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1

Low-lying 3Po and 3Se states of Rb-, Cs-, and Fr-  

Science Journals Connector (OSTI)

Our Dirac R-matrix calculations suggest that none of the heavy alkali-metal negative ions, Rb, Cs, and Fr, has an excited bound state. Their lowest excited state appears to be a multiplet of 3PJo-shape resonances, the J=1 component of which was recently observed in photodetachment experiments on Cs-. We analyze these 3PJo and the 3Se excited negative ion states in partial and converged total scattering cross sections for slow electrons with incident kinetic energies below 120 meV. Our results are in excellent agreement with available experimental data. We also propose a new value for the electron affinity of Fr, provide the scattering length for electronic collisions with Rb, Cs, and Fr, and discuss the nuclear charge dependence of relativistic effects in the resonance profiles.

C. Bahrim and U. Thumm

2000-01-18T23:59:59.000Z

2

Angle-differential and momentum-transfer cross sections for e-+Rb, Cs, and Fr collisions at low energies: 3Fo shape resonances in Rb-, Cs-, and Fr- ions  

Science Journals Connector (OSTI)

Based on the relativistic Dirac R-matrix method, we calculate angle-dependent and momentum-transfer cross sections for electron scattering by Rb, Cs, and Fr atoms at impact energies below 3 eV. Our results for momentum transfer for e-+Rb and Cs collisions are compared with available data from swarm experiments. We find clear evidence for a Cs-(3Fo) shape resonance at 1.528 eV, in excellent agreement with angle-dependent electron-scattering measurements. We analyze and compare the 3Fo shape resonance in e-+Rb, Cs, and Fr elastic collisions.

C. Bahrim and U. Thumm

2001-07-17T23:59:59.000Z

3

Independent cross sections of Na, K, Rb, Cs, and Fr isotopes produced in Ta and U targets bombarded by C12 ions up to 77 MeV/nucleon  

Science Journals Connector (OSTI)

Isotopic distribution measurements for Na, K, Rb, Cs, and Fr in the reactions Ta181(C12, X)Na,K,Rb,Cs and U238(C12, X)Na,K,Rb,Cs,Fr at different energies E=13, 27, and 77 MeV/nucleon are reported. The independently observed yields of Rb and Cs show an important contribution for neutron-deficient nuclei. The U target shows very broad isotopic distributions which may be understood as a sum of two components. The results are compared to those obtained by nuclear reactions induced by protons over a wide energy range.NUCLEAR REACTIONS Ta181(C12, X)Na,K,Rb,Cs; U238(C12, X)Na,K,Rb,Cs,Fr; E=13, 27, 77 MeV/nucleon; measured Na, K, Rb, Cs, Fr isotopic distributions, heavy ion induced fission, spallation, on-line mass spectrometry.

M. de Saint Simon; S. Haan; G. Audi; A. Coc; M. Epherre; P. Guimbal; A. C. Mueller; C. Thibault; F. Touchard; M. Langevin

1982-12-01T23:59:59.000Z

4

Chapter 11 - Systematic Study of the Electronic Properties and Trends in the LiX (X = Na, K, Rb, Cs and Fr) Molecules  

Science Journals Connector (OSTI)

Abstract Alkali mixed diatomic molecules exhibit significant permanent dipole moment. They constitute a prototype of an ultra-cold quantum gas, which makes them candidates for fundamental quantum processes. This requires knowledge of their accurate electronic properties to guide the ongoing experiments. For this purpose, we have investigated the structure and spectroscopic properties of the first electronic states of 1,3?+, 1,3?, 1,3? symmetries for LiNa, LiK, LiRb, and LiCs molecules. We have used an ab initio approach based on pseudopotential techniques: parameterized l-dependent polarization potentials and full configuration interaction calculations through the CIPCI quantum chemistry package. The spectroscopic constants (Re, De, ?e, ?exe, and Be) of these states are derived and compared with the available theoretical and experimental work. In addition to the potential energy, accurate permanent and transition dipole moments are determined for a wide range of internuclear distances. A systematic study and analysis of the trend of the permanent dipole moments around the equilibrium distance of the ground state of LiX (X = Na, K, Rb, Cs and Fr) molecules are done. The results, compared to available theoretical and experimental work, show good agreement.

S. Bellayouni; I. Jendoubi; N. Mabrouk; H. Berriche

2014-01-01T23:59:59.000Z

5

Cosine Interaction in CsF and RbF  

Science Journals Connector (OSTI)

A series of measurements of the line shape of the fluorine resonance versus magnetic field have been made using a molecular-beam apparatus. Good theoretical agreement has been found for RbF. The CsF behavior is complicated by the overlapping Cs spectrum. The equivalent field at the fluorine nucleus per unit molecular rotation, Hr, is found to be 2.28±0.20 gauss and 3.00±0.15 gauss for RbF and CsF respectively. These results are less than those previously measured.

G. Bemski; W. A. Nierenberg; H. B. Silsbee

1955-04-15T23:59:59.000Z

6

The isotypic hydrogen phosphate and arsenate dihydrates M2HXO4?2H2O (M = Rb, Cs; X = P, As)  

Science Journals Connector (OSTI)

The four isotypic arsenate(V) and phosphate(V) dihydrates M2HXO4?2H2O (M = Rb, Cs; X = P, As) crystallize in the space group P21/c. A hypothetical proton-disordered C2/c structure is discussed.

St?ger, B.

2013-12-21T23:59:59.000Z

7

NMR relaxation study of the phase transitions and relaxation mechanisms of the alums MCr(SO{sub 4}){sub 2}.12H{sub 2}O (M=Rb and Cs) single crystals  

SciTech Connect

The physical properties and phase transition mechanisms of MCr(SO{sub 4}){sub 2}.12H{sub 2}O (M=Rb and Cs) single crystals have been investigated. The phase transition temperatures, NMR spectra, and the spin-lattice relaxation times T{sub 1} of the {sup 87}Rb and {sup 133}Cs nuclei in the two crystals were determined using DSC and FT NMR spectroscopy. The resonance lines and relaxation times of the {sup 87}Rb and {sup 133}Cs nuclei undergo significant changes at the phase transition temperatures. The sudden changes in the splitting of the Rb and Cs resonance lines are attributed to changes in the local symmetry of their sites, and the changes in the temperature dependences of T{sub 1} are related to variations in the symmetry of the octahedra of water molecules surrounding Rb{sup +} and Cs{sup +}. We also compared these {sup 87}Rb and {sup 133}Cs NMR results with those obtained for the trivalent cations Cr and Al in MCr(SO{sub 4}){sub 2}.12H{sub 2}O and MAl(SO{sub 4}){sub 2}.12H{sub 2}O crystals. - Graphical Abstract: The physical properties and phase transition mechanisms of MCr(SO{sub 4}){sub 2}.12H{sub 2}O (M=Rb, Cs, and NH{sub 4}) single crystals have been investigated. Highlights: > The physical properties and phase transition mechanisms of MCr(SO{sub 4}){sub 2}.12H{sub 2}O (M=Rb and Cs) crystals {yields} The NMR spectra and the spin-lattice relaxation times T{sub 1} of the {sup 87}Rb and {sup 133}Cs nuclei in the two crystals {yields} The variations in the symmetry of the octahedra of water molecules surrounding Rb{sup +} and Cs{sup +}.

Lim, Ae Ran, E-mail: aeranlim@hanmail.net [Department of Science Education, Jeonju University, Jeonju 560-759 (Korea, Republic of); Paik, Younkee [Solid State Analysis Team, Korea Basic Science Institute, Daegu 702-701 (Korea, Republic of); Lim, Kye-Young [Department of Energy and Electrical Engineering, Korea Polytechnic University, Siheung 429-793 (Korea, Republic of)

2011-06-15T23:59:59.000Z

8

Shape resonances in ground-state diatomic molecules: General trends and the example of RbCs  

SciTech Connect

The presence of shape resonances due to tunneling through the centrifugal barrier modifies strongly the dynamics of cold atom scattering. As shown on the example of the ground and lowest triplet electronic states of the {sup 85}Rb{sup 133}Cs molecule, the crucial parameter is, as usual for cold collisions, the scattering length. A general description of shape resonances of diatomic molecules is given from three simple single channel asymptotic models, whose respective performances are discussed. The first model, which consists of a R{sup -6} potential limited at short range by a repulsive wall, positioned to reproduce the s-wave scattering length, accounts satisfactorily for the main system-independent properties of shape resonances. Introduction in the model of energy- and angular-momentum-dependent nodal lines specific to the inner part of the potential greatly improves its efficiency. When the energy and angular momentum dependence of the nodal lines cannot be deduced from full potential calculations or from experiment, a rough, but universal, estimate of these properties is obtained by extending the R{sup -6} behavior of the potential up to the origin.

Londono, B. E. [Instituto de Fisica, Universidad de Antioquia, Calle 67 No. 53-108, AA 1226, Medellin (Colombia); Laboratoire Aime Cotton, CNRS, Batiment 505, Universite Paris-Sud, F-91405 Orsay Cedex (France); Mahecha, J. E. [Instituto de Fisica, Universidad de Antioquia, Calle 67 No. 53-108, AA 1226, Medellin (Colombia); Luc-Koenig, E.; Crubellier, A. [Laboratoire Aime Cotton, CNRS, Batiment 505, Universite Paris-Sud, F-91405 Orsay Cedex (France)

2010-07-15T23:59:59.000Z

9

Measurement of the Spin-Orbit Perturbation in the P-State Continuum of Heavy Alkali-Metal Atoms: K, Rb, and Cs  

Science Journals Connector (OSTI)

The spin-orbit interaction for the P-state continuum of heavy alkali metals was investigated in a photoionization experiment using spin-polarized alkali atoms and circularly polarized light. From the asymmetry in ion-counting rates corresponding to the two photon helicities, Fano's spin-orbit perturbation parameter x was determined over a range of several hundred angstroms for K, Rb, and Cs. The spin-orbit perturbation was found to increase from K to Rb to Cs as expected, and the nonlinear behavior of x as a function of the photon energy E was demonstrated for K. Knowledge of x(E) was used to establish accurate values for the position of the Cooper minimum and to estimate the magnitude of the cross section at the minimum. In addition, the x(E) data for Cs were used to gain information about the spin polarization of photoelectrons in a Fano-type polarized electron source. Finally, extrapolation of x(E) for cesium into the discrete spectrum indicated the existence of a pole in the function ?(E) which corresponds to the doublet line-strength ratio ?(EnP)=S(nP32)S(nP12) at the discrete energies EnP. According to our extrapolation, the pole lies in the region of n=10 to 15, in agreement with the early spectroscopic work of Sambursky (1928) and Beutell (1939), whose measurements were discounted by later investigators.

G. Baum; M. S. Lubell; W. Raith

1972-03-01T23:59:59.000Z

10

A profound analysis of Rb2[PH] and Cs2[PH] and the role of [PH]2? ions during temperature-induced solid–solid phase transitions  

Science Journals Connector (OSTI)

Abstract The temperature-induced solid–solid transformation of Rb2[PH] and Cs2[PH] is characterized from both experiment and theory. Neutron diffraction, IR-spectroscopy and ab-initio molecular dynamics simulations reveal an asymmetric shift of the lattice constants at 80 K. The molecular mechanism of the structural transformation as identified from IR-spectroscopy and ab-initio molecular dynamics simulations is closely connected to the orientation of the [PH]2? moieties which undergo a partial order–disorder phase transition.

M. Somer; H.G.v. Schnering; O. Hochrein; D. Zahn

2014-01-01T23:59:59.000Z

11

The AFeO{sub 2} (A=K, Rb and Cs) family: A comparative study of structures and structural phase transitions  

SciTech Connect

Structures and phase transitions for the isostructural series of compounds KFeO{sub 2}, RbFeO{sub 2} and CsFeO{sub 2} have been systematically studied by synchrotron X-ray high resolution powder diffraction experiments and in case of CsFeO{sub 2} also by single crystal diffractometry. At room temperature, all of the three compounds crystallize in the orthorhombic (Pbca) KGaO{sub 2} type of structure consisting of a three dimensional network of corner-sharing [FeO{sub 4/2}]{sup -} tetrahedra, which at elevated temperatures shows a reversible phase transformation to a cubic structure (space group Fd3-barm). For KFeO{sub 2}, RbFeO{sub 2} and CsFeO{sub 2} this phase transformation takes place at 1003 K, 737 K and 350 K respectively, as confirmed by differential scanning calorimetry and X-ray diffraction. Upon heating through the transitions the major structural changes are driven by the onset or enhancement of librational motion of the FeO{sub 4} tetrahedra. Due to this phenomenon the Fe-O-Fe bonds appear to step-wise getting straight, seemingly approaching 180 deg. within the time and space averaged structure. - Graphical abstract: Reciprocal layer hk0 for the orthorhombic room temperature phase, with pseudo cubic symmetry due to twinning, and the cubic high temperature phase of CsFeO{sub 2}. Upon heating the major structural changes are driven by the enhancement of librational motion of the [FeO{sub 4/2}]{sup -} corner-sharing tetrahedra, a phenomenon related to the high/low phase transition of cristobalite.

Ali, Naveed Zafar; Nuss, Juergen [Max-Planck-Institut fuer Festkoerperforschung, Heisenbergstrasse 1, D-70569 Stuttgart (Germany); Sheptyakov, Denis [Laboratory for Neutron Scattering, ETH Zurich and PSI Villigen, CH-5232 Villigen PSI (Switzerland); Jansen, Martin, E-mail: m.jansen@fkf.mpg.d [Max-Planck-Institut fuer Festkoerperforschung, Heisenbergstrasse 1, D-70569 Stuttgart (Germany)

2010-03-15T23:59:59.000Z

12

{sup 129}Xe-Cs (D{sub 1},D{sub 2}) versus {sup 129}Xe-Rb (D{sub 1}) spin-exchange optical pumping at high xenon densities using high-power laser diode arrays  

SciTech Connect

We investigate {sup 129}Xe-Cs (D{sub 1},D{sub 2}) spin exchange optical pumping (SEOP) at high Xe densities ({approx}0.12-2.44 amagat) using newly available high-power (>40 W) laser diode arrays and compare with {sup 129}Xe-Rb D{sub 1} SEOP under similar conditions. At elevated Xe densities, the spin-exchange rate (per alkali-metal atom, {gamma}{sup '}) for Cs-{sup 129}Xe is {approx}1.5-fold greater than that for Rb-{sup 129}Xe. Higher spin-exchange rates and lower {sup 129}Xe spin-destruction rates for Cs-{sup 129}Xe versus Rb-{sup 129}Xe contribute to {approx}twofold improvement in {sup 129}Xe nuclear spin polarization measured at 9.4 T - with the largest gains observed at the highest Xe densities.

Whiting, Nicholas; Eschmann, Neil A.; Goodson, Boyd M.; Barlow, Michael J. [Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, Illinois 62901 (United States); Sir Peter Mansfield Magnetic Resonance Centre, University of Nottingham, Nottingham, NG7 2RD (United Kingdom)

2011-05-15T23:59:59.000Z

13

Parity nonconservation in Fr-like actinide and Cs-like rare-earth-metal ions  

Science Journals Connector (OSTI)

Parity-nonconservation (PNC) amplitudes are calculated for the 7s-6d3/2 transitions of the francium isoelectronic sequence (Fr, Ra+, Ac2+, Th3+, Pa4+, U5+, and Np6+) and for the 6s-5d3/2 transitions of the cesium isoelectronic sequence (Cs, Ba+, La2+, Ce3+, and Pr4+). We show in particular that isotopes of La2+, Ac2+, and Th3+ ions have strong potential in the search for new physics beyond the standard model: The PNC amplitudes are large, the calculations are accurate, and the nuclei are practically stable. In addition, 232Th3+ ions have recently been trapped and cooled [Campbell et al., Phys. Rev. Lett. 102, 233004 (2009)]. We also extend previous works by calculating the s-s PNC transitions in Ra+ and Ba+ and provide calculations of several energy levels, and electric dipole and quadrupole transition amplitudes for the Fr-like actinide ions.

B. M. Roberts; V. A. Dzuba; V. V. Flambaum

2013-07-15T23:59:59.000Z

14

Ion mobility and phase transitions in heptafluorodiantimonates(III) Cs(1?x)(NH4)xSb2F7 and K0.4Rb0.6Sb2F7 according to NMR and DSC data  

Science Journals Connector (OSTI)

Abstract Ion mobility and phase transitions in heptafluorodiantimonates(III) Cs1?x(NH4)xSb2F7 (x = 0.2; 0.6) and K0.4Rb0.6Sb2F7 were studied by the 19F, 1H NMR and DSC. The character of ionic motions in fluoride and ammonium sublattices with temperature variations was investigated. Types of ion motions and temperature ranges in which they are observed were determined. It was found that the predominant form of ionic motions in high-temperature modifications is a diffusion of fluorine atoms, whereas the number of diffusing ammonium ions depends on the sample composition. The observed phase transitions in heptafluorodiantimonates(III) of cesium–ammonium and potassium–rubidium with a formation of high-temperature modifications are transitions into a superionic state (? > 10?3 S/cm above 450 K).

V.Ya. Kavun; M.M. Polyantsev; L.A. Zemnukhova; A.B. Slobodyuk; V.I. Sergienko

2014-01-01T23:59:59.000Z

15

Calculations of parity-nonconserving s-d amplitudes in Cs, Fr, Ba+, and Ra+  

Science Journals Connector (OSTI)

We have performed ab initio mixed-states and sum-over-states calculations of parity-nonconserving (PNC) electric dipole (E1) transition amplitudes between s-d electron states of Cs, Fr, Ba+, and Ra+. For the lower states of these atoms we have also calculated energies, E1 transition amplitudes, and lifetimes. We have shown that PNC E1 amplitudes between s-d states can be calculated to high accuracy. Contrary to the Cs 6s-7s transition, in these transitions there are no strong cancellations between different terms in the sum-over-states approach. In fact, there is one dominating term which deviates from the sum by less than 20%. This term corresponds to an s-p1/2 weak matrix element, which can be calculated with an accuracy of better than 1%, and a p1/2-d3/2 E1 transition amplitude, which can be measured. Also, the s-d amplitudes are about four times larger than the corresponding s-s amplitudes. We have shown that by using a hybrid mixed-states–sum-over-states approach the accuracy of the calculations of PNC s-d amplitudes could compete with that of Cs 6s-7s if p1/2-d3/2 E1 amplitudes are measured to high accuracy.

V. A. Dzuba; V. V. Flambaum; J. S. M. Ginges

2001-05-08T23:59:59.000Z

16

Quantum electrodynamics corrections to energies, transition amplitudes, and parity nonconservation in Rb, Cs, Ba+, Tl, Fr, and Ra+  

Science Journals Connector (OSTI)

We use the previously developed radiative potential method to calculate quantum electrodynamic (QED) corrections to energy levels and electric dipole transition amplitudes for atoms which are used for the study of the parity nonconservation (PNC) in atoms. The QED shift in energies and dipole amplitudes leads to noticeable change in the PNC amplitudes. This study compliments the previously considered QED corrections to the weak matrix elements. We demonstrate that the QED corrections due to the change in energies and dipole matrix elements are comparable in value to those due to the change in weak matrix elements and therefore must be included.

B. M. Roberts; V. A. Dzuba; V. V. Flambaum

2013-05-13T23:59:59.000Z

17

Structural and conductivity studies of CsKSO{sub 4}Te(OH){sub 6} and Rb{sub 1.25}K{sub 0.75}SO{sub 4}Te(OH){sub 6} materials  

SciTech Connect

The crystal structures of the title compounds were solved using the single-crystal X-ray diffraction technique. At room temperature CsKSO{sub 4}Te(OH){sub 6} was found to crystallize in the monoclinic system with Pn space group and lattice parameters: a=12.5463(6)A; b=6.5765(2)A; c=12.6916(7)A; {beta}=106.53(2){sup o}; V=1003.914(4)A{sup 3}; Z=4 and D{sub calc.}=3.29g/cm{sup 3}. The structural refinement has led to a reliability factor of R{sub 1}=0.0284 (wR{sub 2}=0.064) for 7577 independent reflections. Rb{sub 1.25}K{sub 0.75}SO{sub 4}Te(OH){sub 6} material possesses a monoclinic structure with space group P2{sub 1}/a and cell parameters: a=11.3411(6)A; b=6.5819(2)A; c=13.5730(8)A; {beta}=106.860(10){sup o}; V=969.62(10)A{sup 3}; Z=4 and D=3.16(3)g/cm{sup 3}. The residuals are R{sub 1}=0.0297 and wR{sub 2}=0.0776 for 3336 independent reflections. The main interest of these structures is the presence of two different and independent anionic groups (TeO{sub 6}{sup 6-} and SO{sub 4}{sup 2-}) in the same crystal. Complex impedance measurements (Z*=Z{sup '}-iZ{sup '}') have been undertaken in the frequency and temperature ranges 20-10{sup 6}Hz and 400-600K, respectively. The dielectric relaxation is studied in the complex modulus formalism M*.

Chabchoub, N. [Laboratoire de Physique Appliquee, Faculte des Sciences de Sfax, 3018 Sfax (Tunisia)]. E-mail: nizar_chabchoub@yahoo.fr; Darriet, J. [Institut de Chimie de la Matiere Condensee de Bordeaux, ICMCB-CNRS, 33608 Pessac cedex (France); Khemakhem, H. [Laboratoire de Physique Appliquee, Faculte des Sciences de Sfax, 3018 Sfax (Tunisia)

2006-07-15T23:59:59.000Z

18

Cold collisions of Rb and Cs atoms  

E-Print Network (OSTI)

Jamieson,M.J. Sarbazi-Azad,H. 18'th International Conference on Atomic Physics, MIT, Cambridge, MA, USA Academic Press

Jamieson, M.J.

19

New hypodiphosphates of the alkali metals: Synthesis, crystal structure and vibrational spectra of the hypodiphosphates(IV) M{sub 2}[(H{sub 2}P{sub 2}O{sub 6})(H{sub 4}P{sub 2}O{sub 6})] (M=Rb and Cs)  

SciTech Connect

The new hypodiphosphates(IV) Rb{sub 2}[(H{sub 2}P{sub 2}O{sub 6})(H{sub 4}P{sub 2}O{sub 6})] (1) and Cs{sub 2}[(H{sub 2}P{sub 2}O{sub 6})(H{sub 4}P{sub 2}O{sub 6})] (2) were synthesized by soft chemistry reactions from aqueous solutions of hypophosphoric acid and the corresponding heavy alkali-metal carbonates. Their crystal structures were determined by single crystal X-ray diffraction. Both compounds crystallize isotypic in the triclinic space group P-1 with one formula unit in the unit cell. The structures are built up by discrete (H{sub 2}P{sub 2}O{sub 6}){sup 2-} and (H{sub 4}P{sub 2}O{sub 6}) units in staggered conformation for the P{sub 2}O{sub 6} skeleton and the corresponding alkali-metal cations. In the (H{sub 2}P{sub 2}O{sub 6}){sup 2-} ion the hydrogen atoms are in a 'trans-trans' conformation. O{center_dot}H-O hydrogen bonds between the (H{sub 2}P{sub 2}O{sub 6}){sup 2-} and (H{sub 4}P{sub 2}O{sub 6}) groups consolidate the structures into a three-dimensional network. The FT-Raman and {sup 31}P and {sup 1}H and MAS NMR spectra of the title compounds have been recorded and interpreted, especially with respect to their assignment to the (H{sub 2}P{sub 2}O{sub 6}){sup 2-} and (H{sub 4}P{sub 2}O{sub 6}) groups. Thermogravimetric data of 2 have been interpreted in terms of a thermal decomposition model. - Graphical Abstract: The layered compounds Rb{sub 2}[(H{sub 2}P{sub 2}O{sub 6})(H{sub 4}P{sub 2}O{sub 6})] and Cs{sub 2}[(H{sub 2}P{sub 2}O{sub 6})(H{sub 4}P{sub 2}O{sub 6})] have been synthesized and investigated. Both crystallize isotypic. The structures are built up by discrete (H{sub 2}P{sub 2}O{sub 6}){sup 2-} and (H{sub 4}P{sub 2}O{sub 6}) units and the corresponding alkali-metal cations. Highlights: Black-Right-Pointing-Pointer Synthesis and single-crystal structure of new alkali hypodiphosphates. Black-Right-Pointing-Pointer Structures are characterized by [(H{sub 2}P{sub 2}O{sub 6})(H{sub 4}P{sub 2}O{sub 6})]{sup 2-} units and M{sup +} cations. Black-Right-Pointing-Pointer (H{sub 2}P{sub 2}O{sub 6}){sup 2-} and (H{sub 4}P{sub 2}O{sub 6}) units are linked by short hydrogen bonds. Black-Right-Pointing-Pointer Both compounds are characterized by {sup 31}P MAS-NMR spectra.

Wu, Peng [Institut fuer Anorganische und Analytische Chemie der TU Clausthal, Paul-Ernst-Strasse 4, D-38678 Clausthal-Zellerfeld (Germany)] [Institut fuer Anorganische und Analytische Chemie der TU Clausthal, Paul-Ernst-Strasse 4, D-38678 Clausthal-Zellerfeld (Germany); Wiegand, Thomas; Eckert, Hellmut [Institut fuer Physikalische Chemie and Graduate School of Chemistry, Westfaelische Wilhelms-Universitaet Muenster, Corrensstr. 28/30, D-48149 Muenster (Germany)] [Institut fuer Physikalische Chemie and Graduate School of Chemistry, Westfaelische Wilhelms-Universitaet Muenster, Corrensstr. 28/30, D-48149 Muenster (Germany); Gjikaj, Mimoza, E-mail: mimoza.gjikaj@tu-clausthal.de [Institut fuer Anorganische und Analytische Chemie der TU Clausthal, Paul-Ernst-Strasse 4, D-38678 Clausthal-Zellerfeld (Germany)] [Institut fuer Anorganische und Analytische Chemie der TU Clausthal, Paul-Ernst-Strasse 4, D-38678 Clausthal-Zellerfeld (Germany)

2012-10-15T23:59:59.000Z

20

Near-yrast, medium-spin, excited states of {sup 91}Rb, {sup 93}Rb, and {sup 95}Rb  

SciTech Connect

The medium-spin structure of the nuclei {sup 93}Rb and {sup 95}Rb is studied following the neutron-induced fission of {sup 235}U at the PF1B neutron guide, using the FIFI spectrometer, and at the Lohengrin mass spectrometer of the Institut Laue-Langevin Grenoble. These nuclei, plus {sup 91}Rb, are also studied following the spontaneous fission of {sup 248}Cm and {sup 252}Cf sources, using the EUROGAM-II and Gammasphere detector arrays, respectively. A high-spin isomeric state, with a half-life of 111(11) ns, is found in {sup 93}Rb at an excitation energy of 4422.4 keV, which most likely corresponds to the fully aligned [{pi}(g{sub 9/2}) x {nu}(g{sub 7/2}h{sub 11/2})]{sub 27/2}{sup -} configuration. An analogous configuration is proposed for the 5297.9-keV level observed in {sup 91}Rb. A new E3 decay branch of the 1133.9-keV isomer in {sup 91}Rb is found, for which the rather low transition rate of B(E3)=3.8(10) W.u. is determined. The energy of the isomeric state of {sup 95}Rb is now proposed to be at 810.6 keV, with a spin of (9/2{sup +}), and its half-life determined to be T{sub 1/2}=94(7) ns. A cascade of prompt transitions is observed on top of the 810.6-keV isomer in {sup 95}Rb. The near-yrast structures of {sup 91}Rb, {sup 93}Rb, and {sup 95}Rb are compared to the results of shell-model calculations, which support the proposed 27/2{sup -} interpretation of states in {sup 91}Rb and {sup 93}Rb. An analogous 27/2{sup -} state is expected to occur in {sup 95}Rb, as a long-lived isomer at 3.24 MeV. No such isomeric decay could be observed in a measurement using the Lohengrin spectrometer, which shows that, if it exists, its population, following the fission of {sup 235}U, is at least four times lower than that of the analogous 27/2{sup -} isomer in {sup 97}Y.

Simpson, G. S. [LPSC, Universite Joseph Fourier Grenoble 1, CNRS/IN2P3, Institut National Polytechnique de Grenoble, F-38026 Grenoble Cedex (France); Urban, W. [Institut Laue-Langevin, 6 rue J. Horowitz, F-38042 Grenoble (France); Faculty of Physics, University of Warsaw, ul. Hoza 69, PL-00-681 Warsaw (Poland); Sieja, K. [Institute Pluridisciplinaire Hubert Curien, 23 rue du Loess, 67037 Strasbourg Cedex (France); Dare, J. A.; Orlandi, R.; Smith, A. G.; Tsekhanovich, I.; Varley, B. J.; Durell, J. L.; Smith, J. F. [Department of Physics and Astronomy, University of Manchester, M13 9PL Manchester (United Kingdom); Jolie, J.; Linneman, A. [Institut fuer Kernphysik, Universitaet zu Koeln, Zuelpicherstr. 77, D-50937 Koeln (Germany); Scherillo, A. [Rutherford Appleton Laboratory, Chilton, Didcot OX11 0QX (United Kingdom); Soldner, T.; Faust, H. [Institut Laue-Langevin, 6 rue J. Horowitz, F-38042 Grenoble (France); Zlomaniec, A.; Rzaca-Urban, T. [Faculty of Physics, University of Warsaw, ul. Hoza 69, PL-00-681 Warsaw (Poland); Ahmad, I.; Greene, J. P. [Argonne National Laboratory, Argonne, Illinois 60439 (United States)

2010-08-15T23:59:59.000Z

Note: This page contains sample records for the topic "rb cs fr" 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

The RB Language Jonathan M. Smith  

E-Print Network (OSTI)

­­ ­­ The RB Language Jonathan M. Smith Distributed Systems Laboratory Department of Computer of an attempt to generate more practical examples of the scheme described by Smith and Maguire for ``competitive

22

Two spatially separated phases in semiconducting Rb0.8Fe1.5S2  

SciTech Connect

We report neutron scattering and transport measurements on semiconducting Rb0.8Fe1.5S2, a compound isostructural and isoelectronic to the well-studied A0.8FeySe2(A = K, Rb, Cs, Tl/K) superconducting systems. Both resistivity and dc susceptibility measurements reveal a magnetic phase transition at T = 275 K. Neutron diffraction studies show that the 275 K transition originates from a phase with rhombic iron vacancy order which exhibits an in-plane stripe antiferromagnetic ordering below 275 K. In addition, the stripe antiferromagnetic phase interdigitates mesoscopically with an ubiquitous phase with 5 5 iron vacancy order. This phase has a magnetic transition at TN = 425 K and an iron vacancy order-disorder transition at TS = 600 K. These two different structural phases are closely similar to those observed in the isomorphous Se materials. Based on the close similarities of the in-plane antiferromagnetic structures, moments sizes, and ordering temperatures in semiconducting Rb0.8Fe1.5S2 and K0.81Fe1.58Se2, we argue that the in-plane antiferromagnetic order arises from strong coupling between local moments. Superconductivity, previously observed in the A0.8FeySe2 zSz system, is absent in Rb0.8Fe1.5S2, which has a semiconducting ground state. The implied relationship between stripe and block antiferromagnetism and superconductivity in these materials as well as a strategy for further investigation is discussed in this paper.

Wang, Meng [University of California, Berkeley; Tian, Wei [ORNL; Valdivia, P. [University of California, Berkeley; Chi, Songxue [ORNL; Bourret-Courchesne, E. D. [Lawrence Berkeley National Laboratory (LBNL); Dai, Pengcheng [Rice University; Birgeneau, R. J. [University of California, Berkeley

2014-01-01T23:59:59.000Z

23

Improving CS regulations.  

SciTech Connect

President Carter issued Executive Order 12044 (3/28/78) that required all Federal agencies to distinguish between significant and insignificant regulations, and to determine whether a regulation will result in major impacts. This study gathered information on the impact of the order and the guidelines on the Office of Conservation and Solar Energy (CS) regulatory practices, investigated problems encountered by the CS staff when implementing the order and guidelines, and recommended solutions to resolve these problems. Major tasks accomplished and discussed are: (1) legislation, Executive Orders, and DOE Memoranda concerning Federal administrative procedures relevant to the development and analysis of regulations within CS reviewed; (2) relevant DOE Orders and Memoranda analyzed and key DOE and CS staff interviewed in order to accurately describe the current CS regulatory process; (3) DOE staff from the Office of the General Counsel, the Office of Policy and Evaluation, the Office of the Environment, and the Office of the Secretary interviewed to explore issues and problems encountered with current CS regulatory practices; (4) the regulatory processes at five other Federal agencies reviewed in order to see how other agencies have approached the regulatory process, dealt with specific regulatory problems, and responded to the Executive Order; and (5) based on the results of the preceding four tasks, recommendations for potential solutions to the CS regulatory problems developed. (MCW)

Nesse, R.J.; Scheer, R.M.; Marasco, A.L.; Furey, R.

1980-10-01T23:59:59.000Z

24

CS 4317 Human-Computer Interaction Course Number: CS4317  

E-Print Network (OSTI)

interaction. Theory of human-computer interaction. Development methods for interfaces such as user1 CS 4317 Human-Computer Interaction Course Number: CS4317 Course Title: Human-Computer Interaction Course Instructors Nigel Ward Course Description: CS4317: Models and methods of human-computer

Ward, Karen

25

Spin Waves and magnetic exchange interactions in insulating Rb0.89Fe1.58Se2  

SciTech Connect

The parent compounds of iron pnictide superconductors are bad metals with a collinear antiferromagnetic structure and Neel temperatures below 220 K. Although alkaline iron selenide A{sub y}Fe{sub 1.6+x}Se{sub 2} (A = K, Rb, Cs) superconductors are isostructural with iron pnictides, in the vicinity of the undoped limit they are insulators, forming a block antiferromagnetic order and having Neel temperatures of roughly 500 K. Here we show that the spin waves of the insulating antiferromagnet Rb{sub 0.89}Fe{sub 1.58}Se{sub 2} can be accurately described by a local moment Heisenberg Hamiltonian. A fitting analysis of the spin wave spectra reveals that the next-nearest neighbour couplings in Rb{sub 0.89}Fe{sub 1.58}Se{sub 2}, (Ba,Ca,Sr)Fe{sub 2}As{sub 2}, and Fe{sub 1.05}Te are of similar magnitude. Our results suggest a common origin for the magnetism of all the Fe-based superconductors, despite having different ground states and antiferromagnetic orderings.

Wang, Miaoyin [ORNL; Fang, Chen [Purdue University; Yao, Dao-Xin [unknown; Tan, Guotai [ORNL; Harriger, Leland W [ORNL; Song, Yu [ORNL; Netherton, Tucker J [ORNL; Zhang, Chenglin [ORNL; Wang, Meng [ORNL; Stone, Matthew B [ORNL; Tian, Wei [Ames Laboratory and Iowa State University; Hu, Jiangping [Purdue University and Chinese Academy of Sciences; Dai, Pengcheng [University of Tennessee, Knoxville (UTK)

2011-01-01T23:59:59.000Z

26

-The Core of CS -Curricula  

E-Print Network (OSTI)

- Advanced Courses #12;The Core of CS Curricula #12;CS Body of Knowledge Area > Unit > Topic Core vs elective#12;ACM vs U S I #12;- The Core of CS - Curricula - Introductory Courses - Intermediate Courses Introductory Intermediate Advanced Core Elective Units #12;Courses Introductory Intermediate Advanced Core

Hauswirth, Matthias

27

A New Rb Lamp Exciter Circuit for Rb atomic clocks and Studies on Transition from Ring to Red mode  

E-Print Network (OSTI)

In this paper we describe the development of novel RF exciter circuit for electrode less Rb lamp. The lamp exciter circuit is a RF oscillator with a a new configuration operating at 60 to 65 MHz frequency with 3 to 4 watt power. The Rb lamp is used in exciting the ground state hyperfine transitions in Rb atom in a glass cell placed inside a tuned microwave cavity, As the frequency of these hyperfine transitions is very stable it is used in the development of Rb atomic clock by phase locking the oven controlled crystal oscillator (OCXO) to this atomic transition frequency. The details of the Rb lamp exciter are presented in the paper.The Lamp is ideally operated in ring mode as in this mode the linewidth is narrow and there is no self reversal. However, high temperature and RF excitation power may drive the Rb lamp to red mode which gives rise to line broadening and self reversal. It is the experience that mode change from ring to red deteriorates the atomic signal strength and S/N. In this paper the reasons of mode change are also discussed.

Savita Singh; Bikash Ghosal; G M Saxena

2010-11-10T23:59:59.000Z

28

CRITICALITY SAFETY (CS)  

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

Objective CS.1 - A criticality safety program is established, sufficient numbers of qualified personnel are provided, and adequate facilities and equipment are available to ensure criticality safety support services are adequate for safe operations. (Core Requirements 1, 2, and 6) Criteria * Functions, assignments, responsibilities, and reporting relationships are clearly defined, understood, and effectively implemented. * Operations support personnel for the criticality safety area are adequately staffed and trained. Approach Record Review: Review the documentation that establishes the Criticality Safety Requirements (CSRs) for appropriateness and completeness. Review for adequacy and completion the criticality safety personnel training records that indicate training on facility procedures and systems under

29

CRITICALITY SAFETY (CS)  

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

OBJECTIVE CS.1 The LANL criticality safety program provides the required technical guidance and oversight capabilities to ensure a comprehensive criticality safety program for the storage of nuclear materials in SSTs. (Core Requirements 3, 4, 8) Criteria * The Criticality Safety Program is an administrative TSR and meets the General and * Specific Requirements of DOE O 420.1A, Section 4.3 Nuclear Criticality Safety. * All processes and operations involving significant quantities of fissile materials are * described in current procedures approved by line management. * Procedures contain approved criticality controls and limits, based on HSR-6 evaluations and recommendations. * Supervisors, operations personnel, and criticality safety officers have received

30

Spring 2006 CS 649 1 Sensor Networks  

E-Print Network (OSTI)

· Execution engine for scripting language · Code size #12;Programming Wireless Sensors Spring 2006 CS 649 3Spring 2006 CS 649 1 CS649 Sensor Networks Lecture 25: Reprogramming Andreas Terzis http://hinrg.cs.jhu.edu/wsn06/ #12;Outline Spring 2006 CS 649 2 · Problem: Reprogram the network after it is deployed

Amir, Yair

31

Precise Measurement of Strontium-82 Radioactivity in the Sr-Rb...  

Office of Science (SC) Website

by extracting it from an 82Sr-82Rb generator. Much as a battery is used to store electricity, the radioactive 82Sr with its long 25.35 days half-life serves as an "82Rb...

32

Contrle structural du partage de Rb entre fluide et micas potassiques dans les pegmatites du Brsil  

E-Print Network (OSTI)

and spodumene' [2 and 5], rich in Rb, Li, Ta and Sn, and comparable to the Greenbushes Pegmatites of Australia

Boyer, Edmond

33

Rechnerarchitekturen und Betriebssysteme (CS201)  

E-Print Network (OSTI)

-471-26272-2 Uebungen: Labor-Stil (Elektronikkasten, Sensor µ-Prozessoren wie "Berkeley Motes", Arduino, Lego Mindstorm Raspberry Pi ($ 35), Arduino, Projekt Microduino . . . c Christian Tschudin CS201 ­ Rechnerarchitekturen und

Vetter, Thomas

34

CAES MaCS Home  

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

is largely made possible through its partnership with the Advanced Test Reactor National Scientific User Facility (ATR NSUF). MaCS is complementary to the Boise State Center for...

35

Why students drop out CS1 course?  

Science Journals Connector (OSTI)

This study focuses on CS minor students' decisions to drop out from the CS1 course. The high level of drop out percentage has been a problem at Helsinki University of Technology for many years. This course has yearly enrolment of 500-600 students and ... Keywords: CS1, drop out reasons, non-major CS students

Päivi Kinnunen; Lauri Malmi

2006-09-01T23:59:59.000Z

36

Rb-Sr Geochronologic Investigation Of Precambrian Samples From Deep  

Open Energy Info (EERE)

Rb-Sr Geochronologic Investigation Of Precambrian Samples From Deep Rb-Sr Geochronologic Investigation Of Precambrian Samples From Deep Geothermal Drill Holes, Fenton Hill, New Mexico Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Rb-Sr Geochronologic Investigation Of Precambrian Samples From Deep Geothermal Drill Holes, Fenton Hill, New Mexico Details Activities (2) Areas (1) Regions (0) Abstract: Analyses of twenty-six gneissic whole rocks from the depth range 732-2588 m in drill hole GT-2 yield a 1.62 ± 0.04 b.y. isochron age with initial 86Sr/86Sr (Ro) = 0.7067 ± 0.0014; this age is in agreement with radiometric ages reported for rocks elsewhere in north-central New Mexico. A preliminary isochron age of 1.92 ± 0.18 b.y. with Ro = 7014 ± 0.0025 from the nearby drill hole GT-1 is defined by eight samples. Because these

37

Ts&Cs FP  

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

6/14/11 6/14/11 Page 1 of 17 Printed copies of this document are uncontrolled. Retrieve latest version electronically. SANDIA CORPORATION SF 6432-FP (06/14/11) Section II STANDARD TERMS AND CONDITIONS FOR FIRM-FIXED PRICE CONTRACTS THE FOLLOWING CLAUSES APPLY TO THIS CONTRACT AS INDICATED UNLESS SPECIFICALLY DELETED, OR EXCEPT TO THE EXTENT THEY ARE SPECIFICALLY SUPPLEMENTED OR AMENDED IN WRITING IN THE COVER PAGE OR SECTION I. FP01 - ACCEPTANCE OF TERMS AND CONDITIONS (Ts&Cs) Contractor, by signing this contract and/or delivering items or services ordered under this contract, agrees to comply with all the Ts&Cs and all specifications and other documents that this contract incorporated by reference or attachment. Sandia hereby objects to any Ts&Cs contained in any acknowledgment of this contract

38

09/15/2011! CS4961! CS4961 Parallel Programming  

E-Print Network (OSTI)

.out ·Note that editing on water is somewhat primitive ­ I'm using vim. Apparently, you can edit on CADE machines and just run on water. Or you can try vim, too. 09/15/2011! CS4961! 4! #12;9/15/11 2 Today

Hall, Mary W.

39

SF6432-CS Commercial Services  

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

7/31/13 7/31/13 Page 1 of 18 Printed copies of this document are uncontrolled. Retrieve latest version electronically. SANDIA CORPORATION SF 6432-CS (07/2013) SECTION II STANDARD TERMS AND CONDITIONS FOR COMMERCIAL SERVICES THE FOLLOWING CLAUSES APPLY TO THIS CONTRACT AS INDICATED UNLESS SPECIFICALLY DELETED, OR EXCEPT TO THE EXTENT THEY ARE SPECIFICALLY SUPPLEMENTED OR AMENDED IN WRITING IN THE COVER PAGE OR SECTION I. (CTRL+CLICK ON A LINK BELOW TO ADVANCE DIRECTLY TO THAT SECTION) ACCEPTANCE OF TERMS AND CONDITIONS (Ts&Cs) APPLICABLE LAW ASSIGNMENT BANKRUPTCY CANCELLATION OR TERMINATION FOR CONVENIENCE CHANGES COMPLIANCE WITH LAWS DEFINITIONS DISPUTES EXCUSABLE DELAYS EXPORT CONTROL ORDER OF PRECEDENCE PAYMENT PERFORMANCE EVALUATION PROGRAM

40

Reactive barriers for {sup 137}Cs retention  

SciTech Connect

{sup 137}Cs was dispersed globally by cold war activities and, more recently, by the Chernobyl accident. Engineered extraction of {sup 137}Cs from soils and groundwaters is exceedingly difficult. Because the half life of {sup 137}Cs is only 30.2 years, remediation might be more effective (and less costly) if {sup 137}Cs bioavailability could be demonstrably limited for even a few decades by use of a reactive barrier. Essentially permanent isolation must be demonstrated in those few settings where high nuclear level wastes contaminated the environment with {sup 135}Cs (half life 2.3x10{sup 6} years) in addition to {sup 137}Cs. Clays are potentially a low-cost barrier to Cs movement, though their long-term effectiveness remains untested. To identify optimal clays for Cs retention Cs resorption was measured for five common clays: Wyoming Montmorillonite (SWy-1), Georgia Kaolinites (KGa-1 and KGa-2), Fithian Illite (F-Ill), and K-Metabentonite (K-Mbt). Exchange sites were pre-saturated with 0.16 M CsCl for 14 days and readily exchangeable Cs was removed by a series of LiNO{sub 3} and LiCl washes. Washed clay were then placed into dialysis bags and the Cs release to the deionized water outside the bags measured. Release rates from 75 to 139 days for SWy-1, K-Mbt and F- 111 were similar; 0.017 to 0.021% sorbed Cs released per day. Both kaolinites released Cs more rapidly (0.12 to 0.05% of the sorbed Cs per day). In a second set of experiments, clays were doped for 110 days and subjected to an extreme and prolonged rinsing process. All the clays exhibited some capacity for irreversible Cs uptake so most soils have some limited ability to act as a natural barrier to Cs migration. However, the residual loading was greatest on K-Mbt ({approximately} 0.33 wt% Cs). Thus, this clay would be the optimal material for constructing artificial reactive barriers.

KRUMHANSL,JAMES L.; BRADY,PATRICK V.; ANDERSON,HOWARD L.

2000-05-19T23:59:59.000Z

Note: This page contains sample records for the topic "rb cs fr" 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

Development of Composite Adsorbents for LLW Treatment and Their Adsorption Properties for Cs and Sr - 13127  

SciTech Connect

In this study, the composite adsorbents (KCoFC-NM (NM: natural mordenite), KCoFC-SG (SG: porous silica gel), AMP-SG and so on) were prepared by impregnation-precipitation methods. As for the distribution properties, the largest K{sub d,Cs} value of 3.8 x 10{sup 4} cm{sup 3}/g was obtained for KCoFC-SG (Davi.) composite. KCoFC-SG (NH, MB5D) and T-KCFC also had relatively large K{sub d,Cs} values above 1.0 x 10{sup 4} cm{sup 3}/g. The uptake rate of Cs{sup +} ions was examined by batch method. KCoFC-SG (NH, MB5D) and AMP-SG (Davi.) had relatively large uptake rate of Cs{sup +}, and the uptake attained equilibrium within 1 h. The maximum uptake capacity of Cs{sup +} ions was estimated to be above 0.5 mmol/g for KCoFC-NM and KCoFC-CP composites. KCoFC-X composite had a relatively large uptake capacity of Cs{sup +} ions (0.23 mmol/g > 0.17 mmol/g (T-KCFC)) and this composite also had a selectivity towards Sr{sup 2+} ions; KCoFC-X is effective adsorbent for both Cs{sup +} and Sr{sup 2+} ions. The largest value of K{sub d,Sr} was estimated to be 218 cm{sup 3}/g for titanic acid-PAN. Titanic acid-PAN had the largest uptake rate of Sr{sup 2+} ions, and the uptake attained equilibrium within 8 h. Adsorbability of other nuclides was further examined by batch method. All adsorbents had adsorbability for Rb{sup +} and RuNO{sup 3+} ions. KCoFC-SG (NH), KCoFC-CP and T-KCFC had higher selectivity towards Cs{sup +} than other adsorbents; these adsorbents had adsorbability to Cs{sup +} ions even in the presence of Ba{sup 2+}, Ca{sup 2+} and Mg{sup 2+} ions. The separation factor of K{sub d,Sr}/K{sub d,Ba} for titanic acid-PAN was about 1, indicating that the K{sub d,Sr} for titanic acid-PAN tends to decrease with Ba{sup 2+} concentration. As for the breakthrough properties, the largest 5 % breakpoint and 5 % breakthrough capacity of Cs{sup +} ions were estimated to be 47.1 cm{sup 3} and 0.07 mmol/g for the column of KCoFC-SG (NH), respectively. The order of 5 % breakthrough capacity of Cs{sup +} is as follows; KCoFC-SG (NH) > KCoFC-NM > KCoFC-SG (Q-10) > T-KCFC > KCoFC-X > KCoFC-CP. From the results of batch and column experiments, the composite adsorbent of KCoFC-SG (NH) was effective for the uptake of Cs{sup +} ions, and KCoFC-X composite was useful for the uptake of both Cs{sup +} and Sr{sup 2+} ions. The estimation of irradiation stability and the uptake properties using the actual wastes are further essential for the practical operation. (authors)

Susa, Shunsuke; Mimura, Hitoshi [Dept. of Quantum Science and Energy Engineering, Graduate School of Engineering, Tohoku University, Aramaki-Aza-Aoba 6-6-01-2, Sendai, 980-8579 (Japan)] [Dept. of Quantum Science and Energy Engineering, Graduate School of Engineering, Tohoku University, Aramaki-Aza-Aoba 6-6-01-2, Sendai, 980-8579 (Japan); Ito, Yoshiyuki; Saito, Yasuo [Nuclear Science and Engineering Directorate, Japan Atomic Energy Agency, 2-4 Shirakata Shirone, Naka-gun, Ibaraki, 319-1195 (Japan)] [Nuclear Science and Engineering Directorate, Japan Atomic Energy Agency, 2-4 Shirakata Shirone, Naka-gun, Ibaraki, 319-1195 (Japan)

2013-07-01T23:59:59.000Z

42

Ts&Cs FP  

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

0-09) Title: Standard Terms and Conditions for 0-09) Title: Standard Terms and Conditions for Firm-Fixed Price Contracts Owner: Procurement Policy & Quality Dept Initial Release Date: 10/22/09 Page 1 of 16 PPQD-TMPLT-008R00 Template Release Date: 06/12/09 Printed copies of this document are uncontrolled. Before using a printed copy to perform work, verify the version against the electronic document to ensure you are using the correct version. SANDIA CORPORATION SF 6432-FP (10-09) Section II STANDARD TERMS AND CONDITIONS FOR FIRM-FIXED PRICE CONTRACTS THE FOLLOWING CLAUSES APPLY TO THIS CONTRACT AS INDICATED UNLESS SPECIFICALLY DELETED, OR EXCEPT TO THE EXTENT THEY ARE SPECIFICALLY SUPPLEMENTED OR AMENDED IN WRITING IN THE COVER PAGE OR SECTION I. FP01 - ACCEPTANCE OF TERMS AND CONDITIONS (Ts&Cs) Contractor, by

43

ARM STM Plenary: CS Report  

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

8 8 ARM Science Team Meeting 2008 Warren Wiscombe ARM Chief Scientist Brookhaven National Lab Mar 2008 ARM Plenary 2 ARM Chief Scientist Team ARM Chief Scientist Team Ric Cederwall Andy Vogelmann Sharon Zuhoski Yangang Liu Pavlos Kollias Mar 2008 ARM Plenary 3 Submit your... Submit your... science highlights (www.arm.gov) poster PDFs (esp if you win CS Design Award) feedback in text boxes on ARM web pages Also... vote for People's Choice Poster talk to our Thu morning speakers Mar 2008 ARM Plenary 4 Mar 2008 ARM Plenary 5 Existing Existing * CLOWD (Clouds with Low Optical Depth) * BBHRP (BroadBand Heating Rate Profile) * Radar Focus Groups Focus Groups New New * Vertical Velocity for Climate Modelers * Longwave/Microwave * Surface Fluxes Mar 2008 ARM Plenary 6 ARM ARM ' ' s s two fundamental science questions

44

CS348 Project 1 Oracle Project  

E-Print Network (OSTI)

CS348 Project 1 Oracle Project Due Date: 2/12/2009 You are going to use Oracle to design a simple; if nothing else, mark each query with its number. Turnin You may turn in the project for grading using the procedure described below. Run the following shell command (see 'man turnin' for details): turnin -c cs348

Elmagarmid, Ahmed K.

45

Levels of Rb93, Sr93, and Y93 fed in the decays of Kr93, Rb93, and Sr93  

Science Journals Connector (OSTI)

The ? rays and conversion electrons following the ?- decay of Kr93, Rb93, and Sr93 have been measured by applying on-line mass-separation techniques to U235 fission products. Level schemes for the three daughter nuclei are proposed based on the study of ?-singles, ??-coincidence, and internal-conversion electron spectra. Internal-conversion coefficients were determined for 10 transitions and the deduced multipolarities as well as logft values were combined with known reaction results to assign spins and parities. The half-life for the 758.63-KeV isomeric level in Y93 was measured to be 85 ± 15 msec.RADIOACTIVITY Kr93, Rb93, Sr93; measured E?, I?, ?? coin, ICC; deduced logft, ?. Ym93; measured T12. Rb93, Sr93, Y93; deduced levels, J, ?. On-line measurement, mass-separated U235 fission products.

E. Achterberg; F. C. Iglesias; A. E. Jech; J. A. Moragues; D. Otero; M. L. Pérez; A. N. Proto; J. J. Rossi; W. Scheuer

1974-12-01T23:59:59.000Z

46

Genetic analyses of the Rb and p53 genes in murine development and tumorigenesis  

E-Print Network (OSTI)

The RB and p53 genes play central roles in cell cycle and checkpoint control, apoptosis and many other biological processes. These are central tumor suppressor genes that are each inactivated in many human cancers. Mouse ...

MacPherson, David (David P.)

2005-01-01T23:59:59.000Z

47

Analytical study of optical pumping for the D1 line of 85Rb atoms  

Science Journals Connector (OSTI)

We present analytical solutions for the populations of the D1 transition line of 85Rb atoms. The time evolution of the populations of the magnetic sublevels in the excited state at the weak intensity limit exhibi...

Heung-Ryoul Noh

2014-06-01T23:59:59.000Z

48

Electronic structure of the Ge/RbF/GaAs(100) heterostructure: LCAO calculations  

Science Journals Connector (OSTI)

The electronic structure of Ge/RbF/GaAs(100) system ... known however about their reactivity. In these calculations the reactive contacts were postulated and modelled. ... obtained results, compared with those of...

Barbara Stankiewicz

49

Magnetic Properties of RB66 (R = Gd, Tb, Ho, Er, and Lu)  

SciTech Connect

We report magnetic susceptibility measurements of RB66 (R = Gd, Tb, Ho, Er, and Lu) boron-rich rare earth containing borides down to 50 mK. The data suggest a spin glass low temperature state for RB66 (R = Gd, Tb, Ho, and Er) with the freezing temperatures below 1 K. The magnetic properties appear to be influenced by the anisotropy of the magnetic moments, probably via the crystalline electric field effects.

Kim, Hyunsoo; Budko, Serguei; ATanatar, Makariy; Avdashchenko, D.V.; Matovnikov, A.V.; Mitroshenkov, N.V.; Novikov, V.V.; Prozorov, Ruslan

2012-05-17T23:59:59.000Z

50

Optical rotation in RbTiOAsO4 (point group mm2) W. Kaminsky*, I  

E-Print Network (OSTI)

Optical rotation in RbTiOAsO4 (point group mm2) W. Kaminsky*, I , P. A. ThomasII and A. M. Glazer, UK Received March 5, 2001; accepted September 13, 2001 Abstract. Measurement of optical rotation in RbTiOAsO4 (RTA) with the tilter method resulted in an optical rotation of r12 ÂĽ Ăľ17Ă°3Ă? /mm

Kaminsky, Werner

51

The tumor suppressor Rb and its related Rbl2 genes are regulated by Utx histone demethylase  

SciTech Connect

Research highlights: {yields} Utx increases expression of Rb and Rbl2 genes through its demethylase activity. {yields} Utx changes histone H3 methylation on the Rb and Rbl2 promoters. {yields} Utx induces decreased cell proliferation of mammalian primary cells. -- Abstract: Utx is a candidate tumor suppressor gene that encodes histone H3 lysine 27 (H3K27) demethylase. In this study, we found that ectopic expression of Utx enhanced the expression of retinoblastoma tumor suppressor gene Rb and its related gene Rbl2. This activation was dependent on the demethylase activity of Utx, and was suggested to contribute to the decreased cell proliferation induced by Utx. A chromatin immunoprecipitation assay showed that over-expressed Utx was associated with the promoter regions of Rb and Rbl2 resulting in the removal of repressive H3K27 tri-methylation and the increase in active H3K4 tri-methylation. Furthermore, siRNA-mediated knockdown of Utx revealed the recruitment of endogenous Utx protein on the promoters of Rb and Rbl2 genes. These results indicate that Rb and Rbl2 are downstream target genes of Utx and may play important roles in Utx-mediated cell growth control.

Terashima, Minoru; Ishimura, Akihiko; Yoshida, Masakazu [Division of Functional Genomics, Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Ishikawa (Japan)] [Division of Functional Genomics, Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Ishikawa (Japan); Suzuki, Yutaka; Sugano, Sumio [Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Chiba (Japan)] [Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Chiba (Japan); Suzuki, Takeshi, E-mail: suzuki-t@staff.kanazawa-u.ac.jp [Division of Functional Genomics, Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Ishikawa (Japan)] [Division of Functional Genomics, Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Ishikawa (Japan)

2010-08-20T23:59:59.000Z

52

Proposed BS in CS, Option IV, 2008-2010 Catalog Proposed MS in CS, 2009-2011 Catalog  

E-Print Network (OSTI)

RESEARCH/ GENERAL CULTURE (3) CS 336 CS 337 INTERNSHIP FOR LANG (3-5) EE 316 M 340L FOR LANG (3-5) Lab Sci

Julien, Christine

53

Search Engine Technologies CS 5319, Spring 2007  

E-Print Network (OSTI)

Search Engine Technologies CS 5319, Spring 2007 Nigel Ward Sample Project Ideas 1. I would like in the guest department similar to the target person, ranked by similarity. 2. The Dean would like an intranet

Ward, Nigel

54

On the possibility for Rb- and Eu-cation ordering in type-I clathrates: synthesis and homogeneity range of the novel compounds Rb8-xEux(In,Ge)46 (0.6 x 1.8)  

Science Journals Connector (OSTI)

Clathrates with the type-I structure are reported in the quaternary Rb-Eu-In-Ge system. Possible cation ordering is suggested.

Sch?fer, M.C.

2013-11-13T23:59:59.000Z

55

CS decomposition based Bayesian subspace estimation Olivier Besson  

E-Print Network (OSTI)

, Department Electronics Optronics Signal, Toulouse (e- mail: olivier.besson@isae.fr). The work of O. Besson

Dobigeon, Nicolas

56

Fast CsI-phoswich detector  

DOE Patents (OSTI)

An improved phoswich radiation detector used pure CsI crystal and a fast plastic scintillator and a single photomultiplier tube. The plastic is arranged to receive incident radiation, and that which passed through then strikes the CsI crystal. Scintillation light from both the plastic and CsI crystal are applied to the photomultiplier tube, with the light from the plastic passing through the crystal without absorption therein. Electronics are provided for analyzing the output of the photomultiplier tube to discriminate responses due to the plastic and the CsI crystal, through short gate and long gate integration, to produce results which are indicative of the characteristics of the different types of incident radiation, even in the presence of large amounts of radiation. The phoswich detector has excellent timing resolution. The scintillators of the CsI- phoswich were chosen for their fast risetimes, of about 3 ns for NE102A, and 30 ns for the pure CsI. 5 figs.

Langenbrunner, J.R.

1996-05-07T23:59:59.000Z

57

Fast CsI-phoswich detector  

DOE Patents (OSTI)

An improved phoswich radiation detector used pure CsI crystal and a fast plastic scintillator and a single photomultiplier tube. The plastic is arranged to receive incident radiation, and that which passed through then strikes the CsI crystal. Scintillation light from both the plastic and CsI crystal are applied to the photomultiplier tube, with the light from the plastic passing through the crystal without absorption therein. Electronics are provided for analyzing the output of the photomultiplier tube to discriminate responses due to the plastic and the CsI crystal, through short gate and long gate integration, to produce results which are indicative of the characteristics of the different types of incident radiation, even in the presence of large amounts of radiation. The phoswich detector has excellent timing resolution. The scintillators of the CsI- phoswich were chosen for their fast risetimes, of about 3 ns for NE102A, and 30 ns for the pure CsI.

Langenbrunner, James R. (1024 Osage Cir., Santa Fe, NM 87501)

1996-01-01T23:59:59.000Z

58

Precise Measurement of Strontium-82 Radioactivity in the Sr-Rb PET  

Office of Science (SC) Website

Precise Measurement of Strontium-82 Precise Measurement of Strontium-82 Radioactivity in the Sr-Rb PET Generator Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Spinoff Applications Spinoff Archives SBIR/STTR Applications of Nuclear Science and Technology Funding Opportunities Nuclear Science Advisory Committee (NSAC) News & Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3613 F: (301) 903-3833 E: sc.np@science.doe.gov More Information » Spinoff Archives Precise Measurement of Strontium-82 Radioactivity in the Sr-Rb PET Generator Print Text Size: A A A RSS Feeds FeedbackShare Page Application/instrumentation: Precise measurement of 82Sr radioactivity in the Sr-Rb PET generatorm

59

CrRb: A molecule with large magnetic and electric dipole moments  

SciTech Connect

We report calculations of Born-Oppenheimer potential energy curves of the chromium-rubidium heteronuclear molecule ({sup 52}Cr{sup 87}Rb), and the long-range dispersion coefficient for the interaction between ground state Cr and Rb atoms. Our calculated van der Waals coefficient (C{sub 6}=1770 a.u.) has an expected error of 3%. The ground state {sup 6{Sigma}+} molecule at its equilibrium separation has a permanent electric dipole moment of d{sub e}(R{sub e}=3.34Angstrom)=2.90 D. We investigate the hyperfine and dipolar collisions between trapped Cr and Rb atoms, finding elastic to inelastic cross section ratio of 10{sup 2}-10{sup 3}.

Pavlovic, Z. [ITAMP, Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, Massachusetts 02138 (United States); Department of Physics, University of Connecticut, Storrs, Connecticut 06269-3046 (United States); Sadeghpour, H. R. [ITAMP, Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, Massachusetts 02138 (United States); Cote, R. [Department of Physics, University of Connecticut, Storrs, Connecticut 06269-3046 (United States); Roos, B. O. [Department of Theoretical Chemistry, University of Lund, S-221 00 Lund (Sweden)

2010-05-15T23:59:59.000Z

60

Thermal expansion and lattice dynamics of RB66 compounds at low temperatures  

SciTech Connect

Thermal characteristics of the phonon and magnon subsystems of icosahedral borides RB66 (R = Gd, Tb, Dy, Ho, Eu, or Lu) have been studied based on the obtained experimental data on the thermal expansion of the borides and the earlier results on their heat capacity in the range of 2–300 K. The contribution to the expansion of borides containing paramagnetic R 3+ ions, which is characteristic of transition to the spin-glass state, has been revealed. The phonon spectrum moments of RB66 compounds and the Grüneisen parameters have been calculated.

Novikov, V V [Petrovsky Bryansk State University; Avdashchenko, D V [Petrovsky Bryansk State University; Mitroshenkov, N V [Petrovsky Bryansk State University; Matovnikov, A V [Petrovsky Bryansk State University; Budko, Serguei L [Ames Laboratory

2014-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "rb cs fr" 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

Spatial separation in a thermal mixture of ultracold Yb174 and Rb87 atoms  

Science Journals Connector (OSTI)

We report on the observation of unusually strong interactions in a thermal mixture of ultracold atoms which cause a significant modification of the spatial distribution. A mixture of Rb87 and Yb174 with a temperature of a few ?K is prepared in a hybrid trap consisting of a bichromatic optical potential superimposed on a magnetic trap. For suitable trap parameters and temperatures, a spatial separation of the two species is observed. We infer that the separation is driven by a large interaction strength between Yb174 and Rb87 accompanied by a large three-body recombination rate. Based on this assumption we have developed a diffusion model which reproduces our observations.

F. Baumer; F. Münchow; A. Görlitz; S. E. Maxwell; P. S. Julienne; E. Tiesinga

2011-04-21T23:59:59.000Z

62

Cs-137: a tool for quantifying soil erosion  

E-Print Network (OSTI)

. It is important to note the differences in Cs-137 concentration of cultivated and noncultivated soil when studying the behavior of Cs-137 in the watershed systems because redistribution of Cs-137 is influenced by depth of mixing (Ritchie and McHenry, 1973... (Keppel, 1969). Cs-137 is also returned to the soil in the form of animal manure (Ncgenry and Ritchie, 1977). The effect of animals and vegetation on the redistribution of Cs-137 in the soil introduces some error in the use of Cs-137 to estimate erosion...

Lavelle, Adrienne Renee

1983-01-01T23:59:59.000Z

63

The environmental impact of recombinant bovine somatotropin (rbST) use in dairy production  

Science Journals Connector (OSTI)

...Audsley E Sandars DL ( 2006 ) DEFRA Research Project ISO205 , Determining the Environmental Burdens and...supported in part by funding provided by the Liberty Hyde Bailey Professorship in College...Monsanto, holding the position of Technical Project Manager for POSILAC rbST with the primary...

Judith L. Capper; Euridice Castańeda-Gutiérrez; Roger A. Cady; Dale E. Bauman

2008-01-01T23:59:59.000Z

64

Mean-field analysis of the stability of a K-Rb Fermi-Bose mixture  

Science Journals Connector (OSTI)

We compare the experimental stability diagram of a Fermi-Bose mixture of 40K and 87Rb atoms with attractive interaction to the predictions of a mean-field theoretical model. We discuss how this comparison can be used to give a better estimate of the interspecies scattering length, which is currently known from collisional measurements with larger uncertainty.

M. Modugno; F. Ferlaino; F. Riboli; G. Roati; G. Modugno; M. Inguscio

2003-10-29T23:59:59.000Z

65

NPS-CS-06-007 POSTGRADUATE  

E-Print Network (OSTI)

- To) 4. TITLE AND SUBTITLE 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 5d. PROJECT-CS-06-007 Office of Naval Research One Liberty Center 875 North Randolph Street, Suite 1425 Arlington Systems Security Studies and Research (CISR) is working on a project known as the Trusted Computing

66

CS2223, Project 1 Intro to Lua  

E-Print Network (OSTI)

CS2223, Project 1 Intro to Lua: Measuring and Counting Sorting Behaviors Due midnight, Monday, 5 executing the file contents. Project goals. The goals of this homework are for you to familiarize yourself a copy of an array so that the original will not be lost when procedures modify the copy. print array

Guttman, Joshua

67

CS486 Course Syllabus Winter 2012  

E-Print Network (OSTI)

and intractable computations. b) Prerequisites: CS386 Introduction to Automata Theory. c) This course is elective the concept of NP-completeness and its importance in the P vs NP question. Brief list of topics to be covered. Polynomial time many-one reductions. Cook's Theorem. NP-completeness and the P vs NP question. Laboratory

Crespi, Valentino

68

Spring 2006 CS 649 1 Sensor Networks  

E-Print Network (OSTI)

density deployment · Energy constraints · Power usage · Classification of algorithms · Examples >> sensor range) #12;Energy Constraints Spring 2006 CS 649 4 · Not always possible to do additional deployment (e.g. emergency services). · Untethered operation due to lack of infrastructure precludes the use

Amir, Yair

69

DIFFUSION OF Na AND Cs IN MONTMORILLONITE  

Science Journals Connector (OSTI)

...isothermal-isobaric Monte Carlo simulations (NPT-ensemble) at a temperature of 298 K and a pressure...the Cs ions in smectite are in a more disordered environment in expanded layers (i...simulations) potential functions for proteins, energy minimizations for crystals of...

Georg Kosakowski; Sergey V. Churakov; Tres Thoenen

70

CS252/Patterson Graduate Computer Architecture  

E-Print Network (OSTI)

? 1.0 inch form factor in long term? · Tapes ­ No investment, must be backwards compatible: Goal was performance, popularity due to reliability of storage · Disk Mirroring, Shadowing (RAID 1 0 0 1 1 1 0 0 1 0 0 1 1 CS252/Patterson Lec 6.4 2/2/01 Outline · Reliability Terminology · Examlpes

California at Berkeley, University of

71

Marine Ecosystems Acous&cs Program  

E-Print Network (OSTI)

hydrophone deployments · Ishmael & Seas: In-house bio- and geo-acous@c analysis so\\ware (online free-ware) Technology Transfer to Opera&ons · Passive acous@c recording module are acous@cally oriented Why is passive acous&cs ideal for ocean monitoring

72

Field Testing of Suction Caissons at Bothkennar and Luce Bay G.T. Houlsby, R.B. Kelly, J. Huxtable and B.W. Byrne  

E-Print Network (OSTI)

Field Testing of Suction Caissons at Bothkennar and Luce Bay by G.T. Houlsby, R.B. Kelly, J.T. Houlsby, R.B. Kelly, J. Huxtable and B.W. Byrne This report consists of three papers that have resulted.T., Kelly, R.B., Huxtable, J. and Byrne, B.W. Abstract: A programme of testing of caisson foundations

Byrne, Byron

73

Study of Rb atomic transitions D1,2 lines in strong magnetic field based on fluorescence spectra of sub -micron thin cell  

E-Print Network (OSTI)

Study of Rb atomic transitions D1,2 lines in strong magnetic field based on fluorescence spectra "forbidden" transitions in magnetic field B are detected and studied. Also, on 87 Rb D1 line, Fg = 1, mF = 0 the levels of the hyperfine structure of the D1,2 lines of 87 Rb atoms in magnetic fields with B varying

Boyer, Edmond

74

Year First name Surname Mentor CS1 Mark Askew Jenny Coady  

E-Print Network (OSTI)

Jamie Gabbay CS2 Ugis Laimins Jenny Coady CS2 Michael Laing Peter King CS2 Gordon MacDougall Jenny Coady

Painter, Kevin

75

Radiation damage in undoped CsI and CsI(Tl)  

SciTech Connect

Radiation damage has been studied in undoped CsI and CsI(TI) crystals using [sup 60]Co gamma radiation for doses up to [approximately] 4.2 [times] 10[sup 6]. Samples from various manufacturers were measured ranging in size from 2.54 cm long cylinders to a 30 cm long block. Measurements were made on the change in optical transmission and scintillation light output as a function of dose. Although some samples showed a small change in transmission, a significant change in light output was observed for all samples. Recovery from damage was also studied as a function of time and exposure to UV light. A short lived phosphorescence was observed in undoped CsI, similar to the phosphorescence seen in CsI(TI).

Woody, C.L.; Kierstead, J.A.; Levy, P.W.; Stoll, S.

1992-01-01T23:59:59.000Z

76

Radiation damage in undoped CsI and CsI(Tl)  

SciTech Connect

Radiation damage has been studied in undoped CsI and CsI(TI) crystals using {sup 60}Co gamma radiation for doses up to {approximately} 4.2 {times} 10{sup 6}. Samples from various manufacturers were measured ranging in size from 2.54 cm long cylinders to a 30 cm long block. Measurements were made on the change in optical transmission and scintillation light output as a function of dose. Although some samples showed a small change in transmission, a significant change in light output was observed for all samples. Recovery from damage was also studied as a function of time and exposure to UV light. A short lived phosphorescence was observed in undoped CsI, similar to the phosphorescence seen in CsI(TI).

Woody, C.L.; Kierstead, J.A.; Levy, P.W.; Stoll, S.

1992-12-01T23:59:59.000Z

77

CS Wind Tech Co Ltd | Open Energy Information  

Open Energy Info (EERE)

CS Wind Tech Co Ltd CS Wind Tech Co Ltd Jump to: navigation, search Name CS Wind Tech Co Ltd Place Lianyungang, China Zip 222049 Sector Wind energy Product China-based wind turbine tower maker, a subsidiary of Korea's CS Corporation. References CS Wind Tech Co Ltd[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. CS Wind Tech Co Ltd is a company located in Lianyungang, China . References ↑ "CS Wind Tech Co Ltd" Retrieved from "http://en.openei.org/w/index.php?title=CS_Wind_Tech_Co_Ltd&oldid=343989" Categories: Clean Energy Organizations Companies Organizations Stubs What links here Related changes Special pages Printable version Permanent link Browse properties 429 Throttled (bot load)

78

stanford hci group / cs376 http://cs376.stanford.eduScott Klemmer 19 October 2006  

E-Print Network (OSTI)

1 stanford hci group / cs376 http://cs376.stanford.eduScott Klemmer · 19 October 2006 Distributed with Ed Hutchins in the spring of 05... #12;3 Integration of Thinking and Doing Clearboard's tech

Klemmer, Scott

79

Sympathetic cooling of the Ba{sup +} ion by collisions with ultracold Rb atoms: Theoretical prospects  

SciTech Connect

State-of-the-art ab initio techniques have been applied to compute the potential energy curves of the (BaRb){sup +} molecular ion in the Born-Oppenheimer approximation for the singlet and triplet states dissociating into the ground-state {sup 1}S Rb{sup +} ion and the Ba atom in the ground {sup 1}S state or the lowest singlet or triplet d excited states, and for the singlet and triplet states dissociating into the ground-state {sup 2}S Rb atom and the ground-state {sup 2}S Ba{sup +} ion. The ground-state potential energy was obtained with the coupled-cluster method restricted to single, double, and nonperturbative triple excitations. The first triplet states in the {Sigma}, {Pi}, and {Delta} symmetries were computed with the restricted open-shell coupled-cluster method restricted to single, double, and nonperturbative triple excitations. All other excited-state potential energy curves were computed using the equation of motion approach within the coupled-cluster singles, doubles, and linear triples framework. The long-range coefficients describing the electrostatic, induction, and dispersion interactions at large interatomic distances are also reported. The electric transition dipole moments governing the x {sup 1{Sigma}{yields}1{Sigma}},{sup 1{Pi}} transitions have been obtained as the first residue of the polarization propagator computed with the linear response coupled-cluster method restricted to single and double excitations. Nonadiabatic radial and angular coupling matrix elements as well as the spin-orbit coupling matrix elements have been evaluated using the multireference configuration-interaction method restricted to single and double excitations with a large active space. With these couplings, the spin-orbit-coupled (relativistic) potential energy curves for the 0{sup +} and 1 states relevant for the running experiments have been obtained. Finally, relativistic transition moments and nonadiabatic coupling matrix elements were obtained from the nonrelativistic results and spin-orbit eigenvectors. The electronic structure input has been employed in the single-channel scattering calculations of the collisional cross sections between the Ba{sup +} ion and Rb atom. Both nonrelativistic and relativistic potentials were used in these calculations. Our results show that the inelastic cross section corresponding to the charge transfer from the Rb atom to the Ba{sup +} ion is much smaller than the elastic one over a wide range of energies up to 1 mK. This suggests that sympathetic cooling of the Ba{sup +} ion by collisions with ultracold Rb atoms should be possible.

Krych, Michal; Skomorowski, Wojciech; Pawlowski, Filip; Moszynski, Robert; Idziaszek, Zbigniew [Institute of Theoretical Physics, Department of Physics, University of Warsaw, Hoza 69, 00-681 Warsaw (Poland) and Quantum Chemistry Laboratory, Department of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw (Poland); Quantum Chemistry Laboratory, Department of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw (Poland); Institute of Theoretical Physics, Department of Physics, University of Warsaw, Hoza 69, 00-681 Warsaw (Poland) and Institut de Physique de Rennes, UMR 6251 du CNRS and Universite de Rennes I, F-35042 Rennes Cedex (France)

2011-03-15T23:59:59.000Z

80

Simulations of phase transitions in Rb2ZnCl4  

Science Journals Connector (OSTI)

Structural relaxations, molecular-dynamics simulations, and lattice-dynamics calculations were performed to study the phase transitions in Rb2ZnCl4, using intermolecular and intramolecular potentials generated from ab initio quantum-chemistry calculations for the whole molecular ion ZnCl42-. Compared with an earlier treatment of the system by a polarizable-ion model, the present approach emphasizes the static effect of the electron covalency within the molecular ions that affects strongly both the intermolecular and intramolecular interactions. The calculations gave a close agreement with experiment on the static structures of the Pnam and the Pna21 phases and the transition temperature from the former to the latter. For the lower-temperature, monoclinic phase of Rb2ZnCl4, the detailed structure of which is unknown, our simulations predict a structure with C1c1 space-group symmetry, which doubles the Pna21 structure along both the b and c axes and thus has 48 formula units per unit cell. The lattice-dynamics calculations for the Pna21 structure clearly revealed the lattice instability responsible for the Pna21-monoclinic transition and provided a more convincing explanation of a previous Raman measurement. We have shown that the potential-energy surface in Rb2ZnCl4 pertinent to the phase transitions contains a double-well structure, very similar to that of K2SeO4, except that the double well is much deeper, causing the much more severe disordering in the Pnam structure of Rb2ZnCl4 observed experimentally.

H. M. Lu and J. R. Hardy

1992-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "rb cs fr" 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

Magnetism in orbitally unquenched chainar compounds. II. The ferromagnetic case: RbFeCl3  

Science Journals Connector (OSTI)

Measurements of quadrupole splitting by the Mössbauer effect and of single-crystal magnetic susceptibility are reported for the ferromagnetic chainar crystal RbFeCl3. By use of crystal-field theory and the correlated-effective-field statistical approximation these results are analyzed in terms of a model with only three adjustable parameters, a spin-orbit coupling constant, a trigonal crystal-field parameter, and an intrachain Heisenberg exchange J between real spins. A quantitative analysis paralleling that used in a previous paper for isomorphic RbFeBr3 is less successful in the present case, discrepancies arising at low temperatures which are at least partly due to small interchain exchange. The latter, which for RbFeCl3 perturbs a quasiferro magnetic system in an antiferro magnetic fashion, produces qualitative effects on magnetic response at sufficiently low temperatures. In addition, we suggest possible evidence for the importance of a non-Heisenberg contribution to exchange, the form and origin of which are discussed.

M. Eibschütz; M. E. Lines; R. C. Sherwood

1975-06-01T23:59:59.000Z

82

Nuclear Quadrupole Interaction in CsF  

Science Journals Connector (OSTI)

The electric resonance method of molecular beam spectroscopy has been used under high resolution conditions to study the rotational Stark spectrum of CsF for a single rotational state of the molecule, J=1. In this method polar molecules in a single rotational state and a particular state of space quantization are selected from a molecular beam by means of inhomogeneous electric fields which give the desired molecules a unique, sigmoid path in the apparatus. Changes in the beam intensity are observed when a change in the space quantization of the molecule is produced by an oscillating electric field transverse to a homogeneous, steady electric field. For weak electric fields the observed line widths agree well with the estimated uncertainty width of 10 kc/sec. At stronger fields inhomogeneities in the field cause a broadening of the lines. At sufficiently strong fields the spectrum for CsF contains several broad lines, each of which is due to transitions of molecules in a particular vibrational state. As the field strength is decreased the resolution improves and these lines reveal a complex fine structure, the principal features of which can be explained by the interaction of the electric quadrupole moment of the Cs nucleus, spin 7/2, with the molecular electrons and the F nucleus. The F nucleus, spin 1/2, has no quadrupole moment. A complete, quantitative explanation of the spectra requires the existence of a cosine type coupling between the nuclear spins and the molecular spin of the form cI·J, and a correction for the spin-spin interaction of the two nuclei. At weak fields a different type of spectrum appears, permitting an independent evaluation of the nuclear-molecular interactions. The data allows a determination of both the magnitude and sign of the interaction constants. The quadrupole interaction, defined by (e2q?Q2h), is (+0.310±0.002) mc/sec. The constants, ch, for the I·J interactions for F and Cs are, respectively, (+16±2) kc/sec and (0±1) kc/sec. The difference in the quadrupole interaction for the first two vibrational states is less than the experimental error; i.e., less than one percent. Application of the method to the measurement of various molecular constants is discussed briefly at the end of the paper.

J. W. Trischka

1948-10-01T23:59:59.000Z

83

Scattering of CsF by Electrons  

Science Journals Connector (OSTI)

Absolute differential and total cross sections for the scattering of CsF by 0.6- to 6.5- eV electrons have been measured using the molecular-beam recoil technique. The first-Born-approximation differential cross section is used as the theoretical model to fit the data. The experimental differential cross sections rise more sharply near 0° than predicted. Total cross sections derived from our measurements are a factor of 1.5 to 4 smaller than the first-approximation results.

Richard C. Slater; Michael G. Fickes; Richard C. Stern

1972-08-07T23:59:59.000Z

84

K2CsSb Cathode Development  

SciTech Connect

K{sub 2}CsSb is an attractive photocathode for high current applications. With a quantum efficiency of >4% at 532nm and >10% at 355nm, it is the only cathode to have demonstrated an average current of 35mA in an accelerator environment We describe ongoing cathode development work. for the energy recovery linac being constructed at BNL Several cathodes have been created on both copper and stainless steel substrates, and their spatial uniformity and spectral response have been characterized. Preliminary lifetime measurements have been performed at high average current densities (>1 mA/mm{sup 2}).

Smedley,J.; Rao, T.; Wang, E.

2008-10-01T23:59:59.000Z

85

Medium-spin structure of {sup 145}Cs  

SciTech Connect

Excited states in {sup 145}Cs, populated following the spontaneous fission of {sup 248}Cm, were studied by means of prompt-gamma spectroscopy, using the EUROGAM2 multidetector array. A new level scheme of {sup 145}Cs was proposed. We identified a decoupled band corresponding to 1/2[550] proton configuration and interpreted the ground-state band as a mixed configuration of 1/2[440] and 3/2[422] proton orbitals. Quasiparticle-rotor calculations performed for {sup 145}Cs support such assignments. The electric dipole moment in {sup 145}Cs, D{sub 0}=0.013(4) efm, is smaller than in lighter Cs isotopes, which suggests that octupole correlations in Cs isotopes decrease at the neutron number N=90, similarly as observed in the {sup 146}Ba and {sup 147}La isotones.

Rzaca-Urban, T. [Faculty of Physics, University of Warsaw, ul. Hoza 69, PL-00681 Warsaw (Poland); Urban, W. [Faculty of Physics, University of Warsaw, ul. Hoza 69, PL-00681 Warsaw (Poland); Institut Laue-Langevin, 6 rue J. Horowitz, F-38042 Grenoble (France); Pinston, J. A.; Simpson, G. S. [Laboratoire de Physique Subatomique et de Cosmologie, Universite Joseph Fourier Grenoble 1, CNRS/IN2P3, Institut National Polytechnique de Grenoble, F-38026 Grenoble Cedex (France); Durell, J. L.; Smith, A. G. [Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL (United Kingdom); Ahmad, I. [Argonne National Laboratory, Argonne, Illinois 60439 (United States)

2010-07-15T23:59:59.000Z

86

Record of Categorical Exclusion (CS) Determination, Office of Electricity  

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

8 Brookfield Energy 8 Brookfield Energy Marketing LP Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): EA-368 Brookfield Energy Marketing LP Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): Application from Brookfield Energy Marketing LP to export electric energy to CanadaA EA-368 Brookfield Energy Marketing LP More Documents & Publications Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): OE Docket EA-364 Noble Americas Gas & Power Corporation Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): EA-365 Centre Land Trading Limited

87

Record of Categorical Exclusion (CS) Determination, Office of Electricity  

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

EA-365 Centre Land EA-365 Centre Land Trading Limited Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): EA-365 Centre Land Trading Limited Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): Application from Centre Land Trading Limited to export electric energy to Canada EA- 365 Centre Land Trading Limited More Documents & Publications Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): EA-367 EDF Trading North America, LLC (EDF) Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): OE Docket EA-364 Noble Americas Gas & Power Corporation

88

Record of Categorical Exclusion (CS) Determination, Office of Electricity  

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

3 Noble Americas Gas 3 Noble Americas Gas & Power Corporation Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): EA-363 Noble Americas Gas & Power Corporation Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): Noble Americas Gas & Power Corporation to export electric energy to Mexico EA-363 Noble Americas Gas & Power Corporation More Documents & Publications Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): OE Docket EA-364 Noble Americas Gas & Power Corporation EA-363 Noble Americas Gas & Power Corporation Record of Categorical Exclusion (CS) Determination, Office of Electricity

89

Record of Categorical Exclusion (CS) Determination, Office of...  

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

of 2009 (Recovery Act) StateRegionalLocal Assistance for Interconnection Transmission Planning and Analysis More Documents & Publications Record of Categorical Exclusion (CS)...

90

Record of Categorical Exclusion (CS) Determination, Office of...  

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

3 Noble Americas Gas & Power Corporation Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): EA-363 Noble Americas Gas &...

91

Record of Categorical Exclusion (CS) Determination, Office of...  

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

OE Docket EA-364 Noble Americas Gas & Power Corporation Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): OE Docket...

92

Record of Categorical Exclusion (CS) Determination, Office of...  

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

of Electricity Delivery and Energy Reliability (OE): OE Docket EA-364 Noble Americas Gas & Power Corporation Record of Categorical Exclusion (CS) Determination, Office of...

93

Record of Categorical Exclusion (CS) Determination, Office of...  

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

8 Brookfield Energy Marketing LP Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): EA-368 Brookfield Energy Marketing...

94

Record of Categorical Exclusion (CS) Determination, Office of...  

Energy Savers (EERE)

Framework (EISA 1305) Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): American Recovery and Reinvestment Act of...

95

Record of Categorical Exclusion (CS) Determination, Office of...  

Energy Savers (EERE)

Program (EISA 1306) Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): American Recovery and Reinvestment Act of...

96

E2F1 and p53 Are Dispensable, whereas p21Waf1/Cip1 Cooperates with Rb to Restrict Endoreduplication  

E-Print Network (OSTI)

E2F1 and p53 Are Dispensable, whereas p21Waf1/Cip1 Cooperates with Rb to Restrict Endoreduplication Rb and the cyclin-dependent kinase inhibitor p21Waf1/Cip1 . Although E2F1 and p53 mediate ectopic DNA of Rb and p21Waf1/Cip1 augments endoreduplication and apoptosis, whereas E2F1 and p53 are dispensable

Liang, Ping

97

Synthesis, single-crystal structure, and optical absorption of Rb{sub 2}Th{sub 7}Se{sub 15}  

SciTech Connect

The compound Rb{sub 2}Th{sub 7}Se{sub 15} has been synthesized by the solid-state reaction at 1273 K of Th, Rb{sub 2}Se{sub 3}, Se, and Ge, and its structure has been determined by single-crystal X-ray diffraction methods. Red crystals of Rb{sub 2}Th{sub 7}Se{sub 15} crystallize at 100(2) K with four formula units in a new structure type in the monoclinic space group C{sub 2h}{sup 5}?P2{sub 1}/c. The structure is three-dimensional and comprises Rb and Th atoms coordinated by Se atoms to form nine-, eight-, and seven-coordinate polyhedra. Infinite channels that contain Rb atoms are present. Crystals of Rb{sub 2}Th{sub 7}Se{sub 15} are red in color; an indirect band gap of 1.83 eV was derived from single-crystal optical measurements. - Graphical abstract: Structure of Rb{sub 2}Th{sub 7}Se{sub 15} viewed down the b-axis. Display Omitted - Highlights: • The new compound Rb{sub 2}Th{sub 7}Se{sub 15} was synthesized at 1273 K from the elements in the presence of Ge. • The structures of the two known Rb/Th/Se compounds, RbTh{sub 2}Se{sub 6} and Rb{sub 2}Th{sub 7}Se{sub 15}, differ markedly. • Optical measurements establish the band gap of Rb{sub 2}Th{sub 7}Se{sub 15} to be indirect with a value of 1.83 eV.

Koscielski, Lukasz A.; Pozzi, Eric A.; Van Duyne, Richard P.; Ibers, James A., E-mail: ibers@chem.northwestern.edu

2013-09-15T23:59:59.000Z

98

Transition temperatures and vacancies in superconducting Rb{sub 3}C{sub 60}  

SciTech Connect

We have studied the role of alkali-metal vacancies in the structure and superconductivity in nominal Rb{sub 3}C{sub 60} through preparation of samples with different alkali-metal loadings and annealing temperatures, to search for the possible role of nonstoichiometry in superconductivity. We find sample-to-sample variations of {approx}1 K in the superconducting transition temperature, but this does not correlate with vacancy concentration. We conclude that a model of electronic structure of alkali-metal fullerenes based on proximity to a Mott-Hubbard transition at integer doping is not applicable.

Huq, Ashfia; Stephens, Peter W. [Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800 (United States)

2005-09-01T23:59:59.000Z

99

Electronic structure and fundamental absorption edges of KPb2Br5, K0.5Rb0.5Pb2Br5, and RbPb2Br5 single crystals  

Science Journals Connector (OSTI)

X-ray photoelectron core-level and valence-band spectra for pristine and Ar+-ion irradiated (001) surfaces of KPb2Br5, K0.5Rb0.5Pb2Br5, and RbPb2Br5 single crystals grown by the Bridgman method have been measured and fundamental absorption edges of the ternary bromides have been recorded in the polarized light at 300 K and 80 K. The present X-ray photoelectron spectroscopy (XPS) results reveal high chemical stability of (001) surfaces of KxRb1?xPb2Br5 (x=0, 0.5, and 1.0) single crystals. Substitution of potassium for rubidium in KxRb1?xPb2Br5 does not cause any changes of binding energy values and shapes of the XPS constituent element core-level spectra. Measurements of the fundamental absorption edges indicate that band gap energy, Eg, increases by about 0.14 and 0.19 eV when temperature decreases from 300 K to 80 K in \\{KPb2Br5\\} and RbPb2Br5, respectively. Furthermore, there is no dependence of the Eg value for \\{KPb2Br5\\} upon the light polarization, whilst the band gap energy value for RbPb2Br5 is bigger by 0.03–0.05 eV in the case of E?c compared to those in the cases of E?a and E?b.

A.Yu. Tarasova; L.I. Isaenko; V.G. Kesler; V.M. Pashkov; A.P. Yelisseyev; N.M. Denysyuk; O.Yu. Khyzhun

2012-01-01T23:59:59.000Z

100

Declaring CS or CSE 1. Find an Advisor  

E-Print Network (OSTI)

Declaring CS or CSE 1. Find an Advisor Find a CS professor or lecturer who verbally agrees to be your advisor. See http://csmajor/FacultyList.php for a list of faculty members. You should meet with him or her in person, either in office hours or by appointment. Write your advisors name here. I have

Pratt, Vaughan

Note: This page contains sample records for the topic "rb cs fr" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Mariya Zhivkova Zheleva http://www.cs.ucsb.edu/mariya/  

E-Print Network (OSTI)

Mariya Zhivkova Zheleva http://www.cs.ucsb.edu/mariya/ mariya@cs.ucsb.edu Education PhD, Department of Computer Science June 2014 (expected) University of California Santa Barbara, Santa Barbara, CA MEng Workshop in Computing (GSWC). Santa Barbara, CA, October, 2012. 1 #12; Posters and Videos ­ Mariya Zheleva

California at Santa Barbara, University of

102

Applicability of CS616 Soil Water Sensors for South  

E-Print Network (OSTI)

site water balance Image from: (Migliaccio 2007) #12;Background ­ Soil Water Sensors Time DomainApplicability of CS616 Soil Water Sensors for South Florida Urban Soils Kevin Koryto Water: Determine if CS616 soil water sensors are functioning adequately at field site. Hypothesis: Presence of air

Migliaccio, Kati White

103

Extreme ProgrammingCS4150-15 administrivia  

E-Print Network (OSTI)

Extreme ProgrammingCS4150-15 administrivia today assignment 3 due (last assignment!) extreme from original) project designs due 1 Tuesday, October 19, 2010 #12;Extreme ProgrammingCS4150-15 extreme programming extreme programming (XP) is a recent shift about the last decade plus part of agile development

Damon, Craig A.

104

NERSC/DOE FES Requirements Workshop Worksheet - CS Chang  

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

CS Chang CS Chang CS Chang FES Requirements Worksheet 1.1. Project Information - Center for Plasma Edge Simulation Document Prepared By CS Chang Project Title Center for Plasma Edge Simulation Principal Investigator CS Chang Participating Organizations New York University, ORNL, PPPL, LBNL, MIT, Columbia U., Rutgers U. Lehigh U., Georgia Tech, Auburn U., U. Colorado, U. California at Irvine, Caltech, Hinton Associates Funding Agencies DOE SC DOE NSA NSF NOAA NIH Other: 2. Project Summary & Scientific Objectives for the Next 5 Years Please give a brief description of your project - highlighting its computational aspect - and outline its scientific objectives for the next 3-5 years. Please list one or two specific goals you hope to reach in 5 years. Develop the XGC large scale edge kinetic codes further for higher fidelity

105

9. CS and discrete probability David Keil CS II 7/02 David Keil 1/03 1  

E-Print Network (OSTI)

probability) · Intuition: given some knowledge of an object, and some statistics about the population1 9. CS and discrete probability David Keil CS II 7/02 David Keil 1/03 1 Computer science and discrete probability · Probability space · Independent and dependent events · Conditional probability

Keil, David M.

106

A comparison of 137 Cs radioactivity in localized evergreen and deciduous plant species  

E-Print Network (OSTI)

and evergreen foliage at CPSES. Soil 117CS concentrations from each vegetation location were also compared to the foliage 137CS concentrations. The study's objective was to determine if the deciduous and evergreen vegetation 137CS concentrations...

Rangel, Ruben Canales

1996-01-01T23:59:59.000Z

107

Record of Categorical Exclusion (CS) Determination, Office of Electricity  

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

OE Docket EA-364 Noble OE Docket EA-364 Noble Americas Gas & Power Corporation Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): OE Docket EA-364 Noble Americas Gas & Power Corporation Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): Application from Noble Americas Gas & Power Corporation to export electric energy to Canada Application to Export Electric Energy OE Docket EA-364 Noble Americas Gas & Power Corporation More Documents & Publications EA-364 Noble Americas Gas & Power Corporation Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): EA-367 EDF Trading North America, LLC

108

Record of Categorical Exclusion (CS) Determination, Office of Electricity  

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

Program Direction Program Direction Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): American Recovery and Reinvestment Act of 2009 (Recovery Act) Program Direction Based on OE's review of the information concerning the proposal action, the NEPA compliance Officer has determined that the proposed action fits within the specified class of action, other regulatory requirements set forth are met, and proposed action is hereby categorically excluded from further NEPA review. Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): American Recovery and Reinvestment Act of 2009 (Recovery Act) Program Direction More Documents & Publications Record of Categorical Exclusion (CS) Determination, Office of Electricity

109

Line narrowing of electromagnetically induced transparency in Rb with a longitudinal magnetic field  

Science Journals Connector (OSTI)

Electromagnetically induced transparency (EIT) experiments in ?-type systems benefit from the use of hot vapor where the thermal averaging results in reducing the width of the EIT resonance well below the natural linewidth. Here, we demonstrate a technique for further reducing the EIT width in room-temperature vapor by the application of a small longitudinal magnetic field. The Zeeman shift of the energy levels results in the formation of several shifted subsystems; the net effect is to create multiple EIT dips each of which is significantly narrower than the original resonance. We observe a reduction by a factor of 3 in the D2 line of Rb87 with a field of 3.2G.

S. M. Iftiquar and Vasant Natarajan

2009-01-12T23:59:59.000Z

110

Alkali-metal stoichiometry and structure of K4C60 and Rb4C60  

Science Journals Connector (OSTI)

Alkali-metal fulleride samples KxC60 and RbxC60 with stoichiometries close to x=4 were examined with x-ray powder-diffraction measurements at room temperature. We have shown through Rietveld refinements that A4C60 is a line phase with charge per lattice site that is closer to integer than in any other fulleride. The C60 molecules are disordered between two possible orientations within the body-centered-tetragonal lattice with the three orthogonal twofold rotation axes aligned with the unit-cell translation vectors in space group I4/mmm. The x-ray diffraction results exclude any quadrupole distortion of the fullerene molecule beyond about 0.04 ?. These results suggest that K4C60 and Rb4C60 may be Mott insulators.

Christine A. Kuntscher; Götz M. Bendele; Peter W. Stephens

1997-02-01T23:59:59.000Z

111

Determination of the 85 Rb ng-series quantum defect by electric-field-induced resonant energy  

E-Print Network (OSTI)

Determination of the 85 Rb ng-series quantum defect by electric-field-induced resonant energy of an electric field 1 . The resonant energy transfer process between Rydberg atoms is driven by the electric-series of potassium. The range of electric fields or "width" over which signifi- cant resonant energy transfer can

Le Roy, Robert J.

112

Record of Categorical Exclusion (CS) Determination, Office of Electricity  

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

7 EDF Trading North 7 EDF Trading North America, LLC (EDF) Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): EA-367 EDF Trading North America, LLC (EDF) Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): Application of EDF Trading North America, LLC (EDF) to export electric energy to Canada EA-367 EDF Trading North America, LLC (EDF) More Documents & Publications EA-367 EDF Trading North America, LLC Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): OE Docket EA-364 Noble Americas Gas & Power Corporation Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): EA-365 Centre Land Trading Limited

113

Introducing Concurrency in CS 1 Kim B. Bruce  

E-Print Network (OSTI)

Introducing Concurrency in CS 1 Kim B. Bruce Department of Computer Science Pomona College Computer Architecture Re- search", held in December of 2005, identified four grand chal- lenges. One

Danyluk, Andrea Pohoreckyj

114

ARIES-CS COIL STRUCTURE ADVANCED FABRICATION APPROACH  

E-Print Network (OSTI)

: ARIES-CS, advanced fabrication, additive manufacturing Note: Some figures in this paper are in color with conventional means would be very challenging and costly. A new fabrication technology is "additive manufac

California at San Diego, University of

115

The Transfer of Dissolved Cs-137 from Soil to Plants  

SciTech Connect

Rapidly maturing plants were grown simultaneously at the same experimental sites under natural conditions at the Chernobyl Exclusion Zone. Roots of the plants were side by side in the soil. During two seasons we selected samples of the plants and of the soils several times every season. Content of Cs-137 in the plant and in the soil solution extracted from the samples of soils was measured. Results of measurements of the samples show that, for the experimental site, Cs-137 content in the plant varies with date of the sample selection. The plant:soil solution Cs-137 concentration ratio depends strongly on the date of selection and also on the type of soil. After analysis of the data we conclude that Cs-137 plant uptake is approximately proportional to the content of dissolved Cs-137 in the soil per unit of volume, and the plant:soil solution Cs-137 concentration ratio for the soil is approximately proportional to the soil moisture. (authors)

Prorok, V.V.; Melnichenko, L.Yu. [Department of Physics, Taras Shevchenko National University of Kyiv, 2, build. 1 Acad. Glushkov prospect, Kyiv-680 MSP (Ukraine); Mason, C.F.V. [Research Applications Corporation, 148 Piedra Loop, Los Alamos, NM 87544 (United States); Ageyev, V.A.; Ostashko, V.V. [Institute for Nuclear Research, 47 Nauky prospect, Kyiv-680 MSP (Ukraine)

2006-07-01T23:59:59.000Z

116

FR Cnc Nature Revisited  

Science Journals Connector (OSTI)

The results of photometric and spectroscopic monitoring of FR Cnc reported a tricky nature. We carried out...

M. C. Gálvez; A. Golovin; M. Hernán-Obispo…

2010-01-01T23:59:59.000Z

117

CsCl Separation From a LiCl-CsCl Mixture by Using a Crystallization Approach  

SciTech Connect

Separation of CsCl and SrCl{sub 2} from LiCl was carried out by using a noble separation technology, the Czochralski crystallization method. It was experimentally confirmed that Cs as well as Sr could be simultaneously separated from a LiCl molten salt by the suggested crystallization process without any kind of additive or adsorption media. The concentrations of Cs and Sr in the LiCl were decreased from 1.53 wt% and 4.18 wt% in the initial salt to a minimum of 114 ppm and 135 ppm in the grown LiCl crystal respectively. The separation mechanism of Cs and Sr is described by the solubility difference of the solutes between the molten and the solid states. It is expected that the total amount of salt waste could be drastically decreased, because most of the LiCl could be recovered for recycling to the electroreduction process. (authors)

Jong-Hyeon, Lee; Gyu-Hwan, Oh; Han-Soo, Lee; Sung-Bin, Park; Yoon-Sang, Lee; In-Tae, Kim; Eung-Ho, Kim; Seong-Won, Park [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

2008-07-01T23:59:59.000Z

118

Identification of the slow E3 transition 136mCs -> 136Cs with conversion electrons  

E-Print Network (OSTI)

We performed at ISOLDE the spectroscopy of the decay of the 8- isomer in 136Cs by and conversion-electron detection. For the first time the excitation energy of the isomer and the multipolarity of its decay have been measured. The half-life of the isomeric state was remeasured to T1/2 = 17.5(2) s. This isomer decays via a very slow 518 keV E3 transition to the ground state. In addition to this, a much weaker decay branch via a 413 keV M4 and a subsequent 105 keV E2 transition has been found. Thus we have found a new level at 105 keV with spin 4+ between the isomeric and the ground state. The results are discussed in comparison to shell model calculations.

K. Wimmer; U. Koester; P. Hoff; Th. Kroell; R. Kruecken; R. Lutter; H. Mach; Th. Morgan; S. Sarkar; M. Saha Sarkar; W. Schwerdtfeger; P. C. Srivastava; P. G. Thirolf; P. Van Isacker

2011-06-30T23:59:59.000Z

119

InDesign CS 5 -Posters Adobe InDesign CS 5 TM is a powerful desktop publishing program. In addition to creating  

E-Print Network (OSTI)

InDesign CS 5 - Posters Adobe InDesign CS 5 TM is a powerful desktop publishing program for composing posters. In this course you will learn the basics of creating posters with InDesign CS 5 . Planning the poster Check with event or conference staff for exact size specifications and what type

Aalberts, Daniel P.

120

PRODUCTIOR"OF TRORI~JW~IETALIWES PROCESS F6R RB)IJCIRO T&Old 2 ':  

Office of Legacy Management (LM)

PRODUCTIOR"OF TRORI~JW~IETALIWES PROCESS F6R RB)IJCIRO T&Old 2 ': PRODUCTIOR"OF TRORI~JW~IETALIWES PROCESS F6R RB)IJCIRO T&Old 2 ': am wm ..,. :I.::. ? ; \: :.:, .,, : ,. / 1. ..ri:,:,.:, :/ I 8yblBOLa PPaJPT i: >. ,,;.;~:,,; ,;.. !,., ,ip; ,,,:. ;., -. , ^ , . . 3 '>) ! .,:<;:,,..,. ; : :..,, ,,.+ -../ ,:,; I,:;?: ..: : ,, ,,: ; !. (' '; ::, Durine,~~~v%eit'to Amae &8Htate~Coliegd on Mar6h 4 and 2 to dl&ni& prinalpally~~asl~~prd~ess~~~1 also r&&&d wltlvDii 8. Wilhelm and Dr. D. Peterson of An~?e Iowa State College their ?xperimantal work on%hC14yt~ep,yp6n,,~ 'iti eotl,m ~th.~gxtssiun t6 tborlum metal.- ;:'..?a: :. ( : ; ;2,& : '. .' ; '; :: !,%. :: '.. , 2. * BumDary. y2, ,, vii,:;,. ,:,, r: '.,;.','. ,;I ,' .,._..I :, . .._., 7::: 1 ::.! "j:. *.,,: ,,,, ::':?;.: :,,;,

Note: This page contains sample records for the topic "rb cs fr" 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

Spectroscopy of triplet states of Rb{sub 2} by femtosecond pump-probe photoionization of doped helium nanodroplets  

SciTech Connect

The dynamics of vibrational wave packets in triplet states of rubidium dimers (Rb{sub 2}) formed on helium nanodroplets are studied using femtosecond pump-probe photoionization spectroscopy. Due to fast desorption of the excited Rb{sub 2} molecules off the droplets and due to their low internal temperature, wave-packet oscillations can be followed up to very long pump-probe delay times > or approx. 1.5 ns. In the first-excited triplet state (1){sup 3}{sigma}{sub g}{sup +}, full and fractional revivals are observed with high contrast. Fourier analysis provides high-resolution vibrational spectra which are in excellent agreement with ab initio calculations.

Mudrich, M.; Heister, Ph.; Hippler, T.; Giese, Ch.; Stienkemeier, F. [Physikalisches Institut, Universitaet Freiburg, 79104 Freiburg (Germany); Dulieu, O. [Laboratoire Aime Cotton, CNRS, Universite Paris-Sud, Batiment 505, 91405 Orsay (France)

2009-10-15T23:59:59.000Z

122

Spectroscopy and applications of the 3?{sup 3}?{sup +} electronic state of {sup 39}K{sup 85}Rb  

SciTech Connect

We report new results on the spectroscopy of the 3?{sup 3}?{sup +} electronic state of {sup 39}K{sup 85}Rb. The observations are based on resonance-enhanced multiphoton ionization of ultracold KRb molecules starting in vibrational levels v?? = 18–23 of the a?{sup 3}?{sup +} state and ionized via the intermediate 3?{sup 3}?{sup +} state. The a-state ultracold molecules are formed by photoassociation of ultracold {sup 39}K and {sup 85}Rb atoms to the 3(0{sup +}) state of KRb followed by spontaneous emission. We discuss the potential applications of this state to future experiments, as a pathway for populating the lowest vibrational levels of the a state as well as the X state.

Banerjee, Jayita, E-mail: jayitarm@gmail.com; Rahmlow, David; Carollo, Ryan; Bellos, Michael; Eyler, Edward E.; Gould, Phillip L.; Stwalley, William C. [Department of Physics, University of Connecticut, Storrs, Connecticut 06269-3046 (United States)] [Department of Physics, University of Connecticut, Storrs, Connecticut 06269-3046 (United States)

2013-11-07T23:59:59.000Z

123

Neutron scattering studies of spin excitations in superconducting Rb0.82Fe1.68Se2  

SciTech Connect

We use inelastic neutron scattering to show that superconducting (SC) rubidium iron selenide Rb0.82Fe1.68Se2 exhibits antiferromagnetic (AF) spin excitations near the in-plane wave vector Q = ( ,0) identical to that for iron arsenide superconductors. Moreover, we find that these excitations change from incommensurate to commensurate with increasing energy and occur at the expense of spin waves associated with the coexisting 5 5 block AF phase. Since these spin excitations cannot come from Fermi surface nesting based on angle resolved photoemission experiments, our results indicate the presence of local moments in SC Rb0.82Fe1.68Se2 that may have a similar origin as the hourglass-like spin excitations in copper oxide superconductors.

Wang, Miaoyin [University of Tennessee, Knoxville (UTK); Li, Chunhong [The Institute of Physics, Chinese Academy of Sciences; Abernathy, Douglas L [ORNL; Song, Yu [University of Tennessee, Knoxville (UTK); Carr, Scott V. [University of Tennessee, Knoxville (UTK); Lu, Xiangye [The Institute of Physics, Chinese Academy of Sciences; Li, Shiliang [The Institute of Physics, Chinese Academy of Sciences; Yamari, Zahra [Canadian Neutron Beam Centre, National Research Council, Chalk River Laboratorie; Hu, Jiangping [Purdue University and Chinese Academy of Sciences; Xiang, Tao [The Institute of Physics, Chinese Academy of Sciences; Dai, Pengcheng [University of Tennessee, Knoxville (UTK)

2012-01-01T23:59:59.000Z

124

On the Evaluation of Snippet Selection for WebCLEF A. Overwijk, D. Nguyen, C. Hauff, R.B. Trieschnigg, D. Hiemstra, F.M.G. de Jong  

E-Print Network (OSTI)

On the Evaluation of Snippet Selection for WebCLEF A. Overwijk, D. Nguyen, C. Hauff, R.B. Trieschnigg, D. Hiemstra, F.M.G. de Jong University of Twente, The Netherlands arnold.overwijk@gmail.com, dong

Hiemstra, Djoerd

125

On the Evaluation of Snippet Selection for Information Retrieval A. Overwijk, D. Nguyen, C. Hauff, R.B. Trieschnigg, D. Hiemstra, F.M.G. de Jong  

E-Print Network (OSTI)

On the Evaluation of Snippet Selection for Information Retrieval A. Overwijk, D. Nguyen, C. Hauff, R.B. Trieschnigg, D. Hiemstra, F.M.G. de Jong Twente University arnold.overwijk@gmail.com, dong

Hiemstra, Djoerd

126

X-ray and neutron scattering studies of the Rb?MnF? and Cu?â??őxMgxĚłGeO? in an external magnetic field  

E-Print Network (OSTI)

This thesis presents results of two scattering studies of low dimensional magnetic materials. The first is a neutron scattering study of Rb2MnF4, a nearly ideal two-dimensional square lattice Heisenberg antiferromagnet ...

Christianson, Rebecca J. (Rebecca Jean), 1973-

2001-01-01T23:59:59.000Z

127

Pressure induced tetragonal to monoclinic transition in RbN{sub 3} studied from first principles theory  

SciTech Connect

Alkali metal azides are well known for their application as explosives and gas generators. They are used as precursors in synthesis of polymeric nitrogen, an ultimate green high energy density material. Among the alkali metal azides, rubidium azide RbN{sub 3} crystallizes in tetragonal structure with linear azide ions arranged in layers and binds through weak dispersive interactions. In this present work, we have studied the structural stability, electronic structure and optical properties of solid RbN{sub 3} by using van der Waals corrected density functional theory. We find that the ambient tetragonal structure undergoes a structural transition to monoclinic structure at 0.72 GPa, which is in good agreement with the experimental transition pressure of less than 1 GPa. The phonon frequencies at the gamma point are calculated and found that the lattice mode Eg softens under pressure which may supports the structural phase transition. The electronic band structure and optical properties are calculated by using Tran Blaha-modified Becke Johnson (TB-mBJ) functional and found that solid RbN{sub 3} is an insulator with a gap of 5.976 eV and the optical absorption starts with the UV light of wave length 207.5 nm.

Vaitheeswaran, G., E-mail: gvsp@uohyd.ernet.in; Babu, K. Ramesh, E-mail: gvsp@uohyd.ernet.in [Advanced Centre of Research in High Energy Materials (ACRHEM), University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad-500046 (India)

2014-04-24T23:59:59.000Z

128

Software Engineering Model Schedule -(with CS 1131) example only; actual schedule may vary; see your academic dept. Includes 3 units of co-curricular activities.  

E-Print Network (OSTI)

Software Engineering Model Schedule - (with CS 1131) example only; actual schedule may vary; see FALL SPRING FALL SPRING CS 1000 1 CS 2321 3 CS 1141 2 CS 3141 3 CS 1131 5 MA 2160 4 CS 2311 3 CS 3421 4 Activity (1) Total 17 Total 15 Total 14-15 Total 16-17 3rd Year 4th Year FALL SPRING FALL SPRING CS 3311 3

129

CS 105: Algorithms (Grad) Approximation Algorithms (continued) Feb 21, 2005  

E-Print Network (OSTI)

.g. Clique. = O(log n), e.g. Set Cover. = O(1), e.g. Vertex Cover. Page 1 of 7 #12;CS 105: Algorithms (Grad Algorithms: Vertex Cover 1.1 Introduction to Approximation Algorithms There are several optimization problems (TSP) - finding a minimum cost tour of all cities ďż˝ Vertex Cover - find minimum set of vertex

Chakrabarti, Amit

130

stanford hci group / cs376 Scott Klemmer 17 October 2006  

E-Print Network (OSTI)

1 stanford hci group / cs376 Scott Klemmer · 17 October 2006 Remote Collaboration Paul Badger is highly culturally dependent e.g., Southern Europe has closer boundaries for personal space than America (tables) The Papier-Mâché toolkit (vision, rfid, barcode) iROS and the PatchPanel (interactive rooms

Klemmer, Scott

131

CS 4750-001 Database Systems -Spring 2012 ENGR (17672)  

E-Print Network (OSTI)

of 12 The information in this document is private and confidential. Please handle accordingly. #12;CS-R diagrams. DB Security - it was well layed out, easy to follow, and effective. How to build a server the material sql - very relevant subject matter & will def be used in the future Distributed Databases

Sherriff, Mark S.

132

CS-3388 Computer Graphics Fall 2014 Table of Contents  

E-Print Network (OSTI)

: A wire-mesh model of a once famous teapot #12;CS-3388 Computer Graphics Fall 2014 Representing Objects Illustration 1 shows a triangulation of 3D points that create a teapot. Various methods exist to define for the object. Illustration 2: A mirror-like rendering of the teapot Illustration 3: A rendering of the teapot

Beauchemin, Steven S.

133

Autonomic Computer Systems CS321: Group Communication, virt. Synchrony,  

E-Print Network (OSTI)

Autonomic Computer Systems CS321: Group Communication, virt. Synchrony, Paxos and Chubby October 2 Procedure Call Semantics · Group Communication: ­ Reliable Broadcast ­ Replication ­ More on Broadcast-10-02, 6/57 #12;Oral Message Protocol (2) maj=green maj=greenmaj=green L1 L2 L3L0 round 0 round 1 maj=green

Vetter, Thomas

134

Comparison of CsBr and KBr coated Cu photocathodes: Effects of...  

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

Comparison of CsBr and KBr coated Cu photocathodes: Effects of laser irradiation and work function changes. Abstract: Thin films (7 nm layers) of CsBr and KBr were deposited...

135

Cs4(In0.27Ge0.73)15Ge8  

Science Journals Connector (OSTI)

It contains the standardized crystallographic data set of Cs8In8Ge38 representing the structure type Cs4(In0.27Ge0.73)15Ge8.

P. Villars; K. Cenzual; J. Daams…

2004-01-01T23:59:59.000Z

136

E-Print Network 3.0 - adobe photoshop cs3 Sample Search Results  

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

Grafikbearbeitungssoftware: - Ulead DVD PowerTools 2 - Adobe Photoshop CS3 - Windows Media Encoder Wiedergabesoftware: - Windows Media... Grafikbearbeitungssoftware: - Adobe...

137

Nested Velocity Feedback Control -1 Presented at CS 2007 Dr Richard Mitchell 2007  

E-Print Network (OSTI)

Nested Velocity Feedback Control - 1 Presented at CS 2007 © Dr Richard Mitchell 2007 Nested tolerant to changes in the plant under control #12;Nested Velocity Feedback Control - 2 Presented at CS path #12;Nested Velocity Feedback Control - 3 Presented at CS 2007 © Dr Richard Mitchell 2007 Cherry

Mitchell, Richard

138

Record of Categorical Exclusion (CS) Determination, Office of Electricity  

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

State/Regional/Local Assistance for State/Regional/Local Assistance for Interconnection Transmission Planning and Ana Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): American Recovery and Reinvestment Act of 2009 (Recovery Act) State/Regional/Local Assistance for Interconnection Transmission Planning and Ana Based on OE's review of the information concerning the proposal action, the NEPA compliance Officer has determined that the proposed action fits within the specified class of action, other regulatory requirements set forth are met, and proposed action is hereby categorically excluded from further NEPA review. Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): American Recovery and Reinvestment

139

Record of Categorical Exclusion (CS) Determination, Office of Electricity  

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

Smart Grid Investment Grant Program Smart Grid Investment Grant Program (EISA 1306) Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): American Recovery and Reinvestment Act of 2009 (Recovery Act) Smart Grid Investment Grant Program (EISA 1306) Based on OE's review of the information concerning the proposal action, the NEPA compliance Officer has determined that the proposed action fits within the specified class of action, other regulatory requirements set forth are met, and proposed action is hereby categorically excluded from further NEPA review. Record of Categorical Exclusion (CS) Determination, Office of Electricity Delivery and Energy Reliability (OE): American Recovery and Reinvestment Act of 2009 (Recovery Act) Smart Grid Investment Grant Program (EISA 1306)

140

Optimization of Photodiode Readout of CsI(Tl) Crystals  

E-Print Network (OSTI)

An experimental setup for CsI crystal readout studies and a standard electronic readout chain are introduced and used in order to measure differences in light yield and equivalent noise for different readout schemes (direct and wavelength shifter). The linearity of the system and two possibilities for determination of the equivalent noise energy are discussed. The setup is used to compare temperature and bias voltage dependence of different photodiode types. Thorough studies of different couplings of photodiodes and crystals result in similar values of equivalent noise energy well below the specifications of the TDR for wavelength shifter readout and direct readout with photodiodes glued on a carrier plate made of plexiglass that is in optical contact with the crystal. contact: brose@pktw03.phy.tu-dresden.de The aims of the studies described in this note are a comparison of different readout schemes (wavelength shifter, direct) for large CsI(Tl) crystals with regard to li...

Brose Dahlinger Eckstein; J. Brose; G. Dahlinger; P. Eckstein; K. R. Schubert

1995-01-01T23:59:59.000Z

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


141

Pretreatment/Radionuclide Separations of Cs/Tc from Supernates  

SciTech Connect

Significant improvements have been made in ion exchange and solvent extraction materials and processes available for separation of the radionuclides cesium and technetium from both acid and alkaline waste solutions. New ion exchange materials and solvent extraction reagents are more selective for Cs over sodium and potassium than previous materials. The higher selectivity gives higher Cs capacity and improved separation processes. Technetium removal has been improved by new ion exchange resins, which have either improved capacity or easier elution. Several different crown ethers have been shown to extract pertechnetate ion selectively over other anions. Organic complexants in some waste solutions reduce pertechnetate ion and stabilize the reduced species. Selective oxidation allows conversion to pertechnetate without oxidation of the organic complexants.

Thompson, M.C. [Westinghouse Savannah River Company, AIKEN, SC (United States)

1998-09-01T23:59:59.000Z

142

CS 105: Grad. Algorithms Winter 2005 MST VERIFICATION  

E-Print Network (OSTI)

Ancestors (LCA's). COMPUTE LCA'S: for each {u, v} # E - T : compute l = LCA(u, v) and put {u, v@cs.dartmouth.edu 2 LCA and Disjoint Set Union Maintain n elements under two operations. UNION(A, B, C) : C # A # B. LCA Algorithm : Given a rooted tree T , a set P of pairs of {u, v} # V and |P | = m Goal: Find LCA

Chakrabarti, Amit

143

CS322 Fall 1999 Module 5 (Search Issues)  

E-Print Network (OSTI)

. The aim of this assignment is to learn more about search, both advanced search techniques as well as how,semantics],[proofs]). 1 #12;CPSC 322 Fall 1999 Assignment 5 2 mod(m4,[intro],[search]). mod(m5,[search,symbols],[advanced_searchCS322 Fall 1999 Module 5 (Search Issues) Assignment 5 Due: 1:30pm, Wednesday 13 October 1999

Poole, David

144

Complex magnetic behavior of the sawtooth Fe chains in Rb2Fe2O(AsO4)2  

SciTech Connect

Results of magnetic eld and temperature dependent neutron diraction and magnetization mea- surements on oxy-arsenate Rb2Fe2O(AsO4)2 are reported. The crystal structure of this compound contains pseudo-one-dimensional [Fe2O6] sawtooth-like chains, formed by corner sharing isosce- les triangles of Fe3+ ions occupying two nonequivalent crystallographic sites. The chains extend innitely along the crystallographic b-axis and are structurally conned from one another via dia- magnetic (AsO4)3- units along the a-axis, and Rb+ cations along the c-axis direction. Neutron diraction measurements indicate the onset of a long range antiferromagnetic order below approxi- mately 25 K. The magnetic structure consists of ferrimagnetic chains which are antiferromagnetically coupled with each other. Within each chain, one of the two Fe sites carries a moment which lies along the b-axis, while the second site bears a canted moment in the opposite direction. Exter- nally applied magnetic eld induces a transition to a ferrimagnetic state, in which the coupling between the sawtooth chains becomes ferromagnetic. Magnetization measurements performed on optically-aligned single crystals reveal evidence for an uncompensated magnetization at low mag- netic elds that could emerge from to a phase-segregated state with ferrimagnetic inclusions or from antiferromagnetic domain walls. The observed magnetic states and the competition between them is expected to arise from strongly frustrated interactions within the sawtooth chains and relatively weak coupling between them.

Garlea, Vasile O [ORNL] [ORNL; Sanjeewa, Liurukara D. [Clemson University] [Clemson University; McGuire, Michael A [ORNL] [ORNL; Kumar, Pramod [Indian Institute of Information Technology] [Indian Institute of Information Technology; Sulejmanovic, Dino [Clemson University] [Clemson University; Hwu, Shiou-Jyh [Clemson University] [Clemson University

2014-01-01T23:59:59.000Z

145

Na, Mg, Ni and Cs distribution and speciation after long-term alteration of a simulated nuclear waste glass  

E-Print Network (OSTI)

distribution and speciation of Na, Mg, Ni and Cs in a simulated (inactive) nuclear waste glass were studied and Cs represent dose determining long-lived radionuclides (59 Ni, 135 Cs) in vitrified nuclear wasteNa, Mg, Ni and Cs distribution and speciation after long-term alteration of a simulated nuclear

146

Owen, R.B., Sandhu, N., 2000. Heavy metal accumulation and anthro-pogenic impacts on Tolo Harbour, Hong Kong. Mar. Pollut. Bull. 40,  

E-Print Network (OSTI)

.-M., 2003. Pollution history of the Masan Bay, southeast Korea, from heavy metals and foraminiferaOwen, R.B., Sandhu, N., 2000. Heavy metal accumulation and anthro- pogenic impacts on Tolo Harbour and tracer elements in sediments of the Ria de Vigo (NW Spain): an assessment of metal pollution. Mar. Pollut

Yu, K.N.

147

TTG magmatism in the Congo craton; a view from major and trace element geochemistry, RbSr and SmNd systematics: case  

E-Print Network (OSTI)

TTG magmatism in the Congo craton; a view from major and trace element geochemistry, Rb­Sr and Sm of the Sangmelima region (Ntem complex, Congo craton) in southern Cameroon range in modal composition from rocks. TTG intrusions in the Sangmelima region represent a major Archaean accretion event in the Congo craton

Siebel, Wolfgang

148

1 -SUBTIDAL 2 -INTERTIDAL RB ROCK UB UNCONSOLIDATED AB AQUATIC BED RF -REEF OW -OPEN WATER/ AB AQUATIC BED RF REEF RS ROCKY SHORE US -UNCONSOLIDATED  

E-Print Network (OSTI)

M - MARINE 1 - SUBTIDAL 2 - INTERTIDAL RB ­ ROCK UB ­ UNCONSOLIDATED AB ­ AQUATIC BED RF - REEF OW - OPEN WATER/ AB ­ AQUATIC BED RF­ REEF RS ­ ROCKY SHORE US - UNCONSOLIDATED BOTTOM BOTTOM Unknown Bottom ­ UNCONSOLIDATED AB ­ AQUATIC RF ­ REEF OW - OPEN WATER/ AB ­ AQUATIC RF­ REEF SB ­ STREAMBED RS - ROCKY US

Gray, Matthew

149

NREL: Wind Research - Viryd Technologies' CS8 Turbine Testing and Results  

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

Viryd Technologies' CS8 Turbine Testing and Results Viryd Technologies' CS8 Turbine Testing and Results Viryd Technologies CS8 wind turbine. Text Version As part of the National Renewable Energy Laboratory and U.S. Department of Energy (NREL/DOE) Independent Testing project, NREL is testing Viryd Technologies' CS8 small wind turbine at the National Wind Technology Center (NWTC). The CS8 is an upwind, horizontal-axis, three-bladed, stall controlled turbine rated at 8 kilowatts (kW). It has an 8.5-meter rotor diameter and is mounted on a guyed tilt-up lattice tower with a hub height of 24.9 meters. The CS8 uses a single-phase, grid-connected, induction generator that operates at 240 volts AC. Testing Summary Supporting data and explanations for data included in this table are provided in the final reports.

150

Lateral variation of 134Cs and 137Cs concentrations in surface seawater in and around the Japan Sea after the Fukushima Dai-ichi Nuclear Power Plant accident  

Science Journals Connector (OSTI)

A total of 82 surface seawater samples was collected in the Japan Sea and the southwestern Okhotsk Sea before and after the Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident. Analysis of 134Cs and 137Cs concentrations using low-background ?-spectrometry revealed that the 137Cs concentration of the samples collected in June 2011 was 1.5–2.8 mBq/L, which is approximately 1–2 times higher than the pre-accident 137Cs level, while the 134Cs concentration was less than detectable to 1 mBq/L. In addition to 134Cs being clearly detected (?1 mBq/L), 137Cs concentration in water samples from the northeastern Japan Sea (2–2.8 mBq/L) was also higher than that from the coast in the southwestern Japan Sea (?1.5 mBq/L). These higher concentrations in the northeastern Japan Sea could be ascribed to the atmospheric transport of nuclides from the FDNPP as aerosols and subsequent transport and dilution after delivery to the sea surface.

M. Inoue; H. Kofuji; S. Nagao; M. Yamamoto; Y. Hamajima; K. Yoshida; K. Fujimoto; T. Takada; Y. Isoda

2012-01-01T23:59:59.000Z

151

Software Engineering Model Schedule -(Starting with CS 1121) example only; actual schedule may vary; see your academic dept. Includes 3 units of co-curricular activities.  

E-Print Network (OSTI)

Software Engineering Model Schedule - (Starting with CS 1121) example only; actual schedule may Year 2nd Year FALL SPRING FALL SPRING CS 1000 1 CS 1122 3 CS 1141 2 CS 2311 3 CS 1121 3 MA 2160 4 CS Cocurricular Activity (1) Total 15 Total 15 Total 14-15 Total 16-17 3rd Year 4th Year FALL SPRING FALL SPRING

152

The Status Of GLAST CsI Calorimeter  

SciTech Connect

The GLAST Large Area Telescope (LAT) CsI calorimeter, which consists of 16 flight modules and 2 spare modules, was assembled in 2004-2005 by an international team from the USA, France and Sweden. Each module contains 96 CsI crystals supported by a carbon fiber composite structure and read out from both ends with silicon PIN photodiodes. Signals from the array of photodiodes are processed by custom analog ASICs and commercial ADCs. After assembly, each module underwent a full environmental test program including electromagnetic interference and compatibility, vibration, and thermal-vacuum test to flight-acceptance levels. The functional performance of each module was verified before and after each test, and calibration with cosmic muons and charge injection was performed throughout the test sequence. All 18 modules showed stable functioning over the few months of the assembly and test program. None of the 1728 crystals experienced mechanical or optical degradation. Integration of the calorimeter modules with the other detector and electronics subsystems into the complete Large Area Telescope began at SLAC in April 2005 and was completed in December 2005. The environmental testing of full LAT instrument is planned for summer 2006. Simultaneously the beam test of calibration unit made of spare modules is planned to be done at PS and SPS beam lines at CERN.

Chekhtman, A. [George Mason University/ Naval Research Laboratory, 4555 Overlook Ave, SW, Washington, DC 20375 (United States)

2006-10-27T23:59:59.000Z

153

Fluorescence from CsF ionic excimers excited by an electron beam  

SciTech Connect

Mixtures of rare gases and cesium fluoride vapors were excited by an intense relativistic electron beam. The fluorescence of the Cs[sup 2+]F[sup [minus

XYang, T.T.; Gylys, V.T.; Bower, R.D.; Harris, D.G. (Rocketdyne Division, Rockwell International, 6633 Canoga Avenue, Canoga Park, California 91303 (United States))

1992-08-01T23:59:59.000Z

154

EnergyCS Inc Energy Control Systems Engineering Inc | Open Energy...  

Open Energy Info (EERE)

Engineering Inc Jump to: navigation, search Name: EnergyCS Inc (Energy Control Systems Engineering, Inc) Sector: Services Product: String representation "Monrovia, Calif ... 4...

155

Optical measurement of Cs distribution in the large negative ion source  

SciTech Connect

To investigate a Cs behavior, optical diagnostic tools have been installed in the large negative ion source, an arc discharge used at large helical device neutral beam injector. A large Cs sputtering is observed during beam extraction due to the backstreaming H{sup +} ions. Distribution of Cs{sup +} light is uniform in the case of a balanced arc discharge, but large increase of Cs{sup +} light during beam extraction is observed in a nonuniform arc discharge. Controlling of the discharge uniformity is effective to reduce the local heat loading from the backstreaming H{sup +} ions at the backplate of ion source.

Ikeda, K.; Nagaoka, K.; Takeiri, Y.; Fantz, U.; Kaneko, O.; Osakabe, M.; Oka, Y.; Tsumori, K. [National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292 (Japan); Max-Planck-Institut fuer Plasmaphysik, EURATOM Association, D-85748 Garching (Germany); National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292 (Japan)

2008-02-15T23:59:59.000Z

156

ECE 554: Computer Architecture -ECE 452 or CS470 or written consent of instructor  

E-Print Network (OSTI)

ECE 554: Computer Architecture - ECE 452 or CS470 or written consent of instructor Pre: - Factors affecting computer system performance - Instruction level parallelism (ILP) Advanced pipelining

Schumacher, Russ

157

E-Print Network 3.0 - antarctica 137cs 40k Sample Search Results  

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

6 MARSAME Appendix C C. EXAMPLES OF COMMON RADIONUCLIDES Summary: Ra and progeny Depleted uranium collimators Metal Foundry 40 K 60 Co 137 Cs Thorium series... Manufacturing...

158

134Cs and 137Cs activities in coastal seawater along Northern Sanriku and Tsugaru Strait, northeastern Japan, after Fukushima Dai-ichi Nuclear Power Plant accident  

Science Journals Connector (OSTI)

A total of 37 seawater samples were collected at 10 sites along the coastline of the Northern Sanriku and Tsugaru Strait, 250–450 km north of the Fukushima Dai-ichi Nuclear Power Plant in April–December 2009 and May–June 2011, and analyzed for 134Cs and 137Cs activities using low-background ?-spectrometry. The 134Cs and 137Cs activities measured in these samples in May 2011 were found to be 2–3 mBq/L and 2.5–4 mBq/L, respectively. By June, these values had decreased by 25–45%/month and 5–30%/month, respectively. These results can be plausibly explained by surface infusion of these isotopes into the sea by atmospheric transport from Fukushima and their subsequent reduction by water migration to off-shore and deeper regions.

M. Inoue; H. Kofuji; Y. Hamajima; S. Nagao; K. Yoshida; M. Yamamoto

2012-01-01T23:59:59.000Z

159

Export.gov - Welcome to CS World Bank  

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

World Bank World Bank Print | E-mail Page World Bank World Bank Home Doing Business with the World Bank Services for U.S. Companies Trade Events Links About the World Bank New Projects from the World Bank Understanding the Project Cycle The PSLO Program Contact Us Our Worldwide Network About Us Press Room Other Multilateral Development Banks Other Worldwide Markets Welcome to CS World Bank! The World Bank lends and invests billions of dollars in developing countries every year. This constant stream of funds is used to buy goods, consulting services, and civil works projects that contribute to economic development in those countries. The system of doing business with the World Bank is similar to government procurement systems in many countries. Our Global Network at Work Learn how a small manufacturing company began exporting to Turkey

160

A Multi-Sample Cs-Sputter Negative Ion Source  

SciTech Connect

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

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

1998-10-05T23:59:59.000Z

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


161

JOURNAL DE PHYSIQUE Colloque C6, supplPment au no 8, Tome 39, aoiit 1978, page C6-743 EXCITATIONS IN THE ISING COMPOUND RbFeC13.2 H20  

E-Print Network (OSTI)

IN THE ISING COMPOUND RbFeC13.2 H20 Q.A.G. van Vlimmeren, C.H.W. Swiiste and W.J.M. de Jonge Department de spin (SCR) a dt8 observ6e dans l'antiferromagn6tique pseudo unidimensionnel d'Ising RbFeC13.2H20 in the pseudo one-dimensional canted Ising antiferromagnet RbFeC13.2H20. Due to the canting of the moments

Boyer, Edmond

162

CS 105: Algorithms (Grad) Set Cover and Application to Shortest Superstring  

E-Print Network (OSTI)

CS 105: Algorithms (Grad) Set Cover and Application to Shortest Superstring Valika K. Wan & Khanh algorithm produces set cover of size 4 by selecting the sets S1, S4, S5, S3 in order. Set-covering problem Page 1 of 9 #12;CS 105: Algorithms (Grad) Set Cover and Application to Shortest Superstring Valika K

Chakrabarti, Amit

163

Effectiveness of a computational thinking (CS0) course on student analytical skills  

Science Journals Connector (OSTI)

: In this paper, we describe the content and evaluation of a Computational Thinking (CS0) course developed to improve the analytical problem solving of students participating in the course. The course is targeted to students who are mathematically under-prepared ... Keywords: CS0, analytical skills, computational thinking, course effectiveness, critical thinking, problem solving

Michele Van Dyne; Jeffrey Braun

2014-03-01T23:59:59.000Z

164

Technical Report CS96466, CSE Dept., UCSD, January 1996 Determining Asynchronous Acyclic Pipeline Execution Times  

E-Print Network (OSTI)

Technical Report CS96­466, CSE Dept., UCSD, January 1996 Determining Asynchronous Acyclic Pipeline of California, San Diego La Jolla, California 92093­0114 fvdonalds,ferranteg@cs.ucsd.edu Abstract Pipeline in the body of a loop, are executed in parallel. A measure of the execution time of a pipeline is needed

Ferrante, Jeanne

165

CS/ECE 757: Advanced Computer Architecture II (Parallel Computer Architecture)  

E-Print Network (OSTI)

-Body Simulation: Barnes-Hut · Ocean Current Simulation: Ocean · VLSI Routing: Locus Route · Ray Tracing ­ Shoot · Simulate ocean currents · discretize in space and time Ocean Basin CS/ECE 757 10 (C) 2005 Mark D. Hill from;Page 5 CS/ECE 757 9 (C) 2005 Mark D. Hill from Adve, Falsafi, Lebeck, Reinhardt, Smith & Singh Ocean

Hill, Mark D.

166

9/8/2008 CS371S -Fall 2008 Behavior and State Machines  

E-Print Network (OSTI)

9/8/2008 CS371S - Fall 2008 Behavior and State Machines 1 Specification of Model Behavior Lecture Topics Behavioral Model State Machines Relation to Other Behavioral Models Derivation of State Machines for Single Classes Derivation of State Machines from System Level #12;9/8/2008 CS371S - Fall 2008 Behavior

Browne, James C.

167

What makes a good paper? CS6101 Exploration of Computer Science Research  

E-Print Network (OSTI)

; can't be taught in 1 hour. Sorry. CS6101 What makes a good paper? 4 #12;Excellent Writing Two aspects or biased? What messages are the figures trying to convey? Why does the proposed algorithm perform better of "Why" Why is it done this way? Why does it work? Why is this method better? CS6101 What makes a good

Leow, Wee Kheng

168

On the Possibility of Using Protonic Solid Electrolyte CsHSO4 in Hydrogen Fuel Cells  

Science Journals Connector (OSTI)

Electrochemical parameters of an H2|air fuel cell with a membrane of solid electrolyte CsHSO4 or composites (1 ? x)CsHSO4/xSiO2 (x = 0.1–0.3) and different electrodes are measured at 175 °C. The maximal power (3....

G. V. Lavrova; M. V. Russkikh; V. G. Ponomareva…

169

Quadrupole moments of high spin isomers in Fr213, Fr212, and Fr211  

Science Journals Connector (OSTI)

The level mixing spectroscopy method has been applied to measure the static quadrupole moments of six isomeric states in Fr213, Fr212, and Fr211 (Z=87). For isomers with the proton configuration ?h9/24i13/2 a large increase of the quadrupole moment was observed with the removal of neutrons from the closed N=126 core: Q(29/2+,213Fr)=-70(7) e fm2, Q(15-,212Fr)=-80(12) e fm2, and Q(29/2+,211Fr)=-107(18) e fm2. Quadrupole moments for very high spin states were also measured: Q(65/2-,213Fr)=-219(53) e fm2, Q(27-,212Fr)=-152(31) e fm2, and Q(45/2-,211Fr) =-198(56) e fm2. The observed values are in good agreement with shell-model calculations, but are lower than that predicted using the deformed-independent particle model. The implantation behavior of Fr in a Tl host is also discussed.

F. Hardeman; G. Neyens; G. Scheveneels; R. Nouwen; G. S’heeren; M. Van Den Bergh; R. Coussement; A. P. Byrne; R. Müsseler; H. Hübel; G. Baldsiefen

1991-02-01T23:59:59.000Z

170

Fall 2003 Series  

E-Print Network (OSTI)

Neel Mehta (So. AAE), Jesse Millikin (So. CS), Jeffrey D. Moser (Sr. MA/CS), Cyrus. Robinson (Fr. ?), Henry Shin (Jr. ?), Steve Taylor (Fr. AAE), Chris Willmore (?

1910-30-91T23:59:59.000Z

171

Identification of the slow E3 transition {sup 136}Cs{sup m{yields}136}Cs with conversion electrons  

SciTech Connect

We performed at ISOLDE the spectroscopy of the decay of the 8{sup -} isomer in {sup 136}Cs by {gamma} and conversion-electron detection. For the first time the excitation energy of the isomer and the multipolarity of its decay have been measured. The half-life of the isomeric state was remeasured to T{sub 1/2}=17.5(2) s. This isomer decays via a very slow 518-keV E3 transition to the ground state. In addition to this, a much weaker decay branch via a 413-keV M4 and a subsequent 105-keV E2 transition has been found. Thus we have found a new level at 105 keV with spin 4{sup +} between the isomeric and the ground state. The results are discussed in comparison to shell-model calculations.

Wimmer, K. [Fakultaet fuer Physik, Ludwig-Maximilians-Universitaet Muenchen, D-85748 Garching (Germany); Physik Department E12, Technische Universitaet Muenchen, D-85748 Garching (Germany); Koester, U. [Institut Laue Langevin, F-38042 Grenoble Cedex 9 (France); Hoff, P. [Department of Chemistry, University of Oslo, N-0315 Oslo (Norway); Kroell, Th. [Physik Department E12, Technische Universitaet Muenchen, D-85748 Garching (Germany); Institut fuer Kernphysik, Technische Universitaet Darmstadt, D-64289 Darmstadt (Germany); Kruecken, R. [Physik Department E12, Technische Universitaet Muenchen, D-85748 Garching (Germany); Lutter, R.; Morgan, Th.; Schwerdtfeger, W.; Thirolf, P. G. [Fakultaet fuer Physik, Ludwig-Maximilians-Universitaet Muenchen, D-85748 Garching (Germany); Mach, H. [Department of Nuclear and Particle Physics, Uppsala University, S-75121 Uppsala (Sweden); Sarkar, S. [Department of Physics, Bengal Engineering and Science University, Shibpur, Howrah 711103 (India); Sarkar, M. Saha [Nuclear and Atomic Physics Division, Saha Institute of Nuclear Physics, Kolkata 700064 (India); Srivastava, P. C. [Grand Accelerateur National d'Ions Lourds, CEA/DSM-CNRS/IN2P3, B.P. 55027, F-14076 Caen Cedex 5 (France); Nuclear Physics Group, Department of Physics, University of Allahabad, Allahabad 211002 (India); Van Isacker, P. [Grand Accelerateur National d'Ions Lourds, CEA/DSM-CNRS/IN2P3, B.P. 55027, F-14076 Caen Cedex 5 (France)

2011-07-15T23:59:59.000Z

172

CS 550: Advanced Operating Systems This course covers general issues of design and implementation of advanced modern operating systems.  

E-Print Network (OSTI)

CS 550: Advanced Operating Systems Objectives This course covers general issues of design and implementation of advanced modern operating systems. The focus is on issues that are critical to the applications Operating Systems - CS Dept, Illinois ... 1 of 1 #12;

Heller, Barbara

173

Polymorphic single crystal {r_reversible} single crystal transition in K{sub 0.975}Rb{sub 0.025}NO{sub 3}  

SciTech Connect

Polymorphic transformations in K{sub 0.975}Rb{sub 0.025}NO{sub 3} single crystals have been investigated by optical microscopy and X-ray diffraction. The equilibrium temperature between modifications II and III has been determined. It is established that the crystal growth at II {r_reversible} III polymorphic transitions is accompanied by the formation and growth of daughter-modification nuclei in the matrix crystal.

Asadov, Yu. G., E-mail: yusifasadov@rambler.ru; Nasirov, E. V. [Azerbaijan National Academy of Sciences, Institute of Physics (Azerbaijan)

2010-09-15T23:59:59.000Z

174

Identification of excited states in the Tz=+12 nucleus 75Rb: The quest for experimental signatures of collective neutron-proton correlations  

Science Journals Connector (OSTI)

Excited states in the Tz=12 nucleus 75Rb were observed for the first time using the 40Ca(40Ca,?p) reaction at 128 MeV. Identification was achieved using events detected by the Daresbury recoil separator in coincidence with ? rays detected in the 45 element EUROGAM I Ge-detector array. Threefold events were used to build a decay scheme which consists of two rotational bands observed to I?=(452+) and I?=(332-). The positive parity band in 75Rb behaves similarly to a negative-parity band in 74Kr and contains a region of alignment at ???0.75 MeV. These data, and those of 77Sr, can be interpreted by treating protons and neutrons separately in a cranked shell model approach despite a recent suggestion for the presence of T=1 neutron-proton pairing correlations in the neighboring self-conjugate, odd-odd 74Rb ground state band. Our study suggests that some experimental observables such as the energy levels and moments of inertia, may not be able to differentiate between different T=1 pairing phases in these Tz=12 nuclei.

C. J. Gross; D. Rudolph; W. Satu?a; J. Alexander; C. Baktash; P. J. Coleman-Smith; D. M. Cullen; R. A. Cunningham; J. D. Garrett; W. Gelletly; A. Harder; M. K. Kabadiyski; I. Lazarus; K. P. Lieb; H. A. Roth; D. G. Sarantites; J. A. Sheikh; J. Simpson; Ö. Skeppstedt; B. J. Varley; D. D. Warner

1997-08-01T23:59:59.000Z

175

Bicycle Research Bibliography Updated 6/04 Howat, C.S., editor, 1993. USCF Mechanics' Handbook, First Edition. United  

E-Print Network (OSTI)

Bicycle Research Bibliography ­ Updated 6/04 BOOKS Howat, C.S., editor, 1993. USCF Mechanics Edition. USA Cycling, Colorado Springs, Colorado. Howat, C.S., 2004. The Racing Bicycle Mechanics. TECHNICAL PRESENTATIONS Howat, C.S., 1994. Hazards Analysis of Bicycling: Consumer and Professional

Howat, Colin S. "Chip"

176

Performance Study of K2CsSb Photocathode Inside a DC High Voltage Gun  

SciTech Connect

In the past decade, there has been considerable interest in the generation of tens of mA average current in a photoinjector. Until recently, GaAs:Cs cathodes and K{sub 2}CsSb cathodes have been tested successfully in DC and RF injectors respectively for this application. Our goal is to test the K{sub 2}CsSb photocathode inside a DC gun. Since the multialkali cathode is a compound with constant characteristics over its entire thickness, we anticipate that the lifetime issues seen in GaAs:Cs due to surface damage by ion bombardment would be minimized. Hence successful operation of the K{sub 2}CsSb cathode in a DC gun could lead to a relatively robust electron source capable of delivering ampere level currents. In order to test the performance of a K{sub 2}CsSb cathode in a DC gun, we have designed and built a load lock system that allows the fabrication of the cathode at Brookhaven National Lab (BNL) and its testing at Jefferson Lab (JLab). In this paper, we will present the performance of the K{sub 2}CsSb photocathode in the preparation chamber and in the DC gun.

McCarter J. L.; Rao T.; Smedley, J.; Grames, J.; Mammei, R.; Poelker, M.; Suleiman, R.

2011-09-01T23:59:59.000Z

177

Performance Study of K2CsSb Photocathode inside a DC High Voltage Gun  

SciTech Connect

In the past decade, there has been considerable interest in the generation of tens of mA average current in a photoinjector. Until recently, GaAs:Cs cathodes and K2CsSb cathodes have been tested successfully in DC and RF injectors respectively for this application. Our goal is to test the GaAs:Cs in RF injector and the K2CsSb cathode in the DC gun in order to widen our choices. Since the multialkali cathode is a compound with uniform stochiometry over its entire thickness, we anticipate that the life time issues seen in GaAs:Cs due surface damage by ion bombardment would be minimized with this material. Hence successful operation of the K2CsSb cathode in DC gun could lead to a relatively robust electron source capable of delivering ampere level currents. In order to test the performance of K2CsSb cathode in a DC gun, we have designed and built a load lock system that would allow the fabrication of the cathode at BNL and its testing at JLab. In this paper, we will present the design of the load-lock system, cathode fabrication, and the cathode performance in the preparation chamber and in the DC gun.

T. Rao, J. Smedley, J.M. Grames, R. Mammei, J.L. McCarter, M. Poelker, R. Suleiman

2011-03-01T23:59:59.000Z

178

Separation of CsCl from a Ternary CsCl-LiCl-KCl Salt via a Melt Crystallization Technique for Pyroprocessing Waste Minimization  

SciTech Connect

A parametric study has been conducted to identify the effects of several parameters on the separation of CsCl from molten LiCl-KCl salt via a melt crystallization process. A reverse vertical Bridgman technique was used to grow the salt crystals. The investigated parameters were: (1) the advancement rate, (2) the crucible lid configuration, (3) the amount of salt mixture, (4) the initial composition of CsCl, and (5) the temperature difference between the high and low furnace zones. From each grown crystal, samples were taken axially and analyzed using inductively coupled plasma mass spectrometry (ICP-MS). Results show that CsCl concentrations at the top of the crystals were low and increased to a maximum at the bottom of the salt. Salt (LiCl-KCl) recycle percentages for the experiments ranged from 50% to 75% and the CsCl composition in the waste salt was low. To increase the recycle percentage and the concentration of CsCl in the waste form, the possibility of using multiple crystallization stages was explored to further optimize the process. Results show that multiple crystallization stages are practical and the optimal experimental conditions should be operated at 5.0 mm/hr rate with a lid configuration and temperature difference of 200 °C for a total of five crystallization stages. Under these conditions, up to 88% of the salt can be recycled.

Ammon Williams; Supathorn Phongikaroon; Michael Simpson

2013-02-01T23:59:59.000Z

179

DOSE TO CURIE DETERMINATION FOR CONTAINERS WITH MEASURABLE CS-137  

SciTech Connect

The Next Generation Retrieval (NGR) project will retrieve suspect transuranic (TRU) waste containers from Trenches 17 and 27 in the 218-E-12B (12B) burial ground. The trenches were in operation from May 1970 through October 1972. A portion of the retrieved containers that will require shipment to and acceptance at a treatment, storage, and disposal (TSD) facility and the containers will be either remote-handled (RH) and/or contact-handled (CH). The method discussed in this document will be used for the RH and some of the CH containers to determine the radionuclide inventory. Waste disposition (shipment and TSD acceptance) requires that the radioactive content be characterized for each container. Source-term estimates using high resolution, shielded, gamma-ray scan assay techniques cannot be performed on a number of RH and other containers with high dose rates from {sup 137}Cs-{sup 137m}Ba. This document provides the method to quantify the radioactive inventory of fission product gamma emitters within the containers based on the surface dose rate measurements taken in the field with hand-held survey instruments.

RATHBUN LA; ANDERSON JD; SWAN RJ

2010-12-03T23:59:59.000Z

180

Measurements of CsI band-gap closure to 93 GPa  

Science Journals Connector (OSTI)

Infrared-absorption measurements to a peak pressure of 93 GPa document the pressure-induced closure of the band gap of CsI to about 4450 cm-1 (0.55 eV). In accord with previous spectroscopic measurements to 60 GPa, our data show that the band gap of CsI decreases continuously with pressure, and metallization (complete closure of the gap) is expected to occur above 100 GPa. A recent claim that CsI becomes metallic at 65±5 GPa is therefore spurious.

Quentin Williams and Raymond Jeanloz

1986-01-13T23:59:59.000Z

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


181

link to book here : http://www.e-elgar.co.uk/Bookentry_Main.lasso?id=3689 alternative link to chapter from here : http://rb.ec-lille.fr  

E-Print Network (OSTI)

and skills (Gartner, 1988, Carter et al., 1995, Loraine et al. 1998), but this approach does not make

Paris-Sud XI, Université de

182

raulin@ivry.cnrs.fr Pages web perso : http://www.ivry.cnrs.fr/lau/rubrique.php?id_rubrique=91  

E-Print Network (OSTI)

raulin@ivry.cnrs.fr Pages web perso : http://www.ivry.cnrs.fr/lau/rubrique.php?id_rubrique=91), Strasbourg : France (1988)" #12;raulin@ivry.cnrs.fr Pages web perso : http://www.ivry.cnrs.fr/lau/rubrique.php?id_rubrique=91 halshs-00010548,version1-14Jan2010 #12;raulin@ivry.cnrs.fr Pages web perso : http://www.ivry.cnrs.fr/lau/rubrique.php

Paris-Sud XI, Université de

183

Luminescent properties of phosphor converted LED using an orange-emitting Rb{sub 2}CaP{sub 2}O{sub 7}:Eu{sup 2+} phosphor  

SciTech Connect

Graphical abstract: Display Omitted Highlights: ? Phase-pure Rb{sub 2}CaP{sub 2}O{sub 7}:Eu{sup 2+} powders were synthesized by a solid state reaction process. ? The optimum emission intensity was observed at the Eu{sup 2+} ion concentration of 0.006. ? The dipole–dipole interaction was the major concentration quenching mechanism. ? The pc-LED coated with Rb{sub 2}CaP{sub 2}O{sub 7}:Eu{sup 2+} had higher CRI than commercial red phosphor. -- Abstract: A series of orange-emitting Rb{sub 2}CaP{sub 2}O{sub 7}:Eu{sup 2+} phosphors were synthesized by a conventional solid-state reaction method. The as-prepared phosphors were characterized by X-ray powder diffraction (XRD), fluorescence spectroscopy, and spectroradiometry. XRD showed that all prepared samples exhibited a monoclinic Rb{sub 2}CaP{sub 2}O{sub 7} phase. Fluorescence spectroscopy showed that the photoluminescence efficiency of Rb{sub 2}Ca{sub 1?x}P{sub 2}O{sub 7}:Eu{sub x}{sup 2+} phosphors increased with increasing Eu{sup 2+} concentration until x = 0.006, then decreased at higher concentrations, due to a concentration quenching effect. The thermal activation energy was also measured to be 0.40 eV. Furthermore, a phosphor-converted LED (pc-LED) coated with Rb{sub 2}Ca{sub 0.994}P{sub 2}O{sub 7}:Eu{sub 0.006}{sup 2+} was fabricated, which exhibited bright orange emission under a forward bias, from 200 to 300 mA. The color rendering index (CRI) of pc-LED coated with Rb{sub 2}Ca{sub 0.994}P{sub 2}O{sub 7}:Eu{sub 0.006}{sup 2+} was higher than the CRI of pc-LED coated with commercial red phosphor, due to the broad emission band of Rb{sub 2}CaP{sub 2}O{sub 7}:Eu{sup 2+} phosphor. In applying with three-band pc-LEDs, moreover, white pc-LED using Rb{sub 2}CaP{sub 2}O{sub 7}:Eu{sup 2+} phosphor had a higher CRI, than using commercial phosphor. These results indicated that Rb{sub 2}CaP{sub 2}O{sub 7}:Eu{sup 2+} phosphor could be a good candidate for a near-UV based w-LED.

Song, Hee Jo; Yim, Dong Kyun [Department of Materials Science and Engineering, College of Engineering, Seoul National University, Daehak-dong, Gwanak-gu, Seoul 151-744 (Korea, Republic of)] [Department of Materials Science and Engineering, College of Engineering, Seoul National University, Daehak-dong, Gwanak-gu, Seoul 151-744 (Korea, Republic of); Cho, In-Sun [Department of Mechanical Engineering, Stanford University, CA 94305 (United States)] [Department of Mechanical Engineering, Stanford University, CA 94305 (United States); Roh, Hee-Suk; Kim, Ju Seong [Department of Materials Science and Engineering, College of Engineering, Seoul National University, Daehak-dong, Gwanak-gu, Seoul 151-744 (Korea, Republic of)] [Department of Materials Science and Engineering, College of Engineering, Seoul National University, Daehak-dong, Gwanak-gu, Seoul 151-744 (Korea, Republic of); Kim, Dong-Wan, E-mail: dwkim@ajou.ac.kr [Department of Materials Science and Engineering, Ajou University, Woncheon-dong, San 5, Yeongtong-gu, Suwon 443-749 (Korea, Republic of)] [Department of Materials Science and Engineering, Ajou University, Woncheon-dong, San 5, Yeongtong-gu, Suwon 443-749 (Korea, Republic of); Hong, Kug Sun, E-mail: kshongss@plaza.snu.ac.kr [Department of Materials Science and Engineering, College of Engineering, Seoul National University, Daehak-dong, Gwanak-gu, Seoul 151-744 (Korea, Republic of)

2012-12-15T23:59:59.000Z

184

2003 CS 647b Report Transmittal Letter to Dick Cheney | Department of  

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

2003 CS 647b Report Transmittal Letter to Dick Cheney 2003 CS 647b Report Transmittal Letter to Dick Cheney 2003 CS 647b Report Transmittal Letter to Dick Cheney 2003 CS 647b Report Transmittal Letter to Dick Cheney This letter is in response to the annual Competitive Sourcing reporting requirement contained in section 647(b) of Division F of the Consolidated Appropriations Act, for FY 2004, P.L. 108-199. The enclosed report on the Department of Energy's (DOE) Competitive Sourcing program complies with the agency reporting elements outlined in P.L. 108-199 for submitting the annual Congressional Competitive Sourcing Activity Report. In summary, DOE's Fiscal Year (FY) 2003 Competitive Sourcing Activity Report includes cost, savings, Federal full-time equivalent (FTE), and other information on the Department's

185

CS193J Handout #5 Winter 1998 1/13/98  

E-Print Network (OSTI)

CS193J Handout #5 Winter 1998 1/13/98 Decomposition This handout originally written by Nick or independent to merit being put in its own function? A function should solve one problem. Its parameters should

California at Berkeley, University of

186

CS193J Handout #5 Winter 1998 1/13/98  

E-Print Network (OSTI)

CS193J Handout #5 Winter 1998 1/13/98 Decomposition This handout originally written by Nick the parameters be? When is a subtask sufficiently complex or independent to merit being put in its own function

California at Berkeley, University of

187

A comparison of {sup 137}Cs radioactivity in localized evergreen and deciduous plant species  

SciTech Connect

A vegetation study at the Comanche Peak Steam Electric Station (CPSES) near Glen Rose, Texas was conducted in 1991 and 1992. The CPSES is a commercial nuclear power plant owned and operated by Texas Utilities Electric of Dallas, Texas. The US Nuclear Regulatory Commission (USNRC) requires the CPSES to routinely sample broadleaf vegetation in place of milk samples. Few commercial dairies exist in the vicinity. Broadleaf tree species are scarce because the climate and local limestone geology have produced a dry rolling hill topography. An evergreen juniper is the dominant tree species. Few broadleaves during the winter season have hindered year-round sampling. This study compares the environmental {sup 137}Cs concentrations between broadleaf and evergreen foliage at CPSES. Soil {sup 137}Cs concentrations from each vegetation location were also compared to the foliage {sup 137}Cs concentrations. The study`s objective was to determine if the deciduous and evergreen vegetation {sup 137}Cs concentrations are statistically the same.

Rangel, R.C.

1996-05-01T23:59:59.000Z

188

137Cs Trapped by Biomass within 20 km of the Fukushima Daiichi Nuclear Power Plant  

Science Journals Connector (OSTI)

137Cs Trapped by Biomass within 20 km of the Fukushima Daiichi Nuclear Power Plant ... † Department of Health and Environmental Sciences, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan ...

Akio Koizumi; Tamon Niisoe; Kouji H. Harada; Yukiko Fujii; Ayumu Adachi; Toshiaki Hitomi; Hirohiko Ishikawa

2013-07-26T23:59:59.000Z

189

Time-Resolved Infrared Spectral Photography Studies of Shock-Induced Chemistry in CS2  

Science Journals Connector (OSTI)

Experiments using time-resolved infrared spectral photography (TRISP) in the 6–8.5 µm range to study explosively driven shocks in liquid CS2 are described. In this range, the temporal resolution of the TRISP syst...

A. M. Renlund; S. A. Sheffield; W. M. Trott

1986-01-01T23:59:59.000Z

190

CS2SAT: THE CONTROL SYSTEMS CYBER SECURITY SELF-ASSESSMENT TOOL  

SciTech Connect

The Department of Homeland Security National Cyber Security Division has developed the Control System Cyber Security Self-Assessment Tool (CS2SAT) that provides users with a systematic and repeatable approach for assessing the cyber-security posture of their industrial control system networks. The CS2SAT was developed by cyber security experts from Department of Energy National Laboratories and with assistance from the National Institute of Standards and Technology. The CS2SAT is a desktop software tool that guides users through a step-by-step process to collect facility-specific control system information and then makes appropriate recommendations for improving the system’s cyber-security posture. The CS2SAT provides recommendations from a database of industry available cyber-security practices, which have been adapted specifically for application to industry control system networks and components. Each recommendation is linked to a set of actions that can be applied to remediate-specific security vulnerabilities.

Kathleen A. Lee

2008-01-01T23:59:59.000Z

191

Development of thin CsHSO4 membrane electrode assemblies for electrolysis and fuel cell applications.  

E-Print Network (OSTI)

??In this work the use of the solid acid CsHSO4 as an electrolyte in a hydrogen/oxygen fuel cell or the disassociation of water into hydrogen… (more)

Ecklund-Mitchell, Lars E

2008-01-01T23:59:59.000Z

192

1 Di Neujahr 1 Fr 1 Fr 1 Mo Ostermontag 2 Mi 2 Sa 2 Sa 2 Di  

E-Print Network (OSTI)

1 Di Neujahr 1 Fr 1 Fr 1 Mo Ostermontag 2 Mi 2 Sa 2 Sa 2 Di 3 Do 3 So 3 So 3 Mi 4 Fr 4 Mo 4 Mo 4 Do 5 Sa 5 Di 5 Di 5 Fr 6 So 6 Mi 6 Mi 6 Sa 7 Mo 7 Do 7 Do 7 So 8 Di 8 Fr 8 Fr 8 Mo 9 Mi 9 Sa 9 Sa 9 Di 10 Do 10 So 10 So 10 Mi 11 Fr 11 Mo 11 Mo 11 Do 12 Sa 12 Di 12 Di 12 Fr 13 So 13 Mi 13 Mi Power

GrĂĽbel, Rudolf

193

Calculation of the nuclear spin-dependent parity-nonconserving amplitude for the (7s,F=4)?(7s,F=5) transition in Fr  

Science Journals Connector (OSTI)

Many-body calculation of nuclear spin-dependent parity-nonconserving amplitude for 7s,F=4?7s,F=5 transition between hyperfine sublevels of the ground state of 211Fr is carried out. The final result is ?7s,F=5||dPNC||7s,F=4?=-0.49×10-10 i??a.u., where ? is the dimensionless coupling constant. This is approximately an order of magnitude larger than similar amplitude in Cs. The dominant contribution to ? is associated with the anapole moment of the nucleus.

S. G. Porsev and M. G. Kozlov

2001-11-14T23:59:59.000Z

194

CS 2011, 15 17 June 2011, T-Labs Berlin Germany Innovative Internet  

E-Print Network (OSTI)

11th I2 CS 2011, 15 ­ 17 June 2011, T-Labs Berlin Germany Innovative Internet Community Systems I2, 15 ­ 17 June 2011, T-Labs Berlin Germany Pre-Conference Events Tuesday: Informal Welcome Reception Wednesday morning: Gro�er Tiergarten Jogging #12;11th I2 CS 2011, 15 ­ 17 June 2011, T-Labs Berlin Germany

Rossak, Wilhelm R.

195

Cercetarea stiintifica in robotica Cristian Dima ---mailto:cdima+@cs.cmu.edu,  

E-Print Network (OSTI)

Cercetarea ¸stiint¸ificâ??a â??in roboticâ??a Cristian Dima --- mailto:cdima+@cs.cmu.edu, Mihai Budiu --- mailto:mihaib+@cs.cmu.edu mai 2000 Subiect: Institutul de Roboticâ??a al Universitâ??at¸ii Carnegie Mellon Despre robot¸i 1 2 Institutul de Roboticâ??a al Universitâ??at¸ii Carnegie Mellon 2 3 Cercetarea â??in roboticâ??a

Budiu, Mihai

196

herzog@irit.fr, laurent.lefevre@inria.fr, pierson@irit.fr l'universit et l'industrie  

E-Print Network (OSTI)

herzog@irit.fr, laurent.lefevre@inria.fr, pierson@irit.fr GREEN IT entre l'université et l in IT innovation Green IT Innovation #12;Page 3 Green IT IT emits 600 Mtons of CO2, growing 60% in 2020 Estimated is Green IT : How to define it? Different definition, difficult to include all parameters: from electricity

Lefèvre, Laurent

197

Spatial variations of low levels of 134Cs and 137Cs in seawaters within the Sea of Japan after the Fukushima Dai-ichi Nuclear Power Plant accident  

Science Journals Connector (OSTI)

Abstract Our method based on low background ?-spectrometry enabled the measurement of low radiocesium concentrations in only 20 L of seawater. In May 2011 after deposition of radiocesium, 134Cs concentration in surface water within the Sea of Japan was confirmed to be significantly small (Japan without advection to below the thermocline.

Mutsuo Inoue; Hisaki Kofuji; Shinji Oikawa; Takuma Murakami; Masayoshi Yamamoto; Seiya Nagao; Yasunori Hamajima; Jun Misonoo

2013-01-01T23:59:59.000Z

198

RbSr ages of igneous rocks from the Apollo 14 mission and the age of the Fra Mauro formation  

Science Journals Connector (OSTI)

Internal Rb-Sr isochrons were determined on four basaltic rocks and on a basaltic clast from a breccia from the Fra Mauro landing site. Rocks 14310, 14073 and 14001,7,3 yield essentially identical ages T = 3.88 ± 0.04 AE and identical high initial 87Sr/86Sr, I = 0.70035 ± 4. Rock 14053 and the clast from breccia 14321 both yield a higher age T = 3.95 ± 0.04 AE and a distinctly lower I = 0.69945 ± 4. Model ages relative to BABI for these rocks range from 4.3 to 4.6 AE. Model ages were determined for soil samples 14141, 14149, 14163, 14259 yielding TBABI of 4.4, 4.5, 4.5 and 4.7 AE respectively. An internal isochron was determined for 12004 and yielded (3.29 ± 0.07 AE, 0.69948 ± 5) in agreement with our previous results for basaltic rocks from the Apollo 12 site. The crystallization ages for Apollo 14 basalts are only 0.2 to 0.3 AE older than were found for mare basalts from the Sea of Tranquillity. Assuming these leucocratic igneous rocks to be representative of the Fra Mauro site, it follows that there were major igneous processes active in these regions, and presumably throughout the highlands, at times only slightly preceding the periods at which the maria were last flooded. If the breccias represent the Fra Mauro formation and if this is the result of excavation of the Imbrium Basin, we must conclude that a major bombardment of the earth-moon system continued to take place at least as late as 3.9 AE or about 0.7 AE after the formation of the solar system. Such a late major bombardment could remove the need for internal heat sources to explain some mare lava flows. Some of the lunar differentiation processes could possibly represent the result of collisional melting of a thin outer layer. This late bombardment requires that planetary objects ? 100 km in size must be stored in unstable orbits with lifetimes of 108 yr or more.

D.A. Papanastassiou; G.J. Wasserburg

1971-01-01T23:59:59.000Z

199

Large negative and positive delay of optical pulses in coherently prepared dense Rb vapor with buffer gas RID B-9041-2008  

E-Print Network (OSTI)

Large negative and positive delay of optical pulses in coherently prepared dense Rb vapor with buffer gas Eugeniy E. Mikhailov,1,2,* Vladimir A. Sautenkov,1,3 Irina Novikova,1,4 and George R. Welch1 1Department of Physics and Institute.... To prolong the interaction time, an inert buffer gas is often added to the atomic vapor to slow the diffusion of the coherently prepared atoms through the laser beam [10?12]. However, it has been recently dem- onstrated that significant modification...

Mikhailov, E. E.; Sautenkov, V. A.; Novikova, I.; Welch, George R.

2004-01-01T23:59:59.000Z

200

Evaluation of Adsorption Properties for Cs and Sr Selective Adsorbents-13171  

SciTech Connect

The development of effective treatment and disposal methods is very urgent and important subject. Tohoku University and UNION SHOWA have developed various selective adsorbents (zeolites, zeolite sheets and composites loaded with insoluble ferrocyanides) for the effective decontamination of radioactive Cs{sup +} and Sr{sup 2+} As for Cs{sup +} adsorption, CST, chabazite and insoluble ferrocyanides composites had relatively large distribution coefficients (K{sub d}) above 10{sup 3} cm{sup 3}/g and excellent adsorption kinetics in seawater. Even after high temperature calcination at 1,100 deg. C, cesium was still immobilized in the calcined products of Cs{sup +}-zeolites, suggesting high immobilization ability of zeolites for Cs{sup +}. As for Sr{sup 2+} adsorption, A and X zeolites had relatively large K{sub d} values around 10{sup 2} cm{sup 3}/g, and zeolite sheet (A zeolite) exhibited excellent adsorption kinetics in seawater. Considering the decontamination of radioactive Sr{sup 2+} in groundwater, the effects of Ca{sup 2+} and Mg{sup 2+} ions on the K{sub d} value of Sr{sup 2+} were further examined by batch method. The K{sub d} value of Sr{sup 2+} was almost independent of Mg{sup 2+} concentration up to 2,500 ppm, while gradually lowered in the presence of Ca{sup 2+} above 200 ppm, due to the differences in the ionic radius of hydrated ion. The Cs{sup +} and Sr{sup 2+} adsorption ability for KNiFC-A (composite of A zeolite loaded with insoluble ferrocyanides) was examined by batch method. Here the matrix of composite (A zeolite) and loaded ferrocyanides (KNiFC) have high selectivity towards Sr{sup 2+} and Cs{sup +}, respectively. The K{sub d} values of Sr{sup 2+} and Cs{sup +} in seawater were estimated to be above 10{sup 2} and 10{sup 3} cm{sup 3}/g, respectively, indicating the effectiveness for the decontamination of both Sr{sup 2+} and Cs{sup +}. The basic data on the Cs{sup +} and Sr{sup 2+} adsorption properties for selective adsorbents are effective for the practical decontamination processes of these metal ions in seawater and groundwater. (authors)

Nakai, Tomonori; Wakabayashi, Syunya; Mimura, Hitoshi; Niibori, Yuichi; Kurosaki, Fumio; Matsukura, Minoru [Dept. of Quantum Science and Energy Engineering, Graduate School of Engineering, Tohoku University,Aramaki-Aza-Aoba 6-6-01-2,Sendai, 980-8579 (Japan)] [Dept. of Quantum Science and Energy Engineering, Graduate School of Engineering, Tohoku University,Aramaki-Aza-Aoba 6-6-01-2,Sendai, 980-8579 (Japan); Tanigawa, Hiroshi; Ishizaki, Eiji [UNION SHOWA K.K., 17-20, Mita 2-chome, Minato-ku, Tokyo 108-0073 (Japan)] [UNION SHOWA K.K., 17-20, Mita 2-chome, Minato-ku, Tokyo 108-0073 (Japan)

2013-07-01T23:59:59.000Z

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


201

File:SaltWells CS-FDM.pdf | Open Energy Information  

Open Energy Info (EERE)

SaltWells CS-FDM.pdf SaltWells CS-FDM.pdf Jump to: navigation, search File File history File usage Metadata File:SaltWells CS-FDM.pdf Size of this preview: 448 × 599 pixels. Other resolution: 449 × 600 pixels. Full resolution ‎(838 × 1,120 pixels, file size: 8.08 MB, MIME type: application/pdf) Map showing the CS-FDM survey results performed at Salt Wells by Willowstick Technologies, LLC. Dark shading highlights conductive highs and lightly shaded to white areas highlight conductive lows, which equate to zones of high or low groundwater saturation. From Montgomery et al. (2005) Figure 1. File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment current 11:08, 13 September 2013 Thumbnail for version as of 11:08, 13 September 2013 838 × 1,120 (8.08 MB) Mbennett (Talk | contribs) Map showing the CS-FDM survey results performed at Salt Wells by Willowstick Technologies, LLC. Dark shading highlights conductive highs and lightly shaded to white areas highlight conductive lows, which equate to zones of high or low groundwater satur...

202

Universality of weakly bound dimers and Efimov trimers close to Li-Cs Feshbach resonances  

E-Print Network (OSTI)

We study the interspecies scattering properties of ultracold Li-Cs mixtures in their two energetically lowest spin channels in the magnetic field range between 800 G and 1000 G. Close to two broad Feshbach resonances we create weakly bound LiCs dimers by radio-frequency association and measure the dependence of the binding energy on the external magnetic field strength. Based on the binding energies and complementary atom loss spectroscopy of three other Li-Cs s-wave Feshbach resonances we construct precise molecular singlet and triplet electronic ground state potentials using a coupled-channels calculation. We extract the Li-Cs interspecies scattering length as a function of the external field and obtain almost a ten-fold improvement in the precision of the values for the pole positions and widths of the s-wave Li-Cs Feshbach resonances as compared to our previous work [Pires \\textit{et al.}, Phys. Rev. Lett. \\textbf{112}, 250404 (2014)]. We discuss implications on the Efimov scenario and the universal geome...

Ulmanis, J; Pires, R; Kuhnle, E D; Weidemüller, M; Tiemann, E

2015-01-01T23:59:59.000Z

203

Bioaccumulation factor of {sup 137}Cs in some marine biotas from West Bangka Indonesia  

SciTech Connect

Radionuclides may be released from nuclear facilities to the marine environment. Concentrations of radionuclides within marine biotic systems can be influenced by a number of factors, including the type of biota, its source, the radionuclide, and specific characteristics of the sampled specimens and the marine environment (salinity, etc.). The bioconcentration factor for a marine organism is the ratio of the concentration of a radionuclide in that organism to the concentration found in its marine water environment - under conditions of equilibrium. Information on the bioaccumulation of Cs-137 in marine organisms is required to risk assessment evaluates the potential risks to human health. Bioaccumulation of Cs was investigated in marine biota from west Bangka such as Marine cat fish (Arius thalassinus), Baramundi (Lates calcarifer), Mackerel (Scomberomorus commerson), Striped eel catfish (Plotosus lineatus), eel tailed fish (Euristhmus microceps), Yellowtail fusilier (Caesio erythrogaster), Coastal crab (Scylla sp), White shrimp (Penaeus merguiensis) and marine bivalve mollusk (Anadara granosa). Muscle of these marine biota, sediments and water were assayed for Cs-137 by HPGe gamma spectrometer. The bioaccumulation factor for fishes were calculated by ratio of concentration Cs-137 in muscle biota to the its concentration in water. The bioaccumulation factor for mollusks were calculates by ratio of concentration Cs-137 in muscle biota to the its concentration in sediments. The bioaccumulation factor were range 4.99 to 136.34.

Suseno, Heny, E-mail: henis@batan.go.id [Radioactive Waste Technology Center - The Indonesia Nuclear Energy Agency (BATAN) (Indonesia)

2014-03-24T23:59:59.000Z

204

A Search for a Light Charged Higgs Boson Decaying to cs at ?s = 7 TeV.  

E-Print Network (OSTI)

??A search for a light charged Higgs boson decaying into cs is presented using data recorded in pp collisions at ?s = 7 TeV. The… (more)

Martyniuk, Alex Christopher

2011-01-01T23:59:59.000Z

205

Growth and crystal structure of binary molybdate CsFe(MoO{sub 4}){sub 2}  

SciTech Connect

CsFe(MoO{sub 4}){sub 2} single crystals have been grown by solution-melt crystallization with a charge-to-solvent ratio of 1: 3 (with Cs{sub 2}Mo{sub 3}O{sub 10} used as a solvent). The crystal structure of this compound has been refined by X-ray diffraction (X8 APEX automatic diffractometer, MoK{sub {alpha}} radiation, 356 F(hkl), R = 0.0178). The trigonal unit cell has the following parameters: a = b = 5.6051(2) A, c = 8.0118(4) A, V = 217.985(15) A{sup 3}, Z = 1, {rho}{sub calc} = 3.875 g/cm{sup 3}, and sp. gr. P3-barm1. The structure is composed of alternating layers of FeO{sub 6} octahedra (with MoO{sub 4} tetrahedra attached by sharing vertices) and CsO{sub 12} icosahedra.

Bazarov, B. G., E-mail: jbaz@binm.bscnet.ru; Namsaraeva, T. V. [Russian Academy of Sciences, Baikal Institute of Nature Management, Siberian Branch (Russian Federation); Klevtsova, R. F., E-mail: klev@che.nsk.su; Anshits, A. G. [Russian Academy of Sciences, Institute of Inorganic Chemistry, Siberian Branch (Russian Federation); Vereshchagina, T. A. [Russian Academy of Sciences, Institute of Chemistry and Chemical Technology, Siberian Branch (Russian Federation); Glinskaya, L. A. [Russian Academy of Sciences, Institute of Inorganic Chemistry, Siberian Branch (Russian Federation); Fedorov, K. N.; Bazarova, Zh. G. [Russian Academy of Sciences, Baikal Institute of Nature Management, Siberian Branch (Russian Federation)

2010-07-15T23:59:59.000Z

206

Estimation of radiation doses from 137Cs to frogs in a wetland ecosystem  

Science Journals Connector (OSTI)

Currently, there is no established methodology to estimate radiation doses to non-human biota. Therefore, in this study, various dose models were used to estimate radiation doses to moor frogs (Rana arvalis) in a wetland ecosystem contaminated with 137Cs. External dose estimations were based on activity concentrations of 137Cs in soil and water, considering changes in habitat over a life-cycle. Internal doses were calculated from the activity concentrations of 137Cs measured in moor frogs. Depending on the dose model used, the results varied substantially. External dose rates ranged from 21 to 160 mGy/y, and internal dose rates varied between 1 and 14 mGy/y. Maximum total dose rates to frogs were below the expected safe level for terrestrial populations, but close to the suggested critical dose rate for amphibians. The results show that realistic assumptions in dose models are particularly important at high levels of contamination.

K. Stark; R. Avila; P. Wallberg

2004-01-01T23:59:59.000Z

207

New analysis of the two carbon-rich stars CS 22948-27 and CS 29497-34 : binarity and neutron-capture elements  

E-Print Network (OSTI)

We have carried out a new determination of abundances in the very metal-poor CH/CN strong stars CS 29497-34 and CS 22948-27, using high-resolution spectra obtained with the HARPS spectrograph at the 3.6m telescope of ESO, La Silla, that covers the range 400 - 690 nm at a resolution of R = 100,000. Both stars are found to be long period binaries. It is confirmed that the abundance patterns show an enhancement of all the alpha-elements (like Mg, Ca), of the proton capture elements (like Na and Al) and a strong enrichment in "r" and "s" process elements, where the s-enrichment is probably due to a mass transfer episode from a companion in its AGB phase. The possible origins of the abundance pattern and especially of the strong enhancement of both "s" and "r" elements are discussed.

B. Barbuy; M. Spite; F. Spite; V. Hill; R. Cayrel; B. Plez; P. Petitjean

2004-09-09T23:59:59.000Z

208

Varietal differences in growth and Cs allocation of blackgram (Vigna mungo) under water stress  

Science Journals Connector (OSTI)

Abstract Plant uptake and distribution of radioactive caesium (137Cs) was examined in an effort to determine how plant-water interactions differ between two blackgram plant varieties with different salt tolerance. Salt-tolerant U Taung-2 (BT) and the salt-sensitive variety Mutpe Khaing To (BS) were grown in pots filled with 137Cs-contaminated soil obtained from Nihonmatsu, Fukushima, Japan. The average soil 137Cs concentration was 1084 Bq kg?1, and the soil type comprised sandy clay loam, where the sand: silt: clay proportion was 62:18:20. After growing for 15 days in a temperature-controlled growth chamber, plants were subjected to drought stress conditions by addition of either 10 or 20% polyethylene glycol (PEG 6000) to the soil to reduce the osmotic potential of the soil, or to field capacity conditions (0% PEG). Analysis of the growth traits and water relations revealed the different strategies employed by the two blackgram varieties under water stress conditions. No differences were observed among the two varieties under field capacity conditions. However, under both drought stress conditions (10 or 20% PEG), the reduction in total leaf area, total biomass and plant growth analysis parameters, in addition to the relative water content, were higher in BS than in BT plants. Both plant varieties exhibited lower 137Cs concentrations in the leaves, shoots and roots under drought stress conditions compared to plants subjected to field capacity conditions. Under drought stress conditions, BT plants showed uptake and translocation of 137Cs from the roots to shoots and leaves, while this activity was seriously limited in BS plants, and especially in the leaf portion of BS plants treated with 20% PEG. In BT plants, potassium moved more freely than Cs from roots to the aerial parts of the plant under water stress conditions, while this was not the case in BS plants. Examination of the hydraulic conductivity showed a positive correlation with the 137Cs concentration in leaf and stem. Our results showed that the accumulation and distribution patterns of 137Cs among part of the blackgram tissues were dependent on plant growth performance, water movement pathways, and selective absorption.

Khin Thuzar Win; Aung Zaw Oo; Han Phyo Aung; Akimi Terasaki; Tadashi Yokoyama; Sonoko Dorothea Bellingrath-Kimura

2015-01-01T23:59:59.000Z

209

Off-center Tl and Na dopant centers in CsI  

SciTech Connect

We use density functional theory calculations to characterize the electronic and structural properties of the Tl and Na dopant centers in CsI. We nd that the Tl and Na centers can accept one or two electrons and couple to long-range relaxations in the surrounding crystal lattice to distort strongly off-center to multiple distinct minima, even without a triplet excitation. The long-range distortions are a mechanism to couple to phonon modes in the crystal, and are expected to play an important role in the phonon-assisted transport of polarons in activated CsI and subsequent light emission in this scintillator.

Van Ginhoven, Renee M.; Schultz, P. A.

2013-12-11T23:59:59.000Z

210

Extra sub-Doppler lines in the vicinity of the third-resonance 6S-8P transition of atomic Cs attributed to optically induced Cs dimers  

SciTech Connect

We report on the observation of additional sub-Doppler lines in a saturated absorption experiment when exploring the vicinity of the 6S{sub 1/2}-8P{sub 3/2} transition of Cs ({lambda}=388 nm). These additional lines are observed only under a relatively strong irradiation of both the pump and the probe beams. Extra narrow lines are also observed in copropagating nonlinear spectroscopy, and around the lines of the V-type three-level system 8P{sub 3/2}-6S{sub 1/2}-8P{sub 1/2} ({lambda}{sub 1}=388 nm, {lambda}{sub 2}=389 nm). We attribute theses additional lines to a probing of high-lying molecular cesium, produced as a result of the optical excitation of Cs atoms, as the low Cs atom density ({<=}10{sup 12}cm{sup -3}) is unable to populate significantly the dimer states in the condition of thermal equilibrium.

Passerat de Silans, Thierry; Maurin, Isabelle; Laliotis, Athanasios; Segundo, Pedro Chaves de Souza; Bloch, Daniel [Laboratoire de Physique des Lasers, Institut Galilee, Universite Paris 13, Villetaneuse, UMR 7538 du CNRS, 99 AvenueJ.B. Clement, F-93430 Villetaneuse (France)

2011-04-15T23:59:59.000Z

211

FATE AND TRANSPORT OF RADIONUCLIDES [U(VI), Sr, Cs] IN VADOSE ZONE SEDIMENTS AT THE HANFORD SITE  

E-Print Network (OSTI)

FATE AND TRANSPORT OF RADIONUCLIDES [U(VI), Sr, Cs] IN VADOSE ZONE SEDIMENTS AT THE HANFORD SITE AND TRANSPORT OF RADIONUCLIDES [U(VI), Sr, Cs] IN VADOSE ZONE SEDIMENTS AT THE HANFORD SITE Abstract by Kenton A that influence radionuclide fate and transport in the Hanford vadose zone. Hanford was established for nuclear

Flury, Markus

212

Penetration of 90Sr and 137Cs in deep layers of the Pacific and vertical diffusion rate of deep water  

Science Journals Connector (OSTI)

......June 1962 research-article Article Penetration of 90Sr and 137Cs in deep layers of the Pacific and vertical diffusion rate of deep water Yasuo Miyake * Katsuko...Mabashi, Suginami, Tokyo Vertical penetration of Sr-90 and Cs-137 down to 5......

Yasuo Miyake; Katsuko Saruhashi; Yukio Katsuragi; Teruko Kanazawa

1962-06-01T23:59:59.000Z

213

PUBLICATIONS (REFEREED) Howat, C.S. III, and Swift, G.W., 1980. A New Correlation of  

E-Print Network (OSTI)

. Srinivasan, S., and Howat, C.S., 1999. Optimization of Propylene Purification System. Paper 8d, AIChE Annual.M., Mark, L.M. (presenter), and Howat, C.S., 1989. Purification of Butadiene Using Thermally Coupled Estimation for the Removal of Acetone and Benzene from Waste Water. Paper 170i, AIChE Annual Meeting, San

Howat, Colin S. "Chip"

214

Safe Exploration in Markov Decision Processes Teodor Mihai Moldovan moldovan@cs.berkeley.edu  

E-Print Network (OSTI)

Safe Exploration in Markov Decision Processes Teodor Mihai Moldovan moldovan@cs.berkeley.edu Pieter for safe exploration methods in Markov decision processes. We first pro- pose a general formulation reinforcement learning algorithms provide strong exploration guar- antees, but they tend to rely on an ergod

Abbeel, Pieter

215

CERAMIC BREEDER BLANKET FOR ARIES-CS A.R. Raffray1  

E-Print Network (OSTI)

to a Rankine steam cycle (e.g. the EU He-cooled pebble bed blanket3 ). However, safety concerns have been in the first phase of the ARIES-CS study. The blanket is coupled to a Brayton power cycle to avoid the safety a Brayton cycle to such a blanket, by optimizing the cycle as well as by maximizing the coolant temperature

California at San Diego, University of

216

Introduction to Ad hoc Networks CS-647: Advanced Topics in Wireless Networks  

E-Print Network (OSTI)

1-1 Introduction to Ad hoc Networks CS-647: Advanced Topics in Wireless Networks Drs. Baruch Awerbuch 2008 #12;1-2 Outline What is an ad hoc network? Challenges facing ad hoc networks History of Ad C. K. Toh, Chapter 3, "Ad Hoc Wireless Networks", Prentice Hall, 2002 D. P. Agrawal and Qing

Amir, Yair

217

Computer Science Colloquia 2010-11 http://www.cs.iastate.edu/~colloq/new/  

E-Print Network (OSTI)

Computer Science Colloquia 2010-11 http://www.cs.iastate.edu/~colloq/new/ ALL SCIENCE IS COMPUTER computation. In particular, we have found that building these hierarchies in image space dramatically reduces is an Associate Professor in the Department of Computer Science at the University of Iowa. His specialty

Mayfield, John

218

Computer Science Colloquia 2010-11 http://www.cs.iastate.edu/~colloq/new/  

E-Print Network (OSTI)

Computer Science Colloquia 2010-11 http://www.cs.iastate.edu/~colloq/new/ ALL SCIENCE IS COMPUTER SCIENCE Dr. Jack Lutz Molecular Programming and Self-Assembly: How Computer Scientists Will Lead are computer scientists, and this will be even more true in the future. This is because the methods

Mayfield, John

219

September 23, 2004/ARR ARIES-CS Power Core: Initial Scoping  

E-Print Network (OSTI)

September 23, 2004/ARR 1 ARIES-CS Power Core: Initial Scoping Study and Assessment A. René Raffray University of California, San Diego OFES, DoE September 23, 2004 #12;September 23, 2004/ARR 2 Outline Phase I Engineering Effort · Maintenance and Assembly · Power Core Concepts · Engineering and Physics Integration Very

Raffray, A. René

220

CSCI 227 Page 1 Fall 2014 CSCI 227 Introduction to Cybersecurity for Non-CS majors  

E-Print Network (OSTI)

CSCI 227 Page 1 Fall 2014 Syllabus CSCI 227 ­ Introduction to Cybersecurity for Non-CS majors Fall.0 Course Description This course will provide an introduction to concepts related to Cybersecurity of Cybersecurity; introduce concepts of Internet security; present properties of malicious software; study tools

Banik, Shankar M.

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221

CS 115: Programming I Spring 2014 Instructors Dr. Suzanne Rivoire, Dr. Tia Watts, Noah Melcon  

E-Print Network (OSTI)

CS 115: Programming I ­ Spring 2014 Instructors Dr. Suzanne Rivoire, Dr. Tia Watts, Noah Melcon Meeting times Lecture: TTh 9:20­10:35 Darwin 102 Rivoire Lab (Sections 1/2): T 5:00­7:50 Darwin 25 Watts

Ravikumar, B.

222

CS233917-AF National Center for Chronic Disease Prevention and Health Promotion  

E-Print Network (OSTI)

CS233917-AF National Center for Chronic Disease Prevention and Health Promotion Division, Physical Activity, and Obesity Profile Obesity has important consequences on our nation's health by unhealthy options when it comes to diet and physical activity.We need public health approaches that make

223

Technical Report CS96481, CSE Dept., UCSD, April 1996 Determining Asynchronous Pipeline Execution Times  

E-Print Network (OSTI)

Technical Report CS96­481, CSE Dept., UCSD, April 1996 Determining Asynchronous Pipeline Execution pipelining is a form of parallelism in which processors execute different loop tasks (loop statements) as opposed to different loop iterations. An asynchronous pipeline schedule for a loop is an assignment

Ferrante, Jeanne

224

Conference Rankings I promised to send you a website for CS conference rankings. It is at  

E-Print Network (OSTI)

Conference Rankings I promised to send you a website for CS conference rankings. It is at http://www.csconferenceranking.org/conferencerankings/alltopics.html It is not the only such ranking, but it seems to agree with what I have found in attending conferences to rank conference are anonymous only revealed after their death. The reason is that people have been

Allan, Vicki H.

225

Testing and Verification of Digital Circuits ECE/CS 5745/6745  

E-Print Network (OSTI)

1 Testing and Verification of Digital Circuits ECE/CS 5745/6745 Syllabus Instructor: Priyank Kalla@ece.utah.edu 1. Introduction Introduction to VLSI Testing and Design Verification Sets, Relations and Testing Types Logical Modeling of Physical Faults Fault Detection using Boolean Difference

Kalla, Priyank

226

BOOT CAMP: A FIRST YEAR SEMINAR IN CS1 LABS Alice Armstrong  

E-Print Network (OSTI)

BOOT CAMP: A FIRST YEAR SEMINAR IN CS1 LABS Alice Armstrong Computer Science Department for college success. This "boot camp" also lays out the degree concentrations available in the Computer hours a week: two hours identical to the non-major sections and an additional hour nicknamed "boot camp

Armstrong, Alice

227

June 14-15, 2006/ARR ARIES-CS Power Core Engineering  

E-Print Network (OSTI)

) 10.0 Avg. heat flux on divertor including alpha loss component (MW/m2) 0.985 THERMAL POWER IN BLANKETJune 14-15, 2006/ARR 1 ARIES-CS Power Core Engineering: Updating Power Flow, Blanket and Divertor,sol Comprehensive Power Flow Diagram Including Possibility of Added Power and Alpha Loss Flux Going to Both FW

Raffray, A. René

228

Introduction to Text Mining and Web gaocong@cs.aau.dk  

E-Print Network (OSTI)

standard data-mining #12;Definitions of Text Mining · Text mining mainly is about somehow extractingIntroduction to Text Mining and Web Search Gao Cong gaocong@cs.aau.dk Some slides are borrowed from;Objectives · To have a rough idea of text mining and web search ­ Not about deep techniques · Connections

Kaiserslautern, Universität

229

The Tokamak Physi'cs Experiment* Ronald C. Davidson+ and Robert J. Goldston  

E-Print Network (OSTI)

The Tokamak Physi'cs Experiment* Ronald C. Davidson+ and Robert J. Goldston Princeton Plasma) [Nevins et al., Plasma Physics and Controlled Nucle& F&on, Wiirzburg (InternationalAtomic Energy' rather than "advanced" physics regimes.The elementsof these advancedregimes, and the machine

230

debussy@cs.yonsei.ac.kr, iklee@yonsei.ac.kr Affective Icons for Music Exploring  

E-Print Network (OSTI)

O debussy@cs.yonsei.ac.kr, iklee@yonsei.ac.kr Affective Icons for Music Exploring Min and colors of harmonograph curves. These curves can be used as icons for music retrieval, and we demonstrate. This approach is compatible with a standard icon-based file browser. . Introduction Since the appearance

Lee, In-Kwon

231

Childrens School 2012-2013 Carnegie Mellon University FAMILY HANDBOOK www.psy.cmu.edu/cs  

E-Print Network (OSTI)

Childrens School 2012-2013 Carnegie Mellon University FAMILY HANDBOOK www.psy.cmu.edu/cs 1 Dear and assessing childrens progress in all aspects of the social, cognitive, and physical foundations necessary of this Family Handbook is to provide an organized source of detailed information specifically related

232

Children's School 2013-2014 Carnegie Mellon University FAMILY HANDBOOK www.psy.cmu.edu/cs  

E-Print Network (OSTI)

Children's School 2013-2014 Carnegie Mellon University FAMILY HANDBOOK www.psy.cmu.edu/cs 1 Dear and assessing children's progress in all aspects of the social, cognitive, and physical foundations necessary of this Family Handbook is to provide an organized source of detailed information specifically related

233

Algebra and Geometry of Rough Logic Controllers T. Y. Lin 1 tylin@cs.susu.edu  

E-Print Network (OSTI)

for intelligent controls, is a mathematical formalism that integrates fuzzy logic, rough sets , evolutionary: control, fuzzy logic, evolutionary computing, modal logic, rough logic, rough set. 1 IntroductionAlgebra and Geometry of Rough Logic Controllers T. Y. Lin 1 tylin@cs.susu.edu Martin Wildberger 2

Lin, Tsau Young

234

(OSCAR API ver. 2.0) http://www.kasahara.cs.waseda.ac.jp/  

E-Print Network (OSTI)

(OSCAR API ver. 2.0) http://www.kasahara.cs.waseda.ac.jp/ kasahara@waseda.jp Tel. 03 APIOSCAR OSCAR OSCAR OSCAR Many-core Chip , , #12;OSCAR API v2.0 · NEDO20081114OSCAR API ver.1.0 22CFortran2 CFortran DMAC OSCAR API ver.2.0OSCAR APIOSCAR API2012425http

Kasahara, Hironori

235

Internal conversion coefficients in (134)Cs, (137)Ba, and (139)La: A precise test of theory  

E-Print Network (OSTI)

Recently we measured the ratio of K-shell internal conversion coefficients, alpha(K), for the 127.5-keV E3 transition in (134)Cs and the 661.7-keV M4 transition in (137)Ba. We here report a measurement of the 165.9-keV M1 transition in (139)La...

Nica, N.; Hardy, John C.; Iacob, V. E.; Balonek, C.; Trzhaskovskaya, M. B.

2008-01-01T23:59:59.000Z

236

CS1428 : Honors Assignment 0: Algorithms in Real Life and Hello World  

E-Print Network (OSTI)

CS1428 : Honors Assignment 0: Algorithms in Real Life and Hello World 100 Points Due: Friday, Sep 6. The write-up does not need to be elaborate (1 page is sufficient). 2 Hello World Description For part two of this assginment you will write the hello world program in C++. This program has traditionally been the first

Qasem, Apan - Department of Computer Science, Texas State University

237

Tests of Cs-137 removal from DWPF samples prior to analysis  

SciTech Connect

The Defense Waste Processing Facility (DWPF) will be used to encapsulate high-level radioactive waste into borosilicate glass at the Savannah River Site. To ensure that the process streams will be blended in the right proportions to produce durable glass, process control analyses will be performed in a laboratory in the DWPF. The high radioactivity of DWPF samples will require that sample preparation, including dissolution and dilution of samples, be performed in shielded cells. However the final analyses will be made with instruments and spectrometers contained in unshielded fume hoods. The primary radiation concern is the exposure to y-rays from the decay of Cs-137 after samples are removed from the shielded cells. Since there are several methods available for removing Cs-137 from samples, investigations were made into removing Cs-137 from DWPF samples prior to analysis in order to reduce worker exposure. Results are presented of the efficiency of various Cs-137 removal techniques and the effects of these techniques on analytical precision and accuracy.

Dewberry, R.A.; Coleman, C.J.

1994-11-10T23:59:59.000Z

238

Fractals with turtle graphics: a CS2 programming exercise for introducing recursion  

Science Journals Connector (OSTI)

This paper describes a programming exercise developed and used in CS2 classes to help introduce recursive programming. Providing a set of primitives which comprise a graphics system allows the students to focus on top down design and the nature of recursion, ...

Ivan B. Liss; Thomas C. McMillan

1987-02-01T23:59:59.000Z

239

Here, There and Everywhere On the Recurring Use of Turtle Graphics in CS1  

E-Print Network (OSTI)

Here, There and Everywhere ­ On the Recurring Use of Turtle Graphics in CS1 Michael E. Caspersen implements a virtual drawing machine--the turtle machine. The turtle ma- chine is well-known for giving present our experiences with resurrecting the Logo turtle in a new object-oriented way and using

Christensen, Henrik Bærbak

240

Secure Systems Editor: S.W. Smith, sws@cs.dartmouth.edu  

E-Print Network (OSTI)

Secure Systems Editor: S.W. Smith, sws@cs.dartmouth.edu side of the picture--the computers which we train students, young and old, to be effective cyber-citizens; and the media coverage or produce more effective tailors. S.W. SMITH Dartmouth College T oalargeextent,computingsystemsareu

Smith, Sean W.

Note: This page contains sample records for the topic "rb cs fr" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Hierarchy of formal descriptions for architectural analysis and design of complex CS  

Science Journals Connector (OSTI)

Traditionally, in the CS design process, it is considered more important to formalize the functionality of the system, while the system's environment plays a secondary role. From our point of view, a formalized representation of the system functionality ... Keywords: architectural analysis support, concept development, hierarchical formalization, simulation modeling approach

A. Kurkovsky

2007-09-01T23:59:59.000Z

242

? + Residual polarization in water, CS2, C6F6 and hydrocarbons under strong decoupling fields  

Science Journals Connector (OSTI)

The? + decay asymmetry was measured as a function of longitudinal magnetic field (LF) between zero and 10 kG in spin decoupling experiments on muons in water, c-hexane, CS2, C6F6, C6H6 etc. The re...

Y. Miyake; Y. Tabata; Y. Ito; K. Ishida; T. Matsuzaki…

1984-01-01T23:59:59.000Z

243

An X-Ray Fluorescence Study on the Segregation of Cs and I in and Inverted Organic Solar Cell  

SciTech Connect

X-ray near-total-reflection fluorescence reveals that in multilayers of the inverted organic solar cell (ITO/CsI/P3HT:PCBM-based) Cs diffuses into the organic layer and iodide diffuses into the ITO. Laser ablation inductively coupled plasma mass spectrometry measurements, which integrate elemental concentration across the whole multilayer structure, indicate that the Cs:I ratio remains 1:1 confirming there is no loss of iodine from the sample. Iodide diffusion to the bulk ITO layer is also found in a similarly prepared ITO/NaI/P3HT:PCBM multilayer structure. Our results are consistent with recent XPS measurements which show that the Cs:I ratio at the ITO/CsI surface exceeds 8:1, and rationalize this observation.

Lindemann, William R. [Ames Laboratory; Xiao, Teng [Ames Laboratory; Wang, Wenjie [Ames Laboratory; Berry, Jonna E. [Ames Laboratory; Anderson, Nathaniel A. [Ames Laboratory; Houk, Robert S. [Ames Laboratory; Shinar, Ruth [Ames Laboratory; Shinar, Joseph [Ames Laboratory; Vaknin, David [Ames Laboratory

2013-10-08T23:59:59.000Z

244

n Ja FISCH AND Cs Fr Ft KARNEV This work gas supparzed by the U, S, Departmecr of Snergp  

E-Print Network (OSTI)

, This difficulty can be circumvented, in theory, by generating the toroidal plasma current with radio-frequency (rf attractive regime of high-frequency waves. Con- clusions are based, in part, on the numerical solu- tion://charles.karney.info/biblio/fisch81.html #12;Current Generation with Low-Frequency Waves Nathaniel J. Fisch and Charles F. F. Karney

Karney, Charles

245

Half-metallic ferromagnetism in full-Heusler compounds ACaX{sub 2} (A = K and Rb; X = N and O)  

SciTech Connect

Electronic structure and magnetic properties of hypothetical ACaX{sub 2} (A = K and Rb; X= N and O) compounds in full-Heusler phase have been investigated based on density functional theory (DFT) within the local density approximation (LDA). The electronic band structures and density of states of these compounds show that the spin-down electrons have metallic, and the spin-up electrons have a semi conducting gap resulting in stable half-metallic ferromagnetic behaviour. The strong spin polarization of 2p states of N and O atoms is found to be the origin of ferromagnetism which results in a total magnetic moment of 3{sub ?B} and 1{sub ?B} respectively.

Umamaheswari, R., E-mail: g-kalpa@yahoo.com; Vijayalakshmi, D., E-mail: g-kalpa@yahoo.com; Yogeswari, M., E-mail: g-kalpa@yahoo.com; Kalpana, G., E-mail: g-kalpa@yahoo.com [Department of Physics, Anna University - Chennai, Sardar Patel Road, Guindy, Chennai - 600025 (India)

2014-04-24T23:59:59.000Z

246

The energy band structure of A{sub x}Fe{sub 2}Se{sub 2} (A = K, Rb) superconductors  

SciTech Connect

We study the band structure of antiferromagnetic A{sub x}Fe{sub 2}Se{sub 2} (A = K, Rb) superconductors by using first-principles electronic structure calculations which is density functional theory. In the vicinity of iron-vacancy, we identify the valence electrons of A{sub x}Fe{sub 2}Se{sub 2} will be filled up to the Fermi level and no semiconducting gap is observed. Hence, the A{sub x}Fe{sub 2}Se{sub 2} is a metallic instead of semiconducting which leads to superconductivity in the orbital-selective Mott phase. Similarly, there is non-vanishing density of states at the Fermi level.

Zabidi, Noriza A. [Physics Department, Centre for Defence Foundation Studies, Universiti Pertahanan Nasional Malaysia, Kuala Lumpur 59200 (Malaysia); Azhan, Muhd. Z. [Defence Science Department, Faculty of Defence Science and Technology, Universiti Pertahanan Nasional Malaysia, Kuala Lumpur 59200 (Malaysia); Rosli, A. N. [Faculty of Science and Technology, Universiti Sains Islam Malaysia, Nilai 71800, Negeri Sembilan (Malaysia); Shrivastava, Keshav N. [School of Physics, University of Hyderabad, Hyderabad 500046 (India)

2014-03-05T23:59:59.000Z

247

Rb-Sr, Sm-Nd and Lu-Hf isotope systematics of the lunar Mg-suite: the age of the lunar crust and its relation to the time of Moon formation  

Science Journals Connector (OSTI)

...4 b.y.-old clast in Boulder 7, Apollo 17: a comprehensive...from the Apollo 17 Station 7 boulder and implications for its formation...Rb-Sr systematics of Apollo 17 boulder 7 from the North Massif of...high-Mg alkalic magmas and flood basalts. Geochem. Geophys...

2014-01-01T23:59:59.000Z

248

Ion-pairing in aqueous CaCl2 and RbBr solutions: simultaneous structural refinement of XAFS and XRD data  

SciTech Connect

We present a new methodology involving the simultaneous refinement of both x-ray absorption and x-ray diffraction spectra (X-ray Absorption/Diffraction Structural Refinement,XADSR), to study hydration and ion pair structure of CaCl2 and RbBr salts in concentrated aqueous solutions. The XADSR analysis includes the XAFS spectra analysis of both the cation and anion as a probe of their short-range structure with an XRD spectral analysis as a probe of the global structural. Together they deliver a comprehensive picture of the cation and anion hydration, the contact ion pair (CIP) structure and the solvent-separated ion pair (SSIP) structure. XADSR analysis of 6.0 m aqueous CaCl2 reveals that there are an insignificant number of Ca2+-Cl- CIP’s, but there are approximately 3.4 SSIP’s separated by about 4.99 Ĺ. In contrast XADSR analysis of aqueous RbBr yields about 0.7 pair CIP at a bond length 3.51 Ĺ. The present work demonstrates a new approach for a direct co-refinement of XRD and XAFS spectra in a simple and reliable fashion, opening new opportunities for analysis in various disordered and crystalline systems. This work was supported by the U.S. Department of Energy (DOE), Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences and Biosciences. Pacific Northwest National Laboratory (PNNL) is operated for the U.S. Department of Energy by Battelle.

Pham, Thai V.; Fulton, John L.

2013-01-28T23:59:59.000Z

249

Enviromental influences on the {sup 137}Cs kinetics of the yellow-bellied turtle (Trachemys Scripta)  

SciTech Connect

Assessments of ecological risk require accurate predictions of contaminant dynamics in natural populations. However, simple deterministic models that assume constant uptake rates and elimination fractions may compromise both their ecological realism and their general application to animals with variable metabolism or diets. In particular, the temperature-dependent model of metabolic rates characteristic of ectotherms may lead to significant differences between observed and predicted contaminant kinetics. We examined the influence of a seasonally variable thermal environment on predicting the uptake and annual cycling of contaminants by ectotherms, using a temperature-dependent model of {sup 137}Cs kinetics in free-living yellow-bellied turtles, Trachemys scripta. We compared predictions from this model with those of deterministics negative exponential and flexibly shaped Richards sigmoidal models. Concentrations of {sup 137}Cs in a population if this species in Pond B, a radionuclide-contaminated nuclear reactor cooling reservoir, and {sup 137}Cs uptake by the uncontaminated turtles held captive in Pond B for 4 yr confirmed both the pattern of uptake and the equilibrium concentrations predicted by the temperature-dependent model. Almost 90% of the variance on the predicted time-integrated {sup 137}Cs concentration was explainable by linear relationships with model paramaters. The model was also relatively insensitive to uncertainties in the estimates of ambient temperature, suggesting that adequate estimates of temperature-dependent ingestion and elimination may require relatively few measurements of ambient conditions at sites of interest. Analyses of Richards sigmoidal models of {sup 137}Cs uptake indicated significant differences from a negative exponential trajectory in the 1st yr after the turtles` release into Pond B. 76 refs., 7 figs., 5 tabs.

Peters, E.L. [Colorado State Univ., Fort Collins, CO (United States); Brisbin, L.I. Jr. [Savannah River Ecology Laboratory, Aiken, SC (United States)

1996-02-01T23:59:59.000Z

250

Alternating parity bands in 87218Fr  

Science Journals Connector (OSTI)

States in doubly odd 218Fr have been studied using in-beam spectroscopy ?-?-? coincidence techniques mainly through the 209Bi(18O, 2?n) reaction at 94 MeV bombarding energy, using the 8? GASP-ISIS spectrometer at Legnaro. 218Fr shows a band structure, with interleaved states of alternating parities connected by enhanced E1 transitions. Tentative spin assignment and the relation between the structure of 218Fr and its isotone 220Ac is discussed.

M. E. Debray; M. A. Cardona; D. Hojman; A. J. Kreiner; M. Davidson; J. Davidson; H. Somacal; G. Levinton; D. R. Napoli; S. Lenzi; G. de Angelis; M. De Poli; A. Gadea; D. Bazzacco; C. Rossi-Alvarez; N. Medina

2000-07-10T23:59:59.000Z

251

Role of Cs on Hydrodesulfurization Activity of RuS2 Catalysts Supported on a Mesoporous SBA-15 Type Material  

Science Journals Connector (OSTI)

Role of Cs on Hydrodesulfurization Activity of RuS2 Catalysts Supported on a Mesoporous SBA-15 Type Material ... Ruthenium(III) chloride, RuCl3·nH2O (? 41 wt % Ru, from Fluka); cesium hydroxide, CsOH (50 wt % solution, from Aldrich); and cesium chloride, CsCl (99.9% from Aldrich) were employed as ruthenium and cesium precursor salts, respectively. ... These liquid samples were kept in sealed vials and subsequently analyzed by gas chromatography (Shimadzu GC-14B, equipped with a flame ionization detector and a capillary column, TBR-14, coupled to an automatic Shimadzu AOC-20i injector). ...

A. Infantes-Molina; A. Romero-Pe?rez; V. Sa?nchez-Gonza?lez; B. Pawelec; J. L.G. Fierro; A. Jime?nez-Lo?pez; E. Rodri?guez-Castello?n

2011-02-03T23:59:59.000Z

252

Alpha decay of Fr215  

Science Journals Connector (OSTI)

The ?-decay property of Fr215 has been studied by the pulsed-beam method, in which Fr215 was produced in the Bi209(C12,?2n) reaction and its ? decay was measured between natural beam bursts of the cyclotron. The ground state of Fr215 was found to decay with E?=9.355±0.010 MeV and t12=0.12±0.02 ?sec. The reduced ? width of Fr215 is shown to fit the systematical trend of N=128 isotones very well and to agree with the simple shell-model calculation. Distributions of recoil angles for reaction products in the (C12,?xn) reaction were found to be quite different from those for (C12,xn) products, giving a convenient method of distinguishing these reaction products.[NUCLEAR REACTIONS Bi209(C12,xn), Bi209(C12,?xn), E=73-80 MeV; measured ? decay and W(?) of reaction products, E?, t12; deduced ?-decay width of Fr215.

T. Nomura; K. Hiruta; M. Yoshie; O. Hashimoto

1974-03-01T23:59:59.000Z

253

Adsorption properties of Cs{sup +} for composite adsorbents and their irradiation stabilities  

SciTech Connect

Novel composite adsorbents using impregnation-precipitation methods have been developed; these fine crystals are loaded in the macro-pores of porous silica gels and zeolites. The 2 following composite adsorbents: KCoFC-NM (NM: natural mordenite, 0.4-1.0 mm), KCoFC-SG (SG: porous silica gel, NH and Q-10)) were prepared by impregnation-precipitation methods. This article presents the results of tests about their characterization, their selective adsorption ability of Cs{sup 137} and their irradiation stability. It is shown that the KCoFC-SG and KCoFC-NM composites are thus efficient for the selective separation of Cs{sup 137} in low-level radioactive waste (LLW) containing highly concentrated sodium nitrate.

Susa, Shunsuke; Mimura, Hitoshi [Tohoku University, Aramaki-Aza-Aoba 6-6, Aoba-ku, Sendai, Miyagi 980-8579 (Japan); Ito, Yoshiyuki; Saito, Yasuo [Japan Atomic Energy Agency, Muramatsu 4-33, Tokai-mura, Naka-gun, Ibaraki 319-1194 (Japan)

2013-07-01T23:59:59.000Z

254

Determination of fallout 137Cs and naturally occuring gamma-ray emitters in sediments  

Science Journals Connector (OSTI)

With the advent of the nuclear age, a number of radionuclides were introduced into Man's natural radiation environment. Two of these radionuclides, cesium-137 and strontium-90, are of particular interest because of their long half lives and biological importance. Research at the U.S.D.A. Sedimentation Laboratory is being conducted on the movement and redistribution of 137Cs and the naturally occuring gamma-ray emitting radionuclides, thorium, uranium and potassium, in relation to cultural and erosional processes within watersheds. (1,2) This technical note describes the methods used at the U.S.D.A. Sedimentation Laboratory to determine137Cs and the naturally occurring gamma-ray emitters in sediments.

Jerry C. Ritchie; J.R. McHenry

1973-01-01T23:59:59.000Z

255

Determination of prescription dose for Cs-131 permanent implants using the BED formalism including resensitization correction  

SciTech Connect

Purpose: The current widely used biological equivalent dose (BED) formalism for permanent implants is based on the linear-quadratic model that includes cell repair and repopulation but not resensitization (redistribution and reoxygenation). The authors propose a BED formalism that includes all the four biological effects (4Rs), and the authors propose how it can be used to calculate appropriate prescription doses for permanent implants with Cs-131. Methods: A resensitization correction was added to the BED calculation for permanent implants to account for 4Rs. Using the same BED, the prescription doses with Au-198, I-125, and Pd-103 were converted to the isoeffective Cs-131 prescription doses. The conversion factor F, ratio of the Cs-131 dose to the equivalent dose with the other reference isotope (F{sub r}: with resensitization, F{sub n}: without resensitization), was thus derived and used for actual prescription. Different values of biological parameters such as ?, ?, and relative biological effectiveness for different types of tumors were used for the calculation. Results: Prescription doses with I-125, Pd-103, and Au-198 ranging from 10 to 160 Gy were converted into prescription doses with Cs-131. The difference in dose conversion factors with (F{sub r}) and without (F{sub n}) resensitization was significant but varied with different isotopes and different types of tumors. The conversion factors also varied with different doses. For I-125, the average values of F{sub r}/F{sub n} were 0.51/0.46, for fast growing tumors, and 0.88/0.77 for slow growing tumors. For Pd-103, the average values of F{sub r}/F{sub n} were 1.25/1.15 for fast growing tumors, and 1.28/1.22 for slow growing tumors. For Au-198, the average values of F{sub r}/F{sub n} were 1.08/1.25 for fast growing tumors, and 1.00/1.06 for slow growing tumors. Using the biological parameters for the HeLa/C4-I cells, the averaged value of F{sub r} was 1.07/1.11 (rounded to 1.1), and the averaged value of F{sub n} was 1.75/1.18. F{sub r} of 1.1 has been applied to gynecological cancer implants with expected acute reactions and outcomes as expected based on extensive experience with permanent implants. The calculation also gave the average Cs-131 dose of 126 Gy converted from the I-125 dose of 144 Gy for prostate implants. Conclusions: Inclusion of an allowance for resensitization led to significant dose corrections for Cs-131 permanent implants, and should be applied to prescription dose calculation. The adjustment of the Cs-131 prescription doses with resensitization correction for gynecological permanent implants was consistent with clinical experience and observations. However, the Cs-131 prescription doses converted from other implant doses can be further adjusted based on new experimental results, clinical observations, and clinical outcomes.

Luo, Wei, E-mail: wei.luo@uky.edu; Molloy, Janelle; Aryal, Prakash; Feddock, Jonathan; Randall, Marcus [Department of Radiation Medicine, University of Kentucky, Lexington, Kentucky 40536 (United States)] [Department of Radiation Medicine, University of Kentucky, Lexington, Kentucky 40536 (United States)

2014-02-15T23:59:59.000Z

256

137Cs in Urine of Tourists Who Visited Kiev Late in April, 1986. —Estimation of the Intake of 137Cs and 239Pu: Due to the Nuclear Reactor Accident—  

Science Journals Connector (OSTI)

......Urine of Tourists Who Visited Kiev Late in April, 1986. -Estimation of the Intake of 137Cs and 239Pu: Due to the Nuclear Reactor Accident- Teruhisa Watabe Kohki Sugawara * Division of Radioecology, Laboratory for Radioecology, Isozaki 3609......

Teruhisa Watabe; Kohki Sugawara

1987-06-01T23:59:59.000Z

257

Geometric and electronic properties of Cs structures on III-V (110) surfaces: From 1D and 2D insulators to 3D metals  

Science Journals Connector (OSTI)

We report the structural and electronic properties of Cs adsorbed on room-temperature GaAs and InSb (110) surfaces as observed with scanning tunneling microscopy. Cs initially forms long one-dimensional (1D) zigzag chains on both surfaces. Additional Cs adsorption on GaAs(110) results in the formation of a 2D overlayer consisting of five-atom Cs polygons arranged in c(4×4) superlattice. The tunneling gap measured over these insulating structures narrows with the transition from 1D to 2D, with metallic characteristics observed following saturation with a second Cs overlayer.

L. J. Whitman; Joseph A. Stroscio; R. A. Dragoset; R. J. Celotta

1991-03-11T23:59:59.000Z

258

Chernobyl {sup 137}Cs used to determine sediment accretion rates at selected northern European coastal wetlands  

SciTech Connect

Sediment cores were collected form five coastal wetlands along the North Sea (England and Netherlands) and Baltic Sea (Poland). {sup 137}Cs dating was used to assess sediment accretion rates, including rates based on the {sup 137}Cs peak from the 1986 accident at Chernobyl. Peaks form the Chernobyl fallout were found in cores from the Oder and Vistula Rivers in Poland, from the Eastern Scheldt in the Netherlands, and in one of the two cores from Stiffkey Marsh, UK. No evidence of Chernobyl fallout was found in cores from Dengie Marsh, UK. The Chernobyl {sup 137}Cs peak serves as an excellent marker for short-term accretion rates because of its high activity. Vertical accretion rates (cm yr{sup {minus}1}) based on 1963 and 1986 peaks were similar at most sites; differences may be due to large inputs of sediment from storms or recent accumulation of organic matter. Large differences in sediment characteristics and accretion rates were found between samples from Poland and western Europe. Vertical accretion rates over the period 1963-1986 ranged from 0.26 to 0.85 cm{sup {minus}1} and from 0.30 to 1.90 cm yr{sup {minus}1} over the 1986-1991 period. Vertical accretion rates for the period these sites are in imminent danger of excessive flooding. The Chernobyl {sup 137}Cs peak will be especially useful for studies of short-term (i.e. very recent) sedimentation in the near future and for comparisons of sediment processes over different time scales. 33 refs., 4 figs., 4 tabs.

Callaway, J.C.; DeLaune, R.D.; Patrick, W.H. Jr. [Louisiana State Univ., Baton Rouge, LA (United States)

1996-05-01T23:59:59.000Z

259

www.cs.virginia.edu Apr 1, 2009 -Apr 30, 2009  

E-Print Network (OSTI)

.virginia.edu / referral 873 5.32% images.google.com / referral 291 1.77% virginia.edu / referral 150 0.91% 1 Google (direct) ((none)) 7,519 45.83% google (organic) 5,795 35.32% seas.virginia.edu (referral) 873 5.32% images.google.com (referral) 291 1.77% virginia.edu (referral) 150 0.91% Keywords Visits % visits uva cs 166 2.68% uva

Robins, Gabriel

260

INTRODUCTION IFT3290 H2005 UDEM MIKL OS CS UR OS IFT 3290 HIVER 2005  

E-Print Network (OSTI)

«EGF receptor» au site Web de SWISS-PROT et suivez le lien vers EGFR HUMAN.) pleine d'information li´ee : e.g., structure 3D (www) (Suivez le lien «PDB» dans la ligne «HSSP».) S´equence MRPSGTAGAA-PROT INTRODUCTION IFT3290 H2005 UDEM MIKL ´OS CS UR ¨OS 7 ExPASy Home page Site Map Search ExPASy Contact us SWISS

Csürös, Miklós

Note: This page contains sample records for the topic "rb cs fr" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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261

Evaluation of aqueous Na{sup +}/Cs{sup +} separation by electrodialysis  

SciTech Connect

In support of the Hanford Site cleanup, electrodialysis is being investigated as a method to separate aqueous sodium (Na{sup +}) and cesium (Cs{sup +}) ions. The approach has many advantages over existing separation technologies; in particular, electrodialysis creates little secondary waste while producing usable acid and base streams. The fundamentals of electrodialysis are presented in this report to provide a foundation for interpreting experimental data. A flat-plate laboratory-scale apparatus was used to determine the feasibility of separating Na{sup +}/Cs{sup +} mixtures by electrodialysis. The results showed that Cs{sup +} is preferentially separated over Na{sup +} by a factor of 2 to 3 using a Nafion{reg_sign} 417 cationic membrane. The separation is relatively insensitive to solution ionic strength and flow-rate variations. The current efficiency of the separation ranges from 0.60 to 0.65 depending on the applied voltage. The laboratory-scale system was characterized by dimensional analysis, which demonstrated that the process could be scaled up to a size attractive for the volume of waste at the Hanford Site. Preliminary experiments on a bench-scale system were also conducted. The initial results showed that the current-voltage response of the laboratory- and the bench-scale unit is identical.

Buehler, M.F.; Lawrence, W.E.; Norton, J.D.

1993-12-01T23:59:59.000Z

262

Search for a light charged Higgs boson in the decay channel H^+  – > cŻs using the ATLAS detector.  

E-Print Network (OSTI)

??A search for a light charged Higgs boson (H^±) decaying into two jets (cŻs) using pp collisions at s = sqrt(7 TeV) is presented. A… (more)

Trifis, Omran

2013-01-01T23:59:59.000Z

263

The Seven Cs Ethical Model of Communication: Environmental Communication and Indigenous Knowledge Management Strategies in International Agricultural Development  

E-Print Network (OSTI)

for international organizations serving agricultural development. Conclusions for the 7Cs ethical model of communication offer perspective on the model as a discursive response to neoliberal policies and international development ethics....

McCann, Elisabeth

2012-10-19T23:59:59.000Z

264

CS 525: Advanced Database Organization Study of relational, semantic, and object-oriented data models and interfaces. Database management system  

E-Print Network (OSTI)

History of database management. Goals of database system development. Relational systems Data modelsCS 525: Advanced Database Organization Objectives Study of relational, semantic, and object-oriented data models and interfaces. Database management system techniques for query optimization, concurrency

Heller, Barbara

265

Yuening Hu, Jordan Boyd-Graber, Brianna Satinoff {ynhu, bsonrisa}@cs.umd.edu, jbg@umiacs.umd.edu  

E-Print Network (OSTI)

Yuening Hu, Jordan Boyd-Graber, Brianna Satinoff {ynhu, bsonrisa}@cs.umd.edu, jbg the words (Boyd-Graber et al., 2007) nasa shuttle space tea bagel god constitution president 19 #12

Boyd-Graber, Jordan

266

Magneto-Optic Trapping of 210Fr  

Science Journals Connector (OSTI)

The alkali element francium has no stable isotopes and has eluded extensive study because sufficient quantities have not been available for detailed investigations. More than 1000 210Fr atoms have now been contained in a magneto-optic trap. This number is sufficient to allow extensive studies of Fr atomic properties that are necessary input for future tests of fundamental interactions.

J. E. Simsarian; A. Ghosh; G. Gwinner; L. A. Orozco; G. D. Sprouse; P. A. Voytas

1996-05-06T23:59:59.000Z

267

APPLICATION OF BAYESIAN AND GEOSTATISTICAL MODELING TO THE ENVIRONMENTAL MONITORING OF CS-137 AT THE IDAHO NATIONAL LABORATORY  

SciTech Connect

At the Idaho National Laboratory (INL) Cs-137 concentrations above the U.S. Environmental Protection Agency risk-based threshold of 0.23 pCi/g may increase the risk of human mortality due to cancer. As a leader in nuclear research, the INL has been conducting nuclear activities for decades. Elevated anthropogenic radionuclide levels including Cs-137 are a result of atmospheric weapons testing, the Chernobyl accident, and nuclear activities occurring at the INL site. Therefore environmental monitoring and long-term surveillance of Cs-137 is required to evaluate risk. However, due to the large land area involved, frequent and comprehensive monitoring is limited. Developing a spatial model that predicts Cs-137 concentrations at unsampled locations will enhance the spatial characterization of Cs-137 in surface soils, provide guidance for an efficient monitoring program, and pinpoint areas requiring mitigation strategies. The predictive model presented herein is based on applied geostatistics using a Bayesian analysis of environmental characteristics across the INL site, which provides kriging spatial maps of both Cs-137 estimates and prediction errors. Comparisons are presented of two different kriging methods, showing that the use of secondary information (i.e., environmental characteristics) can provide improved prediction performance in some areas of the INL site.

Kara G. Eby

2010-08-01T23:59:59.000Z

268

Relationship between the {sup 137}Cs whole-body counting results and soil and food contamination in farms near Chernobyl  

SciTech Connect

The authors measured the radioactivity in the soil and child food samples from farms near Mogilev (56--270 GBq km{sup {minus}2} {sup 137}Cs), Gomel (36--810 GBq km{sup {minus}2} {sup 137}Cs), and Klincy (59--270 GBq km{sup {minus}2} {sup 137}Cs), who had whole-body {sup 137}Cs counting results measured as part of a health examination in the Chernobyl Sasakawa Health and Medical Cooperation Project. Soil contamination on the family farm seems to be the main source of human contamination because most of the people in the area live on small farms and they and their domestic animals eat crops from the farms. A clear correlation was found between the children's whole-body {sup 137}Cs counting results and the radioactivity in their food (correlation coefficient: 0.76; confidence level of correlation: 3.2 x 10{sup {minus}9}). There were also significant correlations between the whole-body {sup 137}Cs counting results and both the radioactivity of the soil samples (correlation coefficient: 0.22; confidence level of correlation: 0.0107) and the average contamination level of their current residence (correlation coefficient: 0.20; confidence level of correlation: 0.0174).

Takatsuji, Toshihiro; Sato, Hitoshi; Takada, Jun [and others] [and others

2000-01-01T23:59:59.000Z

269

Cs-137 in the Savannah River and the Beaufort-Jasper and Port Wentworth water-treatment plants  

SciTech Connect

Cesium-137 concentration measurements made in 1965 are reported for the Savannah River above and below the Savannah River Plant (SRP) and for the Beaufort-Jasper and Port Wentworth water treatment plants down river. These concentrations, measured when four SRP reactors (C, K, L, and P) were operating, were used to estimate Cs-137 reduction ratios for transport in the Savannah River and across each water treatment plant. In 1965 there was a 48% reduction in the Cs-137 concentration in the Savannah River between Highway 301 and the water treatment plant inlet points. Measured Cs-137 values in the finished water from Port Wentworth and the Beaufort-Jasper water treatment plants showed an 80% and 98% reduction in concentration level, respectively, when compared to Cs-137 concentration at Highway 301. The lower Cs-137 concentration (0.04 pCi/l) in the Beaufort-Jasper finished water is attributed to dilution in the canal from inflow of surface water (40%) and sediment cleanup processes that take place in the open portions of the canal (about 17 to 18 miles). Using the 1965 data, maximum Cs-137 concentrations expected in finished water in the Beaufort-Jasper and Port Wentworth water treatment plants following L-Reactor startup were recalculated. The recalculated values are 0.01 and 0.09 pCi/l for Beaufort-Jasper and Port Wentworth, respectively, compared to the 1.05 pCi/l value in the Environmental Assessment.

Hayes, D.W.; Boni, A.L.

1983-01-10T23:59:59.000Z

270

Aggregated Transfer Factors For Small Mammals Collected From the Exposed Sediments Of A 137 Cs Contaminated Reservoir  

SciTech Connect

{sup 137}Cs transfer factors were computed for small mammals collected from the dried sediment areas of a partially drained, contaminated reservoir. Soil {sup 137}Cs concentrations were heterogeneous on small and large spatial scales, with a geometric mean of 253.1 Bq/kg dry weight. About 50% of the variance in cotton rat Sigmodon hispidus tissue {sup 137}Cs levels was explained by variation in soil {sup 137}Cs levels. Soil to animal transfer factors (whole body dry weight) averaged 6.0 for cotton rats and 1.2 for cotton mice Peromyscus gossypinus. These values are similar to {sup 137}Cs transfer factors for herbivorous, homeothermic animals from other contaminated ecosystems. Site-specific transfer factors can significantly affect the estimation of dose. In the RESRAD-BIOTA dose model, the default transfer factor for {sup 137}Cs in terrestrial animals is 110 resulting in an estimate of radiation dose to terrestrial biota that is 16 times more than the dose calculated with the actual measured transfer factor.

Paller, Michael H.; Jannika, G. Timothy; Wike, Lynn D

2005-10-04T23:59:59.000Z

271

Long-Term Reduction in 137Cs Concentration in Food Crops on Coral Atolls Resulting from Potassium Treatment  

SciTech Connect

Bikini Island was contaminated March 1, 1954 by the Bravo detonation (U.S nuclear test series, Castle) at Bikini Atoll. About 90% of the estimated dose from nuclear fallout to potential island residents is from cesium-137 ({sup 137}Cs) transferred from soil to plants that are consumed by residents. Thus, radioecology research efforts have been focused on removing {sup 137}Cs from soil and/or reducing its uptake into vegetation. Most effective was addition of potassium (K) to soil that reduces {sup 137}Cs concentration in fruits to 3-5% of pretreatment concentrations. Initial observations indicated this low concentration continued for some time after K was last applied. Long-term studies were designed to evaluate this persistence in more detail because it is very important to provide assurance to returning populations that {sup 137}Cs concentrations in food (and, therefore, radiation dose) will remain low for extended periods, even if K is not applied annually or biennially. Potassium applied at 300, 660, 1260, and 2070 kg ha{sup -1} lead to a {sup 137}Cs concentration in drinking coconut meat that is 34, 22, 10, and about 4% of original concentration, respectively. Concentration of {sup 137}Cs remains low 8 to 10 y after K is last applied. An explanation for this unexpected result is discussed.

Robison, W L; Stone, E L; Hamilton, T F; Conrado, C L

2004-04-14T23:59:59.000Z

272

Long-Term Reduction in 137Cs Concentration in Food Crops on Coral Atolls Resulting from Potassium Treatment  

SciTech Connect

Bikini Island was contaminated March 1, 1954 by the Bravo detonation (U.S nuclear test series, Castle) at Bikini Atoll. About 90% of the estimated dose from nuclear fallout to potential island residents is from cesium-137 ({sup 137}Cs) transferred from soil to plants that are consumed by residents. Thus, radioecology research efforts have been focused on removing {sup 137}Cs from soil and/or reducing its uptake into vegetation. Most effective was addition of potassium (K) to soil that reduces {sup 137}Cs concentration in fruits to 3-5% of pretreatment concentrations. Initial observations indicated this low concentration continued for some time after K was last applied. Long-term studies were designed to evaluate this persistence in more detail because it is very important to provide assurance to returning populations that {sup 137}Cs concentrations in food (and, therefore, radiation dose) will remain low for extended periods, even if K is not applied annually or biennially. Potassium applied at 300, 660, 1260, and 1970 kg ha{sup -1} lead to a {sup 137}Cs concentration in drinking coconut meat that is 34, 22, 10, and about 4 % of original concentration, respectively. Concentration of {sup 137}Cs remains low 8 to 10 y after K is last applied. An explanation for this unexpected result is discussed.

Robison, W; Stone, E; Hamilton, T; Conrado, C

2005-04-08T23:59:59.000Z

273

Level structure of Fr215  

Science Journals Connector (OSTI)

The structure of Fr215 has been studied via the Pb208 (11B, 4n?)215Fr reaction at beam energies from 45 to 66 MeV. In-beam ?-ray spectroscopy techniques, including ?-ray excitation function, x-ray-? coincidence, ?-? coincidence, ?-ray angular distribution, and ?-ray linear polarization measurements were used to construct a level scheme up to a spin value J=(41/2) at an excitation energy of 3405 keV. Definite parity assignments were made up to the (39/2)- state. The structure of this nucleus is compared with that observed in the other N=128 isotopes and predictions of shell model calculations.

M. W. Drigert; J. A. Cizewski; M. S. Rosenthal

1985-07-01T23:59:59.000Z

274

Fr219, a transitional reflection asymmetric nucleus  

Science Journals Connector (OSTI)

Mass-separated sources of Ac223 (separated as AcF2+) were used to study the level structure of Fr219 following alpha decay. The levels in Fr219 are interpreted in terms of K=1/2±, 3/2±, and 5/2± parity doublet bands which have a natural theoretical explanation in terms of reflection asymmetric models. The 9/2- ground-state member of the K=1/2- band in Fr219 can be understood in terms of both reflection asymmetry and the collapse of the quadrupole-octupole Nilsson orbitals towards the h9/2 orbitals of spherical symmetry. Comparison of the K=1/2- ground-state bands in Fr219 and Fr221 reveals the details of this transformation. Theoretical analysis of the microscopic structure of several of the positive-parity bands indicates the presence of important Nilsson configurations arising from the shell below.

C. F. Liang; P. Paris; J. Kvasil; R. K. Sheline

1991-08-01T23:59:59.000Z

275

Optically controlled waveplate at a telecom wavelength using a ladder transition in Rb atoms for all-optical switching and high speed Stokesmetric Imaging  

E-Print Network (OSTI)

We demonstrate an optically controlled waveplate at ~1323 nm using the 5S1/2-5P1/2-6S1/2 ladder transition in a Rb vapor cell. The lower leg of the transitions represents the control beam, while the upper leg represents the signal beam. We show that we can place the signal beam in any arbitrary polarization state with a suitable choice of polarization of the control beam. Specifically, we demonstrate a differential phase retardance of ~180 degrees between the two circularly polarized components of a linearly polarized signal beam. We also demonstrate that the system can act as a Quarter Wave plate. The optical activity responsible for the phase retardation process is explained in terms of selection rules involving the Zeeman sublevels. As such, the system can be used to realize a fast Stokesmetric Imaging system with a speed of nearly 5 MHz. When implemented using a tapered nano fiber embedded in a vapor cell, this system can be used to realize an ultra-low power all-optical switch as well as a Quantum Zeno Effect based all-optical logic gate by combining it with an optically controlled polarizer, previously demonstrated by us. We present numerical simulations of the system using a comprehensive model which incorporates all the relevant Zeeman sub-levels in the system, using a novel algorithm recently developed by us for efficient computation of the evolution of an arbitrary large scale quantum system.

Subramanian Krishnamurthy; Y. Tu; Y. Wang; S. Tseng; M. S. Shahriar

2014-08-01T23:59:59.000Z

276

Observation of prolonged coherence time of the collective spin wave of an atomic ensemble in a paraffin-coated {sup 87}Rb vapor cell  

SciTech Connect

We report a prolonged coherence time of the collective spin wave of a thermal {sup 87}Rb atomic ensemble in a paraffin-coated cell. The spin wave is prepared through a stimulated Raman process. The long coherence time is achieved by prolonging the lifetime of the spins with paraffin coating and minimize dephasing with optimal experimental configuration. The observation of the long-time-delayed-stimulated Stokes signal in the writing process suggests the prolonged lifetime of the prepared spins; a direct measurement of the decay of anti-Stokes signal in the reading process shows the coherence time is up to 300 mus after minimizing dephasing. This is 100 times longer than the reported coherence time in the similar experiments in thermal atomic ensembles based on the Duan-Lukin-Cirac-Zoller and its improved protocols. This prolonged coherence time sets the upper limit of the memory time in quantum repeaters based on such protocols, which is crucial for the realization of long-distance quantum communication. The previous reported fluorescence background in the writing process due to collision in a sample cell with buffer gas is also reduced in a cell without buffer gas.

Jiang Shuo; Luo Xiaoming; Chen Liqing; Ning Bo [Physics Department, Tsinghua University, Beijing 100084 (China); Chen Shuai [Physikalisches Institute, Universitaet Heidelberg, 69120 Heidelberg (Germany); Wang Jingyang; Zhong Zhiping [College of Physical Sciences, Graduate University of the Chinese Academy of Sciences, P.O. Box 4588, Beijing 100049 (China); Pan Jianwei [Physics Department, Tsinghua University, Beijing 100084 (China); Physikalisches Institute, Universitaet Heidelberg, 69120 Heidelberg (Germany)

2009-12-15T23:59:59.000Z

277

Structure of gramicidin D-RbCl complex at atomic resolution from low-temperature synchrotron data: interactions of double-stranded gramicidin channel contents and cations with channel wall  

SciTech Connect

Gramicidin D (gD) is a naturally occurring ionophoric antibiotic that forms membrane channels specific for monovalent cations. The crystal structure of the RbCl complex of gD has been determined at 1.14 {angstrom} resolution from low-temperature (100 K) synchrotron-radiation data with a final R of 16%. The structure was refined with anisotropic temperature factors for all non-H atoms and with partial occupancies for many of them. The asymmetric unit in the crystal contains four crystallographically independent molecules that form two right-handed antiparallel double-stranded dimers. There are seven distinct rubidium-binding sites in each dimeric channel. The occupancy factors of Rb cations are between 0.11 and 0.35 and the total ion contents of the two crystallographically independent channels are 1.59 and 1.22 ions, respectively. Although each channel is 'chemically symmetrical', the side-chain conformations, the distributions of rubidium cations and their binding sites in the two independent channels are not. Cations are 'coordinated' by delocalized {pi}-electrons of three to five carbonyl groups that together with peptide backbone chains form the gramicidin channel walls. The water:cation ratio in the channel interior is four or five:one, and five or six waters separate Rb cations during their passage through the channel.

Glówka, M.L.; Olczak, A.; Bojarska, J.; Szczesio, M.; Duax, W.L.; Burkhart, B.M.; Pangborn, W.A.; Langs, D.A.; Wawrzak, Z. (Poland); (NWU); (Hauptman)

2010-03-05T23:59:59.000Z

278

Quantum Control of the Hyperfine Spin of a Cs Atom Ensemble  

SciTech Connect

We demonstrate quantum control of a large spin angular momentum associated with the F=3 hyperfine ground state of {sup 133}Cs. Time-dependent magnetic fields and a static tensor light shift are used to implement near-optimal controls and map a fiducial state to a broad range of target states, with yields in the range 0.8-0.9. Squeezed states are produced also by an adiabatic scheme that is more robust against errors. Universal control facilitates the encoding and manipulation of qubits and qudits in atomic ground states and may lead to the improvement of some precision measurements.

Chaudhury, Souma; Herr, Tobias; Jessen, Poul S. [College of Optical Sciences, University of Arizona, Tucson, Arizona 85721 (United States); Merkel, Seth; Silberfarb, Andrew; Deutsch, Ivan H. [Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87131 (United States)

2007-10-19T23:59:59.000Z

279

Photoionization rates of Cs Rydberg atoms in a 1064-nm far-off-resonance trap  

SciTech Connect

Experimental measurements of photoionization rates of nD{sub 5/2} Rydberg states of Cs (50{<=}n{<=}75) in a 1064-nm far off-resonance dipole trap are presented. The photoionization rates are obtained by measuring the lifetimes of Rydberg atoms produced inside of a 1064-nm far off-resonance trap and comparing the lifetimes to corresponding control experiments in a magneto-optical trap. Experimental results for the control experiments agree with recent theoretical predictions for Rydberg state lifetimes and measured photoionization rates are in agreement with transition rates calculated from a model potential.

Tallant, J.; Booth, D.; Shaffer, J. P. [Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, 440 West Brooks Street, Norman, Oklahoma 73019 (United States)

2010-12-15T23:59:59.000Z

280

Illite in the Oklo natural fission reactors in Gabon: Considerations for Cs containment  

SciTech Connect

The {approximately} 2 Ga old Oklo, Okelobondo and Bangombe natural reactors in the Republic of Gabon contain solid graphitic bitumens and clay minerals, both of which have effected the containment, or partial containment, of {sup 235}U and several fission products. In laboratory experiments, sorption of {sup 134}Cs by illite, and illite coated with petroleum was measured in aqueous NaCl solutions to simulate subsurface (connate) waters in sedimentary rocks. Elevated temperatures and increasing salinity of the NaCl solutions facilitated the removal of sorbed cesium from illite.

Szabo, G.; Guczi, J. [Frederic Joliot-Curie National Research Inst. for Radiobiology and Radiohygiene, Budapest (Hungary); Nagy, B. [Univ. of Arizona, Tucson, AZ (United States); Janeczek, J. [Uniwersytet Slaski, Sosnowiec (Poland); Ewing, R.C. [Univ. of New Mexico, Albuquerque, NM (United States). Dept. of Earth and Planetary Sciences

1995-12-31T23:59:59.000Z

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


281

Carrier Density Enhancement in Semiconducting NaSn and CsPb  

Science Journals Connector (OSTI)

The electrical conductivity ? and thermoelectric power S data have been measured in two semiconductors that undergo a solid-state transformation to a dynamically disordered phase about 100 °C below the melting point. At the transition, ? for NaSn is reduced while that for CsPb exhibits a dramatic rise. For both semiconductors, S is reduced in magnitude and changes sign at the transition. These results are consistent with a model which explicitly allows for the interactions between mobile ions and electrons and which provides a unified explanation of the transport properties of these compounds and other fast ion conductors with appreciable electronic conductivity.

J. Fortner, Marie-Louise Saboungi, and J. E. Enderby

1995-02-20T23:59:59.000Z

282

Time-Resolved Molecular Frame Dynamics of Fixed-in-Space CS2 Molecules  

SciTech Connect

Random orientation of molecules within a sample leads to blurred observationsof chemical reactions studied from the laboratory perspective. Methodsdeveloped for the dynamic imaging of molecular structures and processesstruggle with this, as measurements are optimally made in the molecular frame.Here we uselaser alignment to transiently fix CS2 molecules in space longenough to elucidate, in the molecular reference frame, details of ultrafast electronic vibrationaldynamics during a photochemical reaction. These three-dimensional photoelectron imaging results, combined with ongoing efforts in molecular alignment and orientation, presage a wide range of insights obtainable fromtime-resolved studies in the molecular frame.

Bisgaard, Christer; Clarkin, Owen; Wu, Guorong; Lee, Anthony; Gessner, Oliver; Hayden, Carl; Stolow, Albert

2009-04-02T23:59:59.000Z

283

Temporal variations in 134Cs and 137Cs concentrations in seawater along the Shimokita Peninsula and the northern Sanriku coast in northeastern Japan, one year after the Fukushima Dai-ichi Nuclear Power Plant accident  

Science Journals Connector (OSTI)

Abstract Ninety-six seawater samples were collected between May 2011 and March 2012 at 6 sites along the Shimokita Peninsula and the northern Sanriku coast, 250–450 km north of the Fukushima Dai-ichi Nuclear Power Plant (FDNPP). Cesium-134 and 137Cs concentrations were determined by low-background ?-spectrometry. During May–June 2011, 134Cs and 137Cs concentrations in surface waters decreased from 1.0–2.8 to 0.7–1.5 mBq/L and from 2.1–3.9 to 1.9–3.0 mBq/L, respectively. These decreases were due to diffusion and advection in the ocean after atmospheric input of the FDNPP-derived radionuclides. However, in July–August 2011, the concentrations of both radionuclides in the water samples collected on the Pacific side of the Shimokita Peninsula and the northern Sanriku coast exhibited 30–50-fold increases (?40 mBq/L for 134Cs and ?50 mBq/L for 137Cs) over concentrations observed at these sampling sites in June 2011 in contrast to the gradual decreases in the concentrations on the Tsugaru Strait side of the Shimokita Peninsula. These results suggest that radiocesium-contaminated waters offshore in the Pacific Ocean were transported to coastal regions along the Pacific side of the Shimokita Peninsula and the northern Sanriku coast by ocean currents.

Hisaki Kofuji; Mutsuo Inoue

2013-01-01T23:59:59.000Z

284

Perturbation-theoretical-model calculation of the lattice mechanics of the NaF and RbF crystals in the Watson potential approximation  

Science Journals Connector (OSTI)

A simplified version of the perturbation-theoretical-model approach to ionic solids developed by Basu and Sengupta has been employed for calculating the different lattice-mechanical properties of the two low-polarizability ionic crystals. Although this is not a microscopic calculation, the interesting feature of the method is that the only input data necessary for predicting the crystal properties are the Hartree-Fock wave functions of the constituent ions. In addition, the present investigation for the first time makes an attempt to study the effect of the alteration of the free-ion wave functions, when the ions are put in a crystal, on the lattice-dynamical properties. The effect of the crystal environment is thought to be simulated by the Watson potential. The calculated properties with and without the potential give a rough estimate of the order of magnitude of this effect. It is found that certain properties, namely, the dielectric properties and some phonons in the symmetry directions that depend on the excited states of the crystal, are rather sensitive to this effect which varies from crystal to crystal. Apart from this, a unified treatment of the cohesion, the phase transition, and the elastic, the dielectric, and the vibrational properties of the NaF and RbF crystals is presented without any adjustable free parameter. In view of the simplicity of the approach, the overall agreement obtained is satisfactory. Finally the reliability and the limitations of the present method of estimating the effect of the surroundings are critically discussed.

D. Bose; A. Ghosh; A. N. Basu

1984-03-15T23:59:59.000Z

285

Nanocrystalline Cs{sub x}WO{sub 3} particles: Effects of N{sub 2} annealing on microstructure and near-infrared shielding characteristics  

SciTech Connect

In order to further improve the near-infrared shielding properties of cesium tungsten bronze (Cs{sub x}WO{sub 3}) for solar filter applications, Cs{sub x}WO{sub 3} particles were prepared by solvothermal reaction method and the effects of nitrogen annealing on the microstructure and near-infrared shielding properties of Cs{sub x}WO{sub 3} were investigated. The obtained Cs{sub x}WO{sub 3} samples were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy and spectrophotometer. The results indicate that nanosheet-like Cs{sub x}WO{sub 3} particles with hexagonal structure began to transform into nanorods after annealed at temperature higher than 600 °C. The near-infrared shielding properties of Cs{sub x}WO{sub 3} particles could be further improved by N{sub 2} annealing at 500–700 °C. Particularly, the 500 °C-annealed Cs{sub x}WO{sub 3} samples in the N{sub 2} atmosphere showed best near-infrared shielding properties. It was suggested that the excellent near-infrared shielding ability of the 500 °C-annealed Cs{sub x}WO{sub 3} samples is correlated with its minimum O/W atomic ratio and most oxygen vacancies. Highlights: • N{sub 2} annealing could further improve the near-infrared (NIR) shielding of Cs{sub x}WO{sub 3}. • Effects of N{sub 2} annealing on microstructure and NIR shielding of Cs{sub x}WO{sub 3} were studied. • The 500 °C-N{sub 2}-annealed Cs{sub x}WO{sub 3} exhibited minimum O/W ratio and most oxygen vacancies. • The 500 °C-N{sub 2}-annealed Cs{sub x}WO{sub 3} particles exhibited best NIR shielding properties.

Liu, Jing-Xiao, E-mail: drliu-shi@dlpu.edu.cn [School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034 (China); Institute of Multidisciplinary Research for Advanced Material, Tohoku University, Sendai, 980-8577,Japan (Japan); Shi, Fei; Dong, Xiao-Li; Xu, Qiang [School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034 (China); Yin, Shu; Sato, Tsugio [Institute of Multidisciplinary Research for Advanced Material, Tohoku University, Sendai, 980-8577,Japan (Japan)

2013-10-15T23:59:59.000Z

286

Watts Bar Unit 1 Cycle Zero Power Physics Tests Analysis with VERA-CS  

SciTech Connect

The Consortium for Advanced Simulation of Light Water Reactors (CASL) is developing a collection of methods and software products known as VERA, the Virtual Environment for Reactor Applications, including a core simulation capability called VERA-CS. A key milestone for this endeavor is to validate VERA against measurements from operating nuclear power reactors. The first step in validation against plant data is to determine the ability of VERA to accurately simulate the initial startup physics tests for Watts Bar Nuclear Power Station, Unit 1 (WBN1) cycle 1. VERA-CS calculations were performed with the Insilico code developed at ORNL using cross section processing from the SCALE system and the transport capabilities within the Denovo transport code using the SPN method. The calculations were performed with ENDF/B-VII.0 cross sections in 252 groups (collapsed to 23 groups for the 3D transport solution). The key results of the comparison of calculations with measurements include initial criticality, control rod worth critical configurations, control rod worth, differential boron worth, and isothermal temperature reactivity coefficient (ITC). The VERA results for these parameters show good agreement with measurements, with the exception of the ITC, which requires additional investigation. Results are also compared to those obtained with Monte Carlo methods and a current industry core simulator.

Gehin, Jess C [ORNL; Godfrey, Andrew T [ORNL; Evans, Thomas M [ORNL; Hamilton, Steven P [ORNL; Francheschini, F. [Westinghouse Electric Company, Cranberry Township

2014-01-01T23:59:59.000Z

287

Studies of Cs3Sb cathodes for the CLIC drive beam photo injector option  

E-Print Network (OSTI)

Within the CLIC (Compact Linear Collider) project, feasibility studies of a photo injector option for the drive beam as an alternative to its baseline design using a thermionic electron gun are on-going. This R&D program covers both the laser and the photocathode side. Whereas the available laser pulse energy in ultra-violet (UV) is currently limited by the optical defects in the 4thharmonics frequency conversion crystal induced by the0.14 ms long pulse trains, recent measurements of Cs3Sbphotocathodes sensitive to green light showed their potential to overcome this limitation. Moreover, using visible laser beams leads to better stability of produced electron bunches and one can take advantages of the availability of higher quality optics. The studied Cs3Sbphotocathodes have been produced in the CERN photo emission laboratory using the co-deposition technique and tested in a DC gun set-up. The analysis of data acquired during the cathode production process will be presented in this paper, as well as the r...

Martini, Irene; Doebert, Steffen; Fedosseev, Valentine; Hessler, Christoph; Martyanov, Mikhail

2013-01-01T23:59:59.000Z

288

Paramagnetic Resonance Hyperfine Structure of Tetravalent Pa231 in Cs2ZrCl6  

Science Journals Connector (OSTI)

Paramagnetic resonance absorption at 3-cm wavelengths is observed for tetravalent Pa231 in a single crystal of Cs2ZrCl6 at helium temperatures. The observed spectra correspond to the allowed transitions (Sz, Iz?Sz±1, Iz) and the forbidden transitions (Sz, Iz?Sz±1, Iz?1) of a system described by the spin Hamiltonian, Hs=g?H·S+AI·S-gn??H·I, with S=12, I=32, |A|h=1578.6±1.4 Mc/sec, |g|=1.1423±0.0014, and |gn?|?8×10-4. The errors indicate a small deviation from isotropy. It is further observed that gn?g<0, indicating that if gn? is positive, as is strongly indicated by the nuclear shell model, then g is negative. An additional electron-nuclear double-resonance experiment is used to determine directly the nuclear magnetic moment ?(Pa231)=1.96 nuclear magnetons. This value includes a correction of 9% due to perturbations of an excited state about 1900 cm-1 above the ground-state doublet of Pa4+ in its octahedral crystal field. A lower frequency double-resonance experiment is used to measure the weak hyperfine interaction of the Pa4+ ion with its Cs133 neighbors, of order A??h?0.5 Mc/sec.

J. D. Axe; H. J. Stapleton; C. D. Jeffries

1961-03-15T23:59:59.000Z

289

Glass Ceramic Waste Forms for Combined CS+LN+TM Fission Products Waste Streams  

SciTech Connect

In this study, glass ceramics were explored as an alternative waste form for glass, the current baseline, to be used for immobilizing alkaline/alkaline earth + lanthanide (CS+LN) or CS+LN+transition metal (TM) fission-product waste streams generated by a uranium extraction (UREX+) aqueous separations type process. Results from past work on a glass waste form for the combined CS+LN waste streams showed that as waste loading increased, large fractions of crystalline phases precipitated upon slow cooling.[1] The crystalline phases had no noticeable impact on the waste form performance by the 7-day product consistency test (PCT). These results point towards the development of a glass ceramic waste form for treating CS+LN or CS+LN+TM combined waste streams. Three main benefits for exploring glass ceramics are: (1) Glass ceramics offer increased solubility of troublesome components in crystalline phases as compared to glass, leading to increased waste loading; (2) The crystalline network formed in the glass ceramic results in higher heat tolerance than glass; and (3) These glass ceramics are designed to be processed by the same melter technology as the current baseline glass waste form. It will only require adding controlled canister cooling for crystallization into a glass ceramic waste form. Highly annealed waste form (essentially crack free) with up to 50X lower surface area than a typical High-Level Waste (HLW) glass canister. Lower surface area translates directly into increased durability. This was the first full year of exploring glass ceramics for the Option 1 and 2 combined waste stream options. This work has shown that dramatic increases in waste loading are achievable by designing a glass ceramic waste form as an alternative to glass. Table S1 shows the upper limits for heat, waste loading (based on solubility), and the decay time needed before treatment can occur for glass and glass ceramic waste forms. The improvements are significant for both combined waste stream options in terms of waste loading and/or decay time required before treatment. For Option 1, glass ceramics show an increase in waste loading of 15 mass % and reduction in decay time of 24 years. Decay times of {approx}50 years or longer are close to the expected age of the fuel that will be reprocessed when the modified open or closed fuel cycle is expected to be put into action. Option 2 shows a 2x to 2.5x increase in waste loading with decay times of only 45 years. Note that for Option 2 glass, the required decay time before treatment is only 35 years because of the waste loading limits related to the solubility of MoO{sub 3} in glass. If glass was evaluated for similar waste loadings as those achieved in Option 2 glass ceramics, the decay time would be significantly longer than 45 years. These glass ceramics are not optimized, but already they show the potential to dramatically reduce the amount of waste generated while still utilizing the proven processing technology used for glass production.

Crum, Jarrod V.; Turo, Laura A.; Riley, Brian J.; Tang, Ming; Kossoy, Anna; Sickafus, Kurt E.

2010-09-23T23:59:59.000Z

290

High-Rate Seafood Consumers near Sellafield: Comparison of Conventional Assessments of 137Cs Intakes with the Results of Whole-Body Monitoring  

Science Journals Connector (OSTI)

...Radiation Protection Dosimetry Article High-Rate Seafood Consumers near Sellafield: Comparison of Conventional Assessments of 137Cs Intakes with the Results of Whole-Body Monitoring......

G.J. Hunt; D.R.P. Leonard; F.A. Fry

1989-03-01T23:59:59.000Z

291

137Cs Inter-Plant Concentration Ratios Provide a Predictive Tool for Coral Atolls with Distinct Benefits Over Transfer Factors  

SciTech Connect

Inter-plant concentration ratios (IPCR), [Bq g{sup -1} {sup 137}Cs in coral atoll tree food-crops/Bq g{sup -1} {sup 137}Cs in leaves of native plant species whose roots share a common soil volume], can replace transfer factors (TF) to predict {sup 137}Cs concentration in tree food-crops in a contaminated area with an aged source term. The IPCR strategy has significant benefits relative to TF strategy for such purposes in the atoll ecosystem. IPCR strategy applied to specific assessments takes advantage of the fact tree roots naturally integrate 137Cs over large volumes of soil. Root absorption of {sup 137}Cs replaces large-scale, expensive soil sampling schemes to reduce variability in {sup 137}Cs concentration due to inhomogeneous radionuclide distribution. IPCR [drinking-coconut meat (DCM)/Scaevola (SCA) and Tournefortia (TOU) leaves (native trees growing on all atoll islands)] are log normally distributed (LND) with geometric standard deviation (GSD) = 1.85. TF for DCM from Enewetak, Eneu, Rongelap and Bikini Atolls are LND with GSD's of 3.5, 3.0, 2.7, and 2.1, respectively. TF GSD for Rongelap copra coconut meat is 2.5. IPCR of Pandanus fruit to SCA and TOU leaves are LND with GSD = 1.7 while TF GSD is 2.1. Because IPCR variability is much lower than TF variability, relative sampling error of an IPCR field sample mean is up 6- to 10-fold lower than that of a TF sample mean if sample sizes are small (10 to 20). Other IPCR advantages are that plant leaf samples are collected and processed in far less time with much less effort and cost than soil samples.

Robison, W L; Hamilton, T F; Bogen, K; Corado, C L; Kehl, S R

2007-07-17T23:59:59.000Z

292

137Cs(90Sr) and Pu isotopes in the Pacific Ocean sources & trends  

SciTech Connect

The main source of artificial radioactivity in the world`s oceans can be attributed to worldwide fallout from atmospheric nuclear weapons testing. Measurements of selected artificial radionuclides in the Pacific Ocean were first conducted in the 1960`s where it was observed that fallout radioactivity had penetrated the deep ocean. Extensive studies carried out during the 1973-74 GEOSECS provided the first comprehensive data on the lateral and vertical distributions of {sup 9O}Sr, {sup 137}Cs and Pu isotopes in the Pacific on a basin wide scale. Estimates of radionuclide inventories in excess of amounts predicted to be delivered by global fallout alone were attributed to close-in fallout and tropospheric inputs from early U.S. tests conducted on Bikini and Enewetak Atolls in the Equatorial Pacific. In general, levels of fallout radionuclides (including {sup 9O}Sr, {sup 137}Cs and Pu isotopes) in the surface waters of the Pacific Ocean have decreased considerably over the past 4 decades and are now much more homogeneously distributed. Resuspension and the subsequent deposition of fallout radionuclides from previously deposited debris on land has become an important source term for the surface ocean. This can be clearly seen in measurements of fallout radionuclides in mineral aerosols over the Korean Peninsula (Yellow dust events). Radionuclides may also be transported from land to sea in river runoff-these transport mechanisms are more important in the Pacific Ocean where large quantities of river water and suspended sands/fluvial sediments reach the coastal zone. Another unique source of artificial radionuclides in the Pacific Ocean is derived from the slow resolubilization and transport of radionuclides deposited in contaminated lagoon and slope sediments near U.S. and French test sites. Although there is a small but significant flux of artificial radionuclides depositing on the sea floor, > 80% of the total 239, {sup 240}Pu inventory and > 95% of the total {sup 137}Cs inventory remains in the water column. Studies conducted through the 1980`s appear to be consistent with earlier findings and indicate that radionuclide inventories in mid-northern latitudes are at least a factor of two above those expected from global fallout alone. The long term persistence of close-in and/or stratospheric fallout from nuclear weapons testing in the Marshall Islands still appears to be the only plausible explanation for this anomaly.

Hamilton, T.F., Millies-Lacrox, J.C. [Service Mixte de Securite Radologique, Mondhery (France); Hong, G.H. [Korea Ocean Research and Development Institute, Ansan (Korea)

1996-11-01T23:59:59.000Z

293

FR PI Report April-June 2012  

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

9, 2012 9, 2012 MEMORANDUM FOR DISTRIBUTION _L7 _ r FR) Program Performance Indicators Quarterly Report covering the period from April through June 2012. Data for these indicators were gathered by field elements per Department of Energy (DOE) Technical Standard 1063-2011, Facility Representatives, and reported to Headquarters program offices for evaluation and feedback to improve the FR Program. Highlights from this report include: FR Staffing/Qualification/Oversight Data * DOE was staffed at 176 FR Full Time Equivalents (FTE), which is 95 percent of

294

Kursplan fr vrterminen 2007 FLODRESTAURERING VVR170  

E-Print Network (OSTI)

). Danish Environmental Protection Agency, Ministry of Environment and Energy, Denmark. Gratis via (link aspekter. Erfarenheter frĂĄn Sverige och internationellt. Litteratur 1. Madsen B.L., 1995. Danish

295

Monitoring of FR Cnc Flaring Activity  

E-Print Network (OSTI)

Being excited by the detection of the first ever-observed optical flare in FR Cnc, we decided to continue photometrical monitoring of this object. The observations were carried out at Crimean Astrophysical Observatory (Crimea, Ukraine; CrAO - hereafter) and at the Terskol Observatory (Russia, Northern Caucasus). The obtained lightcurves are presented and discussed. No distinguishable flares were detected that could imply that flares on FR Cnc are very rare event.

A. Golovin; M. Andreev; E. Pavlenko; Yu. Kuznyetsova; V. Krushevska; A. Sergeev

2007-12-10T23:59:59.000Z

296

Test of internal-conversion theory with measurements in Cs-134 and Ba-137  

E-Print Network (OSTI)

-ray areas 2717400(5300) 1712200(4400) 2633700(5100) 1904100(4600) 80Brm impurity K x rays (%) ?0.18(2) ?0.28(3) ?0.38(4) 122Sb impurity K x rays (%) ?0.066(2) ?0.292(8) ?0.056(2) 124Sb impurity K x rays (%) ?0.0088(4) ?0.0473(9) ?0.0074(3) 134Cs g...-Holland, Amsterdam 1958). [2] R. S. Hager and E. C. Seltzer, Nucl. Data, Sect. A 4, 1 (1968). [3] F. Ro?sel, H. M. Fries, K. Alder, and H. C. Pauli, At. Data Nucl. Data Tables 21, 91 (1978). [4] I. M. Band and M. B. Trzhaskovskaya, Tables of Gamma Ray Internal...

Nica, N.; Hardy, John C.; Iacob, V. E.; Rockwell, W. E.; Trzhaskovskaya, M. B.

2007-01-01T23:59:59.000Z

297

Measurement of the 3D Born-Oppenheimer Potential of a Proton in a Hydrogen-Bonded System via Deep Inelastic Neutron Scattering: The Superprotonic Conductor Rb{sub 3}H(SO{sub 4}){sub 2}  

SciTech Connect

We report the first direct measurement of the proton 3-D Born-Oppenheimer potential in any material. The proton potential surfaces in the hydrogen-bonded superprotonic conductor Rb{sub 3}H(SO{sub 4}){sub 2} are extracted from the momentum distribution measured using Deep Inelastic Neutron Scattering (DINS). The potential has a single minimum along the bond direction, which accounts for the absence of the antiferroelectric transition seen in the deuterated material. The measured potential is in qualitative agreement with phenomenological double Morse potentials that have been used to describe hydrogen bonds in other systems.

Homouz, D.; Reiter, G. [Physics Department, University of Houston, Houston, Texas, 77204 (United States); Eckert, J. [LANSCE, Los Alamos National Laboratory, and University of California, Santa Barbara, California (United States); Mayers, J. [ISIS, Rutherford Appelton Laboratory, Chilton, Didcot, England (United Kingdom); Blinc, R. [Stefan Jozef Institut, Lubljana (Slovenia)

2007-03-16T23:59:59.000Z

298

Study of the Rabi splitting at the 5P{sub 3/2} {yields} 5D{sub 5/2,3/2} transitions in the {sup 87}Rb atom upon cascade excitation in a magnetooptical trap  

SciTech Connect

The level splitting appearing upon cascade excitation of the 5D{sub 5/2} and 5D{sub 3/2} levels of the {sup 87}Rb atom in a magnetooptical trap is studied experimentally. The 5S{sub 5/2} and 5P{sub 3/2} levels are coupled by a cooling laser field, the Rabi frequency being comparable with the rate of spontaneous decay of the 5P{sub 3/2} level. The experimental spectral profiles are compared with a theoretical model. (laser spectroscopy)

Akimov, A V; Tereshchenko, E O; Snigirev, S A; Samokotin, A Yu; Sokolov, A V; Sorokin, Vadim N [P N Lebedev Physical Institute, Russian Academy of Sciences, Moscow (Russian Federation)

2010-02-28T23:59:59.000Z

299

FR Cnc Revisited: Photometry, Polarimetry and Spectroscopy  

E-Print Network (OSTI)

Here we present the study of FR Cnc, a young, active and spotted star. We performed analysis of ASAS-3 (The All Sky Automated Survey) data for the years 2002-2008 and amended the value of the rotational period to be 0.826518 d. The amplitude of photometric variations decreased abruptly in the year 2005, while the mean brightness remained the same, which was interpreted as a quick redistribution of spots. BVRc and Ic broad band photometric calibration was performed for 166 stars in FR Cnc vicinity. The photometry at Terskol Observatory shows two brightening episodes, one of which occurred at the same phase as the flare of 2006 November 23. Polarimetric BVR observations indicate the probable presence of a supplementary source of polarization. We monitored FR Cnc spectroscopically during the years 2004-2008. We concluded that the RV changes cannot be explained by the binary nature of FR Cnc. We determined the spectral type of FR Cnc as K7V. Calculated galactic space-velocity components (U, V, W) indicate that FR...

Golovin, A; Hernan-Obispo, M; Andreev, M; Barnes, J R; Montes, D; Pavlenko, E; Pandey, J C; Martinez-Arnaiz, R; Medhi, B J; Parihar, P S; Henden, A; Sergeev, A; Zaitsev, S V; Karpov, N

2011-01-01T23:59:59.000Z

300

1 000 000 "C/s thin film electrical heater: ln situ resistivity measurements of Al and Ti/Si thin films during ultra rapid thermal annealing  

E-Print Network (OSTI)

introduce a new technique for rapidly heating (10' "C/s) thin films using an electrical thermal annealing- ently, most commercial RTA systems use radiation-heating techniques via tungsten-halogen lamps. These systems typi- cally have a maximum heating rate of 100-300 "C/s. We introduce an alternative methodfor

Allen, Leslie H.

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


301

Distribution of oceanic 137Cs from the Fukushima Dai-ichi Nuclear Power Plant simulated numerically by a regional ocean model  

Science Journals Connector (OSTI)

Radioactive materials were released to the environment from the Fukushima Dai-ichi Nuclear Power Plant as a result of the reactor accident after the Tohoku earthquake and tsunami of 11 March 2011. The measured 137Cs concentration in a seawater sample near the Fukushima Dai-ichi Nuclear Power Plant site reached 68 kBq L?1 (6.8 × 104 Bq L?1) on 6 April. The two major likely pathways from the accident site to the ocean existed: direct release of high radioactive liquid wastes to the ocean and the deposition of airborne radioactivity to the ocean surface. By analysis of the 131I/137Cs activity ratio, we determined that direct release from the site contributed more to the measured 137Cs concentration than atmospheric deposition did. We then used a regional ocean model to simulate the 137Cs concentrations resulting from the direct release to the ocean off Fukushima and found that from March 26 to the end of May the total amount of 137Cs directly released was 3.5 ± 0.7 PBq ((3.5 ± 0.7) × 1015 Bq). The simulated temporal change in 137Cs concentrations near the Fukushima Daini Nuclear Power Plant site agreed well with observations. Our simulation results showed that (1) the released 137Cs advected southward along the coast during the simulation period; (2) the eastward-flowing Kuroshio and its extension transported 137C during May 2011; and (3) 137Cs concentrations decreased to less than 10 Bq L?1 by the end of May 2011 in the whole simulation domain as a result of oceanic advection and diffusion. We compared the total amount and concentration of 137Cs released from the Fukushima Dai-ichi reactors to the ocean with the 137Cs released to the ocean by global fallout. Even though the measured 137Cs concentration from the Fukushima accident was the highest recorded, the total released amount of 137Cs was not very large. Therefore, the effect of 137Cs released from the Fukushima Dai-ichi reactors on concentration in the whole North Pacific was smaller than that of past release events such as global fallout, and the amount of 137Cs expected to reach other oceanic basins is negligible comparing with the past radioactive input.

Daisuke Tsumune; Takaki Tsubono; Michio Aoyama; Katsumi Hirose

2012-01-01T23:59:59.000Z

302

Impacts of Radioactive 137Cs on Marine Bacterioplankton: Effects of the Fukushima Disaster on Hawaii's Kaneohe Bay Bacterial Communities  

E-Print Network (OSTI)

-Daiichi Nuclear Power Plant to emit 10 PBq of radiation2 , the largest ever release of anthropogenic radionuclides into the ocean4 . The main pollutant, 137 Cs, has a half-life of 30 years and will first hit the US territories

Heller, Paul

303

Technical article Wiley Handbook of Science and Technology for Homeland Security Article ID:CS29 Page 1  

E-Print Network (OSTI)

Technical article Wiley Handbook of Science and Technology for Homeland Security Article ID:CS29 Network, RFID, Embedded, Security, Privacy Abstract As embedded computer systems continue to explode and the design constraints posed by these systems that make security difficult. We summarize current research

Stankovic, John A.

304

THE DEPARTMENT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE, CS DIVISION Presents the Spring 2014 EECS Seminar Series  

E-Print Network (OSTI)

A In the era of "Big data", when we design mining and retrieval models for large data (e.g., in the orderTHE DEPARTMENT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE, CS DIVISION Presents the Spring 2014 large amount of data). Tradi onal mining and retrieval models tend to get more and more costly

Stanley, Kenneth O.

305

Computer Science Master's (M.Sc.) and Doctoral (Ph.D.) Programs www.cs.usask.ca/gradstudies  

E-Print Network (OSTI)

Computer Science Master's (M.Sc.) and Doctoral (Ph.D.) Programs www.cs.usask.ca/gradstudies Computer Science Master's (M.Sc.) and Doctoral (Ph.D.) Programs Expertise in computing is needed everywhere. Digital information processing has permeated all

Saskatchewan, University of

306

Security enhancements for FPGA-based MPSoCs: a boot-to-runtime protection flow for an embedded  

E-Print Network (OSTI)

Security enhancements for FPGA-based MPSoCs: a boot-to-runtime protection flow for an embedded solutions to securely boot a bitstream and the associated OS while runtime transactions are not protected. This work proposes a full boot-to-runtime protection flow of an embedded Linux kernel during boot

Paris-Sud XI, Université de

307

Brillouin light scattering anomalies and new phase transition in Cs5H3(SO4)4 crystals  

E-Print Network (OSTI)

by dielectric measurements [1,4], neutron scattering [5] and NMR spec- troscopy [6], and the vibration spectrum was investigated by IR, Raman, Brillouin and neutron scattering in a wide temperature range [7­10]. NeverthelessBrillouin light scattering anomalies and new phase transition in Cs5H3(SO4)4 crystals S

308

Advanced Electrodes for Solid Acid Fuel Cells by Platinum Deposition on CsH2PO4  

Science Journals Connector (OSTI)

Advanced Electrodes for Solid Acid Fuel Cells by Platinum Deposition on CsH2PO4 ... The unique characteristics of the CDP electrolyte pose several challenges to SAFC optimization, particularly in the area of cathode microstructure. ... 1% CO demonstrates the potential of this approach with optimized reforming catalysts and also the tolerance to CO poisoning at these elevated temps. ...

Alexander B. Papandrew; Calum R.I. Chisholm; Ramez A. Elgammal; Mustafa M. Özer; Strahinja K. Zecevic

2011-03-15T23:59:59.000Z

309

arXiv:1003.5447v2[cs.LO]14May2010 Relating Nominal and Higher-order  

E-Print Network (OSTI)

, nominal logic, higher-order abstract syn- tax This work has been supported by INRIA through the "Equipes]. Formalizing speci- fication based on higher-order abstract syntax requires a frame- work with devicesarXiv:1003.5447v2[cs.LO]14May2010 Relating Nominal and Higher-order Abstract Syntax Specifications

Paris-Sud XI, Université de

310

Vacancy hardening in single-crystal TiNx,,001... layers C.-S. Shin, D. Gall,a)  

E-Print Network (OSTI)

Vacancy hardening in single-crystal TiNx,,001... layers C.-S. Shin, D. Gall,a) N. Hellgren, J; accepted 27 February 2003 We investigate the effect of N vacancies on the mechanical properties are entirely due to anion vacancies. Hardness values increase continuously, while the elastic modulus decreases

Gall, Daniel

311

Infinite Hidden Markov Models via the Hierarchical Dirichlet Process Matthew J. Beal # (presenting author) beal@cs.toronto.edu  

E-Print Network (OSTI)

Infinite Hidden Markov Models via the Hierarchical Dirichlet Process Matthew J. Beal # (presenting author) beal@cs.toronto.edu Yee Whye Teh + ywteh@eecs.berkeley.edu Michael I. Jordan + jordan model (iHMM) of Beal et al. [2]. The iHMM is a hidden Markov model (HMM) in which the number of hidden

Beal, Matt J.

312

137Cs in irrigation water and its effect on paddy fields in Japan after the Fukushima nuclear accident  

Science Journals Connector (OSTI)

Abstract There is concern that radiocesium deposited in the environment after the accident at the Fukushima Daiichi Nuclear Power Plant (FDNPP) in March 2011 will migrate to paddy fields through hydrological pathways and cause serious and long-lasting damage to the agricultural activities. This study was conducted in the Towa region of Nihonmatsu in the northern part of Fukushima Prefecture, Japan, (1) to quantify 137Cs in stream water used to irrigate paddy fields by separating the dissolved and particulate components in water samples and then fractionating the particulate components bonded in different ways using a sequential extraction procedure, and (2) to determine the amounts of radiocesium newly added to paddy fields in irrigation water relative to the amounts of radiocesium already present in the fields from the deposition of atmospheric fallout immediately after the FDNPP accident. Three catchments were studied, and the 137Cs activity concentrations in stream water samples were 79–198 mBq L? 1 under stable runoff conditions and 702–13,400 Bq L? 1 under storm runoff conditions. The residual fraction (F4, considered to be non-bioavailable) was dominant, accounting for 59.5–82.6% of the total 137Cs activity under stable runoff conditions and 69.4–95.1% under storm runoff conditions. The 137Cs newly added to paddy fields in irrigation water only contributed 0.03–0.05% of the amount already present in the soil (201–348 kBq m? 2). This indicates that the 137Cs inflow load in irrigation water is negligible compared with that already in the soil. However, the contribution from the potentially bioavailable fractions (F1 + F2 + F3) was one order of magnitude larger, accounting for 0.20–0.59%. The increase in the dissolved and soluble radiocesium fraction (F1) was especially large (3.0% to infinity), suggesting that radiocesium migration in irrigation water is increasing the accumulation of radiocesium in rice.

Natsuki Yoshikawa; Hitomi Obara; Marie Ogasa; Susumu Miyazu; Naoki Harada; Masanori Nonaka

2014-01-01T23:59:59.000Z

313

1 Mo 1 Do 1 Sa 1 Di 1 Fr 1 Fr 1 Mo 1 Mi 1 Sa 1 Mo 1 Do 1 So 2 Di 2 Fr 2 So 2 Mi 2 Sa 2 Sa 2 Di 2 Do 2 So 2 Di 2 Fr 2 Mo  

E-Print Network (OSTI)

1 Mo 1 Do 1 Sa 1 Di 1 Fr 1 Fr 1 Mo 1 Mi 1 Sa 1 Mo 1 Do 1 So 2 Di 2 Fr 2 So 2 Mi 2 Sa 2 Sa 2 Di 2 Do 2 So 2 Di 2 Fr 2 Mo 3 Mi 3 Sa 3 Mo 3 Do 3 So 3 So 3 Mi 3 Fr 3 Mo 3 Mi 3 Sa 3 Di 4 Do 4 So 4 Di 4 Fr 4 Mo 4 Mo 4 Do 4 Sa 4 Di 4 Do P StAU4 So 4 Mi 5 Fr 5 Mo 5 Mi 5 Sa 5 Di 5 Di 5 Fr 5 So 5 Mi 5 Fr 5 Mo

Mayberry, Marty

314

Geodesic Congruences in the Palatini f(R) Theory  

E-Print Network (OSTI)

We shall investigate the properties of a congruence of geodesics in the framework of Palatini f(R) theories. We shall evaluate the modified geodesic deviation equation and the Raychaudhuri's equation and show that f(R) Palatini theories do not necessarily lead to attractive forces. Also we shall study energy condition for f(R) Palatini gravity via a perturbative analysis of the Raychaudhuri's equation.

Fatimah Shojai; Ali Shojai

2008-11-18T23:59:59.000Z

315

Small Column Ion Exchange Testing of Superlig 644 for Removal of 137Cs from Hanford Tank Waste Envelope C (Tank 241-AN-107)  

SciTech Connect

The current BNFL Inc. flowsheet for the pretreatment of the Hanford high-level tank wastes includes the use of Superlig{reg_sign} materials for removing {sup 137}Cs from the aqueous fraction of the waste. The Superlig materials applicable to cesium removal include the cesium-selective Superlig 632and Superlig 644. These materials have been developed and supplied by IBC Advanced Technologies, Inc., American Fork, Utah. This report describes the testing of the Superlig 644 ion exchange material in a small dual-column system. The bed volume of the lead column was 18.6 mL (L/D = 7), and the bed volume of the lag column was 15.9 mL (L/D = 6) during the loading phase. The sample processed was approximately 1.6 L of diluted waste ([Na{sup +}] = 4.84 M) from Tank 241-AN-107 (Envelope C). This sample had been previously treated for removal of Sr/transuranic (TRU) values and clarified in a single tube cross-flow filtration unit. All ion exchange process steps were tested, including resin-bed preparation, loading, feed displacement, water rinse, elution, eluant rinse, and resin regeneration. A summary of performance measures for both columns is shown in Table S1. The Cs {lambda} values represent a measure of the effective capacity of the SL-644 resin. The Cs {lambda} of 20 for the lead column is much lower than the estimated 150 obtained by the Savannah River Technology Center during Phase 1A testing. Equilibrium data obtained with batch contacts using the AN-107 Cs IX feed predicts a Cs {lambda} of 183. A Cs {lambda} for the lag column could not be determined due to insufficient breakthrough, but it appeared to work well and removed nearly all of the cesium not removed by the lead column. The low value for the lead column indicates that it did not perform as expected. This may have been due to air or gas in the bed that caused fluid channeling or blinding of the resin. The maximum decontamination factor (DF) for {sup 137}Cs listed in Table S1 is based on {sup 137}Cs concentration in the first samples collected from each column and the {sup 137}Cs concentration in the feed. The composite DF for {sup 137}Cs was 1,760, which provided an effluent with a {sup 137}Cs concentration of 8.7E-02 Ci/m{sup 3}. The {sup 137}Cs concentration is below the basis of design limit and is 7.2% of the contract limit for {sup 137}Cs.

DE Kurath; DL Blanchard; JR Bontha

2000-06-28T23:59:59.000Z

316

Notice of Open Meeting, Federal Register, 64 FR 44912, August...  

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

Register, 64 FR 44912, August 18, 1999 Document displays the notice of open meeting for Measurement and Verification Guidelines for Federal Energy Projects, which was published...

317

Notice of Availability, Federal Register, 75 FR 78231, December...  

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

Federal Register, 75 FR 78231, December 15, 2010 Notice of availability for the Management of Energy and Water Efficiency in Federal Buildings, which was published in the...

318

Spin-Lattice Relaxation of Tetravalent Pa231 in Cs2ZrCl6  

Science Journals Connector (OSTI)

The paramagnetic relaxation time was measured for Pa4+ in the cubic matrix Cs2(99% Zr, 1% Pa) Cl6 between 1.4 and 4.2°K, using pulse-saturation techniques. This complex, with its known and comparable spin-orbit and crystal field interactions, was chosen to determine whether the approximations for the orbit-lattice interaction, which are apparently valid for rare-earth ions, would remain so for ions of the 5f transition group. The data fit T1-1=A?T+C?T9, where A?=3.46±0.34 sec-1 deg-1 and C?=5.1×10-5±1.5×10-5 sec-1 deg-9. The static crystal field parameters A40?r4?=888 cm-1 and A60?r6?=41.9 cm-1 are used to estimate the coupling parameters |a4m?r4?| and |a6m?r6?| to the fourth- and sixth-degree spherical harmonics in the orbit-lattice interaction. The coupling to the second-degree spherical harmonics is treated in terms of a a single parameter |a20?r2?|. The speed of longitudinal sound waves in a polycrystalline sample of pure Cs2ZrCl6 was measured and found to be 4.5×105 cm/sec. Using this value for the effective phonon velocity, the theoretical relaxation rate is computed in terms of the single parameter |a20?r2?|. A comparison with the experimental direct-process coefficient A? indicates |a20?r2?|?17 000 cm-1, while comparison with the Raman coefficient C? yields |a20?r2?|?30 000 cm-1. A dynamic point-charge model, based upon a phonon-induced distrotion of the octahedron of Cl- ions surrounding the Pa4+ site, shows that |a20?r2?| should be approximately 23 000 cm-1 if it is to be consistent with the values of |a4m?r4?| and |a6m?r6?| obtained from the static crystal field parameters. This reasonable agreement supports the contention that estimating correct order-of-magnitude spin-lattice relaxation rates by Orbach's simple phenomenological approach is not restricted to the rare-earth series.

L. J. Raubenheimer; E. Boesman; H. J. Stapleton

1965-03-01T23:59:59.000Z

319

Dilatometric study of critical behavior in CsPbCl3: Bicritical point at 41 °C  

Science Journals Connector (OSTI)

High-quality crystals of CsPbCl3 were grown by the Czochralski technique with automatic diameter control by the weighing method. A sample was prepared for high-resolution dilatometric measurements of the thermal expansion along a cubic [100] direction. The linear strain, ?L/L, was measured in the temperature interval 28–55 °C, and anomalies associated with three phase transitions were observed. Emphasis was put on the critical behavior in the close vicinity of the second-order II-III phase transition at 41 °C. The temperature variation of the anomalous thermal expansivity follows a power law ??t?-0.18 in the ordered phase. This is in excellent agreement with the expected behavior of the spontaneous strain in cubic perovskites at an n=2 bicritical point. Also the [100]-stress–temperature phase diagram was measured for the II-III transition. The phase boundary line for compressional stress ? is well described by Tc(?)-Tc(0)??1/? with ?=1.175, consistent with the unstressed transition being an n=2 bicritical point. This is the first observation of such bicriticality in a structural system.

T. H. Johansen; J. Feder; T. Jo/ssang

1988-04-01T23:59:59.000Z

320

Triplet-singlet conversion in ultracold Cs{sub 2} and production of ground-state molecules  

SciTech Connect

We propose a process to convert ultracold metastable Cs{sub 2} molecules in their lowest triplet state into (singlet) ground-state molecules in their lowest vibrational levels. Molecules are first pumped into an excited triplet state, and the triplet-singlet conversion is facilitated by a two-step spontaneous decay through the coupled A {sup 1{Sigma}}{sub u}{sup +}-b {sup 3{Pi}}{sub u} states. Using spectroscopic data and accurate quantum chemistry calculations for Cs{sub 2} potential curves and transition dipole moments, we show that this process competes favorably with the single-photon decay back to the lowest triplet state. In addition, we demonstrate that this conversion process represents a loss channel for vibrational cooling of metastable triplet molecules, preventing an efficient optical pumping cycle down to low vibrational levels.

Bouloufa, Nadia; Aymar, Mireille; Dulieu, Olivier [Laboratoire Aime Cotton, CNRS, Universite Paris-Sud, Bat. 505, F-91405 Orsay (France); Pichler, Marin [Physics Department, Goucher College, Baltimore, Maryland 21204 (United States)

2011-02-15T23:59:59.000Z

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


321

Superfund record of decision (EPA Region 1): Otis Air National Guard, (AOC CS-1 (USCG)), Falmouth, MA, September 29, 1995  

SciTech Connect

The Massachusetts Military Reservation (MMR) on Cape Cod, Massachusetts, lies within the boundaries of the towns of Falmouth, Mashpee, Sandwich, and Bourne. The U.S. Coast Guard (USCG) Transmitter Station, designed Area of Contamination (AOC) CS-1 (USCG) is located adjacent to the eastern boundary of the MMR. The NGB, acting as executive agent of the USCG, and USEPA, with concurrence of the Commonwealth of Massachusetts, have determined that No Action is necessary to address the contamination at AOC CS-1 (USCG). However, groundwater monitoring will be performed at well WW-7 for a period of five years to provide information over time on the levels of volatile organic compounds (VOCs) detected in this well, and on the sporadic detection of inorganics in groundwater at this AOC.

NONE

1996-03-01T23:59:59.000Z

322

Energy resolution and energy-light response of CsI(TI) scintillators for charged particle detection  

E-Print Network (OSTI)

This article describes the crystal selection and quality control utilized to develop and calibrate a high resolution array of CsI(TI) scintillator crystals for the detection of energetic charged particles. Alpha sources are used to test the light output variation due to thallium doping gradients. Selection of crystals with better than 1% non-uniformity in light output is accomplished using this method. Tests with 240 MeV alpha beam reveal that local light output variations within each of the tested CsI(TI) crystals limit the resolution to about 0.5%. Charge and mass dependences in the energy - light output relationship are determined by calibrating with energetic projectile fragmentation beams.

A. Wagner; W. P. Tan; K. Chalut; R. J. Charity; B. Davin; Y. Larochelle; M. D. Lennek; T. X. Liu; W. G. Lynch; A. M. Ramos; R. Shomin; L. G. Sobotka; R. T. de Souza; M. B. Tsang; G. Verde; H. S. Xu

2000-04-28T23:59:59.000Z

323

ASSESSMENT OF 90SR AND 137CS PENETRATION INTO REINFORCED CONCRETE (EXTENT OF 'DEEPENING') UNDER NATURAL ATMOSPHERIC CONDITIONS  

SciTech Connect

When assessing the feasibility of remediation following the detonation of a radiological dispersion device or improvised nuclear device in a large city, several issues should be considered including the levels and characteristics of the radioactive contamination, the availability of resources required for decontamination, and the planned future use of the city's structures and buildings. Currently, little is known about radionuclide penetration into construction materials in an urban environment. Knowledge in this area would be useful when considering costs of a thorough decontamination of buildings, artificial structures, and roads in an affected urban environment. Pripyat, a city substantially contaminated by the Chernobyl Nuclear Power Plant accident in April 1986, may provide some answers. The main objective of this study was to assess the depth of {sup 90}Sr and {sup 137}Cs penetration into reinforced concrete structures in a highly contaminated urban environment under natural weather conditions. Thirteen reinforced concrete core samples were obtained from external surfaces of a contaminated building in Pripyat. The concrete cores were drilled to obtain sample layers of 0-5, 5-10, 10-15, 15-20, 20-30, 30-40, and 40-50 mm. Both {sup 90}Sr and {sup 137}Cs were detected in the entire 0-50 mm profile of the reinforced cores sampled. In most of the cores, over 90% of the total {sup 137}Cs inventory and 70% of the total {sup 90}Sr inventory was found in the first 0-5 mm layer of the reinforced concrete. {sup 90}Sr had penetrated markedly deeper into the reinforced concrete structures than {sup 137}Cs.

Farfan, E.; Jannik, T.

2011-10-01T23:59:59.000Z

324

Near-UV Observations of CS29497-030: New Constraints on Neutron-Capture Nucleosynthesis Processes  

E-Print Network (OSTI)

Employing spectra obtained with the new Keck I HIRES near-UV sensitive detector, we have performed a comprehensive chemical composition analysis of the binary blue metal-poor star CS29497-030. Abundances for 29 elements and upper limits for an additional seven have been derived, concentrating on elements largely produced via neutron-capture nucleosynthesis. Included in our analysis are the two elements that define the termination point of the slow neutron-capture process, lead and bismuth. We determine an extremely high value of [Pb/Fe] = +3.65 +/- 0.07 (sigma = 0.13) from three features, supporting the single-feature result obtained in previous studies. We also detect Bi for the first time in a metal-poor star. Our derived Bi/Pb ratio is in accord with those predicted from the most recent FRANEC calculations of the slow neutron-capture process in low-mass AGB stars. We find that the neutron-capture elemental abundances of CS29497-030 are best explained by an AGB model that also includes very significant amounts of pre-enrichment of rapid neutron-capture process material in the protostellar cloud out of which the CS29497-030 binary system formed. Thus, CS29497-030 is both an ``r+s'' and ``extrinsic AGB'' star. Furthermore, we find that the mass of the AGB model can be further constrained by the abundance of the light odd-element [Na/Fe] which is sensitive to the neutron excess.

Inese I. Ivans; Christopher Sneden; Roberto Gallino; John J. Cowan; George W. Preston

2005-04-29T23:59:59.000Z

325

arXiv:1002.4996v1[cs.DM]26Feb2010 Triangular Self-Assembly  

E-Print Network (OSTI)

arXiv:1002.4996v1[cs.DM]26Feb2010 Triangular Self-Assembly Lila Kari Shinnosuke Seki Zhi Xu 5B7 {lila, sseki, zhi_xu}@csd.uwo.ca February 27, 2010 Abstract We discuss the self-assembly system in their laboratory by the method of self-assembly. One systematic study on this topic is the self-assembly of squares

Kari, Lila

326

Comparison of {sup 241}Am, {sup 239,240}Pu, and {sup 137}Cs concentrations in soil around Rocky Flats  

SciTech Connect

Gamma spectroscopy measurements were used to estimate concentrations of {sup 241}Am and {sup 137}Cs in soil profiles to depths of 21 cm at on-site and off-site locations around the Rocky Flats Environmental Technology Site and at regional background locations east of the Front Range between Colorado`s borders with New Mexico and Wyoming. Concentrations of these radionuclides were compared with concentrations of {sup 239,240}Pu in the same samples. Concentrations of {sup 241}Am in soil from depths of 0 to 3 cm decreased in an easterly direction from more than 5.3 kBq kg{sup {minus}1} 5 to 7 km away at a rate that was nearly proportional to the inverse square of distance. Deposits of {sup 137}Cs were ubiquitous, averaging 0.12 kBq kg{sup {minus}1} in soil from depths of 0 to 3 cm, but were unevenly distributed around Rocky Flats and the regional background locations. Deviations from the uniform exponential rate at which soil concentrations of {sup 137}Cs typically decreased with depth, {minus}0.25 cm{sup {minus}1} at undisturbed sites, enabled the authors to determine that about 10% of their sampling sites had been disturbed by erosion, tillage, or other factors. The mean rate at which {sup 239,240}Pu decreased with depth was about the same, {minus}0.23 cm{sup {minus}1}, throughout the study area. Soil concentrations of {sup 241}Am decreased with depth at a similar mean rate of {minus}0.22 cm{sup {minus}1} at locations close to the 903 pad where measurements were robust. Ratios between {sup 241}Am or {sup 239,240}Pu and {sup 137}Cs proved more useful for delineating the extent and pattern of contamination from Rocky Flats than did activity concentrations in soil.

Hulse, S.E.; Ibrahim, S.A.; Whicker, F.W.; Chapman, P.L. [Colorado State Univ., Fort Collins, CO (United States)

1999-03-01T23:59:59.000Z

327

A novel catalyst coated membrane embedded with Cs-substituted phosphotungstates for proton exchange membrane water electrolysis  

Science Journals Connector (OSTI)

Abstract Catalyst coated membrane (CCM) is the core component of proton exchange membrane (PEM) water electrolysis and the main place for electrochemical reaction and mass transfer. Its properties directly affect the performance of PEM water electrolysis. Aiming at decreasing the polarization loss and the ohmic loss, a novel CCM embedded with Cs1.5HPA in the skeleton of the Nafion® ionomer and the Nafion® membrane was prepared and possessed functionality of improved protonic conductivity. Meanwhile, the Cs1.5HPA-Nafion ionomer content in the catalyst layers was further optimized. The SEM, EDS and pore volume distribution measurement showed that the Cs1.5HPA embedded in the CCM without agglomeration and the micropore and mesopore were well distributed in the catalyst layer. Furthermore, \\{CCMs\\} were tested in a PEM water electrolyser at 80 °C, beneficial effects on both the Tafel slope and the iR loss were obtained due to the improved protonic conductivity as well as the appropriate pore structure and increased specific pore volume. The performance of the electrolyser cell was obviously improved with the novel CCM. The highest cell performance of 1.59 V at 2 A cm?2 was achieved at 80 °C. At 35 °C and 300 mA cm?2, the cell showed good durability within the test period of up to 570 h.

Gaoyang Liu; Junyuan Xu; Yituo Wang; Juming Jiang; Xindong Wang

2014-01-01T23:59:59.000Z

328

Effect of Potassium on Uptake of 137Cs in Food Crops Grown on Coral Soils: Annual Crops at Bikini Atoll  

SciTech Connect

In 1954 a radioactive plume from the thermonuclear device code named BRAVO contaminated the principal residential islands, Eneu and Bikini, of Bikini Atoll (11{sup o} 36 minutes N; 165{sup o} 22 minutes E), now part of the Republic of the Marshall Islands. The resulting soil radioactivity diminished greatly over the three decades before the studies discussed below began. By that time the shorter-lived isotopes had all but disappeared, but strontium-90 ({sup 90}Sr), and cesium-137, ({sup 137}Cs) were reduced by only one half-life. Minute amounts of the long-lived isotopes, plutonium-239+240 ({sup 239+240}Pu) and americium-241 ({sup 241}Am), were present in soil, but were found to be inconsequential in the food chain of humans and land animals. Rather, extensive studies demonstrated that the major concern for human health was {sup 137}Cs in the terrestrial food chain (Robison et al., 1983; Robison et al., 1997). The following papers document results from several studies between 1986 and 1997 aimed at minimizing the {sup 137}Cs content of annual food crops. The existing literature on radiocesium in soils and plant uptake is largely a consequence of two events: the worldwide fallout of 1952-58, and the fallout from Chernobyl. The resulting studies have, for the most part, dealt either with soils containing some amount of silicate clays and often with appreciable K, or with the short-term development of plants in nutrient cultures.

Stone, E R; Robinson, W

2002-02-01T23:59:59.000Z

329

High energy second-harmonic generation of Nd:glass laser radiation with large aperture CsLiB6O10 crystals  

Science Journals Connector (OSTI)

We have demonstrated the generation of a high-energy green laser pulse using large aperture CsLiB6O10 (CLBO) crystals for the first time to our knowledge. A pulsed energy of 25 J at...

Kiriyama, Hiromitsu; Inoue, Norihiro; Yamakawa, Koichi

2002-01-01T23:59:59.000Z

330

Current Concentration of Artificial Radionuclides and Estimated Radiation Doses from 137Cs around the Chernobyl Nuclear Power Plant, the Semipalatinsk Nuclear Testing Site, and in Nagasaki  

Science Journals Connector (OSTI)

......137Cs around the Chernobyl Nuclear Power Plant, the Semipalatinsk Nuclear Testing Site, and in Nagasaki...the Chernobyl accident and nuclear tests at SNTS were simultaneously...from sev- eral statistical datasets, as there were no detailed......

Yasuyuki Taira; Naomi Hayashida; Gopalganapathi M. Brahmanandhan; Yuji Nagayama; Shunichi Yamashita; Jumpei Takahashi; Alexander Gutevitc; Alexander Kazlovsky; Marat Urazalin; Noboru Takamura

2011-01-01T23:59:59.000Z

331

Superprotonic Phase Transition in CsH(PO3H) Calum R. I. Chisholm, Ryan B. Merle, Dane A. Boysen, and Sossina M. Haile*  

E-Print Network (OSTI)

and like typical salts of phosphorous acid, it contains the tetrahedral group PO3H.12 The overall chemical) was synthesized from aqueous solutions of cesium carbonate and phosphorous acid in which the Cs:PO3H mole ratio

332

Regulation of the PDK4 Isozyme by the Rb-E2F1 Complex*S Received for publication,March 27, 2008, and in revised form, July 24, 2008 Published, JBC Papers in Press,July 30, 2008, DOI 10.1074/jbc.M802418200  

E-Print Network (OSTI)

Regulation of the PDK4 Isozyme by the Rb-E2F1 Complex*S Received for publication,March 27, 2008-induced diabetes. Here, we dem- onstrate that E2F1 directly regulates the gene encoding PDK4 (pyruvate sen- sitivity to insulin stimulation. Consistently, enforced E2F1 expression up-regulates PDK4 levels

333

Cosmological evolutions of F(R) nonlinear massive gravity  

Science Journals Connector (OSTI)

Recently a new extended nonlinear massive gravity model has been proposed which includes the F(R) modifications to the de Rham–Gabadadze–Tolley model. We follow the F(R) nonlinear massive gravity and study its implications on cosmological evolutions. We derive the critical points of the cosmic system and study the corresponding kinetics by performing the phase-plane analysis.

De-Jun Wu

2014-08-25T23:59:59.000Z

334

Name Class PMAJ1 Adams, Emily Nicole FR SYE  

E-Print Network (OSTI)

, Joshua Keith SR ELE Ryan, Christopher JR BE Schrecker, Christopher Daniel JR MEE Seamans, Kimberly Anne, Adam Michael SO NMS Owan, Parker Prescott FR ELE Oxnam, Nathan Wesley SO COE Page, Christopher Lee SR Michael SO ELE #12;Vazquez, Paul Michael JR SYE Wang, Sichao FR ELE Weeks, Christopher Lee SR ELE West

Wong, Pak Kin

335

Hyperfine structure of the 7p state in Fr  

Science Journals Connector (OSTI)

By the use of relativistic many-body theory, the hyperfine structure of the 7p state of Fr211 was calculated. By including polarization effects in all orders, good agreement for the magnetic dipole constant was obtained. In the same way, a new value of the electric quadrupole moment is obtained: Q=-240 mb for Fr211(P322).

Jean-Louis Heully and Ann-Marie Mĺrtensson-Pendrill

1983-06-01T23:59:59.000Z

336

Robust approach to f(R) gravity  

SciTech Connect

We consider metric f(R) theories of gravity without mapping them to their scalar-tensor counterpart, but using the Ricci scalar itself as an ''extra'' degree of freedom. This approach avoids then the introduction of a scalar-field potential that might be ill defined (not single valued). In order to explicitly show the usefulness of this method, we focus on static and spherically symmetric spacetimes and deal with the recent controversy about the existence of extended relativistic objects in certain class of f(R) models.

Jaime, Luisa G. [Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, Apartado Postal 70-543, Mexico Distrito Federal 04510 (Mexico); Facultad de Ciencias, Universidad Nacional Autonoma de Mexico, Apartado Postal 50-542, Mexico Distrito Federal 04510 (Mexico); Patino, Leonardo [Facultad de Ciencias, Universidad Nacional Autonoma de Mexico, Apartado Postal 50-542, Mexico Distrito Federal 04510 (Mexico); Salgado, Marcelo [Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, Apartado Postal 70-543, Mexico Distrito Federal 04510 (Mexico)

2011-01-15T23:59:59.000Z

337

Phylogeny.fr: Robust Phylogenetic Analysis for the Non-Specialist A. Dereeper1,*  

E-Print Network (OSTI)

1 Phylogeny.fr: Robust Phylogenetic Analysis for the Non-Specialist A. Dereeper1,* , V. Guignon2 reconstruction and the graphical representation of the inferred tree. The Phylogeny.fr platform transparently the specialists will be able to easily build and run sophisticated analyses. Phylogeny.fr offers three main modes

Paris-Sud XI, Université de

338

Distribution and Ratios of 137Cs and K in Control and K-treated Coconut Trees at Bikini Island where Nuclear Test Fallout Occurred: Effects and Implications  

SciTech Connect

Coconut trees growing on atolls of the Bikini Islands are on the margin of K deficiency because the concentration of exchangeable K in coral soil is very low ranging from only 20 to 80 mg kg{sup -1}. When provided with additional K, coconut trees absorb large quantities of K and this uptake of K significantly alters the patterns of distribution of {sup 137}Cs within the plant. Following a single K fertilization event, mean total K in trunks of K-treated trees is 5.6 times greater than in trunks of control trees. In contrast, {sup 137}Cs concentration in trunks of K-treated and control trees is statistically the same while {sup 137}Cs is significantly lower in edible fruits of K treated trees. Within one year after fertilization (one rainy season), K concentration in soil is back to naturally, low concentrations, however, the tissue concentrations of K in treated trees stays very high internally in the trees for years while {sup 137}Cs concentration in treated trees remains very low in all tree compartments except for the trunk. Potassium fertilization did not change soil Cs availability. Mass balance calculations suggest that the fertilization event increased above ground plant K content by at least a factor of 5 or 2.2 kg. Potassium concentrations and content were higher in all organs of K fertilized trees with the greatest increases seen in organs that receive a portion of tissue K through xylem transport (trunk, fronds and fruit husks) and lowest in organs supplied predominantly with K via the phloem (palm heart, spathe, coco meat and fluid). {sup 137}Cesium concentrations and contents were dramatically lower in all organs of K treated trees with greatest proportional reductions observed in organs supplied predominantly with K via the phloem (palm heart, spathe, coco meat and fluid). All trees remobilize both K and {sup 137}Cs from fronds as they proceed toward senescence. In control trees the reduction in concentration of K and {sup 137}Cs in fronds as they age is logarithmic but K remobilization is linear in K-treated trees where K concentration is high. As a result of K treatment the {sup 137}Cs concentration in K-treated fronds is extremely low and constant with frond age. Fronds of K treated trees contain a greater amount of K than control tree fronds. As they fall to the ground and decay they provide a small continuing pool of K that is about 3% of the natural K in soil under the tree canopy. Results of K and {sup 137}Cs concentration and distribution in control and K-treated coconut trees suggest that the application of K reduces {sup 137}Cs uptake both in the short term immediately following K fertilization and in the long term, after soil K levels have returned to normal but while plant K stores remain high. These results suggests that high internal K concentration and not high soil K is primarily responsible for long-term reduction of {sup 137}Cs in edible fruits, and plays a significant role in limiting further uptake of {sup 137}Cs by roots, and affects allocation of {sup 137}Cs to edible fruits for years. Coconut trees are capable of luxury K accumulation when provided with excess K and in this example the additional K can effectively provide the K requirements of the plant for in excess of 10 years. The reduction of {sup 137}Cs uptake lasts for at least 10 y after K is last applied and greatly reduces the estimated radiation dose to people consuming local tree foods. Effectiveness and duration of K treatment provides important assurances that reduction in {sup 137}Cs is long term and the radiation dose from consuming local plant foods will remain low.

Robison, W L; Brown, P H; Stone, E L; Hamilton, T F; Conrado, C L; Kehl, S R

2008-05-19T23:59:59.000Z

339

{sup 137}Cs exposure in the Marshallese populations: An assessment based on whole-body counting measurements (1989-1994)  

SciTech Connect

The Marshall Islands were the site of numerous tests of nuclear weapons by the United States. From 1946 to 1958, nuclear devices were detonated at Enemetak and Bikini Atolls. Following the inadvertent contamination of the northern islands downwind of the 1954 Bravo Test, Brookhaven National Laboratory became involved in the medical care and the radiological safety of the affected populations. One important technique employed in assessing the internally deposited radionuclides is whole-body counting. To estimate current and future exposures to 1376, data from 1989 to 1994 were analyzed and are reported in this paper. During this period, 3,618 measurements were made for the Marshallese. The cesium body contents were assumed to result from a series of chronic intakes. Also, it was assumed that cesium activity in the body reaches a plateau that is maintained over 365 d. We estimated the annual effective dose rate for each population, derived from the recommendations of the International Commission on Radiological Protection. The average {sup 137}Cs uptake measured by the whole-body counting method varies from one population to another; it was consistent with measurements of external exposure rate. The analysis. though based on limited data, indicates that there is no statistical support for a seasonal effect on {sup 137}Cs uptake. The critical population group for cesium uptake is adult males. Within the 5-y monitoring period, all internal exposures to {sup 137}Cs mere less than 0.2 mSv y{sup -1}. Similarly, a persistent average cesium effective dose rate of 2 {mu}Sv y{sup -1} was determined for Majuro residents. 73 refs., 6 figs., 10 tabs.

Sun, L.C.; Clinton, J.H.; Kaplan, E. [Brookhaven National Lab., Upton, NY (United States)] [and others

1997-07-01T23:59:59.000Z

340

CHANGES IN 137 CS CONCENTRATIONS IN SOIL AND VEGETATION ON THE FLOODPLAIN OF THE SAVANNAH RIVER OVER A 30 YEAR PERIOD  

SciTech Connect

{sup 137}Cs released during 1954-1974 from nuclear production reactors on the Savannah River Site, a US Department of Energy nuclear materials production site in South Carolina, contaminated a portion of the Savannah River floodplain known as Creek Plantation. {sup 137}Cs activity concentrations have been measured in Creek Plantation since 1974 making it possible to calculate effective half-lives for {sup 137}Cs in soil and vegetation and assess the spatial distribution of contaminants on the floodplain. Activity concentrations in soil and vegetation were higher near the center of the floodplain than near the edges as a result of frequent inundation coupled with the presence of low areas that trapped contaminated sediments. {sup 137}Cs activity was highest near the soil surface, but depth related differences diminished with time as a likely result of downward diffusion or leaching. Activity concentrations in vegetation were significantly related to concentrations in soil. The plant to soil concentration ratio (dry weight) averaged 0.49 and exhibited a slight but significant tendency to decrease with time. The effective half-lives for {sup 137}Cs in shallow (0-7.6 cm) soil and in vegetation were 14.9 (95% CI = 12.5-17.3) years and 11.6 (95% CI = 9.1-14.1) years, respectively, and rates of {sup 137}Cs removal from shallow soil and vegetation did not differ significantly among sampling locations. Potential health risks on the Creek Plantation floodplain have declined more rapidly than expected on the basis of radioactive decay alone because of the relatively short effective half-life of {sup 137}Cs.

Paller, M.; Jannik, T.; Fledderman, P.

2007-12-12T23:59:59.000Z

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


341

?-decay studies of the francium isotopes 198Fr and 199Fr  

Science Journals Connector (OSTI)

Very neutron deficient francium isotopes have been produced in fusion evaporation reactions using 60Ni ions on 141Pr targets. The gas-filled recoil separator RITU was employed to collect the fusion products and to separate them from the scattered beam. The activities were implanted into a position sensitive silicon detector after passing through a gas-counter system. The isotopes were identified using spatial and time correlations between the implants and the decays. Two ?-particle activities, with E?=7613(15) keV and T1/2 = (15?5+12) ms and E?=7684(15) keV and T1/2 = (16?5+13) ms were identified in the new isotope 198Fr. In addition, the half-life and ?-particle energy of 199Fr were measured with improved precision. The measured decay properties deduced for 199Fr and 198Fr suggest that there is an onset of ground-state deformation at N=112 in the Fr isotopes.

J. Uusitalo; J. Sarén; S. Juutinen; M. Leino; S. Eeckhaudt; T. Grahn; P. T. Greenlees; U. Jakobsson; P. Jones; R. Julin; S. Ketelhut; A.-P. Leppänen; M. Nyman; J. Pakarinen; P. Rahkila; C. Scholey; A. Semchenkov; J. Sorri; A. Steer; M. Venhart

2013-06-10T23:59:59.000Z

342

Time-resolved infrared spectral photography studies of shock-induced chemistry in CS/sub 2/  

SciTech Connect

Experiments using time-resolved infrared spectral photography (TRISP) in the 6 to 8.5 ..mu..m range to study explosively driven shocks in liquid CS/sub 2/ are described. In this range, the temporal resolution of the TRISP system is <1 ns. We have shown that single-shot infrared absorption studies in shocked liquids are feasible with this technique; however, well-controlled planar shocks appear to be necessary for clear interpretation of dynamic spectral changes. 13 refs., 4 figs.

Renlund, A.M.; Sheffield, S.A.; Trott, W.M.

1985-01-01T23:59:59.000Z

343

Modeling of a CO chemical laser produced by supersonically mixing CS/S with O/sub 2/  

SciTech Connect

A computer model of a CO chemical laser produced by supersonic mixing of CS/S with O/sub 2/ is presented. The model has been shown to accurately predict measured gain coefficients of P/sub 7/(14) and P/sub 5/(18) lines, hence it was utilized for further parametric studies leading to a better understanding of the processes involved in laser operation. The model predicts high gain and high specific available energy in v = 1..-->..0 to v = 20..-->..19 transitions. A maximum gain was obtained for each of the parameters investigated. For certain operational conditions, complete population inversion was observed.

Tilleman, M.M.; Stricker, J.

1982-05-01T23:59:59.000Z

344

The Ground State of (CS)4 Is Different from that of (CO)4: An Experimental Test of a Computational Prediction by Negative Ion Photoelectron Spectroscopy  

SciTech Connect

Cyclobutane-1,2,3,4-tetrathione, (CS)4, has recently been calculated to have a singlet ground state, 1A1g, in which the highest b2g ? MO is doubly occupied and the lowest a2u ? MO is empty. Thus, (CS)4 is predicted to have a different ground state than its lighter congener, (CO)4, which has a triplet ground state, 3B1u, in which these two MOs are each singly occupied. Here we report the results of a negative ion photoelectron spectroscopy (NIPES) study of the radical anion (CS)4?-, designed to test the prediction that (CS)4 has a singlet ground state. The NIPE spectrum reveals that (CS)4 does, indeed, have a singlet ground state with electron affinity (EA) = 3.75 eV. The lowest triplet state is found to lie 0.31 eV higher in energy than the ground state, and the open-shell singlet is 0.14 eV higher in energy than the triplet state. Calculations at the (U)CCSD(T)/aug-cc-pVTZ//(U)B3LYP/6-311+G(2df) level support the spectral assignments, giving EA = 3.71 eV, EST = 0.44 eV. These calculated values are, respectively, 0.04 eV (0.9 kcal/mol) smaller, and 0.13 eV (3.0 kcal/mol) larger than the corresponding experimental values. In addition, RASPT2 calculations with various active spaces converge on a 1B1u-3B1u energy gap of 0.137 eV, in excellent agreement with the 0.14 eV energy difference obtained from the NIPE spectrum. Finally, calculations of the Franck-Condon factors for transitions from the ground state of (CS)4?- to the ground (1A1g) and two excited states (3B1u, 1B1u) of (CS)4 account for all of the major spectral peaks, and nicely reproduce vibrational structure observed in each electronic transition. The close correspondence between the calculated and the observed features in the NIPE spectrum of (CS)4?- provides unequivocal proof that (CS)4, unlike (CO)4, has a singlet ground state.

Zhang, Jian; Hrovat, David; Sun, Zhenrong; Bao, Xiaoguang; Borden, Weston; Wang, Xue B.

2013-08-22T23:59:59.000Z

345

Clarification of C-S relationships of marine black shales using stable isotopic composition of reduced sulfur  

SciTech Connect

Carbon-sulfur relationships are compared for the Miocene Monterey Formation (Santa Maria Basin, California) and the Upper Devonian New Albany Shale (Illinois Basin, Indiana). In both formations, C-S concentrations covary for samples with the lower to more intermediate organic carbon concentrations and become invariant at higher organic carbon concentrations. While the similarity of these relationships in Monterey and New Albany suggest sulfur diagenesis occurred in similar depositional environments, sulfur isotopic data clearly indicate differences in the depositional environments. In the Monterey, the most organic-rich laminated shales are characterized by isotopic enrichment of reduced S and low S ratios and indicate that sulfate reduction occurred under sulfate-limited conditions within the sediments. In the New Albany, organic-rich laminated shales exhibit isotopic depletion of reduced S coupled with low S[sub reduced]/C[sub org] and suggest sulfur diagenesis occurred under euxinic conditions. These data show that in the absence of sulfur isotopic data, misleading conclusions concerning depositional environments can be made when using C-S plots and the traditional interpretations that are associated with these types of plots.

Zaback, D.A.; Pratt, L.M. (Indiana Univ., Bloomington, IN (United States). Dept. of Geological Sciences)

1992-01-01T23:59:59.000Z

346

RESORCINOL-FORMALDEHYDE ADSORPTION OF CESIUM (Cs+) FROM HANFORD WASTE SOLUTIONS-PART I: BATCH EQUILIBRIUM STUDY  

SciTech Connect

Batch equilibrium measurements were conducted with a granular Resorcinol-Formaldehyde (RF) resin to determine the distribution coefficients (Kds) for cesium. In the tests, Hanford Site actual waste sample containing radioactive cesium and a pretreated waste sample that was spiked with non-radioactive cesium were used. Initial concentrations of non-radioactive cesium in the waste sample were varied to generate an equilibrium isotherm for cesium. Two additional tests were conducted using a liquid to solid phase ratio of 10 and a contact time of 120 hours. The measured distribution coefficient (Kd) for radioactive cesium (137Cs) was 948 mL/g; the Kd for non-radioactive cesium (133Cs) was 1039 mL/g. The Kd for non-radioactive cesium decreased from 1039 to 691 mL/g as the initial cesium concentration increased. Very little change of the Kd was observed at initial cesium concentrations above 64 mg/mL. The maximum sorption capacity for cesium on granular RF resin was 1.17 mmole/g dry resin. T his value was calculated from the fit of the equilibrium isotherm data to the Dubinin-Radushkevich equation. Previously, a total capacity of 2.84 mmole/g was calculated by Bibler and Wallace for air-dried RF resin.

HASSAN, NEGUIBM

2004-03-30T23:59:59.000Z

347

Energy conditions in f(R, Lm) gravity  

Science Journals Connector (OSTI)

In order to constrain f(R, Lm) gravity from theoretical aspects, its energy conditions are derived in this paper. These energy conditions given by us are quite general and can be degenerated to the well-known energy conditions in general relativity and f(R) theories of gravity with arbitrary coupling, non-minimal coupling and non-coupling between matter and geometry, respectively, as special cases. To exemplify how to use these energy conditions to restrict f(R, Lm) gravity, we consider a special model in the FRW cosmology and give some corresponding results by using astronomical observations.

Jun Wang; Kai Liao

2012-01-01T23:59:59.000Z

348

Form 1410 FR.14 Instructions Internal Service Providers: Rate Calculation  

E-Print Network (OSTI)

expenses, including expenditure types. Annualize the #12;Form 1410 FR.14 Instructions ISP Rate Calculation it exceeds 60 days of operating capital) or unplanned federal deficit into (B4). This amount will populate, by expenditure type, of t

349

Spectroscopy of the proton drip-line nucleus 203Fr  

Science Journals Connector (OSTI)

The nucleus 203Fr has been studied through ?-ray and electron spectroscopy, using the recoil-decay tagging technique. A 13/2+ state, with a half-life of 0.37(5) ?s, has been observed in 203Fr. Both the ?-decay branch and the internal de-excitation of the 1/2+ isomer in 203Fr have been studied. Furthermore, the corresponding 1/2+ state, with a half-life of 0.31(8) s, has been found in 199At. In addition, transitions feeding the 9/2? ground state of 203Fr have been identified. The observed level pattern suggests that the ground state is still spherical.

U. Jakobsson; S. Juutinen; J. Uusitalo; M. Leino; K. Auranen; T. Enqvist; P. T. Greenlees; K. Hauschild; P. Jones; R. Julin; S. Ketelhut; P. Kuusiniemi; M. Nyman; P. Peura; P. Rahkila; P. Ruotsalainen; J. Sarén; C. Scholey; J. Sorri

2013-05-17T23:59:59.000Z

350

? decay of 223Fr: Level structure of 219At  

Science Journals Connector (OSTI)

The ? decay of ? recoil collected sources of 223Fr was studied using a purified 227Ac source. Five ? groups were observed whereas previously only one was reported. Multipolarities and energies of the ? transitions between the 219At levels were observed for the first time which allowed spins and parities to be assigned to the levels. The systematics of the levels of 215At, 217At, and 219At show a strong similarity, but with decreasing level energies with increasing mass. The levels in 219At are interpreted in terms of the shell model configurations ?(h9/2)3?(g9/2)-2 and ?(h9/2)2f7/2?(g9/2)-2. Although there is no evidence of parity doublets in 215At, 217At, and 219At, some of their configurations are shown to be very closely related to the quadrupole-octupole deformed ground states of 219Fr, 221Fr, and 223Fr, respectively.

C. F. Liang; P. Paris; R. K. Sheline

2001-08-21T23:59:59.000Z

351

Document Nr. AE-FR-VHAMP_v1.0  

E-Print Network (OSTI)

Document Nr. AE-FR-VHAMP_v1.0 Date: 19 September, 2013 Doc. Title: VHAMP ­ Vertical and Horizontal and Heiner Körnich #12;Document Nr. AE-FR-VHAMP_v1.0 Date: 19 September, 2013 Doc. Title: VHAMP ­ Vertical conclusion from the study are 1. Along track integration of 85-100 km is needed to meet the mission

Marseille, Gert-Jan

352

Evidence for the onset of reflection asymmetry in Fr216  

Science Journals Connector (OSTI)

States in doubly odd Fr216 have been studied using in-beam ?, ?, and e- spectroscopy techniques through the Pb208(11B3n) fusion-evaporation reaction. Fr216 shows a band structure with interleaved states of alternating parities connected by enhanced B(E1) transitions. It represents the lowest-mass corner of the region (Z?87,N?129) in which this phenomenon is observed.

M. E. Debray; J. Davidson; M. Davidson; A. J. Kreiner; D. Hojman; D. Santos; K. Ahn; D. B. Fossan; Y. Liang; R. Ma; E. S. Paul; W. F. Piel; Jr.; N. Xu

1990-05-01T23:59:59.000Z

353

Coherent neutrino-nucleus scattering detection with a CsI[Na] scintillator at the SNS spallation source  

E-Print Network (OSTI)

We study the possibility of using CsI[Na] scintillators as an advantageous target for the detection of coherent elastic neutrino-nucleus scattering (CENNS), using the neutrino emissions from the SNS spallation source at Oak Ridge National Laboratory. The response of this material to low-energy nuclear recoils like those expected from this process is characterized. Backgrounds are studied using a 2 kg low-background prototype crystal in a dedicated radiation shield. The conclusion is that a planned 14 kg detector should measure approximately 550 CENNS events per year above a demonstrated $\\sim7$ keVnr low-energy threshold, with a signal-to-background ratio sufficient for a first measurement of the CENNS cross-section. The cross-section for the $^{208}$Pb($\

J. I. Collar; N. E. Fields; E. Fuller; M. Hai; T. W. Hossbach; J. L. Orrell; G. Perumpilly; B. Scholz

2014-08-20T23:59:59.000Z

354

Characterization and Properties of Novel Infrared Nonlinear Optical Crystal CsGe(BrxCl1?x)3  

Science Journals Connector (OSTI)

Several useful crystals, such as KH2PO4 (KDP), LiNbO3, KTiOPO4 (KTP), ?-BaB2O4 (BBO), and LiB3O5 (LBO),(1) have been discovered and successfully utilized for converting laser frequencies into visible and ultraviolet radiation, but they are not transparent in the mid-infrared region. ... After the precipitate was removed, CsBr (99.9%) was added, and the temperature was raised to the boiling point; the mixture was then naturally cooled to room temperature. ... Peak-splitting caused by the structural noncentrosymmetry, occurs mainly from 2? = 15° to 35°. Figure 4 plots results that reveal that the substitution-related diffraction peaks shifted gradually with value of x. ...

Zhi-Guang Lin; Li-Chuan Tang; Chang-Pin Chou

2008-03-05T23:59:59.000Z

355

Radiochemical procedures for analysis of Pu, Am, Cs and Sr in water, soil, sediments and biota samples  

SciTech Connect

The Environmental Radioactivity Analysis Laboratory (ERAL) was established as an analytical facility. The primary function of ERAL is to provide fast and accurate radiological data of environmental samples. Over the years, many radiochemical procedures have been developed by the staffs of ERAL. As result, we have found that our procedures exist in many different formats and in many different notebooks, documents and files. Therefore, in order to provide for more complete and orderly documentation of the radiochemical procedures that are being used by ERAL, we have decided to standardize the format and compile them into a series of reports. This first report covers procedures we have developed and are using for the radiochemical analysis of Pu, Am, Cs, and Sr in various matrices. Additional analytical procedures and/or revisions for other elements will be reported as they become available through continuation of these compilation efforts.

Wong, K.M.; Jokela, T.A.; Noshkin, V.E.

1994-02-01T23:59:59.000Z

356

Model simulations on the long-term dispersal of 137Cs released into the Pacific Ocean off Fukushima  

Science Journals Connector (OSTI)

A sequence of global ocean circulation models, with horizontal mesh sizes of 0.5°, 0.25° and 0.1°, are used to estimate the long-term dispersion by ocean currents and mesoscale eddies of a slowly decaying tracer (half-life of 30 years, comparable to that of 137Cs) from the local waters off the Fukushima Dai-ichi Nuclear Power Plants. The tracer was continuously injected into the coastal waters over some weeks; its subsequent spreading and dilution in the Pacific Ocean was then simulated for 10 years. The simulations do not include any data assimilation, and thus, do not account for the actual state of the local ocean currents during the release of highly contaminated water from the damaged plants in March–April 2011. An ensemble differing in initial current distributions illustrates their importance for the tracer patterns evolving during the first months, but suggests a minor relevance for the large-scale tracer distributions after 2–3 years. By then the tracer cloud has penetrated to depths of more than 400 m, spanning the western and central North Pacific between 25°N and 55°N, leading to a rapid dilution of concentrations. The rate of dilution declines in the following years, while the main tracer patch propagates eastward across the Pacific Ocean, reaching the coastal waters of North America after about 5–6 years. Tentatively assuming a value of 10 PBq for the net 137Cs input during the first weeks after the Fukushima incident, the simulation suggests a rapid dilution of peak radioactivity values to about 10 Bq m?3 during the first two years, followed by a gradual decline to 1–2 Bq m?3 over the next 4–7 years. The total peak radioactivity levels would then still be about twice the pre-Fukushima values.

Erik Behrens; Franziska U Schwarzkopf; Joke F Lübbecke; Claus W Böning

2012-01-01T23:59:59.000Z

357

Ra223 levels fed in the Fr223 ? decay  

Science Journals Connector (OSTI)

The Fr223 ? decay was reinvestigated using high-resolution single ? spectrometry as well as ?-? coincidence techniques. For single ?-spectra measurements, radiochemically pure Fr223 sources were obtained by chromatographic separation from a 75 MBq activity Ac227 parent source and continuously purified of Ra223 and daughters. The analysis of the ? spectra of 30 sources showed the existence of 131 ? lines, of which 87 are reported for the first time in the Fr223 ? decay although many of them are observed following the Th227 ? decay. The Fr223 half-life was remeasured and found to be T1/2=22.00±0.07 min. ?-?-t coincidence measurements were also carried out with Fr223 purified sources. The Ra223 level scheme was built on the basis of our ? data, as well as Th227 ?-decay data. Among the 32 excited Ra223 levels, of which 22 were also known from Th227 ? decay, 13 are newly reported from Fr223 ? decay. Low energy levels (E<400 keV) may be classified as parity doublet bands according to the predictions of the reflection asymmetric rotor model. Above a 700 keV gap, a coexistence of symmetric and asymmetric shapes including both static and dynamic octupole correlations is suggested.

A. Abdul-Hadi; V. Barci; B. Weiss; H. Maria; G. Ardisson; M. Hussonnois; O. Constantinescu

1993-01-01T23:59:59.000Z

358

Kursplan fr Klimatsmart arkitektur och urban design  

E-Print Network (OSTI)

inverkan på vind, solstrålning ochq temperaturförhållanden; visa kunskap om faktorer som påverkar termisk behovet av uppvärmning och kylning och möjliggöra maximal användning av #12;förnyelsebar energi; kunna till frågor omq klimat, energi och stadsutformning; visa insikt om hur bebyggelsens utformning kan

359

arXiv:1204.1240v1[cs.IT]5Apr2012 1 Optimal Save-Then-Transmit Protocol for Energy  

E-Print Network (OSTI)

arXiv:1204.1240v1[cs.IT]5Apr2012 1 Optimal Save-Then-Transmit Protocol for Energy Harvesting a fraction of time (dubbed the save-ratio) is devoted exclusively to energy harvesting, with the remaining to validate our proposed study. Index Terms Energy harvesting, save-then-transmit protocol, outage

Lim, Teng Joon

360

METHOD FOR SIMULTANEOUS 90SR AND 137CS IN-VIVO MEASUREMENTS OF SMALL ANIMALS AND OTHER ENVIRONMENTAL MEDIA DEVELOPED FOR THE CONDITIONS OF THE CHERNOBYL EXCLUSION ZONE  

SciTech Connect

To perform in vivo simultaneous measurements of the {sup 90}Sr and {sup 137}Cs content in the bodies of animals living in the Chernobyl Exclusion Zone (ChEZ), an appropriate method and equipment were developed and installed in a mobile gamma beta spectrometry laboratory. This technique was designed for animals of relatively small sizes (up to 50 g). The {sup 90}Sr content is measured by a beta spectrometer with a 0.1 mm thick scintillation plastic detector. The spectrum processing takes into account the fact that the measured object is 'thick-layered' and contains a comparable quantity of {sup 137}Cs, which is a characteristic condition of the ChEZ. The {sup 137}Cs content is measured by a NaI scintillation detector that is part of the combined gamma beta spectrometry system. For environmental research performed in the ChEZ, the advantages of this method and equipment (rapid measurements, capability to measure live animals directly in their habitat, and the capability of simultaneous {sup 90}Sr and {sup 137}Cs measurements) far outweigh the existing limitations (considerations must be made for background radiation and the animal size, skeletal shape and body mass). The accuracy of these in vivo measurements is shown to be consistent with standard spectrometric and radiochemical methods. Apart from the in vivo measurements, the proposed methodology, after a very simple upgrade that is also described in the article, works even more accurately with samples of other media, such as soil and plants.

Farfan, E.; Jannik, T.

2011-10-01T23:59:59.000Z

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


361

CS 4700 Programming Languages Review Sheet For specific examples of how the material may be tested, see the homework and first two  

E-Print Network (OSTI)

CS 4700 Programming Languages Review Sheet For specific examples of how the material may be tested the grammar 4.5 Elimination of left recursion, left factoring 4.5 syntax diagram 5 Basic Semantics 5 and Variation on WHILE 7.4 The GOTO Controversy 7.5 Exception Handling 7.6 Binding times: language definition

Allan, Vicki H.

362

Matlab's Loss is Nobody's Gain Created Aug. 1998, revised July 31, 2004 http://www.cs.berkeley.edu/~wkahan/MxMulEps.pdf Page 1/36  

E-Print Network (OSTI)

Matlab's Loss is Nobody's Gain Created Aug. 1998, revised July 31, 2004 http://www.cs.berkeley.edu/~wkahan/MxMulEps.pdf Page 1/36 Matlab's Loss is Nobody's Gain Prof. W. Kahan Mathematics Dept. & Elect. Eng. & Computer Sci. Dept. University of California Berkeley CA 94720-1776 Abstract: Matlab has become the software package

California at Berkeley, University of

363

arXiv:1004.0395v2[cs.NI]6Apr2010 Estimating Self-Sustainability in Peer-to-Peer Swarming Systems  

E-Print Network (OSTI)

arXiv:1004.0395v2[cs.NI]6Apr2010 Estimating Self-Sustainability in Peer-to-Peer Swarming Systems propose a new metric, namely swarm self-sustainability. A swarm is referred to as self-sustaining if all its blocks are collectively held by peers; the self-sustainability of a swarm is the fraction of time

Massachusetts at Amherst, University of

364

1144 IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. 15, NO. 10, OCTOBER 2007 Wafer-Level Modular Testing of Core-Based SoCs  

E-Print Network (OSTI)

1174. An earlier version of this paper was published in the Proceedings of the IEEE International TestCs. To reduce packaging cost and the test cost for pack- aged chips, wafer-level testing (wafer sort) is used]­[10]; these methods are mostly aimed at reducing the test time for package test, where all the scan-based patterns

Chakrabarty, Krishnendu

365

CS 570: Advanced Computer Architecture To learn the science and art of selecting and interconnecting hardware components to create a computer that  

E-Print Network (OSTI)

CS 570: Advanced Computer Architecture Objectives To learn the science and art of selecting. Course Materials Text John L. Hennessy, David A. Patterson. Computer Architecture: A Quantitative-13-185644-8. Online Resources Computer Architecture Web site. Syllabus Introduction Computer platforms and models

Heller, Barbara

366

CS120 Fall 2014 --Logisim and Arduino In this lab, we'll use Logisim to build a few circuits. Build each of these yourself, and then  

E-Print Network (OSTI)

CS120 Fall 2014 -- Logisim and Arduino In this lab, we'll use Logisim to build a few circuits to abstract their operation, and think at a higher level. #12;Part 2 of the Lab: Arduino time! Plug in the Arduino to a lab machine using a USB cable, and open the Arduino development environment. If you've got

Madden, Patrick H.

367

CS 551: Operating Systems Design and Implementation This course introduces the students to the fundamental principles of operating systems design, and gives them  

E-Print Network (OSTI)

CS 551: Operating Systems Design and Implementation Objectives This course introduces the students to the fundamental principles of operating systems design, and gives them hands-on experience with operating systems installation, design and implementation. The students apply what they learned about operating systems design

Heller, Barbara

368

HCIL Technical Report No. 99-03 (June 1999); http://www.cs.umd.edu/hcil Visualizing Digital Library Search Results with  

E-Print Network (OSTI)

HCIL Technical Report No. 99-03 (June 1999); http://www.cs.umd.edu/hcil Visualizing Digital Library variables (for example, language or name of journal). The labels on such axes are cues to searchers and may (MeSH), the Universal Medical Language System (UMLS) (Pratt, 1997), and the ACM's Computing Reviews

Golbeck, Jennifer

369

Shell model level structure of 216Fr  

Science Journals Connector (OSTI)

Sources of 220Ac in secular equilibrium with 221Pa were produced using the reaction 209Bi(18O,3n)224Pa. The alpha decay of 220Ac and coincident gamma and electron spectra were used to study the level structure of 216Fr. The levels in 216Fr can be interpreted in terms of the ?(h9/2)9/25?(g9/2)9/23, ?(h9/2)04(f7/2)7/2?(g9/2)9/23, and ?(h9/2)9/25?(g9/2)02(i11/2)11/2 shell model configurations. The alpha decay hindrance factors of the ground state to ground state transitions in the sequence 224Pa?220Ac?216Fr?212At suggest the collapse of quadrupole-octupole Nilsson orbitals into the more degenerate shell model orbitals. The sequence of hindrance factors in this odd chain are mirrored in the corresponding odd proton and odd neutron sequences beginning with 223Pa and 223Th, respectively.

R. K. Sheline; C. F. Liang; P. Paris; A. Gizon

1997-03-01T23:59:59.000Z

370

Utilization of Cs{sup 137} to generate a radiation barrier for weapons grade plutonium immobilized in borosilicate glass canisters. Revision 1  

SciTech Connect

One of the ways recommended by a recent National Academy of Sciences study to dispose of excess weapons-grade plutonium is to encapsulate the plutonium in a glass in combination with high-level radioactive wastes (HLW) to generate an intense radiation dose rate field. The objective is to render the plutonium as difficult to access as the plutonium contained in existing US commercial spent light-water reactor (LWR) fuel until it can be disposed of in a permanent geological repository. A radiation dose rate from a sealed canister of 1,000 rem/h (10 Sv/h) at 1 meter for at least 30 years after fabrication was assumed in this paper to be a radiation dose comparable to spent LWR fuel. This can be achieved by encapsulating the plutonium in a borosilicate glass with an adequate amount of a single fission product in the HLWS, namely radioactive Cs{sup 137}. One hundred thousand curies of Cs{sup 137} will generate a dose rate of 1,000 rem/h (10 Sv/h) at 1 meter for at least 30 years when imbedded into canisters of the size proposed for the Savannah River Site`s vitrified high-level wastes. The United States has a current inventory of 54 MCi of CS{sup 137} that has been separated from defense HLWs and is in sealed capsules. This single curie inventory is sufficient to spike 50 metric tons of excess weapons-grade plutonium if plutonium can be loaded at 5.5 wt% in glass, or 540 canisters. Additional CS{sup 137} inventories exist in the United States` HLWs from past reprocessing operations, should additional curies be required. Using only one fission product, CS{sup 137}, rather than the multiple chemical elements and compounds in HLWs to generate a high radiation dose rate from a glass canister greatly simplifies the processing engineering retirement for encapsulating plutonium in a borosilicate glass.

Jardine, L.J.; Armantrout, G.A.; Collins, L.F.

1995-01-01T23:59:59.000Z

371

Confirmation of 10 CFR Part 830, nuclear safety rule (66 FR 19717), Fed Reg  

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

Confirmation of 10 CFR Part 830, nuclear safety rule (66 FR 19717), Confirmation of 10 CFR Part 830, nuclear safety rule (66 FR 19717), Fed Reg 4/17/01 Confirmation of 10 CFR Part 830, nuclear safety rule (66 FR 19717), Fed Reg 4/17/01 In accordance with the memorandum of January 20, 2001, from the Assistant to the President and Chief of Staff, entitled ''Regulatory Review Plan,'' published in the Federal Register on January 24, 2001 (66 FR 7702), DOE temporarily delayed for 60 days (66 FR 8746, February 2, 2001) the effective date of the rule entitled ''Nuclear Safety Management'' published in the Federal Register on January 10, 2001 (66 FR 1810). DOE has now completed its review of that regulation, and does not intend to initiate any further rulemaking action to modify its provisions and confirms the effective date of April 10,

372

Experimental and theoretical study of the nuclear structure of Fr223  

Science Journals Connector (OSTI)

The experimental level structure of Fr223 has been studied using the 1.4% alpha decay of 21.8 yr Ac227 and subsequent gamma rays to extend the level scheme recently observed following the ?- decay of Rn223. The level structure of Fr223 was also studied theoretically by using the quasiparticle model of Soloviev with octupole degrees of freedom. Both experimentally and theoretically there is strong evidence that Fr223 is reflection asymmetric. The theoretical study of microscopic structure of several of the positive-parity bands also indicates the presence of important Nilsson configurations arising from the shell below. The comparison of the level structures of Fr223, Fr221, and Fr219 tends to elaborate the mechanism by which the octupole-modified Nilsson orbitals collapse into the more degenerate shell model states as the mass number decreases.

R. K. Sheline; C. F. Liang; P. Paris; J. Kvasil; D. Nosek

1995-04-01T23:59:59.000Z

373

hal.archives-ouvertes.fr Hyperresonance Unifying Theory and the resulting Law  

E-Print Network (OSTI)

hal.archives-ouvertes.fr 1 Hyperresonance Unifying Theory and the resulting Law HRH Mensur. Hyperresonance Unifying Theory (HUT) is herein conceived based on theoretical and experimental geophysics

Paris-Sud XI, Université de

374

Alpha-decay properties of Fr205,206,207,208: Identification of Frm206  

Science Journals Connector (OSTI)

Alpha-particle and ?-ray spectral measurements were made for Fr205-208. A new ? emitter (T12=0.7±0.1 sec and E?=6.930±0.005 MeV) was observed and identified with the decay of a previously unknown isomer in Fr206. From the ? particle and ? ray intensities, ? decay branching ratios were deduced for Fr205-208 utilizing available information concerning the nuclides' (electron capture + positron) decay properties. Reduced widths were calculated and compared with those of neighboring nuclei.RADIOACTIVITY Fr205,206,207,208, measured E?, I?, E?, I?; deduced ?-branching ratios; identified Frm206. Mass separation.

B. G. Ritchie; K. S. Toth; H. K. Carter; R. L. Mlekodaj; E. H. Spejewski

1981-05-01T23:59:59.000Z

375

http://ufr-sciences-cb.univ-pau.fr/live/licence-informatique DIRECTEUR DES TUDES  

E-Print Network (OSTI)

NAVARRO - Tel : 05 59 57 44 54 ­ xabi.navarro@univ-pau.fr SCOLARIT� DE L'UFR SCIENCES ET TECHNIQUES C�TE

Dambrine, Marc

376

Crystal structure refinement for Cs/sub 3/NpO/sub 2/Cl/sub 4/  

SciTech Connect

Diffractometry has been used with monochromatic Mo K/sub /alpha// radiation, /Theta//2/Theta/ method, full-matrix least-squares refinement in the anisotropic approximation, spherical single crystal 0.21 mm in diameter, and R factor on all 1570 reflections 0.028 in a refinement of the crystal structure for Cs/sub 3/NpO/sub 2/Cl/sub 4/. The compound is monoclinic: a = 1.5435 (6), b = 1.2796 (5), c = 0.7306 (3) nm, /gamma/ = 117.23 (5)/degree/, space group B2/b. Bond lengths: Np-20 0.1828 (5), Np-Cl/sub 1/ 0.2759 (3), Np-Cl/sub 2/ 0.2758(3). The Np-O bond characteristics have been compared for NpO/sub 2//sup 2+/ and NpO/sub 2//sup +/. It is concluded that there is marked reduction in the interaction between the equatorial and axial bonds in NpO/sup +//sub 2/ by comparison with NpO/sub 2//sup 2+/.

Lychev, A.A.; Mashirov, L.G; Smolin, Yu.I.; Shepelev, Yu.F.

1989-01-01T23:59:59.000Z

377

Time dependence of the {sup 137}Cs resuspension factor on the Romanian territory after the Chernobyl accident  

SciTech Connect

On the basis of the radioactivity levels in aerosol and atmospheric deposition samples due to the Chernobyl accident, the resuspension factor of {sup 137}Cs as a four-parameter function has been inferred. The standard procedure to derive the dependence of resuspension on time assumes that the initial deposit is instantaneous. A simple method assuming a constant deposition rate over a fixed period has been proposed. Also, based on existing experimental data, an attempt was made to consider a realistic time dependence of the deposition rate to cope with the particular case of the Chernobyl accident. The differences between the two models are outlined. The Chernobyl direct deposit has been assumed to be the deposit measured between 30 April and 30 June 1986. The calculated values of the resuspension factor are consistent with the IAEA`s recommended model and depend on the rainfall that occurred in June 1986 and the site-specific disturbance conditions during the first 100 d following 1 July 1986 and only on artificial disturbance by humans and vehicles after that. 16 refs., 5 figs., 3 tabs.

Mihaila, B. [Institute of Environmental Research and Engineering, Bucharest (Romania); Cuculeanu, V. [National Institute of Meteorology and Hydrology, Bucharest (Romania)

1994-08-01T23:59:59.000Z

378

Electron nuclear double resonance study of photostimulated luminescence active centers in CsBr:Eu{sup 2+} medical imaging plates  

SciTech Connect

CsBr:Eu{sup 2+} needle image plates exhibit an electron-paramagnetic-resonance (EPR) spectrum at room temperature (RT), whose intensity is correlated with the photostimulated luminescence sensitivity of the plate. This EPR spectrum shows a strong temperature dependence: At RT it is owing to a single Eu{sup 2+} (S =7/2) center with axial symmetry, whereas at T<35 K the spectra can only be explained when two distinct centers are assumed to be present, a minority axial center and a majority center with nearly extremely rhombic symmetry. In this paper these low-temperature centers are studied with electron nuclear double resonance (ENDOR) spectroscopy, which reveals the presence of {sup 1}H nuclei close to the central Eu{sup 2+} ions in the centers. Analysis of the angular dependence of the ENDOR spectra allows to propose models for these centers, providing an explanation for the observed difference in intensity between the spectral components and for their temperature dependence.

Vrielinck, H.; Loncke, F.; Matthys, P.; Callens, F. [Department of Solid State Sciences, Ghent University, Krijgslaan 281-S1, B-9000 Gent (Belgium); Tahon, J.-P.; Leblans, P. [Agfa HealthCare NV, Septestraat 27, B-2640 Mortsel (Belgium)

2011-02-01T23:59:59.000Z

379

Intervalence Charge Transfer luminescence: The anomalous luminescence of Cerium-doped Cs2LiLuCl6 elpasolite  

E-Print Network (OSTI)

The existence of intervalence charge transfer (IVCT) luminescence is reported. It is shown that the so called anomalous luminescence of Ce-doped elpasolite Cs2LiLuCl6, which is characterized mainly by a very large Stokes shift and a very large band width, corresponds to an IVCT emission in Ce3+-Ce4+ pairs, from the 5deg orbital of Ce3+ to 4f orbitals of Ce4+. Its Stokes shift is the sum of the large reorganization energies of the Ce4+ and Ce3+ centers formed after the fixed-nuclei electron transfer and it is equal to the energy of the IVCT absorption commonly found in mixed-valence compounds, which is predicted to exist in this material and to be slightly larger than 10000 cm-1. The large band width is the consequence of the large offset between the minima of the Ce3+-Ce4+ and Ce4+-Ce3+ pairs along the electron transfer reaction coordinate. This offset is approximately 2*sqrt(3) times the difference of Ce-Cl equilibrium distances in the Ce3+ and Ce4+ centers. It is shown that the energies of the peaks and the...

Seijo, Luis

2014-01-01T23:59:59.000Z

380

A9RB1B5.tmp  

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

(d) The conversion from physical units to Btu is calculated using a subset of conversion factors used in the calculations of gross energy consumption in EIA's Monthly Energy...

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


381

A9RB1B5.tmp  

Annual Energy Outlook 2012 (EIA)

in 2015 comes from Annex VI to the International Convention for the Prevention of Pollution from Ships (MARPOL Annex VI), which is an international agreement that generally...

382

Kananaskis Field Station -RB Miller Emergency Instructions  

E-Print Network (OSTI)

Security at 403-220-5333 from a safe location Hazardous Materials Spill Only attempt to clean up a spill assailant, run away from the subject Hide - if you cannot flee, or do not know the location of the shooter, hide in a locked or barricaded room and turn out the lights Fight ­ if confronted by the shooter

de Leon, Alex R.

383

arXiv:0804.3902v1[cs.DS]24Apr2008 Minimum-energy broadcast in random-grid ad-hoc  

E-Print Network (OSTI)

arXiv:0804.3902v1[cs.DS]24Apr2008 Minimum-energy broadcast in random-grid ad-hoc networks ranges to the nodes of an ad-hoc network in order to guarantee a directed spanning tree from a given in ad-hoc networks. In ad-hoc net- works, nodes are able to vary their transmission ranges in order

Rossi, Gianluca

384

CS120 Lab 7 --Arduino and LC3 The goal for this lab is to get everyone up to speed using both the LC3 simulator and the  

E-Print Network (OSTI)

CS120 Lab 7 -- Arduino and LC3 The goal for this lab is to get everyone up to speed using both the LC3 simulator and the Arduino, and to make connections between C-language control structures (if ELSEPART AND R1, R1, #0 ADD R1, R1, #4 WHATEVER HALT .END Arduino code LC3 simulator code Type both code

Madden, Patrick H.

385

Carbon-Enhanced Metal-Poor Stars. Osmium and Iridium Abundances in the Neutron-Capture-Enhanced Subgiants CS31062-050 and LP625-44  

E-Print Network (OSTI)

We have investigated the abundances of heavy neutron-capture elements, including osmium (Os) and iridium (Ir), in the two Carbon-Enhanced Metal-Poor (CEMP) subgiants CS31062-050 and LP625-44. CS31062-050 is known to be a so-called CEMP-r/s star, which exhibits large excesses of s-process elements such as barium (Ba) and lead (Pb), as well as a significant enhancement of europium (Eu) that cannot be explained by conventional s-process production in Asymptotic Giant Branch star models. Our analysis of the high-resolution spectrum for this object has determined, for the first time, the abundances of Ir and Os, elements in the third peak of the r-process nucleosynthesis. They also exhibit significant excesses relative to the predictions of standard s-process calculations. These two elements are not detected in a similar-quality spectrum of LP625-44; the derived upper limits on their abundances are lower than the abundances in CS31062-050. We compare the observed abundance patterns of neutron-capture elements, including Os and Ir, in these two stars with recent model calculations of the s-process, and discuss possible interpretations.

Wako Aoki; Sara Bisterzo; Roberto Gallino; Timothy C. Beers; John E. Norris; Sean G. Ryan; Stelios Tsangarides

2006-09-06T23:59:59.000Z

386

FREQUENCY DISTRIBUTIONS OF 90SR AND 137CS CONCENTRATIONS IN AN ECOSYSTEM OF THE 'RED FOREST' AREA IN THE CHERNOBYL EXCLUSION ZONE  

SciTech Connect

In the most highly contaminated region of the Chernobyl Exclusion Zone: the 'Red Forest' site, the accumulation of the major dose-affecting radionuclides ({sup 90}Sr and {sup 137}Cs) within the components of an ecological system encompassing 3,000 m{sup 2} were characterized. The sampled components included soils (top 0-10 cm depth), Molina caerulea (blue moor grass), Camponotus vagus (carpenter ants) and Pelobates fuscus (spade-footed toad). In a comparison among the components of this ecosystem, the {sup 90}Sr and {sup 137}Cs concentrations measured in 40 separate grids exhibited significant differences, while the frequency distribution of the values were close to a logarithmically normal leptokurtic distribution with a significant right-side skew. While it is important to identify localized areas of high contamination or 'hot spots,' including these values in the arithmetic mean may overestimate the exposure risk. In component sample sets that exhibited logarithmically normal distribution, the geometrical mean more accurately characterizes a site. Ideally, risk assessment is most confidently achieved when the arithmetic and geometrical means are most similar, meaning the distribution approaches normal. Through bioaccumulation, the highest concentrations of {sup 90}Sr and {sup 137}Cs were measured in the blue moor grass and spade-footed toad. These components also possessed distribution parameters that shifted toward a normal distribution.

Farfan, E.; Jannik, T.; Caldwell, E.

2011-10-01T23:59:59.000Z

387

Caroline.Doucoure@ird.fr Prsentation de  

E-Print Network (OSTI)

14/09/2012 1 Caroline.Doucoure@ird.fr Présentation de à l'Assemblée Générale de l'IRD France-Nord 18/09/2012 PrésentationNumériSud à l'AG de l'IRD France-Nord 18/09/2012 Le projet de campus numérique étudiants du Sud présents en Ile-de-France et du Nord concernés par la recherche pour le développement et

388

Dark Energy Dipole in f(R T) Cosmological Model  

E-Print Network (OSTI)

Recent astronomical observations show that the universe may be anisotropic on large scales. The Union2 SnIa data hint that the universe has a preferred direction. If such a cosmological privileged axis indeed exists, one has to consider an anisotropic expanding Universe, instead of the isotropic cosmological model. In this paper, we present a detailed analysis of the cosmic dipoles in f(R; T) Cosmological Model. the maximum anisotropic deviation direction is (l, b) = (137,23) or equivalently (l, b) = (317,-23). Our numerical results show that, using Union2 data, the anisotropic f(R, T) model provides a significantly better fit than the isotropic f(R, T), CPL, and {\\Lambda}CDM models.

Salehi, Amin

2015-01-01T23:59:59.000Z

389

Laser resonance photoionization spectroscopy of Rydberg levels in Fr  

Science Journals Connector (OSTI)

We investigated for the first time the high-lying Rydberg levels in the rare radioactive element francium (Fr). The investigations were conducted by the highly sensitive laser resonance atomic photoionization technique with Fr atoms produced at a rate of about 103 atoms/s in a hot cavity. We measured the wave numbers of the 7p2P3/2?nd2D (n=22–33) and 7p2P3/2?ns2S (n=23, 25–27,29–31) transitions and found the binding energy of the 7p2P3/2 state to be T=-18 924.8(3) cm-1, which made it possible to establish accurately the ionization potential of Fr.

S. V. Andreev; V. S. Letokhov; V. I. Mishin

1987-09-21T23:59:59.000Z

390

E-Print Network 3.0 - attachment level recordings Sample Search...  

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

Bernd - Institut fr Informatik, Technische Universitt Mnchen Collection: Computer Technologies and Information Sciences 49 ARD-CS-FRM-014 ApplicationforCrossInstitutiona...

391

ISSN0249-0803ISRNINRIA/RT--0439--FR+ENG Project-Teams PANAMA and  

E-Print Network (OSTI)

ISSN0249-0803ISRNINRIA/RT--0439--FR+ENG TECHNICAL REPORT N° 0439 July 2013 Project-Teams PANAMA , Frédéric Bimbot § Project-Teams PANAMA and TEXMEX Technical Report n° 0439 -- version 2¶ -- initial version

Paris-Sud XI, Université de

392

MEASURING THE ULTIMATE HALO MASS OF GALAXY CLUSTERS: REDSHIFTS AND MASS PROFILES FROM THE HECTOSPEC CLUSTER SURVEY (HeCS)  

SciTech Connect

The infall regions of galaxy clusters represent the largest gravitationally bound structures in a {Lambda}CDM universe. Measuring cluster mass profiles into the infall regions provides an estimate of the ultimate mass of these halos. We use the caustic technique to measure cluster mass profiles from galaxy redshifts obtained with the Hectospec Cluster Survey (HeCS), an extensive spectroscopic survey of galaxy clusters with MMT/Hectospec. We survey 58 clusters selected by X-ray flux at 0.1 < z < 0.3. The survey includes 22,680 unique MMT/Hectospec redshifts for individual galaxies; 10,145 of these galaxies are cluster members. For each cluster, we acquired high signal-to-noise spectra for {approx}200 cluster members and a comparable number of foreground/background galaxies. The cluster members trace out infall patterns around the clusters. The members define a very narrow red sequence. We demonstrate that the determination of velocity dispersion is insensitive to the inclusion of bluer members (a small fraction of the cluster population). We apply the caustic technique to define membership and estimate the mass profiles to large radii. The ultimate halo mass of clusters (the mass that remains bound in the far future of a {Lambda}CDM universe) is on average (1.99 {+-} 0.11)M{sub 200}, a new observational cosmological test in essential agreement with simulations. Summed profiles binned in M{sub 200} and in L{sub X} demonstrate that the predicted Navarro-Frenk-White form of the density profile is a remarkably good representation of the data in agreement with weak lensing results extending to large radius. The concentration of these summed profiles is also consistent with theoretical predictions.

Rines, Kenneth [Department of Physics and Astronomy, Western Washington University, Bellingham, WA 98225 (United States)] [Department of Physics and Astronomy, Western Washington University, Bellingham, WA 98225 (United States); Geller, Margaret J.; Kurtz, Michael J. [Smithsonian Astrophysical Observatory, 60 Garden Street, MS 20, Cambridge, MA 02138 (United States)] [Smithsonian Astrophysical Observatory, 60 Garden Street, MS 20, Cambridge, MA 02138 (United States); Diaferio, Antonaldo, E-mail: kenneth.rines@wwu.edu, E-mail: diaferio@ph.unito.it [Dipartimento di Fisica, Universita di Torino, Torino (Italy)] [Dipartimento di Fisica, Universita di Torino, Torino (Italy)

2013-04-10T23:59:59.000Z

393

Possible shears bands in At204 and Fr206, and identification of excited states in Fr205,207  

Science Journals Connector (OSTI)

Neutron-deficient astatine and francium nuclei were produced in the reaction 30Si+181Ta?211Fr* at 152 MeV. The evaporation residues from this very fissile system were selected with the HERCULES-II detector system and residue-gated ? rays were measured with Gammasphere. Excited states were observed for the first time in Fr205,207, as well as sequences of low-energy transitions between high-spin states in At204 and Fr206. These latter structures have properties similar to those associated with magnetic rotation (shears bands) in lead nuclei. Comparisons with established shears bands are presented and prospects for the magnetic-rotation phenomenon near the predicted N=120 “magic” number are explored.

D. J. Hartley; E. P. Seyfried; W. Reviol; D. G. Sarantites; C. J. Chiara; O. L. Pechenaya; K. Hauschild; A. Lopez-Martens; M. P. Carpenter; R. V. F. Janssens; D. Seweryniak; S. Zhu

2008-11-25T23:59:59.000Z

394

Energy Density Inhomogeneities with Polynomial $f(R)$ Cosmology  

E-Print Network (OSTI)

In this paper, we study the effects of polynomial $f(R)$ model on the stability of homogeneous energy density in self-gravitating spherical stellar object. For this purpose, we construct couple of evolution equations which relate the Weyl tensor with matter parameters. We explore different factors responsible for density inhomogeneities with non-dissipative dust, isotropic as well as anisotropic fluids and dissipative dust cloud. We find that shear, pressure, dissipative parameters and $f(R)$ terms affect the existence of inhomogeneous energy density.

Sharif, M

2015-01-01T23:59:59.000Z

395

Nuclear Safety Management, Final Rule; Delay of Effective Date (66 FR  

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

Nuclear Safety Management, Final Rule; Delay of Effective Date (66 Nuclear Safety Management, Final Rule; Delay of Effective Date (66 FR 8746), Fed Reg, 2/2/01 Nuclear Safety Management, Final Rule; Delay of Effective Date (66 FR 8746), Fed Reg, 2/2/01 Nuclear Safety Management, Final Rule; Delay of Effective Date (66 FR 8746), Fed Reg, 2/2/01 In accordance with the memorandum of January 20, 2001, from the Assistant to the President and Chief of Staff, entitled ''Regulatory Review Plan,'' published in the Federal Register on January 24, 2001 (66 FR 7702), this action temporarily delays for 60 days the effective date of the rule entitled ''Alternate Fuel Transportation Program; Biodiesel Fuel Use Credit'' published in the Federal Register on January 11, 2001 (66 FR 2207). DATES: The effective date of the rule amending 10 CFR part 490

396

Photoresponse of the FR3 electron-spin-resonance signal in GaAs  

Science Journals Connector (OSTI)

The photoresponse of the FR3 electron-spin-resonance (ESR) signal in GaAs has been studied. Excitation and quenching of the FR3 ESR is shown to result from the optically induced charge exchange between the FR3 center and the AsGa antisite. The FR3 ESR can be persistently excited with photons in the range 1.0 eVFR3 center is presented, the corresponding level lying between Ev+0.03 eV and Ev+0.52 eV.

U. Kaufmann; W. Wilkening; M. Baeumler

1987-11-15T23:59:59.000Z

397

TREM -accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 1 sur 4 02/01/2014 11:13  

E-Print Network (OSTI)

TREM - accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 1 - accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 2 sur 4 02;TREM - accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 3 sur 4

Paris-Sud XI, Université de

398

accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 1 sur 29 27/01/2014 16:17  

E-Print Network (OSTI)

accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 1 sur 29 27;accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 2 sur 29 27;accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 3 sur 29 27

Paris-Sud XI, Université de

399

cs.wisc.edu  

E-Print Network (OSTI)

piece of software that functions efficiently on any given QP application. ...... age from the HSL Archive) and building OOQP executables for the various solvers. ... Research, U.S. Department of Energy, under Contract W-31-109-Eng-38; and by.

2002-12-20T23:59:59.000Z

400

.,~ .\\DOCKET . 1'-frA-e1Z--L  

E-Print Network (OSTI)

include an additional requirement of a minimum standard for power factor. The proposed efficiency.,~ .\\DOCKET . 1'-frA-e1Z--L DATE ,STATE OF CALIFORNIA REeD.JAN 1'l l012 ENERGY RESOURCES CONSERVATION AND DEVELOPMENT COMMISSION Appliance Efficiency Regulations ) ) ) Docket No. ll-AAER-2 Order

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


401

Spectroscopy and high-spin structure of Fr209  

Science Journals Connector (OSTI)

Excited states in Fr209 have been studied using the Au197(O16,4n)Fr209 reaction with pulsed beams and ?-ray and electron spectroscopy. A comprehensive scheme has been established up to an excitation energy of about 6 MeV and spins of about 49/2?. Several isomers have been identified including a J?=25/2+, ?=48(3) ns state at 2130 keV and a 606(26) ns, 45/2- state at 4660 keV. The latter state decays via an enhanced E3 transition with a strength of 28.8(12) W.u. It can be identified with a similar isomer in the heavier odd isotopes Fr211 and Fr213, arising from the maximal coupling of the five valence protons in the ?h9/23i13/22 configuration. The systematics of the yrast states in the odd-A isotopes are discussed, including the presence of states arising from the main proton configurations coupled to the p1/2, f5/2, and i13/2 neutron holes. Shell-model configurations are assigned to many of the observed states. The isotopic assignment differs from earlier work, which is shown to be erroneous.

G. D. Dracoulis; P. M. Davidson; G. J. Lane; A. P. Byrne; T. Kibédi; P. Nieminen; H. Watanabe; A. N. Wilson

2009-05-13T23:59:59.000Z

402

Accurate and Precise Determination of Boron Isotopic Ratios at Low Concentration by Positive Thermal Ionization Mass Spectrometry Using Static Multicollection of Cs2BO2+ Ions  

Science Journals Connector (OSTI)

Accurate and Precise Determination of Boron Isotopic Ratios at Low Concentration by Positive Thermal Ionization Mass Spectrometry Using Static Multicollection of Cs2BO2+ Ions ... (1) A relatively large mass difference (10%) between the two isotopes and high volatility results in significant boron isotopic variation from ?70‰(2) to +75‰(3) in natural materials; thus, boron isotopes have numerous applications in geochemistry, isotope hydrology, oceanography, environmental sciences, cosmology, and nuclear technology. ... (2) Our method provided better long-term stability of NIST 951 standard compared to “Zoom Quad” mode when more than two isotopes were determined in addition to boron isotope. ...

Mao-yong He; Ying-kai Xiao; Zhang-dong Jin; Yun-qi Ma; Jun Xiao; Yan-ling Zhang; Chong-guang Luo; Fei Zhang

2013-05-29T23:59:59.000Z

403

Development of a process for the extraction of {sup 137}Cs from acidic HLLW based on crown-calix extractant use of di-alkylamide modifier  

SciTech Connect

Within the framework of the ARTIST project of total fuel retreatment with ecological mixtures of solvents and extractants containing only C, H, O, and N atoms, a process segment of extraction of {sup 137}Cs from acidic stream was developed. The process with 25,27-Bis(1-octyloxy)calix[4]arene-crown- 6, DOC[4]C6, dissolved at its 0.01 M concentration in a mixture of 90 vol % 1-octanol and 10% dihexyl octanamide, DHOA was proposed as a viable variant due to its good multicycle performance, even with irradiated solvent, and due to the good chemical stability of the chosen combination of solvent mixture. (authors)

Alexova, J.; Sirova, M.; Rais, J. [Nuclear Research Institute Rez plc, 25068 Rez (Czech Republic); Suzuki, S.; Hirata, M.; Kimura, T. [Japan Atomic Energy Agency, Tokai-mura, Ibaraki (Japan); Tachimori, S. [Secretariat of the Nuclear Safety Commission of Japan, Tokyo (Japan)

2008-07-01T23:59:59.000Z

404

Microsoft Word - 51FR4011.doc  

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

Western Area Power Administration Western Area Power Administration AGENCY: Western Area Power Administration, Department of Energy. 51 FR 4012 January 31, 1986 Post-1989 General Power Marketing and Allocation Criteria; Pick-Sloan Missouri Basin Program-Western Division ACTION: Final marketing criteria and call for applications for power. SUMMARY: The Post-1989 General Power Marketing and Allocation Criteria (Criteria) for the sale of energy with capacity from the Pick-Sloan Missouri Basin Program-Western Division (P- SMBP-WD) and the Fryingpan-Arkansas Project (Fry-Ark) by the Western Area Power Administration (Western) is published herein, together with a discussion of the issues raised during the public comment process, and a discussion of revisions made to the Proposed

405

Final FR BCEPS NOPR 1904 AB57  

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

22:02 Mar 26, 2012 22:02 Mar 26, 2012 Jkt 226001 PO 00000 Frm 00002 Fmt 4701 Sfmt 4702 E:\FR\FM\27MRP2.SGM 27MRP2 sroberts on DSK6SPTVN1PROD with PROPOSALS 18478 Federal Register / Vol. 77, No. 59 / Tuesday, March 27, 2012 / Proposed Rules DEPARTMENT OF ENERGY 10 CFR Part 430 [Docket Number EERE-2008-BT-STD- 0005] RIN 1904-AB57 Energy Conservation Program: Energy Conservation Standards for Battery Chargers and External Power Supplies AGENCY: Office of Energy Efficiency and Renewable Energy, Department of Energy. ACTION: Notice of proposed rulemaking (NOPR) and public meeting. SUMMARY: The Energy Policy and Conservation Act (EPCA) prescribes energy conservation standards for various consumer products and commercial and industrial equipment, including battery chargers and external

406

Constraining f(R) theories with cosmography  

SciTech Connect

A method to set constraints on the parameters of extended theories of gravitation is presented. It is based on the comparison of two series expansions of any observable that depends on H(z). The first expansion is of the cosmographical type, while the second uses the dependence of H with z furnished by a given type of extended theory. When applied to f(R) theories together with the redshift drift, the method yields limits on the parameters of two examples (the theory of Hu and Sawicki [1], and the exponential gravity introduced by Linder [2]) that are compatible with or more stringent than the existing ones, as well as a limit for a previously unconstrained parameter.

Pannia, Florencia Anabella Teppa [Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Paseo del Bosque s/n, B1900FWA (Argentina); Bergliaffa, Santiago Esteban Perez, E-mail: fteppa@fcaglp.unlp.edu.ar, E-mail: sepbergliaffa@gmail.com [Departamento de Física Teórica, Instituto de Física, Universidade do Estado de Rio de Janeiro, CEP 20550-013, Rio de Janeiro (Brazil)

2013-08-01T23:59:59.000Z

407

? decay of Fr216 and At212  

Science Journals Connector (OSTI)

The alpha and coincident gamma decays of Fr216 and At212 in secular equilibrium with 0.8 s Pa224 and 26.1 ms Ac220 have been studied with emphasis on the level scheme of At212. The level structure has been interpreted in terms of the shell model configurations ?(h9/2)9/23?(g9/2), ?(h9/2)0+2(f7/2)?(g9/2), and ?(h9/2)9/23?(i11/2). These configurations are then compared with the calculated configurations in At212 and with the corresponding experimental configurations in Bi210 and Bi212. In all three cases plots of the experimental energies vs the spin show the expected inverted parabola shape, but as we move farther away from the Pb208 closed shells, the inverted parabolas become more compressed. © 1996 The American Physical Society.

C. F. Liang; P. Paris; R. K. Sheline; P. Alexa; A. Gizon

1996-11-01T23:59:59.000Z

408

Incidence of neoplasms in ages 0-19 Y in parts of Sweden with high {sup 137}Cs fallout after the Chernobyl accident  

SciTech Connect

The incidence of neoplasms in childhood and adolescence in northern and central Sweden before and after the radioactive fallout from the Chernobyl accident was investigated in an ecologic study, 1978 to 1992. The study included all parishes in the six most contaminated counties classified after aerial mapping of ground radiation form {sup 137}Cs and investigated 746 cases of neoplasms in ages 0-19 y, diagnosed in the six counties. Incidence and relative risks of neoplasms were compared in areas with high, intermediate, and low contamination after versus before the Chernobyl accident in 1986. A continuous increase of brain tumor incidence in the ages 0-19 y during the period 1978-92 without clear relationship to the Chernobyl fallout was discovered. No clear relationship between the incidence of brain tumor and the exposure to varying levels of radiation from {sup 137}Cs was apparent. A some-what decreased relative risk of acute lymphatic leukemia appeared in areas with increased exposure. Other neoplasms showed no changes in incidence over time or with regard to exposure. Until now, there is no indication that the Chernobyl accident has affected the incidence of childhood and adolescence neoplasms in Sweden, but it is still too early for any final conclusion about the effect of this event. 12 refs., 1 fig., 2 tabs.

Tondel, M.; Flodin, U.; Skoeldestig, A.; Axelson, O. [Univ. Hospital, Linkoeping (Sweden)] [and others

1996-12-01T23:59:59.000Z

409

Investigation for the puzzling abundance pattern of the neutron-capture elements in the ultra metal-poor star: CS 30322-023  

E-Print Network (OSTI)

The s-enhanced and very metal-poor star CS 30322-023 shows a puzzling abundance pattern of the neutron-capture elements, i.e. several neutron-capture elements such as Ba, Pb etc. show enhancement, but other neutron-capture elements such as Sr, Eu etc. exhibit deficient with respect to iron. The study to this sample star could make people gain a better understanding of s- and r-process nucleosynthesis at low metallicity. Using a parametric model, we find that the abundance pattern of the neutron-capture elements could be best explained by a star that was polluted by an AGB star and the CS 30322-023 binary system formed in a molecular cloud which had never been polluted by r-process material. The lack of r-process material also indicates that the AGB companion cannot have undergone a type-1.5 supernova, and thus must have had an initial mass below 4.0M$_\\odot$, while the strong N overabundance and the absence of a strong C overabundance indicate that the companion's initial mass was larger than 2.0M$_\\odot$. The smaller s-process component coefficient of this star illustrates that there is less accreted material of this star from the AGB companion, and the sample star should be formed in the binary system with larger initial orbital separation where the accretion-induced collapse (AIC) mechanism can not work.

W. Y. Cui; B. Zhang; K. Ma; L. Zhang

2007-02-26T23:59:59.000Z

410

Study of CS/sub 2/ in the 3--10 eV energy range by electron energy loss spectroscopy  

SciTech Connect

Electron impact energy loss spectra are obtained in CS/sub 2/ in the energy loss range of 3--10 eV with high and medium energy resolution. Measurements have been performed at various incident electron energies (approx.10--100eV) and scattering angles (4/sup 0/--90/sup 0/). The high energy resolution (approx.25 meV) has made possible the detailed analysis of the vibrational progressions and Rydberg series, and some identifications are supported by the plots of the differential cross sections of the studied transitions. New bands are evidenced in the region of the low-lying states 3--5 eV and classifications are proposed. The features appearing between 6.5 and 10 eV are classified into ten Rydberg series converging to the X /sup 2/Pi/sub g/ ground state of CS/sup +//sub 2/, and assignments are proposed for most of them. New triplet features are also evidenced around 6.6 eV, while the triplet character proposed by Greening and King for some transitions is not confirmed.

Hubin-Franskin, M.; Delwiche, J.; Poulin, A.; Leclerc, B.; Roy, P.; Roy, D.

1983-02-01T23:59:59.000Z

411

Electronic structure of alkaline metal hydrides according to MO LCAO-SCF-CNDO cluster calculations  

Science Journals Connector (OSTI)

This paper presents the results of a quantum chemical study of compounds MH (M = Li, Na, K, Rb, and Cs) in a cluster approximation. The calculations were performed by the MO LCAO-SCF- ... model systems of high-te...

E. A. Zharikova; A. I. Ermakov; R. P. Ozerov

412

E-Print Network 3.0 - abschlubericht fr das Sample Search Results  

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

Sp Ges IIIB Mu IVA IIID IVC... IA En Bio IIIC IVD 10 - 12 Sp Soz EvR, Phi Geo Ges De, Phy Bi, Mu Soz Mu IVD Fr* IVA De, Phy IIIA Spo Source: Kurtz, Stefan - Center for...

413

Solar System Constraints on a Cosmologically Viable $f(R)$ Theory  

E-Print Network (OSTI)

Recently, a model $f(R)$ theory is proposed \\cite{recent} which is cosmologically viable and distinguishable from $\\Lambda$CDM. We use chameleon mechanism to investigate viability of the model in terms of Solar System experiments.

Yousef Bisabr

2009-12-02T23:59:59.000Z

414

ISSN0249-6399ISRNINRIA/RR--8562--FR+ENG Juillet 2014  

E-Print Network (OSTI)

ISSN0249-6399ISRNINRIA/RR--8562--FR+ENG RESEARCH REPORT N° 8562 Juillet 2014 Project-Team Camus-Team Camus Research Report n° 8562 Juillet 2014 12 pages Abstract: This paper describes an algorithm

Paris-Sud XI, Université de

415

Spatially Homogeneous Rotating Solution in f(R) Gravity and Its Energy Contents  

E-Print Network (OSTI)

In this paper, the metric approach of $f(R)$ theory of gravity is used to investigate the exact vacuum solutions of spatially homogeneous rotating spacetimes. For this purpose, R is replaced by f(R) in the standard Einstein-Hilbert action and the set of modified Einstein field equations reduce to a single equation. We adopt the assumption of constant Ricci scalar which maybe zero or non-zero. Moreover, the energy density of the non-trivial solution has been evaluated by using the generalized Landau-Lifshitz energy-momentum complex in the perspective of f(R) gravity for some appropriate f(R) model, which turns out to be a constant quantity.

M. Jamil Amir; Saima Naheed

2013-12-22T23:59:59.000Z

416

Sequence and annotation of the 314-kb MT325 and the 321-kb FR483 viruses that infect Chlorella Pbi  

E-Print Network (OSTI)

Sequence and annotation of the 314-kb MT325 and the 321-kb FR483 viruses that infect Chlorella Pbi of the family Phycodnaviridae, genus Chlorovirus, infect the fresh water, unicellular, eukaryotic, chlorella-like green alga, Chlorella Pbi. The 314,335-bp genome of MT325 and the 321,240-bp genome of FR483

Graves, Michael V.

417

FR Cnc Nature Revisited M.C. Galvez, A. Golovin, M. Hernan-Obispo, E. Pavlenko, M. Andreev, D.  

E-Print Network (OSTI)

FR Cnc Nature Revisited M.C. G´alvez, A. Golovin, M. Hern´an-Obispo, E. Pavlenko, M. Andreev, D and spectroscopic monitoring of FR Cnc re- ported a tricky nature. We carried out several observations at different Cnc in three observing runs: March-April 2004, using the Fibre Optics Cassegrain Echelle Spec

Complutense de Madrid, Universidad

418

Dependence of the half-life of {sup 221}Fr on the implantation environment  

SciTech Connect

The possible dependence of the half-life of {sup 221}Fr on the solid-state environment has been investigated by the simultaneous measurement of implanted {sup 221}Fr ions in an insulator (Si) and a metallic substrate (Au) at the ISOLDE facility at CERN. Our results indicate that, if existing, the difference in half-life does not follow a systematic trend and it is well below 1%.

Olaizola, B. [Grupo de Fisica Nuclear, Universidad Complutense de Madrid, 28040 Madrid (Spain); Fraile, L. M. [Grupo de Fisica Nuclear, Universidad Complutense de Madrid, 28040 Madrid (Spain); ISOLDE, PH Department, CERN, CH-1211 Geneva 23 (Switzerland); Riisager, K.; Jeppesen, H.; Skovbo, K.; Thomsen, L. A. [ISOLDE, PH Department, CERN, CH-1211 Geneva 23 (Switzerland); Institut for Fysik og Astronomi, Aarhus Universitet, Ny Munkegade 120, 8000 Aarhus C (Denmark); Correia, J. G.; Johnston, K. [ISOLDE, PH Department, CERN, CH-1211 Geneva 23 (Switzerland); Fynbo, H. O. U.; Kirsebom, O. [Institut for Fysik og Astronomi, Aarhus Universitet, Ny Munkegade 120, 8000 Aarhus C (Denmark)

2010-04-26T23:59:59.000Z

419

High-Temperature Phase Transitions in CsH2PO4 Under Ambient and High-Pressure Conditions: A Synchrotron X-ray Diffraction Study  

SciTech Connect

To clarify the microscopic origin of the temperature-induced three-order-of-magnitude jump in the proton conductivity of CsH2PO4 (superprotonic behavior), we have investigated its crystal structure modifications within the 25-300 C temperature range under both ambient- and high-pressure conditions using synchrotron x-ray diffraction. Our high-pressure data show no indication of the thermal decomposition/polymerization at the crystal surface recently proposed as the origin of the enhanced proton conductivity. Instead, we found direct evidence that the superprotonic behavior of the title material is associated with a polymorphic structural transition to a high-temperature cubic phase. Our results are in excellent agreement with previous high-pressure ac impedance measurements.

Botez,C.; Hermosillo, J.; Zhang, J.; Qian, J.; Zhao, Y.; Majzlan, J.; Chianelli, R.; Pantea, C.

2007-01-01T23:59:59.000Z

420

No evidence for in vivo induction of genomic instability in bone marrow cells collected from mice exposed to low-dose 137Cs Îł rays:  

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

Rithidech et al, 2006 1 Rithidech et al, 2006 1 No evidence for in vivo induction of genomic instability in bone marrow cells collected from mice exposed to low-dose 137 Cs Îł rays: Kanokporn Noy Rithidech 1 , Chatchanok Loetchutinat 1 , Louise Honikel 1 , and Elbert B. Whorton 2 1 Pathology Department, Stony Brook University, Stony Brook, NY 11794-8691 2 Molecular Epidemiology Research Program, University of Texas Medical Branch at Galveston, TX 77555-1153 Assessment of potential health risks associated with exposure to low-dose radiation (at doses below or equal to 0.1 Gy) is still a challenging public health issue. It is therefore important to improve our understanding of potential induction of genomic instability in vivo by this low-dose range because it has been widely suggested that elevation of genomic instability also elevates cancer

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


421

Phase transitions and equation of state of CsI under high pressure and the development of a focusing system for x-rays  

SciTech Connect

The phase transitions and equation of state of ionic solid cesium iodide were studied under high pressure and room temperature in a diamond anvil cell. The studies were carried out using both energy dispersive and angular dispersive diffraction methods on synchrotron radiation sources over the pressure range from atmospheric pressure to over 300 gigapascals (3 million atmospheres). CsI undergoes a distinct phase transition at about 40 GPa, a pressure that is much lower than the reported insulator-metal transition at 110 GPa, from the atmospheric pressure B2(CsCl) structure to an orthorhombic structure. At higher pressures, a continuous distortion in the structure was observed with a final structure similar to a hcp lattice under ultra high pressure. No volume discontinuity was observed at the insulator-metal transition. The newly found transition sequence is different from the result of previous static compression studies. The current structure has a smaller unit cell volume than the previous assignment. This has resolved a long existing controversy among the previous static compression studies, the dynamic compression studies, and the theoretical studies. The current results also explain the apparent discrepancy between the present study and the previous static studies. We also present the development of a focusing system for high energy x-rays (> 12 keV) that is particularly suited for high pressure diffraction studies. This system uses a pair of multilayer coated spherical mirrors in a Kirkpatrick-Baez geometry. A focused beam size less than 10 micron in diameter can be readily achieved with sufficient intensity to perform diffraction studies. 93 refs., 46 figs., 15 tabs.

Wu, Yan.

1990-11-01T23:59:59.000Z

422

The use of comparative {sup 137}Cs body burden estimates from environmental data/models and whole body counting to evaluate diet models for the ingestion pathway  

SciTech Connect

Rongelap and Utirik Atolls were contaminated on 1 March 1954, by a U.S. nuclear test at Bikini Atoll code named BRAVO. The people at both atolls were removed from their atolls in the first few days after the detonation and were returned to their atolls at different times. Detailed studies have been carried out over the years by Lawrence Livermore National Laboratory (LLNL) to determine the radiological conditions at the atolls and estimate the doses to the populations. The contribution of each exposure pathway and radionuclide have been evaluated. All dose assessments show that the major potential contribution to the estimated dose is {sup 137}Cs uptake via the terrestrial food chain. Brookhaven National Laboratory (BNL) has carried out an extensive whole body counting program at both atolls over several years to directly measure the {sup 137}Cs body burden. Here we compare the estimates of the body burdens from the LLNL environmental method with body burdens measured by the BNL whole body counting method. The combination of the results from both methods is used to evaluate proposed diet models to establish more realistic dose assessments. Very good agreement is achieved between the two methods with a diet model that includes both local and imported foods. Other diet models greatly overestimate the body burdens (i.e., dose) observed by whole body counting. The upper 95% confidence limit of interindividual variability around the population mean value based on the environmental method is similar to that calculated from direct measurement by whole body counting. Moreover, the uncertainty in the population mean value based on the environmental method is in very good agreement with the whole body counting data. This provides additional confidence in extrapolating the estimated doses calculated by the environmental method to other islands and atolls. 46 refs., 8 figs., 5 tabs.

Robison, W.L. [Lawrence Livermore National Lab., CA (United States); Sun, C. [Brookhaven National Lab., Upton, NY (United States)

1997-07-01T23:59:59.000Z

423

TO: FILE MEMORANDUM FR0t-k  

Office of Legacy Management (LM)

FR0t-k FR0t-k 5: ' sa- _____ -_-_----_ . SUBJECT: w - w e, ' eencaze C~d%ZE%,~ti-~~~-- ____ STf-w!!_C(_m. E!NERIE Past:-&s&-Q-A----- Current:--___---____-------------- Owner contacted r~ yes /qnno) if yes, date contacted __ IveE~E-EzEQ!2!! 0 Research & Development g Facility Type 0 Production scale testing 0 Pilot Scale 0 llanufacturing 0 University 0 Bench Scale Process 0 Theoretical Studies 0 Research Organization 0 Sample 84 Analysis 0 Production 0 Disposal/Storage R Prime Subcontractrir 0 Purchase Order 0 Other information (i.e., cost + fixed fee. unit price, time & material, etc) ------- ---------------------------- Ccmtra=t/Purchase Order jLJ-q30 -;) *----------L---l----________ - s c1 _~~~---~~----~-----~---~-~-- -- C!2!YI-R!3-CII&LEERE!3

424

Executive Order 13212: 66 FR 28357 (22 May 2001)  

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

Executive Order 13212: 66 FR 28357 (22 May 2001) Executive Order 13212: 66 FR 28357 (22 May 2001) Executive Order 13212--Actions To Expedite Energy-Related Projects May 18, 2001 By the authority vested in me as President by the Constitution and the laws of the United States of America, and in order to take additional steps to expedite the increased supply and availability of energy to our Nation, it is hereby ordered as follows: Section 1. Policy. The increased production and transmission of energy in a safe and environmentally sound manner is essential to the well-being of the American people. In general, it is the policy of this Administration that executive departments and agencies (agencies) shall take appropriate actions, to the extent consistent with applicable law, to expedite projects that will increase the

425

Identification of an ?-decaying (9-) isomer in Fr216  

Science Journals Connector (OSTI)

The ? decay of the trans-lead isotopes At212, Fr216, and Ac220 was investigated by using mass-separated sources and analog as well as digital signal processing. By measuring ?-? time correlations evidence was obtained for the occurrence of an ?-decaying (9-) isomer in Fr216. The ?-decay energy and half-life amount to 9000(5) keV and 850(30) ns, respectively. The excitation energy of the isomer is compared with shell-model predictions for the high-spin members of the ?(h9/2)?(g9/2) multiplet, and the relevance of the new data concerning the search for reflection asymmetry is presented.

J. Kurcewicz; W. Czarnacki; M. Karny; M. Kasztelan; M. Kisieli?ski; A. Korgul; W. Kurcewicz; J. Kurpeta; S. Lewandowski; P. Majorkiewicz; H. Penttilä; A. P?ochocki; B. Roussičre; O. Steczkiewicz; A. Wojtasiewicz

2007-11-27T23:59:59.000Z

426

EddyRenaud-Lesam2013_Article -accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 1 sur 10 03/02/2014 10:12  

E-Print Network (OSTI)

EddyRenaud-Lesam2013_Article - accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php - accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 2 sur 10 03_Article - accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 3 sur 10

Paris-Sud XI, Université de

427

Thermodynamics in f(R) gravity in the Palatini formalism  

SciTech Connect

We investigate thermodynamics of the apparent horizon in f(R) gravity in the Palatini formalism with non-equilibrium and equilibrium descriptions. We demonstrate that it is more transparent to understand the horizon entropy in the equilibrium framework than that in the non-equilibrium one. Furthermore, we show that the second law of thermodynamics can be explicitly verified in both phantom and non-phantom phases for the same temperature of the universe outside and inside the apparent horizon.

Bamba, Kazuharu; Geng, Chao-Qiang, E-mail: bamba@phys.nthu.edu.tw, E-mail: geng@phys.nthu.edu.tw [Department of Physics, National Tsing Hua University, Hsinchu, 300 Taiwan (China)

2010-06-01T23:59:59.000Z

428

f(R) cosmological solutions with varying speed of light  

E-Print Network (OSTI)

We consider f(R) modified gravity theories for describing varying speed of light in a spatially flat FRW model, and find some exact solutions. Also we examine the dynamics of this model by dynamical system method assuming a LambdaCDM background and we find some exact solutions by considering the character of critical points of the theory in both formalisms. The behaviour of the speed of light is obtained.

Azam Izadi; Ali Shojai

2010-01-24T23:59:59.000Z

429

Theoretical study of odd-mass Fr isotopes using the collective clusterization approach of the dynamical cluster-decay model  

Science Journals Connector (OSTI)

The reaction dynamics of various odd-mass Fr isotopes is studied over a wide range of incident energies, spread across the Coulomb barrier. The specific reactions analyzed are 18O+197Au and 19F+192,194,196,198,200Pt, forming odd-mass 211?219Fr* compound systems where some data are available for three of these isotopes: 213,215,217Fr*. Based on the dynamical cluster-decay model (DCM), we have extended our calculations of the evaporation residue (ER) cross sections to the mainly fissioning 215Fr*, using the systematics of 213,217Fr* isotopes where the available ER cross sections (as well as fusion-fission cross sections) were studied earlier within the DCM. In order to obtain a clear picture of the dynamics involved, including entrance channel effects, the variations of fragmentation potential, preformation factor, and decay barrier height are analyzed. The relevance of barrier modification effects is also explored in the decay of 213,215,217Fr* nuclei. In addition, fusion-fission (ff) cross sections are extended to 213,217Fr* systems where some more data has recently become available. Also, the fission fragment anisotropies (so far measured and studied for 215Fr* alone) are estimated for 213,217Fr* using DCM for the use of nonsticking moment of inertia, and relevant comparison with the sticking moment-of-inertia approach is analyzed. Furthermore, the shell closure effects of the decay fragments are investigated for odd-mass 211?219Fr* isotopes.

Gudveen Sawhney; Gurvinder Kaur; Manoj K. Sharma; Raj K. Gupta

2013-09-09T23:59:59.000Z

430

Selective Removal of Cs+, Sr2+, and Ni2+ by K2xMgxSn3–xS6 (x = 0.5–1) (KMS-2) Relevant to Nuclear Waste Remediation  

Science Journals Connector (OSTI)

Selective Removal of Cs+, Sr2+, and Ni2+ by K2xMgxSn3–xS6 (x = 0.5–1) (KMS-2) Relevant to Nuclear Waste Remediation ... ‡ Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, United States ...

Joshua L. Mertz; Zohreh Hassanzadeh Fard; Christos D. Malliakas; Manolis J. Manos; Mercouri G. Kanatzidis

2013-05-15T23:59:59.000Z

431

Student use of Mobile TechnologyStudent use of Mobile TechnologyStudent use of Mobile TechnologyStudent use of Mobile Technology In CiCS (Corporate Information and Computing Services) we are always looking to improve our services.  

E-Print Network (OSTI)

Page 1 Student use of Mobile TechnologyStudent use of Mobile TechnologyStudent use of Mobile TechnologyStudent use of Mobile Technology In CiCS (Corporate Information and Computing Services) we are always looking to improve our services. We are interested in your use of mobile technology (phones

Martin, Stephen John

432

Published by the IEEE CS n 1536-1268/08/$25.00 2008 IEEE PERVASIVE computing Education & TrainingEditor: Scott F. Midkiff n Virginia Tech n midkiff@vt.edu  

E-Print Network (OSTI)

& TrainingEditor: Scott F. Midkiff n Virginia Tech n midkiff@vt.edu As a field, computer science faces (www. scribblerrobot.com)withacustomIPRE EdITor'S InTro An exciting new initiative at Georgia Tech at midkiff@vt.edu. --Scott Midkiff QuICk FACTS Course: Computer Science 1 (CS1) Level: undergraduate

Guzdial, Mark

433

Electron capture and positron decay of Fr206 and Fr208 and the energy levels of Rn206 and Rn208  

Science Journals Connector (OSTI)

The isotopes Fr206 and Fr208 were produced by the reactions Ir(Ne20,xn)Fr206,208 and mass separated on-line. The electron-capture and positron decays to Rn206 and Rn208 were studied by collecting ? ray and internal conversion electron singles spectra as a function of decay time as well as ?-?, ?-e-, and ?-x ray coincidence spectra. The energies and many of the spins were determined for 18 excited, even parity states in Rn208 and for 10 excited, even parity states in Rn206. These nuclei appear to be excellent candidates for interpretation in terms of a weak coupling shell model. The energy levels were also compared to the predictions of the interacting boson approximation model.RADIOACTIVITY Fr206,208 from mass separated products of Irnat(Ne20,xn)Fr206,208. Measured E?, ICC, ?-?-t, e-?-t. Deduced levels E, J, ? in Rn206,208.

B. G. Ritchie; F. T. Avignone; III; H. K. Carter; R. L. Mlekodaj; E. H. Spejewski

1981-04-01T23:59:59.000Z

434

accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 1 sur 36 06/02/2014 16:26  

E-Print Network (OSTI)

accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 1 sur 36 06 (2014) 45-53" DOI : 10.1111/1365-2745.12177 #12;accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 2 sur 36 06/02/2014 16:26 hal-00949680,version1-24Feb2014 #12;accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php

Paris-Sud XI, Université de

435

accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 1 sur 5 03/02/2014 15:57  

E-Print Network (OSTI)

accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 1 sur 5 03)" #12;accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 2 sur 5 03, Vancouver CAN, 28-31/07/2013 hal-00941263,version1-3Feb2014 #12;accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php

Paris-Sud XI, Université de

436

Covalent Structure of the DNA-DNA Interstrand Cross-Link Formed by Reductively Activated FR66979 in Synthetic DNA Duplexes  

Science Journals Connector (OSTI)

Covalent Structure of the DNA-DNA Interstrand Cross-Link Formed by Reductively Activated FR66979 in Synthetic DNA Duplexes ...

Huifang Huang; Tom K. Pratum; Paul B. Hopkins

1994-04-01T23:59:59.000Z

437

Radiation doses for Marshall Islands Atolls Affected by U.S. Nuclear Testing:All Exposure Pathways, Remedial Measures, and Environmental Loss of 137Cs  

SciTech Connect

The United States conducted 24 nuclear tests at Bikini Atoll with a total yield of 76.8 Megatons (MT). The Castle series produced about 60% of this total and included the Bravo test that was the primary source of contamination of Bikini Island and Rongelap and Utrok Atolls. One of three aerial drops missed the atoll and the second test of the Crossroads series, the Baker test, was an underwater detonation. Of the rest, 17 were on barges on water and 3 were on platforms on an island; they produced most of the contamination of islands at the atoll. There were 42 tests conducted at Enewetak Atoll with a total yield of 31.7 MT (Simon and Robison, 1997; UNSCEAR, 2000). Of these tests, 18 were on a barge over wateror reef, 7 were surface shots, 2 aerial drops, 2 under water detonations, and 13 tower shots on either land or reef. All produced some contamination of various atoll islands. Rongelap Atoll received radioactive fallout as a result of the Bravo test on March 1, 1954 that was part of the Castle series of tests. This deposition was the result of the Bravo test producing a yield of 15 MT, about a factor of three to four greater than the predicted yield that resulted in vaporization of more coral reef and island than expected and in the debris-cloud reaching a much higher altitude than anticipated. High-altitude winds were to the east at the time of detonation and carried the debris-cloud toward Rongelap Atoll. Utrok Atoll also received fallout from the Bravo test but at much lower air and ground-level concentrations than at Rongelap atoll. Other atolls received Bravo fallout at levels below that of Utrok [other common spellings of this island and atoll (Simon, et al., 2009)]. To avoid confusion in reading other literature, this atoll and island are spelled in a variety of ways (Utrik, Utirik, Uterik or Utrok). Dose assessments for Bikini Island at Bikini Atoll (Robison et al., 1997), Enjebi Island at Enewetak Atoll (Robison et al., 1987), Rongelap Island at Rongelap Atoll (Robison et al., 1994; Simon et al., 1997), and Utrok Island at Utrok Atoll (Robison, et al., 1999) indicate that about 95-99% of the total estimated dose to people who may return to live at the atolls today (Utrok Island is populated) is the result of exposure to {sup 137}Cs. External gamma exposure from {sup 137}Cs in the soil accounts for about 10 to 15% of the total dose and {sup 137}Cs ingested during consumption of local food crops such as drinking coconut meat and fluid (Cocos nucifera L.), copra meat and milk, Pandanus fruit, and breadfruit accounts for about 85 to 90%. The other 1 to 2% of the estimated dose is from {sup 90}Sr, {sup 239+240}Pu, and {sup 241}Am. The {sup 90}Sr exposure is primarily through the food chain while the exposure to {sup 239+240}Pu, and {sup 241}Am is primarily via the inhalation pathway as a result of breathing re-suspended soil particles.

Robison, W L; Hamilton, T F

2009-04-20T23:59:59.000Z

438

Stripped gas as fuel for newly formed HII regions in the encounter between VCC1249 and M49: a unified picture from NGVS and GUViCS  

E-Print Network (OSTI)

Context: We study the peculiar interacting galaxy system of VCC1249/M49 located in the core of the Virgo B subcluster. Owing to a recent interaction between the dwarf galaxy VCC1249 and the halo gas of the gE M49, neutral hydrogen has been displaced from the interstellar medium of this dwarf into the Virgo ICM. Observations also reveal multiple compact star-forming regions that are embedded in this HI cloud, with a projected separation up to 13 kpc from VCC1249 in the northwest direction. Aims: Motivated by recent NUV imaging from GUViCS of the VCC1249/M49 system that shows significant ongoing/recent star formation in the compact regions, we aim to constrain the origin of these outlying HII regions with a multi-wavelength approach. Methods: Using deep optical (u, g, i, z) imaging from NGVS and new Halpha imaging obtained at the San Pedro Martir observatory together with Keck long-slit spectroscopy, we characterize the SFR, ages, and metallicity of VCC1249 and its outlying compact regions. Moreover, we analyze...

Battaia, Fabrizio Arrigoni; Fumagalli, Michele; Boselli, Alessandro; Boissier, Samuel; Cortese, Luca; Heinis, Sebastien; Ferrarese, Laura; Côté, Patrick; Mihos, J Christopher; Cuillandre, Jean Charles; Duc, Pierre-Alain; Durrell, Patrick; Gwyn, Stephen; Jordán, Andrés; Liu, Chengze; Peng, Eric

2012-01-01T23:59:59.000Z

439

Chloride anion exchange coprocessing for recovery of plutonium from pyrochemical residues and Cs sub 2 PuCl sub 6 filtrate  

SciTech Connect

Continuing studies of plutonium recovery from direct oxide reduction (DOR) and electrorefining (ER) pyrochemical process residues show that chloride anion exchange coprocessing is useful and effective. Coprocessing utilizes DOR residue salt as a reagent to supply the bulk of chloride ion needed for the chloride anion exchange process and to improve ER residue salt solubility. ER residue salt and ER scrapeout can be successfully treated, either alone or together, using coprocessing. In addition, chloride anion exchange at 2.0M acidity results in improved process performance by greatly reducing disproportionation of plutonium(IV), eliminating restrictions on oxidation time compared to operation at 1.0M acidity. Laboratory-scale experiments show that below-discard effluent plutonium losses are obtained. Resin capacity was 30 g Pu/{ell} or greater. Furthermore, it is feasible to perform chloride anion exchange recovery of plutonium from filtrate resulting from precipitation of dicesium hexachloroplutonate (Cs{sub 2}PuCl{sub 6}, an oxidant salt to be used in the molten salt extraction process) and integration of its preparation with recovery of DOR salts. 10 refs., 9 figs., 10 tabs.

Muscatello, A.C.; Killion, M.E.

1990-12-07T23:59:59.000Z

440

Evaluation of improved technologies for the removal of {sup 90}Sr and {sup 137}Cs from process wastewater and groundwater: FY 1995 status  

SciTech Connect

A number of new sorbents are currently being developed for the removal of {sup 90}Sr and {sup 137}Cs from contaminated, caustic low-level liquid waste (LLLW). These sorbents are potentially promising for use in the cleanup of contaminated groundwater and process wastewater containing the two radionuclides. The goal of this subtask is to evaluate the new sorbents to determine whether their associated treatment technology is more selective for the decontamination of wastewater streams than that of currently available processes. Activities during fiscal year 1995 have included completing the characterization of the standard treatment technology, ion exchange on chabazite zeolite. Strontium and cesium sorption on sodium-modified zeolite was observed in the presence of elevated concentrations of wastewater components: sodium, potassium, magnesium, and calcium. The most significant loss of nuclide sorption was noted in the first 0- to 4-meq/L addition of the cations to a wastewater simulant. Radionuclide sorption on the pretreated zeolite was also determined under dynamic flow conditions. Resorcinol-formaldehyde (R-F) resin, which was developed at the Savannah River Site, was selected as the first new sorbent to be evaluated for wastewater treatment. Nuclide sorption on this resin was greater when the resin had been washed with ultrapure water and air dried prior to use.

Bostick, D.T.; Arnold, W.D. Jr.; Burgess, M.W.; McTaggart, D.R.; Taylor, P.A. [Oak Ridge National Lab., TN (United States); Guo, B. [Oak Ridge Research Inst., TN (United States)

1996-03-01T23:59:59.000Z

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


441

Late Time Cosmological Evolution in f(R) theories with Ordinary and Collisional Matter  

E-Print Network (OSTI)

We study the late time cosmological evolution of $f(R)$ theories of modified gravity, with the matter content of the universe being that of collisional self interacting matter. We assume that the universe is described by a flat Friedmann-Lemaitre-Robertson-Walker metric and that it is matter and dark energy dominated. The results of our numerical analysis for a collisional matter $f(R)$ theory are compared with those resulting from pressure-less matter $f(R)$ theory and from the $\\mathrm{\\Lambda}\\mathrm{CDM}$ model. As we shall demonstrate, the resulting picture can vary from model to model, indicating that the effect of collisional matter in $f(R)$ theories is strongly model dependent. Particularly, in a few cases, may give better fit to the $\\mathrm{\\Lambda}\\mathrm{CDM}$ model. In all studied cases, the effective equation of state parameter does not cross the phantom divide, both in the collisional matter and pressure-less matter $f(R)$ theories. Finally, we thoroughly study the effects of collisional matte...

Oikonomou, V K

2014-01-01T23:59:59.000Z

442

? decay of the very neutron-deficient isotopes 197–199Fr  

Science Journals Connector (OSTI)

Decay properties of the very neutron-deficient isotopes 197–199Fr were studied at the velocity filter Separator for Heavy Ion reaction Products (SHIP) at GSI in Darmstadt. The isotopes were produced in the 2n–4n evaporation channels of the fusion-evaporation reaction 60Ni+141Pr ? 201Fr*. Improved ?-decay properties of 199Fr were determined and the possible existence of two ?-decaying states in this nucleus is discussed. For the isotope 198Fr a broad ?-decay energy distribution was detected in the range of (7470–7930) keV and two ?-decaying states were observed with half-lives of 1.1(7) and 15(3) ms. The new isotope 197Fr was identified based on the observation of one ?-decay chain yielding E?=7728(15) keV and T1/2=0.6?0.3+3.0 ms. The systematics of reduced ?-decay widths are presented for neutron-deficient francium, radon, and astatine isotopes.

Z. Kalaninová; A. N. Andreyev; S. Antalic; F. P. Heßberger; D. Ackermann; B. Andel; M. C. Drummond; S. Hofmann; M. Huyse; B. Kindler; J. F. W. Lane; V. Liberati; B. Lommel; R. D. Page; E. Rapisarda; K. Sandhu; Š. Šáro; A. Thornthwaite; P. Van Duppen

2013-04-29T23:59:59.000Z

443

Neutron stars in f(R) gravity with perturbative constraints  

SciTech Connect

We study the structure of neutron stars in f(R) gravity theories with perturbative constraints. We derive the modified Tolman-Oppenheimer-Volkov equations and solve them for a polytropic equation of state. We investigate the resulting modifications to the masses and radii of neutron stars and show that observations of surface phenomena alone cannot break the degeneracy between altering the theory of gravity versus choosing a different equation of state of neutron-star matter. On the other hand, observations of neutron-star cooling, which depends on the density of matter at the stellar interior, can place significant constraints on the parameters of the theory.

Cooney, Alan; DeDeo, Simon; Psaltis, Dimitrios [Department of Physics, University of Arizona, Tucson, Arizona 85721 (United States); Santa Fe Institute, 1399 Hyde Park Road, Santa Fe, New Mexico 87501 (United States); Departments of Astronomy and Physics, University of Arizona, Tucson, Arizona 85721 (United States)

2010-09-15T23:59:59.000Z

444

www.cnrs.fr Hello jQuery !  

E-Print Network (OSTI)

www.cnrs.fr Hello jQuery ! par Daric Vladimir @IGM #12;JavaScript ?JavaScript ? · Mauvais choix apparaître ...Firefox 1.0.x, quelques problèmes peuvent apparaître ... #12;Hello jQyeryHello jQyery Demo Demo. #12;« Hello jQuery » décortiqué« Hello jQuery » décortiqué · Step 1 : télécharger jQueryStep 1

van Tiggelen, Bart

445

Near yrast states in doubly odd Fr214  

Science Journals Connector (OSTI)

High spin states of doubly odd Fr127214 have been investigated using in-beam ?-ray and conversion electron spectroscopy techniques through the Pb206(11B, 3n) and Pb208(11B, 5n) fusion-evaporation reactions. Completely new spectrocopic information has been obtained. The yrast level structure is established up to spin (19+) and some information on ? transitions from higher-lying levels is also obtained. Two new isomers T1/2=174(20) ns and T1/2=11(2) ns were found. Configuration assignments for the low-lying levels are discussed. Information on residual proton-neutron interactions is extracted.

M. E. Debray; A. J. Kreiner; J. M. Kesque; M. Ozafran; A. Romo; H. Somacal; M. E. Vazquez; J. Davidson; M. Davidson; K. Ahn; D. B. Fossan; Y. Liang; R. Ma; E. S. Paul; W. F. Piel; Jr.; N. Xu

1993-11-01T23:59:59.000Z

446

Alpha Decay of the Isomers of Fr214  

Science Journals Connector (OSTI)

Alpha decay from the ground state and an isomeric state of Fr214 has been observed. The ground state has a half-life of 5.0±0.2 msec, and the isomeric state, 3.35±0.05 msec, at an excitation energy of 123 keV. A level scheme for At210 based on several ? transitions observed is presented. The similarity of the energy levels of Bi208 with those of At210 suggests that the addition of a proton pair to Bi208 does not significantly alter the nature of the particle-hole interactions observed for Bi208.

David F. Torgerson; Richard A. Gough; Ronald D. Macfarlane

1968-10-20T23:59:59.000Z

447

On white dwarfs and neutron stars in Palatini f(R) gravity  

E-Print Network (OSTI)

In Palatini $f(R)$ gravity, the parameters of the Schwarzschild - de Sitter solution as well as the whole interior solutions of compact objects are expected to change when compared to general relativity. We solve the Palatini field equations numerically in the case of the models $f(R) = R + \\alpha R^2$ and $f(R) = R - \\mu^4/R$, and using the equation of state of Fermi gas. We show how the density profiles and the prediction for the maximum masses of white dwarfs (the Chandrasekhar limit) and neutron stars (the Tolman-Oppenheimer-Volkoff limit) are altered, and thereby conclude that observations on compact stars may be used to exclude alternative gravity models.

Vappu Reijonen

2009-12-04T23:59:59.000Z

448

First investigation of excited states in the odd-proton nucleus Fr209  

Science Journals Connector (OSTI)

Excited states in Fr209 were produced following the Yb176(Cl37, 4n) reaction. An excitation function was measured with data taken at 173, 179, and 185 MeV. Recoiling fusion-evaporation products were separated using the SASSYER gas-filled spectrometer. HPGe clover detectors of the YRAST Ball array at the target position and at the focal plane were used to detect prompt and delayed gamma ray decays, providing the first spectroscopic information about prompt and delayed transitions in Fr209. The decay from a proposed ?i13/2 configuration isomer was observed in Fr209, and its half-life was measured to be 446(14)ns. States above the isomer were also observed.

D. A. Meyer; C. W. Beausang; J. J. Ressler; H. Ai; H. Amro; M. Babilon; R. F. Casten; C. R. Fitzpatrick; G. Gürdal; A. Heinz; E. A. McCutchan; C. Plettner; J. Qian; N. J. Thomas; V. Werner; E. Williams; N. V. Zamfir; Jing-ye Zhang

2006-02-08T23:59:59.000Z

449

Any correspondence concerning this service should be sent to the repository administrator: staff-oatao@inp-toulouse.fr  

E-Print Network (OSTI)

This is an author-deposited version published in: http://oatao.univ-toulouse.fr/ Eprints ID: 8750 To cite are detailed in the ESI.w) The morphology of the three powder samples was characterized by scanning

Paris-Sud XI, Université de

450

Enumerative sequences of leaves in rational trees Fr'ed'erique Bassino 1 and MariePierre B'eal 2 and Dominique Perrin 1  

E-Print Network (OSTI)

Enumerative sequences of leaves in rational trees Fr'ed'erique Bassino 1 and Marie­Pierre B'eal 2, Universit'e Paris 7 et CNRS http://www­igm.univ­mlv.fr/~--bassino,beal,perrin� Abstract. We prove that any

Bassino, Frédérique

451

Two non-centrosymmetric cubic seleno-germanates related to CsCl-type structure: Synthesis, structure, magnetic and optical properties  

SciTech Connect

Two related non-centrosymmetric, cubic, quaternary chalcogenides, containing europium have been synthesized employing the molten flux method and by the reaction of europium halides with the ternary seleno-germanate, Na{sub 6}Ge{sub 2}Se{sub 6}. The reactions of Eu, Ge and Se were accomplished in a molten Na{sub 2}Se{sub 2} flux at 800 deg. C for 150 h in an evacuated fused silica ampoule and yielded Na{sub 2}EuGeSe{sub 4} (I). Similarly, Na{sub 0.75}Eu{sub 1.625}GeSe{sub 4} (II), could be synthesized at slightly lower temperature (750 deg. C) with a different starting ratio of Eu, Ge, Se and Na{sub 2}Se{sub 2}. A reaction between EuCl{sub 3} and Na{sub 6}Ge{sub 2}Se{sub 6} in 1:2 ratio at 650 deg. C for 96 h in an evacuated fused silica ampoule yielded Na{sub 2}EuGeSe{sub 4} (I), while the reaction between EuI{sub 2} and Na{sub 6}Ge{sub 2}Se{sub 6} in 1:1 ratio under similar conditions yielded Na{sub 0.75}Eu{sub 1.625}GeSe{sub 4} (II). Crystal data for these compounds are as follows: I, cubic, space group I4-bar3m (no. 217), a=7.3466(3), Z=2; II, cubic, space group I4-bar3d (no. 220), a=14.7065(8), Z=16. The crystal structures of I and II are closely related and can be compared to a CsCl-type and its ordered superstructure, respectively. These compounds are semiconductors with optical band gaps around 2 eV. The temperature dependence of the magnetic susceptibility indicated that both compounds are paramagnetic with {mu} {sub eff.}=7.6 and 7.73 {mu} {sub B}, for I and II, respectively, close to the theoretical value of 7.94 {mu} {sub B} for Eu{sup 2+}. Raman spectroscopic characterization of the compounds is also reported. - Graphical abstract: Related quaternary chalcogenides, Na{sub 2}EuGeSe{sub 4} (I) and its ordered superstructure Na{sub 0.75}Eu{sub 1.625}GeSe{sub 4} (II), have been synthesized employing solid-state reactions. The structures of these compounds contain isolated GeSe{sub 4} trerahedra and are related to the CsCl-type structure. These compounds are semiconducting with optical band gaps around 2 eV.

Choudhury, Amitava [Department of Chemistry, Colorado State University, Fort Collins, CO 80523 (United States); Polyakova, Larisa A. [Department of Chemistry, Colorado State University, Fort Collins, CO 80523 (United States); Strobel, Sabine [Department of Chemistry, Colorado State University, Fort Collins, CO 80523 (United States); Dorhout, Peter K. [Department of Chemistry, Colorado State University, Fort Collins, CO 80523 (United States)], E-mail: pkd@lamar.colostate.edu

2007-04-15T23:59:59.000Z

452

The behavior of $f(R)$ gravity in the solar system, galaxies and clusters  

E-Print Network (OSTI)

For cosmologically interesting $f(R)$ gravity models, we derive the complete set of the linearized field equations in the Newtonian gauge, under environments of the solar system, galaxies and clusters respectively. Based on these equations, we confirmed previous $\\gamma=1/2$ solution in the solar system. However, $f(R)$ gravity models can be strongly environment-dependent and the high density (comparing to the cosmological mean) solar system environment can excite a viable $\\gamma=1$ solution for some $f(R)$ gravity models. Although for $f(R)\\propto -1/R$, it is not the case; for $f(R)\\propto -\\exp(-R/\\lambda_2H_0^2)$, such $\\gamma=1$ solution does exist. This solution is virtually indistinguishable from that in general relativity (GR) and the value of the associated curvature approaches the GR limit, which is much higher than value in the $\\gamma=1/2$ solution. We show that for some forms of $f(R)$ gravity, this solution is physically stable in the solar system and can smoothly connect to the surface of the Sun. The derived field equations can be applied directly to gravitational lensing of galaxies and clusters. We find that, despite significant difference in the environments of galaxies and clusters comparing to that of the solar system, gravitational lensing of galaxies and clusters can be virtually identical to that in GR, for some forms of $f(R)$ gravity. Fortunately, galaxy rotation curve and intra-cluster gas pressure profile may contain valuable information to distinguish these $f(R)$ gravity models from GR.

Pengjie Zhang

2007-01-23T23:59:59.000Z

453

09/13/2011! CS4961! CS4961 Parallel Programming  

E-Print Network (OSTI)

that editing on water is somewhat primitive ­ I'm using vim. You may want to edit on a different machine and copy to water, but keep in mind that you'll need a fast edit-compile-execute path. Or you can try vim

Hall, Mary W.

454

Black holes and gravitational waves in three-dimensional f(R) gravity  

E-Print Network (OSTI)

In the three-dimensional pure Einstein gravity, the geometries of the vacuum space-times are always trivial, and gravitational waves (gravitons) are strictly forbidden. For the first time, we find a vacuum circularly symmetric black hole with nontrivial geometries in $f(R)$ gravity theory, in which a true singularity appears. In this frame with nontrivial geometry, a perturbative gravitational wave does exist. Beyond the perturbative level, we make a constructive proof of the existence of a gravitational wave in $f(R)$ gravity, where the Birkhoff-like theorem becomes invalid. We find two classes of exact solutions of circularly symmetric pure gravitational wave radiation and absorption.

Hongsheng Zhang; Dao-Jun Liu; Xin-Zhou Li

2014-12-19T23:59:59.000Z

455

Static quadrupole moment of high-spin isomers in the doubly-odd Fr214 nucleus  

Science Journals Connector (OSTI)

We have determined the spectroscopic quadrupole moment of two high-spin isomers (I=11 ? and I=32 ?) which have recently been identified in the doubly-odd Fr214 nucleus. The data have been extracted from a series of former level mixing spectroscopy (LEMS) measurements which had been performed to measure quadrupole moments of high-spin isomers in Fr211,212,213 isotopes. The quadrupole frequencies were measured in natural and enriched poly- and single-crystalline T1 at different temperatures.

G. Neyens; I. Van Asbroeck; R. Coussement

1995-06-01T23:59:59.000Z

456

Levels in 221Fr fed by the ? decay of 225Ac  

Science Journals Connector (OSTI)

The ? decay of 225Ac to 221Fr was reinvestigated by ?-ray spectroscopic studies with HPGe detectors and 225Ac sources purified using continuous elution processes. Energies and intensities of about 120 ?-ray transitions were measured. Among these, 40 are reported for the first time. A 221Fr level scheme with 46 excited states and 124 transitions is proposed. The level structure is described in terms of a reflection asymmetric structure with parity doublet bands K?=1/2±, 3/2±, 5/2±, and 3/2± in order of increasing energy. Both strong and intermediate coupling models have been shown to be in good agreement with the experimental data.

G. Ardisson; J. Gasparro; V. Barci; R. K. Sheline

2000-11-09T23:59:59.000Z

457

Vibrating Black Holes in f(R) gravity  

E-Print Network (OSTI)

We consider general perturbations of a Schwarzschild black holes in the context of f(R) gravity. A reduced set of frame independent master variables are determined, which obey two closed wave equations - one for the transverse, trace-free (tensor) perturbations and the other for the additional scalar degree of freedom which characterise fourth-order theories of gravity. We show that for the tensor modes, the underlying dynamics in f(R) gravity is governed by a modified Regge-Wheeler tensor which obeys the same Regge-Wheeler equation as in General Relativity. We find that the possible sources of scalar quasinormal modes that follow from scalar perturbations for the lower multipoles result from primordial black holes, while higher mass, stellar black holes are associated with extremely high multipoles, which can only be produced in the first stage of black hole formation. Since scalar quasi-normal modes are short ranged, this scenario makes their detection beyond the range of current experiments.

Anne Marie Nzioki; Rituparno Goswami; Peter K. S. Dunsby

2014-08-01T23:59:59.000Z

458

CS Freiburg 2001 Thilo Weigel  

E-Print Network (OSTI)

system, in our path planner, and in the cooperation component. 1 Introduction Although the general setup of software components in the system that could be improved. For this reason, we invested in new hardware of improvements were made on the system level, such as integrating a new camera system. Furthermore, we worked

Nebel, Bernhard

459

VERA-CS Validation Plan  

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

55,000 pages and contains 516 evaluations representing 4405 critical, near-critical, or subcritical configurations, 24 criticality alarm placementshielding configurations with...

460

Rechnerarchitekturen und Betriebssysteme (CS201)  

E-Print Network (OSTI)

, funktioniert unter Wine C-Compiler, IDE: Ubuntu: sudo apt-get install arduino Ubuntu: sudo apt-get install gcc-avr http://www.nongnu.org/avr-libc/ Tutorial: http://arduino.cc/en/Guide/HomePage http

Vetter, Thomas

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


461

www.cs.wisc.edu  

E-Print Network (OSTI)

... Mathematics and Computer Science Division, Argonne National Laboratory ...... It is of course possible that the method for solving (39) will avoid these ..... of Energy. The U.S. Government retains for itself, and others acting on its behalf, ...

2006-02-07T23:59:59.000Z

462

FR Cnc Nature Revisited M.C. Glvez1, 2 , A. Golovin3, 4, M. Hernn-Obispo2, E. Pavlenko5, M. Andreev6, M., D. Montes2,  

E-Print Network (OSTI)

FR Cnc Nature Revisited M.C. Gálvez1, 2 , A. Golovin3, 4, M. Hernán-Obispo2, E. Pavlenko5, M. Saraswati, Hanle, INDIA The results of photometric and spectroscopic monitoring of FR Cnc reported a tricky@astrax.fis.ucm.es FR Cnc is a K5-7V, chromospherically active star. Here we found spectroscopic and photometric

Complutense de Madrid, Universidad

463

Expertise scientifique et gestion rationnelle des pches maritimes -acc... http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 2 sur 15 08/01/2014 14:05  

E-Print Network (OSTI)

Expertise scientifique et gestion rationnelle des pĂŞches maritimes - acc... http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php - acc... http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 3 sur 15 08/01/2014 14:05 #12;Expertise scientifique et gestion rationnelle des pĂŞches maritimes - acc... http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php

Boyer, Edmond

464

TREMIER_ANN -accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 1 sur 4 28/11/2013 15:04  

E-Print Network (OSTI)

TREMIER_ANN - accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php2013 Author manuscript, published in " " #12;TREMIER_ANN - accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php2013 #12;TREMIER_ANN - accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php

Paris-Sud XI, Université de

465

Comment amliorer le financement et la durabilit des services publics... http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 15 sur 20 18/02/2014 11:24  

E-Print Network (OSTI)

Comment améliorer le financement et la durabilité des services publics... http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php... http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 16 sur 20 18/02/2014 11:24 #12;Comment améliorer le financement et la durabilité des services publics... http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php

Paris-Sud XI, Université de

466

Article_SAGEO_PA PISSARD_V6_Cemadocx -accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 1 sur 9 27/01/2014 10:35  

E-Print Network (OSTI)

Article_SAGEO_PA PISSARD_V6_Cemadocx - accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php - accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 2 sur 9 27_SAGEO_PA PISSARD_V6_Cemadocx - accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php

Boyer, Edmond

467

Call for projects GUYAMAZON 2013 / Contact: aird.guyamaz@ird.fr 1/6 GUYAMAZON 2013  

E-Print Network (OSTI)

-ecology - Theme 5: Renewable Energies - Theme 6: Humanities and Social Sciences related to regional challenges in Brazil, the Inter-establishment Agency for Research and Development (AIRD), the French Region of Guyana.guyamaz@ird.fr 2/6 The Inter-establishment Agency for Research and Development (AIRD), the France Embassy in Brazil

468

Geodesic Remeshing Using Front Propagation Gabriel Peyre (peyre@cmapx.polytechnique.fr)  

E-Print Network (OSTI)

Geodesic Remeshing Using Front Propagation Gabriel Peyr´e (peyre@cmapx.polytechnique.fr) CMAP modeling and processing that uses only fast geodesic computations. The basic building block, an intrinsic algo- rithm for computing geodesic centroidal tessellations, and a fast and robust method

Paris-Sud XI, Université de

469

Compartmental models of mammalian motoneurons of types S, FR and FF and their computer simulation  

Science Journals Connector (OSTI)

Mathematical models of motoneurons (MNs) of types S, FR and FF were developed based on cat MN data. Each of the three models has an initial segment, a soma and a dendritic tree. The initial segment and the soma include models of several types of ionic ... Keywords: Compartmental models, Computational model, Dendritic processing, Mathematical model, Model validation, Motoneuron, Motoneuron model

M. F. Vieira; A. F. Kohn

2007-06-01T23:59:59.000Z

470

Institut des Nanotechnologies de Lyon UMR CNRS 5270 http://inl.cnrs.fr  

E-Print Network (OSTI)

Institut des Nanotechnologies de Lyon UMR CNRS 5270 http://inl.cnrs.fr 9 February 2012 / Vol.1, No.1 / INL COMMUNICATIONS: TOOLS FOR PHOTONICS 1 Propagation of an electromagnetic lightwave through *,1 * Université de Lyon, Institut des Nanotechnologies de Lyon (INL) UMR 5270 CNRS- INSA-ECL-UCBL 1

Paris-Sud XI, Université de

471

Detection of a Large Flare in FR Cnc (=1RXS J083230.9+154940)  

E-Print Network (OSTI)

We report detection of an optical flare in the BY Draconis type star FR Cnc. The flare duration is 41 min, the amplitude is in the B band 1.02 m. It is the first flare reported for this object.

Alex Golovin; Elena Pavlenko; Yuliana Kuznyetsova; Victoria Krushevska

2007-01-29T23:59:59.000Z

472

Off-Policy Actor-Critic Thomas Degris thomas.degris@inria.fr  

E-Print Network (OSTI)

Off-Policy Actor-Critic Thomas Degris thomas.degris@inria.fr Flowers Team, INRIA, Talence, ENSTA the first actor-critic al- gorithm for off-policy reinforcement learning. Our algorithm is online work on actor-critic algorithms is lim- ited to the on-policy setting and does not take advantage

Paris-Sud XI, Université de

473

ISSN0249-6399ISRNINRIA/RR--434--FR+ENG Project-Team PANAMA  

E-Print Network (OSTI)

ISSN0249-6399ISRNINRIA/RR--434--FR+ENG RESEARCH REPORT N° 434 March 2013 Project-Team PANAMA Genre Vincent Project-Team PANAMA Research Report n° 434 -- March 2013 -- 26 pages Abstract: In this work we

Paris-Sud XI, Université de

474

www.cnrs.fr COMMUNIQU DE PRESSE NATIONAL I PARIS I 4 JUILLET 2011  

E-Print Network (OSTI)

Franceville au Gabon, et en collaboration avec d'autres organismes4, a montré la présence de Plasmodium international de recherches médicales de Franceville au Gabon, IRD, Université de Montpellier, Université de la; www.cnrs.fr Le cercopithèque, Cercopithecus nictitans © Jean-Louis Albert, CIRMF, Gabon Bibliographie

475

de recherche ISSN0249-6399ISRNINRIA/RR--7549--FR+ENG  

E-Print Network (OSTI)

: Distributed and High Performance Computing ´Equipe-Projet GRAAL Rapport de recherche n° 7549 -- February 2011apport de recherche ISSN0249-6399ISRNINRIA/RR--7549--FR+ENG Distributed and High Performance Computing INSTITUT NATIONAL DE RECHERCHE EN INFORMATIQUE ET EN AUTOMATIQUE Constructing elimination trees

476

Power-law cosmic expansion in f(R) gravity models  

E-Print Network (OSTI)

We show that within the class of f(R) gravity theories, FLRW power-law perfect fluid solutions only exist for R^n gravity. This significantly restricts the set of exact cosmological solutions which have similar properties to what is found in standard General Relativity.

Naureen Goheer; Julien Larena; Peter K. S. Dunsby

2009-06-21T23:59:59.000Z

477

First observation of high spin states and isomeric decay in 210Fr  

Science Journals Connector (OSTI)

The first observation of the prompt and the delayed ? transitions involving the high spin states in 210Fr is reported. The decay of the high spin states and the isomeric levels of 210Fr, identified for the first time from the known sequence of low-lying transitions found earlier in the ? decay of 214Ac, were studied. High spin states of the doubly-odd 210Fr, which were produced by the fusion evaporation reaction 197Au (16O, xn) 213?xFr, were populated and the subsequent emitted ? rays were detected through the high-sensitivity germanium clover detector array INGA. The level scheme up to yrast levels of 5.3 MeV excitation energy and ?20? angular momentum could be established for the first time through ??, ???T coincidence, and DCO ratio measurements. A new low-lying isomeric transition at E?= 203(2) keV was observed. The half-life was measured to be T1/2= 41(2) ns. The measured half-life was compared with the corresponding single-particle estimate, based on the level scheme obtained from the experiment.

D. Kanjilal; S. Saha; S. Bhattacharya; A. Goswami; R. Kshetri; R. Raut; S. Muralithar; R. P. Singh; G. Mukherjee; B. Mukherjee

2011-12-27T23:59:59.000Z

478

Decay of 201–203Ra and 200–202Fr  

Science Journals Connector (OSTI)

Decay properties of the neutron-deficient nuclides 201–203Ra and 200–202Fr were investigated using ?- and ?-decay spectroscopy. The nuclei were produced in fusion-evaporation reactions of 56Fe projectiles with enriched 147Sm and 149Sm targets at the velocity filter SHIP at GSI in Darmstadt (Germany). The ? decay from the (3/2?) state in 201Ra was identified with an energy E?=7842(12) keV and half-life T1/2=8?4+40 ms. Ambiguous decay properties for 202Ra from previous measurements were clarified by remeasuring with significantly improved precision, resulting in values of E?=7722(7) keV and T1/2=3.8?0.8+1.3 ms. New short-lived isomeric states were identified in 200Fr and 201Fr with half-lives of 0.6?0.2+0.5 ?s and 0.7?0.2+0.5 ?s, respectively. A tentative spin and parity of 13/2+ were assigned to the latter. One event attributed to ?-delayed fission of 200Fr was observed.

Z. Kalaninová; S. Antalic; A. N. Andreyev; F. P. Heßberger; D. Ackermann; B. Andel; L. Bianco; S. Hofmann; M. Huyse; B. Kindler; B. Lommel; R. Mann; R. D. Page; P. J. Sapple; J. Thomson; P. Van Duppen; M. Venhart

2014-05-12T23:59:59.000Z

479

Nonlinear magneto-optic effects in optically dense Rb vapor  

E-Print Network (OSTI)

Dr. Andrey B. Matsko, whose enthusiasm, talent and energy inspired most of the ideas described in this dissertation, and who taught me what it takes to be a scientist. My special appreciation is for Dr. Vladimir A. Sautenkov and Vladimir L..., physical and computer support and in- spiration. vi TABLE OF CONTENTS CHAPTER Page I INTRODUCTION : : : : : : : : : : : : : : : : : : : : : : : : : : 1 A. Goals and motivation . . . . . . . . . . . . . . . . . . . . . 1 B. Review of coherence effects...

Novikova, Irina Borisovna

2004-09-30T23:59:59.000Z

480

RB Report No. 263 Danish Atomic Energy Commission  

E-Print Network (OSTI)

-elastic Aspects of the Cells 29 V. Elementary Analysis of the Electric Circuit 38 VL Determination of the Thermal designs, as a resistance ther- mometer, which makes it possible to register its temperature versus time

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


481

Facility Representative Program ID Selects FR of the Year  

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

Facility Representative Program ID Selects Facility Representative Program ID Selects FR of the Year John Martin DOE-ID Facility Representative John Martin DOE-ID Facility Representative of the Year. John Martin was selected as DOE-ID's Facility Representative of the Year and the office's nominee for the 2007 DOE Facility Representative of the Year Award. John was selected from an exceptional field of candidates to represent DOE-ID at the Facility Representative Annual Workshop in Las Vegas this May. Each year the Department of Energy recognizes the Facility Representative whose achievements during the calendar year are most exemplary. A panel of senior personnel representing the Office of Health, Safety and Security (HSS) National Nuclear Security Administration (NNSA), Environmental Management (EM), Science (SC), Nuclear Energy (NE) and at least five

482

EA-1942-FERC-NOI-FR-2012.pdf  

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

1 Federal Register 1 Federal Register / Vol. 77, No. 189 / Friday, September 28, 2012 / Notices 1 The appendices referenced in this notice are not being printed in the Federal Register. Copies of appendices were sent to all those receiving this notice in the mail and are available at www.ferc.gov using the link called ''eLibrary'' or from the Commission's Public Reference Room, 888 First Street NE., Washington, DC 20426, or call (202) 502-8371. For instructions on connecting to eLibrary, refer to the last page of this notice. Dated: September 21, 2012. Nathaniel J. Davis, Sr., Deputy Secretary. [FR Doc. 2012-23943 Filed 9-27-12; 8:45 am] BILLING CODE 6717-01-P DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. PF12-16-000] Dominion Cove Point LNG, LP; Notice

483

Microsoft Word - 73FR72036_UC signed 1  

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

V V E R S I T Y O F C A L I F O R N I A BERKELEY * DAVIS * IRVINE * LOS ANGELES * MERCED * RIVERSIDE * SAN DIEGO * SAN FRANCISCO SANTA BARBARA * SANTA CRUZ OFFICE OF THE PROVOST AND EXECUTIVE VICE PRESIDENT - ACADEMIC AFFAIRS OFFICE OF TECHNOLOGY TRANSFER 1111 Franklin Street, 5 th Floor Oakland, California 94607-5200 Web Site: www.ucop.edu/ott/ Tel: (510) 587-6000 Fax: (510) 587-6090 January 23, 2009 Submitted electronically to GC-62@hq.doe.gov Office of the Assistant General Counsel for Technology Transfer and Intellectual Property U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 Attn: Technology Transfer Questions Subject: Notice of Inquiry: Technology Transfer Practices at Department of Energy (DOE) Laboratories (73 FR 72036)

484

Recoil-decay tagging study of 205Fr  

Science Journals Connector (OSTI)

The nucleus 205Fr has been studied through ?-ray and electron spectroscopy using the recoil-decay tagging technique. The resulting level scheme presents a spherical structure built on the 9/2? ground state and a rotational structure on top of a short-lived isomer. The isomer, with a spin and parity of 13/2+ and a half-life of 80(20) ns, de-excites by an M2 transition directly to the 9/2? ground state. Another, longer-lived, isomer, with a half-life of 1.15(4) ms, has also been found and assigned a spin and parity of 1/2+. Transitions populating and de-exciting this isomer have been observed as well.

U. Jakobsson; J. Uusitalo; S. Juutinen; M. Leino; T. Enqvist; P. T. Greenlees; K. Hauschild; P. Jones; R. Julin; S. Ketelhut; P. Kuusiniemi; M. Nyman; P. Peura; P. Rahkila; P. Ruotsalainen; J. Sarén; C. Scholey; J. Sorri

2012-01-12T23:59:59.000Z

485

The Periodic Table of Elements C  

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

Atomic Number Chemical Symbol Atomic Weight Chemical Name = Solid at room temperature = Liquid at room temperature = Gas at room temperature = Radioactive = Artificially Made KEY METALS NON-METALS 12.011 http://education.jlab.org/ Last revised on April 3, 2013 [294] H Li Na K Be Mg Ca Sc Ti Rb Cs Fr Sr Y Ba Ra Zr Hf Rf V Nb Ta Db Cr Mo W Sg Mn Tc Re Bh Fe Ru Os Hs Co Rh Ir Mt Ni Pd Pt Ds Cu Ag Au Rg Zn Cd Hg Cn Ga In Tl Uut Ge Sn Pb Fl As Sb Bi Uup Se Te Po Lv Br I At Uus Kr Xe Rn Uuo La Ac Ce Th Pr Pa Nd U Pm Np Sm Pu Eu Am Gd Cm Tb Bk Dy Cf Ho Es Er Fm Tm Md Yb Yb No Lu Lr B Al C Si N P O S F Cl Ne He Ar HYDROGEN LITHIUM SODIUM POTASSIUM BERYLLIUM MAGNESIUM CALCIUM SCANDIUM TITANIUM RUBIDIUM CESIUM FRANCIUM STRONTIUM YTTRIUM BARIUM RADIUM ZIRCONIUM HAFNIUM RUTHERFORDIUM VANADIUM NIOBIUM TANTALUM DUBNIUM CHROMIUM MOLYBDENUM TUNGSTEN SEABORGIUM MANGANESE TECHNETIUM RHENIUM BOHRIUM IRON RUTHENIUM OSMIUM HASSIUM

486

The Periodic Table of Elements C  

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

.011 .011 Atomic Number Chemical Symbol Atomic Weight Chemical Name = Solid at room temperature = Liquid at room temperature = Gas at room temperature = Radioactive = Artificially Made KEY METALS NON-METALS http://education.jlab.org/ Last revised on April 3, 2013 [294] H Li Na K Be Mg Ca Sc Ti Rb Cs Fr Sr Y Ba Ra Zr Hf Rf V Nb Ta Db Cr Mo W Sg Mn Tc Re Bh Fe Ru Os Hs Co Rh Ir Mt Ni Pd Pt Ds Cu Ag Au Rg Zn Cd Hg Cn Ga In Tl Uut Ge Sn Pb Fl As Sb Bi Uup Se Te Po Lv Br I At Uus Kr Xe Rn Uuo La Ac Ce Th Pr Pa Nd U Pm Np Sm Pu Eu Am Gd Cm Tb Bk Dy Cf Ho Es Er Fm Tm Md Yb Yb No Lu Lr B Al C Si N P O S F Cl Ne He Ar HYDROGEN LITHIUM SODIUM POTASSIUM BERYLLIUM MAGNESIUM CALCIUM SCANDIUM TITANIUM RUBIDIUM CESIUM FRANCIUM STRONTIUM YTTRIUM BARIUM RADIUM ZIRCONIUM HAFNIUM RUTHERFORDIUM VANADIUM NIOBIUM TANTALUM DUBNIUM CHROMIUM MOLYBDENUM TUNGSTEN SEABORGIUM MANGANESE TECHNETIUM RHENIUM BOHRIUM IRON RUTHENIUM OSMIUM HASSIUM COBALT

487

AtomicNuclear Properties  

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

HTML_PAGES HTML_PAGES This AtomicNuclearProperties page is under intermittent development. Suggestions and comments are welcome. Please report errors. Chemical elements: For entries in red, a pull-down menu permits selection of the physical state. Cryogenic liquid densties are at the boiling point at 1 atm. 0n 1Ps 1H 2He 3Li 4Be 5B 6C 7N 8O 9F 10Ne 11Na 12Mg 13Al 14Si 15P 16S 17Cl 18Ar 19K 20Ca 21Sc 22Ti 23V 24Cr 25Mn 26Fe 27Co 28Ni 29Cu 30Zn 31Ga 32Ge 33As 34Se 35Br 36Kr 37Rb 38Sr 39Y 40Zr 41Nb 42Mo 43Tc 44Ru 45Rh 46Pd 47Ag 48Cd 49In 50Sn 51Sb 52Te 53I 54Xe 55Cs 56Ba 57La 72Hf 73Ta 74W 75Re 76Os 77Ir 78Pt 79Au 80Hg 81Tl 82Pb 83Bi 84Po 85At 86Rn 87Fr 88Ra 89Ac 104Rf 105Db 106Sg 107Bh 108Hs 109Mt 110Ds 111Rg 112 113 114 115 116 mt 118

488

Hydrogen production by steam reforming of simulated liquefied natural gas (LNG) over mesoporous nickel–M–alumina (M = Ni, Ce, La, Y, Cs, Fe, Co, and Mg) aerogel catalysts  

Science Journals Connector (OSTI)

Mesoporous nickel–M–alumina aerogel catalysts (denoted as NiMAE) with different second metal (M = Ni, Ce, La, Y, Cs, Fe, Co, and Mg) were prepared by a single-step sol–gel method and a subsequent CO2 supercritical drying method. The effect of second metal of mesoporous nickel–M–alumina aerogel catalysts on their physicochemical properties and catalytic activity for steam reforming of simulated liquefied natural gas (LNG) was investigated. Textural and chemical properties of NiMAE catalysts were strongly influenced by the identity of second metal. Nickel species were highly dispersed on the surface of NiMAE catalysts through the formation of nickel aluminate phase. In the steam reforming of LNG, both LNG conversion and hydrogen yield decreased in the order of NiLaAE > NiCeAE > NiYAE > NiCsAE > NiNiAE > NiFeAE > NiCoAE > NiMgAE. Average nickel diameter of NiMAE catalysts was well correlated with LNG conversion and hydrogen yield over the catalysts. Among the catalysts tested, NiLaAE catalyst exhibited the best catalytic performance due to its smallest average nickel diameter. Furthermore, NiLaAE catalyst exhibited a strong capability of facilitating heat and mass transfer of reactant and product during the steam reforming of LNG. Water–gas shift reaction governed the steam reforming reaction over NiLaAE catalyst under the steam-rich reaction condition (steam/carbon > 2).

Jeong Gil Seo; Min Hye Youn; Yongju Bang; In Kyu Song

2011-01-01T23:59:59.000Z

489

Classical Tests of General Relativity: Probing Topologically Charged Black Holes on Brane Worlds in f(R) Bulk  

E-Print Network (OSTI)

The perihelion precession, the deflection of light, and the radar echo delay are classical tests of General Relativity here used to probe brane world topologically charged black holes in a f(R) bulk and to constrain the parameter that arises from the Shiromizu-Maeda-Sasaki procedure applied to a f(R) bulk as well. The existing Solar system observational data constrain the possible values of the tidal charge parameter and the effective cosmological constant including f(R) brane world effects. We show that the observational/experimental data for both perihelion precession and radar echo delay make the black hole space of parameters to be more strict than the ones for the Dadhich, Maartens, Papadopoulos and Rezania (DMPR) black hole geometry. Furthermore, the deflection of light constrains the tidal charge parameter similarly as the DMPR black holes due to a peculiarity in the equation of motion.

Roldao da Rocha; A. M. Kuerten

2014-07-08T23:59:59.000Z

490

Further Results on Event-Based PID Controller Sylvain Durand and Nicolas Marchand  

E-Print Network (OSTI)

Further Results on Event-Based PID Controller Sylvain Durand and Nicolas Marchand Abstract, Grenoble, France, sylvain.durand@inrialpes.fr N. Marchand is with NeCS Project-Team, INRIA - GIPSA-lab - CNRS, Grenoble, France, nicolas.marchand@gipsa-lab.inpg.fr surements and a constant control law over

Paris-Sud XI, Université de

491

Fast Predictive Control of Micro Controller's Energy-Performance Sylvain Durand and Nicolas Marchand  

E-Print Network (OSTI)

and Nicolas Marchand Abstract-- A two voltage level electronic device is interesting because the clock-Team, INRIA - GIPSA-lab - CNRS, Grenoble, France, sylvain.durand@inrialpes.fr N. Marchand is with NeCS Project-Team, INRIA - GIPSA-lab - CNRS, Grenoble, France, nicolas.marchand@gipsa-lab.inpg.fr critical path (the

Paris-Sud XI, Université de

492

05/08/2011 12:30Pour la Science -Actualit -Les mles obsoltes Page 1 of 2http://www.pourlascience.fr/ewb_pages/a/actualite-les-males-obsoletes-27571.php  

E-Print Network (OSTI)

.pourlascience.fr/ewb_pages/a/actualite-les-males-obsoletes-27571.php © V. Cavale Une cochenille australienne (Icerya purchasi). POUR EN SAVOIR PLUS A. Gardner et Lhttp://www.pourlascience.fr/ewb_pages/a/actualite-les-males-obsoletes-27571.php Réagir à cet article

Gardner, Andy

493

Renaud_Eddy_Article -accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 1 sur 15 28/01/2014 15:30  

E-Print Network (OSTI)

Renaud_Eddy_Article - accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php Manuscrit auteur, publié dans "Efficient 2013, Paris : France (2013)" #12;Renaud_Eddy_Article - accede_document.php http://cemadoc.irstea.fr/exl-php/util/documents/accede_document.php 2 sur 15 28/01/2014 15

Boyer, Edmond

494

SA-IGA team DIS Images Signal Department Signal and Automatic for dIaGnosis and surveillAnce http:/www.gipsa-lab.grenoble-inp.fr  

E-Print Network (OSTI)

.martin@gipsa-lab.grenoble-inp.fr Corinne MAILHES, Tel. 33 (0)5 34 32 22 37 corinne.mailhes@enseeiht.fr The production energy of wind farm is becoming more and more important in several countries. Its impact on the electrical grid grows every day, at the country and continental grid scale. The economic value of the wind farm does not only reside in the amount

Dobigeon, Nicolas

495

Half-life of Fr221 in Si and Au at 4 K and at millikelvin temperatures  

Science Journals Connector (OSTI)

The half-life of the ?-decaying nucleus Fr221 was determined in different environments, that is, embedded in Si at 4 K, and embedded in Au at 4 K and about 20 mK. No differences in half-life for these different conditions were observed within 0.1%. Furthermore, we quote a value for the absolute half-life of Fr221 of t1/2=286.1(10) s that is of comparable precision to the most precise value available in the literature.

F. Wauters; B. Verstichel; M. Breitenfeldt; V. De Leebeeck; V. Yu. Kozlov; I. Kraev; S. Roccia; G. Soti; M. Tandecki; E. Traykov; S. Van Gorp; D. Zákoucký; N. Severijns

2010-12-27T23:59:59.000Z

496

MHK Projects/SEAREV Pays de la Loire FR | Open Energy Information  

Open Energy Info (EERE)

SEAREV Pays de la Loire FR SEAREV Pays de la Loire FR < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":47.7633,"lon":-0.32997,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

497

DEPARTMENT OF ENERGY EERE PROJECT MANAGEMENT CENTER NEPA DEl'FR?ITNATION  

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

DEl'FR?ITNATION DEl'FR?ITNATION RECIPIENT:Vermont Sustainable Jobs Fund PROJECT TITLE: Vermont Biofuels Initiative: Ekolott Farm Page 1 of2 STATE: VT Funding Opportunity Announcement Number Procurement Instrument Number NEPA Control Number CIO Number DE-FG36-08G088182 GFO-G088182'{)33 G088182 Based on my nview orlbe Information concerning the proposed action, as NEPA Compliance Officer (authorized under DOE Order45l.1A),1 have made the follo wing determination: ex, EA, EIS APPENDIX AND NUMBER: Description: 85.1 ActIOns to conserve energy, demonstrate potential energy conservation, and promote energy-efficiency that do not increase the Indoor concentratIOns of potentially harmful substances. These actions may involve finanCial and technical aSSistance to Individuals (such as builders, owners, consultants, designers), organIzations (such as utilities), and state

498

Nuclear Safety Management, Final Rule amending 10 CFR Part 830 (66 FR  

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

Management, Final Rule amending 10 CFR Part 830 (66 Management, Final Rule amending 10 CFR Part 830 (66 FR 1810), Federal Register (Fed Reg), 1/10/2001 Nuclear Safety Management, Final Rule amending 10 CFR Part 830 (66 FR 1810), Federal Register (Fed Reg), 1/10/2001 SUMMARY: The Department of Energy (DOE) adopts, with minor changes, the interim final rule published on October 10, 2000, to amend the DOE Nuclear Safety Management regulations. EFFECTIVE DATE: This final rule is effective on February 9, 2001. FOR FURTHER INFORMATION CONTACT: Richard Black, Director, Office of Nuclear and Facility Safety Policy, 270CC, Department of Energy, 19901 Germantown Road, Germantown, MD 20874; telephone: 301-903-3465; email: Richard.Black@eh.doe.gov SUPPLEMENTARY INFORMATION: I. Introduction and Summary On October 10, 2000, the Department of Energy (DOE) published an

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The generalized second law of thermodynamics for interacting $f(R)$ gravity  

E-Print Network (OSTI)

We examine the validity of the generalized second law (GSL) of gravitational thermodynamics in the context of interacting $f(R)$ gravity. We take into account that the boundary of the universe to be confined by the dynamical apparent horizon in a flat FRW universe. We study the effective equation of state, deceleration parameter and GSL in this interaction-framework. We find that the evolution of the total entropy increases through the interaction term. As a example, we consider a $f(R)$ gravity with a power-law dependence on the curvature $R$. Here, we find exact solutions for a model in which the interaction term is related to the total energy density of matter.

Herrera, Ramon

2014-01-01T23:59:59.000Z

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