to promote nuclear energy without increasing the risks of proliferation or terrorism; (4) Implement effectively UN Security Council Resolution 1540; and (5) Strengthen and institutionalize the Proliferation Security Initiative and the Global Initiative to Combat Nuclear Terrorism. These and other activities are important in themselves, and are essential to maintaining and strengthening the Nonproliferati

Pilat, Joseph F [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

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181

Changes in Russia's Military and Nuclear Doctrine  

Science Conference Proceedings (OSTI)

In 1993, the Russian Federation set out a new military doctrine that would determine the direction of its armed forces until President Putin set out the next doctrine in 2000. The Russian Federation creating the doctrine was new; the USSR had recently collapsed, Gorbachev - the creator of the predecessor to this doctrine in 1987 - was out of office, and the new Russian military had only been formed in May, 1992.1 The analysis of the 1993 doctrine is as follows: a definition of how doctrine is defined; a short history of Russian military doctrine leading up to the 1993 doctrine (officially the Basic Provisions of the Military Doctrine of the Russian Federation); and finally, what the doctrine established. An overview of the 1993 doctrine is: (1) Russia's 1993 doctrine was a return to older, more aggressive doctrine as a result of stability concerns surrounding the recent collapse of the USSR; (2) Russia turned from Gorbachev's 'defensive defense' in the 1987 doctrine to aggressive defense with the option of preempting or striking back against an aggressor; (3) Russia was deeply concerned about how nationalism would affect the former Soviet Republics, particularly in respect to the ethnic Russians still living abroad; and (4) Nuclear doctrine pledged to not be the first to use nuclear weapons but provided for the potential for escalation from a conventional to a nuclear war. The 2000 doctrine (officially the Russian Federation Military Doctrine) was created in a more stable world than the 1993 doctrine was. The Russian Federation had survived independence and the 'threat of direct military aggression against the Russian Federation and its allies' had diminished. It had secured all of the nuclear weapons from its neighbors Ukraine, Belarus, and Kazakhstan, and had elected a new president, Vladimir Putin, to replace Boris Yeltsin. Yet, even as the doctrine took more defensive tones than the 1993 doctrine, it expanded its nuclear options. Below are a new definition of what doctrine meant in 2000 and an outline of the 2000 doctrine. An overview of the 2000 doctrine is: (1) The 2000 doctrine was a return to a more defensive posture; the threat of nuclear retaliation, rather than that of preemptive force, would be its deterrence; (2) In order to strengthen its nuclear deterrence, Russia extended and redefined the cases in which nuclear weapons could be used to include a wider range of conflict types and a larger spectrum of attackers; and (3) Russia's threats changed to reflect its latest fear of engaging in a limited conflict with no prospect of the use of nuclear deterrence. In 2006, the defense minister and deputy prime minister Sergei Ivanov announced that the government was starting on a draft of a future doctrine. Four years later, in 2010, the Military Doctrine of the Russian Federation was put into effect with the intent of determining Russian doctrine until 2020. The 2010 doctrine, like all previous doctrines, was a product of the times in which it was written. Gone were many of the fears that had followed Russia for the past two decades. Below are an examination of the 2010 definition of doctrine as well as a brief analysis of the 2010 doctrine and its deviations from past doctrines. An overview of the 2010 doctrine is: (1) The new doctrine emphasizes the political centralization of command both in military policy and the use of nuclear weapons; (2) Nuclear doctrine remains the same in many aspects including the retention of first-use; (3) At the same time, doctrine was narrowed to using nuclear weapons only when the Russian state's existence is in danger; to continue strong deterrence, Russia also opted to follow the United States by introducing precision conventional weapons; (4) NATO is defined as Russia's primary external threat because of its increased global presence and its attempt to recruit states that are part of the Russian 'bloc'; and (5) The 2000 doctrine's defensive stance was left out of the doctrine; rumored options for use of nuclear weapons in local wars and in preemptive strikes were also left out.

Wolkov, Benjamin M. [Los Alamos National Laboratory; Balatsky, Galya I. [Los Alamos National Laboratory

2012-07-26T23:59:59.000Z