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1

Using Henry's Constant for Determining the Amount of Isoprene in the Liquid Phase The amount of isoprene in the gas phase (mols)1.  

E-Print Network (OSTI)

pressure 101,000 (Pa)2. Volume of the liquid phase3. Things you need to know Math Amount of isoprene in gas = ideal gas constant 8.314 J mol-1 K-1 T = temperature of liquid phase units °K (which is 273.1 + °C) CUsing Henry's Constant for Determining the Amount of Isoprene in the Liquid Phase The amount

Last, Robert L.

2

J. Mol. Biol. (1996) 264, 11641179 How to Derive a Protein Folding Potential? A New  

E-Print Network (OSTI)

fna 1mol 1stf 1gmp 1frd 1hsb 1ida 1plc 1aya 1onc 1sha 1fus 1psp 1fdd 256b 1acx 1bet 1fkb 1pal 2sic 1

Mirny, Leonid

3

Search for the rare decays Bs -> mu+ mu- and B0 -> mu+ mu-  

E-Print Network (OSTI)

A search for the decays Bs -> mu+ mu- and B0 -> mu+ mu- is performed with 0.37 fb^-1 of pp collisions at sqrt{s} = 7 TeV collected by the LHCb experiment in 2011. The upper limits on the branching fractions are BR (Bs -> mu+ mu-) mu+ mu-) mu+ mu-) mu+ mu-) < 3.2 x 10^-9 at 95% confidence level.

LHCb Collaboration; R. Aaij; C. Abellan Beteta; B. Adeva; M. Adinolfi; C. Adrover; A. Affolder; Z. Ajaltouni; J. Albrecht; F. Alessio; M. Alexander; G. Alkhazov; P. Alvarez Cartelle; A. A. Alves Jr; S. Amato; Y. Amhis; J. Anderson; R. B. Appleby; O. Aquines Gutierrez; F. Archilli; L. Arrabito; A. Artamonov; M. Artuso; E. Aslanides; G. Auriemma; S. Bachmann; J. J. Back; D. S. Bailey; V. Balagura; W. Baldini; R. J. Barlow; C. Barschel; S. Barsuk; W. Barter; A. Bates; C. Bauer; Th. Bauer; A. Bay; I. Bediaga; S. Belogurov; K. Belous; I. Belyaev; E. Ben-Haim; M. Benayoun; G. Bencivenni; S. Benson; J. Benton; R. Bernet; M. -O. Bettler; M. van Beuzekom; A. Bien; S. Bifani; T. Bird; A. Bizzeti; P. M. Bjrnstad; T. Blake; F. Blanc; C. Blanks; J. Blouw; S. Blusk; A. Bobrov; V. Bocci; A. Bondar; N. Bondar; W. Bonivento; S. Borghi; A. Borgia; T. J. V. Bowcock; C. Bozzi; T. Brambach; J. van den Brand; J. Bressieux; D. Brett; M. Britsch; T. Britton; N. H. Brook; H. Brown; A. Bchler-Germann; I. Burducea; A. Bursche; J. Buytaert; S. Cadeddu; O. Callot; M. Calvi; M. Calvo Gomez; A. Camboni; P. Campana; A. Carbone; G. Carboni; R. Cardinale; A. Cardini; L. Carson; K. Carvalho Akiba; G. Casse; M. Cattaneo; Ch. Cauet; M. Charles; Ph. Charpentier; N. Chiapolini; K. Ciba; X. Cid Vidal; G. Ciezarek; P. E. L. Clarke; M. Clemencic; H. V. Cliff; J. Closier; C. Coca; V. Coco; J. Cogan; P. Collins; A. Comerma-Montells; F. Constantin; G. Conti; A. Contu; A. Cook; M. Coombes; G. Corti; G. A. Cowan; R. Currie; B. D'Almagne; C. D'Ambrosio; P. David; P. N. Y. David; I. De Bonis; S. De Capua; M. De Cian; F. De Lorenzi; J. M. De Miranda; L. De Paula; P. De Simone; D. Decamp; M. Deckenhoff; H. Degaudenzi; M. Deissenroth; L. Del Buono; C. Deplano; D. Derkach; O. Deschamps; F. Dettori; J. Dickens; H. Dijkstra; P. Diniz Batista; F. Domingo Bonal; S. Donleavy; F. Dordei; P. Dornan; A. Dosil Surez; D. Dossett; A. Dovbnya; F. Dupertuis; R. Dzhelyadin; A. Dziurda; S. Easo; U. Egede; V. Egorychev; S. Eidelman; D. van Eijk; F. Eisele; S. Eisenhardt; R. Ekelhof; L. Eklund; Ch. Elsasser; D. Elsby; D. Esperante Pereira; L. Estve; A. Falabella; E. Fanchini; C. Frber; G. Fardell; C. Farinelli; S. Farry; V. Fave; V. Fernandez Albor; M. Ferro-Luzzi; S. Filippov; C. Fitzpatrick; M. Fontana; F. Fontanelli; R. Forty; M. Frank; C. Frei; M. Frosini; S. Furcas; A. Gallas Torreira; D. Galli; M. Gandelman; P. Gandini; Y. Gao; J-C. Garnier; J. Garofoli; J. Garra Tico; L. Garrido; D. Gascon; C. Gaspar; N. Gauvin; M. Gersabeck; T. Gershon; Ph. Ghez; V. Gibson; V. V. Gligorov; C. Gbel; D. Golubkov; A. Golutvin; A. Gomes; H. Gordon; M. Grabalosa Gndara; R. Graciani Diaz; L. A. Granado Cardoso; E. Graugs; G. Graziani; A. Grecu; E. Greening; S. Gregson; B. Gui; E. Gushchin; Yu. Guz; T. Gys; G. Haefeli; C. Haen; S. C. Haines; T. Hampson; S. Hansmann-Menzemer; R. Harji; N. Harnew; J. Harrison; P. F. Harrison; J. He; V. Heijne; K. Hennessy; P. Henrard; J. A. Hernando Morata; E. van Herwijnen; E. Hicks; K. Holubyev; P. Hopchev; W. Hulsbergen; P. Hunt; T. Huse; R. S. Huston; D. Hutchcroft; D. Hynds; V. Iakovenko; P. Ilten; J. Imong; R. Jacobsson; A. Jaeger; M. Jahjah Hussein; E. Jans; F. Jansen; P. Jaton; B. Jean-Marie; F. Jing; M. John; D. Johnson; C. R. Jones; B. Jost; M. Kaballo; S. Kandybei; M. Karacson; T. M. Karbach; J. Keaveney; I. R. Kenyon; U. Kerzel; T. Ketel; A. Keune; B. Khanji; Y. M. Kim; M. Knecht; P. Koppenburg; A. Kozlinskiy; L. Kravchuk; K. Kreplin; M. Kreps; G. Krocker; P. Krokovny; F. Kruse; K. Kruzelecki; M. Kucharczyk; T. Kvaratskheliya; V. N. La Thi; D. Lacarrere; G. Lafferty; A. Lai; D. Lambert; R. W. Lambert; E. Lanciotti; G. Lanfranchi; C. Langenbruch; T. Latham; C. Lazzeroni; R. Le Gac; J. van Leerdam; J. -P. Lees; R. Lefvre; A. Leflat; J. Lefranois; O. Leroy; T. Lesiak; L. Li; L. Li Gioi; M. Lieng; M. Liles; R. Lindner; C. Linn; B. Liu; G. Liu; J. H. Lopes; E. Lopez Asamar; N. Lopez-March; H. Lu; J. Luisier; A. Mac Raighne; F. Machefert; I. V. Machikhiliyan; F. Maciuc; O. Maev; J. Magnin; S. Malde; R. M. D. Mamunur; G. Manca; G. Mancinelli; N. Mangiafave; U. Marconi; R. Mrki; J. Marks; G. Martellotti; A. Martens; L. Martin; A. Martn Snchez; D. Martinez Santos; A. Massafferri; Z. Mathe; C. Matteuzzi; M. Matveev; E. Maurice; B. Maynard; A. Mazurov; G. McGregor; R. McNulty; C. Mclean; M. Meissner; M. Merk; J. Merkel; R. Messi; S. Miglioranzi; D. A. Milanes; M. -N. Minard; J. Molina Rodriguez; S. Monteil; D. Moran; P. Morawski; R. Mountain; I. Mous; F. Muheim; K. Mller; R. Muresan; B. Muryn; B. Muster; M. Musy; J. Mylroie-Smith; P. Naik; T. Nakada; R. Nandakumar; I. Nasteva; M. Nedos; M. Needham; N. Neufeld; C. Nguyen-Mau; M. Nicol; V. Niess; N. Nikitin; A. Nomerotski; A. Novoselov; A. Oblakowska-Mucha; V. Obraztsov; S. Oggero; S. Ogilvy; O. Okhrimenko; R. Oldeman; M. Orlandea

2011-12-07T23:59:59.000Z

4

mu+-mu? colliders: possibilities and challenges  

SciTech Connect

The current status of the mu+-mu? collider concept is reviewed and discussed. In a reference scenario, a high-intensity pulsed proton accelerator (of K-factory class) produces large numbers of secondary pi's in a nuclear target, which produce muons by decay. The muons are collected and cooled (by "ionization cooling") to form high-intensity bunches that are accelerated to high-energy collisions. High-luminosity mu+-mu? and mu?-p colliders at TeV or higher energy scales may be possible. Challenges in implementing the scenario are described. Possible variations in muon production, accumulation, and collisions are discussed; further innovations and improvements are encouraged.

David Neuffer

1994-10-01T23:59:59.000Z

5

MU-CAT  

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

Home Advanced Photon Source Advanced Photon Source User Activity Report MU-CAT, Midwest Universities Collaborative Access Team 6-ID The Advanced Photon Source is an...

6

Evidence for the Decay Sigma+ -> p mu+ mu-  

E-Print Network (OSTI)

We report the first evidence for the decay Sigma+ -> p mu+ mu- from data taken by the HyperCP experiment(E871) at Fermilab. Based on three observed events, the branching ratio is B(Sigma+ -> p,mu+,mu-) = [8.6 +6.6,-5.4(stat) +/-5.5(syst)] x 10**-8. The narrow range of dimuon masses may indicate that the decay proceeds via a neutral intermediate state, Sigma+ -> p P0, P0 -> mu+ mu-, with a P0 mass of 214.3 +/- 0.5 MeV/c**2 and branching ratio B(Sigma+ -> p P0; P0 -> mu+ mu-) = [3.1 +2.4,-1.(stat) +/-1.5(syst)] x 10**-8.

H. K. Park; R. A. Burnstein; A. Chakravorty; Y. C. Chen; W. S. Choong; K. Clark; E. C. Dukes; C. Durandet; J. Felix; Y. Fu; G. Gidal; H. R. Gustafson; T. Holmstrom; M. Huang; C. James; C. M. Jenkins; T. Jones; D. M. Kaplan; L. M. Lederman; N. Leros; M. J. Longo; F. Lopez; L. C. Lu; W. Luebke; K. B. Luk; K. S. Nelson; J. -P. Perroud; D. Rajaram; H. A. Rubin; J. Volk; C. G. White; S. L. White; P. Zyla

2005-01-07T23:59:59.000Z

7

Study of Bs->mu+mu- in CMS  

E-Print Network (OSTI)

We present a Monte Carlo simulation study of measuring the rare leptonic decay Bs->mu+mu- with the CMS experiment at the LHC. The study is based on a full detector simulation for signal and background events. We discuss the high-level trigger algorithm and the offline event selection.

Urs Langenegger

2006-10-13T23:59:59.000Z

8

K+ -> pi+ mu+ mu- in E865 at BNL  

E-Print Network (OSTI)

Preliminary values for the K+ -> pi+ mu+ mu- branching ratio and form factor are reported, based on 400 events, a factor of 2 more in total events and 100 times the present world sample of fully reconstructed events. The results are consistent with previous results on the pi+ e+ e- mode. However, the relatively large slope of the form factor in q^2, lambda = 0.182+/-0.01+/-0.007, required to fit the pi+ e+ e- data and to give consistency between the pi+ e+ e- and pi+ mu+ mu- branching ratios, is larger than expected in simple models of the decays. The K+ -> pi+ mu+ mu- branching ratio we find, (9.23 +/- 0.6 stat +/- 0.58 syst)x10^-8, is the most precise measurement of this mode and is approximately 3.2 sigma larger than the previous measurement. These pi+ l+ l- results are inconsistent with O(p^4) Chiral Perturbation Theory but compatible with O(p^6). Systematic studies for both modes are still in progress.

Julia A. Thompson

1999-04-25T23:59:59.000Z

9

Investigation of 5 MOL% YSZ Electrolyte for SOFC  

Science Conference Proceedings (OSTI)

Presentation Title, Investigation of 5 MOL% YSZ Electrolyte for SOFC. Author(s), Nilufer Evcimen, Ahmet Ekerim. On-Site Speaker (Planned), Nilufer Evcimen.

10

Experiment Profile: Mu2e  

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

Mu2e Mu2e NAME: Muon-to-electron conversion, or Mu2e WHAT IS THE EXPERIMENT LOOKING FOR? A muon that does not follow the traditional weak- force decay pattern into a lighter electron and two neutrinos, but converts wholly into an electron. WHAT WILL THIS TELL US ABOUT THE WORLD? * Observing Mu2e conversion would point the way to a unification of all the forces of nature controlling the interactions of matter. This unification of the four existing forces we observe today - gravity, the electromagnetic force, and the weak and strong forces - is considered Albert Einstein's dream of "grand unification. * Finding signs of this "grand unification" could explain how the universe evolved from being

11

Antiproton low-energy collisions with Ps-atoms and true muonium atoms ($\\mu^+\\mu^-$)  

E-Print Network (OSTI)

Three-charge-particle collisions with participation of ultra-slow antiprotons ($\\bar{\\rm{p}}$) is the subject of this work. Specifically we compute the total cross sections and corresponding thermal rates of the following three-body reactions: $\\bar{\\rm p}+(e^+e^-) \\rightarrow \\bar{\\rm{H}} + e^-$ and $\\bar{\\rm p}+(\\mu^+\\mu^-) \\rightarrow \\bar{\\rm{H}}_{\\mu} + \\mu^-$, where $e^-(\\mu^-)$ is an electron (muon) and $e^+(\\mu^+)$ is a positron (antimuon) respectively, $\\bar{\\rm{H}}=(\\bar{\\rm p}e^+)$ is an antihydrogen atom and $\\bar{\\rm{H}}_{\\mu}=(\\bar{\\rm p}\\mu^+)$ is a muonic antihydrogen atom, i.e. a bound state of $\\bar{\\rm{p}}$ and $\\mu^+$. A set of two-coupled few-body Faddeev-Hahn-type (FH-type) equations is numerically solved in the framework of a modified close-coupling expansion approach.

Sultanov, Renat A

2013-01-01T23:59:59.000Z

12

Constraining msugra parameters with mu->e gamma and mu-e conversion in nuclei  

E-Print Network (OSTI)

We show that, in the MSSM with msugra boundary conditions and seesaw induced neutrino masses, the values of BR(mu->e gamma) and the mu-e conversion rate in a nucleus determine the sign of mu and constrain tan beta in a model independent way.

Carlos E. Yaguna

2005-02-02T23:59:59.000Z

13

Search for NMSSM Higgs bosons in the h ---> aa ---> mu mu mu mu, mu mu tau tau channels using p anti-p collisions at s**(1/2) = 1.96-TeV  

Science Conference Proceedings (OSTI)

We report on a first search for production of the lightest neutral CP-even Higgs boson (h) in the next-to-minimal supersymmetric standard model, where h decays to a pair of neutral pseudoscalar Higgs bosons (a), using 4.2 fb{sup -1} of data recorded with the D0 detector at Fermilab. The a bosons are required to either both decay to {mu}{sup +}{mu}{sup -} or one to {mu}{sup +}{mu}{sup -} and the other to {tau}{sup +}{tau}{sup -}. No significant signal is observed, and we set limits on its production as functions of M{sub a} and M{sub h}.

Abazov, V.M.; /Dubna, JINR; Abbott, B.; /Oklahoma U.; Abolins, M.; /Michigan State U.; Acharya, B.S.; /Tata Inst.; Adams, M.; /Illinois U., Chicago; Adams, T.; /Florida State U.; Aguilo, E.; /Alberta U. /Simon Fraser U. /York U., Canada /McGill U.; Ahsan, M.; /Kansas State U.; Alexeev, G.D.; /Dubna, JINR; Alkhazov, Georgiy D.; /St. Petersburg, INP; Alton, Andrew K.; /Michigan U. /Northeastern U.

2009-05-01T23:59:59.000Z

14

Relating B_S Mixing and B_S to mu+mu- with New Physics  

Science Conference Proceedings (OSTI)

We perform a study of the standard model fit to the mixing quantities {Delta}M{sub B{sub s}}, and {Delta}{Lambda}{sub B{sub s}}/{Delta}M{sub B{sub s}} in order to bound contributions of new physics (NP) to B{sub s} mixing. We then use this to explore the branching fraction of B{sub s} {yields} {mu}{sup +}{mu}{sup -} in certain models of NP. In most cases, this constrains NP amplitudes for B{sub s} {yields} {mu}{sup +}{mu}{sup -} to lie below the standard model component.

Golowich, Eugene; /Massachusetts U., Amherst; Hewett, JoAnne; /SLAC; Pakvasa, Sandip; /Hawaii U.; Petrov, Alexey A; /Wayne State U. /Michigan U., MCTP; Yeghiyan, Gagik K; /Wayne State U.

2012-06-11T23:59:59.000Z

15

Search for B+ --> mu+ nu_mu With Inclusive Reconstruction at BaBar  

SciTech Connect

We search for the purely leptonic decay B{sup {+-}} {yields} {mu}{sup {+-}}{nu}{sub {mu}} in the full BABAR dataset, having an integrated luminosity of approximately 426 fb{sup -1}. We adopt a fully inclusive approach, where the signal candidate is identified by the highest momentum lepton in the event and the companion B is inclusively reconstructed without trying to identify its decay products. We set a preliminary upper limit on the branching fraction of {Beta}(B{sup {+-}} {yields} {mu}{sup {+-}}{nu}{sub {mu}}) < 1.3 x 10{sup -6} at the 90% confidence level, using a Bayesian approach.

Aubert, Bernard; Bona, M.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Prencipe, E.; Prudent, X.; Tisserand, V.; /Annecy, LAPP; Garra Tico, J.; Grauges, E.; /Barcelona U., ECM; Lopez, L.; Palano, Antimo; Pappagallo, M.; /Bari U. /INFN, Bari; Eigen, G.; Stugu, Bjarne; Sun, L.; /Bergen U.; Abrams, G.S.; Battaglia, M.; Brown, D.N.; Cahn, Robert N.; Jacobsen, R.G.; /LBL, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San Diego /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /INFN, Ferrara /Frascati /Genoa U. /INFN, Genoa /Harvard U. /Heidelberg U. /Humboldt U., Berlin /Imperial Coll., London /Iowa U. /Iowa State U. /Johns Hopkins U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Mainz U., Inst. Kernphys. /Manchester U. /Maryland U. /Massachusetts U., Amherst /MIT /McGill U. /Consorzio Milano Ricerche /INFN, Milan /Mississippi U. /Montreal U. /Mt. Holyoke Coll. /Napoli Seconda U. /INFN, Naples /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /Padua U. /INFN, Padua /Paris U., VI-VII /Pennsylvania U. /Perugia U. /INFN, Perugia /INFN, Pisa /Princeton U. /Banca di Roma /Frascati /Rostock U. /Rutherford /DAPNIA, Saclay /South Carolina U. /SLAC /Stanford U., Phys. Dept. /SUNY, Albany /Tennessee U. /Texas U. /Texas U., Dallas /Turin U. /INFN, Turin /Trieste U. /INFN, Trieste /Valencia U., IFIC /Victoria U. /Warwick U. /Wisconsin U., Madison

2008-08-01T23:59:59.000Z

16

The M.U.5 Computer System  

E-Print Network (OSTI)

Describes the design of the MU5 research computer, the aim of which has been to produce a high performance machine whose structure is well suited to the needs of modern high level languages. It is hoped that a computing speed improvement of about 20 over the 2-3 mu S instruction rate of ATLAS will be obtained. In the ten years which have elapsed between the ATLAS and MU5 projects, the speed of logic gates and main storage has increased by a factor of 8:1, and this will result in a commensurate increase in system performance. In order to approach the 20:1 performance target, however, it will be necessary to adopt extensive parallel processing techniques, and to incorporate data buffering systems to compensate for the disparity between processor and storage speeds. (11 refs).

Sumner, F H

1974-01-01T23:59:59.000Z

17

ATCA/muTCA for Physics  

Science Conference Proceedings (OSTI)

ATCA/{mu}TCA platforms are attractive because of the modern serial link architecture, high availability features and many packaging options. Less-demanding availability applications can be met economically by scaling back speed and redundancy. The ATCA specification was originally targeted for the Telecom industry but has gained recently a much wider user audience. The purpose of this paper is to report on present hardware and software R and D efforts where ATCA and {mu}TCA are planned, already being used or in development using selected examples for accelerator and detectors in the Physics community. It will present also the status of a proposal for physics extensions to ATCA/{mu}TCA specifications to promote inter-operability of laboratory and industry designs for physics.

Jezynski, Tomasz; /DESY; Larsen, Raymond; /SLAC; Le Du, Patrick; /Lyon, IPN

2012-06-14T23:59:59.000Z

18

Higgs boson decay to mu mubar gamma  

E-Print Network (OSTI)

The Higgs boson decay, H -> mu mubar gamma, is studied in the Standard Model at the tree and one-loop levels. It is shown that for Higgs boson masses above 110 GeV, the contribution to the radiative width from the one-loop level exceeds the contribution from the tree level, and for Higgs boson masses above 140 GeV, it even exceeds the contribution from the tree level decay H -> mu mubar. We also show that the contributions to the radiative decay width from the interference terms between the tree and one-loop diagrams are negligible.

Ali Abbasabadi; Wayne W. Repko

2000-04-17T23:59:59.000Z

19

A Typhoon Observed with the MU Radar  

Science Conference Proceedings (OSTI)

During the passage of Typhoon 8719 a 60-h continuous observation was made of the troposphere and the lower stratosphere with the MU (middle and upper atmosphere) radar. Height profiles of the wind velocity vector were measured every 2.5 min with ...

Toru Sato; Naoki Ao; Mamoru Yamamoto; Shoichiro Fukao; Toshitaka Tsuda; Susumu Kato

1991-03-01T23:59:59.000Z

20

Leptonic CP Phase in {nu}{sub {mu}}{yields}{nu}{sub {mu}} Oscillations  

Science Conference Proceedings (OSTI)

In the case of large 1-3 mixing angle as sin{sup 2} 2{theta}{sub 13}{>=}0.03, we investigate the possibility for measuring the leptonic CP phase by using only {nu}{sub {mu}}{yields}{nu}{sub {mu}} oscillations independently of {nu}{sub {mu}}{yields}{nu}{sub e} oscillations. As the result, we find that the CP phase can be measured best around the energy E = 0.43 GeV and the baseline length L = 5000 km without depending on the uncertainties of other parameters too much. In this region, the CP phase effect remains even after averaging over neutrino energy.

Kimura, Keiichi; Yoshikawa, Tadashi [Department of Physics, Nagoya University, Nagoya, 464-8602 (Japan); Takamura, Akira [Department of Mathematics, Toyota National College of Technology Eisei-cho 2-1, Toyota-shi, 471-8525 (Japan)

2008-02-21T23:59:59.000Z

Note: This page contains sample records for the topic "mu mol mol-1" 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

Lepton flavour violating Higgs Boson decays, tau --> mu gamma and B(s) --> mu+mu- in the constrained MSSM+NR with large tan beta  

E-Print Network (OSTI)

Realistic predictions are made for the rates of lepton flavour violating Higgs boson decays, tau --> mu gamma, mu --> e gamma, Bs --> mu+mu-, Bs --> tau mu and tau --> 3mu, via a top-down analysis of the Minimal Supersymmetric Standard Model(MSSM) constrained by SU(5) unification with right-handed Neutrinos and large tan beta. The third family neutrino Yukawa coupling is chosen to be of order 1, in this way our model bares a significant resemblance to supersymmetric SO(10). In this framework the large PMNS mixings result in potentially large lepton flavour violation. Our analysis predicts tau --> mu gamma and mu --> e gamma rates in the region (10^{-8}-10^{-6}) and (10^{-15}-10^{-14}) respectively. We also show that the rates for lepton flavour violating Higgs decays can be as large as 10^{-7}. The non-decoupling nature of H --> tau mu is observed which leads to its decay rate becoming comparable to that for tau --> mu gamma for large values of m_0 and M_1/2. We also find that the present bound on Bs --> mu+mu- is an important constraint on the rate of lepton flavour violating Higgs decays. The recently measured Bs-Bsbar mixing parameter Delta Ms is also investigated.

J. K. Parry

2005-10-24T23:59:59.000Z

22

R Symmetry and the Mu Problem  

E-Print Network (OSTI)

A natural origin for the mu and B parameters of weak scale supersymmetric theories is proposed, applicable to any supersymmetry breaking messenger scale between the weak and Planck scales. Although quite general, it requires supersymmetric interactions to respect an R symmetry with definite quantum numbers, and it requires some new scale of symmetry breaking. The required R symmetry distinguishes the Higgs boson from the sneutrino, preserves baryon number in operators of dimension four and five, and contains R parity so that the lightest superpartner is stable. This origin for mu works for a variety of mediation mechanisms, including gauge mediation, gaugino mediation, and boundary condition breaking of supersymmetry. In any of these mediation schemes, our mechanism leads to a real B parameter, and the supersymmetric CP problem is solved. This R symmetry may naturally arise from supersymmetric theories in higher dimensions.

Lawrence J. Hall; Yasunori Nomura; Aaron Pierce

2002-04-04T23:59:59.000Z

23

Branching ratio for a light Higgs boson to decay into. mu. /sup +/. mu. /sup -/ pairs  

SciTech Connect

We evaluate the effects of final-state interactions on the decay of a light Higgs boson to two pions. Although the formalism is completely general and can be applied to any strong-interaction decay mode of the Higgs boson, we are particularly interested in the regime where the Higgs-boson mass m/sub h/ satisfies the constraint 2m/sub ..pi../mu../sup +/..mu../sup -/ and two pions. Final-state interactions tend to enhance the two-pion mode and thus suppress the branching ratio to two muons. Since the two-muon mode is the cleanest signature for identifying the Higgs boson, it is important to obtain a good determination of this branching ratio. We find B(h..--> mu../sup +/..mu../sup -/) approx. =0/sup -2/--10/sup -1/.

Raby, S.; West, G.B.

1988-12-01T23:59:59.000Z

24

MU(& Ge-+v,  

Office of Legacy Management (LM)

fil fil MU(& Ge-+v, . !d R&arch & Development b This document consists of 6 Contract Ho. pages and - . --------------_____---. figures No.--~--of.--~~-_-copies, Series,&,, This subcontract entered into this 20 day 0fSepte~ber , 1943, by and between the University of Cliicago, a corporation not for pecuniary profit organized under the ICVS of the Stnto of Illinois, of Chicago, Illinois (hereinafter called "the Contractor") and Yiolverine Tube Divisionof Caluzet 2 Eecla Consolidated Co;-,er co, . a cor?orntion organized under the laws cf the State of l~lch~;an - of Detroit, I:ichigan --- (hersinnftcr called "the Subcontractoi"). WIEHEAS, tho Contractor has heretofore onterod into a contract v;ith the United States of America (rcprcse;!tcd by its dtlly designated

25

CP violating phases in mu-e conversion  

E-Print Network (OSTI)

Experiments are planned to improve the sensitivity of mu-e conversion from the current ~ 10^{-12} to 10^{-16} - 10^{-18}. If the muon (bound to the nucleus) could be polarised, a spin asymmetry of the final state electron is sensitive to CP violating phases on lepton flavour violating operators. This is similar to extracting phases from asymmetries in the final state spin and phase space distributions of mu to 3e and mu to e gamma.

S Davidson

2008-09-01T23:59:59.000Z

26

SPITZER 24 {mu}m IMAGES OF PLANETARY NEBULAE  

SciTech Connect

Spitzer MIPS 24 {mu}m images were obtained for 36 Galactic planetary nebulae (PNe) whose central stars are hot white dwarfs (WDs) or pre-WDs with effective temperatures of {approx}100,000 K or higher. Diffuse 24 {mu}m emission is detected in 28 of these PNe. The eight nondetections are angularly large PNe with very low H{alpha} surface brightnesses. We find three types of correspondence between the 24 {mu}m emission and H{alpha} line emission of these PNe: six show 24 {mu}m emission more extended than H{alpha} emission, nine have a similar extent at 24 {mu}m and H{alpha}, and 13 show diffuse 24 {mu}m emission near the center of the H{alpha} shell. The sizes and surface brightnesses of these three groups of PNe and the nondetections suggest an evolutionary sequence, with the youngest ones being brightest and the most evolved ones undetected. The 24 {mu}m band emission from these PNe is attributed to [O IV] 25.9 {mu}m and [Ne V] 24.3 {mu}m line emission and dust continuum emission, but the relative contributions of these three components depend on the temperature of the central star and the distribution of gas and dust in the nebula.

Chu, Y.-H.; Gruendl, Robert A.; Bilikova, Jana; Caulet, Adeline [Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 West Green Street, Urbana, IL 61801 (United States); Guerrero, Martin A. [Instituto de Astrofisica de Andalucia, CSIC. c/ Camino Bajo de Huetor 50, E-18008 Granada (Spain); Su, Kate Y. L. [Stewart Observatory, University of Arizona, Tucson, AZ 85721 (United States); Cohen, Martin [Radio Astronomy Laboratory, University of California, Berkeley, CA 94720 (United States); Parker, Quentin A. [Department of Physics, Macquarie University, Sydney, NSW 2109 (Australia); Volk, Kevin [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Chen, W.-P. [Institute of Astronomy, National Central University, Chung-Li, Taiwan (China); Hora, Joseph L. [Center for Astrophysics, 60 Garden Street, MS 65, Cambridge, MA 02138 (United States); Rauch, Thomas [Institut fuer Astronomie und Astrophysik Tuebingen (IAAT), Abteilung Astronomie, Sand 1, D-72076 Tuebingen (Germany)], E-mail: chu@astro.uiuc.edu

2009-08-15T23:59:59.000Z

27

September 2010 FAPRI-MU US Biofuels, Corn Processing,  

E-Print Network (OSTI)

September 2010 FAPRI-MU US Biofuels, Corn Processing, Distillers Grains, Fats, Switchgrass-882-4256 or the US Department of Education, Office of Civil Rights. #12;1 Overview of FAPRI-MU Biofuels, Corn listed here represent US biofuel, corn processing, distillers grains, fats, switchgrass, and corn stover

Noble, James S.

28

UNITED STATES ATOMIC ENERGY COMMISSION ASSISTANCE PROGRAM TO THE EUROCHEMIC COMPANY, MOL, BELGIUM  

SciTech Connect

The United States Atomic Energy Commission program of assistance to the European Company for the Chemical Processing of Irradiated Fuels ("Eurochemic"), Mol, Belgium, is presented. Included are: background, formation, purpose, and structure of the Company; basic design considerations and a brief description of the proposed plant; present status of the and a list of participating organizations and members. (auth)

Shank, E.M.

1958-12-31T23:59:59.000Z

29

Measurement of the branching ratio for the decay K sub L sup 0 r arrow. mu. mu  

Science Conference Proceedings (OSTI)

Concurrent with our search for the decays {ital K}{sub {ital L}}{sup 0}{r arrow}{mu}e and {ital K}{sub {ital L}}{sup 0}{r arrow}ee, we have observed 87 {ital K}{sub {ital L}}{sup 0}{r arrow}{mu}{mu} events. Normalizing this sample to the simultaneous observation of the decay {ital K}{sub {ital L}}{sup 0}{r arrow}{pi}{sup +}{pi}{sup {minus}}, we obtain the branching ratio {ital B}({ital K}{sub {ital L}}{sup 0}{r arrow}{mu}{mu}) =(5.8{plus minus}0.6(stat){plus minus}0.4 (syst)) {times}10{sup {minus}9}.

Mathiazhagan, C.; Molzon, W.R. (University of California, Irvine, California 92717 (US)); Cousins, R.D.; Konigsberg, J.; Kubic, J.; Melese, P.; Rubin, P.; Slater, W.E.; Wagner, D. (University of California, Los Angeles, California 90024); Hart, G.W.; Kinnison, W.W.; Lee, D.M.; McKee, R.J.; Milner, E.C.; Sanders, G.H.; Ziock, H.J. (Los Alamos National Laboratory, Los Alamos, New Mexico 87545); Arisaka, K.; Knibbe, P.; Urheim, J. (University of Pennsylvania, Philadelphia, Pennsylvania 19104); Axelrod, S.

1989-11-13T23:59:59.000Z

30

Fermilab Today | Experiment Profiles Archive | Mu2e  

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

Mu2e experiment will observe 10,000 times more data. HOW DOES THIS FIT INTO FERMILABS STRATEGIC PLAN? It would require minor changes to the Fermilab accelerator complex and...

31

Lepton flavour violating Higgs and tau to mu gamma  

E-Print Network (OSTI)

We update phenomenological constraints on a Two Higgs Doublet Model with lepton flavour non-conserving Yukawa couplings. We review that $\\tan \\beta$ is ambiguous in such "Type III" models, and define it from the $\\tau$ Yukawa coupling. The neutral scalars $\\phi$ could be searched for at hadron colliders in $ \\phi \\to \\tau \\bar{\\mu}$, and are constrained by the rare decay $\\tau \\to \\mu \\gamma$. The Feynman diagrams for the collider process, with Higgs production via gluon fusion, are similar to the two-loop "Barr-Zee" diagrams which contribute to $\\tau \\to \\mu \\gamma$. Some "tuning" is required to obtain a collider cross-section of order the Standard Model expectation for $\\sigma (gg \\to h_{SM} \\to \\tau^+ \\tau^-)$, while agreeing with the current bound from $\\tau \\to \\mu \\gamma$.

Sacha Davidson; Gerald Grenier

2010-01-04T23:59:59.000Z

32

Search for doubly-charged Higgs Boson production in the decay H++ H-- ---> mu+ mu+ mu- mu - with the D0 detector at s**(1/2) = 1.96-TeV  

SciTech Connect

This work presents a search for the pair production of doubly-charged Higgs Bosons in the process p{bar p} {yields} H{sup ++}H{sup --} {yields} {mu}{sup +}{mu}{sup +}{mu}{sup -}{mu}{sup -} using inclusive dimuon events. These data correspond to an integrated luminosity of about 113 pb 1 and were recorded by the D0 experiment between August 2002 and June 2003. In the absence of a signal, 95% confidence level mass limits of M(H{sub L}{sup {+-}{+-}}) > 118.6 GeV/c{sup 2} and M(H{sub R}{sup {+-}{+-}}) > 98.1 GeV/c{sup 2} are set for left-handed and right-handed doubly-charged Higgs boson, assuming 100% branching into muons and hypercharge |Y| = 2 and Yukawa coupling h{sub {mu}{mu}} > 10{sup -7}. This is the first search for doubly-charged Higgs bosons at hadron colliders. It significantly extends the previous mass limit of 100.5 GeV/c{sup 2} for a left-handed doubly-charged Higgs boson measured in the muon final states by the OPAL collaboration.

Zdrazil, Marian; /SUNY, Stony Brook

2004-01-01T23:59:59.000Z

33

The Catalysis of Nuclear Reactions by mu Mesons  

DOE Green Energy (OSTI)

In the course of a recent experiment involving the stopping of negative K mesons in a 10-inch liquid hydrogen bubble chamber, an interesting new reaction was observed to take place. The chamber is traversed by many more negative {mu} mesons than K mesons, so that in the last 75,000 photographs, approximately 2500 {mu}{sup -} decays at rest have been observed. In the same pictures, several hundred {pi}{sup -} mesons have been observed to disappear at rest, presumably by one of the ''Panofsky reactions''. For tracks longer than 10 cm, it is possible to distinguish a stopping {mu} meson from a stopping {pi} meson by comparing its curved path (in a field of 11,000 gauss) with that of a calculated template. In addition to the normal {pi}{sup -} and {mu}{sup -} stoppings, we have observed 15 cases in which what appears (from curvature measurement) to be a {mu}{sup -} meson comes to rest in the hydrogen, and then gives rise to a secondary negative particle of 1.7 cm range, which in turn decays by emitting an electron. (A 4.1-Mev {mu} meson from {pi} - {mu} decay has a range of 1.0 cm.) The energy spectrum of the electrons from these 15 secondary particles looks remarkably like that of the {mu} meson. There are four electrons in the energy range 50 to 55 Mev, and none higher; the other electrons have energies varying from 50 Mev to 13 Mev. The most convincing proof that the primary particle actually comes to rest, and does not--for example--have a large resonant cross section for scattering at a residual range of 1.7 cm, is the following: In five of the 15 special events, there is a large gap between the last bubble of the primary track and the first bubble of the secondary track. This gap is a real effect, and not merely a statistical fluctuation in the spacing of the bubbles, since in some cases the tracks form a letter X, and in another case the secondary track is parallel to the primary, but displaced transversely by about 1 mm at the end of the primary. These real gaps appear also (although perhaps less frequently) between some otherwise normal-looking {mu}{sup -} endings and the subsequent decay electron; they are thought to be the distance traveled by the small neutral mesic atom.

Alvarez, L.W.; Bradner, H.; Crawford Jr, F.S.; Crawford, J.A.; Falk-Vairant, P.; Good, M.L.; Gow, J.D.; Hosenfeld, A.R.; Solmitz, F.; Stevenson, M.L.; Ticho, H.K.; Tripp, H.D.

1956-12-10T23:59:59.000Z

34

A Hydrodynamical Approach to CMB mu-distortions  

E-Print Network (OSTI)

Spectral distortion of the cosmic microwave background provides a unique opportunity to probe primordial perturbations on very small scales by performing large-scale measurements. We discuss in a systematic and pedagogic way all the relevant physical phenomena involved in the production and evolution of the mu-type spectral distortion. Our main results agree with previous estimates (in particular we show that a recently found factor of 3/4 arises from relativistic corrections to the wave energy). We also discuss several subleading corrections such as adiabatic cooling and the effects of bulk viscosity, baryon loading and photon heat conduction. Finally we calculate the transfer function for mu-distortions between the end of the mu-era and now.

Enrico Pajer; Matias Zaldarriaga

2012-06-20T23:59:59.000Z

35

Scalar meson mediated nuclear mu-e conversion  

E-Print Network (OSTI)

We study the nuclear mu-e conversion in the general framework of the effective Lagrangian approach without referring to any specific realization of the physics beyond the standard model (SM) responsible for lepton flavor violation (LFV). We analyze the role of scalar meson exchange between the lepton and nucleon currents and show its relevance for the coherent channel of mu-e conversion. We show that this mechanism introduces modifications in the predicted mu-e conversion rates in comparison with the conventional direct nucleon mechanism, based on the contact type interactions of the nucleon currents with the LFV leptonic current. We derive from the experimental data lower limits on the mass scales of the generic LFV lepton-quark contact terms and demonstrate that they are more stringent than the similar limits existing in the literature.

Amand Faessler; Th. Gutsche; Sergey Kovalenko; V. E. Lyubovitskij; Ivan Schmidt

2005-07-04T23:59:59.000Z

36

Laser enhancement of resonance (dt. mu. ,d2e) and (dd. mu. ,d2e) (molecular) formation  

SciTech Connect

The enhancement of resonance molecular formation rates of (dt..mu..,d2e) and (dd..mu..,d2e) by strong laser irradiation have been studied. The formation rates decrease until the laser intensity reaches the order of 10/sup 8/ to 10/sup 9/ W/cm/sup 2/, and they increase substantially for the intensity range of 10/sup 10/ W/cm/sup 2/ to 10/sup 11/ W/cm/sup 2/. The (dt..mu..,d2e) formation rate using the angular frequency laser such as 11.4 x 10/sup 13/ rad/sec becomes 4 x 10/sup 10/ l/sec for the laser intensity of 3 x 10/sup 10/ W/cm/sup 2/. Further increase of laser intensity reduces the formation rate due to the mismatch of the resonance condition. The formation rate is very sensitive to the frequency of the laser and the formation rate of (dd..mu..,d2e) becomes comparable with one of (dt..mu..,d2e) for the cases of w = 22.8 x 10/sup 13/ rad/sec. For the case of dt initial molecule, there is the possibility of enhancing the formation rate by exciting the vibrational motion by laser field.

Takahashi, H.

1987-01-01T23:59:59.000Z

37

Helio Micro Utility Helio mU | Open Energy Information  

Open Energy Info (EERE)

Helio Micro Utility Helio mU Helio Micro Utility Helio mU Jump to: navigation, search Name Helio Micro Utility (Helio mU) Place Berkeley, California Zip 94710 Product Helio mU provides independent financing and risk mitigation techniques to ensure the adoption of energy management and distributed generation systems for commercial, residential, and public sector projects. Coordinates 38.748315°, -90.334929° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","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":38.748315,"lon":-90.334929,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

38

Interpreting the New Brookhaven g_mu - 2 Result  

E-Print Network (OSTI)

The latest g_mu - 2 measurement by Brookhaven confirms the earlier measurement with twice the precision. However, interpretation of the result requires specific assumptions regarding the errors in the hadronic light by light (LbL) correction and in the hadronic vacuum polarization correction. Under the assumption that the analysis on LbL correction of Knecht and Nyffeler and the revised analysis of Hayakawa and Kinoshita are valid the new BNL result implies a deviation between experiment and the standard model of 1.6 sigma -2.6 sigma depending on the estimate of the hadronic vacuum polarization correction. We revisit the g_mu - 2 constraint for mSUGRA and its implications for the direct detection of sparticles at colliders and for the search for supersymmetric dark matter in view of the new evaluation.

Utpal Chattopadhyay; Pran Nath

2002-08-01T23:59:59.000Z

39

MATEMTICOSARAGONESES Al-Mu'taman El rey gemetra de Zaragoza  

E-Print Network (OSTI)

MATEMÁTICOSARAGONESES Al-Mu'taman El rey geómetra de Zaragoza Rey de la Taifa de Zaragoza entre 1081 y 1085. Heredero del reino de su padre, Al- Muqtadir, quien construyó la Aljafería, lo perdió fue. Su principal escrito es el Kitab al-Istikmal o Libro de la perfección, sobre aritmética y

Bernués, Julio

40

SUBMILLIMETER POLARIZATION OF GALACTIC CLOUDS: A COMPARISON OF 350 {mu}m AND 850 {mu}m DATA  

Science Conference Proceedings (OSTI)

The Hertz and SCUBA polarimeters, working at 350 {mu}m and 850 {mu}m, respectively, have measured the polarized emission in scores of Galactic clouds. Of the clouds in each data set, 17 were mapped by both instruments with good polarization signal-to-noise ratios. We present maps of each of these 17 clouds comparing the dual-wavelength polarization amplitudes and position angles at the same spatial locations. In total number of clouds compared, this is a four-fold increase over previous work. Across the entire data set real position angle differences are seen between wavelengths. While the distribution of {phi}(850)-{phi}(350) is centered near zero (near-equal angles), 64% of data points with high polarization signal-to-noise (P {>=} 3{sigma}{sub p}) have |{phi}(850)-{phi}(350)| > 10 Degree-Sign . Of those data with small changes in position angle ({<=}10 Degree-Sign ) the median ratio of the polarization amplitudes is P(850)/P(350) = 1.7 {+-} 0.6. This value is consistent with previous work performed on smaller samples and models that require mixtures of different grain properties and polarization efficiencies. Along with the polarization data we have also compiled the intensity data at both wavelengths; we find a trend of decreasing polarization with increasing 850-to-350 {mu}m intensity ratio. All the polarization and intensity data presented here (1699 points in total) are available in electronic format.

Vaillancourt, John E. [SOFIA Science Center, Universities Space Research Association, NASA Ames Research Center, Moffett Field, CA 94035 (United States); Matthews, Brenda C., E-mail: jvaillancourt@sofia.usra.edu, E-mail: brenda.matthews@nrc-cnrc.gc.ca [Herzberg Institute, National Research Council of Canada, 5071 W. Saanich Road, Victoria, BC V9E 2E7 (Canada)

2012-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "mu mol mol-1" 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

Study of ttH (H -> mu mu) in the three lepton channel at sqrt(s) = 14 TeV; A Snowmass white paper  

E-Print Network (OSTI)

The H -> mu mu signature provides excellent mass resolution for Higgs bosons, and is therefore an important Higgs boson decay channel despite the small dimuon branching ratio. We present an optimization of selection criteria in a search for trilepton ttH (H -> mu mu) events, in which the top quark pair decays semi-leptonically, at a simulated High Luminosity LHC (HL-LHC) running at 14 TeV. The study is performed with 3000 fb^(-1) of simulated data with an average pileup of = 140. In this ultimate HL-LHC data set, we find that ttH (H -> mu mu) will be a very difficult signature to observe due to the very small expected signal.

Jared Vasquez; Jahred Adelman; Andrey Loginov; Paul Tipton

2013-10-03T23:59:59.000Z

42

Fusion-reaction cross section in (high-temperature). mu. -catalyzed fusion  

DOE Green Energy (OSTI)

The barrier penetration factor for the fusion reaction of ..mu..-mesic hydrogen atoms with hydrogen nuclei is studied. (MOW)

Takahashi, H.; Moats, A.

1982-06-01T23:59:59.000Z

43

Distillation of Strangelets for low initial mu/T  

E-Print Network (OSTI)

We calculate the evolution of quark-gluon-plasma droplets during the hadronization in a thermodynamical model. It is speculated that cooling as well as strangeness enrichment allow for the formation of strangelets even at very high initial entropy per baryon $S/A^{\\rm init}\\approx 500$ and low initial baryon numbers of $A_{\\rm B}^{\\rm init}\\approx 30$. It is shown that the droplet with vanishing initial chemical potential of strange quarks and a very moderate chemical potential of up/down quarks immediately charges up with strangeness. Baryon densities of $\\approx 2\\rho_0$ and strange chemical potentials of $\\mu_s>350$~MeV are reached if strangelets are stable. The importance of net--baryon and net--strangeness fluctuations for the possible strangelet formation at RHIC and LHC is emphasized.

C. Spieles; C. Greiner; H. Stoecker; J. P. Coffin

1995-08-09T23:59:59.000Z

44

availability in two different treatment implementations: (1) from  

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

availability in two different treatment implementations: (1) from availability in two different treatment implementations: (1) from seedlings exposed to 360, 550, and 700 mu mol mol(-1) CO2 in a glasshouse; and (2) from intact adults exposed to 360 and 550 mu mol mol(-1) CO2 at the Nevada Desert FACE (Free Air CO2 Enrichment) Facility. FACE and glasshouse wed-watered Larrea significantly down- regulated photosynthesis at elevated CO2, reducing maximum photosynthetic rate (A(max)), carboxylation efficiency (CE), and Rubisco catalytic sites, whereas droughted Larrea showed a differing response depending on treatment technique. A(max) and CE were lower in droughted Larrea compared with well-watered plants, and CO2 had no effect on these reduced photosynthetic parameters. However, Rubisco catalytic sites decreased in droughted Larrea at elevated CO2. Operating

45

MuCap: Muon capture on the proton to determine the pseudoscalar coupling, gp  

Science Conference Proceedings (OSTI)

The MuCap collaboration has measured the capture rate of the muon on the proton and reported its first value for the weak pseudoscalar coupling: gp 7.3{+-}1.1. To achieve 5% uncertainty on gp, many hardware upgrades were implemented for the subsequent 2006-2007 running periods. These improvements are described and the outlook for MuCap and the followup experiment, MuSun, is discussed.

Kiburg, Brendan [Department of Physics, University of Illinois at Urbana-Champaign, Urbana, IL 61801 (United States)

2009-12-17T23:59:59.000Z

46

An update for the MuCool test area  

DOE Green Energy (OSTI)

Construction of a new facility known as the MuCool Test Area (MTA) has been completed at Fermi National Accelerator Laboratory. This facility supports research in new accelerator technologies for future endeavors such as a Neutrino Factory or Muon Collider. During the summer of 2004, an initial set of tests was completed for the filling of a convection-style liquid hydrogen absorber designed by KEK. The absorber contained 6.2 liquid liters of hydrogen and was tested for a range of heating conditions to quantify the absorber's heat exchanger performance. Future work at Fermilab includes the design, construction, and installation of a forced-flow absorber to be used with other components built to investigate the properties of a muon ionization cooling channel. A Tevatron-style refrigerator/compressor building is to be operational by spring of 2006 in support of the absorber tests and also to provide 5-K helium and liquid nitrogen to a 5-T solenoid magnet, an active element of the future test apparatus. The refrigerator will be configured in such a manner as to meet the 5 K and 14-20-K helium needs of the MTA. This paper reviews the challenges and successes of the past KEK absorber tests as well as looks into the future cryogenic capabilities and intentions of the site.

Bross, A.; Cummings, M.A.; Darve, C.; Ishimoto, S.; Klebaner, A.; Martinez, A.; Norris, B.; Pei, L.; /Fermilab /KEK, Tsukuba /Northern Illinois U.

2006-01-01T23:59:59.000Z

47

Cryogenics for the MuCool Test Area (MTA)  

DOE Green Energy (OSTI)

MuCool Test Area (MTA) is a complex of buildings at Fermi National Accelerator Laboratory, which are dedicated to operate components of a cooling cell to be used for Muon Collider and Neutrino Factory R&D. The long-term goal of this facility is to test ionization cooling principles by operating a 25-liter liquid hydrogen (LH{sub 2}) absorber embedded in a 5 Tesla superconducting solenoid magnet. The MTA solenoid magnet will be used with RF cavities exposed to a high intensity beam. Cryogens used at the MTA include LHe, LN{sub 2} and LH{sub 2}. The latter dictates stringent system design for hazardous locations. The cryogenic plant is a modified Tevatron refrigerator based on the Claude cycle. The implementation of an in-house refrigerator system and two 300 kilowatt screw compressors is under development. The helium refrigeration capacity is 500 W at 14 K. In addition the MTA solenoid magnet will be batch-filled with LHe every 2 days using the same cryo-plant. This paper reviews cryogenic systems used to support the Muon Collider and Neutrino Factory R&D programs and emphasizes the feasibility of handling cryogenic equipment at MTA in a safe manner.

Darve, Christine; Norris, Barry; Pei, Liu-Jin; /Fermilab

2005-09-01T23:59:59.000Z

48

Precision monitoring of relative beam intensity for Mu2e  

SciTech Connect

For future experiments at the intensity frontier, precise and accurate knowledge of beam time structure will be critical to understanding backgrounds. The proposed Mu2e experiment will utilize {approx}200 ns (FW) bunches of 3 x 10{sup 7} protons at 8 GeV with a bunch-to-bunch period of 1695 ns. The out-of-bunch beam must be suppressed by a factor of 10{sup -10} relative to in-bunch beam and continuously monitored. I propose a Cerenkov-based particle telescope to measure secondary production from beam interactions in a several tens of microns thick foil. Correlating timing information with beam passage will allow the determination of relative beam intensity to arbitrary precision given a sufficiently long integration time. The goal is to verify out-of-bunch extinction to the level 10{sup -6} in the span of several seconds. This will allow near real-time monitoring of the initial extinction of the beam resonantly extracted from Fermilabs Debuncher before a system of AC dipoles and collimators, which will provide the final extinction. The effect on beam emittance is minimal, allowing the necessary continuous measurement. I will present the detector design and some concerns about bunch growth during the resonant extraction.

Evans, N.J.; Kopp, S.E.; /Texas U.; Prebys, E.; /Fermilab

2011-04-01T23:59:59.000Z

49

The MU Science Education Center (MUSEC) has at the core of its mission (see back  

E-Print Network (OSTI)

to be active participants in continuing the reform of K-16 science education. (GRADUATE EDUCATION) G O A L A RThe MU Science Education Center (MUSEC) has at the core of its mission (see back cover) to improve science teaching and learning for all. This annual report cele- brates the successes of the MU Science

Noble, James S.

50

Enhanced mu-e conversion in nuclei in the inverse seesaw model  

E-Print Network (OSTI)

We investigate nuclear mu-e conversion in the framework of an effective Lagrangian arising from the inverse seesaw model of neutrino masses. We consider lepton flavour violation interactions that arise from short range (non-photonic) as well as long range (photonic) contributions. Upper bounds for the LFV parameters characterizing mu-e conversion are derived in the inverse seesaw model Lagrangian using the available limits on the mu-e conversion branching ratio, as well as the expected sensitivities of upcoming experiments. We comment on the relative importance of these two types of contributions and their relationship with the measured solar neutrino mixing angle theta_12 and the dependence on theta_13. Finally we show how the LFV mu-e conversion and the mu -> e gamma rates are strongly correlated in this model.

F. Deppisch; T. S. Kosmas; J. W. F. Valle

2005-12-29T23:59:59.000Z

51

SPITZER 24 {mu}m SURVEY FOR DUST DISKS AROUND HOT WHITE DWARFS  

Science Conference Proceedings (OSTI)

Two types of dust disks around white dwarfs (WDs) have been reported: small dust disks around cool metal-rich WDs consisting of tidally disrupted asteroids and a large dust disk around the hot central WD of the Helix planetary nebula (PN) possibly produced by collisions among Kuiper-Belt-like objects. To search for more dust disks of the latter type, we have conducted a Spitzer MIPS 24 {mu}m survey of 71 hot WDs or pre-WDs, among which 35 are central stars of PNe (CSPNs). Nine of these evolved stars are detected and their 24 {mu}m flux densities are at least two orders of magnitude higher than their expected photospheric emission. Considering the bias against the detection of distant objects, the 24 {mu}m detection rate for the sample is {approx}>15%. It is striking that seven, or {approx}20%, of the WD and pre-WDs in known PNe exhibit 24 {mu}m excesses, while two, or 5%-6%, of the WDs not in PNe show 24 {mu}m excesses and they have the lowest 24 {mu}m flux densities. We have obtained follow-up Spitzer Infrared Spectrograph spectra for five objects. Four show clear continuum emission at 24 {mu}m, and one is overwhelmed by a bright neighboring star but still shows a hint of continuum emission. In the cases of WD 0950+139 and CSPN K 1-22, a late-type companion is present, making it difficult to determine whether the excess 24 {mu}m emission is associated with the WD or its red companion. High-resolution images in the mid-infrared are needed to establish unambiguously the stars responsible for the 24 {mu}m excesses.

Chu, You-Hua; Bilikova, Jana; Gruendl, Robert A. [Department of Astronomy, University of Illinois at Urbana-Champaign, Urbana, IL 61801 (United States); Su, Kate Y. L. [Stewart Observatory, University of Arizona, Tucson, AZ 85721 (United States); De Marco, Orsola [Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109 (Australia); Guerrero, Martin A. [Instituto de Astrofisica de Andalucia, CSIC, E-18008 Granada (Spain); Updike, Adria C. [CRESST and the Observational Cosmology Laboratory, NASA/GSFC, Greenbelt, MD 20771 (United States); Volk, Kevin [Space Telescope Science Institute, Baltimore, MD 21218 (United States); Rauch, Thomas, E-mail: yhchu@illinois.edu [Institut fuer Astronomie und Astrophysik Tuebingen (IAAT), Abteilung Astronomie, D-72076 Tuebingen (Germany)

2011-09-15T23:59:59.000Z

52

DISCOVERY AND ANALYSIS OF 21 {mu}m FEATURE SOURCES IN THE MAGELLANIC CLOUDS  

Science Conference Proceedings (OSTI)

Spitzer Space Telescope mid-infrared spectroscopy has been obtained for 15 carbon-rich protoplanetary nebulae (PPNe) in the Large Magellanic Cloud (LMC) and for two other such stars in the Small Magellanic Cloud (SMC). Of these 17 PPNe, the unidentified 21 {mu}m feature is strong in 7 spectra, weak in 2 spectra, and very weak or questionable in 4 spectra. Two of the four spectra without the 21 {mu}m feature have a very strong feature near 11 {mu}m, similar to a feature observed in some carbon-rich planetary nebulae (PNe) in the LMC. We attribute this feature to unusual SiC dust, although the feature-to-continuum ratio is much larger than for SiC features in Galactic or Magellanic Cloud carbon star spectra. The remaining two objects show typical carbon-rich PPNe spectra with no 21 {mu}m features. One of the LMC objects that lacks the 21 {mu}m feature and one SMC object with a questionable 21 {mu}m detection may have mixed dust chemistries based upon their spectral similarity to Galactic [WC] PNe. The 13 objects that either definitely or may show the 21 {mu}m feature have distinct dust shell properties compared to the Galactic 21 {mu}m objects-the 21 {mu}m features are weaker, the estimated dust temperatures are significantly higher, the unidentified infrared (UIR) bands are stronger, and the UIRs show more structure. Four of the 21 {mu}m objects appear to show normal SiC emission features in their spectra. Many of the PPNe show strong 30 {mu}m features, although this feature carries less of the total mid-infrared emission than is normally the case for the Galactic 21 {mu}m PPNe. The LMC objects are in the LMC halo rather than in the LMC bar. The estimated luminosities of these PPNe vary from 4700 to 12,500 L{sub sun}.

Volk, Kevin; Meixner, Margaret; Gordon, Karl D. [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Hrivnak, Bruce J. [Department of Physics and Astronomy, Valparaiso University, Valparaiso, IN 46383 (United States); Matsuura, Mikako [Department of Physics and Astronomy, UCL-Institute of Origins, University College London, Gower Street, London WC1E 6BT (United Kingdom); Bernard-Salas, Jeronimo [Institut d Astrophysique Spatiale, CNRS/Universite Paris-Sud 11, 91405, Orsay (France); Szczerba, Ryszard [N. Copernicus Astronomical Center, Rabianska 8, 87-100 Torun (Poland); Sloan, G. C. [Department of Astronomy, Cornell University, Ithaca, NY 14853 (United States); Kraemer, Kathleen E. [Air Force Research Laboratory, AFRL/RVBYB, 29 Randolph Road, Hanscom AFB, MA 01731 (United States); Van Loon, Jacco Th. [Astrophysics Group, Lennard-Jones Laboratories, Keele University, Staffordshire ST5 5BG (United Kingdom); Kemper, F.; Woods, Paul M.; Zijlstra, Albert A. [Jodrell Bank Centre for Astrophysics, Alan Turing Building, School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL (United Kingdom); Sahai, Raghvendra [Jet Propulsion Laboratory, MS 183-900, California Institute of Technology, Pasadena, CA 91109 (United States); Gruendl, Robert A. [Astronomy Department, University of Illinois, 1002 West Green Street, Urbana, IL 61801 (United States); Tielens, Alexander G. G. M. [Leiden Observatory, P.O. Box 9513, NL-2300 RA Leiden (Netherlands); Indebetouw, Remy [Department of Astronomy, University of Virginia, P.O. Box 400325, Charlottesville, VA 22903 (United States); Marengo, Massimo, E-mail: volk@stsci.edu [Department of Physics and Astronomy, Iowa State University, A313E Zaffarano, Ames, IA 50011 (United States)

2011-07-10T23:59:59.000Z

53

Reaction $nu$d $Yields$ $mu$$sup -$pp/sub s/  

SciTech Connect

After making the usual model assumptions, the shape of the dsigma/dQ$sup 2$ distribution and the energy dependence and magnitude of the cross section were fit in order to determine the shape of the form factors for the reaction $nu$d $Yields$ $mu$$sup -$pp. It is noted that one can also test the CVC hypothesis. The cross section is shown as a function of neutrino energy for the $nu$n $Yields$ $mu$$sup -$p reaction. Also shown is the Q$sup 2$ dependence of the $nu$n $Yields$ $mu$$sup -$p events. (JFP)

Barish, S.J.; Derrick, M.; Hyman, L.; Musgrave, B.; Schreiner, P.; Singer, R.; Barnes, V.; Carmony, D.; Garfinkel, A.

1975-01-01T23:59:59.000Z

54

A search for the rare decay. mu. /sup +/. -->. e/sup +/. gamma gamma  

SciTech Connect

An experimental search for the lepton-family number nonconserving decay, ..mu../sup +/ ..-->.. e/sup +/..gamma gamma.., has been conducted at the Clinton P. Anderson Meson Physics Facility (LAMPF) using the Crystal Box detector. The detector consists of a modular NaI(Tl) calorimeter, scintillator hodoscope, and a high-resolution, cylindrical drift chamber. It provides a large solid-angle for detecting three-body decays and has good resolutions in the time, position, and energy measurements to eliminate unwanted backgrounds. No evidence for ..mu../sup +/ ..-->.. e/sup +/..gamma gamma.. is found, giving an upper limit for the branching ratio of GAMMA(..mu.. ..-->.. e..gamma gamma..)/GAMMA(..mu.. ..-->.. e nu anti nu) less than or equal to 7.2 x 10/sup -11/ (90% C.L.). This result is an improvement of more than two orders of magnitude in the existing limit. 109 refs., 39 figs.

Grosnick, D.P.

1987-02-01T23:59:59.000Z

55

Electrical design note for a 5000 ADC, 230 {mu}H power supply filter choke  

SciTech Connect

This note describes the design of a 5000 ADC, 230 {mu}H choke made from standard transformer cores. Five of these chokes have been made for CDF and MTF. NOTE: Special magnets can also be made using standard cores.

Visser, A.T.

1993-04-01T23:59:59.000Z

56

Lepton flavor violating Higgs bosons and {tau}{yields}{mu}{gamma}  

SciTech Connect

We update phenomenological constraints on a two Higgs doublet model with lepton flavor nonconserving Yukawa couplings. We review that tan{beta} is ambiguous in such 'type III' models, and define it from the {tau} Yukawa coupling. The neutral scalars {phi} could be searched for at hadron colliders in {phi}{yields}{tau}{mu} and are constrained by the rare decay {tau}{yields}{mu}{gamma}. The Feynman diagrams for the collider process, with Higgs production via gluon fusion, are similar to the two-loop ''Barr-Zee'' diagrams, which contribute to {tau}{yields}{mu}{gamma}. Some ''tuning'' is required to obtain a collider cross section of order the standard model expectation for {sigma}(gg{yields}h{sub SM{yields}{tau}}{sup +{tau}-}), while agreeing with the current bound from {tau}{yields}{mu}{gamma}.

Davidson, Sacha; Grenier, Gerald [IPNL, Universite de Lyon, Universite Lyon 1, CNRS/IN2P3, 4 rue E. Fermi 69622 Villeurbanne cedex (France)

2010-05-01T23:59:59.000Z

57

Proposal to search for mu- N -> e- N with a single event sensitivity below 10 -16  

SciTech Connect

We propose a new experiment, Mu2e, to search for charged lepton flavor violation with unprecedented sensitivity. We will measure the ratio of the coherent neutrinoless conversion in the field of a nucleus of a negatively charged muon into an electron to the muon capture process: R{sub {mu}e} = {mu}{sup -} + A(Z,N) {yields} e{sup -} + A(Z,N)/{mu}{sup -} + A(Z,N) {yields} {nu}{sub {mu}} + A(Z-1, N), with a sensitivity R{sub {mu}e} {le} 6 x 10{sup -17} at 90% CL. This is almost a four order-of-magnitude improvement over the existing limit. The observation of such a process would be unambiguous evidence of physics beyond the Standard Model. Since the discovery of the muon in 1936, physicists have attempted to answer I.I. Rabi's famous question: 'Who ordered that?' Why is there a muon? What role does it play in the larger questions of why there are three families and flavors of quarks, leptons, and neutrinos? We know quarks mix through a mechanism described by the Cabbibo-Kobayashi-Maskawa matrix, which has been studied for forty years. Neutrino mixing has been observed in the last decade, but mixing among the family of charged leptons has never been seen. The current limits are of order 10{sup -11} - 10{sup -13} so the process is rare indeed. Why is such an experiment important and timely? A major motivation for experiments at the Large Hadron Collider (LHC) is the possible observation of supersymmetric particles in the TeV mass range. Many of these supersymmetric models predict a {mu}-e conversion signal at R{sub {mu}e} {approx} 10{sup -15}. We propose to search for {mu}-e conversion at a sensitivity that exceeds this by more than an order of magnitude. The LHC may not be able to conclusively distinguish among supersymmetric models, so Mu2e will provide invaluable information should the LHC observe a signal. In the case where the LHC finds no evidence of supersymmetry, or other beyond-the-standard-model physics, Mu2e will probe for new physics at mass scales up to 10{sup 4} TeV, far beyond the reach of any planned accelerator.

Carey, R.M.; Lynch, K.R.; Miller, J.P.; Roberts, B.L.; /Boston U.; Marciano, W.J.; Semertzidis, Y.; Yamin, P.; /Brookhaven; Kolomensky, Yu.G.; /UC, Berkeley; Molzon, W.; /UC, Irvine; Popp, J.L.; /City Coll., N.Y.; Ankenbrandt, C.M.; /Fermilab /Idaho State U. /Illinois U., Urbana /Moscow, INR /Massachusetts U., Amherst /MUONS Inc., Batavia /Northwestern U.

2008-10-01T23:59:59.000Z

58

Proposal to search for mu- N -> e- N with a single event sensitivity below 10 -16  

SciTech Connect

We propose a new experiment, Mu2e, to search for charged lepton flavor violation with unprecedented sensitivity. We will measure the ratio of the coherent neutrinoless conversion in the field of a nucleus of a negatively charged muon into an electron to the muon capture process: R{sub {mu}e} = {mu}{sup -} + A(Z,N) {yields} e{sup -} + A(Z,N)/{mu}{sup -} + A(Z,N) {yields} {nu}{sub {mu}} + A(Z-1, N), with a sensitivity R{sub {mu}e} {le} 6 x 10{sup -17} at 90% CL. This is almost a four order-of-magnitude improvement over the existing limit. The observation of such a process would be unambiguous evidence of physics beyond the Standard Model. Since the discovery of the muon in 1936, physicists have attempted to answer I.I. Rabi's famous question: 'Who ordered that?' Why is there a muon? What role does it play in the larger questions of why there are three families and flavors of quarks, leptons, and neutrinos? We know quarks mix through a mechanism described by the Cabbibo-Kobayashi-Maskawa matrix, which has been studied for forty years. Neutrino mixing has been observed in the last decade, but mixing among the family of charged leptons has never been seen. The current limits are of order 10{sup -11} - 10{sup -13} so the process is rare indeed. Why is such an experiment important and timely? A major motivation for experiments at the Large Hadron Collider (LHC) is the possible observation of supersymmetric particles in the TeV mass range. Many of these supersymmetric models predict a {mu}-e conversion signal at R{sub {mu}e} {approx} 10{sup -15}. We propose to search for {mu}-e conversion at a sensitivity that exceeds this by more than an order of magnitude. The LHC may not be able to conclusively distinguish among supersymmetric models, so Mu2e will provide invaluable information should the LHC observe a signal. In the case where the LHC finds no evidence of supersymmetry, or other beyond-the-standard-model physics, Mu2e will probe for new physics at mass scales up to 10{sup 4} TeV, far beyond the reach of any planned accelerator.

Carey, R.M.; Lynch, K.R.; Miller, J.P.; Roberts, B.L.; /Boston U.; Marciano, W.J.; Semertzidis, Y.; Yamin, P.; /Brookhaven; Kolomensky, Yu.G.; /UC, Berkeley; Molzon, W.; /UC, Irvine; Popp, J.L.; /City Coll., N.Y.; Ankenbrandt, C.M.; /Fermilab /Idaho State U. /Illinois U., Urbana /Moscow, INR /Massachusetts U., Amherst /MUONS Inc., Batavia /Northwestern U.

2008-10-01T23:59:59.000Z

59

Warm Spitzer Occultation Photometry of WASP-26b at 3.6{\\mu}m and 4.5{\\mu}m  

E-Print Network (OSTI)

We present new warm Spitzer occultation photometry of WASP-26 at 3.6{\\mu}m and 4.5{\\mu}m along with new transit photometry taken in the g,r and i bands. We report the first detection of the occultation of WASP-26b, with occultation depths at 3.6{\\mu}m and 4.5{\\mu}m of 0.00126 +/- 0.00013 and 0.00149 +/- 0.00016 corresponding to brightness temperatures of 1825+/-80K and 1725+/-89K, respectively. We find that the eccentricity of the orbit is consistent with a circular orbit at the 1{\\sigma} level with a 3{\\sigma} upper limit of e < 0.04. According to the activity-inversion relation of Knutson et al. (2010), WASP-26b is predicted to host a thermal inversion. The brightness temperatures deduced from the eclipse depths are consistent with an isothermal atmosphere, although it is within the uncertainties that the planet may host a weak thermal inversion. The data are equally well fit by atmospheric models with or without a thermal inversion. We find that variation in activity of solar-like stars does not change ...

Mahtani, D P; Anderson, D R; Smith, A M S; Smalley, B; Tregloan-Reed, J; Southworth, J; Madhusudhan, N; Cameron, A Collier; Gillon, M; Harrington, J; Hellier, C; Pollacco, D; Queloz, D; Triaud, A H M J; West, R G

2013-01-01T23:59:59.000Z

60

Higgs quadruplet for the type III seesaw model and implications for {mu}{yields}e{gamma} and {mu}-e conversion  

SciTech Connect

In the type III seesaw model, the heavy neutrinos are contained in leptonic triplet representations. The Yukawa couplings of the triplet fermion and the left-handed neutrinos with the doublet Higgs field produce the Dirac mass terms. Together with the Majorana masses for the leptonic triplets, the light neutrinos obtain nonzero seesaw masses. We point out that it is also possible to have a quadruplet Higgs field to produce the Dirac mass terms to facilitate the seesaw mechanism. The vacuum expectation value of the quadruplet Higgs is constrained to be small by electroweak precision data. Therefore, the Yukawa couplings of a quadruplet can be much larger than those for a doublet. We also find that unlike the usual type III seesaw model where at least two copies of leptonic triplets are needed, with both doublet and quadruplet Higgs representations, just one leptonic triplet is possible to have a phenomenologically acceptable model because light neutrino masses can receive sizable contributions at both tree and one-loop levels. Large Yukawa couplings of the quadruplet can induce observable effects for lepton flavor violating processes {mu}{yields}e{gamma} and {mu}-e conversion. Implications of the recent {mu}{yields}e{gamma} limit from MEG and the limit on {mu}-e conversion on Au are also given. Some interesting collider signatures for the doubly charged Higgs boson in the quadruplet are discussed.

Ren Bo [INPAC, Department of Physics, Shanghai Jiao Tong University, Shanghai (China); Tsumura, Koji [Department of Physics and Center for Theoretical Sciences, National Taiwan University, Taipei, Taiwan (China); He Xiaogang [INPAC, Department of Physics, Shanghai Jiao Tong University, Shanghai (China); Department of Physics and Center for Theoretical Sciences, National Taiwan University, Taipei, Taiwan (China)

2011-10-01T23:59:59.000Z

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61

A 205 {mu}m [N II] MAP OF THE CARINA NEBULA  

Science Conference Proceedings (OSTI)

We present the results of a {approx}250 arcmin{sup 2} mapping of the 205 {mu}m [N II] fine-structure emission over the northern Carina Nebula, including the Car I and Car II H II regions. Spectra were obtained using the South Pole Imaging Fabry-Perot Interferometer (SPIFI) at the Antarctic Submillimeter Telescope and Remote Observatory (AST/RO) at the South Pole. We supplement the 205 {mu}m data with new reductions of far-IR fine-structure spectra from the Infrared Space Observatory (ISO) Long Wavelength Spectrometer (LWS) in 63 {mu}m [O I], 122 {mu}m [N II], 146 {mu}m [O I], and 158 {mu}m [C II]; the 146 {mu}m [O I] data include 90 raster positions which have not been previously published. Morphological comparisons are made with optical, radio continuum, and CO maps. The 122/205 line ratio is used to probe the density of the low-ionization gas, and the 158/205 line ratio is used to probe the fraction of C{sup +} arising from photodissociation regions (PDRs). The [O I] and [C II] lines are used to construct a PDR model of Carina. When the PDR properties are compared with other sources, Carina is found to be more akin to 30 Doradus than galactic star-forming regions such as Orion, M17, or W49; this is consistent with the view of Carina as a more evolved region, where much of the parent molecular cloud has been ionized or swept away. These data constitute the first ground-based detection of the 205 {mu}m [N II] line, and the third detection overall since those of COBE FIRAS and the Kuiper Airborne Observatory in the early 1990s.

Oberst, T. E.; Parshley, S. C.; Nikola, T.; Stacey, G. J. [Department of Astronomy, Cornell University, Ithaca, NY 14853 (United States); Loehr, A.; Lane, A. P.; Stark, A. A. [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States); Kamenetzky, J., E-mail: oberstte@westminster.edu [Center for Astrophysics and Space Astronomy, University of Colorado, Boulder, CO 80303 (United States)

2011-10-01T23:59:59.000Z

62

On the model discriminating power of mu to e conversion in nuclei  

SciTech Connect

Lepton Flavor Violating (LFV) charged lepton decays provide a highly sensitive probe of physics beyond the Standard Model (SM), due to the un-observably small branching fractions ({approx}10{sup -50}) predicted for these modes in the SM (minimally extended to include massive neutrinos). Searches for SM forbidden muon processes, such as {mu} {yields} e{gamma}, {mu} {yields} e{bar e}e, and {mu} {yields} e conversion in nuclei, have provided so far the strongest constraints on LFV new physics. This statement can be characterized in a model-independent way as a lower bound on the scale associated to a set of dimension six effective operators parameterizing new physics beyond the SM. It is a well known fact that while the decay {mu} {yields} e{gamma} is only sensitive to a transition magnetic dipole operator, both {mu} {yields} e{bar e}e and {mu} {yields} e conversion in nuclei are sensitive to transition charge radii operators as well as purely contact four-fermion interactions induced by physics beyond the SM. In other words, different LFV decays have different sensitivities to underlying LFV mechanisms (effective operators). This leads naturally to ask the question whether one could infer the relative strength of these different operators in a completely phenomenological and model-independent way. This would allow one to discriminate among different underlying models of LFV and thus would provide valuable input for model building. In Ref. [1] it was pointed out that in principle, by combining the rates of {mu} {yields} e{gamma} and {mu} {yields} e conversion on different target nuclei, one could discriminate underlying models. In this work we go back to this issue with the aim to: quantify the theoretical uncertainty induced by the hadronization process; and quantify the experimental precision required to realistically infer useful information on the underlying LFV mechanisms. We organize our discussion as follows: in Section 2 we review the derivation of the {mu} {yields} e conversion rate starting from a general effective theory description of the LFV physics. In Section 3 we explore the phenomenological consequence of the simplest possible models, in which only one effective LFV operator dominates. We extend this analysis in Section 4 to the class of models in which two operators dominate. In Section 5 we specialize our discussion to the SUSY see-saw model and summarize the conclusions of our analysis in Section 6.

Cirigliano, Vincenzo [Los Alamos National Laboratory; Kitano, Ryuichiro [JAPAN; Okada, Yashuiro [JAPAN; Tuzon, Paulo [ITALY

2009-01-01T23:59:59.000Z

63

Routine {sup 18}F{sup -} production with 180 {mu}A to 200 {mu}A target beam current on a GE PETtrace 800 cyclotron  

SciTech Connect

Through upgrades and enhancements, which are now standard on current PETtrace 800 cyclotrons, a GE PETtrace cyclotron installed in 2002 has demonstrated reliable routine [{sup 18}F]FDG production at total target beam currents of 180 {mu}A without detriment to saturation and [{sup 18}F]FDG yields. Routine production at 200 {mu}A has been achieved and its evaluation is continuing. Self-shielded target using W/Cu alloy for the target body afforded a reduction in dose rate from the Havar foils by a factor of {approx} 8-10, reducing dose from the targets and need for removing targets during maintenance. The main activation product in the shield is {sup 187}W (T1/2 24 h). The {sup 60}Co ((T1/2 5.3 y) activation is about 250 times less at 24 h post EOB and is not considered a major issue despite its long half-life.

Eberl, S.; Eriksson, T.; Svedberg, O.; Norling, J.; Henderson, D.; Lam, P.; Bourdier, T.; Fulham, M. [Department of PET and Nuclear Medicine, Royal Prince Alfred Hospital, Sydney, NSW (Australia); GEMS PET Systems AB, Uppsala (Sweden); Department of PET and Nuclear Medicine, Royal Prince Alfred Hospital, Sydney, NSW (Australia)

2012-12-19T23:59:59.000Z

64

Design of a neutron penumbral-aperture microscope with 10-. mu. m resolution  

SciTech Connect

We are currently designing a 10-{mu}m resolution neutron penumbral-aperture microscope to diagnose high-convergence targets at the Nova laser facility. To achieve such high resolution, the new microscope will require substantial improvements in three areas. First, we have designed thick penumbral apertures with extremely sharp cutoffs over a useful ({approx}100 {mu}m) field of view; fabrication of such apertures appears feasible using gold electroplating techniques. Second, the limited field of view and required close proximity of the aperture to the target (2 cm) necessitates a durable mounting and alignment system with {plus}25 {mu}m accuracy. Finally, a neutron detector containing 160,000 scintillator elements is required; readout and optimization of this large array are outstanding issues. 5 refs., 3 figs.

Ress, D.; Lerche, R.A.; Ellis, R.J.; Lane, S.M.

1990-05-01T23:59:59.000Z

65

Radiation shielding calculations for MuCool test area at Fermilab  

DOE Green Energy (OSTI)

The MuCool Test Area (MTA) is an intense primary beam facility derived directly from the Fermilab Linac to test heat deposition and other technical concerns associated with the liquid hydrogen targets being developed for cooling intense muon beams. In this shielding study the results of Monte Carlo radiation shielding calculations performed using the MARS14 code for the MuCool Test Area and including the downstream portion of the target hall and berm around it, access pit, service building, and parking lot are presented and discussed within the context of the proposed MTA experimental configuration.

Igor Rakhno; Carol Johnstone

2004-05-26T23:59:59.000Z

66

Optimization of AC Dipole Parameters for the Mu2e Extinction System  

SciTech Connect

The Mu2e experiment is being planned at Fermilab to measure the rate for muons to convert to electrons in the field of an atomic nucleus with unprecedented precision. This experiment uses an 8 GeV primary proton beam consisting of short ({approx}200 nsec FW) bunches, separated by 1.7 {mu}sec. It is vital that out-of-bunch beam be suppressed at the level of 10{sup -10} or less. This poster describes the parametric analysis which was done to determine the optimum harmonics and magnet specifications for this system, as well as the implications for the beam line optics.

Prebys, E.; /Fermilab

2012-05-01T23:59:59.000Z

67

Tanikawa C et al. Mol Cancer Res 8: 855-863, 2010. Tanikawa C et al. Cancer Res 69: 8761-9, 2009.  

E-Print Network (OSTI)

p53 p53 30000 p53 Tanikawa C et al. Mol Cancer Res 8: 855-863, 2010. Tanikawa C et al. Cancer Res 69: 8761-9, 2009. Tanikawa C et al.Oncogene 28: 3081-92, 2009. Morioka K et al. Cancer Science 100: 1227-1233, 2009. Kidokoro T et al. Oncogene 27: 1562-1571, 2008

Katsumoto, Shingo

68

Search for the decays K/sub L//sup 0/. --> mu. e and K/sub L//sup 0/. -->. ee  

Science Conference Proceedings (OSTI)

We have obtained upper limits for the decays K/sub L//sup 0/..--> mu..e and K/sub L//sup 0/..-->..ee. The limits on the branching ratios are B(K/sub L//sup 0/..--> mu..e) ..ee) mu mu.., we have identified two events.

Cousins, R.D.; Konigsberg, J.; Kubic, J.; Melese, P.; Rubin, P.; Slater, W.E.; Frank, J.S.; Hart, G.W.; Kinnison, W.W.; Lee, D.M.; and others

1988-11-01T23:59:59.000Z

69

Search for the rare leptonic decays B+-->l+ nu l (l=e,mu)  

E-Print Network (OSTI)

We have performed a search for the rare leptonic decays B+-->?+nu ?(l=e,mu), using data collected at the ?(4S) resonance by the BABAR detector at the PEP-II storage ring. In a sample of 468106 BB[over-bar] pairs we find ...

Zhao, M.

70

EMasticWindows: improvedSpatial Layoutand Rapid MuRipmeWindow Operations  

E-Print Network (OSTI)

Symposium of the Washington, DC Chapter of the ACM, (1991), pp. t21-131. 16. Malone, T. W., How do peopleEMasticWindows: improvedSpatial Layoutand Rapid MuRipmeWindow Operations Eser Kandogan Department)405-2680 ben@cs.umd.edu ABSTRACT Most windowing systems follow the independent overlap- ping windows approach

Shneiderman, Ben

71

Analysis of the charmed semileptonic decay D+ ---> rho0 mu+ nu  

SciTech Connect

The search for the fundamental constituents of matter has been pursued and studied since the dawn of civilization. As early as the fourth century BCE, Democritus, expanding the teachings of Leucippus, proposed small, indivisible entities called atoms, interacting with each other to form the Universe. Democritus was convinced of this by observing the environment around him. He observed, for example, how a collection of tiny grains of sand can make out smooth beaches. Today, following the lead set by Democritus more than 2500 years ago, at the heart of particle physics is the hypothesis that everything we can observe in the Universe is made of a small number of fundamental particles interacting with each other. In contrast to Democritus, for the last hundred years we have been able to perform experiments that probe deeper and deeper into matter in the search for the fundamental particles of nature. Today's knowledge is encapsulated in the Standard Model of particle physics, a model describing the fundamental particles and their interactions. It is within this model that the work in this thesis is presented. This work attempts to add to the understanding of the Standard Model by measuring the relative branching fraction of the charmed semileptonic decay D{sup +} {yields} {rho}{sup 0}{mu}{sup +}{nu} with respect to D{sup +} {yields} {bar K}*{sup 0} {mu}{sup +}{nu}. Many theoretical models that describe hadronic interactions predict the value of this relative branching fraction, but only a handful of experiments have been able to measure it with any precision. By making a precise measurement of this relative branching fraction theorists can distinguish between viable models as well as refine existing ones. In this thesis we presented the measurement of the branching fraction ratio of the Cabibbo suppressed semileptonic decay mode D{sup +} {yields} {rho}{sup 0}{mu}{sup +}{nu} with respect to the Cabibbo favored mode D{sup +} {yields} {bar K}*{sup 0} {mu}{sup +}{nu} using data collected by the FOCUS collaboration. We used a binned maximum log-likelihood fit that included all known semileptonic backgrounds as well as combinatorial and muonmisidentification backgrounds to extract the yields for both the signal and normalization modes. We reconstructed 320 {+-} 44 D{sup +} {yields} {rho}{sup 0}{mu}{sup +}{nu} events and 11372 {+-} 161 D{sup +} {yields} K{sup -}{pi}{sup +}{mu}{sup +}{nu} events. Taking into account the non-resonant contribution to the D{sup +} {yields} K{sup -}{pi}{sup +}{mu}{sup +}{nu} yield due to a s-wave interference first measured by FOCUS the branching fraction ratio is: {Lambda}(D{sup +} {yields} {rho}{sup 0}{mu}{sup +}{nu}) = 0.0412 {+-} 0.0057 {+-} 0.0040 (VII.1) where the first error is statistical and the second error is the systematic uncertainty. This represents a substantial improvement over the previous world average. More importantly, the new world average for {Lambda}(D{sup +}{yields}{rho}{sup 0}{mu}{sup +}{nu})/{Lambda}(D{sup +}{yields}{bar K}*{sup 0}{mu}{sup +}{nu}) along with the improved measurements in the electronic mode can be used to discriminate among different theoretical approaches that aim to understand the hadronic current involved in the charm to light quark decay process. The average of the electronic and muonic modes indicate that predictions for the partial decay width {Lambda}(D{sup +} {yields} {rho}{sup 0}{ell}{sup +}{nu}) and the ratio {Lambda}(D{sup +}{yields}{rho}{sup 0}{ell}{sup +}{nu})/{Lambda}(D{sup +}{yields}{bar K}*{sup 0}{ell}{sup +}{nu}) based on Sum Rules are too low. Using the same data used to extract {Lambda}(D{sup +}{yields}{rho}{sup 0}{mu}{sup +}{nu})/{Lambda}(D{sup +}{yields}{bar K}*{sup 0}{mu}{sup +}{nu}) we studied the feasibility of measuring the form factors for the D{sup +} {yields} {rho}{sup 0}{mu}{sup +}{nu} decay. We found that the need to further reduce the combinatorial and muon misidentification backgrounds left us with a much smaller sample of 52 {+-} 12 D{sup +} {yields} {rho}{sup 0}{mu}{sup +}{mu} events; not enough to make a statistically significa

Luiggi, Eduardo E.; /Vanderbilt U.

2008-12-01T23:59:59.000Z

72

Semileptonic Form Factor ratio B_s->D_s/B->D and Its Application to BR(B^0_s->\\mu^+\\mu^-)  

SciTech Connect

We present a (2+1)-flavor lattice QCD calculation of the form factor ratio between the semileptonic decays {bar B}{sub s}{sup 0} {yields} D{sub s}{sup +}l{sup -}{bar {nu}} and {bar B}{sup 0} {yields} D{sup +}l{sup -}{bar {nu}}. This ratio is an important theoretical input to the hadronic determination of the B meson fragmentation fraction ratio f{sub s}/f{sub d} which enters in the measurement of BR(B{sub s}{sup 0} {yields} {mu}{sup +}{mu}{sup -}). Small lattice spacings and high statistics enable us to simulate the decays with a dynamic final D meson of small momentum and reliably extract the hadronic matrix elements at nonzero recoil. We report our preliminary result for the form factor ratio at the corresponding momentum transfer of the two decays f{sub 0}{sup (s)} (M{sub {pi}}{sup 2})/f{sub 0}{sup (d)} (M{sub K}{sup 2}).

Du, Daping; /Iowa U. /Fermilab /Illinois U., Urbana; DeTar, Carleton; /Utah U.; Kronfeld, Andreas; /Fermilab; Laiho, Jack; /Strathclyde U. /Glasgow U.; Meurice, Yannick; /Iowa U.; Qiu, Si-wei; /Utah U.

2011-11-01T23:59:59.000Z

73

Gauge origin of M parity and the {mu} term in supersymmetry  

SciTech Connect

In this article, we present a simple theoretical framework where the origin of the {mu} term and the matter-parity-violating interactions of the minimal supersymmetric standard model can be understood from the spontaneous breaking of new Abelian gauge symmetries. In this context, the masses of the Z{sup '} gauge bosons, the M-parity-violating scale and the {mu} term are determined by the supersymmetry breaking scale. The full spectrum of the theory is discussed in detail. We investigate the predictions for the Higgs masses in detail showing that it is possible to satisfy the LEP2 bounds even with sub-TeV squark masses. The model predicts the existence of light colored fields, lepton- and baryon-number violation, and new neutral gauge bosons at the Large Hadron Collider.

Fileviez Perez, Pavel; Gonzalez-Alonso, Martin; Spinner, Sogee [Phenomenology Institute (PHENO), Department of Physics, University of Wisconsin-Madison, Wisconsin 53706 (United States); Center for Cosmology and Particle Physics (CCPP), Department of Physics, New York University, New York, 10003 (United States); Theoretical Nuclear, Particle, Astrophysics, and Cosmology (NPAC) Group, Department of Physics, University of Wisconsin-Madison, Wisconsin 53706 (United States); Phenomenology Institute (PHENO), Department of Physics, University of Wisconsin-Madison, Wisconsin 53706 (United States)

2011-11-01T23:59:59.000Z

74

On the model discriminating power of mu -> e conversion in nuclei  

E-Print Network (OSTI)

We assess the model discriminating power of a combined phenomenological analysis of mu -> e gamma and mu -> e conversion on different target nuclei, including the current hadronic uncertainties. We find that the theoretical uncertainties can be largely reduced by using input from lattice QCD and do not constitute a limiting factor in discriminating models where one or at most two underlying operators (dipole, scalar, vector) provide the dominant source of lepton flavor violation. Our results show that a realistic discrimination among underlying mechanisms requires a measurement of the ratio of conversion rates at the 5% level (two light nuclei) or at the 20% level (one light and one heavy nucleus). We have illustrated these main conclusions also in the context of a supersymmetric model.

Vincenzo Cirigliano; Ryuichiro Kitano; Yasuhiro Okada; Paula Tuzon

2009-04-06T23:59:59.000Z

75

A low-energy solution to the mu-problem in gauge mediation  

E-Print Network (OSTI)

In the gauge-mediation framework the soft supersymmetry breaking mass parameters of the supersymmetric standard model are induced by the gauge interactions of some messenger fields. The parameters exhibit flavor universality which is dictated by the gauge interactions and which efficiently eliminates new dangerous contributions to flavor changing neutral currents. However, the Higgs potential in this framework typically contains an unacceptable hierarchy between its dimensionful parameters (the $\\mu$-problem of gauge mediation). We show that the problem can be resolved if the Higgs potential arises dynamically once an intermediate U(1)' sector is integrated out rather than arising radiatively from some Yukawa interactions at the messenger scale. As an added benefit, such models may naturally avoid new contribution to CP violating amplitudes. The proposed framework is described, explicit examples are given and its phenomenology is explored. The $\\mu$ problem is resolved in this case by the low-energy U(1)' dynamics which could be tested in future collider experiments.

Paul Langacker; Nir Polonsky; Jing Wang

1999-05-05T23:59:59.000Z

76

Radiation shielding issues for MuCool test area at Fermilab  

DOE Green Energy (OSTI)

The MuCool Test Area (MTA) is an intense primary beam facility derived directly from the Fermilab Linac to test heat deposition and other technical concerns associated with the liquid hydrogen targets being developed for cooling intense muon beams. In this study the origin of the outgoing collimated neutron beam is examined. An alternative shielding option for MTA is investigated as well as the hypothetical worst case of experimental setup is considered.

Rakhno, I.; Johnstone, C.; /Fermilab

2005-03-01T23:59:59.000Z

77

Lx02hMac.seaAPPLaust!**?' *mu?q*?qStuffIt (c) ...  

Science Conference Proceedings (OSTI)

Lx02hMac.seaAPPLaust!**?'?*mu?q*?qStuffIt (c)1997-1998 Aladdin Systems, Inc., http://www.aladdinsys.com/StuffIt/. ...

2000-06-17T23:59:59.000Z

78

Dosimetric and mechanical characteristics of a commercial dynamic {mu}MLC used in SRS  

Science Conference Proceedings (OSTI)

Purpose: The aim of this work is to carry out mechanical and dosimetric assessments on a commercial dynamic micromulti leaf collimator system to be used for stereotactic radiosurgery (SRS) and stereotactic radiotherapy (SRT). Mechanical parameters such as leaf position accuracy with different gantry angles and leaf position reproducibility were measured. Also dosimetric measurements of the interleaf leakage, intraleaf transmission, penumbra width, and light field alignment were carried out. Furthermore, measurements of output factors (S{sub cp}) and in-air factors (S{sub c}) for the {mu}MLC system will be reported. Methods: EBT2 films were used to assess the leaf position error with gantry angle and after stress test, penumbra width and light field alignment. Leaf leakage was quantified using both EBT2 film and a pinpoint ion chamber. With regard to output factors, the pinpoint chamber was placed in a water phantom at 10 cm depth and 100 cm SSD. For in-air output factor measurements, 0.2 cm of brass was placed above the photon diode as build-up. Results: Measurements of mechanical parameters gave values of 0.05 cm (SD 0.035) for the average leaf position accuracy for different gantry angles and after stress test. Dosimetric measurements, yielded values of 0.22 {+-} 0.01 and 0.24 {+-} 0.01 cm, respectively, for side and head leaf penumbras. Also, average leaf abutting, leakage and transmission were found to be 0.65, 0.91, and 0.20%, respectively. Conclusions: (a) The add-on {mu}MLC system in combination with our LINAC has been commissioned to be used for clinical purposes and showed good agreement with published results for different {mu}MLC types. (b) This work has lead to the recommendation that leaves should be recalibrated after ten static beams or after each dynamic arc.

Galal, Mohamed M.; Keogh, Sinead; Khalil, Sultan [Physics Department, Hermitage Medical Clinic, Dublin 20, Ireland and Physics Unit, Kasr El-Aini Center of Oncology and Nuclear Medicine, Faculty of Medicine, Cairo University (Egypt); Physics Department, Hermitage Medical Clinic, Dublin 20 (Ireland)

2011-07-15T23:59:59.000Z

79

New Developments in TRI{mu}P and RIASH at KVI  

SciTech Connect

The status of the TRI{mu}P facility at KVI is reviewed. Recent results on ion catcher devices are described. A thermo-ionizer for use with alkali and earth-alkali elements is close to completion. Concerning the use of superfluid helium as stopping medium, evidence that second sound pulses can be used to extract ions from the helium surface has been obtained. Based on the observation of highly efficient ion transport in helium, neon and argon gas below about 100 K, we propose the operation of noble gas ion catchers at cryogenic temperatures.

Dendooven, P. [KVI, Zernikelaan 25, 9747 AA Groningen (Netherlands)

2006-04-26T23:59:59.000Z

80

Optimization of a Mu2e production solenoid heat and radiation shield using MARS15  

SciTech Connect

A Monte-Carlo study of several Mu2e Production Solenoid (PS) absorber (heat shield) versions using the MARS15 code has been performed. Optimizations for material as well as cost (amount of tungsten) have been carried out. Studied are such quantities as the number of displacements per atom (DPA) in the helium-cooled solenoid superconducting coils, power density and dynamic heat load in various parts of the PS and its surrounding structures. Prompt dose, residual dose, secondary particle flux are also simulated in the PS structures and the experimental hall. A preliminary choice of the PS absorber design is made on the ground of these studies.

Pronskikh, V.S.; Mokhov, N.V.; /Fermilab

2011-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "mu mol mol-1" 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

Theta-13 as a Probe of Mu-Tau symmetry for Leptons  

E-Print Network (OSTI)

Many experiments are being planned to measure the neutrino mixing parameter $\\theta_{13}$ using reactor as well as accelerator neutrino beams. In this note, the theoretical significance of a high precision measurement of this parameter is discussed. It is emphasized that it will provide crucial information about different ways to understand the origin of large atmospheric neutrino mixing and move us closer towards determining the neutrino mass matrix. For instance if exact $\\mu\\leftrightarrow \\tau$ symmetry in the neutrino mass matrix is assumed to be the reason for maximal $\

R. N. Mohapatra

2004-08-17T23:59:59.000Z

82

A Healthy Electron/Neutron EDM in D3/D7 mu-Split SUSY  

E-Print Network (OSTI)

Within the framework of N=1 gauged supergravity, using a phenomenological model which can be obtained locally as a Swiss-Cheese Calabi-Yau string-theoretic compactification with a mobile D3-brane localized on a nearly sLag three-cycle in the Calabi-Yau and fluxed stacks of wrapped D7-branes, and which provides a natural realization of mu-Split SUSY, we show that in addition to getting a significant value of electron/neutron EDM d_{e,n}/e at two-loop level, one can obtain a sizable contribution of d_{e,n}/e even at one-loop level. We obtain d_{e}/e ~ O(10^{-29}) cm from two-loop diagrams involving heavy sfermions and a light Higgs, and d_{e}/e ~ O(10^{-32}) cm from one-loop diagram involving heavy chargino and a light Higgs. Also, d_{n}/e ~ O(10^{-33}) cm from one-loop diagram involving SM-like quarks and Higgs. Next, by considering a Barr-Zee diagram involving W bosons and Higgs, and conjecturing that the CP-violating phase can appear from a linear combination of Higgs doublet obtained in the context of mu-split SUSY, we obtain d_{e,n}/e ~ O(10^{-27}) cm at two-loop level .

Mansi Dhuria; Aalok Misra

2013-08-14T23:59:59.000Z

83

The N=1 algebra W_\\infty[\\mu] and its truncations  

E-Print Network (OSTI)

We construct and classify the most general classical and quantum N=1 W_\\infty-algebras generated by the same spins as the singlet algebra of M fermions and M bosons in the vector representation of O(M) in the large M limit. This type of algebras appears in a recent N=1 version of the minimal model holography. Our analysis shows that there is a one parameter family W_\\infty[\\mu] of such algebras at every given central charge. We identify various truncations of W_\\infty[\\mu] with, on the one hand, (orbifolds of) the Drinfel'd-Sokolov reductions of the Lie superalgebras B(n,n), B(n-1,n), D(n,n) and D(n+1,n), and, on the other hand, (orbifolds of) three N=1 cosets. A closer inspection reveals that these cosets can be realized as a Drinfel'd-Sokolov reduction of B(n,n), D(n,n) and D(n+1,n). We then discuss the implications of our findings for the quantum version of the N=1 minimal model holography.

Candu, Constantin

2013-01-01T23:59:59.000Z

84

WATER-AMMONIUM ICES AND THE ELUSIVE 6.85 {mu}m BAND  

Science Conference Proceedings (OSTI)

The 6.85 {mu}m band observed in the spectra of young stellar objects has been analyzed recently and the most usually accepted assignment to the nu{sub 4} bending mode of NH{sub 4} {sup +} is still under debate. We present here a laboratory study of frozen solutions of NH{sub 4} {sup +}Cl{sup -} in water in an astrophysical range of concentrations and temperatures. The samples are prepared by hyper-quenching of liquid droplets on a cold substrate. The nu{sub 4} band of NH{sub 4} {sup +}, which is very strong in the pure crystal and in the liquid solution at ambient temperature, becomes almost blurred in IR spectra of the frozen solution. The effect of the chlorine anion is expected to be of little relevance in this study. The experimental results are supported by theoretical calculations, which predict a broad range of weak nu{sub 4} features for amorphous samples containing different ammonium environments. The present results indicate that the ammonium ion surrounded by water molecules only cannot suffice to explain this spectral feature. This paper contributes with new evidence to the discussion on the assignment of the 6.85 {mu}m band.

Mate, B.; Galvez, O.; Herrero, V. J.; Fernandez-Torre, D.; Moreno, M. A.; Escribano, R. [Instituto de Estructura de la Materia, CSIC, Serrano 123, 28006 Madrid (Spain)

2009-10-01T23:59:59.000Z

85

Airbreathing Laser Propulsion Experiments with 1 {mu}m Terawatt Pharos IIILaser: Part 2  

Science Conference Proceedings (OSTI)

This basic research study examines the physics of airbreathing laser propulsion at the extreme flux range of 1-2x10{sup 11} W/cm{sup 2}--within the air breakdown threshold for l {mu}m radiation--using the terawatt Pharos III neodymium-glass pulsed laser. Six different experimental setups were employed using a 34 mm line focus with 66 {mu}m focal waist, positioned near the flat impulse surface. The 2nd Campaign investigated impulse generation with the laser beam focused at grazing incidence across near horizontal target surfaces, with pulse energies ranging from 55 to 186 J, and pulse-widths of 2 to 30 ns FWHM. Laser generated impulse was measured with a horizontal Plexiglas registered ballistic pendulum equipped with either a steel target insert or 0.5 Tesla permanent magnet (NEIT-40), to quantify changes in the momentum coupling coefficient (C{sub M}). Part 2 of this 2-part paper covers Campaign no. 2 results including C{sub M} performance data, and long exposure color photos of LP plasma phenomena.

Myrabo, L. N.; Lyons, P. W.; Jones, R. A.; Liu, S. [Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180 (United States); Manka, C. [Space Plasma Branch, Plasma Physics Division, Naval Research Laboratory, Washington, D.C. (United States)

2011-11-10T23:59:59.000Z

86

Airbreathing Laser Propulsion Experiments with 1 {mu}m Terawatt Pharos III Laser: Part 1  

Science Conference Proceedings (OSTI)

This basic research study examines the physics of airbreathing laser propulsion at the extreme flux range of 1-2x10{sup 11} W/cm{sup 2}--within the air breakdown threshold for l {mu}m radiation--using the terawatt PHAROS III neodymium-glass pulsed laser. Six different experimental setups were tested using a 34 mm line focus with 66 {mu}m focal waist, positioned near the flat impulse surface. The first campaign investigated impulse generation with the beam oriented almost normal to the target surface, with energies ranging from 23 to 376 J, and pulses of 5 to 30 ns FWHM. Air breakdown/ plasma dynamics were diagnosed with GOI cameras and color photography. Laser generated impulse was quantified with both vertical pendulums and piezoelectric pressure transducers using the standard performance metric, C{sub M}--the momentum coupling coefficient. Part 1 of this 2-part paper covers Campaign no. 1 results including laser plasma diagnostics, pressure gage and vertical pendulum data.

Myrabo, L. N.; Lyons, P. W.; Jones, R. A.; Liu, S. [Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180 (United States); Manka, C. [Space Plasma Branch, Plasma Physics Division, Naval Research Laboratory, Washington, D.C. (United States)

2011-11-10T23:59:59.000Z

87

A Circulating Hydrogen Ultra-High Purification System for the MuCap Experiment  

E-Print Network (OSTI)

The MuCap experiment is a high-precision measurement of the rate for the basic electroweak process of muon capture, mu- + p -> n + nu . The experimental approach is based on an active target consisting of a time projection chamber (TPC) operating with pure hydrogen gas. The hydrogen has to be kept extremely pure and at a stable pressure. A Circulating Hydrogen Ultrahigh Purification System was designed at the Petersburg Nuclear Physics Institute (PNPI) to continuously clean the hydrogen from impurities. The system is based on an adsorption cryopump to stimulate the hydrogen flow and on a cold adsorbent for the hydrogen cleaning. It was installed at the Paul Scherrer Institute (PSI) in 2004 and performed reliably during three experiment runs. During several months long operating periods the system maintained the hydrogen purity in the detector on the level of 20 ppb for moisture, which is the main contaminant, and of better than 7 ppb and 5 ppb for nitrogen and oxygen, respectively. The pressure inside the TPC was stabilized to within 0.024% of 10 bar at a hydrogen flow rate of 3 standard liters per minute.

V. A. Ganzha; P. A. Kravtsov; O. E. Maev; G. N. Schapkin; G. G. Semenchuk; V. Trofimov; A. A. Vasilyev; M. E. Vznuzdaev; S. M. Clayton; P. Kammel; B. Kiburg; M. Hildebrandt; C. Petitjean; T. I. Banks; B. Lauss

2007-05-10T23:59:59.000Z

88

Enfmt Plaza. S. W.. Washingron, DC 200262174. Tekphonr: (202) 488~MU0  

Office of Legacy Management (LM)

369s 369s . I Suite 300, 955 L' Enfmt Plaza. S. W.. Washingron, DC 200262174. Tekphonr: (202) 488~MU0 7117-03.87.cdy.43 23 September 1987 CA Mr. Andrew Wallo, III, NE-23 Division of Facility 8 Site Decommissioning Projects U.S. Department of Energy Germantown, Maryland 20545 Dear Mr. Wallo: IhI . o-01 nA.os ELIMINATION RECOMMENDATION -- COLLEGES AND UNIVERSITIES iVA.0-05 kl Q.O3- The attached elimination recommendation was prepared in accordance ML.05 with your suggestion during our meeting on 22 September. The recommendation fiD.o-02 includes 26 colleges and universities identified.in Enclosure 4 to Aerospace letter subject: Status of Actions - FUSRAP Site List, dated MO.@ 27 May 1987; three institutions (Tufts College, University of Virginia, rJCllol

89

A red supergiant nebula at 25 micron: arcsecond scale mass-loss asymmetries of mu Cep  

E-Print Network (OSTI)

We present diffraction limited (0.6") 24.5micron Subaru/COMICS images of the red supergiant mu Cep. We report the detection of a circumstellar nebula, that was not detected at shorter wavelengths. It extends to a radius of at least 6" in the thermal infrared. On these angular scales, the nebula is roughly spherical, in contrast, it displays a pronounced asymmetric morphology closer in. We simultaneously model the azimuthally averaged intensity profile of the nebula and the observed spectral energy distribution using spherical dust radiative transfer models. The models indicate a constant mass-loss process over the past 1000 years, for mass-loss rates a few times 10^(-7) Msun/yr. This work supports the idea that at least part of the asymmetries in shells of evolved massive stars and supernovae may be due to the mass-loss process in the red supergiant phase.

W. J. de Wit; R. D. Oudmaijer; T. Fujiyoshi; M. G. Hoare; M. Honda; H. Kataza; T. Miyata; Y. K. Okamoto; T. Onaka; S. Sako; T. Yamashita

2008-08-09T23:59:59.000Z

90

Water vapor transmittance models for narrow bands in the 13 to 19. mu. m spectral region  

Science Conference Proceedings (OSTI)

The purpose of this report is to document the development of water vapor transmittance models for narrow bands (satellite sensor channels) in the 13 to 19 ..mu..m spectral region. The models are the result of research efforts of the author in 1971-1972 while on active duty with the US Air Force at the Air Force Global Weather Central (AFGWC). The models were developed for application in studies involving a temperature profiling sensor system carried aboard the satellites of the Defense Meteorological Satellite Program (DMSP), formerly DAPP. Recently, (Lovill et al., 1978; Luther et al., 1981) the models were implemented for studies concerned with methodologies to retrieve total atmospheric column ozone from measurements of newer DMSP Block 5D series satellite sensors with similar channels (see Nichols, 1975).

Weichel, R.L.

1983-10-01T23:59:59.000Z

91

Energy transfer and 1.54 {mu}m emission in amorphous silicon nitride films  

Science Conference Proceedings (OSTI)

Er-doped amorphous silicon nitride films with various Si concentrations (Er:SiN{sub x}) were fabricated by reactive magnetron cosputtering followed by thermal annealing. The effects of Si concentrations and annealing temperatures were investigated in relation to Er emission and excitation processes. Efficient excitation of Er ions was demonstrated within a broad energy spectrum and attributed to disorder-induced localized transitions in amorphous Er:SiN{sub x}. A systematic optimization of the 1.54 {mu}m emission was performed and a fundamental trade-off was discovered between Er excitation and emission efficiency due to excess Si incorporation. These results provide an alternative approach for the engineering of sensitized Si-based light sources and lasers.

Yerci, S.; Li, R. [Department of Electrical and Computer Engineering, Boston University, 8 Saint Mary's Street, Boston, Massachusetts 02215-2421 (United States); Kucheyev, S. O.; Buuren, T. van [Lawrence Livermore National Laboratory, Livermore, California 94551 (United States); Basu, S. N. [Division of Materials Science and Engineering, Boston University, 15 Saint Mary's Street, Brookline, Massachusetts 02446 (United States); Department of Mechanical Engineering, Boston University, 110 Cummington Street, Boston, Massachusetts 02215 (United States); Dal Negro, L. [Department of Electrical and Computer Engineering, Boston University, 8 Saint Mary's Street, Boston, Massachusetts 02215-2421 (United States); Division of Materials Science and Engineering, Boston University, 15 Saint Mary's Street, Brookline, Massachusetts 02446 (United States)

2009-07-20T23:59:59.000Z

92

Absolute Current Calibrations of 1muA CW Electron Beam  

SciTech Connect

The future experimental program at Jefferson Lab requires an absolute current calibration of a 1{mu}A CW electron beam to better than 1% accuracy. This paper presents the mechanical and electrical design of a Tungsten calorimeter that is being constructed to provide an accurate measurement of the deposited energy. The energy is determined by measuring the change in temperature after beam exposure. Knowledge of the beam energy then yields number of electrons stopped by the calorimeter during the exposure. Simulations show that the energy losses due to electromagnetic and hadronic losses are the dominant uncertainty. Details of the precision thermometry and calibration, mechanical design, thermal simulations and GEANT simulations will be presented.

A. Freyberger, M.E. Bevins, A.R. Day, P. Degtiarenko, A. Saha, S. Slachtouski, R. Gilman

2005-06-06T23:59:59.000Z

93

Studies of Nu-mu to Nu-e Oscillation Appearance in the MINOS Experiment  

SciTech Connect

The MINOS experiment uses a long baseline neutrino beam, measured 1 km downstream from its origin in the Near Detector at Fermilab, and 734 km later in the large underground Far Detector in the Soudan mine. By comparing these two measurements, MINOS can probe the atmospheric domain of the neutrino oscillation phenomenology with unprecedented precision. Besides the ability to perform a world leading determination of the {Delta}m{sub 23}{sup 2} and {theta}{sub 23} parameters, via {nu}{sub {mu}} flux disappearance, MINOS has the potential to make a leading measurement of {nu}{sub {mu}} {yields} {nu}{sub e} oscillations in the atmospheric sector by looking for {nu}{sub e} appearance at the Far Detector. The observation of {nu}{sub e} appearance, tantamount to establishing a non-zero value of the {theta}{sub 13} mixing angle, opens the way to studies of CP violation in the leptonic sector, the neutrino spectral mass pattern ordering and neutrino oscillations in matter, the driving motivations of the next generation of neutrino experiments. In this thesis, we study the MINOS potential for measuring {theta}{sub 13} in the context of the MINOS Mock Data Challenge using a multivariate discriminant analysis method. We show the method's validity in the application to {nu}{sub e} event classification and background identification, as well as in its ability to identify a {nu}{sub e} signal in a Mock Data sample generated with undisclosed parameters. An independent shower reconstruction method based on three-dimensional hit matching and clustering was developed, providing several useful discriminator variables used in the multivariate analysis method. We also demonstrate that within 2 years of running, MINOS has the potential to improve the current best limit on {theta}{sub 13}, from the CHOOZ experiment, by a factor of 2.

Pereira e Sousa, Alexandre Bruno; /Tufts U.

2005-12-01T23:59:59.000Z

94

Process for removal of water and silicon mu-oxides from chlorosilanes  

DOE Patents (OSTI)

A scavenger composition having utility for removal of water and silicon mu-oxide impurities from chlorosilanes, such scavenger composition comprising: (a) a support; and (b) associated with the support, one or more compound(s) selected from the group consisting of compounds of the formula: R.sub.a-x MCl.sub.x wherein: M is a metal selected from the group consisting of the monovalent metals lithium, sodium, and potassium; the divalent metals magnesium, strontium, barium, and calcium; and the trivalent metal aluminum; R is alkyl; a is a number equal to the valency of metal M; and x is a number having a value of from 0 to a, inclusive; and wherein said compound(s) of the formula R.sub.a-x MCl.sub.x have been activated for impurity-removal service by a reaction scheme selected from those of the group consisting of: (i) reaction of such compound(s) with hydrogen chloride to form a first reaction product therefrom, followed by reaction of the first reaction product with a chlorosilane of the formula: SiH.sub.4-y Cl.sub.y, wherein y is a number having a value of from 1 to 3, inclusive; and (ii) reaction of such compound(s) with a chlorosilane of the formula: SiH.sub.4-y Cl.sub.y wherein y is a number having a value of 1 to 3, inclusive. A corresponding method of making the scavenger composition, and of purifying a chlorosilane which contains oxygen and silicon mu-oxide impurities, likewise are disclosed, together with a purifier apparatus, in which a bed of the scavenger composition is disposed. The composition, purification process, and purifier apparatus of the invention have utility in purifying gaseous chlorosilanes which are employed in the semiconductor industry as silicon source reagents for forming epitaxial silicon layers.

Tom, Glenn M. (New Milford, CT); McManus, James V. (Danbury, CT)

1992-03-10T23:59:59.000Z

95

Composition, process, and apparatus, for removal of water and silicon mu-oxides from chlorosilanes  

DOE Patents (OSTI)

A scavenger composition having utility for removal of water and silicon mu-oxide impurities from chlorosilanes, such scavenger composition comprising: (a) a support; and (b) associated with the support, one or more compound(s) selected from the group consisting of compounds of the formula: R.sub.a-x MCl.sub.x wherein: M is a metal selected from the group consisting of the monovalent metals lithium, sodium, and potassium; the divalent metals magnesium, strontium, barium, and calcium; and the trivalent metal aluminum; R is alkyl; a is a number equal to the valency of metal M; and x is a number having a value from 0 to a, inclusive; and wherein said compound(s) of the formula R.sub.a-x MCl.sub.x have been activated for impurity-removal service by a reaction scheme selected from those of the group consisting of: (i) reaction of such compound(s) with hydrogen chloride to form a first reaction product therefrom, followed by reaction of the first reaction product with a chlorosilane of the formula: SiH.sub.4"y Cl.sub.y, wherein y is a number having a value of from 1 to 3, inclusive; and (ii) reaction of such compound(s) with a chlorosilane of the formula: SiH.sub.4-y Cl.sub.y wherein y is a number having a value of 1 to 3, inclusive. A corresponding method of making the scavenger composition, and of purifying a chlorosilane which contains oxygen and silicon mu-oxide impurities, likewise are disclosed, together with a purifier apparatus, in which a bed of the scavenger composition is disposed. The composition, purification process, and purifier apparatus of the invention have utility in purifying gaseous chlorosilanes which are employed in the semiconductor industry as silicon source reagents for forming epitaxial silicon layers.

Tom, Glenn M. (New Milford, CT); McManus, James V. (Danbury, CT)

1991-10-15T23:59:59.000Z

96

Water vapor on supergiants. The 12 micron TEXES spectra of mu Cephei  

E-Print Network (OSTI)

Several recent papers have argued for warm, semi-detached, molecular layers surrounding red giant and supergiant stars, a concept known as a MOLsphere. Spectroscopic and interferometric analyses have often corroborated this general picture. Here, we present high-resolution spectroscopic data of pure rotational lines of water vapor at 12 microns for the supergiant mu Cephei. This star has often been used to test the concept of molecular layers around supergiants. Given the prediction of an isothermal, optically thick water-vapor layer in Local Thermodynamic Equilibrium around the star (MOLsphere), we expected the 12 micron lines to be in emission or at least in absorption but filled in by emission from the molecular layer around the star. Our data, however, show the contrary; we find definite absorption. Thus, our data do not easily fit into the suggested isothermal MOLsphere scenario. The 12 micron lines, therefore, put new, strong constraints on the MOLsphere concept and on the nature of water seen in signatures across the spectra of early M supergiants. We also find that the absorption is even stronger than that calculated from a standard, spherically symmetric model photosphere without any surrounding layers. A cool model photosphere, representing cool outer layers is, however, able to reproduce the lines, but this model does not account for water vapor emission at 6 microns. Thus, a unified model for water vapor on mu Cephei appears to be lacking. It does seem necessary to model the underlying photospheres of these supergiants in their whole complexity. The strong water vapor lines clearly reveal inadequacies of classical model atmospheres.

N. Ryde; M. J. Richter; G. M. Harper; K. Eriksson; D. L. Lambert

2006-03-15T23:59:59.000Z

97

Antihydrogen $(\\bar{\\rm{H}})$ and muonic antihydrogen $(\\bar{\\rm{H}}_{\\mu})$ formation in low energy three-charge-particle collisions  

E-Print Network (OSTI)

A few-body formalism is applied for computation of two different three-charge-particle systems. The first system is a collision of a slow antiproton, $\\bar{\\rm{p}}$, with a positronium atom: Ps$=(e^+e^-)$ $-$ a bound state of an electron and a positron. The second problem is a collision of $\\bar{\\rm{p}}$ with a muonic muonium atom, i.e. true muonium $-$ a bound state of two muons one positive and one negative: Ps$_{\\mu}=(\\mu^+\\mu^-)$. The total cross section of the following two reactions: $\\bar{\\rm p}+(e^+e^-) \\rightarrow \\bar{\\rm{H}} + e^-$ and $\\bar{\\rm p}+(\\mu^+\\mu^-) \\rightarrow \\bar{\\rm{H}}_{\\mu} + \\mu^-$, where $\\bar{\\rm{H}}=(\\bar{\\rm p}e^+)$ is antihydrogen and $\\bar{\\rm{H}}_{\\mu}=(\\bar{\\rm p}\\mu^+)$ is a muonic antihydrogen atom, i.e. a bound state of $\\bar{\\rm{p}}$ and $\\mu^+$, are computed in the framework of a set of coupled two-component Faddeev-Hahn-type (FH-type) equations. Unlike the original Faddeev approach the FH-type equations are formulated in terms of only two but relevant components: $\\...

Sultanov, Renat A

2013-01-01T23:59:59.000Z

98

Apparatus and method for generating continuous wave 16. mu. m laser radiation using gaseous CF/sub 4/  

DOE Patents (OSTI)

Apparatus and method for generating continuous wave 16 ..mu..m laser radiation using gaseous CF/sub 4/. Laser radiation at 16 ..mu..m has been observed in a cooled static cell containing low pressure CF/sub 4/ optically pumped by an approximately 3 W output power c-w CO/sub 2/ laser. The laser cavity employed was a multiple-pass off-axis-path two spherical mirror ring resonator. Unidirectional CF/sub 4/ laser output power at 615 cm/sup -1/ exceeded 2 mW. Computer calculations indicate that for modest pump powers of about 40 W, approximately 1 W of emitted laser radiation at 16 ..mu..m might be obtained.

Telle, J.M.

1984-05-01T23:59:59.000Z

99

Apparatus and method for generating continuous wave 16 .mu.m laser radiation using gaseous CF.sub.4  

DOE Patents (OSTI)

Apparatus and method for generating continuous wave 16 .mu.m laser radiation using gaseous CF.sub.4. Laser radiation at 16 .mu.m has been observed in a cooled static cell containing low pressure CF.sub.4 optically pumped by an approximately 3 W output power cw CO.sub.2 laser. The laser cavity employed was a multiple-pass off-axis-path two spherical mirror ring resonator. Unidirectional CF.sub.4 laser output power at 615 cm.sup.-1 exceeded 2 mW. Computer calculations indicate that for modest pump powers of about 40 W, approximately 1 W of emitted laser radiation at 16 .mu.m might be obtained.

Telle, John M. (Los Alamos, NM)

1986-01-01T23:59:59.000Z

100

150 {mu}A 18F{sup -} target and beam port upgrade for the IBA 18/9 cyclotron  

SciTech Connect

A high power ({approx}3 kW) target platform has been developed for the IBA 18/9 cyclotron. New designs for the airlock, collimator and target subsystems have been fabricated and deployed. The primary project goal is reliable commercial production of 18F{sup -} at 150 {mu}A or greater, while secondary goals include improving serviceability and extending service intervals relative to OEM systems. Reliable operation in a production environment has been observed at beam currents up to 140 {mu}A. Challenges include ion source lifetime and localized peaking in the beam intensity distribution.

Stokely, M. H.; Peeples, J. L.; Poorman, M. C.; Magerl, M.; Siemer, T.; Brisard, P.; Wieland, B. W. [Bruce Technologies Inc., 1939 Evans Rd. Cary, NC 27513 (United States); IBA Molecular, 801 Forestwood Dr. Romeoville, IL 60446 (United States); Bruce Technologies Inc., 1939 Evans Rd. Cary, NC 27513 (United States)

2012-12-19T23:59:59.000Z

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101

SEARCH FOR CHARGED PARTICLES WITH REST MASS BETWEEN THAT OF THE ELECTRON AND MU-MESON  

SciTech Connect

An attempt was made to produce charged particles with rest mass between that of the electron and mu meson (hereafter called submuons) by electromagnetic pair pronduction from C nuclei. The incident photon beam was obtained by bombarding a thick C block with an 800-Mev electron beam. The same block served as the target for the production process. Only one member of the produced pair was to be observed. The momentum of the secondary particles (300 Mev/c) was determined by a zero-dispersion, doublefocusing magnetic spectrometer. The particles traversing the spectrometer were detected by a 6-courter telescope, in which the counters were separated by various thicknesses of lead. The signals from the counters were put in coincidence in a 6-channel fast-resolution coincidence circuit. The telescope was sensitive to submuons with rest masses between 175 and 10 electron masses. The expected counting rates were calculated using the Bethe-Heitler and Pauli-Weisskopf formulas for spin 1/2 and spin 0 submuons, respectively. An integration over the variables of the unobserved member of the pair, and thus over the momentum transfer to the C nucleus was performed. The nucleus was treated by a sum rale calculation to take into account both the finite nuclear size and the elastic and inelastic contributions to the cross section. The resulting cross sections were multiplied by the total photon spectrum and the results integrated over the available photon energy. The total photon spectrum included both the real photon spectrum from electron bremsstrshlung in the C target and the virtual photon spectrum associated with the electrons themselves. The expected courting rates varied from 70 to 12,500 counts per l0t7 incident electrons for spin 1/2 submuons with rest masses between 175 and 25 electron masses and half lives in the microsecond region or longer. The similar rates for spin 0 submuons were 10 to 2870 counts. Since only 4.10 plus or minus 2.05 counts per 10/sup 17/ incident electrons were observed, it seems highly unlikely thai particles with rest mass between that of the electron and mu-meson exist. (M.P.G.)

Coward, D.H.

1963-01-01T23:59:59.000Z

102

Building a simulator in the $\\mu$CRL toolbox -- A case-study in modern software engineering  

Science Conference Proceedings (OSTI)

In this paper we report on the current status of our development of a simulator tool in the $\\mu CRL$ Toolbox. The tool is built from (reusable) software components which are implemented in different languages like C, TCL/TK and ASF+SDF. The components ...

Henri P. Korver

1996-08-01T23:59:59.000Z

103

Anisotropic Interfacial Free Energies of the Hard-Sphere Crystal-Melt Interfaces Yan Mu, Andrew Houk, and Xueyu Song*  

E-Print Network (OSTI)

Anisotropic Interfacial Free Energies of the Hard-Sphere Crystal-Melt Interfaces Yan Mu, Andrew-melt interfacial free energy calculations using capillary wave approach. Using this method, we have calculated the free energies of the fcc crystal-melt interfaces for the hard-sphere system as a function of crystal

Song, Xueyu

104

FIRST SCIENCE OBSERVATIONS WITH SOFIA/FORCAST: 6-37 {mu}m IMAGING OF ORION BN/KL  

SciTech Connect

The Becklin-Neugebauer/Kleinmann-Low (BN/KL) region of the Orion Nebula is the nearest region of high-mass star formation in our galaxy. As such, it has been the subject of intense investigation at a variety of wavelengths, which have revealed it to be brightest in the infrared to submillimeter wavelength regime. Using the newly commissioned SOFIA airborne telescope and its 5-40 {mu}m camera FORCAST, images of the entire BN/KL complex have been acquired. The 31.5 and 37.1 {mu}m images represent the highest resolution observations ({approx}<4'') ever obtained of this region at these wavelengths. These observations reveal that the BN object is not the dominant brightness source in the complex at wavelengths {>=} 31.5 {mu}m and that this distinction goes instead to the source IRc4. It was determined from these images and derived dust color temperature maps that IRc4 is also likely to be self-luminous. A new source of emission has also been identified at wavelengths {>=} 31.5 {mu}m that coincides with the northeastern outflow lobe from the protostellar disk associated with radio source I.

De Buizer, James M.; Becklin, E. E.; Zinnecker, Hans; Shuping, Ralph Y.; Vacca, William D. [SOFIA-USRA, NASA Ames Research Center, MS N211-3, Moffett Field, CA 94035 (United States); Morris, Mark R. [Department of Physics and Astronomy, University of California, Los Angeles, CA 90095-1547 (United States); Herter, Terry L.; Adams, Joseph D., E-mail: jdebuizer@sofia.usra.edu [Center for Radiophysics and Space Research, Cornell University, 208 Space Sciences Building, Ithaca, NY 14853 (United States)

2012-04-20T23:59:59.000Z

105

Studies of Velocity Fluctuations in the Lower Atmosphere Using the MU Radar. Part II: Momentum Fluxes and Energy Densities  

Science Conference Proceedings (OSTI)

This paper describes a study of the frequency spectra, the vertical profiles of energy density, and the momentum flux of the motion field observed during a six-day campaign in March 1986 using the MU Radar in Shigaraki, Japan. Our results reveal ...

David C. Fritts; Toshitaka Tsuda; Thomas E. VanZandt; Steven A. Smith; Toru Sato; Shoichiro Fukao; Susumu Kato

1990-01-01T23:59:59.000Z

106

Neutrino interactions with e/sup +/. mu. /sup -/ and multiple K/sup 0/'s. [Branching ratio  

DOE Green Energy (OSTI)

A scan for directly produced positrons in 5,000 neutrino interactions in the neon (21 percent) hydrogen filled bubble chamber at Fermilab has yielded 15 events, 9 of which have ..mu../sup -/'s identified in the external muon identifier. On correcting for detection efficiency one obtains sigma(e/sup +/..mu../sup -/)/sigma(..mu../sup -/) approximately 1 x 10/sup -2/ for E/sub e/sup +// > .8 GeV and E/sub ..nu../ > 5 GeV. The kaon multiplicity is unexpectedly high. Eleven of the events have one or more Vees and three have two or more. Among the 11 events are two clear ..lambda..'s and two ambiguous K/sup 0//..lambda... There are four events with identifiable charged kaons. A 16th e/sup +/ event (9) is a definite ..nu../sub e/. From this information one concludes that the kaon multiplicity is 2 +- .6 K/sup 0/'s and 2 +- 1 K/sup + -/'s per interaction. From the observation

mu../sup -//>/

= 6.6, one concludes that the e/sup +/'s are probably not uniquely from heavy lepton decay. From a variety of analyses involving the e/sup +/ and/or K/sup 0/'s one learns that the mass of the hadron (C) that produces the e/sup +/'s is greater than 1.6 GeV. By determining the fraction of normal charged current (CC) events that have K/sup 0//sub s/ ..-->.. ..pi../sup +/..pi../sup -/ one is able to compare this fraction with the fraction of CC events that have e/sup +/..mu../sup -/ (K/sup 0//sub s/ ..-->.. ..pi../sup +/..pi../sup -/) to establish a conservative lower limit to the semileptonic branching ratio, C ..-->.. (e/sup +/ and ..mu../sup +/) ..nu../C ..-->.. all > 0.33 (1 +- .42), provided that the same number of K/sup 0//sub s/ exists in thenonleptonic decays as in the semileptonic ones, and that the phase space for ..mu../sup +/ and e/sup +/ are nearly equal. There is no compelling evidence for an energy threshold and there is a hint of some neutral current events among the e/sup +/ events.

Stevenson, M.L.

1976-07-01T23:59:59.000Z

107

Optimization of Extinction Efficiency in the 8-GeV Mu2e Beam Line  

SciTech Connect

A muon-to-electron conversion experiment at Fermilab, Mu2e, is being designed to probe for new physics beyond the standard model at mass scales up to 10{sup 4} TeV. For this experiment, the advance in experimental sensitivity will be four orders of magnitude when compared to existing data on charged lepton flavor violation. The muon beam will be produced by delivering a proton beam contained in short 100-ns bunches onto a muon production target, with an inter-bunch separation of about 1700 ns. A critical requirement of the experiment is to ensure a low level of background at the muon detector consistent with the required sensitivity. To meet the sensitivity requirement, protons that reach the target between bunches must be suppressed by an enormous factor, so that an extinction factor, defined as a number of background protons between main bunches per proton in such a bunch, should not exceed 10{sup -9}. This paper describes the advanced beam optics and results of numerical modeling with STRUCT and MARS codes for a beam line with a collimation system that allows us to achieve the experimental extinction factor of one per billion.

Rakhno, I.L.; Drozhdin, A.I.; Johnstone, C.; Mokhov, N.V.; Prebys, E.; /Fermilab

2012-05-11T23:59:59.000Z

108

musrfit: A free platform-independent framework for muSR data analysis  

E-Print Network (OSTI)

A free data-analysis framework for muSR has been developed. musrfit is fully written in C++, is running under GNU/Linux, Mac OS X, as well as Microsoft Windows, and is distributed under the terms of the GNU GPL. It is based on the CERN ROOT framework and is utilizing the Minuit optimization routines for fitting. It consists of a set of programs allowing the user to analyze and visualize the data. The fitting process is controlled by an ascii-input file with an extended syntax. A dedicated text editor is helping the user to create and handle these files in an efficient way, execute the fitting, show the data, get online help, and so on. A versatile tool for the generation of new input files and the extraction of fit parameters is provided as well. musrfit facilitates a plugin mechanism allowing to invoke user-defined functions. Hence, the functionality of the framework can be extended with a minimal amount of overhead for the user. Currently, musrfit can read the following facility raw-data files: PSI-BIN, MDU...

Suter, A

2011-01-01T23:59:59.000Z

109

The muonic He atom and a preliminary study of the He-4 mu + H-2 reaction  

DOE Green Energy (OSTI)

The muonic atom 4Heu has the composition a++u-e-, and is formed by stopping negative muons in He doped with a small amount of NH3 (or Xe). It may be regarded as a unique heavy H-atom isotope with a mass of 4.1 amu. As such, the study of its chemical reaction rates and comparison with those of the well-known light Mu atom (0.113amu) allows unprecedented tests of kinetic isotope effects over a range of 36 in mass. As a first example, and one which is of most fundamental interest, we have begun kinetics studies of the Heu + H2 - HeuH + H reaction in the gas phase. The first measurements, at 295K, give a rate constant of kHei = 4:1 - 0:7 x 10-16 cm3 molec-1 s-1. In comparison, variational transition state calculations give a value of 2:46 x 10-16 cm3 molec-1 s-1, some what below the measurement, despite the large error bar, raising the possibility that the calculations, on a nessentially exact potential energy surface, have underestimated the amount of quantum tunneling involved, even for this heavyH-atom isotope.

Arseneau, Donald J.; Fleming, Donald G.; Sukhorukov, Oleksandr; Brewer, Jess H.; Garrett, Bruce C.; Truhlar, Donald G.

2009-04-15T23:59:59.000Z

110

A Tracker for the Mu3e Experiment based on High-Voltage Monolithic Active Pixel Sensors  

E-Print Network (OSTI)

The Mu3e experiment searches for the lepton flavour violating decay mu+ -> e+e-e+, aiming for a branching fraction sensitivity of 10^-16. This requires an excellent momentum resolution for low energy electrons, high rate capability and a large acceptance. In order to minimize multiple scattering, the amount of material has to be as small as possible. These challenges can be met with a tracker built from high-voltage monolithic active pixel sensors (HV-MAPS), which can be thinned to 50 um and which incorporate the complete read-out electronics on the sensor chip. To further minimise material, the sensors are supported by a mechanical structure built from 25 um thick Kapton foil and cooled with gaseous helium.

Berger, Niklaus; Bachmann, Sebastian; Kiehn, Moritz; Peri?, Ivan; Perrevoort, Ann-Kathrin; Philipp, Raphael; Schning, Andr; Stumpf, Kevin; Wiedner, Dirk; Windelband, Bernd; Zimmermann, Marco

2013-01-01T23:59:59.000Z

111

A Tracker for the Mu3e Experiment based on High-Voltage Monolithic Active Pixel Sensors  

E-Print Network (OSTI)

The Mu3e experiment searches for the lepton flavour violating decay mu+ -> e+e-e+, aiming for a branching fraction sensitivity of 10^-16. This requires an excellent momentum resolution for low energy electrons, high rate capability and a large acceptance. In order to minimize multiple scattering, the amount of material has to be as small as possible. These challenges can be met with a tracker built from high-voltage monolithic active pixel sensors (HV-MAPS), which can be thinned to 50 um and which incorporate the complete read-out electronics on the sensor chip. To further minimise material, the sensors are supported by a mechanical structure built from 25 um thick Kapton foil and cooled with gaseous helium.

Niklaus Berger; Heiko Augustin; Sebastian Bachmann; Moritz Kiehn; Ivan Peri?; Ann-Kathrin Perrevoort; Raphael Philipp; Andr Schning; Kevin Stumpf; Dirk Wiedner; Bernd Windelband; Marco Zimmermann

2013-09-30T23:59:59.000Z

112

Positive-tone silylated, dry-developed, deep ultraviolet resist with 0. 2 [mu]m resolution  

SciTech Connect

This paper describes the development of a surface-imaging process for a positive-tone silylated, dry-developed bilayer resist which has 0.2 [mu]m resolution and an aspect ratio of 4.5 using deep-UV (248 nm) exposure. The many processing variables such as thermal treatment parameters, silylation conditions, and etching conditions were examined to determine their effects on lithographic performance in terms of resolution, feature size linearity, focus latitude, and sensitivity. Critical to the success of the process are: the bilayer structure which restricts diffusion of the Si, the use of a disilane reagent to increase the Si content of the masking layer, limiting migration of photogenerated acid by the appropriate choice of softbake and post-exposure bake temperatures, initial etching with an Ar/Cl[sub 2] mixture to remove the thin layer of silylated resist in the exposed areas, and employing CO[sub 2] instead of O[sub 2] as the etching gas to eliminate lateral etching of the features. With this process we have obtained good critical dimension linearity down to 0.25 [mu]m for bright-field and dark-field lines and spaces as well as isolated lines and isolated spaces. The dose required is [similar to]75 mJ/cm[sup 2] and the dose latitude is [plus minus]6%. Focus latitude is at least [plus minus]0.4 [mu]m. We also observe no environmental effects on sensitivity or resolution.

Hutton, R.S.; Stein, S.M.; Boyce, C.H.; Cirelli, R.A.; Taylor, G.N. (AT T Bell Laboratories, Murray Hill, New Jersey 07974 (United States)); Baiocchi, F.A.; Kovalchick, J. (AT T Bell Laboratories, Allentown, Pennsylvania 18103 (United States)); Wheeler, D.R. (Sandia National Laboratory, Albuquerque, New Mexico 87185 (United States))

1994-11-01T23:59:59.000Z

113

Thermal emission from WASP-24b at 3.6 and 4.5 {\\mu}m  

E-Print Network (OSTI)

Aims. We observe occultations of WASP-24b to measure brightness temperatures and to determine whether or not its atmosphere exhibits a thermal inversion (stratosphere). Methods. We observed occultations of WASP-24b at 3.6 and 4.5 {\\mu}m using the Spitzer Space Telescope. It has been suggested that there is a correlation between stellar activity and the presence of inversions, so we analysed existing HARPS spectra in order to calculate log R'HK for WASP-24 and thus determine whether or not the star is chromospherically active. We also observed a transit of WASP-24b in the Str\\"{o}mgren u and y bands, with the CAHA 2.2-m telescope. Results. We measure occultation depths of 0.159 \\pm 0.013 per cent at 3.6 {\\mu}m and 0.202 \\pm 0.018 per cent at 4.5 {\\mu}m. The corresponding planetary brightness temperatures are 1974 \\pm 71 K and 1944 \\pm 85 K respectively. Atmosphere models with and without a thermal inversion fit the data equally well; we are unable to constrain the presence of an inversion without additional oc...

Smith, A M S; Madhusudhan, N; Southworth, J; Cameron, A Collier; Harrington, J; Hellier, C; Maxted, P F L; Pollacco, D; Queloz, D; Smalley, B; Triaud, A H M J; Wheatley, P J

2012-01-01T23:59:59.000Z

114

Efficient pulsed Cr{sup 2+}:CdSe laser continuously tunable in the spectral range from 2.26 to 3.61 {mu}m  

SciTech Connect

The efficient lasing of a Cr{sup 2+}:CdSe single crystal pumped by 1.94-{mu}m, 300-{mu}s pulses from a Tm:YAP laser was obtained. The Cr{sup 2+}:CdSe laser with a nonselective resonator emitted up to 17 mJ at a wavelength of {approx}2.65 {mu}m with the quantum slope efficiency of 63% with respect to the absorbed pump energy. The absorption coefficient of the Cr{sup 2+}:CdSe crystal at the laser wavelength did not exceed 0.045 cm{sup -1}. By using a resonator with a dispersion prism, the laser wavelength was continuously tuned in the spectral range from 2.26 to 3.61 {mu}m. (lasers)

Akimov, V A [Moscow Institute of Physics and Technology (State University), Dolgoprudnyi, Moscow Region (Russian Federation); Kozlovskii, V I; Korostelin, Yu V; Landman, A I; Podmar'kov, Yu P; Skasyrskii, Ya K; Frolov, M P [P.N. Lebedev Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

2008-03-31T23:59:59.000Z

115

FIRST SCIENCE OBSERVATIONS WITH SOFIA/FORCAST: 6-37 {mu}m IMAGING OF THE CENTRAL ORION NEBULA  

Science Conference Proceedings (OSTI)

We present new mid-infrared images of the central region of the Orion Nebula using the newly commissioned Stratospheric Observatory For Infrared Astronomy airborne telescope and its 5-40 {mu}m camera FORCAST. The 37.1 {mu}m images represent the highest resolution observations ({approx}<4'') ever obtained of this region at these wavelengths. After BN/KL (which is described in a separate paper in this issue), the dominant source at all wavelengths except 37.1 {mu}m is the Ney-Allen Nebula, a crescent-shaped extended source associated with {theta}{sup 1} D Ori. The morphology of the Ney-Allen nebula in our images is consistent with the interpretation that it is ambient dust swept up by the stellar wind from {theta}{sup 1} D Ori, as suggested by Smith et al. in 2005. Our observations also reveal emission from two 'proplyds' (proto-planetary disks), and a few embedded young stellar objects (YSOs; IRc 9, and OMC1-S IRS1, 2, and 10). The spectral energy distribution for IRc 9 is presented and fitted with standard YSO models from Robitaille et al. in 2007 to constrain the total luminosity, disk size, and envelope size. The diffuse, nebular emission we observe at all FORCAST wavelengths is most likely from the background photodissociation region (PDR) and shows structure that coincides roughly with H{alpha} and [N II] emission. We conclude that the spatial variations in the diffuse emission are likely due to undulations in the surface of the background PDR.

Shuping, R. Y. [Space Science Institute, 4750 Walnut St., Suite 205, Boulder, CO 80301 (United States); Morris, Mark R. [Department of Physics and Astronomy, University of California, Los Angeles, CA 90095-1547 (United States); Herter, Terry L.; Adams, Joseph D.; Gull, G. E.; Schoenwald, J.; Henderson, C. P. [Center for Radiophysics and Space Research, Cornell University, 208 Space Sciences Building, Ithaca, NY 14853 (United States); Becklin, E. E.; De Buizer, James M.; Vacca, William D.; Zinnecker, Hans [SOFIA-USRA, NASA Ames Research Center, MS N211-3, Moffett Field, CA 94035 (United States); Thomas Megeath, S., E-mail: rshuping@spacescience.org [Department of Physics and Astronomy, University of Toledo, 2801 W. Bancroft St., Toledo, OH 43606 (United States)

2012-04-20T23:59:59.000Z

116

Measurement of the nu(mu)-CCQE cross-section in the SciBooNE experiment  

SciTech Connect

SciBooNE is a neutrino and anti-neutrino cross-section experiment at Fermilab, USA. The SciBooNE experiment is summarized and two independent CCQE analyses are described. For one of the analyses, an absolute {nu}{sub {mu}}-CCQE cross section in the neutrino energy region (0.6-1.6) GeV is shown and the technique developed for such a purpose is also explained. The total cross section measured over this energy range agrees well with expectations, based on the NEUT event generator and using a value of 1.21 GeV for the CCQE axial mass.

Alcaraz-Aunion, Jose Luis; /Barcelona, IFAE; Walding, Joseph; /Imperial Coll., London

2009-09-01T23:59:59.000Z

117

$B_s\\to D_s/B\\to D$ Semileptonic Form-Factor Ratios and Their Application to BR($B^0_s\\to \\mu^+\\mu^-$)  

SciTech Connect

We calculate form-factor ratios between the semileptonic decays {bar B}{sup 0} {yields} D{sup +} {ell}{sup -}{bar {nu}} and {bar B}{sub s}{sup 0} {yields} D{sub s}{sup +}{ell}{sup -}{bar {nu}} with lattice QCD. These ratios are a key theoretical input in a new strategy to determine the fragmentation fractions of the neutral B decays, which are needed for measurements of BR(B{sub s}{sup 0} {yields} {mu}{sup +}{mu}{sup -}). They use the MILC ensembles of gauge configurations with 2 + 1 flavors of sea quarks at two lattice spacings of approximately 0.12 fm and 0.09 fm. We use the model-independent z parametrization to extrapolate their simulation results at small recoil toward maximum recoil. The results for the form-factor ratios are {line_integral}{sub 0}{sup (s)} (M{sub {pi}}{sup 2})/{line_integral}{sub 0}{sup (d)} (M{sub K}{sup 2}) = 1.046(44){sub stat.}(15){sub syst.} and {line_integral}{sub 0}{sup (s)} (M{sub {pi}}{sup 2})/{line_integral}{sub 0}{sup (d)} (M{sub {pi}}{sup 2}) = 1.054(47){sub stat.}(17){sub syst.}. In contrast to a QCD sum-rule calculation, no significant departure from U-spin (d {leftrightarrow} s) symmetry is observed.

Bailey, Jon A.; /Seoul Natl. U.; Bazavov, A.; /Brookhaven; Bernard, C.; /Washington U., St. Louis; Bouchard, C.M.; /Illinois U., Urbana /Fermilab /Ohio State U.; DeTar, C.; /Utah U.; Du, Daping; /Iowa State U. /Fermilab /Illinois U., Urbana; El-Khadra, A.X.; /Illinois U., Urbana; Foley, J.; /Utah U.; Freeland, E.D.; /Illinois U., Urbana /Benedictine U.; Gamiz, E.; /Fermilab /Granada U.; Gottlieb, Steven; /Indiana U. /APS, New York

2012-02-01T23:59:59.000Z

118

THE MASS LOSS RETURN FROM EVOLVED STARS TO THE LARGE MAGELLANIC CLOUD: EMPIRICAL RELATIONS FOR EXCESS EMISSION AT 8 AND 24 {mu}m  

SciTech Connect

We present empirical relations describing excess emission from evolved stars in the Large Magellanic Cloud (LMC) using data from the Spitzer Space Telescope Surveying the Agents of a Galaxy's Evolution (SAGE) survey which includes the Infrared Array Camera (IRAC) 3.6, 4.5, 5.8, and 8.0 {mu}m and Multiband Imaging Photometer (MIPS) 24, 70, and 160 {mu}m bands. We combine the SAGE data with the Two Micron All Sky Survey (2MASS; J, H, and K {sub s}) and the optical Magellanic Cloud Photometric Survey (MCPS; U, B, V, and I) point source catalogs in order to create complete spectral energy distributions (SEDs) of the asymptotic giant branch (AGB) star candidates in the LMC. AGB star outflows are among the main producers of dust in a galaxy, and this mass loss results in an excess in the fluxes observed in the 8 and 24 {mu}m bands. The aim of this work is to investigate the mass loss return by AGB stars to the interstellar medium of the LMC by studying the dependence of the infrared excess flux on the total luminosity. We identify oxygen-rich, carbon-rich, and extreme AGB star populations in our sample based on their 2MASS and IRAC colors. The SEDs of oxygen- and carbon-rich AGB stars are compared with appropriate stellar photosphere models to obtain the excess flux in all the IRAC bands and the MIPS 24 {mu}m band. Extreme AGB stars are dominated by circumstellar emission at 8 and 24 {mu}m; thus we approximate their excesses with the flux observed in these bands. We find about 16,000 O-rich, 6300 C-rich, and 1000 extreme sources with reliable 8 {mu}m excesses, and about 4500 O-rich, 5300 C-rich, and 960 extreme sources with reliable 24 {mu}m excesses. The excesses are in the range 0.1 mJy to 5 Jy. The 8 and 24 {mu}m excesses for all three types of AGB candidates show a general increasing trend with luminosity. The color temperature of the circumstellar dust derived from the ratio of the 8 and 24 {mu}m excesses decreases with an increase in excess, while the 24 {mu}m optical depth increases with excess. The extreme AGB candidates are the major contributors to the mass loss, and we estimate the total AGB mass loss return to the LMC to be (5.9-13) x 10{sup -3} M {sub sun} yr{sup -1}.

Srinivasan, Sundar [Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218 (United States); Meixner, Margaret; Leitherer, Claus; Vijh, Uma; Gordon, Karl D.; Sewilo, Marta [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Volk, Kevin [Gemini Observatory, 670 North A'ohoku Place, Hilo, HI 96720 (United States); Blum, Robert D.; Harris, Jason [National Optical Astronomy Observatory, P.O. Box 26732, Tucson, AZ 85726-6732 (United States); Babler, Brian L.; Bracker, Steve; Meade, Marilyn [Department of Astronomy, University of Wisconsin, 475 North Charter Street, Madison, WI 53706 (United States); Block, Miwa; Engelbracht, Charles W.; For, Bi-Qing; Misselt, Karl A. [Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States); Cohen, Martin [Radio Astronomy Laboratory, 601 Campbell Hall, University of California, Berkeley, CA 94720 (United States); Hora, Joseph L. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Indebetouw, Remy [Astronomy Department, University of Virginia, P.O. Box 3818, Charlottesville, VA 22903-0818 (United States); Markwick-Kemper, Francisca [Jodrell Bank Centre of Astrophysics, School of Physics and Astronomy, University of Manchester, Manchester M13 9PL (United Kingdom)], E-mail: sundar@pha.jhu.edu (and others)

2009-06-15T23:59:59.000Z

119

Light emission from InGaAs:Bi/GaAs quantum wells at 1.3 {mu}m  

Science Conference Proceedings (OSTI)

Highly strained InGaAs:Bi quantum wells (QWs) were grown on (001)-oriented GaAs substrates by molecular beam epitaxy (MBE). Photoluminescence (PL) reveals strong improvements in the optical properties evidenced by 10 times enhancement in PL intensity and extended emission wavelength up to 1.29 {mu}m when Bi is introduced to InGaAs/GaAs QWs. The improved optical quality results from the Bi surfactant effect as well as the Bi incorporation. Post growth thermal annealing shows that Bi atoms in InGaAs/GaAs QWs do not show good thermal stability at 650 Degree-Sign C and tend to diffuse out of the QWs resulting in large wavelength blue-shifts.

Ye Hong; Song Yuxin; Wang Shumin [Department of Microtechnology and Nanoscience, Chalmers University of Technology, Gothenburg SE-41296 (Sweden); Gu Yi [Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050 (China)

2012-12-15T23:59:59.000Z

120

Transformation-optics generalization of tunnelling effects in bi-layers made of paired epsilon-negative/mu-negative media  

E-Print Network (OSTI)

Transformation-media designed by standard transformation-optics (TO) approaches, based on real-valued coordinate-mapping, cannot exhibit single-negative (SNG) character unless such character is already possessed by the domain that is being transformed. In this paper, we show that SNG transformation media can be obtained by transforming a domain featuring double positive (or double-negative) character, via complex analytic continuation of the coordinate transformation rules. Moreover, we apply this concept to the TO-based interpretation of phenomena analogous to the tunnelling effects observable in bilayers made of complementary epsilon-negative (ENG) and mu-negative (MNG) media, and explore their possible TO-inspired extensions and generalizations.

Castaldi, Giuseppe; Galdi, Vincenzo; Alu', Andrea; Engheta, Nader

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "mu mol mol-1" 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

Radiation effects in 1. 06-. mu. m InGaAs LED's and Si photodiodes  

SciTech Connect

Because of the low-intrinsic and radiation-induced attenuation losses in glass fibers in the wavelength range 1.0--1.3 ..mu..m, emitters and detectors operating in this range are of practical importance for radiation-environment applications. We have studied the effects of both ..gamma.. and neutron irradiation on the properties of InGaAs LED's emitting at 1.06 ..mu..m and Si photodiode detectors optimized for this wavelength. While the preirradiation light output of the InGaAs LED's is low relative to many GaAs LED's, the InGaAs devices exhibit less sensitivity to radiation than the most radiation-hardened GaAs LED's. No significant neutron-induced light-output degradation is observed below 1 x 10/sup 13/ n/cm/sup 2/, while 2 x 10/sup 7/ Co-60 rads are required before any ..gamma..-induced degradation is observed. In addition, a significant portion of the ..gamma..-induced light-output degradation can be recovered by applying forward-bias currents of the order of 50 mA in magnitude. Although ..gamma.. irradiation up to 2 x 10/sup 8/ rads has essentially no effect on the photodiodes, neutron fluences above 2 x 10/sup 14/ n/cm/sup 2/ cause a reduction in responsivity. Analysis of the neutron-induced increases in the photodiode leakage current with the guard ring attached reveals a lifetime-damage constant product of 4 x 10/sup -12/ cm/sup 2//n. Laboratory isolators made up of these emitters and detectors have typical preirradiation current-transfer ratios of 5 x 10/sup -4/ which decrease by a factor of 10 after an irradiation of 1.5 x 10/sup 14/ n/cm/sup 2/.

Barnes, C.E.

1979-08-01T23:59:59.000Z

122

Study of the interactions of molten sodium nitrate-potassium nitrate 50 mol % mixture with water vapor and carbon dioxide in air. Final report, June 2, 1980-June 30, 1981  

DOE Green Energy (OSTI)

The interactions of aerial components such as water, carbon dioxide, and oxygen with the binary 50 mol % mixture of sodium nitrate and potassium nitrate have been studied in the temperature range 300 to 600/sup 0/C using electrochemical methods. In addition, the behavior of nitrite ions in this melt was investigated electrochemically. By judicious choice of techniques, in situ electroanalysis was possible and the necessary relevant data to accomplish this is presented, as well as insight into the corresponding electrochemical mechanisms associated with the electroactive species. The influence of each atmospheric component was examined separately. At temperatures above 300/sup 0/C, nitrite ions are found to accumulate due to thermal decomposition of the nitrate. Water is highly soluble in the salt mixture, but no hydrolytic reactions were observed. Two methods of in situ analysis for water are described. Pure carbon dioxide is found to attack the melt at all temperatures above 250/sup 0/C producing carbonate. (LEW)

White, S.H.; Twardoch, U.M.

1981-09-01T23:59:59.000Z

123

Measurement of the semileptonic charge asymmetry using $B_s^0 \\to D_s \\mu X$ decays  

Science Conference Proceedings (OSTI)

We present a measurement of the time-integrated flavor-specific semileptonic charge asymmetry in the decays of B{sub s}{sup 0} mesons that have undergone flavor mixing, a{sub sl}{sup s}, using B{sub s}{sup 0} ({bar B}{sub s}{sup 0}) {yields} D{sub s}{sup {-+}} {mu}{sup {+-}} X decays, with D{sub s}{sup {-+}} {yields} {phi}{pi}{sup {-+}} and {phi} {yields} K{sup +}K{sup -}, using 10.4 fb{sup -1} of proton-antiproton collisions collected by the D0 detector during Run II at the Fermilab Tevatron Collider. A fit to the difference between the time-integrated D{sub s}{sup -} and D{sub s}{sup +} mass distributions of the B{sub s}{sup 0} and {bar B}{sub s}{sup 0} candidates yields the flavor-specific asymmetry a{sub sl}{sup s} = [-1.08 {+-} 0.72(stat) {+-} 0.17(syst)]% which is the most precise measurement and in agreement with the standard model prediction.

Abazov, V.M.

2012-07-05T23:59:59.000Z

124

Regenerative amplification of femtosecond pulses: Design and construction of a sub-100fs, {mu}J laser system  

Science Conference Proceedings (OSTI)

Femtosecond lasers are a powerful tool for a wealth of applications in physics, chemistry and biology. In most cases, however, their use is fundamentally restricted to a rather narrow spectral range. This thesis deals with the construction and characterization of a femtosecond light source for spectroscopic applications which overcomes that restriction. It is demonstrated how the output of a continuously pumped Ti:sapphire femtosecond oscillator is amplified to the {mu}J level, while the pulse duration remains below 100fs. A combination of continuous pumping, acousto-optic switching and Ti:Al{sub 2}O{sub 3} as a gain medium allows amplification at high repetition rates. By focusing the high energy pulses into a sapphire crystal, a broad-band continuum can be generated, extended in wavelengths over several hundred nanometers. To accomplish amplification of three orders of magnitude while maintaining the pulse length, a regenerative multipass amplifier system was built. The thesis describes theoretical design, realization and characterization of the system. Theoretical calculations and preliminary measurements were carried out and allow a critical evaluation of the final performance.

Schumacher, A.B. [Universitaet Karlsruhe (Germany). Institut fuer Angewandte Physik]|[Lawrence Berkeley National Lab., CA (United States)

1996-10-01T23:59:59.000Z

125

First Search for the Standard Model Higgs Boson Using the Semileptonic Decay Channel: H --> WW --> mu bar nu jj  

SciTech Connect

This dissertation presents the first search for the standard model Higgs boson (H) in decay topologies containing a muon, an imbalance in transverse momentum (E{sub T}) and jets, using p{bar p} collisions at {radical}s = 1.96 TeV with an integrated luminosity of 4.3 fb{sup -1} recorded with the D0 detector at the Fermilab Tevatron Collider. This analysis is sensitive primary to contributions from Higgs bosons produced through gluon fusion, with subsequent decay H {yields} WW {yields} {mu}{nu}jj where W represents a real or virtual W boson. In the absence of signal, limits are set at 95% confidence on the production and decay of the standard model Higgs boson for M{sub H} in the range of 115-200 GeV. For M{sub H} = 165 GeV, the observed and expected limits are factors of 11.2 larger than the standard model value. Combining this channel with e{nu}jj final states and including earlier data to increase the integrated luminosity to 5.4 fb{sup -1} produces observed(expected) limits of 5.5(3.8) times the standard model value.

Zelitch, Shannon Maura; /Virginia U.

2010-09-01T23:59:59.000Z

126

Electron and Hydrogen-Atom Self-Exchange Reactions of Iron and Cobalt Coordination Complexes  

E-Print Network (OSTI)

are faster at lower temperatures, showing small negative enthalpies of activation: Hq(e-) ) -2.1 ( 0.5 kcal mol-1 (288- 320 K) and Hq (H· ) ) -1.5 ( 0.5 kcal mol-1 (260-300 K). This behavior is concluded for a range of hydrogen-atom transfer reactions (eq 2) follow the cross relation.8 Organic hydrogen

Roth, Justine P.

127

(L{sub e}-L{sub {mu}-}L{sub {tau}}) discrete symmetry for heavy right-handed neutrinos and degenerate leptogenesis  

Science Conference Proceedings (OSTI)

The degenerate leptogenesis is studied when the degeneracy in two of the heavy right-handed neutrinos [the third one is irrelevant if {mu}-{tau} symmetry is assumed] is due to L{identical_to}(L{sub e}-L{sub {mu}-}L{sub {tau}}) discrete symmetry. It is shown that a sizable leptogenesis asymmetry ({epsilon}{>=}10{sup -6}) is possible. The level of degeneracy required also predicts the Majorana phase needed for the asymmetry and this prediction is testable since it is the same phase, which appears in the double {beta} decay. Implications of nonzero reactor angle {theta}{sub 13} are discussed. It is shown that the contribution from sin{sup 2{theta}}{sub 13} to the leptogenesis asymmetry parameter may even dominate. An accurate measurement of sin{sup 2{theta}}{sub 13} would have important implications for the mass degeneracy of heavy right-handed neutrinos.

Riazuddin [Centre for Advanced Mathematics and Physics, National University of Sciences and Technology, Rawalpindi (Pakistan) and National Centre for Physics, Quaid-i-Azam University, Islamabad (Pakistan)

2010-05-01T23:59:59.000Z

128

SEARCH FOR HIGH-MASS RESONANCES DECAYING TO e-mu IN ppbar COLLISIONS AT s**(1/2) = 1.96 TeV  

SciTech Connect

We describe a general search for resonances decaying to a neutral e{mu} final state in p{bar p} collisions at a center-of-mass energy of 1.96 TeV. Using a data sample representing 344 pb{sup -1} of integrated luminosity recorded by the CDF II experiment, we compare Standard Model predictions with the number of observed events for invariant masses between 50 and 800 GeV/c{sup 2}. Finding no significant excess (5 events observed vs. 7.7 {+-} 0.8 expected for M{sub e{mu}} > 100 GeV/c{sup 2}), we set limits on sneutrino and Z' masses as functions of lepton family number violating couplings.

Hahn, Kristian Allan; /Pennsylvania U.

2006-08-01T23:59:59.000Z

129

New experimental limits on K sub L sup 0 r arrow. mu. e and K sub L sup 0 r arrow ee branching ratios  

Science Conference Proceedings (OSTI)

A search for the decays {ital K}{sub {ital L}}{sup 0}{r arrow}{mu}e and {ital K}{sub {ital L}}{sup 0}{r arrow}ee has produced no examples of either process. When normalized to the decay {ital K}{sub {ital L}}{sup 0}{r arrow}{pi}{sup +}{pi}{sup {minus}}, the 90%-C.L. upper limits on the branching ratios are {ital B}({ital K}{sub {ital L}}{sup 0}{r arrow}{mu}e){lt}2.2{times}10{sup {minus}10} and {ital B}({ital K}{sub {ital L}}{sup 0}{r arrow}ee){lt}3.2{times}10{sup {minus}10}.

Mathiazhagan, C.; Molzon, W.R. (University of California, Irvine, California 92717 (US)); Cousins, R.D.; Konigsberg, J.; Kubic, J.; Melese, P.; Rubin, P.; Slater, W.E.; Wagner, D. (University of California, Los Angeles, California 90024); Hart, G.W.; Kinnison, W.W.; Lee, D.M.; McKee, R.J.; Milner, E.C.; Sanders, G.H.; Ziock, H.J. (Los Alamos National Laboratory, Los Alamos, New Mexico 87545); Arisaka, K.; Knibbe, P.; Urheim, J. (University of Pennsylvania, Philadelphia, Pennsylvania 19104); Axelrod, S.

1989-11-13T23:59:59.000Z

130

Space charge effect of the high intensity proton beam during the resonance extraction for the Mu2e experiment at Fermilab  

SciTech Connect

The proposed Mu2e experiment to search for direct {mu} {yields} e conversion at Fermilab plans slow, resonant extraction of a beam with 3 x 10{sup 12} protons from the Debuncher ring. Space charge of this high intensity beam is a critical factor, since it induces significant betatron tune spread and consequently affects resonance extraction processes, such as spill uniformity and beam losses. This study shows the multi-particle simulation results in the early stages of resonance extraction and spill uniformity in the presence of 2D and 3D space charge effects. We have presented the results of the third-integer resonance extraction in early stage for the Mu2e experiment in the presence of space charge effects. In order to track particles and to calculate self-consistent space charge effects, Synergia2 was used, which is capable of parallel computing. The space charge tune shift was computed and was reasonable value compared with the analytical calculation. Locations of the septum and Lambertson were chosen so that particles are kicked and extracted efficiently. The spill rates for with and without space charge effects were uniform, but should be improved for the early stage after the sextupole field ramping.

Park, Chong Shik; Amundson, James; Johnstone, John; Michelotti, Leo; Nagaslaev, Vladimir; Werkema, Steve; /Fermilab

2011-03-01T23:59:59.000Z

131

2 {mu}m laterally coupled distributed-feedback GaSb-based metamorphic laser grown on a GaAs substrate  

SciTech Connect

We report a type-I GaSb-based laterally coupled distributed-feedback (DFB) laser grown on a GaAs substrate operating continuous wave at room temperature. The laser structure was designed to operate near a wavelength of 2 {mu}m and was grown metamorphically with solid-source molecular beam epitaxy. The device was fabricated using a 6th-order deep etch grating structure as part of the sidewalls of the narrow ridge waveguide. The DFB laser emits total output power of up to 40 mW in a single longitudinal mode operation at a heat-sink temperature of 20 Degree-Sign C.

Apiratikul, P.; He, L.; Richardson, C. J. K. [Laboratory for Physical Sciences, 8050 Greenmead Drive, College Park, Maryland 20740 (United States)] [Laboratory for Physical Sciences, 8050 Greenmead Drive, College Park, Maryland 20740 (United States)

2013-06-10T23:59:59.000Z

132

Design and Implementation a 8 bits Pipeline Analog to Digital Converter in the Technology 0.6 \\mu m CMOS Process  

E-Print Network (OSTI)

This paper describes a 8 bits, 20 Msamples/s pipeline analog-to-digital converter implemented in 0.6 \\mu m CMOS technology with a total power dissipation of 75.47 mW. Circuit techniques used include a precise comparator, operational amplifier and clock management. A switched capacitor is used to sample and multiplying at each stage. Simulation a worst case DNL and INL of 0.75 LSB. The design operate at 5 V dc. The ADC achieves a SNDR of 44.86 dB. keywords : pipeline, switched capacitor, clock management

Prasetyo, Eri; Paindavoine, Michel

2008-01-01T23:59:59.000Z

133

Above room-temperature operation of InAs/AlGaSb superlattice quantum cascade lasers emitting at 12 {mu}m  

SciTech Connect

The authors report on above-room-temperature operation of InAs/AlGaSb quantum cascade lasers emitting at 12 {mu}m. The laser structures are grown on a n-InAs (100) substrate using solid-source molecular beam epitaxy. An InAs/AlGaSb superlattice is used as an active part and an InAs double plasmon waveguide is used for optical confinement. Results show that increased doping concentration in the injection part of the active region expands the current operation range of the devices, allowing laser operation at and above room temperature. The observed threshold current density is 4.0 kA/cm{sup 2} at 300 K; the maximum operation temperature is 340 K.

Ohtani, K.; Moriyasu, Y.; Ohnishi, H.; Ohno, H. [Laboratory for Nanoelectronics and Semiconductor Spintronics, Research Institute of Electrical Communication, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577 (Japan)

2007-06-25T23:59:59.000Z

134

Background Study on nu_e Appearance from a nu_mu Beam in Very Long Baseline Neutrino Oscillation Experiments with a Large Water Cherenkov Detector  

E-Print Network (OSTI)

There is a growing interest in very long baseline neutrino oscillation experimentation using accelerator produced neutrino beam as a machinery to probe the last three unmeasured neutrino oscillation parameters: the mixing angle theta_13, the possible CP violating phase delta_CP and the mass hierarchy, namely, the sign of delta-m^2_32. Water Cherenkov detectors such as IMB, Kamiokande and Super-Kamiokande have shown to be very successful at detecting neutrino interactions. Scaling up this technology may continue to provide the required performance for the next generation of experiments. This report presents the latest effort to demonstrate that a next generation (> 100 kton) water Cherenkov detector can be used effectively for the rather difficult task of detecting nu_e events from the neutrino oscillation nu_mu -> nu_e despite the large expected potential background resulting from pi^0 events produced via neutral current interactions.

Chiaki Yanagisawa; Chang Kee Jung; Trung Le; Brett Viren

2010-08-05T23:59:59.000Z

135

Background Study on nu_e Appearance from a nu_mu Beam in Very Long Baseline Neutrino Oscillation Experiments with a Large Water Cherenkov Detector  

E-Print Network (OSTI)

There is a growing interest in very long baseline neutrino oscillation experimentation using accelerator produced neutrino beam as a machinery to probe the last three unmeasured neutrino oscillation parameters: the mixing angle theta_13, the possible CP violating phase delta_CP and the mass hierarchy, namely, the sign of delta-m^2_32. Water Cherenkov detectors such as IMB, Kamiokande and Super-Kamiokande have shown to be very successful at detecting neutrino interactions. Scaling up this technology may continue to provide the required performance for the next generation of experiments. This report presents the latest effort to demonstrate that a next generation (> 100 kton) water Cherenkov detector can be used effectively for the rather difficult task of detecting nu_e events from the neutrino oscillation nu_mu -> nu_e despite the large expected potential background resulting from pi^0 events produced via neutral current interactions.

Yanagisawa, Chiaki; Le, Trung; Viren, Brett

2010-01-01T23:59:59.000Z

136

Broadening and shifting of the methanol 119 {mu}m gain line of linear and circular polarization by collision with chiral molecules  

Science Conference Proceedings (OSTI)

Evidence of circular dichroism has been observed in the spectral properties of a gas of left-right symmetric molecules. This dichroism comes about as the result of collisions of the symmetric molecules with left-right asymmetric molecules introduced as a buffer gas. In this sense, the dichroism can be said to have been transferred from the chiral buffer molecules to the symmetric, non-chiral molecules of the background vapor. This transferred dichroism appears as broadening in the gain line of the symmetric molecule which is asymmetric with respect to the right or left handedness of a circularly polarized probe. The broadening of the 119 {mu}m line of the methanol molecule was observed using infrared-far infrared double resonance spectroscopy.

J.S. Bakos; G. Djotyan; Zsuzsa Soerlei; J. Szigeti; D. K. Mansfield; J. Sarkozi

2000-06-21T23:59:59.000Z

137

Regenerative amplification of picosecond 10-{mu}m pulses in a high-pressure optically pumped CO{sub 2} laser  

Science Conference Proceedings (OSTI)

A model is developed and numerical calculations are performed for the regenerative amplification of seed picosecond 10-{mu}m radiation pulses in a high-pressure optically pumped CO{sub 2} laser. It is established that by varying the cavity parameters, the conditions of efficient regenerative amplification may be optimised for the case of a relatively short-duration (50 ns) solid-state Cr:Er:YSGG laser and 'long-duration' (250 ns) electrodischarge chemical HF laser. It is shown that the schemes of a CO{sub 2} amplifier with optical pumping presented allow obtaining the pulses with the duration of 3ps, output energy of 1-5 mJ, and peak power of {approx}1 GW at the pump energy of 150-200 mJ. (lasers and amplifiers)

Gordienko, Vyacheslav M; Platonenko, Viktor T [Lomonosov Moscow State University, Faculty of Physics, Moscow (Russian Federation)

2011-01-24T23:59:59.000Z

138

Leading order hadronic contributions to a{sub {mu}} and {alpha}{sub QED} from N{sub f} = 2 + 1 + 1 twisted mass fermions  

Science Conference Proceedings (OSTI)

We present the first four-flavour lattice calculation of the leading-order hadronic vacuum polarisation contribution to the anomalous magnetic moment of the muon, a{sub {mu}}{sup hvp}, and the hadronic running of the QED coupling constant, {Delta}{alpha}{sup hvp}{sub QED}(Q{sup 2}). In the heavy sector a mixed-action setup is employed. The bare quark masses are determined from matching the K- and D-meson masses to their physical values. Several light quark masses are used in order to yield a controlled extrapolation to the physical pion mass by utilising a recently proposed improved method. We demonstrate that this method also works in the four-flavour case.

Xu Feng, Grit Hotzel, Karl Jansen, Marcus Petschlies, Dru B. Renner

2012-12-01T23:59:59.000Z

139

Compositional dependence of the 1.8 {mu}m emission properties of Tm{sup 3+} ions in silicate glass  

Science Conference Proceedings (OSTI)

The compositional dependence of the 1.8 {mu}m emission properties of Tm{sup 3+} ion-doped lead silicate glasses is investigated. Judd-Ofelt parameters are calculated and their variation with different glass modifier ions is obtained. The Judd-Ofelt parameters increase with decreased modifier ionic radius. A large spontaneous emission probability and a large emission cross-section are found to be related with the strength of the modifier ion. Fluorescence spectra are analyzed using rate equations and compared with recorded data. The results are very close, indicating the reliability of this method. Non-radiative probability is deduced by fitting the fluorescence decay curve; it becomes smaller with increased ionic field strength. Energy transfer processes are studied using the extended overlap integral method.

Wang Xin; Fan Sijun; Li Kefeng; Zhang Lei; Wang Shikai; Hu Lili [Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Jia Ding, Shanghai 201800 (China)

2012-11-15T23:59:59.000Z

140

Empirical Investigation on the Impact of Hydrogen Collisions for the Formation of CI 1.07 mu~m Lines Based on the Solar Center-to-Limb Variation  

E-Print Network (OSTI)

With an aim of examining the validity of non-LTE line-formation calculations for the strong C I lines of multiplet 1 at 1.068-1.069 mu~m, especially in terms of the treatment of collisions with neutral hydrogen (H I) atoms, we computed theoretical equivalent widths (W_lambda) of these lines corresponding to specific intensities of different angles (mu = cos(theta)) on the solar disk under various conditions, which were then compared with the empirical W_lambda vs. mu relations obtained from our spectroscopic observations using the Domeless Solar Telescope at Hida Observatory. It turned out that our observational data are almost consistent with the theoretical simulations done with the H I collision rates computed with the classical formula, which suggests that the necessity of its significant revision (e.g., considerable reduction) is unlikely.

Takeda, Yoichi

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "mu mol mol-1" 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

Silica-polystyrene nanocomposite particles synthesized by nitroxide-mediated polymerization and their encapsulation through miniemulsion polymerization  

Science Conference Proceedings (OSTI)

Polystyrene (PS) chains with molecular weights comprised between 8000 and 64000 g?mol-1and narrow polydispersities were grown from the surface of silica nanoparticles (Aerosil A200 fumed silica and Stber silica, resp.) through nitroxide-mediated ...

Brangre Bailly; Anne-Carole Donnenwirth; Christle Bartholome; Emmanuel Beyou; Elodie Bourgeat-Lami

2006-01-01T23:59:59.000Z

142

ADAPTIVE OPTICS OBSERVATIONS OF 3 {mu}m WATER ICE IN SILHOUETTE DISKS IN THE ORION NEBULA CLUSTER AND M43  

Science Conference Proceedings (OSTI)

We present the near-infrared images and spectra of four silhouette disks in the Orion Nebula Cluster (M42) and M43 using the Subaru Adaptive Optics system. While d053-717 and d141-1952 show no water ice feature at 3.1 {mu}m, a moderately deep ({tau}{sub ice} {approx} 0.7) water ice absorption is detected toward d132-1832 and d216-0939. Taking into account the water ice so far detected in the silhouette disks, the critical inclination angle to produce a water ice absorption feature is confirmed to be 65 Degree-Sign -75 Degree-Sign . As for d216-0939, the crystallized water ice profile is exactly the same as in the previous observations taken 3.63 years ago. If the water ice material is located at 30 AU, then the observations suggest it is uniform at a scale of about 3.5 AU.

Terada, Hiroshi; Pyo, Tae-Soo; Minowa, Yosuke; Hayano, Yutaka; Oya, Shin; Hattori, Masayuki; Takami, Hideki [Subaru Telescope, National Astronomical Observatory of Japan, 650 North A'ohoku Place, Hilo, HI 96720 (United States); Tokunaga, Alan T. [Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822 (United States); Watanabe, Makoto [Department of Cosmosciences, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810 (Japan); Saito, Yoshihiko [Department of Physics, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152-8551 (Japan); Ito, Meguru [Department of Mechanical Engineering, University of Victoria, 3800 Finnerty Road, Victoria, BC, V8P 5C2 (Canada); Iye, Masanori, E-mail: terada@subaru.naoj.org [National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan)

2012-12-01T23:59:59.000Z

143

Selection Tests of MnZn and NiZn Ferrites for Mu2e 300 kHz and 5.1 MHz AC Dipoles  

SciTech Connect

Mu2e, a charged lepton flavor violation (CLFV) experiment is planned to start at Fermilab late in this decade. The proposed experiment will search for neutrinoless muon to electron conversions with unprecedented sensitivity, better than 6 x 10{sup -17 }at 90% CL. To achieve this sensitivity the incoming proton beam must be highly suppressed during the window for detecting the muon decays. The current proposal for beam extinction is based on a collimator design with two dipoles running at {approx}300 kHz and 5.1 MHz and synchronized to the proton bunch spacing. The appropriate choice of ferrite material for the magnet yoke is a critical step in the overall design of the dipoles and their reliable operation at such high frequencies over the life of the experiment. This choice, based on a series of the thermal and magnetic measurements of the ferrite samples, is discussed in the paper. Additionally, the first results from the testing at 300 kHz of a prototype AC dipole are presented.

Bourkland, K.; Elementi, L.; Feher, S.; Harding, D.J.; Kashikhin, V.S.; Makarov, A.; Pfeffer, H.; Velev, G.V.; /Fermilab; Mulushev, E.; /Institute of Automatics and Electrometry; Iedmeska, I.; /Moscow, MIPT; Venturini, M.; /Pisa U.

2011-09-09T23:59:59.000Z

144

doi:10.1006/jcht.2002.0977 Available online at http://www.idealibrary.com on  

E-Print Network (OSTI)

Thermodynamics, Graduate School of Science, Osaka University, Osaka, Japan Pei-Chao Cheng, and Lawrence Scott.4 ± 2.2) kJ · mol-1, and coronene (307.5 ± 9.8) kJ · mol-1. c 2002 Elsevier Science Ltd. All rights, corannulene, a bowl-shaped C20H10 hydrocarbon, and of coronene, a planar aTo whom correspondence should

Chickos, James S.

145

Proton form factor ratio, {mu}{sub p}G{sub E}{sup P}/G{sub M}{sup P} from double spin asymmetry  

Science Conference Proceedings (OSTI)

The form factors are fundamental properties of the nucleon representing the effect of its structure on its response to electromagnetic probes such as electrons. They are functions of the four-momentum transfer squared Q{sup 2} between the electron and the proton. This thesis reports the results of a new measurement of the ratio of the electric and magnetic form factors of the proton up to Q{sup 2} = 5.66 (GeV/c){sup 2} using the double spin asymmetry with a polarized beam and target. Experiment E07-003 (SANE, Spin Asymmetries of the Nucleon Experiment) was carried out in Hall C at Jefferson Lab in 2009 to study the proton spin structure functions with a dynamically polarized ammonia target and longitudinally polarized electron beam. By detecting elastically scattered protons in the High-Momentum Spectrometer (HMS) in coincidence with the electrons in the Big Electron Telescope Array (BETA), elastic measurements were carried out in parallel. The elastic double spin asymmetry allows one to extract the proton electric to magnetic form factor ratio G{sup p}{sub E}/G{sup p}{sub M} at high-momentum transfer, Q{sup 2} = 5.66 (GeV/c){sup 2}. In addition to the coincidence data, inclusively scattered electrons from the polarized ammonia target were detected by HMS, which allows to measure the beam-target asymmetry in the elastic region with the target spin nearly perpendicular to the momentum transfer, and to extract G{sup p}{sub E}/G{sup p}{sub M} at low Q{sup 2} = 2.06 (GeV/c){sup 2}. This alternative measurement of G{sup p}{sub E}/G{sup p}{sub M} has verified and confirmed the dramatic discrepancy at high Q{sup 2} between the Rosenbluth and the recoil-polarization-transfer iv method with a different measurement technique and systematic uncertainties uncorrelated to those of the recoil-polarization measurements. The measurement of the form factor ratio at Q{sup 2} = 2.06 (GeV/c){sup 2} has been determined as {mu}{sub p}G{sup p}{sub E}/G{sup p}{sub M} = 0.605{+-}0.178{sub stat}{+-}0.033{sub sys} which is in agreement with an earlier measurement with the polarized target technique at similar kinematics. The measurement of the form factor ratio at Q{sup 2} = 5.66 (GeV/c){sup 2} has been determined as {mu}{sub p}G{sup p}{sub E}/G{sup p}{sub M} = 0.672 {+-} 0.362{sub stat} which represents the highest Q{sup 2} reach with the double spin asymmetry to date.

Habarakada Liyanage, Anusha Pushpakumari [Hampton U., JLAB] [Hampton U., JLAB

2013-08-01T23:59:59.000Z

146

Measurement of transmission efficiency for 400 MeV proton beam through collimator at Fermilab MuCool Test Area using Chromox-6 scintillation screen  

SciTech Connect

The MuCool Test Area (MTA) at Fermilab is a facility to develop the technology required for ionization cooling for a future Muon Collider and/or Neutrino Factory. As part of this research program, feasibility studies of various types of RF cavities in a high magnetic field environment are in progress. As a unique approach, we have tested a RF cavity filled with a high pressure hydrogen gas with a 400 MeV proton beam in an external magnetic field (B = 3 T). Quantitative information about the number of protons passing through this cavity is an essential requirement of the beam test. The MTA is a flammable gas (hydrogen) hazard zone. Due to safety reasons, no active (energized) beam diagnostic instrument can be used. Moreover, when the magnetic field is on, current transformers (toroids) used for beam intensity measurements do not work due to the saturation of the ferrite material of the transformer. Based on these requirements, we have developed a passive beam diagnostic instrumentation using a combination of a Chromox-6 scintillation screen and CCD camera. This paper describes details of the beam profile and position obtained from the CCD image with B = 0 T and B = 3 T, and for high and low intensity proton beams. A comparison is made with beam size obtained from multi-wires detector. Beam transmission efficiency through a collimator with a 4 mm diameter hole is measured by the toroids and CCD image of the scintillation screen. Results show that the transmission efficiency estimated from the CCD image is consistent with the toroid measurement, which enables us to monitor the beam transmission efficiency even in a high magnetic field environment.

Jana, M. R.; Chung, M.; Leonova, M.; Moretti, A.; Palmer, M.; Schwarz, T.; Tollestrup, A.; Yonehara, K. [Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States); Freemire, B.; Hanlet, P.; Torun, Y. [Illinois Institute of Technology, Chicago, Illinois 60616 (United States)

2013-06-15T23:59:59.000Z

147

BioCARS_J_Mol_Bio_327_1093.qxd  

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

using the BioCARS sector 14 beamline at the APS have determined how changes in a pair of proteins lead to the family of neurological disorders that includes Tay-Sachs dis- ease....

148

2.8 {mu}m emission from type-I quantum wells grown on InAs{sub x}P{sub 1-x}/InP metamorphic graded buffers  

Science Conference Proceedings (OSTI)

We report 2.8 {mu}m emission from compressively strained type-I quantum wells (QWs) grown on InP-based metamorphic InAs{sub x}P{sub 1-x} step-graded buffers. High quality metamorphic graded buffers showed smooth surface morphology and low threading dislocation densities of approximately 2.5 Multiplication-Sign 10{sup 6} cm{sup -2}. High-resolution x-ray diffraction scans showed strong satellites from multiple quantum wells grown on metamorphic buffers, and cross-sectional transmission electron microscopy revealed smooth and coherent quantum well interfaces. Room-temperature photoluminescence emission at 2.8 {mu}m with a narrow linewidth ({approx}50 meV) shows the promise of metamorphic growth for mid-infrared laser diodes on InP.

Jung, Daehwan; Song, Yuncheng; Larry Lee, Minjoo [Department of Electrical Engineering, Yale University, New Haven, Connecticut 06520 (United States); Yu Lan; Wasserman, Daniel [Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (United States)

2012-12-17T23:59:59.000Z

149

Measurement of {nu}{sub {mu}-}induced charged-current neutral pion production cross sections on mineral oil at E{sub {nu}} is an element of 0.5-2.0 GeV  

SciTech Connect

Using a custom 3-Cerenkov ring fitter, we report cross sections for {nu}{sub {mu}-}induced charged-current single {pi}{sup 0} production on mineral oil (CH{sub 2}) from a sample of 5810 candidate events with 57% signal purity over an energy range of 0.5-2.0 GeV. This includes measurements of the absolute total cross section as a function of neutrino energy, and flux-averaged differential cross sections measured in terms of Q{sup 2}, {mu}{sup -} kinematics, and {pi}{sup 0} kinematics. The sample yields a flux-averaged total cross section of (9.2{+-}0.3{sub stat}{+-}1.5{sub syst})x10{sup -39} cm{sup 2}/CH{sub 2} at mean neutrino energy of 0.965 GeV.

Aguilar-Arevalo, A. A. [Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, D.F. 04510 (Mexico); Anderson, C. E.; Curioni, A.; Fleming, B. T.; Linden, S. K.; Soderberg, M.; Spitz, J. [Yale University, New Haven, Connecticut 06520 (United States); Bazarko, A. O.; Laird, E. M.; Meyers, P. D.; Patterson, R. B.; Shoemaker, F. C.; Tanaka, H. A. [Princeton University, Princeton, New Jersey 08544 (United States); Brice, S. J.; Brown, B. C.; Finley, D. A.; Ford, R.; Garcia, F. G.; Kasper, P.; Kobilarcik, T. [Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)

2011-03-01T23:59:59.000Z

150

Two-dimensional [sup 1]H-NMR EXSY study of the fluxional behavior of the novel carbenium ion complex [FvMo[sub 2](CO)[sub 4]([mu],[eta][sup 2],[eta][sup 3]-MeC[equivalent to]CCH[sub 2])][BF[sub 4  

SciTech Connect

The title compound [FuMo[sub 2](CO)[sub 4]([mu],[eta][sup 2],[eta][sup 3]-MeC[equivalent to]CCH[sub 2])][BF[sub 4

Amouri, H.E.; Besace, Y.; Vollhardt, K.P.C.; Ball, G.E. (Univ. of California, Berkeley (United States) Lawrence Berkeley Lab., CA (United States)); Vaissermann, J. (Universite Pierre et Marie Curie, Paris (France))

1993-03-01T23:59:59.000Z

151

Study of B_s Mixing at the D-Zero Detector at Fermilab Using the Semi-leptonic Decay B_s -> D_s mu nu X  

SciTech Connect

B{sub s}{sup 0} mixing studies provide a precision test of Charge-Parity violation in the Standard Model. A measurement of {Delta}m{sub s} constrains elements of the CKM quark rotation matrix [1], providing a probe of Standard Model Charge-Parity violation. This thesis describes a study of B{sub s}{sup 0} mixing in the semileptonic decay B{sub s}{sup 0} {yields} D{sub s}{sup -} {mu}{sup +}{nu}X, where D{sub s}{sup -} {yields} {phi}{pi}{sup -}, using data collected at the D-Zero detector at Fermi National Accelerator in Batavia, Illinois. Approximately 2.8 fb{sup -1} of data collected between April 2002 and August 2007 was used, covering the entirety of the Tevatron's RunIIa (April 2002 to March 2006) and part of RunIIb (March 2006-August 2007). Taggers using both opposite-side and same-side information were used to obtain the flavor information of the B{sub s}{sup 0} meson at production. The charge of the muon in the decay B{sub s}{sup 0} {yields} D{sub s}{sup -}{mu}{sup +}{nu}X was used to determine the flavor of the B{sub s}{sup 0} at decay. The B{sub d}{sup 0} mixing frequency, {Delta}m{sub d}, was measured to verify the analysis procedure. A log-likelihood calculation was performed, and a measurement of {Delta}m{sub s} was obtained. The final result was {Delta}m{sub s} = 18.86 {+-} 0.80(stat.) {+-} 0.37(sys.) with a significance of 2.6{sigma}.

Anzelc, Meghan; /Northwestern U.

2008-06-01T23:59:59.000Z

152

Enthalpies of Reaction of Pentaammineruthenium(II) Complexes  

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

Enthalpies of Reaction of Pentaammineruthenium(II) Complexes Enthalpies of Reaction of Pentaammineruthenium(II) Complexes James F. Wishart, Henry Taube, Kenneth J. Breslauer and Stephan S. Isied Inorg. Chem. 23, 2997-3001 (1984) Abstract: Enthalpies have been obtained for substitution in aquopentaammineruthenium(II) by acetonitrile, imidazole, pyridine, thiodiethanol, pentaammine(pyrazine)ruthenium(II) ion, isonicotinamide, pyrazine, N-methylpyrazinium ion, dimethyl sulfoxide, and carbon monoxide, by using a batch microcalorimeter. The values are -9.2, -9.3, -12.7, -13.7, -13.8, -15.3, -16.8, -18.0, -19.2, and -38.3 kcal mol-1, respectively. Enthalpies were also obtained for the protonation of pentaammine(pyrazine)ruthenium(II) ion (-4.9 kcal mol-1) and for the comproportionation of [((NH3)5Ru)2pyr]5+ (-3.9 kcal mol-1). The enthalpies

153

THE SOLAR NEIGHBORHOOD. XXVII. DISCOVERY OF NEW PROPER MOTION STARS WITH {mu} {>=} 0.''18 yr{sup -1} IN THE SOUTHERN SKY WITH 16.5 < R{sub 59F} {<=} 18.0  

SciTech Connect

Here we present 1584 new southern proper motion systems with {mu} {>=} 0.''18 yr{sup -1} and 16.5 > R{sub 59F} {>=} 18.0. This search complements the six previous SuperCOSMOS-RECONS (SCR) proper motion searches of the southern sky for stars within the same proper motion range, but with R{sub 59F} {<=} 16.5. As in previous papers, we present distance estimates for these systems and find that three systems are estimated to be within 25 pc, including one, SCR 1546-5534, possibly within the RECONS 10 pc horizon at 6.7 pc, making it the second nearest discovery of the searches. We find 97 white dwarf candidates with distance estimates between 10 and 120 pc, as well as 557 cool subdwarf candidates. The subdwarfs found in this paper make up nearly half of the subdwarf systems reported from our SCR searches and are significantly redder than those discovered thus far. The SCR searches have now found 155 red dwarfs estimated to be within 25 pc, including 10 within 10 pc. In addition, 143 white dwarf candidates and 1155 cool subdwarf candidates have been discovered. The 1584 systems reported here augment the sample of 4724 systems previously discovered in our SCR searches and imply that additional systems fainter than R{sub 59F} = 18.0 are yet to be discovered.

Boyd, Mark R.; Henry, Todd J.; Jao, Wei-Chun [Georgia State University Department of Physics and Astronomy, Atlanta, GA 30302-4106 (United States); Subasavage, John P. [Cerro Tololo Inter-American Observatory, La Serena (Chile); Hambly, Nigel C., E-mail: boyd@chara.gsu.edu, E-mail: thenry@chara.gsu.edu, E-mail: jao@chara.gsu.edu, E-mail: jsubasavage@ctio.noao.edu, E-mail: nch@roe.ac.uk [Scottish Universities Physics Alliance, Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, Scotland (United Kingdom)

2011-09-15T23:59:59.000Z

154

RESEARCH PAPER Florin Iancu Norbert Mu ller  

E-Print Network (OSTI)

level. Then it can be assumed that the compression is more efficient if no moving parts are involved. Microfabricated turbomachinery like turbines, compressors, pumps, but also electric generators, heat exchangers of the compression can be calculated. The model assumes constant friction along the walls and no heat exchange

Müller, Norbert

155

muMAG session report, Anaheim  

Science Conference Proceedings (OSTI)

MAG Evening Session. 9th Joint MMM/Intermag Conference January 7, 2004 Anaheim, CA Bob McMichael, Session Chair Agenda: ...

2004-01-22T23:59:59.000Z

156

Mu B-Driven Electroweak Symmetry Breaking  

E-Print Network (OSTI)

1988). [20] Y . Nomura, D . Poland and B . Tweedie, arXiv:Nomura, D a v i d Poland, and Brock Tweedie Department of

Nomura, Yasunori; Poland, David; Tweedie, Brock

2005-01-01T23:59:59.000Z

157

Nanoindentation Under Dynamic Conditions  

E-Print Network (OSTI)

of H2 atmosphere P mN Load Q kJ mol-1 Activation energy R J mol-1 K-1 Molar gas constant - 8.31451 7.0e-05 S mN nm-1 Stiffness dp/dh at peak load and depth T C Temperature Tc C Critical temperature above which hydrogen has no miscibility... to the plasticity index H/Er. Finally, the issue of local and average strain rate is addressed. 2.3.1 Indenter Geometry There are several different indenter geometries in common usage. Some of these, such as the Brinell sphere, Rockwell conospheroids, and Vickers...

Wheeler, Jeffrey M

2009-05-22T23:59:59.000Z

158

UCAC3 PROPER MOTION SURVEY. I. DISCOVERY OF NEW PROPER MOTION STARS IN UCAC3 WITH 0.''40 yr{sup -1} > {mu} {>=} 0.''18 yr{sup -1} BETWEEN DECLINATIONS -90{sup 0} AND -47{sup 0}  

Science Conference Proceedings (OSTI)

This paper presents 442 new proper motion stellar systems in the southern sky between declinations -90{sup 0} and -47{sup 0} with 0.''40 yr{sup -1} > {mu} {>=} 0.''18 yr{sup -1}. These systems constitute a 25.3% increase in new systems for the same region of the sky covered by previous SuperCOSMOS RECONS (SCR) searches that used Schmidt plates as the primary source of discovery. Among the new systems are 25 multiples, plus an additional 7 new common proper motion (CPM) companions to previously known primaries. All stars have been discovered using the third U.S. Naval Observatory (USNO) CCD Astrograph Catalog (UCAC3). A comparison of the UCAC3 proper motions to those from the Hipparcos, Tycho-2, Southern Proper Motion (SPM4), and SuperCOSMOS efforts is presented and shows that UCAC3 provides similar values and precision to the first three surveys. The comparison between UCAC3 and SuperCOSMOS indicates that proper motions in R.A. are systematically shifted in the SuperCOSMOS data but are consistent in decl. data, while overall showing a significantly higher scatter. Distance estimates are derived for stars having SuperCOSMOS Sky Survey B{sub J} , R{sub 59F}, and I{sub IVN} plate magnitudes and Two-Micron All Sky Survey infrared photometry. We find 15 systems estimated to be within 25 pc, including UPM 1710-5300 our closest new discovery estimated at 13.5 pc. Such new discoveries suggest that more nearby stars are yet to be found in these slower proper motion regimes, indicating that more work is needed to develop a complete map of the solar neighborhood.

Finch, Charlie T.; Zacharias, Norbert [U.S. Naval Observatory, Washington, DC 20392-5420 (United States); Henry, Todd J., E-mail: finch@usno.navy.mi [Department of Physics and Astronomy, Georgia State University, Atlanta, GA 30302-4106 (United States)

2010-09-15T23:59:59.000Z

159

Metal Interactions at the Biochar-Water Interface: Energetics and Structure-Sorption Relationships Elucidated by Flow Adsorption Microcalorimetry  

Science Conference Proceedings (OSTI)

Interest in biochars and their role in the biogeochemical cycling of metals have increased in recent years. However, a systematic understanding of the mechanisms involved in biochar-metal interactions and conditions under which a given mechanism is predominant is still needed. We used flow adsorption micro-calorimetry to study structure-sorption relationships between twelve plant-derived biochars and two metals of different ionization potential (Ip). Biochar structure influenced the amount of K+ (Ip = 419 kJ mol-1) or Cd(II) (Ip = 868 kJ mol-17 ) sorption but had no effect on the mechanism of sorption. Irrespective of the biochar, K+ sorption was exothermic, surface-controlled and occurred via an ion-exchange mechanism on negatively- charged sites with molar heats of adsorption (_Hads) of -4 kJ mol-1 on wood versus -8 kJ mol-1 on grass biochars. In contrast, Cd(II) sorption was endothermic and favored surface complexation on uncharged biochar surfaces with _Hads of around +17 kJ mol-1. Cadmium sorption transitioned from surface- to diffusion-controlled on biochars formed at ? 350 oC and _Hads for Cd(II) sorption was the same on grass and wood biochars. We concluded that, in general, metals with lower Ip favor electrostatic interactions with biochars, while metals of higher Ip favor more covalent-like interactions.

Harvey, Omar R.; Herbert, Bruce; Rhue, Roy D.; Kuo, Li-Jung

2011-06-01T23:59:59.000Z

160

Experiments with energetic {mu}d and {mu}t emitted from solid hydrogen  

DOE Green Energy (OSTI)

A set of experiments is reviewed which makes use of the emission of muonic deuterium from the surface of a layer of solid hydrogen. The behavior of muons in a solid target system has been studied via detection of muon decay electrons, muonic x-rays, and fusion products (neutrons and charged particles). The emission of muonic deuterium is understood to result from the Ramsauer-Townsend scattering minimum. The energy distribution of the emitted atoms ranges from tenths of eV to about 10eV, and can be controlled to some extent. A proposal is described to use muonic tritium emission to measure the energy dependence of muonic molecular formation.

Marshall, G.M.; Beveridge, J.L. [TRIUMF, Vancouver, BC (Canada); Bailey, J.M. [Liverpool Univ. (United Kingdom); Beer, G.A.; Knowles, P.E.; Mason, G.R.; Olin, A. [Victoria Univ., BC (Canada); Brewer, J.H.; Forster, B.M. [British Columbia Univ., Vancouver, BC (Canada); Huber, T.M.; Pippitt, B. [Gustavus Adolphus Coll., St. Peter, MN (United States); Jacot-Guillarmod, R.; Schellenberg, L. [Fribourg Univ. (Switzerland). Inst. de Physique; Kammel, P.; Zmeskal, J. [Oesterreichische Akademie der Wissenschaften, Vienna (Austria). Inst. fuer Mittelenergiephysik; Kunselman, A.R. [Wyoming Univ., Laramie, WY (United States); Martoff, C.J. [Temple Univ., Philadelphia, PA (United States); Petitjean, C. [Paul Scherrer Inst. (PSI), Villigen (Switzerland)

1992-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "mu mol mol-1" from the National Library of EnergyBeta (NLEBeta).
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161

Experiments with energetic [mu]d and [mu]t emitted from solid hydrogen  

DOE Green Energy (OSTI)

A set of experiments is reviewed which makes use of the emission of muonic deuterium from the surface of a layer of solid hydrogen. The behavior of muons in a solid target system has been studied via detection of muon decay electrons, muonic x-rays, and fusion products (neutrons and charged particles). The emission of muonic deuterium is understood to result from the Ramsauer-Townsend scattering minimum. The energy distribution of the emitted atoms ranges from tenths of eV to about 10eV, and can be controlled to some extent. A proposal is described to use muonic tritium emission to measure the energy dependence of muonic molecular formation.

Marshall, G.M.; Beveridge, J.L. (TRIUMF, Vancouver, BC (Canada)); Bailey, J.M. (Liverpool Univ. (United Kingdom)); Beer, G.A.; Knowles, P.E.; Mason, G.R.; Olin, A. (Victoria Univ., BC (Canada)); Brewer, J.H.; Forster, B.M. (British Columbia Univ., Vancouver, BC (Canada)); Huber, T.M.; Pippitt, B. (Gustavus Adolphus Coll., St. Peter, MN (United States)); Jacot-Guillarmod, R.; Schellenberg, L. (Fribourg U

1992-01-01T23:59:59.000Z

162

The nature of marbled Terra Sigillata slips: a combined mu XRF and mu XRD investigation  

E-Print Network (OSTI)

Berkeley, CA 94720, USA e SSRL, SLAC, University Stanford,who is operating ALS and SSRL under Contracts No. DE- AC02-Radiation Lightsource -SSRL (Stanford, USA). This line is a

Leon, Yoanna

2009-01-01T23:59:59.000Z

163

The influence of subglacial hydrology on the flow of West Antarctic ice streams  

E-Print Network (OSTI)

pressure in a conduit (Pa) Q Activation energy for creep ( J mol?1) q? Darcy water flux (m s?1) qa Water flux in the till, to/from above (m s?1) qb Water flux in the till, to/from below (m s?1) Qc Volumetric water flux in a conduit (m3 s?1) qc Water flux...

Baker, Narelle Paula Marie

2012-04-10T23:59:59.000Z

164

Main Title 32pt  

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

Tf 2 Zn(EA) 4 101 8.9 Tf 3 Fe(dEA) 6 207 13.1 Tf 2 Zn(EA) 6 341 14.6 E a of aqueous (and molten) metal salt 3-5 kcal mol -1 conductivity is low: suggests significant ion pairing...

165

BASIC GEOPHYSICAL FLUID Lecture 1: Introduction -  

E-Print Network (OSTI)

conservation, equations of state. · Rotating frame of reference, Centrifugal and Coriolis forces. · Local a perfect gas: pV = RT for 1 mole where R = molar gas const = 8.3 J mol-1 K-1. If M = mass of 1 mole, = M/

Read, Peter L.

166

J. Mol. Biol. (1990) 216, 239-241 Characterization and Preliminary Crystallographic Studies on  

E-Print Network (OSTI)

liquefying temperature (about a 100 K), and transferred at that temperature to the X-ray rotation camera. Throughout the entire period of data collection the crystals were surrounded by a stream of nitrogen gas

Yonath, Ada E.

167

J. Mol. Biol. (1983) 171, 95-100 LETTERS TO THE EDITOR  

E-Print Network (OSTI)

good candidates for such sites were noticed during initial inspection of the electron density map and processed as described by Winkler et al. (1979). Only relatively sparse data sets were collected: about 30, post-refinement calculations (Winkler et al., 1979) were successful even with Gd3+ and silicotungstate

Kirchhausen, Tomas

168

Performance of MolRec at TREC 2011 Overview and Analysis ...  

Science Conference Proceedings (OSTI)

... Solid triangle and bold line detection: Given our cleaned skeleton paths, we identify and orient solid triangles, and simultaneously detect bold lines ...

2012-02-03T23:59:59.000Z

169

,J. Mol. Riol. (1983) 163. 1-26 Post-transcriptional Processing of Simian Virus 40  

E-Print Network (OSTI)

) : thr I !$S tra.nsc.rifd is ohstwwf f>>.t tw hwkgt~~~tit~. Thesr data are consistrnt with pubfishcci

Wickens, Marv

170

J. Mol. Model. 1999, 5, 252 262 Springer-Verlag 1999FULL PAPER  

E-Print Network (OSTI)

Tang Institute of Physical Chemistry, Peking University, Beijing 100871, P.R.China. Tel: +86. In 1909, Paul Ehrlich demonstrated that drugs often induce physiological effects by binding to the highly

Luhua, Lai

171

J. Mol. Biol. (1969) 46, 269-279 Refinement of Protein Conformations using a Macromolecular  

E-Print Network (OSTI)

'i-PLA-TRY-ILE-ALA-GLY4CIS-ALA-LEU CLY VAL LEU THR CIS LYS ASP GLU HIS TYR AL1 TRI ml NCAO X(C(C)C)AO NC(CC(C)C)AO NC(AOC

Levitt, Michael

172

B49: Typical Microstructures of Flash-Sintered 8 Mol % YSZ  

Science Conference Proceedings (OSTI)

A16: Analysis of Surface Physic-Chemical Properties of Titanium Heat Treated A17: Morphology Variations of GaN Nanowires and Devices ... A21: Synthesis and Characterization of ?-Tricalcium Phosphate / Glutamic acid ... B13: Ionic Conductivity of Doped Ceria Thin Films Using Different Electrode Configurations.

173

May 13, 1998 Gas Frac. Mol.Wt. Density Speci c Ht. Boil. Pt.  

E-Print Network (OSTI)

Argon 30 39.95 1.784 0.125 Butane 8 58.12 2.6 0.389 -0.5 HFC-134a 62 102.0 4.5 0.20 -26.3 Table 1-pressure for every 1 m height. Gas is non- ammable. Butane and HFC-134a must be heated during winter 1 #12;RPC drop across one layer less than 5 mmH2O at 10 cc=min ow rate. 2 #12;(Outside) Ar Butane Scale Thermal

Llope, William J.

174

J. Mol. Biol. (1996) 259, 819827 Selection of Chymotrypsin Inhibitors from a  

E-Print Network (OSTI)

were heated to 57.5°C for 10 min in a PTC200 thermocycler (MJ Re- search), rapidly cooled to 4°C and conformational studies of [Orn-10, Nle-13]-S-peptide. J Am Chem Soc 91:492­496. Ruettinger RT, Wen LP, Fulco AJ

Leatherbarrow, Robin J.

175

Procyon: 18-MJ, 2-{mu}s pulsed power system  

SciTech Connect

The Procyon high explosive pulsed power (HEPP) system was designed to drive plasma z-pinch experiments that produce Megajoule soft x-ray pulses when the plasma stagnates on axis. In the proceedings of the Ninth IEEE Pulsed Power Conference, we published results from system development tests. At this time, we have fielded seven tests in which the focus was on either vacuum switching or load physics. Four of the tests concentrated on the performance of a Plasma Flow Switch (PFS) which employed a 1/r mass distribution in the PFS barrel. Of the four tests, two had dummy loads and one had an implosion load. In addition, one of the tests broke down near the vacuum dielectric interface, and the result demonstrated what Procyon could deliver to an 18 nH load. We will summarize PFS results and the 18 nH test which is pertinent to upcoming solid/liquid liner experiments. On our other three tests, we eliminated the PFS switching and powered the z-pinch directly with the HEPP system. From the best of these direct drive tests we obtained 1.5 MJ of radiation in a 250 ns pulse, our best radiation pulse to date. We will also summarize direct drive test results. More details are given in other papers in this conference for both the PFS and direct drive experiments, and an updated analysis of our opening switch performed is also included. The remainder of this paper describes the parameters and capabilities of our system, and we will use the data from several experiments to provide more precise information than previously available.

Goforth, J.H.; Anderson, B.G.; Anderson, W.E. [and others

1995-08-01T23:59:59.000Z

176

An Induction Linac Approach to Phase Rotation of a Muon Bunch in the Production Region of a mu+ - mu- Collider  

E-Print Network (OSTI)

geometry and voltage waveshape requirements. We now turn tocell and voltage insulation requirements. An induction cellgap region. The requirements of voltage insulation and

Turner, W.C.

2011-01-01T23:59:59.000Z

177

A 350 mu W CMOS MSK Transmitter and 400 mu W OOK Super-Regenerative Receiver for Medical Implant Communications  

E-Print Network (OSTI)

Recent advances in the medical field are spurring the need for ultra-low power transceivers for wireless communication with medical implants. To deal with the growing demand for medical telemetry, the FCC commissioned the ...

Dawson, Joel L.

178

Trilepton events and B(s) ---> mu+ mu-: No lose for mSUGRA at the Tevatron?  

E-Print Network (OSTI)

transverse energy, 6ET , which is calculated in PGS using the calorimeter cells, is corrected to include any muons. The transverse energy ET = E sin ?, where E is the energy of a particle. 3. A cut on the ratio of the electromagnetic, Eem, to hadronic energy... the fact that off-shell, slepton mediated decays of the gauginos destructively interfere with the gauge boson mediated decays. Since the decay Bs ? +? cannot be seen for such small values of tan ? the null area has to be covered by other Tevatron...

Dedes, A; Dreiner, Herbert K; Nierste, U; Richardson, P

179

An Induction Linac Approach to Phase Rotation of a Muon Bunch in the Production Region of a mu+ - mu- Collider  

E-Print Network (OSTI)

0.71 MV/m etc .. The integrated volt-seconds/m for the three5 are .055, .122 and . 134 volt-seconds/m at z = O. 0.2 andcell axial length. (2) the volt-seconds of the magnetic core

Turner, W.C.

2011-01-01T23:59:59.000Z

180

Widmansta?tten Ferrite and Bainite in Ultra High Strength Steels  

E-Print Network (OSTI)

due to transformation, mm Martensite start temperature, in QC Steady state nucleation rate Negligible partitioning local equilibrium Partitioning local equilibrium Volume fraction of ferrite transformed Austenite Isothermal reaustenitisation... temperature in QC Interfacial energy per unit area Temperature at which stress-free austenite and ferrite of the same composition have identical free energies, QC Same as To except taking stored energy 400 J mol-1 of bainite, QC Radius of spherical nucleus...

Ali, Ashraf

1991-05-07T23:59:59.000Z

Note: This page contains sample records for the topic "mu mol mol-1" 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

Gas-Phase Oxidation of Cm+ and Cm2+ -- Thermodynamics of neutral and ionized CmO  

Science Conference Proceedings (OSTI)

Fourier transform ion cyclotron resonance mass spectrometry was employed to study the products and kinetics of gas-phase reactions of Cm+ and Cm2+; parallel studies were carried out with La+/2+, Gd+/2+ and Lu+/2+. Reactions with oxygen-donor molecules provided estimates for the bond dissociation energies, D[M+-O](M = Cm, Gd, Lu). The first ionization energy, IE[CmO], was obtained from the reactivity of CmO+ with dienes, and the second ionization energies, IE[MO+](M = Cm, La, Gd, Lu), from the rates of electron-transfer reactions from neutrals to the MO2+ ions. The following thermodynamic quantities for curium oxide molecules were obtained: IE[CmO]= 6.4+-0.2 eV; IE[CmO+]= 15.8+-0.4 eV; D[Cm-O]= 710+-45 kJ mol-1; D[Cm+-O]= 670+-40 kJ mol-1; and D[Cm2+-O]= 342+-55 kJ mol-1. Estimates for the M2+-O bond energies for M = Cm, La, Gd and Lu are all intermediate between D[N2-O]and D[OC-O]--i.e., 167 kJ mol-1CO2 by N2O. The CmO2+ ion appeared during the reaction of Cm+ with O2 when the intermediate, CmO+, was not collisionally cooled -- although its formation is kinetically and/or thermodynamically unfavorable, CmO2+ is a stable species.

Gibson, John K; Haire, Richard G.; Santos, Marta; Pires de Matos, Antonio; Marcalo, Joaquim

2008-12-08T23:59:59.000Z

182

passage.dvi  

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

Passage Passage of particles through matter 1 1. PASSAGE OF PARTICLES THROUGH MATTER Revised January 2012 by H. Bichsel (University of Washington), D.E. Groom (LBNL), and S.R. Klein (LBNL). 1.1. Notation Table 1.1: Summary of variables used in this section. The kinematic variables β and γ have their usual meanings. Symbol Definition Units or Value α Fine structure constant 1/137.035 999 11(46) (e 2 /4πǫ 0 c) M Incident particle mass MeV/c 2 E Incident part. energy γM c 2 MeV T Kinetic energy MeV m e c 2 Electron mass × c 2 0.510 998 918(44) MeV r e Classical electron radius 2.817 940 325(28) fm e 2 /4πǫ 0 m e c 2 N A Avogadro's number 6.022 1415(10) × 10 23 mol -1 ze Charge of incident particle Z Atomic number of absorber A Atomic mass of absorber g mol -1 K/A 4πN A r 2 e m e c 2 /A 0.307 075 MeV g -1 cm 2 for A = 1 g mol -1 I Mean excitation energy eV (Nota bene! ) δ(βγ) Density effect correction to ionization energy

183

Passage  

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

Passage Passage of particles through matter 1 27. PASSAGE OF PARTICLES THROUGH MATTER Revised April 2006 by H. Bichsel (University of Washington), D.E. Groom (LBNL), and S.R. Klein (LBNL). 27.1. Notation Table 27.1: Summary of variables used in this section. The kinematic variables β and γ have their usual meanings. Symbol Definition Units or Value α Fine structure constant 1/137.035 999 11(46) (e 2 /4π 0 c) M Incident particle mass MeV/c 2 E Incident particle energy γM c 2 MeV T Kinetic energy MeV m e c 2 Electron mass × c 2 0.510 998 918(44) MeV r e Classical electron radius 2.817 940 325(28) fm e 2 /4π 0 m e c 2 N A Avogadro's number 6.022 1415(10) × 10 23 mol -1 ze Charge of incident particle Z Atomic number of absorber A Atomic mass of absorber g mol -1 K/A 4πN A r 2 e m e c 2 /A 0.307 075 MeV g -1 cm 2 for A = 1 g mol -1 I Mean excitation energy eV (Nota bene! ) δ(βγ) Density effect correction to ionization

184

First calorimetric determination of heat of extraction of 248Cm in a bi-phasic system  

SciTech Connect

This report presents a summary of the work performed to meet FCR&D level 2 milestone M21SW050201, 'Complete the first calorimetric determination of heat of extraction of 248Cm in a bi-phasic system'. This work was carried out under the auspices of the Thermodynamics and Kinetics FCR&D work package. To complement previous work undertaken under this work package we have extended out heat of extraction studies by di-2-ethyl-hexyl-phosphoric acid to curium. This report also details the heat of extraction of samarium in the same system. This work was performed to not only test the methodology but also to check for consistency with the heats of extraction obtained with those in the prior literature. The heat of extraction for samarium that was obtained in this study was -9.6 kJ mol-1, which is in reasonable agreement with the previously obtained value of -10.9 kJ mol-1. The curium heat of extraction was performed under two sets of conditions and the obtained heats of extraction were in reasonable agreement with each other at -16.0 {+-} 1.1 and -16.8 {+-} 1.5 kJ mol-1.

Leigh R. Martin; Peter R. Zalupski

2011-06-01T23:59:59.000Z

185

Kinetics of the Thermal Decomposition of Solid PETN  

SciTech Connect

The thermal decomposition of PETN below its melting point has been investigated. Separate monitoring of six product gases allowed individual initial rates of reaction and activation energies to be calculated. The activation energies for the production of both N2O and H2O area between 50 and 56 kcal*mol-1, pointing to a single process operant over the entire temperature range 363 - 408 K. The other four observed products have activation energies that are significantly higher. The activation energies for CO2 and N2 formation are 65-66 kcal*mol-1 while those for the production of CO and [NO+NO2] are 71-75 kcal*mol-1. Whether these values represent two or only one additional mechanism is not clear; however, for the 2s width uncertainty limits overlap. The processes or process involved in the formation of CO2, N2, CO, and [NO + NO2] appear(s) to change at 373K, as a dramatic drop in activation energies is observed at lower temperatures.

Miller, G. D.; Haws, L. D.; Dinegar, R. H.

1982-08-01T23:59:59.000Z

186

Microsoft PowerPoint - MolWireH2-jM_JW_BNLworkshop.ppt [Read-Only]  

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

Fast Pulse Experiments on Fast Pulse Experiments on Molecular Processes in Organic Ions hν phase boundary e - 2-200 nm molecular wire Catalytic nanoparticle Energy Capture and Storage Using Nano Objects 10 8 6 4 2 0 x10 -3 3000nm 2500 2000 1500 1000 500 λ (nm) 0.14 0.12 0.10 0.08 0.06 0.04 0.02 0.00 Absorbance R R R R * n n=20 PolyFluorene 20 anion in THF LEAF (300ns) Na reduction 606 nm 2520 nm 80 60 40 20 0 ε (M -1 cm -1 ) x10 -3 2000 1800 1600 1400 1200 1000 800 600 λ (nm) T3-PPE-T3 and PPE Cations in DCE/Toluene T3PPET3 Cation PPE Cation < 10 ns S R S S R R OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR S R S S R R OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR * The spectrum of the T 3 end-capped polymer is red- shifted relative to that of the parent * The PPE cation radical is trapped by the T 3 end- groups in <10 ns !

187

Int. J. Mol. Sci. 2011, 12, 9440-9462; doi:10.3390/ijms12129440 International Journal of  

E-Print Network (OSTI)

- Zn2+ 3EW8 1.80 M344 D101L Zn2+ 3EWF 2.50 Substrate H143A Zn2+ 3EZP 2.65 M344 D101N Zn2+ 3EZT 2.85 M

Lee, Keun Woo

188

JOl/mol of Food Pmftclian. Vv/. 64. No. J. 200/. P/1ges 401-41)4 Research Note  

E-Print Network (OSTI)

occurring car- cinogens known. and, thus, crop contamination with the toxins poses a serious health hazard of fungal pectinases and other hydro- lases (1-3) in plant cell wall degradation is well established

Cotty, Peter J.

189

Plasma-enhanced and thermal atomic layer deposition of Al{sub 2}O{sub 3} using dimethylaluminum isopropoxide, [Al(CH{sub 3}){sub 2}({mu}-O{sup i}Pr)]{sub 2}, as an alternative aluminum precursor  

Science Conference Proceedings (OSTI)

The authors have been investigating the use of [Al(CH{sub 3}){sub 2}({mu}-O{sup i}Pr)]{sub 2} (DMAI) as an alternative Al precursor to [Al(CH{sub 3}){sub 3}] (TMA) for remote plasma-enhanced and thermal ALD over wide temperature ranges of 25-400 and 100-400 deg. C, respectively. The growth per cycle (GPC) obtained using in situ spectroscopic ellipsometry for plasma-enhanced ALD was 0.7-0.9 A/cycle, generally lower than the >0.9 A/cycle afforded by TMA. In contrast, the thermal process gave a higher GPC than TMA above 250 deg. C, but below this temperature, the GPC decreased rapidly with decreasing temperature. Quadrupole mass spectrometry data confirmed that both CH{sub 4} and HO{sup i}Pr were formed during the DMAI dose for both the plasma-enhanced and thermal processes. CH{sub 4} and HO{sup i}Pr were also formed during the H{sub 2}O dose but combustion-like products (CO{sub 2} and H{sub 2}O) were observed during the O{sub 2} plasma dose. Rutherford backscattering spectrometry showed that, for temperatures >100 deg. C and >200 deg. C for plasma-enhanced and thermal ALD, respectively, films from DMAI had an O/Al ratio of 1.5-1.6, a H content of {approx}5 at. % and mass densities of 2.7-3.0 g cm{sup -3}. The film compositions afforded from DMAI were comparable to those from TMA at deposition temperatures {>=}150 deg. C At lower temperatures, there were differences in O, H, and C incorporation. 30 nm thick Al{sub 2}O{sub 3} films from the plasma-enhanced ALD of DMAI were found to passivate n- and p-type Si floatzone wafers ({approx}3.5 and {approx}2 {Omega} cm, respectively) with effective carrier lifetimes comparable to those obtained using TMA. Surface recombination velocities of < 3 and < 6 cm s{sup -1} were obtained for the n- and p-type Si, respectively. Using these results, the film properties obtained using DMAI and TMA are compared and the mechanisms for the plasma-enhanced and thermal ALD using DMAI are discussed.

Potts, Stephen E.; Dingemans, Gijs; Lachaud, Christophe; Kessels, W. M. M. [Department of Applied Physics, Eindhoven University of Technology, P. O. Box 513, 5600 MB Eindhoven (Netherlands); Air Liquide Research and Development, 1 Chemin de la Porte des Loges, BP 126, 78345 Jouy-en-Josas (France); Department of Applied Physics, Eindhoven University of Technology, P. O. Box 513, 5600 MB Eindhoven (Netherlands)

2012-03-15T23:59:59.000Z

190

Comparison of cracking kinetics for Kern River 650{degrees}F{sup +} residuum and Midway Sunset crude oil  

Science Conference Proceedings (OSTI)

Kern River 650{degrees}F{sup +} residuum and Midway Sunset crude oil were examined by micropyrolysis at several constant-heating rates to determine pyrolysis cracking kinetics. Determined by the discrete distribution method, both feeds exhibited principal activation energies of 50 kcal/mol and frequency factors {approximately} 10{sup 13} sec{sup -1}. Energy distributions were similar ranging from 45 to 57 kcal/mol. Determined by the shift-in-T{sub max} method, E{sub approx}, A{sub approx} for Kern River 650{degrees}F{sup +} and Midway Sunset were 48 kcal/mol, 1.3 X 10{sup 12} sec{sup -1}, and 46 kcal/mol, 4.6 X 10{sup 11} sec{sup -1}, respectively. These results are similar, but not identical to other kinetic parameters for heavy oils from type II source rocks.

Reynolds, J.

1995-05-01T23:59:59.000Z

191

Gas-Phase Oxidation of Cm+ and Cm2+ -- Thermodynamics of neutral and ionized CmO  

SciTech Connect

Fourier transform ion cyclotron resonance mass spectrometry was employed to study the products and kinetics of gas-phase reactions of Cm+ and Cm2+; parallel studies were carried out with La+/2+, Gd+/2+ and Lu+/2+. Reactions with oxygen-donor molecules provided estimates for the bond dissociation energies, D[M+-O](M = Cm, Gd, Lu). The first ionization energy, IE[CmO], was obtained from the reactivity of CmO+ with dienes, and the second ionization energies, IE[MO+](M = Cm, La, Gd, Lu), from the rates of electron-transfer reactions from neutrals to the MO2+ ions. The following thermodynamic quantities for curium oxide molecules were obtained: IE[CmO]= 6.4+-0.2 eV; IE[CmO+]= 15.8+-0.4 eV; D[Cm-O]= 710+-45 kJ mol-1; D[Cm+-O]= 670+-40 kJ mol-1; and D[Cm2+-O]= 342+-55 kJ mol-1. Estimates for the M2+-O bond energies for M = Cm, La, Gd and Lu are all intermediate between D[N2-O]and D[OC-O]--i.e., 167 kJ mol-1< D[M2+-O]< 532 kJ mol-1 -- such that the four MO2+ ions fulfill the thermodynamic requirement for catalytic O-atom transport from N2O to CO. It was demonstrated that the kinetics are also favorable and that the CmO2+, LaO2+, GdO2+ and LuO2+ dipositive ions each catalyze the gas-phase oxidation of CO to CO2 by N2O. The CmO2+ ion appeared during the reaction of Cm+ with O2 when the intermediate, CmO+, was not collisionally cooled -- although its formation is kinetically and/or thermodynamically unfavorable, CmO2+ is a stable species.

Gibson, John K; Haire, Richard G.; Santos, Marta; Pires de Matos, Antonio; Marcalo, Joaquim

2008-12-08T23:59:59.000Z

192

Search for the Standard Model Higgs Boson in p-pbar Interactions with the decay mode H -> W+ W- -> mu+ nu mu- nu at the D0 Experiment.  

E-Print Network (OSTI)

??A search for the standard model Higgs boson in p-pbar collisions resulting in two muons and large missing transverse energy is presented. The analysis uses (more)

Johnston, Dale M

2010-01-01T23:59:59.000Z

193

Mol. Biol. Evol. 18(6):10881102. 2001 2001 by the Society for Molecular Biology and Evolution. ISSN: 0737-4038  

E-Print Network (OSTI)

marine invertebrate taxa, including some well- studied and presumably cosmopolitan species, are actually-richness, overestimation of potential for long-dis- tance dispersal in putatively cosmopolitan species, failure of an ad- vanced conceptual framework of systematics methods, many invertebrates once supposed cosmopolitan

Foltz, David W.

194

Assessment of (mu)grid distributed energy resource potential using DER-CAM and GIS  

E-Print Network (OSTI)

technology i Operating cost per kWh electric produced ($/cost of technology i ($/kWh) Maximum number of hours per

Edwards, Jennifer L.; Marnay, Chris; Bartholomew, Emily; Ouaglal, Boubekeur; Siddiqui, Afzal S.; LaCommare, Kristina S.H.

2002-01-01T23:59:59.000Z

195

GR ADUATE CATALOG TEXAS A&MU N I V E R S I T Y  

E-Print Network (OSTI)

. Ikene, 2000: Positive corona inception in HVDC configurations under vari- able air density and humidity

196

Assessment of (mu)grid distributed energy resource potential using DER-CAM and GIS  

E-Print Network (OSTI)

of Customer Adoption of Distributed Energy Resources. Assessment of Grid Distributed Energy Potential Using DER-Assessment of Grid Distributed Energy Resource Potential

Edwards, Jennifer L.; Marnay, Chris; Bartholomew, Emily; Ouaglal, Boubekeur; Siddiqui, Afzal S.; LaCommare, Kristina S.H.

2002-01-01T23:59:59.000Z

197

MU Radar and Lidar Observations of Clear-Air Turbulence underneath Cirrus  

Science Conference Proceedings (OSTI)

Turbulence generation mechanisms prevalent in the atmosphere are mainly shear instabilities, breaking of internal buoyancy waves, and convective instabilities such as thermal convection due to heating of the ground. In the present work, clear-air ...

Hubert Luce; Takuji Nakamura; Masayuki K. Yamamoto; Mamoru Yamamoto; Shoichiro Fukao

2010-02-01T23:59:59.000Z

198

Assessment of (mu)grid distributed energy resource potential using DER-CAM and GIS  

E-Print Network (OSTI)

6 p ($/kW) Regulated tariff for energy purchases during hourtariff customer charge for gas ($) Distributed Energyenergy- purchase scenarios: the SDG&E time-of-use (TOU) tariff

Edwards, Jennifer L.; Marnay, Chris; Bartholomew, Emily; Ouaglal, Boubekeur; Siddiqui, Afzal S.; LaCommare, Kristina S.H.

2002-01-01T23:59:59.000Z

199

Assessment of (mu)grid distributed energy resource potential using DER-CAM and GIS  

E-Print Network (OSTI)

DER may take the form of microgrids (Grids), where multiplethe development of microgrids (Grids), in which multiple

Edwards, Jennifer L.; Marnay, Chris; Bartholomew, Emily; Ouaglal, Boubekeur; Siddiqui, Afzal S.; LaCommare, Kristina S.H.

2002-01-01T23:59:59.000Z

200

Tau-Mu Flavor Violation and the Scale of New Physics 1  

E-Print Network (OSTI)

Abstract. Motivated by the strong experimental evidence of large ? ??? neutrino oscillations, we study existing constraints for related ? ? flavor violation. Using a general bottom-up approach, we construct dimension-6 effective fermionic operators whose coefficients encode the scale of new physics associated with ?? flavor violation, which is a piece in the puzzle of the origin of neutrino oscillations. We survey existing experimental bounds on this scale, which arise mostly from ? and B decays. In many cases the new physics scale is constrained to be above a few TeV. We also discuss the operators which are either weakly constrained or, at present, subject to no experimental bounds.

Deirdre Black; Tao Han; Hong-jian He; Marc Sher

2003-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "mu mol mol-1" 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

Optimizing microalgal production in raceway systems Rafael Mu~noz-Tamayoa  

E-Print Network (OSTI)

in "Biotechnology Progress 29, 2 (2013) 543--552" DOI : 10.1002/btpr.1699 #12;Due to its biochemical properties have been10 identified as a renewable source for biodiesel production [5, 18]. However, despite these11

202

Erbium-ytterbium-yttrium compounds for light emission at 1.54[mu]m  

E-Print Network (OSTI)

Silicon microphotonics has emerged as the leading technology to overcome the interconnect bottleneck that limits a further increase of computation power following Moore's law. Optical interconnects between different ...

Vanhoutte, Michiel

2013-01-01T23:59:59.000Z

203

Progress on Design and Construction of a MuCool Coupling Solenoid Magnet  

E-Print Network (OSTI)

fixture as well as thermal sink and cooling conduction. Theto be arranged as a thermal siphon cooling system driven by

Wang, L.

2010-01-01T23:59:59.000Z

204

The Univer siTy ClUb of MU A Tradition of Excellence  

E-Print Network (OSTI)

Seasonal Vegetables with Garlic Aioli ... $3.95 per guest Cured Smoked Salmon Display with Garnishes ... $5 lobster broth, garnished with Bay shrimp and a touch of sherry SaladS University Club Salad is included, garnished with asparagus and grilled portobello mushrooms with croutons and your choice of dressing $2

Taylor, Jerry

205

Novel broadband light sources and pulse generation techniques at 1.5 [mu]m  

E-Print Network (OSTI)

A wide diversity of applications, in both fundamental science and practical technology, has come to rely on broadband optical light sources as key enabling tools. In this thesis, we investigate three devices that contribute ...

Shen, Hanfei M, 1979-

2009-01-01T23:59:59.000Z

206

ErAs as a transparent contact at 1.55 mu m  

E-Print Network (OSTI)

have been doped indium oxides. The most intensively studiedto improve the electrical mobility of indium oxide. 35search has modi?ed the indium oxide matrix such as adding

Hanson, M P; Gossard, A C; Brown, E R

2006-01-01T23:59:59.000Z

207

Studies of. mu. prime s underground with the Soudan 2 Tracker  

Science Conference Proceedings (OSTI)

During the period July 1987 through March 1988, a section of the Soudan 2 active shield known as the Tracker' recorded {approximately}250,000 muon tracks. The detector is located in the Tower-Soudan State Park in Soudan, Minnesota USA at a depth of 2090 meters-water equivalent. We have analysed the data collected and searched for time-dependent astronomical sources. Distributions in azimuthal and zenith angles as well as declination and right ascension are shown. 1 ref., 7 figs., 1 tab.

Kochocki, J.; Benjamin, D.; Ewen, B.; Kafka, T.; Mann, A.; McMaster, L.; Milburn, R.; Napier, A.; Oliver, W.; Saitta, B.; Schneps, J.; Sundaralingam, N. (Tufts Univ., Medford, MA (USA)); Allison, W.W.M.; Barr, G.D.; Brooks, C.B.; Cobb, J.H.; Kirby-Gallagher, L.M.; Giles, R.H.; Perkins, D.H.; Shield, P.D.; Thomson, M.A.; West, N. (Oxford Univ. (UK)); Alner, G.J.; Cockerill, D.J.A.; Edwards, V.W.; Garcia-Garcia, C.; Litchf

1989-08-23T23:59:59.000Z

208

Thermomechanical properties and performance of microfabricated solid oxide fuel cell ([mu]SOFC) structures  

E-Print Network (OSTI)

The mechanical properties of a ceramic electrolyte, sputtered yttria-stabilized zirconia (YSZ), in thin film (SOFCs (SOFCs) ...

Yamamoto, Namiko

2006-01-01T23:59:59.000Z

209

Assessment of (mu)grid distributed energy resource potential using DER-CAM and GIS  

E-Print Network (OSTI)

is the total annual electricity bill divided by the totalis the total annual electricity bill divided by total annualelectricity use where the electricity bill is a function of

Edwards, Jennifer L.; Marnay, Chris; Bartholomew, Emily; Ouaglal, Boubekeur; Siddiqui, Afzal S.; LaCommare, Kristina S.H.

2002-01-01T23:59:59.000Z

210

GRADUATE CATALOG TEXAS A&MU N I V E R S I T Y  

E-Print Network (OSTI)

Gas Enhanced Recovery (waterflood) Gas Storage and Observation Gas plus Gas Storage Oil plus Enhanced

Behmer, Spencer T.

211

Progress on Design and Construction of a MuCool Coupling Solenoid Magnet  

E-Print Network (OSTI)

281 than 4.8 K by heat conduction during normal operation asmeet the demands on heat conduction, electrical conduction

Wang, L.

2010-01-01T23:59:59.000Z

212

Exam 1, Chemistry 210, Dr. Rainer Glaser, W97, MU --1 --Chemistry 210Chemistry 210  

E-Print Network (OSTI)

,4-dimethyl-octane (4 points) 7-tert.-butyl-4-iso.-propyl-3,5-decadiene (3 pts) H O butanal (3 pts) O ethylmethylketone Condensed structural formula of n-butane. (2 pts) H3C-CH2-CH2-CH3 Bond line structure of butane. (2 pts) Newman projection of gauche butane along the central C2-C3 bond. (4 pts) H H Me Me H H

Glaser, Rainer

213

Exam 1, Chemistry 210, Dr. Rainer Glaser, W97, MU --1 --Chemistry 210Chemistry 210  

E-Print Network (OSTI)

) (3 points) (4 points) (3 pts) H O (3 pts) O Condensed structural formula of n-butane. (2 pts) Bond line structure of butane. (2 pts) Newman projection of gauche butane along the central C2-C3 bond. (4

Glaser, Rainer

214

Noise and zero point drift in 1.7 mu m cutoff detectors for SNAP  

E-Print Network (OSTI)

Acceleration Probe. Effects of Fowler sampling depth andapply to the case where Fowler sampling is performed for 15dark > 1*mean f ow le r fowler Figure 1: Comparison of

2006-01-01T23:59:59.000Z

215

Validation of Winds Measured by MU Radar with GPS Radiosondes during the MUTSI Campaign  

Science Conference Proceedings (OSTI)

For many years, mesospherestratospheretroposphere (MST) radar techniques have been used for studying the structure and dynamics of the lower and middle atmosphere. In particular, these instruments are unique tools for continuously monitoring ...

H. Luce; S. Fukao; M. Yamamoto; C. Sidi; F. Dalaudier

2001-06-01T23:59:59.000Z

216

IMAGE: Rainer Glaser, professor of chemistry in the MU College of Arts  

E-Print Network (OSTI)

area is limited. Some pesticides have one REI, such as 12 hours, for all crops and uses. Other products have different REIs depending on the crop or method of application. When two (or more) pesticides 30 days, a pesticide has been applied or a restricted-entry interval has been in effect. 1

Glaser, Rainer

217

Integrated high-repetition-rate femtosecond lasers at 1.55 [mu]m  

E-Print Network (OSTI)

Performance of state-of-the-art, electronic analog-to-digital converters is currently limited by the 100-fs aperture jitter. However, optical sampling can overcome the jitter limit by using femtosecond lasers that have ...

Byun, Hyunil

2010-01-01T23:59:59.000Z

218

Use of Proton-Transfer-Reaction Mass Spectrometry to Characterize Volatile Organic Compound Sources at the La Porte Super Site During the Texas Air Quality Study 2000  

SciTech Connect

Proton-transfer-reaction mass spectrometry (PTR-MS) was deployed for continuous real-time monitoring of volatile organic compounds (VOCs) at a site near the Houston Ship Channel during the Texas Air Quality Study 2000. Overall, 28 ions dominated the PTR-MS mass spectra and were assigned as anthropogenic aromatics (e.g., benzene, toluene, xylenes) and hydrocarbons (propene, isoprene), oxygenated compounds (e.g., formaldehyde, acetaldehyde, acetone, methanol, C7 carbonyls), and three nitrogencontaining compounds (e.g., HCN, acetonitrile and acrylonitrile). Biogenic VOCs were minor components at this site. Propene was the most abundant lightweight hydrocarbon detected by this technique with concentrations up to 100+ nmol mol-1, and was highly correlated with its oxidation products, formaldehyde (up to ~40 nmol mol-1) and acetaldehyde (up to ~80 nmol/mol), with typical ratios close to 1 in propene-dominated plumes. In the case of aromatic species the high time resolution of the obtained data set helped in identifying different anthropogenic sources (e.g., industrial from urban emissions) and testing current emission inventories. A comparison with results from complimentary techniques (gas chromatography, differential optical absorption spectroscopy) was used to assess the selectivity of this on-line technique in a complex urban and industrial VOC matrix and give an interpretation of mass scans obtained by soft chemical ionization using proton-transfer via H3O+. The method was especially valuable in monitoring rapidly changing VOC plumes which passed over the site, and when coupled with meteorological data it was possible to identify likely sources.

Karl, Thomas G.; Jobson, B Tom T.; Kuster, W. C.; Williams, Eric; Stutz, Jochen P.; Shetter, Rick; Hall, Samual R.; Goldan, P. D.; Fehsenfeld, Fred C.; Lindinger, Werner

2003-08-19T23:59:59.000Z

219

Temperature programmed desorption from LiAlO sub 2 treated with H sub 2  

DOE Green Energy (OSTI)

Temperature programmed desorption (TPD) measurements have been made of H{sub 2}O and H{sub 2} desorption from LiAlO{sup 2} treated at 923 K with He-H{sub 2} mixtures containing 990, 495, and 227 vppm H{sub 2}. Desorptions were into sweep gases of pure He and into He-H{sub 2} mixtures. The H{sub 2}O and H{sub 2} desorption peaks were shown to be the sums of first order subpeaks which had reproducible desorption activation energy and pre-exponential terms. For H{sub 2}O desorption, the activation energies were 96, 117, 134 kJ/mol (23, 28, and 32 kcal/mol). (Earlier work had identified an additional peak with an activation energy of 75 kJ/mol (18 kcal/mol).) Enhancement of desorption of H{sub 2}O by H{sub 2} in the sweep gas was confirmed. The enhancement results not from modifying the activation energies and pre-exponential terms for the various sites but from changes in the populations of sites participating in the desorption process so that sites with lower activation energies are increasingly involved. For those runs with He as the sweep gas, desorption of H{sub 2} could be observed. The subpeaks involved had activation energies within approximately 4 kJ/mol (1 kcal/mol) higher than the analogous peaks for H{sub 2}O desorption. 2 refs., 4 figs., 3 tabs.

Fischer, A.K.

1991-01-01T23:59:59.000Z

220

The photosynthetic acclimation of Lolium perenne in response to three years growth in a free-air CO{sub 2} enrichment (FACE) system  

DOE Green Energy (OSTI)

Pure stands of Ryegrass were in their third year of growth in the field, exposed to either ambient (355 {mu}mol mol{sup -1}), or elevated (600 {mu}mol mol{sup -1}) atmospheric CO{sub 2} concentration. A Free-Air CO{sub 2} Enrichment (FACE) system was used to maintain the elevated CO{sub 2} concentration whilst limiting experimental constraints on the field conditions. The theoretically predicted increase in the net rates of CO{sub 2} uptake per unit leaf area (A {mu}mol mol{sup -1}) as a consequence, primarily, of the suppression of photorespiration by CO{sub 2} a competitive inhibitor of RubP oxygenation by Rubisco, was observed for the Lolium perenne studied. Also observed was a general decline in leaf evapotranspiration (E) consistent with observations of increased water use efficiency of crops grown in elevated CO{sub 2}. Enhancement of leaf A in the FACE grown L. perenne ranged from 26.5 1 % to 44.95% over the course of a diurnal set of measurements. Whilst reductions in leaf E reached a maximum of 16.61% over the same diurnal course of-measurements. The increase in A was reconciled with an absence of the commonly observed decline in V{sub c}{sub max} as a measure of the maximum in vivo carboxylation capacity of the primary carboxylasing enzyme Rubisco and J{sub max} a measure of the maximum rate of electron transport. The manipulation of the source sink balance of the crop, stage of canopy regrowth or height in the canopy had no effect on the observation of a lack of response. The findings of this study will be interpreted with respect to the long term implications of C{sub 3} crops being able to adapt physiologically to maximize the potential benefits conferred by growth in elevated CO{sub 2}.

Hymus, G.J. [Univ. of Essex (United Kingdom)]|[Univ. of Writtle College (United Kingdom)

1996-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "mu mol mol-1" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Search for the Standard Model Higgs Boson in p anti-p Interactions with the Decay Mode H --> W+W- --> mu+nu mu-anti-nu at the D0 Experiment  

Science Conference Proceedings (OSTI)

A search for the standard model Higgs boson in p{bar p} collisions resulting in two muons and large missing transverse energy is presented. The analysis uses 4.2 fb{sup -1} of integrated luminosity at a center-of-mass energy of {radical}s = 1.96 TeV collected between April 2002 and December 2008 with the D0 detector at the Fermilab Tevatron collider. No significant excess above the background estimation is observed and limits are derived on Higgs boson production.

Johnston, Dale Morgan; /Nebraska U.

2010-04-01T23:59:59.000Z

222

Crystal structure of ({mu}{sub 5}-decahydro-closo-decaborato) ({mu}{sub 2}-O-dimethylformamide)disilver(I) [Ag{sub 2}(B{sub 10}H{sub 10})(DMF)  

SciTech Connect

The compound [Ag{sub 2}(B{sub 10}H{sub 10})(DMF)] is synthesized, and its crystal structure is studied (R = 0.0699 for 2836 observed reflections). The coordination number of each of the four independent Ag atoms is 4 + 2. The nearest environment of the Ag(1) and Ag(4) atoms consists of two O atoms of the DMF molecules and two BH groups, and that of the Ag(2) and Ag(3) atoms consists of four BH groups. All the Ag atoms additionally form weak bonds with two BH groups. The Ag-O and Ag-B bonds lie in the ranges 2.319-2.465(9) and 2.46-2.70(1) A, respectively, and the Ag-B distances are 2.89-3.25(1) A. Due to the binding of each polyhedral anion to five Ag atoms, layers are formed. Bridging DMF molecules link layers into the three-dimensional framework.

Polyakova, I. N., E-mail: polyakova@igic.ras.ru; Malinina, E. A.; Drozdova, V. V.; Kuznetsov, N. T. [Russian Academy of Sciences, Kurnakov Institute of General and Inorganic Chemistry (Russian Federation)

2008-03-15T23:59:59.000Z

223

Crystal structure of ({mu}{sub 5}-decahydro-closo-decaborato) ({mu}{sub 2}-O-dimethylformamide)disilver(I) [Ag{sub 2}(B{sub 10}H{sub 10})(DMF)  

SciTech Connect

The compound [Ag{sub 2}(B{sub 10}H{sub 10})(DMF)] is synthesized, and its crystal structure is studied (R = 0.0699 for 2836 observed reflections). The coordination number of each of the four independent Ag atoms is 4 + 2. The nearest environment of the Ag(1) and Ag(4) atoms consists of two O atoms of the DMF molecules and two BH groups, and that of the Ag(2) and Ag(3) atoms consists of four BH groups. All the Ag atoms additionally form weak bonds with two BH groups. The Ag-O and Ag-B bonds lie in the ranges 2.319-2.465(9) and 2.46-2.70(1) Angstrom-Sign , respectively, and the Ag Midline-Horizontal-Ellipsis B distances are 2.89-3.25(1) Angstrom-Sign . Due to the binding of each polyhedral anion to five Ag atoms, layers are formed. Bridging DMF molecules link layers into the three-dimensional framework.

Polyakova, I. N., E-mail: polyakova@igic.ras.ru; Malinina, E. A.; Drozdova, V. V.; Kuznetsov, N. T. [Russian Academy of Sciences, Kurnakov Institute of General and Inorganic Chemistry (Russian Federation)

2008-03-15T23:59:59.000Z

224

An engineering-economic analysis of combined heat and power technologies in a (mu)grid application  

E-Print Network (OSTI)

technology i Operating cost per kWh electric produced ($/1996). Maintenance costs are typically $0.01-0.015 per kWh

Bailey, Owen; Ouaglal, Boubekeur; Bartholomew, Emily; Marnay, Chris; Bourassa, Norman

2002-01-01T23:59:59.000Z

225

Transcriptional regulation of human mu-opioid receptor gene: functional characterization of activating and inhibitory transcription factors.  

E-Print Network (OSTI)

??The organization of the nervous and immune systems is characterized by obvious differences and striking parallels. Both systems need to relay information across very short (more)

Bedini, Andrea and#60;1979and#62

2008-01-01T23:59:59.000Z

226

An engineering-economic analysis of combined heat and power technologies in a (mu)grid application  

SciTech Connect

This report describes an investigation at Ernesto Orlando Lawrence Berkeley National Laboratory (Berkeley Lab) of the potential for coupling combined heat and power (CHP) with on-site electricity generation to provide power and heating, and cooling services to customers. This research into distributed energy resources (DER) builds on the concept of the microgrid (mGrid), a semiautonomous grouping of power-generating sources that are placed and operated by and for the benefit of its members. For this investigation, a hypothetical small shopping mall (''Microgrid Oaks'') was developed and analyzed for the cost effectiveness of installing CHP to provide the mGrid's energy needs. A mGrid consists of groups of customers pooling energy loads and installing a combination of generation resources that meets the particular mGrid's goals. This study assumes the mGrid is seeking to minimize energy costs. mGrids could operate independently of the macrogrid (the wider power network), but they are usually assumed to be connected, through power electronics, to the macrogrid. The mGrid in this study is assumed to be interconnected to the macrogrid, and can purchase some energy and ancillary services from utility providers.

Bailey, Owen; Ouaglal, Boubekeur; Bartholomew, Emily; Marnay, Chris; Bourassa, Norman

2002-03-01T23:59:59.000Z

227

An engineering-economic analysis of combined heat and power technologies in a (mu)grid application  

E-Print Network (OSTI)

natural gas loads are readily available because due to the historic stability of gas prices there has been no incentive

Bailey, Owen; Ouaglal, Boubekeur; Bartholomew, Emily; Marnay, Chris; Bourassa, Norman

2002-01-01T23:59:59.000Z

228

An engineering-economic analysis of combined heat and power technologies in a (mu)grid application  

E-Print Network (OSTI)

Technologies in a Grid Application heat, usually in thethe Grid. In this Grid the heat loads are not that great,Combined Heat and Power Technologies in a Grid Application

Bailey, Owen; Ouaglal, Boubekeur; Bartholomew, Emily; Marnay, Chris; Bourassa, Norman

2002-01-01T23:59:59.000Z

229

Strong Mixing Events Observed near the Tropopause with the MU Radar and High-Resolution Balloon Techniques  

Science Conference Proceedings (OSTI)

In the present paper, strong isotropic radar echo enhancements are shown that are related to the existence of nearly statically neutralized layers (40120 m thick) observed with high-resolution (10 cm) temperature measurements performed during ...

H. Luce; S. Fukao; F. Dalaudier; M. Crochet

2002-10-01T23:59:59.000Z

230

THE EVOLUTION OF SOLAR FLUX FROM 0.1 nm TO 160 {mu}m: QUANTITATIVE ESTIMATES FOR PLANETARY STUDIES  

Science Conference Proceedings (OSTI)

Understanding changes in the solar flux over geologic time is vital for understanding the evolution of planetary atmospheres because it affects atmospheric escape and chemistry, as well as climate. We describe a numerical parameterization for wavelength-dependent changes to the non-attenuated solar flux appropriate for most times and places in the solar system. We combine data from the Sun and solar analogs to estimate enhanced UV and X-ray fluxes for the young Sun and use standard solar models to estimate changing visible and infrared fluxes. The parameterization, a series of multipliers relative to the modern top of the atmosphere flux at Earth, is valid from 0.1 nm through the infrared, and from 0.6 Gyr through 6.7 Gyr, and is extended from the solar zero-age main sequence to 8.0 Gyr subject to additional uncertainties. The parameterization is applied to a representative modern day flux, providing quantitative estimates of the wavelength dependence of solar flux for paleodates relevant to the evolution of atmospheres in the solar system (or around other G-type stars). We validate the code by Monte Carlo analysis of uncertainties in stellar age and flux, and with comparisons to the solar proxies {kappa}{sup 1} Cet and EK Dra. The model is applied to the computation of photolysis rates on the Archean Earth.

Claire, Mark W. [School of Environmental Sciences, University of East Anglia, Norwich, UK NR4 7TJ (United Kingdom); Sheets, John; Meadows, Victoria S. [Virtual Planetary Laboratory and Department of Astronomy, University of Washington, Box 351580, Seattle, WA 98195 (United States); Cohen, Martin [Radio Astronomy Laboratory, University of California, Berkeley, CA 94720-3411 (United States); Ribas, Ignasi [Institut de Ciencies de l'Espai (CSIC-IEEC), Facultat de Ciencies, Torre C5 parell, 2a pl, Campus UAB, E-08193 Bellaterra (Spain); Catling, David C., E-mail: M.Claire@uea.ac.uk [Virtual Planetary Laboratory and Department of Earth and Space Sciences, University of Washington, Box 351310, Seattle, WA 98195 (United States)

2012-09-20T23:59:59.000Z

231

Measurement of the nu(mu) Charged Current pi+ Production to Quasi-elastic Scattering Cross Section  

SciTech Connect

Using high statistics samples of charged current interactions, MiniBooNE reports a model independent measurement of the single charged pion production to quasi-elastic cross section ratio on mineral oil without corrections for pion re-interactions in the target nucleus [1]. The result is provided as a function of neutrino energy in the range 0.4 GeV < E < 2.4 GeV with 11% precision in the region of highest statistics.

Nowak, Jaroslaw A.; /Louisiana State U.

2009-09-01T23:59:59.000Z

232

A 34 Gb/s distributed 2 : 1 MUX and CMU using 0.18 mu m CMOS  

E-Print Network (OSTI)

The input and output transmission lines are realized usingfrequencies of the transmission lines are suf?ciently high.impedance of the output transmission line is designed to be

Singh, U; Li, L J; Green, Michael M

2006-01-01T23:59:59.000Z

233

High-quality source of fiber-coupled polarization-entangled photons at 1.56 [mu]m  

E-Print Network (OSTI)

This thesis describes the development of a high-quality source of single-mode fibercoupled polarization-entangled photon pairs based on a collinear spontaneous parametric down-conversion process in a bidirectionally pumped ...

Stelmakh, Veronika

2012-01-01T23:59:59.000Z

234

RF optimization and analysis of the 805-MHz cavity for the MuCool program using ACE3P  

SciTech Connect

An 805 MHz pillbox cavity tested at Fermilab's MTA facility showed significant degradation in gradient when operated in a several Tesla solenoidal magnetic field. We have used the advanced ACE3P simulation codes developed at SLAC to study the cavity dark current and multipacting characteristics to gain more insight into the gradient limitations. We also checked whether there is an optimal cavity length that minimizes the dark current impact energy. Finally, we have improved on the cavity design, significantly lowering the fields outside the beam area. These and other results are presented in this paper.

Li Zenghai; Ge Lixin; Adolphsen, Chris; Li Derun; Bowring, Daniel [SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025 (United States); Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720 (United States)

2012-12-21T23:59:59.000Z

235

An engineering-economic analysis of combined heat and power technologies in a (mu)grid application  

E-Print Network (OSTI)

and solid oxide (SOFC) fuel cells. The characteristics ofCarbonate (MCFC) Solid Oxide (SOFC) Stabilized Phosphoricfuel cells (MCFC and SOFC) are capable of producing high-

Bailey, Owen; Ouaglal, Boubekeur; Bartholomew, Emily; Marnay, Chris; Bourassa, Norman

2002-01-01T23:59:59.000Z

236

UNDERGRADUATE CATALOG EDITION 135 TEXAS A&MU N I V E R S I T Y  

E-Print Network (OSTI)

;15 University Core Curriculum Guided by requirements of the Texas Core Curriculum, the University Core

237

UNDERGRADUATE CATALOG EDITION 136 TEXAS A&MU N I V E R S I T Y  

E-Print Network (OSTI)

and rain erosion are greatly reduced because of the grass roots' ability to stabilize the soil. The surface: 13-wave coulters in front of seeder, double disk openers for starter fertilizer, and heavy disk for Plasticulture, Penn State University: http://plasticulture.cas.psu.edu Penn State High Tunnel Production Guide

Behmer, Spencer T.

238

UNDERGRADUATE CATALOG EDITION 136 TEXAS A&MU N I V E R S I T Y  

E-Print Network (OSTI)

the use of cement by replacing more of it with coal fly ash. The process would use what was once a discarded material as a use- ful one that would mitigate stress on the environment. Fly ash is a by production of electricity. When they can sell a by-product like fly ash, then they've won twice." In 2007, 72

239

Standard Model Higgs Boson Discovery Potential in the Decay Channel H - > ZZ(*) - > 4 mu with the CMS Detector.  

E-Print Network (OSTI)

??The Compact Muon Solenoid (CMS) is a general purpose detector at the Large Hadron Collider (LHC) currently under construction at CERN with start-up date in (more)

Drozdetski, Alexei Alexandrovic

2007-01-01T23:59:59.000Z

240

An engineering-economic analysis of combined heat and power technologies in a (mu)grid application  

E-Print Network (OSTI)

the U.S. DOE, and from the Fuel Cell Handbook, 4 th and 5DOE (2000), National Energy Technology Laboratory (NETL), Fuel Cells: Handbook (

Bailey, Owen; Ouaglal, Boubekeur; Bartholomew, Emily; Marnay, Chris; Bourassa, Norman

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "mu mol mol-1" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Poly[bis(N,N-dimethylformamide-[kappa]O)([mu]4-naphthalene-1,5-disulfonato)magnesium(II)  

Science Conference Proceedings (OSTI)

The structure of the title compound, [Mg(C{sub 10}H{sub 6}O{sub 6}S{sub 2})(C{sub 3}H{sub 7}NO){sub 2}]{sub n}, consists of MgO{sub 6} octahedra ({bar 1} symmetry) connected to naphthalene-1,5-disulfonate ligands ({bar 1} symmetry) in the equatoral plane, forming a two-dimensional network propagating parallel to (010). The coordination sphere of the Mg atom is completed by the O atoms of two N,N-dimethylformamide (DMF) molecules in the axial positions. The title compound represents the first time the naphthalene-1,5-disulfonate anion is bound directly to a Mg{sup 2+} atom. Disorder over two positions was found in the DMF molecule in a 0.518 (8):0.482 (8) ratio.

Borkowski, Lauren A.; Banerjee, Debasis; Parise, John B. (SBU)

2011-08-16T23:59:59.000Z

242

High fluence 1.05 {mu}m performance tests using 20 ns shaped pulses on the Beamlet prototype laser  

SciTech Connect

Beamlet is a single beamline, nearly full scale physics prototype of the 192 beam Nd:Glass laser driver of the National Ignition Facility. It is used to demonstrate laser performance of the NIF multipass amplifier architecture. Initial system characterization tests have all been performed at pulse durations less than 10 ns. Pinhole closure and modulation at the end of long pulses are a significant concern for the operation of NIF. We recently demonstrated the generation, amplification and propagation of high energy pulses temporally shaped to mimic 20 ns long ignition pulse shapes at fluence levels exceeding the nominal NIF design requirements for Inertial Confinement Fusion by Indirect Drive. We also demonstrated the effectiveness of a new conical pinhole design used in the transport spatial filter to mitigate plasma closure effects and increase closure time to exceed the duration of the 20 ns long pulse.

Van Wonterghem, B.M.; Murray, J.E.; Burkhart, S.C.; Penko, F.; Henesian, M.A.; Auerbach, J.A.; Wegner, P.J.; Caird, J.A.

1996-12-01T23:59:59.000Z

243

An engineering-economic analysis of combined heat and power technologies in a (mu)grid application  

E-Print Network (OSTI)

generation. Justification for Using GAMS Electricity utility expansion planning and operations simulation has a long history, and

Bailey, Owen; Ouaglal, Boubekeur; Bartholomew, Emily; Marnay, Chris; Bourassa, Norman

2002-01-01T23:59:59.000Z

244

High-frequency CML clock dividers in 0.13-mu m CMOS operating up to 38 GHz  

E-Print Network (OSTI)

of Electrical Engineering and Computer Science, Universityof Electrical Engineering and Com- puter Science, UniversityScience Foundation, and the Award for New Technical Concepts in Electrical

Singh, U; Green, M M

2005-01-01T23:59:59.000Z

245

J. Phys. B: At. Mol. Opt. Phys. 30 (1997) L541L549. Printed in the UK PII: S0953-4075(97)81352-1 LETTER TO THE EDITOR  

E-Print Network (OSTI)

in a particular ground hyperfine substate by optical pumping. They are then deflected by resonant laser radiation the substate populations and the coherences formed between them; that is, both the amplitude and the phase, UK. 0953-4075/97/160541+09$19.50 c 1997 IOP Publishing Ltd L541 #12;L542 Letter to the Editor ground

Summy, Gil

246

Urinary 1-hydroxypyrene concentrations in Chinese coke oven workers relative to job category, respirator usage, and cigarette smoking  

SciTech Connect

1-Hydroxypyrene (1-OHP) is a biomarker of recent exposure to polycyclic aromatic hydrocarbons (PAHs). We investigated whether urinary 1-OHP concentrations in Chinese coke oven workers (COWs) are modulated by job category, respirator usage, and cigarette smoking. The present cross-sectional study measured urinary 1-OHP concentrations in 197 COWs from Coking plant I and 250 COWs from Coking plant II, as well as 220 unexposed referents from Control plant I and 56 referents from Control plant II. Urinary 1-OHP concentrations (geometric mean, {mu}mol/mol creatinine) were 5.18 and 4.21 in workers from Coking plants I and II, respectively. The highest 1-OHP levels in urine were found among topside workers including lidmen, tar chasers, and whistlers. Benchmen had higher 1-OHP levels than other workers at the sideoven. Above 75% of the COWs exceeded the recommended occupational exposure limit of 2.3 {mu}mol/mol creatinine. Respirator usage and increased body mass index (BMI) slightly reduced 1-OHP levels in COWs. Cigarette smoking significantly increased urinary 1-OHP levels in unexposed referents but had no effect in COWs. Chinese COWs, especially topside workers and benchmen, are exposed to high levels of PAHs. Urinary 1-OHP concentrations appear to be modulated by respirator usage and BMI in COWs, as well as by smoking in unexposed referents.

Bo Chen; Yunping Hu; Lixing Zheng; Qiangyi Wang; Yuanfen Zhou; Taiyi Jin [Fudan University, Shanghai (China). School of Public Health

2007-09-15T23:59:59.000Z

247

Measurement of genotoxic air pollutant exposures in street vendors and school children in and near Bangkok  

SciTech Connect

The effects of air pollution on human health are a great concern, particularly in big cities with severe traffic problems such as Bangkok, Thailand. In this study, exposure to genotoxic compounds in ambient air was studied by analysis of particle-associated polycyclic aromatic hydrocarbons (PAHs) and benzene through direct measurement of concentrations in air as well as through the use of different biomarkers of exposure: urinary 1-hydroxypyrene (1-OHP) for PAHs and urinary t,t-muconic acid (t,t-MA) for benzene. The study was conducted in various susceptible groups of the population with different occupations in 5 traffic-congested areas of Bangkok, as well as in primary school children. The level of total PAHs on the main roads at various sites ranged from 7.10 to 83.04 ng/m{sup 3}, while benzene levels ranged from 16.35 to 49.25 ppb. In contrast, ambient levels in nearby temples, the control sites, ranged from 1.67 to 3.04 ng/m{sup 3} total PAHs and 10.16 to 16.25 ppb benzene. Street vendors selling clothes were exposed to 16.07 {+-} 1.64 ng/m{sup 3} total PAHs and 21.97 {+-} 1.50 ppb benzene, levels higher than in monks and nuns residing in nearby temples (5.34 {+-} 0.65 ng/m{sup 3} total PAHs and 13.69 {+-} 0.77 ppb benzene). Grilled-meat vendors in the same area were exposed to both total PAHs and benzene at even higher levels, possibly due to additional formation of PAHs during the grilling of meat (34.27 {+-} 7.02 ng/m{sup 3} total PAHs; 27.49 {+-} 2.72 ppb benzene). At the end of the workday, urinary 1-OHP levels in street vendors (0.12 and 0.15 {mu}mol/mol creatinine in clothes and grilled-meat vendors, respectively) were significantly higher than in controls (0.04 {mu}mol/mol creatinine; P < 0.01). Afternoon urinary t,t-MA levels in both groups of street vendors (0.12 mg/g creatinine) were also significantly higher than in controls (0.08 mg/g creatinine; P < 0.05). School children from two schools in Bangkok were exposed to total PAHs and benzene at levels of 6.70 {+-} 0.47 ng/m{sup 3} and 4.71 {+-} 0.25 ppb, respectively, higher than those to which children living outside the city were exposed (1.25 {+-} 0.24 ng/m{sup 3} total PAHs; 2.10 {+-} 0.16 ppb benzene). At the end of the school day, levels of urinary 1-OHP and t,t-MA were significantly higher (P < 0.001 and P < 0.01, respectively) in Bangkok school children (0.23 {mu}mol/mol creatinine and 0.27 mg/g creatinine, respectively) than in school children from outside Bangkok (0.10 {mu}mol/mol creatinine and 0.08 mg/g creatinine, respectively)

Ruchirawat, Mathuros [Laboratory of Environmental Toxicology, Chulabhorn Research Institute, Bangkok 10210 (Thailand) and Department of Pharmacology, Faculty of Science, Mahidol University, Bangkok 10400 (Thailand)]. E-mail: mathuros@tubtim.cri.or.th; Navasumrit, Panida [Laboratory of Environmental Toxicology, Chulabhorn Research Institute, Bangkok 10210 (Thailand); Settachan, Daam [Laboratory of Environmental Toxicology, Chulabhorn Research Institute, Bangkok 10210 (Thailand); Tuntaviroon, Jantamas [Laboratory of Environmental Toxicology, Chulabhorn Research Institute, Bangkok 10210 (Thailand); Buthbumrung, Nantaporn [Laboratory of Environmental Toxicology, Chulabhorn Research Institute, Bangkok 10210 (Thailand); Sharma, Suman [Laboratory of Environmental Toxicology, Chulabhorn Research Institute, Bangkok 10210 (Thailand)

2005-08-07T23:59:59.000Z

248

Photomagnetic Switching of the Complex [Nd(dmf)[subscript 4](H[subscript 2]O)[subscript 3]([mu]-CN)Fe(CN)[subscript 5  

SciTech Connect

Single-crystal XRD experiments (see picture) reveal the excited-state structure of the photomagnetic heterobimetallic title complex. The system shows a decrease in all the iron-ligand bond lengths, suggesting that photoexcitation involves a ligand-to-metal charge transfer or a change in the superexchange coupling between the metal centers.

Svendsen, Helle; Overgaard, Jacob; Chevallier, Marie; Collet, Eric; Iversen, Bo B.; (Aarhus); (Universite de Rennes)

2009-10-21T23:59:59.000Z

249

High-Resolution Observations with MU Radar of a KH Instability Triggered by an InertiaGravity Wave in the Upper Part of a Jet Stream  

Science Conference Proceedings (OSTI)

KelvinHelmholtz (KH) instability is likely one of the most important sources of clear-air turbulence in the lower atmosphere. It produces billows, which mix and transport heat and materials vertically in the stably stratified atmosphere. Billows ...

H. Luce; G. Hassenpflug; M. Yamamoto; S. Fukao; K. Sato

2008-05-01T23:59:59.000Z

250

Binuclear transition-metal complexes as new reagents for selective cross-linking of proteins. Coordination of cytochrome c to dirhodium(II). mu. -tetraacetate  

SciTech Connect

This study introduces binuclear transition-metal complexes as reagents for selective covalent cross-linking of proteins. Incubation of horse cytochrome c (designated cyt) with Rh{sub 2}(OAc){sub 4} under mild conditions yields the diprotein complex, Rh{sub 2}(OAc){sub 4}(cyt){sub 2}, whose composition is established by size-exclusion chromatography, uv-vis spectroscopy, and {sup 1}H NMR spectroscopy. The protein molecules are coordinated to the Rh atoms via the imidazole (Im) rings of their His 33 residues, as shown by uv difference and {sup 1}H NMR spectroscopy, by the pH effect on the complex formation, and by the control experiments with tuna cytochrome c. The diprotein complex is stable under ordinary conditions, and yet it can be cleaved, and the native protein recovered, by treatment with a suitable strong nucleophile. Spectroscopic and electrochemical measurements show that the structural and redox properties of cytochrome c are not perturbed significantly by cross-linking. Comparison between Rh{sub 2}(OAc){sub 4}(Im){sub 2} and Rh{sub 2}(OAc){sub 4}(cyt){sub 2} shows that the complex containing small ligands is not an entirely realistic model of the complex containing proteins. In particular, the enhanced stability of the latter toward hydrolysis may be due to steric bulk of the protein ligands and to hydrogen bonds that amino acid side chains may form with the inorganic link. Some of the findings of this study may pertain to the mechanism of antitumor action of the Rh{sub 2}(RCOO){sub 4} complexes. 86 refs., 2 tabs.

Chen, J.; Kostic, N.M. (Iowa State Univ., Ames (USA))

1988-07-27T23:59:59.000Z

251

Performance of an adaptive mu-focusing Kirkpatrick-Baez system for high-pressure studies at the Advanced Photon Source  

SciTech Connect

X-ray studies of materials in extreme conditions of pressure call for focusing optics able to deliver very clean micron-size focal spots of high energy X-rays with added stringent requirements of flexibility to accommodate different experimental geometries and fast focal spot size adjustment. These requirements are fully met by multi-electrode modular piezoelectric bimorph mirrors (PBMs) in Kirkpatrick-Baez configurations, and these optical systems have already been successfully used for several years at high brilliance 3rd generation synchrotron radiation facilities such as the ESRF and SPring-8. The optical characterization and in-situ X-ray performance of the first pair of modular PBMs installed at the Advanced Photon Source at Argonne national laboratory is reported here. Metrology tests show that the mirrors are able to approximate an arbitrary surface described by a 9th order polynomial in shape with only 100 {angstrom}; rms shape error over their full optical surface. Full adaptive zonal control allows wave front correction, delivers optimum focal spot profiles (as small as 8.5 (H) x 5.0 (V) {micro}m{sup 2} FWHM at a focal distance of 1 m) and fully achieves the creep-free short and long term stability and repeatability required by the experimental program.

Signorato, R.; Hausermann, D.; Somayazulu, M.; Carre, J.-F.

2004-06-04T23:59:59.000Z

252

REcuRsiVE TRust-REGion MEthoDs FoR MuLtiLEVEL NonLinEAR ...  

E-Print Network (OSTI)

Aug 11, 2004 ... the minimie ing se& uence at level6s 1.`r f%n&s 1b&t belongs to this minimie ing se uence,Hg e use the notation n55 Pt...

253

Investigation of changes in the angular divergence of helium--neon laser radiation (lambda = 3. 39. mu. ) as a function of the dispersion characteristic of the active medium  

SciTech Connect

The angular divergence of helium--neon laser radiation was found to depend on varation of the emission frequency within the limits of the gain profile of the active medium. The maximum relative change in the angular divergence was 4 +- 2%. This change appeared because of a nonlinear frequency dependence of the refractive index of the active medium in the region of the Doppler-broadened gain profile. The effect appeared particularly clear in the case of long optical paths.

Astakhov, A.V.; Gorlov, Y.V.; Mukhamedgalieva, A.F.; Nikitin, V.V.

1984-08-01T23:59:59.000Z

254

Halogenodisilanes: Precursors for New Disilane Derivatives Carsten Ackerhans, Peter Bo1ttcher, Peter Mu1ller, Herbert W. Roesky,* Isabel Uson,  

E-Print Network (OSTI)

Halogenodisilanes: Precursors for New Disilane Derivatives Carsten Ackerhans, Peter Bo1ttcher)] were prepared. The tetrachlorodisilanes 2a-e are converted to various functionalized disilanes resulted in the formation of the disilane RSiH2SiH2R [R ) (Me3Si)2CH] 7 and the metathesis with Me3Sn

Müller, Peter

255

Systematic examination of the impact of pre-stimulus alpha- mu and gamma band oscillations on perception : correlative and causal manipulation in mouse and human  

E-Print Network (OSTI)

The over-arching hypothesis that drives my work is that neural dynamics, fluctuating on millisecond to second time scales, powerfully impact perception. In this thesis, I employ correlative electrophysiological recording ...

Pritchett, Dominique L. (Dominique Leon)

2012-01-01T23:59:59.000Z

256

Fine-grained clay fraction (,0.2 {mu}m): An interesting tool to approach the present thermal and permeability state in active geothermal systems  

DOE Green Energy (OSTI)

We have investigated by X-ray diffraction the very fine grained secondary minerals (< 0.2 {micro}m) developed in geothermal systems, in relation with their present thermal and permeability state. Because the smallest particles are the most reactive part of a rock, they are the youngest mineral phases of the geothermal fields. This study has been performed on two active geothermal fields: Milos field, Greece (130 < T < 320 C) and Chipilapa field, Salvador (90 < T < 215 C). In the Milos field, the mineralogical composition of the < 0.2 {micro}m clay fraction observed in the reservoir strongly differs from the overlying altered metamorphic schists in the presence of abundant quantities of saponite and talc/saponite interstratified minerals at unusually high temperature. These phases are considered to be kinetically control-led ''metastable'' minerals which rapidly evolve towards actinolite and talc for present temperatures higher than 300 C. Their occurrence is a good indicator of discharge in highly permeable zones. In the geothermal field of Chipilapa, the mineralogical composition of the < 0.2 {micro}m clay fractions fairly agrees with the temperatures presently measured in the wells, whereas several discrepancies may be pointed out from the compositions of coarser clay fractions (< 5 {micro}m) which contain minerals inherited from higher temperature stages. Permeable zones may be evidenced from an increase of expandable components in the interstratified minerals and a decrease of the coherent domain of the unexpandable clay particles (chlorite).

Patrier, P.; Papapanagiotou, P.; Beaufort, D.; Traineau, H.; Bril, H.

1992-01-01T23:59:59.000Z

257

Very Long Baseline Neutrino Oscillation Experiment for Precise Determination of Oscillation Parameters and Search for nu_mu -> nu_e Appearance and CP Violation  

E-Print Network (OSTI)

The possibility of making a low cost, very intense (1MW) high energy proton source at the Brookhaven Alternating Gradient Synchrotron (BNL-AGS) along with the forthcoming new large underground detectors (approaching 1 MT in mass) at the National Underground Science and Engineering Laboratory (NUSEL) in Homestake, South Dakota or at the Waste Isolation Pilot Plant (WIPP) in Carlsbad, New Mexico, allows us to propose a program of experiments that will address fundamental aspects of neutrino oscillations and CP-invariance violation. This program is unique because of the very long baseline of more than 2500 km from BNL to the underground laboratory in the West. We used the running scenario of a low energy, wide band neutrino beam with 1 MW AGS, 500 kT of fiducial mass water Cherenkov detector, and 5x10^7 seconds of running time. In this report we show that with these conditions we precisely measure dm^2_32 and sin^2(2theta_23) and have excellent sensitivity to sin^2(2theta_13) with a distinctive signal spectrum. If sin^2(2theta_13) > 0.01 the experiment is sensitive to the CP-violating phase in the mixing matrix with only neutrino running. By running in the anti-neutrino mode we distinguish between the cases dm^2_31 > 0 versus dm^2_31 nu_e appearance channel.

BNL Neutrino Working Group; M. Diwan

2002-10-31T23:59:59.000Z

258

Comparison of silver sorbents for application to radioiodine control at the PUREX process facility modification. [Iodine 129  

SciTech Connect

In continued support of the design of the gaseous radioiodine control system for the PUREX Process Facility Modification (PFM), the Pacific Northwest Laboratory (PNL) conducted laboratory-scale measurements of the performance of four state-of-the-art sorbents for radioiodine in the dissolver offgas (DOG) of a nuclear reprocessing plant. The PFM is a new head-end treatment plant being designed by Westinghouse Hanford Company (WHC) for the PUREX Plant at the Hanford Site. The experiments performed measured the iodine effluent concentration from Norton silver mordenite (NAgZ), Linde silver mordenite (LAgZ), Linde silver faujasite (AgX), and silver nitrate-impregnated silicic acid (AgNO/sub 3/Si) during simulated normal operating conditions in the PFM after three shutdown/startup cycles, and during standby. At normal operating conditions the input gas is expected to have a dew point of 35/degree/C to 40/degree/C and contain 0.1 ..mu..mol I/L, 1 vol% NO, and 1 vol% NO /sub 2/. The sorbent bed would be at 150/degree/C. A shutdown/startup cycle consisted of eliminating iodine and NO/sub x/ from the input gas, cooling the bed to room temperature, stopping gas flow, and restarting the system. During standby conditions the input gas contained no iodine or NO/sub x/, the dew point was at 30/degree/C to 35/degree/C, and the bed temperature remained at 150/degree/C. This experimental study showed that 20 cm beds of NAgZ, LAgZ, and 18 wt% silver AgX could load up to 0.25 mmol I/g sorbent and routinely reduce the iodine concentration in a simulated PFM DOG from 0.1 ..mu..mol I/L to less than the target level of 10/sup /minus/5/ ..mu..mol I/L. In contrast, the AgNO/sub 3/Si unexpectedly failed to achieve this required level of performance, reducing the concentration on a routine basis only to 10/sup /minus/4/ to 10/sup /minus/2/ ..mu..mol I/L. 5 refs., 14 figs., 6 tabs.

Scheele, R.D.; Burger, L.L.; Halko, B.T.

1988-09-01T23:59:59.000Z

259

Quantitative Trait Locus (QTL) Mapping of Transpiration Efficiency Related to Pre-flower Drought Tolerance in Sorghum [Sorghum bicolor (L.) Moench  

E-Print Network (OSTI)

There is an increasing need to improve crop water-use efficiency (WUE) (ratio of whole-plant biomass to cumulative transpiration) due to decreased water availability and increased food and energy demands throughout the world. The objective of the study was to estimate the genetic variation and genetic basis for transpiration efficiency A:E (CO2 assimilation rate (A) divided by transpiration rate (E)) trait and its relationship to WUE related to pre-flower drought tolerance in recombinant inbred lines (RILs) of sorghum and associated QTLs. A greenhouse study was conducted at Bushland, TX, 2008, using 71 RILs derived from cross of Tx430 x Tx7078. A randomized complete block experimental design was used, with both genotype and water regime (40 and 80 percent water regime) as experimental factors, and four replications. Genotype had a significant effect on A, E and A:E under both the environments. Among the RILs, entry means for A:E ranged from 1.58 to 3.07 mmol CO2 mol^-1 H2O and 1.18 to 4.36 mmol CO2 mol^-1 H2O under 80 percent and 40 percent water regime, respectively. Heritability estimates based on individual environments for A:E , A and E were 0.77, 0.45 and 0.37 under 80 percent water regime and 0.90, 0.33 and 0.71 under 40 percent water regime, respectively. A genetic map was constructed by digital genotyping method using Illumina GAII sequencer with 261 informative indel/ single-nucleotide polymorphism (SNP's) markers distributed over 10 linkage groups. Three significant QTLs associated with transpiration efficiency were identified; two on SBI-09 and one on SBI-10 with one logarithmic of odds (LOD) interval length ranging from 5.3 to 5.7 cM and accounting for 17 percent - 21 percent of the phenotypic variation. In field and greenhouse evaluation of agronomic of traits at College Station and Halfway, TX, 91 QTL that control variation in six major agronomic traits such as plant height, flowering, biomass, leaf area, leaf greenness and stomatal density were identified. Co-localization of transpiration efficiency QTLs with agronomic traits such as leaf area, biomass, leaf width and stomatal density indicated that these agronomically important QTLs can be used for further improving the sorghum performance through marker assisted selection (MAS) under pre-flowering drought stress conditions.

Heraganahally Kapanigowda, Mohankumar

2011-05-01T23:59:59.000Z

260

Composition and decomposition of soybean and sorghum tissues grown under elevated atmospheric carbon dioxide  

Science Conference Proceedings (OSTI)

It has been hypothesized that changes in both quantity and quality of plant residue inputs to soils as atmospheric carbon dioxide (CO{sub 2}) concentration increases may alter carbon (C) and nitrogen (N) turnover rates and pool sizes. We determined the effect of elevated atmospheric CO{sub 2} on plant tissue quality, and how modifications in tissue quality affect C and N mineralization. Soybean and sorghum were grown under elevated (704.96 {plus_minus} 0.33 {mu}mol CO{sub 2} mol{sup {minus}1}) and ambient (357.44 {plus_minus} 0.12 {mu}mol CO{sub 2} mol{sup {minus}1}) atmospheric CO{sub 2} in open-top chambers. Leaf and stem tissues were separated form harvested plants and analyzed for C,N, lignin, and cellulose. Tissues were applied to Norfolk loamy sand (fine-loamy, siliceous, thermic Typic Kandiudult) and aerobically incubated for 70-d to determine C and N mineralization, C turnover, relative N mineralization, and C/N mineralized. Elevated CO{sub 2} had no effect on plant residue C concentration, but N concentration of soybean leaves and stems and sorghum stems was reduced; however, CO{sub 2} enrichment increased C/N ratio and lignin concentration for only sorghum stems and soybean leaves, respectively. Source of plant residue (i.e., produced under either elevated or ambient CO{sub 2}) had no impact on soil C turnover, relative N mineralization, cumulative C and N mineralization, and C/N mineralized. These data suggest that increasing atmospheric CO{sub 2} will have little effect on composition or decomposition of field crop residues. Thus, since CO{sub 2} enrichment results in increased photosynthetic C fixation, the possibility exists for increased soil C storage under field crops in an elevated CO{sub 2} world. 29 refs., 4 figs., 4 tabs.

Henning, F.P. [Cooperative Ext. Serv., Dunwoody, GA (United States); Wood, C.W. [Auburn Univ., AL (United States); Rogers, H.H.; Runion, G.B.; Prior, S.A. [National Soil Dynamics Lab., Auburn, AL (United States)

1996-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "mu mol mol-1" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Effects of Light and Temperature on Fatty Acid Production in Nannochloropsis Salina  

Science Conference Proceedings (OSTI)

Accurate prediction of algal biofuel yield will require empirical determination of physiological responses to the climate, particularly light and temperature. One strain of interest, Nannochloropsis salina, was subjected to ranges of light intensity (5-850 {mu}mol m{sup -2} s{sup -1}) and temperature (13-40 C); exponential growth rate, total fatty acids (TFA) and fatty acid composition were measured. The maximum acclimated growth rate was 1.3 day{sup -1} at 23 C and 250 {mu}mol m{sup -2} s{sup -1}. Fatty acids were detected by gas chromatography with flame ionization detection (GC-FID) after transesterification to corresponding fatty acid methyl esters (FAME). A sharp increase in TFA containing elevated palmitic acid (C16:0) and palmitoleic acid (C16:1) during exponential growth at high light was observed, indicating likely triacylglycerol accumulation due to photo-oxidative stress. Lower light resulted in increases in the relative abundance of unsaturated fatty acids; in thin cultures, increases were observed in palmitoleic and eicosapentaenoeic acids (C20:5{omega}3). As cultures aged and the effective light intensity per cell converged to very low levels, fatty acid profiles became more similar and there was a notable increase of oleic acid (C18:1{omega}9). The amount of unsaturated fatty acids was inversely proportional to temperature, demonstrating physiological adaptations to increase membrane fluidity. This data will improve prediction of fatty acid characteristics and yields relevant to biofuel production.

Van Wagenen, Jonathan M.; Miller, Tyler W.; Hobbs, Samuel J.; Hook, Paul W.; Crowe, Braden J.; Huesemann, Michael H.

2012-03-12T23:59:59.000Z

262

Concentrations and fluxes of dissolved biogenic gases (DMS, CH{sub 4}, CO, CO{sub 2}) in the equatorial Pacific during the SAGA 3 experiment  

Science Conference Proceedings (OSTI)

The equatorial Pacific Ocean is a source of both sulfur and carbon to the atmosphere. In February and March 1990, as part of the Soviet-American Gases and Aerosols (SAGA 3) expedition, dimethylsulfide (DMS), methane (CH{sub 4}), carbon monoxide (CO), and carbon dioxide (CO{sub 2}) partial pressures were determined in both surface seawater and the overlying atmosphere of the central equatorial Pacific Ocean (15{degrees}N to 10{degrees}S, 145{degrees}W to 165{degrees}W). The partial pressures were used to calculate the net flux of these gases from the ocean to the atmosphere. The average regional DMS and CO fluxes were similar, 7.1 and 4.2 {mu}mol/m{sup 2}/d, respectively. The mixing ratio of CH{sub 4} in surface seawater was close to equilibrium with the overlying atmosphere and hence the average flux was only 0.39 {mu}mol/m{sup 2}/d. The flux of CO{sub 2} clearly dominated the air-sea carbon exchange with an average regional flux of 5.4 mmol/m{sup 2}/d. 64 refs., 6 figs., 1 tab.

Bates, T.S.; Johnson, J.E. [Pacific Marine Environmental Lab., Seattle, WA (United States)]|[Univ. of Washington, Seattle, WA (United States); Kelly, K.C. [Pacific Marine Environmental Lab., Seattle, WA (United States)

1993-09-20T23:59:59.000Z

263

Analysis of Metabolic Pathways and Fluxes in a Newly Discovered Thermophilic and Ethanol-Tolerant Geobacillus Strain  

SciTech Connect

A recently discovered thermophilic bacterium, Geobacillus thermoglucosidasius M10EXG, ferments a range of C5 (e.g., xylose) and C6 sugars (e.g., glucose) and istolerant to high ethanol concentrations (10percent, v/v). We have investigated the central metabolism of this bacterium using both in vitro enzyme assays and 13C-based flux analysis to provide insights into the physiological properties of this extremophile and explore its metabolism for bio-ethanol or other bioprocess applications. Our findings show that glucose metabolism in G. thermoglucosidasius M10EXG proceeds via glycolysis, the pentose phosphate pathway, and the TCA cycle; the Entner?Doudoroff pathway and transhydrogenase activity were not detected. Anaplerotic reactions (including the glyoxylate shunt, pyruvate carboxylase, and phosphoenolpyruvate carboxykinase) were active, but fluxes through those pathways could not be accuratelydetermined using amino acid labeling. When growth conditions were switched from aerobic to micro-aerobic conditions, fluxes (based on a normalized glucose uptake rate of 100 units (g DCW)-1 h-1) through the TCA cycle and oxidative pentose phosphate pathway were reduced from 64+-3 to 25+-2 and from 30+-2 to 19+-2, respectively. The carbon flux under micro-aerobic growth was directed formate. Under fully anerobic conditions, G. thermoglucosidasius M10EXG used a mixed acid fermentation process and exhibited a maximum ethanol yield of 0.38+-0.07 mol mol-1 glucose. In silico flux balance modeling demonstrates that lactate and acetate production from G. thermoglucosidasius M10EXG reduces the maximum ethanol yieldby approximately threefold, thus indicating that both pathways should be modified to maximize ethanol production.

Tang, Yinjie J.; Sapra, Rajat; Joyner, Dominique; Hazen, Terry C.; Myers, Samuel; Reichmuth, David; Blanch, Harvey; Keasling, Jay D.

2009-01-20T23:59:59.000Z

264

UV-Photoassisted Etching of GaN in KOH  

SciTech Connect

The etch rate of GaN under W-assisted photoelectrochemical conditions in KOH solutions is found to be a strong function of illumination intensity, solution molarity, sample bias and material doping level. At low e-h pair generation rates, grain boundaries are selectively etched, while at higher illumination intensities etch rates for unintentionally doped (n - 3x 10^12Gcm-3) GaN are 2 1000 .min-l. The etching is diffusion limited under our conditions with an activation energy of - 0.8kCal.mol-1. The etched surfaces are rough, but retain their stoichiometry. PEC etching is found to selectively reveal grain boundaries in GaN under low light illumination conditions. At high lamp powers the rates increase with sample temperature and the application of bias to the PEC cell, while they go through a maximum with KOH solution molarity. The etching is diffusion-limited, producing rough surface morphologies that are suitable in a limited number of device fabrication steps. The surfaces however appear to remain relatively close to their stoichiometric composition.

Abernathy, C.R.; Auh, K.H.; Cho, H.; Donovan, S.M.; Han, J.; Lambers, E.S.; Pearton, S.J.; Ren F.; Shul, R.J.

1998-11-12T23:59:59.000Z

265

The activity of calcium in calcium-metal-fluoride fluxes  

Science Conference Proceedings (OSTI)

The standard Gibbs energy of reaction Ca (1) + {und O} (mass pct, in Zr) = CaO (s) has been determined as follows by equilibrating molten calcium with solid zirconium in a CaO crucible: {Delta}G{degree} = {minus}64,300({+-}700) + 19.8({+-}3.5)T J/mol (1,373 to 1,623 K). The activities of calcium in the CaO{sub satd.}-Ca-MF{sub 2} (M: Ca, Ba, Mg) and CaO{sub satd.}-Ca-NaF systems were measured as a function of calcium composition at high calcium contents at 1,473 K on the basis of the standard Gibbs energy. The activities of calcium increase in the order of CaF{sub 2}, BaF{sub 2}, and MgF{sub 2} at the same calcium fraction of these fluxes. The observed activities are compared with those estimated by using the Temkin model for ionic solutions. Furthermore, the possibility of the removal of tramp elements such as tin, arsenic, antimony, bismuth, and lead from carbon-saturated iron by using calcium-metal-fluoride fluxes is discussed.

Ochifuji, Yuichiro; Tsukihashi, Fumitaka; Sano, Nobuo [Univ. of Tokyo (Japan). Dept. of Metallurgy

1995-08-01T23:59:59.000Z

266

PubMed contains all of MEDLINE (1966-present), OLDMEDLINE (1946-1965), PubMed in-process records (new citations not yet fully indexed) and some additional non-MEDLINE citations. It is the primary database for researchers in the fields of biochemistry, mol  

E-Print Network (OSTI)

BASIC SEARCH TECHNIQUES PubMed searching is easy. Just enter your search terms in the search box to additional searching options. Keyword Searching Enter one or more keywords (e.g., molecular motors) in the search box and click Search. PubMed automatically combines (ANDs) significant terms together using

California at Berkeley, University of

267

A calculation of the QCD phase diagram at finite temperature, and baryon and isospin chemical potentials  

E-Print Network (OSTI)

We study the phases of a two-flavor Nambu-Jona-Lasinio model at finite temperature $T$, baryon and isospin chemical potentials: $\\mu_{B}=(\\mu_{u}+\\mu_{d})/2$, $\\mu_{I}=(\\mu_{u}-\\mu_{d})/2$. This study completes a previous analysis where only small isospin chemical potentials $\\mu_{I}$ were considered

A. Barducci; R. Casalbuoni; G. Pettini; L. Ravagli

2004-02-10T23:59:59.000Z

268

Maple 9 worksheet - CECM - Simon Fraser University  

E-Print Network (OSTI)

... improved)" }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 101 "rel := zip(`=`, [a,q], subs(a=(kappa+4)/4,q=mu/8,kappa= -mu+2*kappa,kappa = kappa/2,mu=mu/2,...

269

SV_Jurij.qxd 19/07/2002 08:59 Page 1 Podru`ni~na cerkev v Tacnu je posve~ena sv. Juriju, mu~encu.  

E-Print Network (OSTI)

tronu je cerkveni zavetnik sv. Jurij, rimski vojak, ki s sulico prebada zmaja. Slike za zapiranje trona ni. Ob stenah trona so stirje evangelisti: desno ob njem sv. Marko, na obhodnem loku sv. Matej, levo

Silc, Jurij

270

Facile Thermal W-W Bond Homolysis in the N-Heterocyclic Carbene-Containing Tungsten Dimer [CpW(CO)2(IMe)]2  

SciTech Connect

The thermal W-W bond homolysis in [CpW(CO)2(IMe)]2 (IMe = 1,3-dimethylimidazol-2-ylidene) was investigated and was found to occur to a large extent compared to other tungsten dimers such as [CpW(CO)3]2. CpW(CO)2(IMe)H was prepared by heating a solution of [IMeH]+[CpW(CO)2(PMe3)]?, and exists in solution as a mixture of interconverting cis and trans isomers. The carbene rotation in CpW(CO)2(IMe)H was explored by DFT calculations, and low enthalpic barriers (< 3.5 kcal mol?1) are predicted. CpW(CO)2(IMe)H has pKaMeCN = 31.5(3) and deprotonation with KH gives K+[CpW(CO)2(IMe)]? ( MeCN). Hydride abstraction from CpW(CO)2(IMe)H with Ph3C+PF6? in the presence of a coordinating ligand L (MeCN or THF) gives [CpW(CO)2(IMe)(L)]+PF6?. Electrochemical measurements on the anion [CpW(CO)2(IMe)]? in MeCN, together with digital simulations, give an E1/2 of ?1.54(2) V vs Cp2Fe+/0 for the [CpW(CO)2(IMe)]/? couple. A thermochemical cycle provides the solution bond dissociation free energy of the W-H bond of CpW(CO)2(IMe)H as 61.3(6) kcal mol?1. In the electrochemical oxidation of [CpW(CO)2(IMe)]?, reversible dimerization of the electrogenerated radical CpW(CO)2(IMe) occurs, and digital simulation provides kinetic and thermodynamic parameters for the monomer-dimer equilibrium: kdimerization ~ 2.5 ? 104 M?1 s?1, khomolysis ~ 0.5 s?1 (i.e., Kdim ~ 5 ? 104 M?1). Reduction of [CpW(CO)2(IMe)(MeCN)]+PF6? with cobaltocene gives the dimer [CpW(CO)2(IMe)]2, which in solution exists as a mixture of anti and gauche rotomers. As expected from the electrochemical experiments, the dimer is in equilibrium with detectable amounts of CpW(CO)2(IMe). This species was observed by IR spectroscopy, and its presence in solution is also in accordance with the observed reactivity toward 2,6-di-tert-butyl-1,4-benzoquinone, chloroform and dihydrogen. This work was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Division of Chemical Sciences, Biosciences and Geosciences. Pacific Northwest National Laboratory is a multiprogram national laboratory operated for DOE by Battelle. The EPR studies were performed at EMSL, a national scientific user facility sponsored by the Department of Energys Office of Biological and Environmental Research located at Pacific Northwest National Laboratory.

van der Eide, Edwin F.; Liu, Tianbiao L.; Camaioni, Donald M.; Walter, Eric D.; Bullock, R. Morris

2012-03-05T23:59:59.000Z

271

MRP2 and the handling of mercuric ions in rats exposed acutely to inorganic and organic species of mercury  

Science Conference Proceedings (OSTI)

Mercuric ions accumulate preferentially in renal tubular epithelial cells and bond with intracellular thiols. Certain metal-complexing agents have been shown to promote extraction of mercuric ions via the multidrug resistance-associated protein 2 (MRP2). Following exposure to a non-toxic dose of inorganic mercury (Hg{sup 2+}), in the absence of complexing agents, tubular cells are capable of exporting a small fraction of intracellular Hg{sup 2+} through one or more undetermined mechanisms. We hypothesize that MRP2 plays a role in this export. To test this hypothesis, Wistar (control) and TR{sup -} rats were injected intravenously with a non-nephrotoxic dose of HgCl{sub 2} (0.5 {mu}mol/kg) or CH{sub 3}HgCl (5 mg/kg), containing [{sup 203}Hg], in the presence or absence of cysteine (Cys; 1.25 {mu}mol/kg or 12.5 mg/kg, respectively). Animals were sacrificed 24 h after exposure to mercury and the content of [{sup 203}Hg] in blood, kidneys, liver, urine and feces was determined. In addition, uptake of Cys-S-conjugates of Hg{sup 2+} and methylmercury (CH{sub 3}Hg{sup +}) was measured in inside-out membrane vesicles prepared from either control Sf9 cells or Sf9 cells transfected with human MRP2. The amount of mercury in the total renal mass and liver was significantly greater in TR{sup -} rats than in controls. In contrast, the amount of mercury in urine and feces was significantly lower in TR{sup -} rats than in controls. Data from membrane vesicles indicate that Cys-S-conjugates of Hg{sup 2+} and CH{sub 3}Hg{sup +} are transportable substrates of MRP2. Collectively, these data indicate that MRP2 plays a role in the physiological handling and elimination of mercuric ions from the kidney.

Bridges, Christy C., E-mail: Bridges_cc@mercer.edu; Joshee, Lucy; Zalups, Rudolfs K.

2011-02-15T23:59:59.000Z

272

Simple but Stronger UO, Double but Weaker UNMe Bonds: The Tale Told by Cp2UO and Cp2UNR  

Science Conference Proceedings (OSTI)

The free energies of reaction and the activation energies are calculated, with DFT (B3PW91) and small RECP (relativistic core potential) for uranium, for the reaction of Cp2UNMe and Cp2UO with MeCCMe and H3Si-Cl that yields the corresponding addition products. CAS(2,7) and DFT calculations on Cp2UO and Cp2UNMe give similar results, which validates the use of DFT calculations in these cases. The calculated results mirror the experimental reaction of [1,2,4-(CMe3)3C5H2]2UNMe with dimethylacetylene and [1,2,4-(CMe3)3C5H2]2UO with Me3SiCl. The net reactions are controlled by the change in free energy between the products and reactants, not by the activation energies, and therefore by the nature of the UO and UNMe bonds in the initial and final states. A NBO analysis indicates that the U-O interaction in Cp2UO is composed of a single U-O bond with three lone pairs of electrons localized on oxygen, leading to a polarized U-O fragment. In contrast, the U-NMe interaction in Cp2UNMe is composed of a and component and a lone pairof electrons localized on the nitrogen, resulting in a less polarized UNMe fragment, in accord with the lower electronegativity of NMe relative to O. The strongly polarized U(+)-O(-) bond is calculated to be about 70 kcal mol-1 stronger than the less polarized U=NMe bond.

LPCNO, CNRS-UPS-INSA, INSA Toulouse; Institut Charles Gerhardt, CNRS, Universite Montpellier; Laboratoire de Chimie et Physique Quantiques, CNRS, IRSAMC, Universite Paul Sabatier; Andersen, Richard; Barros, Noemi; Maynau, Daniel; Maron, Laurent; Eisenstein, Odile; Zi, Guofu; Andersen, Richard

2007-06-27T23:59:59.000Z

273

Arsenic remediation of drinking water using iron-oxide coated coal bottom ash  

Science Conference Proceedings (OSTI)

We describe laboratory and field results of a novel arsenic removal adsorbent called 'Arsenic Removal Using Bottom Ash' (ARUBA). ARUBA is prepared by coating particles of coal bottom ash, a waste material from coal fired power plants, with iron (hydr)oxide. The coating process is simple and conducted at room temperature and atmospheric pressure. Material costs for ARUBA are estimated to be low (~;;$0.08 per kg) and arsenic remediation with ARUBA has the potential to be affordable to resource-constrained communities. ARUBA is used for removing arsenic via a dispersal-and-removal process, and we envision that ARUBA would be used in community-scale water treatment centers. We show that ARUBA is able to reduce arsenic concentrations in contaminated Bangladesh groundwater to below the Bangladesh standard of 50 ppb. Using the Langmuir isotherm (R2 = 0.77) ARUBA's adsorption capacity in treating real groundwater is 2.6x10-6 mol/g (0.20 mg/g). Time-to-90percent (defined as the time interval for ARUBA to remove 90percent of the total amount of arsenic that is removed at equilibrium) is less than one hour. Reaction rates (pseudo-second-order kinetic model, R2>_ 0.99) increase from 2.4x105 to 7.2x105 g mol-1 min-1 as the groundwater arsenic concentration decreases from 560 to 170 ppb. We show that ARUBA's arsenic adsorption density (AAD), defined as the milligrams of arsenic removed at equilibrium per gram of ARUBA added, is linearly dependent on the initial arsenic concentration of the groundwater sample, for initial arsenic concentrations of up to 1600 ppb and an ARUBA dose of 4.0 g/L. This makes it easy to determine the amount of ARUBA required to treat a groundwater source when its arsenic concentration is known and less than 1600 ppb. Storing contaminated groundwater for two to three days before treatment is seen to significantly increase ARUBA's AAD. ARUBA can be separated from treated water by coagulation and clarification, which is expected to be less expensive than filtration of micron-scale particles, further contributing to the affordability of a community-scale water treatment center.

MATHIEU, JOHANNA L.; GADGIL, ASHOK J.; ADDY, SUSAN E.A.; KOWOLIK, KRISTIN

2010-06-01T23:59:59.000Z

274

Carbon dioxide, hydrographic, and chemical data obtained in the Central South Pacific Ocean (WOCE sections P17S and P16S) during the tunes-2-expedition of the R/V Thomas Washington, July--August 1991  

Science Conference Proceedings (OSTI)

This data documentation discusses the procedures and methods used to measure total carbon dioxide (TCO{sub 2}), discrete partial pressure of TCO{sub 2} (pCO{sub 2}), and total alkalinity (TALK), during the Research Vessel (R/V) Thomas Washington TUNES Leg 2 Expedition in the central South Pacific Ocean. Conducted as part of the World Ocean Circulation Experiment (WOCE), the cruise began in Papeete, Tahiti, French Polynesia, on July 16, 1991, and returned to Papeete on August 25, 1991. WOCE Meridional Sections P17S along 135{degrees} W and P16S along 150{degrees} W were completed during the 40-day expedition. A total of 97 hydrographic stations were occupied. Hydrographic and chemical measurements made along WOCE Sections P17S and P16S included pressure, temperature, salinity, and oxygen measured by conductivity, temperature and depth sensor; bottle salinity; oxygen; phosphate; nitrate; nitrite; silicate; CFC-12; CFC- 11; TCO{sub 2}; TALK; and pCO{sub 2} measured at 20{degrees}C. The TCO{sub 2} concentration in 1000 seawater samples was determined with a coulometric analysis system, the pCO{sub 2} in 940 water samples was determined with an equilibrator/gas chromatograph system, while the TALK concentration in 139 samples was determined on shore at the laboratory of C. Goyet of Woods Hole Oceanographic Institution with an alkalinity titration system. In addition, 156 coulometric measurements for the Certified Reference Material (Batch {number_sign}6) were made and yielded a mean value of 2303.2 {plus_minus} 1.5 {mu}mol/kg. This mean value agrees within a standard deviation of the 2304.6 {plus_minus} 1.6 {mu}mol/kg (N=9) value determined with the manometer of C. D. Keeling at Scripps Institution of Oceanography (SIO). Replicate samples from 11 Niskin bottles at 4 stations were also collected for later shore-based reference analyses of TCO{sub 2} and TALK by vacuum extraction and manometry in the laboratory of C. D. Keeling of SIO.

NONE

1991-12-31T23:59:59.000Z

275

Silica and boron-containing ultraphosphate laser glass with low concentration quenching and improved thermal shock resistance  

DOE Patents (OSTI)

Neodymium-doped phosphate glasses having a refractive index, nd>1.520; an Abbe number, Vd, <60; a density <3.0 g/cm.sup.3, a thermal expansion coefficient, .alpha., .ltoreq.110.times.10.sup.-7 .degree.C..sup.-1 ; a Young's Modulus, E, <70.times.10.sup.3 N/mm.sup.2 ; a Poisson's Ratio, .nu., <0.28; a thermal conductivity, K, >0.5 W/m.multidot.K, a thermal FOM=(1-.nu.).multidot.K/.alpha.E>0.7, consisting essentially of, in mol. %: P.sub.2 O.sub.5 : 40-70% SiO.sub.2 : 0-20% B.sub.2 O.sub.3 : 5-20% Sum SiO.sub.2 +B.sub.2 O.sub.3 : 5-35% Sum Li.sub.2 O+Na.sub.2 O+K.sub.2 O: 5-20% Sum La.sub.2 O.sub.3 +Nd.sub.2 O.sub.3 : 3-10% Sum MgO+CaO+SrO+BaO+ZnO: 0-10% and preferably containing an amount of Nd.sub.2 O.sub.3 effective for laser activity having an emission cross-section, .sigma., >3.5.times.10.sup.-20 cm.sup.2 ; a fluorescence linewidth (.DELTA..lambda..sub.f1)<23.5 nm; a first e-folding time of the Nd.sup.3+ fluorescence at 0.5 wt. % Nd.sub.2 O.sub.3 >375 .mu.sec, and a first e-folding time of the Nd.sup.3+ fluorescence at 10 wt. % >175 .mu.sec at 10 wt. %, have very low self-concentration quenching rates.

Cook, Lee M. (Duryea, PA); Stokowski, Stanley E. (Danville, CA)

1987-04-28T23:59:59.000Z

276

Synthesis and Study of Boron and Antimony Lewis Acids as Small Anion Receptors and Ligands Towards Transition Metals  

E-Print Network (OSTI)

Although fluoride is used at low concentrations in drinking water as a means of promoting dental health, it poses a danger at high exposure levels where it can lead to skeletal fluorosis or other adverse effects. Cyanide is notoriously toxic, and its large scale use in industrial processes warrants the need for close monitoring to remain aware of potential contamination of water sources and other environmental resources. Based on these considerations, it is critical to continue to develop improved methods of monitoring fluoride and cyanide concentrations in water. However, molecular recognition of these anions in water poses considerable challenges. For fluoride, this is due largely to its high hydration enthalpy (?Ho = -504 kJ mol-1), which drastically reduces its reactivity in water. Additionally, the strong basicity of cyanide (pKa of (HCN) = 9.3) may obscure its detection in neutral water due to protonation. In addition to achieving detection of these anions in water, it is most desirable to have information of the detection event relayed in the form of a positive, rather than negative, response (i.e., turn-on vs turn-off). The general strategy of appending cationic groups to triarylboranes imparts beneficial Coulombic, inductive, and sometimes chelate effects that have allowed a number of these Lewis acidic receptors to sense fluoride and cyanide in aqueous environments. With the goal of developing new triarylborane-based receptors that show enhanced affinities for these anions, as well as turn-on responses to detection, a series of pyridinium boranes were synthesized and studied. Having recognized that the inherent Lewis acidity of antimony(V) species might be exploited for anion sensing, we also describe initial studies on the ability of tetraorganostibonium ions (R4Sb+) and cationic transition metal-triarylstibine complexes (R3SbM+) to complex fluoride. Finally, the electropositivity of antimony and its ability to form stable compounds in both the +3 and +5 oxidation states have led us to begin investigations into the bonding and redox reactivity of novel metal stibine/stiborane complexes.

Wade, Casey

2011-12-01T23:59:59.000Z

277

Experimental and Theoretical Evidence of Basic Site Preference in Polyfunctional Superbasic Amidinazine: N-1,N-1-Dimethyl-N-2-beta-(2-pyridylethyl)formamidine  

SciTech Connect

The gas-phase basicity (GB) of the flexible polyfunctional N1,N1-dimethyl-N2-a-(2-pyridylethyl)-formamidine (1) containing two potential basic sites (the ring N-aza and the chain N-imino) is obtained from proton-transfer equilibrium constant measurements, using Fourier-transform ioncyclotron resonance mass spectrometry. Comparison of the experimental GB obtained for 1 with those reported for model amidines and azines indicates that the chain N-imino in the amidine group is the favored site of protonation. Semiempirical (AM1) and ab initio calculations (HF, MP2, and DFT), performed for 1 and its protonated forms, confirm this interpretation. These results are in contrast to those found previously for N1,N1-dimethyl-N2-azinylformamidines (containing the amidine function directly linked to the azinyl ring), in which the ring N-aza is the most basic site in the gas phase. The separation of the two potential basic sites in 1 by the ethylene chain interrupts the resonance conjugation between the two functions and changes their relative basicities and, thus, the preferable site of protonation. It also increases the chelation effect against the proton and the gas-phase basicity of 1 in such a magnitude that consequently 1 may be classified as a superbase (GB 241.1 kcal mol-1). A transition state corresponding to the internal transfer of the proton (ITP) between the ring N-aza and the chain N-imino in 1 is investigated at the DFT(B3LYP)/6-31G** level. The energy barrier calculated for the ITP between the two basic sites is small and vanishes when zero-point vibrational terms and thermal corrections are applied to obtain the enthalpy or Gibbs energy of activation for the proton transfer. Additional calculations at the DFT-(MPW1K)/6-31G** level confirm this behavior. This indicates that the quantum-chemical ITP in 1 has a single-well character. The proton is located on the N-imino site, and the H-bond is formed

Raczynska, Ewa D.; Darowska, Malgorzata; Dabkowska, Iwona; Decouzon, Michele; Gal, Jean-Francois; Maria, Pierre-Charles; Poliart, Christine D.

2004-06-11T23:59:59.000Z

278

Low Pressure, Vacuum, and Leak Measurements  

Science Conference Proceedings (OSTI)

... 140 kPa Oil UIM: 3 Pa gas-flow instruments are calibrated in the ... 8 to 10 -3 ) mol/s with inert gases and other ...

2013-06-24T23:59:59.000Z

279

Stretching and twisting chromatin  

E-Print Network (OSTI)

core histones. NAP-1, and ACF. J. Mol. Biol. 351: 8999.core histones, NAP-1, and ACF. J. Mol. Biol. 351: 8999. 65.

Dobrovolskaia, Irina V.; Dobrovolskaia, Irina V.

2012-01-01T23:59:59.000Z

280

Wheat grain quality under enhanced tropospheric CO{sub 2} and O{sub 3} concentrations  

SciTech Connect

It is expected that the progressive increase of tropospheric trace gases such as CO{sub 2} and O{sub 3} will have a significant impact on agricultural production. The single and combined effects of CO{sub 2} enrichment and tropospheric O{sub 3} on grain quality characteristics in soft red winter wheat (Triticum aestivum L.) were examined in field studies using 3 m in diam. open-top chambers. Wheat cultivars {open_quotes}Massey{close_quotes} (1991) and {open_quotes}Saluda{close_quotes} (1992) were exposed to two CO{sub 2} concentrations (350 vs. 500 {mu}mol CO{sub 2} mol{sup {minus}1}; 12 h d{sup {minus}1}) in combination with two O{sub 3} regimes (charcoal-filtered air vs. ambient air + 40 {plus_minus} 20 nmol O{sub 3} mol{sup {minus}1}, 7 h d{sup {minus}1}; Monday to Friday) from late March until maturity in June. Grain quality characteristics investigated included: test weight, milling and baking quality, flour yield, protein content, softness equivalent, alkaline water retention capacity, and cookie diameter. In general, exposure of plants to either elevated CO{sub 2} or weekly chronic O{sub 3} episodes caused only small changes in grain quality. Milling and baking quality score were not significantly changed in response to treatments in both years. Flour yield was increased by elevated CO{sub 2} but this increase was counteracted when elevated CO{sub 2} was combined with chronic O{sub 3} exposure. Flour protein contents were increased by enhanced O{sub 3} under elevated CO{sub 2}. Although the single effect of either CO{sub 2} enrichment or chronic O{sub 3} exposure had some impact o grain quality characteristics, it was noted that the combined effect of these gases was minor. It is likely that the concomitant increase of CO{sub 2} and O{sub 3} in the troposphere will have no significant impact on wheat grain quality. 25 refs., 1 fig., 2 tabs.

Rudorff, B.F.T. [National Space Research Inst., Sao Jose dos Campos (Brazil); Mulchi, C.L. [Univ. of Maryland, College Park, MD (United States); Fenny, P. [USDA-ARS Soft Wheat Quality Lab., Wooster, OH (United States)] [and others

1996-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "mu mol mol-1" 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

Arsenic remediation of drinking water using iron-oxide coated coal bottom  

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

Arsenic remediation of drinking water using iron-oxide coated coal bottom Arsenic remediation of drinking water using iron-oxide coated coal bottom ash Title Arsenic remediation of drinking water using iron-oxide coated coal bottom ash Publication Type Journal Article Year of Publication 2010 Authors Mathieu, Johanna L., Ashok J. Gadgil, Susan E. Addy, and Kristin Kowolik Journal Environmental Science and Health Keywords airflow and pollutant transport group, arsenic, bangladesh, coal bottom ash, drinking water, indoor environment department, water contaminants, water treatment Abstract We describe laboratory and field results of a novel arsenic removal adsorbent called 'Arsenic Removal Using Bottom Ash' (ARUBA). ARUBA is prepared by coating particles of coal bottom ash, a waste material from coal fired power plants, with iron (hydr)oxide. The coating process is simple and conducted at room temperature and atmospheric pressure. Material costs for ARUBA are estimated to be low (~$0.08 per kg) and arsenic remediation with ARUBA has the potential to be affordable to resource-constrained communities. ARUBA is used for removing arsenic via a dispersal-and-removal process, and we envision that ARUBA would be used in community-scale water treatment centers. We show that ARUBA is able to reduce arsenic concentrations in contaminated Bangladesh groundwater to below the Bangladesh standard of 50 ppb. Using the Langmuir isotherm (R2 = 0.77) ARUBA's adsorption capacity in treating real groundwater is 2.6×10-6 mol/g (0.20 mg/g). Time-to-90% (defined as the time interval for ARUBA to remove 90% of the total amount of arsenic that is removed at equilibrium) is less than one hour. Reaction rates (pseudo-second-order kinetic model, R2 ≥ 0.99) increase from 2.4×105 to 7.2×105 g mol-1 min-1 as the groundwater arsenic concentration decreases from 560 to 170 ppb. We show that ARUBA's arsenic adsorption density (AAD), defined as the milligrams of arsenic removed at equilibrium per gram of ARUBA added, is linearly dependent on the initial arsenic concentration of the groundwater sample, for initial arsenic concentrations of up to 1600 ppb and an ARUBA dose of 4.0 g/L. This makes it easy to determine the amount of ARUBA required to treat a groundwater source when its arsenic concentration is known and less than 1600 ppb. Storing contaminated groundwater for two to three days before treatment is seen to significantly increase ARUBA's AAD. ARUBA can be separated from treated water by coagulation and clarification, which is expected to be less expensive than filtration of micron-scale particles, further contributing to the affordability of a community-scale water treatment center

282

$?- e$ Conversion With Four Generations  

E-Print Network (OSTI)

We study $\\mu - e$ conversion with sequential four generations. A large mass for the fourth generation neutrino can enhance the conversion rate by orders of magnitude. We compare constraints obtained from $\\mu - e$ conversion using experimental bounds on various nuclei with those from $\\mu \\to e \\gamma$ and $\\mu \\to e\\bar e e$. We find that the current bound from $\\mu - e$ conversion with Au puts the most stringent constraint in this model. The relevant flavor changing parameter $\\lambda_{\\mu e} = V^*_{\\mu 4}V_{e4}^{}$ is constrained to be less than $1.6\\times 10^{-5}$ for the fourth generation neutrino mass larger than 100 GeV. Implications for future $\\mu -e$ conversion, $\\mu \\to e\\gamma$ and $\\mu \\to e\\bar e e$ experiments are discussed.

N. G. Deshpande; T. Enkhbat; T. Fukuyama; X. -G. He; L. -H. Tsai; K. Tsumura

2011-06-25T23:59:59.000Z

283

Ultrabroadband optical parametric chirped-pulse amplifier using a fan-out periodically poled crystal with spectral spatial dispersion  

Science Conference Proceedings (OSTI)

Based on the full two-dimensional characteristics of the quasi-phase-matched fan-out periodically poled crystal, a scalable and engineerable scheme for ultrabroadband optical parametric chirped-pulse amplification is proposed, which can significantly broaden the gain bandwidth by the spatial separation of different frequency components of the signal pulse and manipulation of the distribution of the pump beam along the fan-out direction of the crystal. The theoretical analysis shows that the signal pulse can be amplified with minimal spectrum narrowing, and the initial spectrum can be broadened considerably if needed. Based on this scheme, using a fan-out periodically poled 5% mol MgO-doped congruent lithium niobate with a configuration of 5x0.5x5 mm{sup 3} and two pump beams, the 3.3-{mu}m middle-infrared ultrabroadband optical parametric chirped-pulse amplifier is designed. The numerical computation results confirm that the -3 dB gain bandwidth of this amplifier exceeds 320 nm and can be further broadened.

Chen Liezun; Wang Youwen [Key Laboratory for Micro/Nano Optoelectronic Devices of Ministry of Education, School of Information Science and Engineering, Hunan University, Changsha 410082 (China); Department of Physics and Electronic Information Science, Hengyang Normal University, Hengyang 421008 (China); Wen Shuangchun; Fan Dianyuan [Key Laboratory for Micro/Nano Optoelectronic Devices of Ministry of Education, School of Information Science and Engineering, Hunan University, Changsha 410082 (China); You Kaiming [Department of Physics and Electronic Information Science, Hengyang Normal University, Hengyang 421008 (China); Qian Liejia [Department of Optical Science and Engineering, Fudan University, Shanghai 200433 (China)

2010-10-15T23:59:59.000Z

284

New oxyfluoride glass with high fluorine content and laser patterning of nonlinear optical BaAlBO{sub 3}F{sub 2} single crystal line  

Science Conference Proceedings (OSTI)

A new oxyfluoride glass of 50BaF{sub 2}-25Al{sub 2}O{sub 3}-25B{sub 2}O{sub 3} (mol. %) with a large fraction of fluorine, i.e., F/(F + O) = 0.4, was prepared using a conventional melt-quenching method in order to synthesize new glass-ceramics containing nonlinear optical oxyfluoride crystals. The refractive index at 632.8 nm and ultra-violet cutoff wavelength of the glass were 1.564 and {approx}200 nm, respectively. Eu{sup 3+} ions in the glass showed a high quantum yield of 88% in the photoluminescence spectrum in the visible region. BaAlBO{sub 3}F{sub 2} crystals (size: 50-100 nm) showing second harmonic generations were formed through the crystallization of the glass. Lines consisting of BaAlBO{sub 3}F{sub 2} crystals were patterned successfully on the glass surface by laser irradiations (Yb:YVO{sub 4} laser with a wavelength of 1080 nm, laser power of 1.1 W, scanning speed of 8 {mu}m/s). High resolution transmission electron microscope observations combined with a focused ion beam technique indicate that BaAlBO{sub 3}F{sub 2} crystals are highly oriented just like a single crystal. The present study proposes that the new oxyfluoride glass and glass-ceramics prepared have a high potential for optical device applications.

Shionozaki, K.; Honma, T.; Komatsu, T. [Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka 940-2188 (Japan)

2012-11-01T23:59:59.000Z

285

Thermophysical Properties of Fluid Systems  

Science Conference Proceedings (OSTI)

... Density, mol/l mol/m3 g/ml kg/m3 lb-mole/ft3 lbm/ft3. Energy, kJ/mol kJ/kg kcal/mol Btu/lb-mole kcal/g Btu/lbm. Velocity, m/s ft/s mph. ... All rights reserved ...

2013-07-15T23:59:59.000Z

286

Bioreactors Modeling and Control  

E-Print Network (OSTI)

., Pretreatment of Lignocellulosic Wastes to improve ethanol and biogas production: A review. Int. J. Mol. Sci

Grossmann, Ignacio E.

287

Spaces of Type BLO on Non-homogeneous Metric Measure Spaces  

E-Print Network (OSTI)

Let $({\\mathcal X}, d, \\mu)$ be a metric measure space and satisfy the so-called upper doubling condition and the geometrically doubling condition. In this paper, the authors introduce the space ${\\mathop\\mathrm{RBLO}}(\\mu)$ and prove that it is a subset of the known space ${\\mathop\\mathrm{RBMO}}(\\mu)$ in this context. Moreover, the authors establish several useful characterizations for the space ${\\mathop\\mathrm{RBLO}}(\\mu)$. As an application, the authors obtain the boundedness of the maximal Calder\\'on-Zygmund operators from $L^\\infty(\\mu)$ to ${\\mathop\\mathrm{RBLO}}(\\mu)$.

Lin, Haibo

2010-01-01T23:59:59.000Z

288

The Hardy Space $H^1$ on Non-homogeneous Metric Spaces  

E-Print Network (OSTI)

Let $({\\mathcal X}, d, \\mu)$ be a metric measure space and satisfy the so-called upper doubling condition and the geometrical doubling condition. In this paper, we introduce the atomic Hardy space $H^1(\\mu)$ and prove that its dual space is the known space ${\\rm RBMO}(\\mu)$ in this context. Using this duality, we establish a criterion for the boundedness of linear operators from $H^1(\\mu)$ to any Banach space. As an application of this criterion, we obtain the boundedness of Calder\\'on--Zygmund operators from $H^1(\\mu)$ to $L^1(\\mu)$.

Hytnen, Tuomas; Yang, Dongyong

2010-01-01T23:59:59.000Z

289

Lepton flavor violation decays with the fourth generation neutrino  

E-Print Network (OSTI)

We investigate the lepton flavor violation decays, $\\tau \\to \\mu\\gamma$, $\\tau \\to e\\gamma$ and $\\mu \\to e\\gamma$, in the framwork of a squential fourth generation model with a heavy fourth neutrino, $\

Huo, W J; Huo, Wu-Jun; Feng, Tai-Fu

2002-01-01T23:59:59.000Z

290

The design and characterization of a microcalorimeter to aid drug discovery  

E-Print Network (OSTI)

This thesis describes the design and characterization of a microcalorimeter used to aid drug discovery. There are four key functional requirements for the device: (1.) 8.4 [mu]J energy resolution, (2.) 20 [mu]L reactant ...

McEuen, Scott Jacob

2008-01-01T23:59:59.000Z

291

--No Title--  

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

R&D for Mu2e conversion experiment MicroBooNE neutrino detector R&D for MicroBooNE neutrino experiment Proposed Mu2e experiment NOvA prototype detector Hydraulic platform for...

292

Shital A. Tripathi  

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

(30). The pyrF and pta deletion 13 vectors (pMU769 and pMU1162, respectively) contained cat (chloramphenicol acetyl- 14 transferase) expressed from the C. thermocellum gapDH...

293

Design and development of a high-altitude, in-flight-deployable micro-UAV  

E-Print Network (OSTI)

A micro-UAV ([mu] UAV) system was developed to provide maximum endurance for a small atmospheric sensing payload. The system, composed of a ([mu] UAV) and protective case, folds and fits into a MJU-10/B flare cartridge ...

Tao, Tony S

2012-01-01T23:59:59.000Z

294

Search for the Lepton-Number-Violating Decay $?^- \\to p ?^- ?^-$  

E-Print Network (OSTI)

A sensitive search for the lepton-number-violating decay $\\Xi^-\\to p \\mu^-\\mu^-$ has been performed using a sample of $\\sim10^9$ $\\Xi^-$ hyperons produced in 800 GeV/$c$ $p$-Cu collisions. We obtain $\\mathcal{B}(\\Xi^-\\to p \\mu^-\\mu^-)< 4.0\\times 10^{-8}$ at 90% confidence, improving on the best previous limit by four orders of magnitude.

HyperCP Collaboration; D. Rajaram; R. A. Burnstein; A. Chakravorty; Y. C. Chen; W. -S. Choong; K. Clark; E. C. Dukes; C. Durandet; J. Felix; Y. Fu; G. Gidal; H. R. Gustafson; T. Holmstrom; M. Huang; C. James; C. M. Jenkins; T. D. Jones; D. M. Kaplan; M. J. Longo; L. C. Lu; W. Luebke; K. -B. Luk; K. S. Nelson; H. K. Park; J. -P. Perroud; H. A. Rubin; J. Volk; C. G. White; S. L. White; P. Zyla

2005-05-12T23:59:59.000Z

295

Unification of Gravity and Electromagnetism Revisited  

E-Print Network (OSTI)

Unification of gravity and electromagnetism based on a theory with an affine non-symmetric connection $\\Gamma^\\lambda_{\\mu\

Partha Ghose

2013-02-14T23:59:59.000Z

296

A FIRST ACCOUNT OF FRESHWATER POTAMOLEPID SPONGES (DEMOSPONGIAE, SPONGILLINA, POTAMOLEPIDAE) FROM THE MIDDLE  

E-Print Network (OSTI)

documented from European sites including the famous Messel oil shales (Mu¨ller et al., 1982; Richter

Wolfe, Alexander P.

297

$B_s \\to ?^+ ?^-$ and the upward-going muon flux from the WIMP annihilation in the sun or the earth  

E-Print Network (OSTI)

We consider the upward-going muon flux due to the WIMP annihilations in the cores of the sun and the earth, including the upper bound on the branching ratio for $B_s \\to \\mu^+ \\mu^-$ decay. We find that the constraint from $B_s \\to \\mu^+ \\mu^-$ is very strong in most parameter space, and exclude the supergravity parameter space regions where the expected upward-going muon fluxes are within the expected reach of AMANDA II.

Seungwon Baek; Yeong Gyun Kim; P. Ko

2005-06-13T23:59:59.000Z

298

Rare B Meson Decays at the Tevatron  

SciTech Connect

Rare B meson decays are an excellent probe for beyond the Standard Model physics. Two very sensitive processes are the b {yields} s{mu}{sup +}{mu}{sup -} and B{sub s,d}{sup 0} {yields} {mu}{sup +}{mu}{sup -} decays. We report recent results at a center of mass energy of {radical}s = 1.96 TeV from CDF II using 7 fb{sup -1} at the Fermilab Tevatron Collider.

Hopkins, Walter

2012-01-01T23:59:59.000Z

299

Renewables for the Power Rangan Banerjee  

E-Print Network (OSTI)

/Trigeneration Decentralised Distributed Generation Isolated Demand Side Management (Solar Water Heater, Passive Solar) #12 & SYSTEMS USEFUL ENERGY END USE ACTIVITIES (ENERGY SERVICES) COAL, OIL, SOLAR, GAS POWER PLANT, REFINERIES 95700 MU (21 %) COMMERCIAL 31400 MU (7 %) TRACTION 9500 MU (2 %) WATER WORKS , PUMPING & LIGHTING 14600

Banerjee, Rangan

300

Comments on the Tetrad (Vielbeins)  

E-Print Network (OSTI)

We want to correct the misunderstandings on the tetrad (or veilbeins in general) appeared in many text books or review articles. The tetrad should be defined without any condition. $e_{\\mu a}=\\partial_\\mu X_a$ with local Lorentz coordinates $X_a$ ia wrong in many sences: it gives the condition $\\partial_\\mu e_{\

Takeshi Fukuyama

2009-05-29T23:59:59.000Z

Note: This page contains sample records for the topic "mu mol mol-1" 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

Free Form of the Foldy-Wouthuysen Transformation in External Electromagnetic Fields  

E-Print Network (OSTI)

We derive the exact Foldy-Wouthuysen transformation for Dirac fermions in a time independent external electromagnetic field in the basis of the Ritus eigenfunctions, namely the eigenfunctions of the operator $(\\gamma \\cdot \\Pi)^2$, with $\\Pi^\\mu = p^\\mu - e A^\\mu$. In this basis, the transformation acquires a free form involving the dynamical quantum numbers induced by the field.

Gabriela Murguia; Alfredo Raya

2010-08-29T23:59:59.000Z

302

Cornering New Physics in b --> s Transitions  

SciTech Connect

We derive constraints on Wilson coefficients of dimension-six effective operators probing the b {yields} s transition, using recent improved measurements of the rare decays B{sub s} {yields} {mu}{sup +} {mu}{sup -}, B {yields} K{mu}{sup +} {mu}{sup -} and B {yields} K* {mu}{sup +} {mu}{sup -} and including all relevant observables in inclusive and exclusive decays. We consider operators present in the SM as well as their chirality-flipped counterparts and scalar operators. We find good agreement with the SM expectations. Compared to the situation before winter 2012, we find significantly more stringent constraints on the chirality-flipped coefficients due to complementary constraints from B {yields} K{mu}{sup +} {mu}{sup -} and B {yields} K* {mu}{sup +} {mu}{sup -} and due to the LHCb measurement of the angular observable S{sub 3} in the latter decay. We also list the full set of observables sensitive to new physics in the low recoil region of B {yields} K* {mu}{sup +} {mu}{sup -}.

Altmannshofer, Wolfgang; Straub, David M.

2012-06-01T23:59:59.000Z

303

Above- and below-ground methane fluxes and methanotrophic activity in a landfill-cover soil  

SciTech Connect

Highlights: Black-Right-Pointing-Pointer We quantify above- and below-ground CH{sub 4} fluxes in a landfill-cover soil. Black-Right-Pointing-Pointer We link methanotrophic activity to estimates of CH{sub 4} loading from the waste body. Black-Right-Pointing-Pointer Methane loading and emissions are highly variable in space and time. Black-Right-Pointing-Pointer Eddy covariance measurements yield largest estimates of CH{sub 4} emissions. Black-Right-Pointing-Pointer Potential methanotrophic activity is high at a location with substantial CH{sub 4} loading. - Abstract: Landfills are a major anthropogenic source of the greenhouse gas methane (CH{sub 4}). However, much of the CH{sub 4} produced during the anaerobic degradation of organic waste is consumed by methanotrophic microorganisms during passage through the landfill-cover soil. On a section of a closed landfill near Liestal, Switzerland, we performed experiments to compare CH{sub 4} fluxes obtained by different methods at or above the cover-soil surface with below-ground fluxes, and to link methanotrophic activity to estimates of CH{sub 4} ingress (loading) from the waste body at selected locations. Fluxes of CH{sub 4} into or out of the cover soil were quantified by eddy-covariance and static flux-chamber measurements. In addition, CH{sub 4} concentrations at the soil surface were monitored using a field-portable FID detector. Near-surface CH{sub 4} fluxes and CH{sub 4} loading were estimated from soil-gas concentration profiles in conjunction with radon measurements, and gas push-pull tests (GPPTs) were performed to quantify rates of microbial CH{sub 4} oxidation. Eddy-covariance measurements yielded by far the largest and probably most representative estimates of overall CH{sub 4} emissions from the test section (daily mean up to {approx}91,500 {mu}mol m{sup -2} d{sup -1}), whereas flux-chamber measurements and CH{sub 4} concentration profiles indicated that at the majority of locations the cover soil was a net sink for atmospheric CH{sub 4} (uptake up to -380 {mu}mol m{sup -2} d{sup -1}) during the experimental period. Methane concentration profiles also indicated strong variability in CH{sub 4} loading over short distances in the cover soil, while potential methanotrophic activity derived from GPPTs was high (v{sub max} {approx} 13 mmol L{sup -1}(soil air) h{sup -1}) at a location with substantial CH{sub 4} loading. Our results provide a basis to assess spatial and temporal variability of CH{sub 4} dynamics in the complex terrain of a landfill-cover soil.

Schroth, M.H., E-mail: martin.schroth@env.ethz.ch [Institute of Biogeochemistry and Pollutant Dynamics, ETH Zuerich, Universitaetstrasse 16, 8092 Zuerich (Switzerland); Eugster, W. [Institute of Agricultural Sciences, ETH Zuerich, Universitaetstrasse 2, 8092 Zuerich (Switzerland); Gomez, K.E. [Institute of Biogeochemistry and Pollutant Dynamics, ETH Zuerich, Universitaetstrasse 16, 8092 Zuerich (Switzerland); Gonzalez-Gil, G. [Laboratory for Environmental Biotechnology, EPF Lausanne, 1015 Lausanne (Switzerland); Niklaus, P.A. [Institute of Agricultural Sciences, ETH Zuerich, Universitaetstrasse 2, 8092 Zuerich (Switzerland); Oester, P. [Oester Messtechnik, Bahnhofstrasse 3, 3600 Thun (Switzerland)

2012-05-15T23:59:59.000Z

304

Low Grade Alumina Sources  

Science Conference Proceedings (OSTI)

Mar 7, 2013 ... Increasing amount of research institutes and industrial companies in the .... with an activation energy of 23.7kJ/mol and 18.0kJ/mol respectively;...

305

DNA tethering characterization, enzyme-mediated DNA looping under tension, and nucleosome stability in the force measuring optical tweezers  

E-Print Network (OSTI)

Kadonaga, J. T. (1997). ACF, an ISWI-containing and ATP-Core Histones, NAP-1, and ACF. J. Mol. Biol. 351: 89-99.core histones, NAP-1, and ACF. J. Mol. Biol. 351: 89-99.

Gemmen, Gregory John

2006-01-01T23:59:59.000Z

306

Improvement of La0.65Sr0.3MnO3-gamma-YSZ cathodes by infiltrating nanoSm0.6Sr0.4CoO3-gamma particles  

E-Print Network (OSTI)

solid oxide fuel cells (SOFC) use 8mol% yttria stabilizedthe degradation of SOFC components, and consequently extend

2004-01-01T23:59:59.000Z

307

Conformal Higgs model: Charged gauge fields can produce a 125GeV resonance  

E-Print Network (OSTI)

In the conformal Higgs model, the dynamical value of parameter $\\lambda$ in Lagrangian term $-\\lambda(\\Phi^\\dag\\Phi)^2$ depends on the mass of an intermediate neutral boson field that combines interacting scalars $W^+_\\mu W_-^\\mu$ and $Z^*_\\mu Z^\\mu$. If this mass is $125GeV$, $\\lambda$ is negative and of order $10^{-88}$, in agreement with the empirical value deduced from well-established cosmological and electroweak data. Hence this intermediate scalar boson field is a candidate to explain the recently observed LHC resonance. The conformal Higgs model considers coupled fields: metric tensor $g_{\\mu\

R. K. Nesbet

2013-03-28T23:59:59.000Z

308

CHEMICAL ENERGETICS The contents of this module were developed under grant award # P116B-001338 from the Fund for the Improve-  

E-Print Network (OSTI)

CHEMICAL ENERGETICS The contents of this module were developed under grant award # P116B-001338 STALEY ENERGY SCALE OF CHEMICAL REACTIONS ­6000 kJ mol­1 6000 kJ mol­10 kJ mol­1 #12;CHEMICAL ENERGETICS CONTENTS 2 Some Experiments 3 System And Surroundings 4 System

Hardy, Darel

309

5 DYNAMIC SIMULATION 5.1 DYNAMIC SIMULATION CASE  

E-Print Network (OSTI)

.64 12.27 12.00 Propane (mol%) 86.86 87.28 87.65 87.92 i-Butane (mol%) 0.07 0.07 0.07 0.07 n-Butane (mol

Hong, Deog Ki

310

Slepton Flavor Nonuniversality, the Muon EDM and its Proposed sensitive Search at Brookhaven  

E-Print Network (OSTI)

We analyze the electric dipole moment of the electron ($d_e$), of the neutron ($d_n$) and of the muon ($d_{\\mu}$) using the cancellation mechanism in the presence of nonuniversalities of the soft breaking parameters. It is shown that the nonuniversalities in the slepton sector produce a strong violation of the scaling relation $d_{\\mu}/d_e\\simeq m_{\\mu}/m_e$ in the cancellation region. An analysis of $d_e, d_n$ and $d_{\\mu}$ under the constraints of the current experimental limits on $d_e$ and $d_n$ and under the constraints of the recent Brookhaven result on $g_{\\mu}-2$ shows that in the non-scaling region $d_{\\mu}$ can be as large as ($10^{-24}-10^{-23}$)ecm and thus within reach of the recently proposed Brookhaven experiment for a sensitive search for $d_{\\mu}$ at the level of $10^{-24}$ ecm.

Tarek Ibrahim; Pran Nath

2001-05-03T23:59:59.000Z

311

Law of Conservation of Muons  

DOE R&D Accomplishments (OSTI)

A multiplicative selection rule for mu meson-electron transitions is proposed. A "muon parity" = -1 is considered for the muon and its neutrino, while the "muon parity" for all other particles is +1. The selection rule then states that (-1) exp(no. of initial (-1) parity particles) = (-1) exp(no. of final (-1) parity particles). Several reactions that are forbidden by an additive law but allowed by the multiplicative law are suggested; these reactions include mu{sup +} .> e{sup +} + nu{sub mu} + {ovr nu}{sub e}, e{sup -} + e{sup -} .> mu{sup -} + mu{sup -}, and muonium .> antimuonium (mu{sup +} + e{sup -} .> mu{sup -} + e{sup +}). An intermediate-boson hypothesis is suggested. (T.F.H.)

Feinberg, G.; Weinberg, S.

1961-02-00T23:59:59.000Z

312

New results for rare muon decays  

Science Conference Proceedings (OSTI)

Branching-ratio limits obtained with the Crystal Box detector are presented for the rare muon decays ..mu.. ..-->.. eee, ..mu.. ..-->.. e..gamma.., and ..mu.. ..-->.. e..gamma gamma... These decays, which violate the conservation of separate lepton-family numbers, are expected to occur in many extensions to the standard model. We found no candidates for the decay ..mu.. ..-->.. eee, yielding an upper limit for the branching ratio of B/sub ..mu..3e/ .. e..gamma.. candidates yields an upper limit of B/sub ..mu..e..gamma../ .. e..gamma gamma.. candidates gives an upper limit of B/sub ..mu..e..gamma gamma../ < 7.2 x 10/sup -11/. These results strengthen the constraints on models that allow transitions between lepton families.

Mischke, R.E.; Bolton, R.D.; Bowman, J.D.; Cooper, M.D.; Frank, J.S.; Hallin, A.L.; Heusi, P.A.; Hoffman, C.M.; Hogan, G.E.; Mariam, F.G.

1986-01-01T23:59:59.000Z

313

Carburization of austenitic alloys by gaseous impurities in helium  

SciTech Connect

The carburization behavior of Alloy 800H, Inconel Alloy 617 and Hastelloy Alloy X in helium containing various amounts of H/sub 2/, CO, CH/sub 4/, H/sub 2/O and CO/sub 2/ was studied. Corrosion tests were conducted in a temperature range from 649 to 1000/sup 0/C (1200 to 1832/sup 0/F) for exposure time up to 10,000 h. Four different helium environments, identified as A, B, C, and D, were investigated. Concentrations of gaseous impurities were 1500 ..mu..atm H/sub 2/, 450 ..mu..atm CO, 50 ..mu..atm CH/sub 4/ and 50 ..mu..atm H/sub 2/O for Environment A; 200 ..mu..atm H/sub 2/, 100 ..mu..atm CO, 20 ..mu..atm CH/sub 4/, 50 ..mu..atm H/sub 2/O and 5 ..mu..atm CO/sub 2/ for Environment B; 500 ..mu..atm H/sub 2/, 50 ..mu..atm CO, 50 ..mu..atm CH/sub 4/ and < 0.5 ..mu..atm H/sub 2/O for Environment C; and 500 ..mu..atm H/sub 2/, 50 ..mu..atm CO, 50 ..mu..atm CH/sub 4/ and 1.5 ..mu..atm H/sub 2/O for Environment D. Environments A and B were characteristic of high-oxygen potential, while C and D were characteristic of low-oxygen potential. The results showed that the carburization kinetics in low-oxygen potential environments (C and D) were significantly higher, approximately an order of magnitude higher at high temperatures, than those in high-oxygen potential environments (A and B) for all three alloys. Thermodynamic analyses indicated no significant differences in the thermodynamic carburization potential between low- and high-oxygen potential environments. It is thus believed that the enhanced carburization kinetics observed in the low-oxygen potential environments were related to kinetic effects. A qualitatively mechanistic model was proposed to explain the enhanced kinetics. The present results further suggest that controlling the oxygen potential of the service environment can be an effective means of reducing carburization of alloys.

Lai, G.Y.; Johnson, W.R.

1980-03-01T23:59:59.000Z

314

The $?$-deformed Segal-Bargmann transform is a Hall type transform  

E-Print Network (OSTI)

We present an explanation of how the $\\mu$-deformed Segal-Bargmann spaces, that are studied in various articles of the author in collaboration with Angulo, Echevarria and Pita, can be viewed as deserving their name, that is, how they should be considered as a part of Segal-Bargmann analysis. This explanation relates the $\\mu$-deformed Segal-Bargmann transforms to the generalized Segal-Bargmann transforms introduced by B. Hall using heat kernel analysis. All the versions of the $\\mu$-deformed Segal-Bargmann transform can be understood as Hall type transforms. In particular, we define a $\\mu$-deformation of Hall's "Version C" generalized Segal-Bargmann transform which is then shown to be a $\\mu$-deformed convolution with a $\\mu$-deformed heat kernel followed by analytic continuation. Our results are generalizations and analogues of the results of Hall.

Stephen Bruce Sontz

2007-07-30T23:59:59.000Z

315

High intensity production of high and medium charge state uraniumand other heavy ion beams with VENUS  

SciTech Connect

The next generation, superconducting ECR ion source VENUS(Versatile ECR ion source for NUclear Science) started operation with 28GHzmicrowave heating in 2004. Since then it has produced world recordion beam intensities. For example, 2850 e mu A of O6+, 200 e mu A of U33+or U34+, and in respect to high charge state ions, 1 e mu A of Ar18+, 270e mu A of Ar16+, 28 e mu A of Xe35+ and 4.9 e mu A of U47+ have beenproduced. A brief overview of the latest developments leading to theserecord intensities is given and the production of high intensity uraniumbeams is discussed in more detail.

Leitner, Daniela; Galloway, Michelle L.; Loew, Timothy J.; Lyneis, Claude M.; Rodriguez, Ingrid Castro; Todd, Damon S.

2007-11-15T23:59:59.000Z

316

Performance of zig-zag slab regenerative ring amplifier laser system  

Science Conference Proceedings (OSTI)

We report on a zig-zag slab laser system operated in a burst mode at 300W at 1.05 {mu}m and 100 W at 0.53 {mu}m. The laser was operated at pulse energies up to 20 Joules/pulse and 1GW peak power and repetition rates from 1 to 30 Hz. Output in continuous operation exceeded 50W at 1.05 {mu}m and doubling efficiency of >32%.

Hackel, L.A.

1989-12-13T23:59:59.000Z

317

Water nano-filtration device  

DOE Patents (OSTI)

A water filter includes a porous support characterized by a mean porosity in the range of 20 to 50% and a mean pore size of 2 to 5 .mu.m; and a carbon filter medium membrane disposed thereon which is characterized by a mean particle size of no more than 50 .mu.m and a mean pore size of no more than 7.2 .mu.m.

Judkins, Roddie R. (Knoxville, TN)

2009-02-03T23:59:59.000Z

318

AN L-90/7  

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

907 Environment. Safety ;31 .)d Health Department Environment, Safety and Health Department Environment. Safety and Health Department Environment. Safely and 1-Ipp ript);It I mu...

319

Electrode With Porous Three-Dimensional Support  

DOE Patents (OSTI)

Electrode including a paste containing particles of electrochemically active material and a conductive support consisting of a three-dimensional porous material comprising strands delimiting contiguous pores communicating via passages, characterized in that the average width L in .mu.m of said passages is related to the average diameter .O slashed. in .mu.m of said particles by the following equation, in which W and Y are dimensionless coefficients: wherein W=0.16 Y=1.69 X=202.4 .mu.m and Z=80 .mu.m

Bernard, Patrick (Massy, FR); Dauchier, Jean-Michel (Martignas, FR); Simonneau, Olivier (Dourdan, FR)

1999-07-27T23:59:59.000Z

320

Metal Matrix Composites  

Science Conference Proceedings (OSTI)

Feb 16, 2010 ... Compressive Properties of Closed-Cell Aluminum Foams Reinforced with Fly Ash Particles: Yong Liang Mu1; Guang Chun Yao1; Hong Jie...

Note: This page contains sample records for the topic "mu mol mol-1" 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

PDF  

E-Print Network (OSTI)

Dec 9, 2010 ... for some ? ? IRm on the line segment connecting u(x) and mu ...... large scale problems, which causes significant numerical overhead for the...

322

NMOS LSI 16*16 multiplier  

Science Conference Proceedings (OSTI)

A 1.5 MU NMOS 16*16 parallel multiplier designed for a throughput time of less than 40 ns is described. Preliminary measurements suggest a best-case throughput time of 16 ns. The pipelined architecture of the multiplier gives a throughput time of one clock cycle and a total multiply time of two clock cycles. The chip draws 1 w at 4 v, has 7500 transistors, and dimensions of 2800 mu*2500 mu. It was designed to accept and deliver ttl logic levels. This chip was fabricated in an advanced NMOS process with 1.5 mu design rules. X-ray lithography was used on all levels. 2 references.

Wittmer, N.C.; Michejda, J.A.; Gannett, J.W.; Bechtold, P.F.; Taylor, G.W.; Lifshitz, N.; Dennis, D.C.; Bayruns, R.J.

1983-01-01T23:59:59.000Z

323

Genome Biology 2004, 5:R82 commentreviewsreportsdepositedresearchrefereedresearchinteractionsinformation  

E-Print Network (OSTI)

Se- qer for RescueMu, MF, and HC are very similar (data not shown). Palmer et al. [42] evaluated the gene

Brendel, Volker

324

Universidad Simn Bolvar Direccin de Ingeniera de Informacin  

E-Print Network (OSTI)

Garay 07-40618 Anette Balbi Correa 07-40629 Joneisis I Barrientos Muñoz 07-40648 Victor Hugo Benites

Vásquez, Carlos

325

UH 51181695 OHSTPYHEPE95010  

E-Print Network (OSTI)

- port by DFG (MU 987/4-2) and the EU (PASCAL2). *anatole@alcf.anl.gov [1] Encyclopedia of Computational

326

Particle Data Group - 2009 Particle Listings  

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

for Axions (A0) and Other Very Light Bosons, Searches for Collapse Gauge and Higgs Boson table LEPTONS (e, mu, tau, neutrinos, heavy leptons ...) electron muon tau Heavy...

327

Particle Data Group - Particle Listings - 2007 update  

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

for Axions (A0) and Other Very Light Bosons, Searches for Collapse Gauge and Higgs Boson table LEPTONS (e, mu, tau, neutrinos, heavy leptons ...) electron muon tau Heavy...

328

Particle Data Group - 2011 Particle Listings  

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

for Axions (A0) and Other Very Light Bosons, Searches for Collapse Gauge and Higgs Boson table LEPTONS (e, mu, tau, neutrinos, heavy leptons ...) electron muon tau Heavy...

329

AND TIME STANDARDS  

Science Conference Proceedings (OSTI)

... mu- tual coupling between the units and to heater thermostat operations. ... resistance-bridge thermostats is planned for use in several new standard ...

2003-01-30T23:59:59.000Z

330

Submillimeter studies of cold gas and dust in the Magellanic Clouds .  

E-Print Network (OSTI)

??Presentamos datos a 870 mu obtenidos con el telescopio APEX en la SMC, LMC y puente Magallanico, obteniendo imagenes con 22 .4'' de resolucion para (more)

Verdugo Salgado, Celia Anahi

2012-01-01T23:59:59.000Z

331

Master of Social Work Program STUDENT HANDBOOK  

E-Print Network (OSTI)

Master of Social Work Program STUDENT HANDBOOK 2013-2014 Academic Year #12;TABLE OF CONTENTS SECTION I: MU-SU MSW PROGRAM ............................................................................................ 1 SOCIAL WORK EDUCATION

Hardy, Christopher R.

332

Beat-wave heating with density profile steepening  

SciTech Connect

Electron heating by the beat between 0.53 and 1.06 ..mu..m light in a self-consistently steepened density profile is examined.

Kruer, W.L.; Estabrook, K.

1986-10-01T23:59:59.000Z

333

On the eta(b) => J/psi J/psi decay  

E-Print Network (OSTI)

It has been argued long ago that eta(b) could be observed through the eta(b) => J/psi(=> mu+ mu-) J/psi(=> mu+ mu-) decay chain. Recent calculations indicate that the width of eta(b) into two J/psi is almost three order of magnitude smaller than the one into the D D*. We study the effects of final state interactions due to the D D* intermediate state on the J/psi J/psi final state. We find that the inclusion of this contribution may enhance the short distance branching ratio of about two orders of magnitude.

Santorelli, Pietro

2007-01-01T23:59:59.000Z

334

Measurements of Charged Current Lepton Universality and $|V_{us}|$ using Tau Lepton Decays to $e^- \\bar{\  

E-Print Network (OSTI)

Using 467 $fb^{-1}$ of $e^+e^-$ annihilation data collected with the BaBar detector, we measure $\\frac{{\\cal{B}}(\\tau^- \\to \\mu^- \\bar{\

Aubert, B

2009-01-01T23:59:59.000Z

335

Investigations and calculations toward increasing the efficiency of muon catalyzed fusion. Final report, May 1, 1989--November 30, 1989  

SciTech Connect

A brief summary of results during this report period is given. Some of the topics investigated includes: (1) calculations of sticking fractions and d-t fusion from dt{mu}(JV) states, (2) dd{mu} sticking fractions, (3) the reactivation coefficient in d-t fusion, (4) fusion rates for all XY{mu}(JV)(JV=0,1), (5) nuclear effects on energy shifts and fusion rates for (J=O) states of dt{mu}, (6) and some comments on cold fusion.

Monkhorst, H.J.

1989-11-01T23:59:59.000Z

336

Determining the Flavour Content of the Low-Energy Solar Neutrino Flux  

E-Print Network (OSTI)

We study the sensitivity of the HELLAZ and Borexino solar neutrino experiments on discriminating the neutrino species nu_e, anti-nu_e, nu_{mu,tau}, anti-nu_{mu,tau}, and nu_{sterile} using the difference in the recoil electron kinetic energy spectra in elastic neutrino-electron scattering. We find that one can observe a non-vanishing nu_{mu,tau} component in the solar neutrino flux, especially when the nu_e survival probability is low. Also, if the data turn out to be consistent with nu_e nu_{mu,tau} oscillations, an anti-nu_e component can be excluded effectively.

De Gouva, A; Gouvea, Andre de; Murayama, Hitoshi

2000-01-01T23:59:59.000Z

337

Introduction  

Science Conference Proceedings (OSTI)

Table 1   Base, supplementary, and derived SI units...steradian sr Magnetic flux density tesla T Molar energy joule per mole J/mol Molar entropy joule per mole kelvin J/mol · K Derived units Molar heat capacity joule per mole kelvin J/mol · K Absorbed does gray Gy Moment of force newton meter N · m Acceleration meter per second squared m/s 2 Permeability...

338

AN OBSERVATIONAL DETERMINATION OF THE PROTON TO ELECTRON MASS RATIO IN THE EARLY UNIVERSE  

Science Conference Proceedings (OSTI)

In an effort to resolve the discrepancy between two measurements of the fundamental constant mu, the proton to electron mass ratio, at early times in the universe we reanalyze the same data used in the earlier studies. Our analysis of the molecular hydrogen absorption lines in archival Very Large Telescope/Ultraviolet and Visible Echelle Spectrometer (UVES) spectra of the damped Lyman alpha systems in the quasi-stellar objects Q0347-383 and Q0405-443 yields a combined measurement of a DELTAmu/mu value of (-7 +- 8) x 10{sup -6}, consistent with no change in the value of mu over a time span of 11.5 Gyr. Here, we define DELTAmu as (mu {sub z} - mu{sub 0}) where mu {sub z} is the value of mu at a redshift of z and mu{sub 0} is the present-day value. Our null result is consistent with the recent measurements of King et al., DELTAmu/mu = (2.6 +- 3.0) x 10{sup -6}, and inconsistent with the positive detection of a change in mu by Reinhold et al. Both of the previous studies and this study are based on the same data but with differing analysis methods. Improvements in the wavelength calibration over the UVES pipeline calibration is a key element in both of the null results. This leads to the conclusion that the fundamental constant mu is unchanged to an accuracy of 10{sup -5} over the last 80% of the age of the universe, well into the matter dominated epoch. This limit provides constraints on models of dark energy that invoke rolling scalar fields and also limits the parameter space of supersymmetric or string theory models of physics. New instruments, both planned and under construction, will provide opportunities to greatly improve the accuracy of these measurements.

Thompson, Rodger I.; Bechtold, Jill; Eisenstein, Daniel; Fan, Xiaohui; Kennicutt, Robert C.; Shirley, Yancey L. [Steward Observatory, University of Arizona, Tucson, AZ 85721 (United States); Black, John H. [Onsala Space Observatory, Chalmers University of Technology, SE-43992 Onsala (Sweden); Martins, Carlos [Centro de AstrofIsica, Universidade do Porto, Rua das Estrelas, 4150-762 Porto (Portugal); Prochaska, J. Xavier, E-mail: rit@email.arizona.ed, E-mail: jbechtold@as.arizona.ed, E-mail: deisenstein@as.arizona.ed, E-mail: fan@as.arizona.ed, E-mail: yshirley@as.arizona.ed, E-mail: John.Black@chalmers.s, E-mail: robk@ast.cam.ac.u, E-mail: C.J.A.P.Martins@damtp.cam.ac.u, E-mail: xavier@ucolick.or [Lick Observatory and University of California Santa Cruz, Santa Cruz, CA 95064 (United States)

2009-10-01T23:59:59.000Z

339

Chloroplast DNA insertions into the nuclear genome of rice: the ...  

Science Conference Proceedings (OSTI)

Shahmuradov IA, Akbarova YY, Solovyev VV, Aliye JA (2003). Abundance of plastid DNA insertions in nuclear genomes of rice and Arabidopsis. Plant Mol Biol...

340

Li corrosion resistant glasses for headers in ambient temperature Li batteries  

DOE Patents (OSTI)

Glass compositions containing 10 to 50 mol% CaO, 10 to 50 mol% Al/sub 2/O/sub 3/, 30 to 60 mol% B/sub 2/O/sub 3/, and 0 to 30 mol% MgO are provided. These compositions are capable of forming a stable glass-to-metal seal possessing electrical insulating properties for use in a lithium battery. Also provided are lithium cells containing a stainless steel body and molybdenum center pin electrically insulated by means of a seal produced according to the invention.

Hellstrom, E.E.; Watkins, R.D.

1985-10-11T23:59:59.000Z

Note: This page contains sample records for the topic "mu mol mol-1" 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

NIST-JANAF Thermochemical Tables. I. Ten Organic ...  

Science Conference Proceedings (OSTI)

... J. Chem. 13, 10 1995. 7 BP van Eijck, J. van Opheusden, MMM van Schaik, and E. van Zoeren, J. Mol. Spectrosc. 86, 465 1981. ...

2012-07-18T23:59:59.000Z

342

Pysico-chemical properties of hydrophobic ionic liquids containing 1-octylpyridinium, 1-octyl-2-methylpyridinium or 1-octyl-4-methylpyridinium cations  

E-Print Network (OSTI)

organometallic catalysis. Chemical Reviews 2002, 102, 3667-catalysis. J. Mol. Cat. A: Chemical 2004, (12) Dai, S. ; Ju,synthesis and catalysis. Chemical Reviews 1999, 99, 2071-

Papaiconomou, Nicolas; Salminen, Justin; Lee, Jong-Min; Prausnitz, John M.

2006-01-01T23:59:59.000Z

343

Clostridium thermocellum ATCC27405 transcriptomic, metabolomic...  

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

11. Lynd LR, Weimer PJ, van Zyl WH, Pretorius IS: Microbial cellulose utilization: Fundamentals and biotechnology. Microbiol Mol Biol Rev 2002, 66:506. 577. 12. Rani KS,...

344

A Role for Id-1 in the Aggressive Phenotype and Steroid ...  

Desprez, P. Y., Hara E., Bissell, M. J., and Campisi, J. Suppression of mammary epithelial cell differentiation by the helix-loop-helix protein Id-1. Mol. Cell.

345

Whole-genome resequencing of Escherichia coli K-12 MG1655 undergoing short-term laboratory evolution in lactate minimal media reveals flexible selection of adaptive mutations  

E-Print Network (OSTI)

Feldblyum T: Bacterial genome sequencing. Methods Mol Biolstudy, we describe the genome sequencing of 11 endpoints ofand discussion Comparative genome sequencing Five parallel

2009-01-01T23:59:59.000Z

346

The genetic basis for adaptation of Escherichia coli to growth in minimal media  

E-Print Network (OSTI)

Comparative Genome Sequencing . . . . . . 3.3.2 Summary ofPalsson. Compara- tive genome sequencing of escherichia coliT. Feldblyum. Bacterial genome sequencing. Methods Mol Biol,

Conrad, Thomas

2010-01-01T23:59:59.000Z

347

New and Renewal NIST SRMs/RMs  

Science Conference Proceedings (OSTI)

... SRM 1666b Propane in Air (Nominal Amount-of-Substance Fraction 10 mol/mol) Lot # 84-K-XX SRM 1668b Propane ...

2012-09-04T23:59:59.000Z

348

Vrme-och strmningsteknik / Thermal and flow engineering Massverfring & separationsteknik /  

E-Print Network (OSTI)

/ Mass transfer and separation technology 424302 / 2011 Hemuppgift / Homework exercise H1+H2 17.3 24 hexan (C6H14) vid 25°C. Molbråket y för pentan i ångfas som är i jämvikt med vätskan är y = 0.01?(c+d+e) (mol/mol). Beräkna molbråken för pentan och hexan (mol/mol) i vätskan, och beräkna totala (ång

Zevenhoven, Ron

349

Enrico Lucon  

Science Conference Proceedings (OSTI)

... 1998-2010 SCK-CEN, Belgian Nuclear Research Centre, Mol (Belgium) Structural Materials Expertise Group Institute of Nuclear Material Science. ...

2012-10-01T23:59:59.000Z

350

proteinsSTRUCTURE O FUNCTION O BIOINFORMATICS Role of conformational sampling in computing  

E-Print Network (OSTI)

, Lunde BM, Eletr ZM, Isern NG, Roseman T, Lipfert J, Doniach S, Tompa M, Kuhlman B, et al. (2006) J Mol

Baker, David

351

Teor'ia de Grupos y Mec'anica Qu'antica Luis A. Seco  

E-Print Network (OSTI)

armonicos desacoplados. 7. El ' atomo de hidr'ogeno. 8. El helio y los otros 'atomos. 9. Mol'eculas. 10

Seco, Luis A.

352

Electrode Materials with the Na0.44MnO2 Structure: Effect of Titanium Substitution on Physical and Electrochemical Properties  

E-Print Network (OSTI)

by heating them in a molten salt mixture of 68 mol % LiNOion-exchanged in molten nitrate salts to yield materials

Saint, Juliette A.

2008-01-01T23:59:59.000Z

353

Extracellular Matrix, Nuclear and Chromatin Structure and Gene Expression in Normal Tissues and Malignant Tumors: A Work in Progress  

E-Print Network (OSTI)

and the regulation of chromatin organization and function.Imbalzano, A. N. (2006). Chromatin remodelling in mammaliandistinct patterns of local chromatin modification. Mol Cell

Spencer, Virginia A.; Xu, Ren; Bissell, Mina J.

2008-01-01T23:59:59.000Z

354

ELEVATED TEMPERATURE CORROSION BEHAVIOR OF IRON-BASE TERNARY ALLOYS THAT DEVELOP Cr2O3 AND/OR Al2O3 BARRIER SCALES  

E-Print Network (OSTI)

Resistant Alloy for Coal Gasification Service, LockheedI.M. , Table H Coal gasification atmosphere (mol fraction).development of "coal gasification" processes. large number

Nagarajan, V.

2011-01-01T23:59:59.000Z

355

Computational biology and high performance computing  

E-Print Network (OSTI)

Paper in Computational Biology The First Step Beyond theM . Glaeser, Mol. & Cell Biology, UCB and Life SciencesLBNL-44460 Computational Biology and High Performance

Shoichet, Brian

2011-01-01T23:59:59.000Z

356

Experimental biogeography: the role of environmental gradients in high geographic diversity in Cape Proteaceae  

E-Print Network (OSTI)

in a year (Calf et al. 2003; Hockey et al. 2005). ThisMol Ecol Notes 2:618620 Hockey P, Dean WRJ, Ryan PG (2005)

Latimer, Andrew M.; Silander, J. A.; Rebelo, A. G.; Midgley, G. F.

2009-01-01T23:59:59.000Z

357

Effects of Gaseous Impurities in Hydrogen on the Long Term Cycling ...  

Science Conference Proceedings (OSTI)

Symposium, Hydrogen Storage in Materials: Theory and Experiment ... the Gibbs energies of formation of Li3N (?Go=-100.16 kJ/mol)...

358

ORGANIC SPECIES IN GEOTHERMAL WATERS IN LIGHT OF FLUID INCLUSION...  

Open Energy Info (EERE)

> 0.001 mol % typically have ethane > ethylene, propane > propylene, and butane > butylene. There are three end member fluid compositions: type 1 fluids in which...

359

Comparative genomics of citric-acid producing Aspergillus niger ATCC 1015 versus enzyme-producing CBS 513.88  

E-Print Network (OSTI)

expression profiles. Mol. Genet. Genomics 279:Comparative genomics of citric-acid producing Aspergillus2006. Aspergillusnigergenomics:past,presentandinto

Grigoriev, Igor V.

2011-01-01T23:59:59.000Z

360

The Geometry of the Ribosomal Polypeptide Exit , M. Gerstein1  

E-Print Network (OSTI)

membranes. J Mol Biol 348, 445-57. 43. Adams, P. L., Stahley, M. R., Kosek, A. B., Wang, J. & Strobel, S. A

Gerstein, Mark

Note: This page contains sample records for the topic "mu mol mol-1" 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

Melatonin and the aging brain  

E-Print Network (OSTI)

mitochondrial decay of aging. Mol. Aspects Med. 26, Ames,the degenerative diseases of aging. Proc. Natl. Acad. Sci.2004. Retardation of brain aging by chronic treatment with

BONDY, S; SHARMAN, E

2007-01-01T23:59:59.000Z

362

New NIST SRMs/RMs  

Science Conference Proceedings (OSTI)

... mol/mol, and will primarily support power plants aiming to ... This is a list of our most recent ... SRM 2684b Bituminous Coal (Sulfur and Mercury) New ...

2011-02-23T23:59:59.000Z

363

Polynomial interior point algorithms for general LCPs  

E-Print Network (OSTI)

Apr 10, 2007... and Marianna Nagy acknowledge the Research Fellowship of MOL, the Hungarian Oil .... For further use we recall some well-known results.

364

An EP theorem for dual linear complementarity problems  

E-Print Network (OSTI)

... Marianna Nagy acknowledge the Research Fellowship of MOL, the Hungarian Oil .... (DLCP) are not only nonnegative, but they are complementary as well.

365

Production of hollow aerogel microspheres  

DOE Patents (OSTI)

A method is described for making hollow aerogel microspheres of 800-1200 .mu. diameter and 100-300 .mu. wall thickness by forming hollow alcogel microspheres during the sol/gel process in a catalytic atmosphere and capturing them on a foam surface containing catalyst. Supercritical drying of the formed hollow alcogel microspheres yields hollow aerogel microspheres which are suitable for ICF targets.

Upadhye, Ravindra S. (Pleasanton, CA); Henning, Sten A. (Dalby, SE)

1993-01-01T23:59:59.000Z

366

A Robust and Rapid Method of Producing Soluble, Stable, and Functional G-Protein Coupled Receptors  

E-Print Network (OSTI)

for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao, Shandong, People's Republic of China, 4 Systems Biophysics, Functional Nanosystems, Ludwig-Maximilians University Mu¨nchen, Mu and are the targets of ,50% of pharmaceutical drugs. A critical bottleneck in GPCR studies is the difficulty

Kersting, Roland

367

Chemical Equilibrium in Heavy Ion Collisions: Rapidity Dependence  

E-Print Network (OSTI)

Particle yields in heavy ion collisions show an overwhelming evidence for chemical or relative chemical equilibrium at all beam energies. The rapidity dependence of the thermal parameters $T$ and $\\mu_B$ can now be determined over a wide range of rapidities and show a systematic behavior towards an increase in $\\mu_B$ away from mid-rapidity.

F. Becattini; J. Cleymans

2007-01-04T23:59:59.000Z

368

Growth of hollow nickel fluoride whiskers  

SciTech Connect

Hollow nickel fluoride whiskers have been obtained by condensation from the vapor phase onto a platinum substrate in a flow of hydrogen fluoride. Crystals up to 5 mm in length have a square cross section with a 300 {+-} 30-{mu}m side. The wall thickness is 85 {+-} 20 {mu}m.

Petrov, S. V.; Orekhov, Yu. F. [Russian Academy of Sciences, Kapitsa Institute for Physical Problems (Russian Federation); Fedorov, P. P., E-mail: ppf@lst.gpi.ru [Russian Academy of Sciences, Prokhorov General Physics Institute (Russian Federation)

2009-07-15T23:59:59.000Z

369

Production of hollow aerogel microspheres  

DOE Patents (OSTI)

A method is described for making hollow aerogel microspheres of 800--1200{mu} diameter and 100--300{mu} wall thickness by forming hollow alcogel microspheres during the sol/gel process in a catalytic atmosphere and capturing them on a foam surface containing catalyst. Supercritical drying of the formed hollow alcogel microspheres yields hollow aerogel microspheres which are suitable for ICF targets.

Upadhye, R.S.; Henning, S.A.

1990-12-31T23:59:59.000Z

370

MID-IR FORCAST/SOFIA OBSERVATIONS OF M82  

SciTech Connect

We present 75'' Multiplication-Sign 75'' size maps of M82 at 6.4 {mu}m, 6.6 {mu}m, 7.7 {mu}m, 31.5 {mu}m, and 37.1 {mu}m with a resolution of {approx}4'' that we have obtained with the mid-IR camera FORCAST on SOFIA. We find strong emission from the inner 60'' ({approx}1 kpc) along the major axis, with the main peak 5'' west-southwest of the nucleus and a secondary peak 4'' east-northeast of the nucleus. The detailed morphology of the emission differs among the bands, which is likely due to different dust components dominating the continuum emission at short mid-IR wavelengths and long mid-IR wavelengths. We include Spitzer-IRS and Herschel/PACS 70 {mu}m data to fit spectral energy distribution templates at both emission peaks. The best-fitting templates have extinctions of A{sub V} = 18 and A{sub V} = 9 toward the main and secondary emission peak and we estimated a color temperature of 68 K at both peaks from the 31 {mu}m and 37 {mu}m measurement. At the emission peaks the estimated dust masses are on the order of 10{sup 4} M{sub Sun }.

Nikola, T.; Herter, T. L.; Adams, J. D.; Gull, G. E.; Henderson, C. P.; Schoenwald, J.; Stacey, G. [Department of Astronomy, Cornell University, Ithaca, NY 14853 (United States); Vacca, W. D.; De Buizer, J. M. [Universities Space Research Association, NASA Ames Research Center, MS 211-3, Moffett Field, CA 94035 (United States); Keller, L. D. [Department of Physics, Ithaca College, Ithaca, NY 14850 (United States); Morris, M. R. [Department of Physics and Astronomy, University of California, Los Angeles, CA 90095-1547 (United States); Tielens, A. [Leiden Observatory, P.O. Box 9513, Leiden, 2300 RA (Netherlands)

2012-04-20T23:59:59.000Z

371

New Physics Search in the LHCb Era  

SciTech Connect

The authors present theoretical and experimental preparations for an indirect search for new physics (NP) using the rare decay {bar B}{sub d} {yields} {bar K}*{sup 0}{mu}{sup +}{mu}{sup -}. They design new observables with very small theoretical uncertainties and good experimental resolution.

Hurth, Tobias; /CERN /SLAC; ,

2010-06-11T23:59:59.000Z

372

Method for promoting Michael addition reactions  

DOE Patents (OSTI)

Homogeneously dispersed solid reaction promoters having an average particle size from 0.01 .mu.m to 500 .mu.m are disclosed for preparing curable mixtures of at least one Michael donor and at least one Michael acceptor. The resulting curable mixtures are useful as coatings, adhesives, sealants and elastomers.

Shah, Pankaj V. (Crystal Lake, IL); Vietti, David E. (Cary, IL); Whitman, David William (Harleysville, PA)

2010-09-21T23:59:59.000Z

373

A search for z boson pair production at the Fermilab Tevatron Collider  

SciTech Connect

This dissertation describes a search for Z/{gamma}* boson pair production decaying into {mu}{mu}{mu}{mu}, {mu}{mu}ee, and eeee final states with approximately 1 fb{sup -1} of data at the Fermilab Tevatron Collider at {radical}s = 1.96 TeV. The small cross section times branching ratio for each channel mandated a thorough study of the acceptance and efficiencies. After optimization, 1.7 {+-} 0.1 events are expected for Standard Model production with a background of 0.13 {+-} 0.03 events. One event was found in the {mu}{mu}ee channel. A cross section limit of 4.4 pb is determined at a 95% confidence level for Standard Model production. Additionally, one parameter and two parameter 95% C.L. limits are found for the anomalous neutral trilinear gauge couplings ZZZ* and ZZ{gamma}*. The one parameter 95% C.L. coupling limits with a form factor scale of 1.2 TeV are: -0.28 < f{sub 40}{sup Z} < 0.28, -0.31 < f{sub 50}{sup Z} < 0.29, -0.26 < f{sub 40}{gamma} < 0.26, and -0.30 < f{sub 50}{sup {gamma}} < 0.28.

Jarvis, Chad Ryan; /Maryland U.

2007-10-01T23:59:59.000Z

374

Method of making an InAsSb/InAsSbP diode lasers  

DOE Patents (OSTI)

InAsSb/InAsSbP/InAs Double Heterostructures (DH) and Separate Confinement Heterostructure Multiple Quantum Well (SCH-MQW) structures are taught wherein the ability to tune to a specific wavelength within 3 .mu.m to 5 .mu.m is possible by varying the ratio of As:Sb in the active layer.

Razeghi, Manijeh (Wilmette, IL)

1997-01-01T23:59:59.000Z

375

Polarization Resolved Single Dot Spectroscopy of (211)B InAs Quantum Dots  

Science Conference Proceedings (OSTI)

We report on single dot spectroscopy of (211)B InAs quantum dots, grown by molecular beam epitaxy. The dots exhibit sharp emission lines, the origin of which has been identified. Polarization dependent microphotoluminescence spectra confirm fine structure splittings from 20{mu}eV down to the determination limit of our setup (10 {mu}eV).

Germanis, S.; Dialynas, G. E.; Deligeorgis, G.; Hatzopoulos, Z. [Physics Department, University of Crete, P.O. Box 2208, 71003 Heraklion, Crete (Greece); Savvidis, P. G.; Pelekanos, N. T. [Materials Science and Technology Department, University of Crete, P.O. Box 2208, 71003 Heraklion, Crete (Greece)

2011-12-23T23:59:59.000Z

376

Algorithms for Polynomial GCD Computation over Algebraic ... - CECM  

E-Print Network (OSTI)

Let L be an algebraic function field in k ? 0 parameters ...... beta := 1; while degree(r1,z)>0 do r0,r1 := r1,prem(r0,r1,z,'mu','pq'); t0,t1 := t1,expand(mu*t0-pq*t1 );.

377

Algorithms for Polynomial GCD Computation over Algebraic ... - CECM  

E-Print Network (OSTI)

Let L be an algebraic function field in 9 > 0 parameters ...... beta := 1; while degree(r1,z)?0 do r0,r1 := r1,prem(r0,r1,z,'mu','pq'); t0,t1 := t1,expand(mu*t0-pq*t1 );.

378

Rare B decays at CDF  

SciTech Connect

The confidence level limits of the CDF search for the B{sub s}{sup 0} and B{sub d}{sup 0} {yields} {mu}{sup +}{mu}{sup -} rare decays and the branching ratio measurement of B{sub s}{sup 0} {yields} D{sub s}{sup +} D{sub s}{sup -} are presented.

Farrington, Sinead M.; /Liverpool U.

2006-10-01T23:59:59.000Z

379

Recent Results on Muon Capture for a Neutrino Factory and Muon Collider  

SciTech Connect

Scenarios for capture, bunching and phase-energy rotation of {mu}'s from a proton source have been developed. The goal is capture of a maximal number of muons in a string of rf bunches with applications in neutrino factories and {mu}{sup +}-{mu}{sup -} colliders. In this note we begin with the bunching, phase rotation and cooling scenario used in neutrino factory study 2B and adapted by R. Palmer as the initial stage of a {mu}{sup +}-{mu}{sup -} collider scenario. However the scenario produces a relatively large number of bunches that must be recombined for maximal collider luminosity. In this paper we modify the scenario to obtain a smaller number of bunches, and, after some optimization, obtain cases that are better for both n-factory and collider scenarios. We describe these examples and consider some variations toward an optimal {nu}-factory + collider scenario.

Neuffer, David; /Fermilab

2008-01-01T23:59:59.000Z

380

Solderability of environmentally exposed Sn-plated surfaces  

Science Conference Proceedings (OSTI)

Solderability of Class II environmentally exposed Ni-Sn plated Cu substrates was evaluated with 60Sn-40Pb solder. Tin thickness were 10, 50, and 150 {mu}in. The 10 {mu}in. plating gave the smallest solder meniscus rise. A general decrease in contact angle, or increase in wettability, was observed with increasing Sn plating. The environmental exposures retarded the wetting rate and increased the time to maximum wetting, particularly with only 10 {mu}in. of Sn. Although the solderability of the 50 and 150 {mu}in. surfaces were not significantly affected by the test conditions, an intermediate plating thickness of 100 {mu}in. is preferred for processing flexibility. 13 refs., 6 figs., 1 tab.

Hosking, F.M.; Sorensen, N.R.

1990-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "mu mol mol-1" 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

Solderability and environmental testing of Sn-plated surfaces  

Science Conference Proceedings (OSTI)

The effect of atmospheric corrosion on the solderability of Sn plated surfaces was evaluated with 60Sn-40Pb solder. Tin thicknesses of 10, 50, and 150 {mu}in on Ni plated Cu were studied. The 10 {mu}in. plating gave the smallest solder meniscus rise. A general decrease in contact angle, or increase in wettability, was observed with increasing Sn plating. The environmental exposures retarded the wetting rate and increased the time to maximum wetting, particularly with only 10 {mu}in. of Sn. Although the solderability of the 50 and 150 {mu}in. surfaces wee not significantly affected by the test conditions, an intermediate plating thickness of 100 {mu}in. is preferred for processing flexibility. 13 refs., 7 figs., 1 tab.

Sorensen, N.R.; Hosking, F.M.

1990-01-01T23:59:59.000Z

382

A search for muon neutrino and antineutrino disappearance in the Booster Neutrino Beam  

SciTech Connect

This dissertation presents a search for {mu}{sub {nu}} and {bar {mu}{sub {nu}}} disappearance with the MiniBooNE experiment in the {Delta}m{sup 2} region of a few eV{sup 2}. Disappearance measurements in this oscillation region constrain sterile neutrino models and CPT violation in the lepton sector. Fits to the shape of the {mu}{sub {nu}} and {bar {mu}{sub {nu}}} energy spectra reveal no evidence for disappearance in either mode. This is the first test of {bar {mu}{sub {nu}}} disappearance between {Delta}m{sup 2} = 0:1 -- 10 eV2. In addition, prospects for performing a joint analysis using the SciBooNE detector in conjunction with MiniBooNE are discussed.

Mahn, Kendall Brianna McConnel; /Columbia U.

2009-04-01T23:59:59.000Z

383

Lepton Universality Test in Upsilon(1S) Decays at BaBar  

SciTech Connect

Using a sample of 122 million {Upsilon}(3S) decays collected with the BABAR detector at the PEP-II asymmetric energy collider at the SLAC National Accelerator Laboratory, we measure the ratio R{sub {tau}{mu}} = BR({Upsilon}(1S) {yields} {tau}{sup +}{tau}{sup -})/BR({Upsilon}(1S) {yields} {mu}{sup +}{mu}{sup -}); the measurement is intended as a test of lepton universality and as a possible search for a light pseudoscalar Higgs boson in Next to Minimal Supersymmetric Standard Model (NMSSM) scenarios. Such a boson could appear in a deviation of the ratio R{sub {tau}{mu}} from the Standard Model expectation, that is 1, except for small lepton mass corrections. The analysis exploits the decays {Upsilon}(3S) {yields} {Upsilon}(1S){pi}{sup +}{pi}{sup -}, {Upsilon}(1S) {yields} l{sup +}l{sup -}, where l = {mu},{tau}.

Guido, Elisa; /Genoa U. /INFN, Genoa

2012-04-10T23:59:59.000Z

384

American Mineralogist, Volume 89, pages 15331539, 2004 0003-004X/04/00101533$05.00 1533  

E-Print Network (OSTI)

escape peaks complicate collection of both U and Pb peak and background counts. Due to the larger energy for Pb peak and background collection. #12;CHERNIAK ET AL.: SYNTHESIS AND USAGE OF PB-FREE REE PHOSPHATES mol% Ce, and 20 mol% Nd. This molar ratio approximates a La-Ce-Nd ratio typical of metamorphic

Spear, Frank S.

385

CARBON DIOXIDE HYDRATES CRYSTALLISATION IN EMULSION Aurlie Galfr, Amara Fezoua, Yamina Ouabbas, Ana Cameirao, Jean Michel Herri  

E-Print Network (OSTI)

energy, like in power generation plant. One possible way to reduce these emissions is to install. As the flue gases are at low concentration in CO2 (typically 5%-15 % in power plant) and at high flow rates ] r5hours Growth rate in five hours [mol.h-1 ] rmoy Average growth rate [mol.h-1 ] t Time [h] tind

Paris-Sud XI, Université de

386

Silicon nitride ceramic having high fatigue life and high toughness  

DOE Patents (OSTI)

A sintered silicon nitride ceramic comprising between about 0.6 mol % and about 3.2 mol % rare earth as rare earth oxide, and between about 85 w/o and about 95 w/o beta silicon nitride grains, wherein at least about 20% of the beta silicon nitride grains have a thickness of greater than about 1 micron.

Yeckley, Russell L. (Oakham, MA)

1996-01-01T23:59:59.000Z

387

FOCUS: NOVEL APPROACHES TO PEPTIDE AND PROTEIN STRUCTURE Evaluation of Ion Mobility Spectroscopy  

E-Print Network (OSTI)

over a small (e.g., 3 kcal/mol) range obscures any weak trend with energy as is the case in this study, 10271­10279. 56. Price, W. D.; Jockusch, R. A.; Williams, E. R. Binding Energies of Protonated Betaine span an 8-kcal/mol range. These cross sections are compared with those determined from candidate low-energy

Clemmer, David E.

388

Artificial Cellulosomes and Arsenic Cleanup: From Single Cell Programming to Synthetic Yeast Consortium  

E-Print Network (OSTI)

concentrations. BY4742 AtPCS PCs PCs (?mol/g DCW) As (?mol/g DCW) Time (hr) Figure 5.3. PC production andBY4742 expressing AtPCS. DCW = dry cell weight. As (umol/g

Tsai, Shen-Long

2011-01-01T23:59:59.000Z

389

Feature Detection, Characterization and Confirmation Methodology: Final Report  

E-Print Network (OSTI)

A.L. ; Hevesi, J.A. ; and Flint, L.E. 1996, pp. 60 to 63.ACC: MOL.19970409.0087. Flint, L.E. 1998. CharacterizationSurvey. ACC: MOL.19980429.0512. Flint, A.L. , Flint, L.E. ,

Karasaki, Kenzi

2009-01-01T23:59:59.000Z

390

Fischer-Tropsch Database Calculations Conversions: CO, H2, and Syngas  

E-Print Network (OSTI)

Fischer-Tropsch Database Calculations Conversions: CO, H2, and Syngas f in out in n n n = - 100 n contraction (%) #12;Syngas ratio (H2:CO): sr H in CO in n n = 2 _ _ n: (mols per hour) sr: Syngas ratio Rates active metal (g) r: Rate (mols / hr / g metal) #12;Rate Syngas: syngas H COr r r= +2 r syngas: Syngas

Kentucky, University of

391

Dynamics of Y H2CO reactions Hans U. Stauffer, Ryan Z. Hinrichs, Jonathan J. Schroden, and H. Floyd Davisa)  

E-Print Network (OSTI)

energy (Ecoll). The potential energy barrier for C­H insertion is found to lie below 12 kcal in the previous studies. For ex- ample, the C­H bond dissociation energy in formaldehyde is 89 kcal/mol, substantially smaller than that in saturated hy- drocarbons like ethane 105 kcal/mol or unsaturated hydro

Davis, H. Floyd

392

Spatial resolution of a ?PIC-based neutron imaging detector  

E-Print Network (OSTI)

We present a detailed study of the spatial resolution of our time-resolved neutron imaging detector utilizing a new neutron position reconstruction method that improves both spatial resolution and event reconstruction efficiency. Our prototype detector system, employing a micro-pattern gaseous detector known as the micro-pixel chamber ({\\mu}PIC) coupled with a field-programmable-gate-array-based data acquisition system, combines 100{\\mu}m-level spatial and sub-{\\mu}s time resolutions with excellent gamma rejection and high data rates, making it well suited for applications in neutron radiography at high-intensity, pulsed neutron sources. From data taken at the Materials and Life Science Experimental Facility within the Japan Proton Accelerator Research Complex (J-PARC), the spatial resolution was found to be approximately Gaussian with a sigma of 103.48 +/- 0.77 {\\mu}m (after correcting for beam divergence). This is a significant improvement over that achievable with our previous reconstruction method (334 +/- 13 {\\mu}m), and compares well with conventional neutron imaging detectors and with other high-rate detectors currently under development. Further, a detector simulation indicates that a spatial resolution of less than 60 {\\mu}m may be possible with optimization of the gas characteristics and {\\mu}PIC structure. We also present an example of imaging combined with neutron resonance absorption spectroscopy.

Joseph D. Parker; Masahide Harada; Kaori Hattori; Satoru Iwaki; Shigeto Kabuki; Yuji Kishimoto; Hidetoshi Kubo; Shunsuke Kurosawa; Yoshihiro Matsuoka; Kentaro Miuchi; Tetsuya Mizumoto; Hironobu Nishimura; Takayuki Oku; Tatsuya Sawano; Takenao Shinohara; Jun-ichi Suzuki; Atsushi Takada; Toru Tanimori; Kazuki Ueno

2013-05-16T23:59:59.000Z

393

Strong Shock Waves and Nonequilibrium Response in a One-dimensional Gas: a Boltzmann Equation Approach  

E-Print Network (OSTI)

We investigate the nonequilibrium behavior of a one-dimensional binary fluid on the basis of Boltzmann equation, using an infinitely strong shock wave as probe. Density, velocity and temperature profiles are obtained as a function of the mixture mass ratio \\mu. We show that temperature overshoots near the shock layer, and that heavy particles are denser, slower and cooler than light particles in the strong nonequilibrium region around the shock. The shock width w(\\mu), which characterizes the size of this region, decreases as w(\\mu) ~ \\mu^{1/3} for \\mu-->0. In this limit, two very different length scales control the fluid structure, with heavy particles equilibrating much faster than light ones. Hydrodynamic fields relax exponentially toward equilibrium, \\phi(x) ~ exp[-x/\\lambda]. The scale separation is also apparent here, with two typical scales, \\lambda_1 and \\lambda_2, such that \\lambda_1 ~ \\mu^{1/2} as \\mu-->0$, while \\lambda_2, which is the slow scale controlling the fluid's asymptotic relaxation, increases to a constant value in this limit. These results are discussed at the light of recent numerical studies on the nonequilibrium behavior of similar 1d binary fluids.

Pablo I. Hurtado

2005-05-02T23:59:59.000Z

394

Nonlinear fibre-optic devices pumped by semiconductor disk lasers  

Science Conference Proceedings (OSTI)

Semiconductor disk lasers offer a unique combination of characteristics that are particularly attractive for pumping Raman lasers and amplifiers. The advantages of disk lasers include a low relative noise intensity (-150 dB Hz{sup -1}), scalable (on the order of several watts) output power, and nearly diffraction-limited beam quality resulting in a high ({approx}70 % - 90 %) coupling efficiency into a single-mode fibre. Using this technology, low-noise fibre Raman amplifiers operating at 1.3 {mu}m in co-propagation configuration are developed. A hybrid Raman-bismuth doped fibre amplifier is proposed to further increase the pump conversion efficiency. The possibility of fabricating mode-locked picosecond fibre lasers operating under both normal and anomalous dispersion is shown experimentally. We demonstrate the operation of 1.38-{mu}m and 1.6-{mu}m passively mode-locked Raman fibre lasers pumped by 1.29-{mu}m and 1.48-{mu}m semiconductor disk lasers and producing 1.97- and 2.7-ps pulses, respectively. Using a picosecond semiconductor disk laser amplified with an ytterbium-erbium fibre amplifier, the supercontinuum generation spanning from 1.35 {mu}m to 2 {mu}m is achieved with an average power of 3.5 W. (invited paper)

Chamorovskiy, A Yu; Okhotnikov, Oleg G [Optoelectronics Research Center, Tampere University of Technology, Tampere (Finland)

2012-11-30T23:59:59.000Z

395

Dimuon production from in-medium rho decays from QCD sum rules  

E-Print Network (OSTI)

We compute the dimuon-excess invariant mass distribution at the rho-meson peak in the context of relativistic heavy-ion collisions at SPS energies. The temperature, T, and chemical potential, mu, dependent parameters describing the rho-meson --its width, mass and leptonic decay constant-- are determined from finite energy QCD sum rules. Results show that the rho-meson width increases whereas its mass and leptonic decay constant decrease near the (chemical potential-dependent) critical temperature T_c(mu) for chiral symmetry restoration/quark-gluon deconfinement. As a consequence, starting from T_c(mu), for a short lived cooling the main effect is a broadening of the dimuon distribution. However, when the evolution brings the system to a lower freeze-out temperature, with the rho-meson parameters approaching their vacuum values, the dimuon distribution shows a broad peak centered at the vacuum rho-meson mass. For even lower freeze-out temperatures the peak becomes less prominent since the thermal phase space factor suppresses the distribution for larger values of the invariant dimuon mass, given that the average temperature is smaller. The dimuon distribution exhibits a non-trivial behavior with mu. For small mu values the distribution broadens with increasing mu becoming a bit steeper at low invariant masses for larger values of mu. Our results are in very good agreement with data from the NA60 Collaboration.

Alejandro Ayala; C. A. Dominguez; Luis Alberto Hernandez; M. Loewe; Ana Julia Mizher

2013-09-16T23:59:59.000Z

396

A measurement of the magnetic dipole moment of the. delta. /sup + +/(1232) from the bremsstrahlung process. pi. p. -->. pi. p. gamma  

SciTech Connect

We have measured the cross section from the bremsstrahlung process ..pi../sup +/p ..-->.. ..pi../sup +/p..gamma.. for incident pions of energy 299 MeV. We detected the out going pion in the angular range from 55 to 95/sup 0/ in the lab, and photons were detected near 240/sup 0/ in the lab. We compare this measured cross-section to the MIT theory in order to extract a measurement of the magnetic dipole moment of the ..delta../sup + +/(1232), ..mu../sub ..delta../. In order to compare our results with the MIT theory, we have folded the MIT theory into the acceptance of our apparatus. We find that for pion angles between 55 and 75/sup 0/ the theory gives us a dipole moment of: 2.3..mu../sub p/ < ..mu../sub ..delta../ < 3.3..mu../sup p/ where the quoted error arises from an experimental uncertainty of +-0.25..mu../sub p/ and from theoretical uncertainties of +-0.25 ..mu../sub p/. However, for pion angles between 75 and 95/sup 0/ we find that the MIT theory predicts a cross-section which is larger than our measured cross-section, and makes it difficult to extract a value of ..mu../sub ..delta../. This over prediction is not understood, but consistent with a similar effect when the MIT theory is fit to previous data. 78 figs., 29 tabs.

Meyer, C.A.

1987-06-01T23:59:59.000Z

397

Spectroscopic Analyses of the Biofuels-Critical Phytochemical Coniferyl Alcohol and Its Enzyme-Catalyzed Oxidation Products  

SciTech Connect

Lignin composition (monolignol types of coniferyl, sinapyl or p-coumaryl alcohol) is causally related to biomass recalcitrance. We describe multiwavelength (220, 228, 240, 250, 260, 290, 295, 300, 310 or 320 nm) absorption spectroscopy of coniferyl alcohol and its laccase- or peroxidase-catalyzed products during real time kinetic, pseudo-kinetic and endpoint analyses, in optical turn on or turn off modes, under acidic or basic conditions. Reactions in microwell plates and 100 mu L volumes demonstrated assay miniaturization and high throughput screening capabilities. Bathochromic and hypsochromic shifts along with hyperchromicity or hypochromicity accompanied enzymatic oxidations by laccase or peroxidase. The limits of detection and quantitation of coniferyl alcohol averaged 2.4 and 7.1 mu M respectively, with linear trend lines over 3 to 4 orders of magnitude. Coniferyl alcohol oxidation was evident within 10 minutes or with 0.01 mu g/mL laccase and 2 minutes or 0.001 mu g/mL peroxidase. Detection limit improved to 1.0 mu M coniferyl alcohol with Km of 978.7 +/- 150.7 mu M when examined at 260 nm following 30 minutes oxidation with 1.0 mu g/mL laccase. Our assays utilized the intrinsic spectroscopic properties of coniferyl alcohol or its oxidation products for enabling detection, without requiring chemical synthesis or modification of the substrate or product(s). These studies facilitate lignin compositional analyses and augment pretreatment strategies for reducing biomass recalcitrance.

Achyuthan, Komandoor; Adams, Paul; Simmons, Blake; Singh, Anup

2011-07-13T23:59:59.000Z

398

Solid hydrogen pellet injection into the ORMAK Tokamak  

DOE Green Energy (OSTI)

Solid hydrogen spheres were injected into the ORMAK tokamak as a test of pellet refueling for tokamak fusion reactors. Pellets 70 ..mu..m and 210 ..mu..m in diameter were injected with speeds of 91 m/sec and 100 m/sec, respectively. Each of the 210-..mu..m pellets added about 1% to the number of particles contained in the plasma. Excited neutrals, ablated from these hydrogen spheres, emitted light which was monitored either by a photomultiplier or by a high speed framing camera. From these light signals it was possible to measure pellet lifetimes, ablation rates, and the spatial distribution of hydrogen atoms in the ablation clouds. The average measured lifetime of the 70-..mu..m pellets was 422 ..mu..sec, and the 210-..mu..m spheres lasted 880 ..mu..sec under bombardment by the plasma. These lifetimes and measured ablation rates are in good agreement with a theoretical model which takes into account shielding of plasma electrons by hydrogen atoms ablated from spherical hydrogen ice.

Foster, C. A.; Colchin, R. J.; Milora, S. L.; Kim, K.; Turnbull, R. J.

1977-06-01T23:59:59.000Z

399

MaxEnt-Burg Application to Muon-Spin Resonance  

SciTech Connect

Muon-Spin Rotation ({mu}SR) is an experimental technique similar to Nuclear Magnetic Resonance (NMR). {mu}SR data are recorded as a set of time-series histograms of muon-decay events. Both {mu}SR and NMR regularly produce signals that are overlapping, weak and/or broadened in frequency space. These {mu}SR histograms are usually analyzed by curve fitting and Fourier transformations. However, several NMR and {mu}SR groups have developed Maximum Entropy (MaxEnt, ME) applications to improve the sensitivity of the time series analysis. We have focused on the application of the ME-Burg algorithm. The optimal number of autoregression coefficients is between N/3 and N/5 where N is the total number of data points. Selected results for simulated data and real data ME-{mu}SR applications are reported. Most of our {mu}SR work is for cuprate superconductor studies. The strength of the ME-Burg algorithm is fully used, as there is a clear relationship between the muon-spin signal S(i) at any time i and the signals S(i-k) at earlier times. ME-Burg has the major advantage of producing in the frequency transform only structure for which sufficient statistical evidence is present.

Boekema, C.; Browne, M. C. [Department of Physics and Astronomy, San Jose State University, San Jose CA 95192-0106 (United States)

2008-11-06T23:59:59.000Z

400

The UVES Large Program for Testing Fundamental Physics II: Constraints on a Change in ? Towards Quasar HE 0027-1836  

E-Print Network (OSTI)

We present an accurate analysis of the H2 absorption lines from the zabs ~ 2.4018 damped Ly{\\alpha} system towards HE 0027-1836 observed with the Very Large Telescope Ultraviolet and Visual Echelle Spectrograph (VLT/UVES) as a part of the European Southern Observatory Large Programme "The UVES large programme for testing fundamental physics" to constrain the variation of proton-to-electron mass ratio, {\\mu} = mp/me. We perform cross-correlation analysis between 19 individual exposures taken over three years and the combined spectrum to check the wavelength calibration stability. We notice the presence of a possible wavelength dependent velocity drift especially in the data taken in 2012. We use available asteroids spectra taken with UVES close to our observations to confirm and quantify this effect. We consider single and two component Voigt profiles to model the observed H2 absorption profiles. We use both linear regression analysis and Voigt profile fitting where {\\Delta}{\\mu}/{\\mu} is explicitly considered as an additional fitting parameter. The two component model is marginally favored by the statistical indicators and we get {\\Delta}{\\mu}/{\\mu} = (-2.5 +/- 8.1(stat) +/- 6.2(sys)) ppm. When we apply the correction to the wavelength dependent velocity drift we find {\\Delta}{\\mu}/{\\mu} = (-7.6 +/- 8.1(stat) +/- 6.3(sys)) ppm. It will be important to check the extent to which the velocity drift we notice in this study is present in UVES data used for previous {\\Delta}{\\mu}/{\\mu} measurements.

H. Rahmani; M. Wendt; R. Srianand; P. Noterdaeme; P. Petitjean; P. Molaro; J. B. Whitmore; M. T. Murphy; M. Centurion; H. Fathivavsari; S. D'Odorico; T. M. Evans; S. A. Levshakov; S. Lopez; C. J. A. P. Martins; D. Reimers; G. Vladilo

2013-07-22T23:59:59.000Z

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401

SPITZER AND HERSCHEL MULTIWAVELENGTH CHARACTERIZATION OF THE DUST CONTENT OF EVOLVED H II REGIONS  

SciTech Connect

We have analyzed a uniform sample of 16 evolved H II regions located in a 2 Degree-Sign Multiplication-Sign 2 Degree-Sign Galactic field centered at (l,b) = (30 Degree-Sign , 0 Degree-Sign ) and observed as part of the Herschel Hi-GAL survey. The evolutionary stage of these H II regions was established using ancillary radio-continuum data. By combining Hi-GAL PACS (70 {mu}m, 160 {mu}m) and SPIRE (250 {mu}m, 350 {mu}m, and 500 {mu}m) measurements with MIPSGAL 24 {mu}m data, we built spectral energy distributions of the sources and showed that a two-component gray-body model is a good representation of the data. In particular, wavelengths >70 {mu}m appear to trace a cold dust component, for which we estimated an equilibrium temperature of the big grains (BGs) in the range 20-30 K, while for {lambda} < 70 {mu}m, the data indicate the presence of a warm dust component at temperatures of the order of 50-90 K. This analysis also revealed that dust is present in the interior of H II regions, although likely not in a large amount. In addition, the data seem to corroborate the hypothesis that the main mechanism responsible for the (partial) depletion of dust in H II regions is radiation-pressure-driven drift. In this framework, we speculated that the 24 {mu}m emission that spatially correlates with ionized gas might be associated with either very small grain or BG replenishment, as recently proposed for the case of wind-blown bubbles. Finally, we found that evolved H II regions are characterized by distinctive far-IR and submillimeter colors, which can be used as diagnostics for their identification in unresolved Galactic and extragalactic regions.

Paladini, R. [NASA Herschel Science Center, California Institute of Technology, 1200, East California Boulevard, Pasadena, CA 91125 (United States); Umana, G. [INAF-Osservatorio Astrofisico di Catania, Via S. Sofia 78, I-95123 Catania (Italy); Veneziani, M.; Noriega-Crespo, A. [Infrared Processing and Analysis Center, California Institute of Technology, 1200, East California Boulevard, Pasadena, CA 91125 (United States); Anderson, L. D. [Department of Physics, West Virginia University, Morgantown, WV 26506 (United States); Piacentini, F. [Dipartimento di Fisica, Universita di Roma La Sapienza, I-00185 Roma (Italy); Pinheiro Goncalves, D. [Department of Astronomy and Astrophysics, University of Toronto 50 George Street, Toronto, ON M5S 3H4 (Canada); Paradis, D.; Bernard, J.-P. [Centre d'Etude Spatiale des Rayonnements, 9 Avenue du Colonel Roche, F-31028 Toulouse Cedex 4 (France); Tibbs, C. T. [Spitzer Science Center, California Institute of Technology, 1200, East California Boulevard, Pasadena, CA 91125 (United States); Natoli, P., E-mail: paladini@ipac.caltech.edu [Istituto Nazionale di Fisica Nucleare, Sezione Ferrara, I-44100 Ferrara (Italy)

2012-12-01T23:59:59.000Z

402

Carbon microtubes  

DOE Patents (OSTI)

A carbon microtube comprising a hollow, substantially tubular structure having a porous wall, wherein the microtube has a diameter of from about 10 .mu.m to about 150 .mu.m, and a density of less than 20 mg/cm.sup.3. Also described is a carbon microtube, having a diameter of at least 10 .mu.m and comprising a hollow, substantially tubular structure having a porous wall, wherein the porous wall comprises a plurality of voids, said voids substantially parallel to the length of the microtube, and defined by an inner surface, an outer surface, and a shared surface separating two adjacent voids.

Peng, Huisheng (Shanghai, CN); Zhu, Yuntian Theodore (Cary, NC); Peterson, Dean E. (Los Alamos, NM); Jia, Quanxi (Los Alamos, NM)

2011-06-14T23:59:59.000Z

403

Flexible, durable proton energy degraders for the GE PETtrace  

Science Conference Proceedings (OSTI)

In order to limit the formation of radioisotopic impurities during proton bombardments of solid targets, two methods of introducing degrader foils into the beam upstream of the target were tested. The first design uses a 445 {mu}m thick fixed degrader machined from a single piece of aluminum. The second design permits introduction of foils made of any material and was tested with foils as thick as 635 {mu}m (also aluminium). In both cases, the foils are cooled with by water flowing through an annular channel outside the radius of the beam. Both designs proved durable and tolerated proton beam currents in excess of 80 {mu}A.

Engle, J. W.; Gagnon, K.; Severin, G. W.; Valdovinos, H. F.; Nickles, R. J.; Barnhart, T. E. [Chemistry Division - Isotopes, Inorganics and Actinides, Los Alamos National Laboratory, Los Alamos, NM (United States); Department of Radiation Oncology, University of Washington, Seattle, WA (United States); Hevesy Laboratory, Danish Technical University, Risoe (Denmark); Department of Medical Physics, University of Wisconsin, WI, Madison (United States)

2012-12-19T23:59:59.000Z

404

Neutrino telescopes as a probe of active and sterile neutrino mixings  

E-Print Network (OSTI)

If the ultrahigh-energy (UHE) neutrino fluxes produced from a distant astrophysical source can be measured at a km^3-size neutrino telescope, they will provide a promising way to help determine the flavor mixing pattern of three active neutrinos. Considering the conventional UHE neutrino source with the flavor ratio \\phi_e : \\phi_\\mu : \\phi_\\tau = 1 : 2 : 0, I show that \\phi^D_e : \\phi^D_\\mu : \\phi^D_\\tau = (1 -2 \\Delta) : (1 +\\Delta) : (1 +\\Delta) holds at the detector of a neutrino telescope, where \\Delta characterizes the effect of \\mu-\\tau symmetry breaking (i.e., \\theta_13 \

Xing, Zhi-zhong

2007-01-01T23:59:59.000Z

405

Neutrino telescopes as a probe of active and sterile neutrino mixings  

E-Print Network (OSTI)

If the ultrahigh-energy (UHE) neutrino fluxes produced from a distant astrophysical source can be measured at a km^3-size neutrino telescope, they will provide a promising way to help determine the flavor mixing pattern of three active neutrinos. Considering the conventional UHE neutrino source with the flavor ratio \\phi_e : \\phi_\\mu : \\phi_\\tau = 1 : 2 : 0, I show that \\phi^D_e : \\phi^D_\\mu : \\phi^D_\\tau = (1 -2 \\Delta) : (1 +\\Delta) : (1 +\\Delta) holds at the detector of a neutrino telescope, where \\Delta characterizes the effect of \\mu-\\tau symmetry breaking (i.e., \\theta_13 \

Zhi-zhong Xing

2007-11-27T23:59:59.000Z

406

Development and commissioning of the Timing Counter for the MEG Experiment  

E-Print Network (OSTI)

The Timing Counter of the MEG (Mu to Electron Gamma) experiment is designed to deliver trigger information and to accurately measure the timing of the $e^+$ in searching for the decay $\\mu^+ \\rightarrow e^+\\gamma$. It is part of a magnetic spectrometer with the $\\mu^+$ decay target in the center. It consists of two sectors upstream and downstream the target, each one with two layers: the inner one made with scintillating fibers read out by APDs for trigger and track reconstruction, the outer one consisting in scintillating bars read out by PMTs for trigger and time measurement. The design criteria, the obtained performances and the commissioning of the detector are presented herein.

M. De Gerone; S. Dussoni; K. Fratini; F. Gatti; R. Valle; G. Boca; P. W. Cattaneo; R. Nard; M. Rossella; L. Galli; M. Grassi; D. Nicol; Y. Uchiyama; D. Zanello

2011-12-01T23:59:59.000Z

407

Mid-infrared femtosecond optical parametric amplification in potassium niobate  

Science Conference Proceedings (OSTI)

We generated synchronized sub-200-fs pulses between 3 and 4.4{mu}m at a 1-kHz repetition rate by pumping a KNbO{sub 3} optical parametric amplifier with a femtosecond Ti:sapphire regenerative amplifier and seeding it by narrow-band quasi-cw radiation. Output idler energies as high as 7{mu}J at 4{mu}m are reported from this extremely simple single-stage device, which correspond to amplification factors as high as 3{times}10{sup 5} and a conversion efficiency of 15. {copyright} {ital 1996 Optical Society of America.}

Petrov, V.; Noack, F. [Max Born Institute for Nonlinear Optics and Ultrafast Spectroscopy, Rudower Chaussee 6, D-12474 Berlin (Germany)

1996-10-01T23:59:59.000Z

408

Reflective optical imaging system for extreme ultraviolet wavelengths  

DOE Patents (OSTI)

This invention is comprised of a projection reflection optical system having two mirrors in a coaxial, four reflection configuration to reproduce the image of an object. The mirrors have aspherical reflection surfaces to provide a very high resolution of object feature wavelengths less than 200 {mu}m, and preferably less than 100 {mu}m. An image resolution of features less than 0.05--0.1 {mu}m, is obtained over a large area field; i.e., 25.4 mm {times} 25.4 mm, with a distortion less than 0.1 of the resolution over the image field.

Viswanathan, V.K.; Newnam, B.E.

1991-12-31T23:59:59.000Z

409

A Family By Yellow River  

E-Print Network (OSTI)

River, opposite to Shenxi Province across the River, is within the central zone of Huangtu Plateau Culture in midland China. In history Qikou was a transport hinge connecting Sichuan to the west and Baotou (Inner Mongolia) to the northwest. Still seen... . They own seven mu (a mu is one fifteenth of a hectare) of jujube trees, which is an area expanded on a basis of one mu last year. The labour is tough with a typical droughty climate of Loess Plateau. Shouldering a pole with two buckets at either end...

China Central Television (CCTV)

2005-04-06T23:59:59.000Z

410

Films by Zhou Bing and on CCTV in China  

E-Print Network (OSTI)

. They own seven mu (a mu is one fifteenth of a hectare) of jujube trees, which is an area expanded on a basis of one mu last year. The labour is tough with a typical droughty climate of Loess Plateau. Shouldering a pole with two buckets at either end... River, opposite to Shenxi Province across the River, is within the central zone of Huangtu Plateau Culture in midland China. In history Qikou was a transport hinge connecting Sichuan to the west and Baotou (Inner Mongolia) to the northwest. Still seen...

Bing, Zhou

2009-07-03T23:59:59.000Z

411

Light front approach to correlations in hot quark matter  

E-Print Network (OSTI)

We investigate two-quark correlations in hot and dense quark matter. To this end we use the light front field theory extended to finite temperature $T$ and chemical potential $\\mu$. Therefore it is necessary to develop quantum statistics formulated on the light front plane. As a test case for light front quantization at finite $T$ and $\\mu$ we consider the NJL model. The solution of the in-medium gap equation leads to a constituent quark mass which depends on $T$ and $\\mu$. Two-quark systems are considered in the pionic and diquark channel. We compute the masses of the two-body system using a $T$-matrix approach.

S. Strauss; M. Beyer; S. Mattiello

2005-11-01T23:59:59.000Z

412

Improvements in dose accuracy delivered with static-MLC IMRT on an integrated linear accelerator control system  

Science Conference Proceedings (OSTI)

Purpose: Dose accuracy has been shown to vary with dose per segment and dose rate when delivered with static multileaf collimator (SMLC) intensity modulated radiation therapy (IMRT) by Varian C-series MLC controllers. The authors investigated the impact of monitor units (MUs) per segment and dose rate on the dose delivery accuracy of SMLC-IMRT fields on a Varian TrueBeam linear accelerator (LINAC), which delivers dose and manages motion of all components using a single integrated controller. Methods: An SMLC sequence was created consisting of ten identical 10 x 10 cm{sup 2} segments with identical MUs. Beam holding between segments was achieved by moving one out-of-field MLC leaf pair. Measurements were repeated for various combinations of MU/segment ranging from 1 to 40 and dose rates of 100-600 MU/min for a 6 MV photon beam (6X) and dose rates of 800-2400 MU/min for a 10 MV flattening-filter free photon (10XFFF) beam. All measurements were made with a Farmer (0.6 cm{sup 3}) ionization chamber placed at the isocenter in a solid-water phantom at 10 cm depth. The measurements were performed on two Varian LINACs: C-series Trilogy and TrueBeam. Each sequence was delivered three times and the dose readings for the corresponding segments were averaged. The effects of MU/segment, dose rate, and LINAC type on the relative dose variation ({Delta}{sub i}) were compared using F-tests ({alpha} = 0.05). Results: On the Trilogy, large {Delta}{sub i} was observed in small MU segments: at 1 MU/segment, the maximum {Delta}{sub i} was 10.1% and 57.9% at 100 MU/min and 600 MU/min, respectively. Also, the first segment of each sequence consistently overshot ({Delta}{sub i} > 0), while the last segment consistently undershot ({Delta}{sub i} dose rates greater than 100 MU/min. The linear trend of decreasing dose accuracy as a function of increasing dose rate on the Trilogy is no longer apparent on TrueBeam, even for dose rates as high as 2400 MU/min. Dose inaccuracy averaged over all ten segments in each beam delivery sequence was larger for Trilogy than TrueBeam, with the largest discrepancy (0.2% vs 3%) occurring for 1 MU/segment beams at both 300 and 600 MU/min. Conclusions: Earlier generations of Varian LINACs exhibited large dose variations for small MU segments in SMLC-IMRT delivery. Our results confirmed these findings. The dose delivery accuracy for SMLC-IMRT is significantly improved on TrueBeam compared to Trilogy for every combination of low MU/segment (1-10) and high dose rate (200-600 MU/min), in part due to the faster sampling rate (100 vs 20 Hz) and enhanced electronic integration of the MLC controller with the LINAC. SMLC-IMRT can be implemented on TrueBeam with higher dose accuracy per beam ({+-}0.2% vs {+-}3%) than previous generations of Varian C-series LINACs for 1 MU/segment delivered at 600 MU/min).

Li Ji; Wiersma, Rodney D.; Stepaniak, Christopher J.; Farrey, Karl J.; Al-Hallaq, Hania A. [Department of Radiation and Cellular Oncology, University of Chicago, 5758 South Maryland Avenue, MC9006, Chicago, Illinois 60637 (United States)

2012-05-15T23:59:59.000Z

413

Ozone effects on inhibitors of human neutrophil proteinases  

SciTech Connect

The effects of ozone on human alpha 1-proteinase inhibitor (A-1-PI), alpha 1-antichymotrypsin (A-1-Achy), bronchial leukocyte proteinase inhibitor (BLPI), and Eglin C were studied using in vitro exposures in phosphate-buffered solutions. Following ozone exposure, inhibitory activities against human neutrophil elastase (HNE) and/or cathepsin G (Cat G) were measured. Exposure of A-1-PI to 50 mol O3/mol protein resulted in a complete loss of HNE inhibitory activity, whereas A-1-Achy lost only 50% of its Cat G inhibitory activity and remained half active even after exposure to 250 mol of O3. At 40 mol O3/mol protein, BLPI lost 79% of its activity against HNE and 87% of its Cat G inhibitory activity. Eglin C, a leech-derived inhibitor, lost 81% of its HNE inhibitory activity and 92% of its ability to inhibit Cat G when exposed to 40 mol O3/mol. Amino acid analyses of ozone-exposed inhibitors showed destruction of Trp, Met, Tyr, and His with as little as 10 mol O3/mol protein, and higher levels of O3 resulted in more extensive oxidation of susceptible residues. The variable ozone susceptibility of the different amino acid residues in the four proteins indicated that oxidation was a function of protein structure, as well as the inherent susceptibility of particular amino acids. Exposure of A-1-PI and BLPI in the presence of the antioxidants, Trolox C (water soluble vitamin E) and ascorbic acid (vitamin C), showed that antioxidant vitamins may protect proteins from oxidative inactivation by ozone. Methionine-specific modification of BLPI reduced its HNE and Cat G inhibitory activities. Two moles of N-chlorosuccinimide per mole of BLPI methionine caused an 80% reduction in activity against Cat G, but only a 40% reduction in HNE inhibitory activity.

Smith, C.E.; Stack, M.S.; Johnson, D.A.

1987-02-15T23:59:59.000Z

414

Strangeness production in hadronic and quark matter: A quantitative differentiation  

SciTech Connect

We consider the production of strange particles in relativistic nucleus-nucleus collisions employing the hadron gas (HG) and quark-gluon plasma (QGP) formalism. We locate the region in the phase diagram where [mu][sub [ital s

Asprouli, M.N.; Panagiotou, A.D. (Physics Department, Nuclear Particle Physics Division, University of Athens, Panepistimiopolis, GR-157 71 Athens (Greece))

1995-02-01T23:59:59.000Z

415

Fermilab GSA  

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

Vladimir Khalatyan Graduate Student at Northern Illinois University on Mu2e Candidate Statement My name is Vladimir Khalatyan and I am a visitor at Fermilab from Northern Illinois...

416

Ultra-high current density thin-film Si diode  

DOE Patents (OSTI)

A combination of a thin-film .mu.c-Si and a-Si:H containing diode structure characterized by an ultra-high current density that exceeds 1000 A/cm.sup.2, comprising: a substrate; a bottom metal layer disposed on the substrate; an n-layer of .mu.c-Si deposited the bottom metal layer; an i-layer of .mu.c-Si deposited on the n-layer; a buffer layer of a-Si:H deposited on the i-layer, a p-layer of .mu.c-Si deposited on the buffer layer; and a top metal layer deposited on the p-layer.

Wang; Qi (Littleton, CO)

2008-04-22T23:59:59.000Z

417

Effects of surface condition on the corrosion of candidate structural materials in a simulated HTGR-GT environment  

DOE Green Energy (OSTI)

A simulated high-temperature gas-cooled reactor (HTGR) helium environment was used to study the effects of surface finish conditions on the subsequent elevated-temperature corrosion behavior of key candidate structural materials. The environment contained helium with 500 ..mu..atm H/sub 2//50 ..mu..atm CO/50 ..mu..atm CH/sub 4//<0.5 ..mu..atm H/sub 2/O at 900/sup 0/C with total test exposure durations of 3000 hours. Specimens with lapped, grit-blasted, pickled, and preoxidized surface conditions were studied. Materials tested included two cast superalloys, IN 100 and IN 713LC; one centrifugally cast high-temperature alloy, HK 40 one oxice-dispersion-strengthened alloy, Inconel MA 754; and three wrought high-temperature alloys, Hastelloy Alloy X, Inconel Alloy 617, and Alloy 800H.

Thompson, L.D.

1980-02-01T23:59:59.000Z

418

A new Einstein-nonlinear electrodynamics solution in 2+1-dimensions  

E-Print Network (OSTI)

We introduce a class of solutions in $2+1-$dimensional Einstein-Power-Maxwell theory for circularly symmetric electric field. The electromagnetic field is considered with an angular component given by $% F_{\\mu \

S. Habib Mazharimousavi; M. Halilsoy; Ozay Gurtug

2013-04-17T23:59:59.000Z

419

Study of the process e+e-\\to ?+?- in the energy region \\sqrt{s}=980, 1040 -- 1380 MeV  

E-Print Network (OSTI)

The cross section of the process e+e-\\to\\mu+\\mu- was measured in the SND experiment at the VEPP-2M e+e- collider in the energy region \\sqrt{s}=980, 1040 -- 1380 MeV. The event numbers of the process e+e-\\to\\mu+\\mu- were normalized to the integrated luminosity measured using e+e-\\to e+e- and e+e-\\to\\gamma\\gamma processes. The ratio of the measured cross section to the theoretically predicted value is 1.006\\pm 0.007 \\pm 0.016 and 1.005 \\pm 0.007 \\pm 0.018 in the first and second case respectively. Using results of the measurements, the electromagnetic running coupling constant \\alpha in the energy region \\sqrt{s}=1040 -- 1380 MeV was obtained = 134.1\\pm 0.5 \\pm 1.2 and this is in agreement with theoretical expectation.

M. N. Achasov; V. M. Aulchenko; K. I. Beloborodov; A. V. Berdyugin; A. G. Bogdanchikov; A. D. Bukin; D. A. Bukin; T. V. Dimova; V. P. Druzhinin; V. B. Golubev; I. A. Koop; A. A. Korol; S. V. Koshuba; A. P. Lysenko; E. V. Pakhtusova; E. A. Perevedentsev; S. I. Serednyakov; Yu. M. Shatunov; Z. K. Silagadze; A. N. Skrinsky; Yu. A. Tikhonov; A. V. Vasiljev

2008-10-03T23:59:59.000Z

420

Supplemental Material for Forty Five Years of Observed Soil Moisture in the Ukraine: No  

E-Print Network (OSTI)

Desiccation (Yet) Alan Robock,1 Mingquan Mu,2 Konstantin Vinnikov,3 Iryna V. Trofimova,4 and Tatyjana I and solar insolation), and the nudging employed. In terms of land surface, ERA40 uses a scheme called TESSEL

Robock, Alan

Note: This page contains sample records for the topic "mu mol mol-1" 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

Tuning the photophysical properties of amidophosphine complexes of copper  

E-Print Network (OSTI)

A series of monomeric copper complexes that allow for the tuning of the emission properties is reported. Luminescence lifetimes up to 150 [mu]s are observed in benzene solution at ambient temperature, which are comparable ...

Mickenberg, Seth F. (Seth Fox)

2009-01-01T23:59:59.000Z

422

Transient power supply voltage (v{sub DDT}) analysis for detecting IC defects  

SciTech Connect

Transient power supply voltage (V{sub DDT}) analysis is a new testing technique demonstrated as a powerful alternative and complement to I{sub DDQ} testing. V{sub DDT} takes advantage of the limited response time of a voltage supply to the changing power demands of an IC during operation. Changes in the V{sub DD} response time are used to detect increases in power demand with resolutions of 100 nA at 100 kHz, 1 {mu}A at 1 MHz, and 2.5 {mu}A at 1.5 MHz. These current sensitivities have been shown for ICs with quiescent currents < 0.1 {mu}A and > 300 {mu}A. The V{sub DDT} signal acquisition protocols, frequency versus sensitivity tradeoffs, hardware considerations and limitations, data examples, and areas for future research are described.

Cole, E.I. Jr.; Soden, J.M.; Beegle, R.W. [and others

1997-04-01T23:59:59.000Z

423

MUCOOL: Ionization Cooling R&D  

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

Laboratory MUCOOL Muon Ionization Cooling R&D Welcome to the muon ionization cooling experimental R&D page. The MuCool collaboration has been formed to pursue the development of a...

424

Axial Current Generation from Electric Field: Chiral Electric Separation Effect  

E-Print Network (OSTI)

We study a relativistic plasma containing charged chiral fermions in an external electric field. We show that with the presence of both vector and axial charge densities, the electric field can induce an axial current along its direction and thus cause chirality separation. We call it the Chiral Electric Separation Effect (CESE). On very general basis, we argue that the strength of CESE is proportional to $\\mu_V\\mu_A$ with $\\mu_V$ and $\\mu_A$ the chemical potentials for vector charge and axial charge. We then explicitly calculate this CESE conductivity coefficient in thermal QED at leading-log order. The CESE can manifest a new gapless wave mode propagating along the electric field. Potential observable of CESE in heavy-ion collisions is also discussed.

Xu-Guang Huang; Jinfeng Liao

2013-03-28T23:59:59.000Z

425

Counting self-avoiding walks  

E-Print Network (OSTI)

The connective constant \\mu(G) of a graph G is the asymptotic growth rate of the number of self-avoiding walks on G from a given starting vertex. We survey three aspects of the dependence of the connective constant on the underlying graph G. Firstly, when G is cubic, we study the effect on \\mu(G) of the Fisher transformation (that is, the replacement of vertices by triangles). Secondly, we discuss upper and lower bounds for \\mu(G) when G is regular. Thirdly, we present strict inequalities for the connective constants \\mu(G) of vertex-transitive graphs G, as G varies. As a consequence of the last, the connective constant of a Cayley graph of a finitely generated group decreases strictly when a new relator is added, and increases strictly when a non-trivial group element is declared to be a generator. Special prominence is given to open problems.

Geoffrey R. Grimmett; Zhongyang Li

2013-04-26T23:59:59.000Z

426

Measurement of W and Z production cross-sections in p{bar p} collisions at {radical}s = 1.8 TeV  

Science Conference Proceedings (OSTI)

The cross sections for W and Z production in p{bar p} collisions at {radical}s = 1.8 TeV are measured using the D0 detector at the Fermilab Tevatron collider. The detected final states are W {yields} ev{sub e}, Z {yields} e{sup +}e{sup {minus}}, W {yields} {mu}v{sub {mu}}, and Z {yields} {mu}{sup +}{mu}{sup {minus}}. In the ratio of these measurements, many common sources of systematic error cancel and we measure R = {sigma},(p{bar p} {yields} W) {center_dot} Br(W {yields} lv)/ {sigma},(p{bar p} {yields} Z) {center_dot} Br(Z {yields} l{sup +}l{sup {minus}}). Assuming standard model couplings, this result is used to determine the width of the W bosom and to set a limit on the decay W{sup +} {yields} t{bar b}.

Quintas, P.Z.; D0 Collaboration

1994-09-01T23:59:59.000Z

427

www.eia.gov  

U.S. Energy Information Administration (EIA)

Oriente (30) VE Bachaquero (24) Bachaquero (17) NO Ekofisk Blend (42) UK Brent Blend (38) RS Middle East IR Iranian Light (34) IZ KU MU QA SA Arabian Heavy (27) TC ...

428

Oilseeds of the future: Part 1  

Science Conference Proceedings (OSTI)

To find out about some of the modified oilseeds working their way through the research and development pipeline, inform recently solicited information from a variety of companies and research institutions via an e-mailed questionnaire. CANOLA/ RAPESEED/ MU

429

MEASUREMENT OF RADIATION FIELD AROUND HIGH-ENERGY ACCELERATORS  

E-Print Network (OSTI)

a. > a. > ::J LL o Thickness of plywood (in. ) MU-26413 Fig.of Bevatron stray neutrons in plywood: two-counter study inof the attenuation in plywood of the Bevatron stray neutron

Smith, Alan R.

2011-01-01T23:59:59.000Z

430

University of Central Florida at TRECVID 2007 Semantic ...  

Science Conference Proceedings (OSTI)

... These classifiers were tested on the validation dataset for all 36 ... difference of the content of the training and testing data set. ... mu sica l in stru me nts ...

2007-11-28T23:59:59.000Z

431

Amorphous silicon pixel radiation detectors and associated thin film transistor electronics readout  

SciTech Connect

We describe the characteristics of thin (1 {mu}m) and thick (> 30 {mu}m) hydrogenated amorphous silicon p-i-n diodes which are optimized for detecting and recording the spatial distribution of charged particles, x-ray, {gamma} rays and thermal neutrons. For x-ray, {gamma} ray, and charged particle detection we can use thin p-i-n photosensitive diode arrays coupled to evaporated layers of suitable scintillators. For thermal neutron detection we use thin (2{approximately}5 {mu}m) gadolinium converters on 30 {mu}m thick a-Si:H diodes. For direct detection of minimum ionizing particles and others with high resistance to radiation damage, we use the thick p-i-n diode arrays. Diode and amorphous silicon readouts as well as polysilicon pixel amplifiers are described.

Perez-Mendez, V.; Cho, G.; Drewery, J.; Jing, T.; Kaplan, S.N.; Mireshghi, A.; Wildermuth, D. (Lawrence Berkeley Lab., CA (United States)); Goodman, C. (Air Techniques Corp., Hicksville, New York (United States)); Fujieda, I. (NEC Corp., Tokyo (Japan))

1992-07-01T23:59:59.000Z

432

Electron-muon heat conduction in neutron star cores via the exchange of transverse plasmons  

E-Print Network (OSTI)

We calculate the thermal conductivity of electrons and muons kappa_{e-mu} produced owing to electromagnetic interactions of charged particles in neutron star cores and show that these interactions are dominated by the exchange of transverse plasmons (via the Landau damping of these plasmons in nonsuperconducting matter and via a specific plasma screening in the presence of proton superconductivity). For normal protons, the Landau damping strongly reduces kappa_{e-mu} and makes it temperature independent. Proton superconductivity suppresses the reduction and restores the Fermi-liquid behavior kappa_{e-mu} ~ 1/T. Comparing with the thermal conductivity of neutrons kappa_n, we obtain kappa_{e-mu}> kappa_n for T>2 GK in normal matter and for any T in superconducting matter with proton critical temperatures T_c>3e9 K. The results are described by simple analytic formulae.

P. S. Shternin; D. G. Yakovlev

2007-05-14T23:59:59.000Z

433

NCNR BT5-USANS Instrument Schedule D. Mildner Tel: (301) ...  

Science Conference Proceedings (OSTI)

... crystal Mar 14 2 Mu-Ping Nieh Aggregation of Surfynol 2H Kim,Barker 480 surfactant Mar 16 22 TBA 2H Barker Apr 6 2 Chilled water outage, 2H ...

434

Particle Data Group - 2010 Summary Tables  

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

Gauge and Higgs Bosons (gamma, g, W, Z, ...) Leptons (e, mu, tau, ... neutrinos ...) Quarks (u, d, s, c, b, t, b', t', Free) Mesons errata contents Baryons errata contents...

435

Particle Data Group - 2009 Summary Tables  

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

Gauge and Higgs Bosons (gamma, g, W, Z, ...) Leptons (e, mu, tau, ... neutrinos ...) Quarks (u, d, s, c, b, t, b', t', Free) Mesons contents Baryons contents Searches (Monopoles,...

436

Particle Data Group - 2008 Summary Tables  

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

Gauge and Higgs Bosons (gamma, g, W, Z, ...) Leptons (e, mu, tau, ... neutrinos ...) Quarks (u, d, s, c, b, t, b', t', Free) Mesons contents Baryons contents Searches (Monopoles,...

437

The Spatial Structure of RASS Echoes  

Science Conference Proceedings (OSTI)

An experiment to observe the spatial distribution of radio acoustic sounding system (RASS) echo intensity and Doppler shift using the MU radar is described. Various transmitting configurations are used to confirm that the RASS signal is focused ...

Peter T. May; Tatsuhiro Adachi; Toshitaka Tsuda; Richard J. Lataitis

1996-12-01T23:59:59.000Z

438

A new measurement of the altitude dependence of the atmospheric muon intensity  

E-Print Network (OSTI)

We present a new measurement of atmospheric muons made during an ascent of the High Energy Antimatter Telescope balloon experiment. The muon charge ratio mu+/mu- as a function of atmospheric depth in the momentum interval 0.3-0.9 GeV/c is presented. The differential mu- intensities in the 0.3-50 GeV/c range and for atmospheric depths between 4-960 g/cm^2 are also presented. We compare these results with other measurements and model predictions. We find that our charge ratio is ~1.1 for all atmospheric depths and is consistent, within errors, with other measurements and the model predictions. We find that our measured mu- intensities are also consistent with other measurements, and with the model predictions, except at shallow atmospheric depths.

J. J. Beatty; S. Coutu; S. A. Minnick; A. Bhattacharyya; C. R. Bower; J. A. Musser; S. P. McKee; M. Schubnell; G. Tarle; A. D. Tomasch; A. W. Labrador; D. Muller; S. P. Swordy; M. A. DuVernois; S. L. Nutter

2004-10-22T23:59:59.000Z

439

New measurement of the altitude dependence of the atmospheric muon intensity  

SciTech Connect

We present a new measurement of atmospheric muons made during an ascent of the High Energy Antimatter Telescope balloon experiment. The muon charge ratio {mu}{sup +}/{mu}{sup -} as a function of atmospheric depth in the momentum interval 0.3-0.9 GeV/c is presented. The differential {mu}{sup -} intensities in the 0.3-50 GeV/c range and for atmospheric depths between 4-960 g/cm{sup 2} are also presented. We compare these results with other measurements and model predictions. We find that our charge ratio is {approx}1.1 for all atmospheric depths and is consistent, within errors, with other measurements and the model predictions. We find that our measured {mu}{sup -} intensities are also consistent with other measurements, and with the model predictions, except at shallow atmospheric depths.

Beatty, J.J.; Coutu, S.; Minnick, S.A.; Bhattacharyya, A.; Bower, C.R.; Musser, J.A.; McKee, S.P.; Schubnell, M.; Tarle, G.; Tomasch, A.D.; Labrador, A.W.; Mueller, D.; Swordy, S.P.; DuVernois, M.A.; Nutter, S.L. [Departments of Physics and of Astronomy and Astrophysics, 104 Davey Laboratory, Pennsylvania State University, University Park, Pennsylvania 16802 (United States); Department of Physics, Swain Hall West, Indiana University, Bloomington, Indiana 47405 (United States); Department of Physics, Randall Laboratory, University of Michigan, 500 E. University Avenue, Ann Arbor, Michigan 48109-1120 (United States); Enrico Fermi Institute and Department of Physics, 933 E. 56th Street, University of Chicago, Chicago, Illinois 60637 (United States); School of Physics and Astronomy, 16 Church Street SE, University of Minnesota, Minneapolis, Minnesota 55455 (United States); Department of Physics and Geology, SC 147, Northern Kentucky University, Highland Heights, Kentucky 41099 (United States)

2004-11-01T23:59:59.000Z

440

Energy Spectra, Altitude Profiles and Charge Ratios of Atmospheric Muons  

E-Print Network (OSTI)

We present a new measurement of air shower muons made during atmospheric ascent of the High Energy Antimatter Telescope balloon experiment. The muon charge ratio mu+ / mu- is presented as a function of atmospheric depth in the momentum interval 0.3-0.9 GeV/c. The differential mu- momentum spectra are presented between 0.3 and about 50 GeV/c at atmospheric depths between 13 and 960 g/cm^2. We compare our measurements with other recent data and with Monte Carlo calculations of the same type as those used in predicting atmospheric neutrino fluxes. We find that our measured mu- fluxes are smaller than the predictions by as much as 70% at shallow atmospheric depths, by about 20% at the depth of shower maximum, and are in good agreement with the predictions at greater depths. We explore the consequences of this on the question of atmospheric neutrino production.

S. Coutu; J. J. Beatty; M. A. DuVernois; S. W. Barwick; E. Schneider; A. Bhattacharyya; C. R. Bower; J. A. Musser; A. Labrador; D. Muller; S. P. Swordy; E. Torbet; C. Chaput; S. McKee; G. Tarle; A. D. Tomasch; S. L. Nutter; G. A. deNolfo

2000-04-07T23:59:59.000Z

Note: This page contains sample records for the topic "mu mol mol-1" 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

How Much Multiuser Diversity is Required for Energy Limited Multiuser Systems?  

E-Print Network (OSTI)

Multiuser diversity (MUDiv) is one of the central concepts in multiuser (MU) systems. In particular, MUDiv allows for scheduling among users in order to eliminate the negative effects of unfavorable channel fading conditions of some users on the system performance. Scheduling, however, consumes energy (e.g., for making users' channel state information available to the scheduler). This extra usage of energy, which could potentially be used for data transmission, can be very wasteful, especially if the number of users is large. In this paper, we answer the question of how much MUDiv is required for energy limited MU systems. Focusing on uplink MU wireless systems, we develop MU scheduling algorithms which aim at maximizing the MUDiv gain. Toward this end, we introduce a new realistic energy model which accounts for scheduling energy and describes the distribution of the total energy between scheduling and data transmission stages. Using the fact that such energy distribution can be controlled by varying the num...

Ko, Youngwook; Ardakani, Masoud

2010-01-01T23:59:59.000Z

442

An Efficient Piezoelectric Energy Harvesting Interface Circuit Using a Bias-Flip Rectifier and Shared Inductor  

E-Print Network (OSTI)

Harvesting ambient vibration energy through piezoelectric means is a popular energy harvesting technique which can potentially supply 10-100's of [mu]W of available power. One of the main limitations of existing piezoelectric ...

Ramadass, Yogesh Kumar

443

Charged lepton electric dipole moment enhancement in the Lorentz violated extension of the standard model  

E-Print Network (OSTI)

We consider the Lorentz violated extension of the standard model. In this framework, there are terms that explicitly violate CP-symmetry. We examine the CPT-even $d_{\\mu\

M. Haghighat; I. Motie; Z. Rezaei

2013-08-06T23:59:59.000Z

444

PowerPoint Presentation  

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

and the expertise of the NRL staff, we create MuSIC architectures that bridge macro and nano worlds and enable experimental access to phenomena that span strikingly distant spatial...

445

Low density carbonized composite foams  

DOE Patents (OSTI)

A carbonized composite foam having a density less than about 50 mg/cm{sup 3} and individual cell sizes no greater than about 1 {mu}m in diameter is described, and the process of making it. 3 figs.

Kong, Fung-Ming.

1989-12-07T23:59:59.000Z

446

A solar module fabrication process for HALE solar electric UAVs  

DOE Green Energy (OSTI)

We describe a fabrication process used to manufacture high power-to-weight-ratio flexible solar array modules for use on high-altitude-long-endurance (HALE) solar-electric unmanned air vehicles (UAVs). These modules have achieved power-to-weight ratios of 315 and 396 W/kg for 150{mu}m-thick monofacial and 110{mu}m-thick bifacial silicon solar cells, respectively. These calculations reflect average module efficiencies of 15.3% (150{mu}m) and 14.7% (110{mu}m) obtained from electrical tests performed by Spectrolab, Inc. under AMO global conditions at 25{degrees}C, and include weight contributions from all module components (solar cells, lamination material, bypass diodes, interconnect wires, and adhesive tape used to attach the modules to the wing). The fabrication, testing, and performance of 32 m{sup 2} of these modules will be described.

Carey, P.G.; Aceves, R.C.; Colella, N.J.; Williams, K.A. [Lawrence Livermore National Lab., CA (United States); Sinton, R.A. [Private Consultant, San Jose, CA (United States); Glenn, G.S. [Spectrolab, Inc., Sylmar, CA (United States)

1994-12-12T23:59:59.000Z

447

The air quality and health impacts of aviation in Asia  

E-Print Network (OSTI)

Aviation in Asia is growing more rapidly than other regions around the world. Adverse health impacts of aviation are linked to an increase in the concentration of particulate matter smaller than 2.5 [mu]m in diameter ...

Lee, In Hwan, S.M. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

448

SUBMILLIMETER OBSERVATIONS OF DENSE CLUMPS IN THE INFRARED DARK CLOUD G049.40-00.01  

Science Conference Proceedings (OSTI)

We obtained 350 and 850 {mu}m continuum maps of the infrared dark cloud G049.40-00.01. Twenty-one dense clumps were identified within G049.40-00.01 based on the 350 {mu}m continuum map with an angular resolution of about 9.''6. We present submillimeter continuum maps and report physical properties of the clumps. The masses of clumps range from 50 to 600 M{sub Sun }. About 70% of the clumps are associated with bright 24 {mu}m emission sources, and they may contain protostars. The two most massive clumps show extended, enhanced 4.5 {mu}m emission indicating vigorous star-forming activity. The clump-size-mass distribution suggests that many of them are forming high-mass stars. G049.40-00.01 contains numerous objects in various evolutionary stages of star formation, from pre-protostellar clumps to H II regions.

Kang, Miju; Choi, Minho [Korea Astronomy and Space Science Institute, 776 Daedeokdaero, Yuseong, Daejeon 305-348 (Korea, Republic of); Bieging, John H. [Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States); Rho, Jeonghee [SOFIA Science Center, USRA/NASA Ames Research Center, Moffet Field, CA 94035 (United States); Lee, Jeong-Eun [Department of Astronomy and Space Science, Kyung Hee University, Yongin, Gyeonggi 446-701 (Korea, Republic of); Tsai, Chao-Wei, E-mail: mjkang@kasi.re.kr [Infrared Processing and Analysis Center, California Institute of Technology, Pasadena, CA 91125 (United States)

2011-12-20T23:59:59.000Z

449

On convergence of the Flint Hills series  

E-Print Network (OSTI)

It is not known whether the Flint Hills series $\\sum_{n=1}^{\\infty} \\frac{1}{n^3\\cdot\\sin(n)^2}$ converges. We show that this question is closely related to the irrationality measure of $\\pi$, denoted $\\mu(\\pi)$. In particular, convergence of the Flint Hills series would imply $\\mu(\\pi) \\leq 2.5$ which is much stronger than the best currently known upper bound $\\mu(\\pi)\\leq 7.6063...$. This result easily generalizes to series of the form $\\sum_{n=1}^{\\infty} \\frac{1}{n^u\\cdot |\\sin(n)|^v}$ where $u,v>0$. We use the currently known bound for $\\mu(\\pi)$ to derive conditions on $u$ and $v$ that guarantee convergence of such series.

Alekseyev, Max A

2011-01-01T23:59:59.000Z

450

Higgs searches and WW scattering - Springer  

Science Conference Proceedings (OSTI)

while H survives as a real SU(2)-singlet scalar field - the Higgs boson - with mass mu = V/~v. To recover standard Fermi couplings we must have v = (~/2GF) -1/~...

451

Forecasting the Path of China's CO2 Emissions Using Province Level Information  

E-Print Network (OSTI)

Garin-Mu oz, T. : 2002, Forecasting chinas carbon dioxideF. X. : 2001, Elements of Forecasting, South-Western College2003, Macroeconomic forecasting in the euro area: Country

Auffhammer, Maximilian; Carson, Richard T.

2007-01-01T23:59:59.000Z

452

SU?FF?T?388: Secondary Radiation Doses From CyberKnife SRS/RT  

Science Conference Proceedings (OSTI)

Purpose: Because of extensive use of conventional x?rays in CyberKnife SRS/RT for treatment tracking and large number of monitor units (MU) in beam delivery

C Yu

2006-01-01T23:59:59.000Z

453

Progress Report No. 65 Aug. 15-Sept. 15, 1948  

E-Print Network (OSTI)

following problems; Papers for the Plutonium Project Record.acid. Engineering De~elopment of Plutonium Separation. thebe mu~hmore malleable than plutonium as judged by the breaks

Various

2008-01-01T23:59:59.000Z

454

For Physicists  

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

Current Wilson Fellows Name Start Date Experiment Jim Hirschauer August 2013 CMS Sergo Jindariani August 2012 CMS Andrei Gaponenko August 2011 Mu2e Jong Hee Yoo July 2010 CDMS...

455

Fermilab | Science at Fermilab | Experiments & Projects | Proposed...  

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

Frontier Proposed Projects and Experiments LBNE Mu2e Project X NOvA MicroBooNE MICE Dark Energy Survey LSST The MINERvA Full Module Prototype plane moves into the NuMI...

456

CONSTRUCTING A WISE HIGH RESOLUTION GALAXY ATLAS  

Science Conference Proceedings (OSTI)

After eight months of continuous observations, the Wide-field Infrared Survey Explorer (WISE) mapped the entire sky at 3.4 {mu}m, 4.6 {mu}m, 12 {mu}m, and 22 {mu}m. We have begun a dedicated WISE High Resolution Galaxy Atlas project to fully characterize large, nearby galaxies and produce a legacy image atlas and source catalog. Here we summarize the deconvolution techniques used to significantly improve the spatial resolution of WISE imaging, specifically designed to study the internal anatomy of nearby galaxies. As a case study, we present results for the galaxy NGC 1566, comparing the WISE enhanced-resolution image processing to that of Spitzer, Galaxy Evolution Explorer, and ground-based imaging. This is the first paper in a two-part series; results for a larger sample of nearby galaxies are presented in the second paper.

Jarrett, T. H.; Masci, F.; Tsai, C. W.; Fowler, J. [Infrared Processing and Analysis Center (IPAC), California Institute of Technology, Pasadena, CA 91125 (United States); Petty, S.; Lake, S.; Wright, E. [Physics and Astronomy Department, University of California, Los Angeles, CA 90095 (United States); Cluver, M. [Australian Astronomical Observatory, P.O. Box 296, Epping, NSW 1710 (Australia); Assef, Roberto J.; Eisenhardt, P. [Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Mail Stop 169-221, Pasadena, CA 91109 (United States); Benford, D. [NASA Goddard Space Flight Center, Code 665, Greenbelt, MD 20771 (United States); Blain, A. [Department of Physics and Astronomy, University of Leicester, LE1 7RH Leicester (United Kingdom); Bridge, C.; Neill, James D. [Department of Astronomy, California Institute of Technology, Pasadena, CA 91125 (United States); Donoso, E. [Spitzer Science Center, IPAC, California Institute of Technology, Pasadena, CA 91125 (United States); Koribalski, B. [CSIRO Astronomy and Space Science, Australia Telescope National Facility (ATNF), P.O. Box 76, Epping, NSW 1710 (Australia); Seibert, M. [Observatories of the Carnegie Insititution for Science, 813 Santa Barbara Street, Pasadena, CA 91101 (United States); Sheth, K. [NASA Postdoctoral Program Fellow. (United States); Stanford, S., E-mail: jarrett@ipac.caltech.edu [Department of Physics, University of California, One Shields Avenue, Davis, CA 95616 (United States)

2012-08-15T23:59:59.000Z

457

A microfabricated ElectroQuasiStatic induction turbine-generator  

E-Print Network (OSTI)

An ElectroQuasiStatic (EQS) induction machine has been fabricated and has generated net electric power. A maximum power output of 192 [mu]W at 235 krpm has been measured under driven excitation of the six phases. Self ...

Steyn, J. Lodewyk (Jasper Lodewyk), 1976-

2005-01-01T23:59:59.000Z

458

Effects of Atmospheric Stability on Wave and Energy Propagation in the Troposphere  

Science Conference Proceedings (OSTI)

The very high frequency (VHF) middle and upper atmosphere radar radio acoustic sounding system (MU-RASS) in Shigaraki, Japan, is able to provide tropospheric virtual temperature data with high temporal resolution on the order of a few minutes. ...

Simon P. Alexander; Toshitaka Tsuda; Junichi Furumoto

2007-04-01T23:59:59.000Z

459

Nuclear fusion in muonic deuterium-helium complex  

E-Print Network (OSTI)

Experimental study of the nuclear fusion reaction in charge-asymmetrical d-mu-3He complex is presented. The 14.6 MeV protons were detected by three pairs of Si(dE-E) telescopes placed around the cryogenic target filled with the deuterium + helium-3 gas at 34 K. The 6.85 keV gamma rays emitted during the de-excitation of d-mu-3He complex were detected by a germanium detector. The measurements were performed at two target densities, 0.0585 and 0.169 (relative to liquid hydrogen density) with an atomic concentration of 3He c=0.0469. The values of the effective rate of nuclear fusion in d-mu-3He was obtained for the first time, and the J=0 nuclear fusion rate in d-mu-3He was derived.

V. M. Bystritsky; M. Filipowicz; V. V. Gerasimov; P. E. Knowles; F. Mulhauser; N. P. Popov; V. A. Stolupin; V. P. Volnykh; J. Wozniak

2005-06-22T23:59:59.000Z

460

Materials for Information Technology  

E-Print Network (OSTI)

and Thermoplastic Nanocomposites Based upon Expanded Graphite Oxide R. Mu¨lhaupt et al. Macromol. Rapid Commun. 2009 with a template-directed and surface- modified method using pretreated polystyrene beads. The resulting core

Tang, Ben Zhong

Note: This page contains sample records for the topic "mu mol mol-1" 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

Low Dose Radiation Stimulates Antioxidant Capacity in the Brain...  

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

Mu , C-M Charlie Ma , Lili Chen , Darrell Q. Brown , Sam Litwin , and Alfred G. Knudson Fox Chase Cancer Center, Philadelphia, PA Brian J. Augelli , S. Ausim Azizi , and Barbara...

462

Stabilizing the Semilocal String with a Dilatonic Coupling  

E-Print Network (OSTI)

We demonstrate that the stability of the semilocal vortex can be significantly improved by the presence of a dilatonic coupling of the form e^\\frac{q | \\Phi |^2}{\\eta^2} F_{\\mu \

Perivolaropoulos, Leandros

2013-01-01T23:59:59.000Z

463

Maple Worksheet - CECM  

E-Print Network (OSTI)

}{TEXT -1 44 " then L is a number field. .... 345 "qua siInverse := proc(m,u,z)\\ nlocal r0,r1,t0,t1,mu,q,g,beta;\

464

Improper Rotations'Symmetry of Electromagnetic Field and New Conserved Quantity of Complex Fields  

E-Print Network (OSTI)

It is established the partition of linear space $$ over the field of genuine scalars and pseudoscalars, the vectors in which are sets of contravariant and covariant electromagnetic field tensors and pseudotensors $F^{\\mu\

Yearchuck, D

2009-01-01T23:59:59.000Z

465

PRIMARY QUANTUM CONVERSION IN PHOTOSYNTHESIS  

E-Print Network (OSTI)

of pyridine nuclectide at - . volt, to those having a h&ha potential of about +8.45 volt. When baoteriar chrmatophoreexperiments, WEBOX PQTENTIAL (volts) MU-27272 Figure 9.

Calvin, Melvin; Androes, G.M.

1962-01-01T23:59:59.000Z

466

NOTE ON TRANSISTORS FOR AVALANCHE-MODE OPERATION  

E-Print Network (OSTI)

pulse generator is 40 to 60 volts (either polarity of outputceases to fire below 0.96 volts for I = 10fJ-A, c and belowc volts) Base trigger amplitude MU-

Miller, Harold W.

2010-01-01T23:59:59.000Z

467

NOTE ON TRANSISTORS FOR AVALANCHE-MODE OPERATION  

E-Print Network (OSTI)

LL Base trigger ampl itude (volts) MU-26298 u Q) c Q) Basegenerator is -to to 60 volts (either polarity of outputceases to ! ire below 0.96 volts for Ie :. : 10l-\\a, trigger

Miller, Harold W.

2010-01-01T23:59:59.000Z

468

A batteryless thermoelectric energy-harvesting interface circuit with 35mV startup voltage  

E-Print Network (OSTI)

A batteryless thermoelectric energy-harvesting interface circuit to extract electrical energy from human body heat is implemented in a 0.35 ?m [mu m] CMOS process. A mechanically assisted startup circuit enables operation ...

Ramadass, Yogesh Kumar

469

Particle Data Group - 2011 Summary Tables  

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

Gauge and Higgs Bosons (gamma, g, W, Z, ...) Leptons (e, mu, tau, ... neutrinos ...) Quarks (u, d, s, c, b, t, b', t', Free) Mesons contents Baryons contents Searches (Monopoles,...

470

Nitrates/Nitrites  

Science Conference Proceedings (OSTI)

Table 1   Corrosion rates of iron-base alloys in eutectic molten salt mixtures...Stainless steel μm/yr mils/yr μm/yr mils/yr NaNO 3 -NaCl-Na 2 SO 4 (86.3,8.4,5.3 mol%, respectively) 15 0.6 1 0.03 KNO 3 -KCl (94.6 mol%, respectively) 23 0.9 7.5 0.3 LiCl-KCl (58.42 mol%, respectively) 63 2.5 20 0.8...

471

LPG--a direct source of C/sub 3/-C/sub 4/ olefins  

SciTech Connect

This article describes the selective production of olefins by the catalytic dehydrogenation of the corresponding paraffins by means of UOP's Oleflex process. In this process, propylene can be obtained at about 85 mol % selectivity by the catalytic dehydrogenation of propane. Isobutylene can be obtained at selectivities in excess of 90 mol % from isobutane, and n-butenes (1-butene plus 2-butene) at about 80 mol % from n-butane. The availability of this technology, coupled with an abundant supply of LPG (C/sub 3/ and C/sub 4/ paraffins), opens new avenues for the selective production of propylene and butylenes.

Pujado, P.R.; Berg, R.C.; Vora, B.V.

1983-03-28T23:59:59.000Z

472

Experimental investigations in particle physics at intermediate energies  

Science Conference Proceedings (OSTI)

The major elements of this project continues to be on fundamental symmetries and parameters of the Standard Model. The projects in the current period have been BNL E791 (a search for the decay K{sub L}{sup 0} {yields} {mu}e, which would violate the rule of separate lepton number conservation), test of an upgrade proposal (E871), and LSND, a neutrino experiment at LAMPF. For E791, data taking was completed in June 1990, and preliminary results are now available for the decays K{sub L}{sup 0} {yields} {mu}e and K{sub L}{sup 0} {yields} {mu}{mu}from the entire data set. The data for decay K{sub L}{sup 0} {yields} ee are still being analysed. These are an upper limit for the branching fraction for K{sub L}{sup 0} {yields} {mu}e of 3.5 {times} 10{sup {minus}11} (90% C.L.). From the 1990 data alone, we have a new (preliminary) value of the branching fraction for K{sub L}{sup 0} {yields} {mu}{mu} of (6.96{plus minus}0. 4{plus minus}0.22) {times} 10{sup {minus}9}, with a sample of 349 events. Combining this with earlier data gives (6.96{plus minus}0.34) {times} 10{sup 9}, by far the most precise value. The limit on the decay K{sub L}{sup 0} {yields} {mu}e places a lower limit on the mass of a new particle mediating such decays of 85 TeV. The LSND (Large Scintillator Neutrino Detector), a search for neutrino oscillations at LAMPF, has been approved, and is now underway. Other neutrino work at Los Alamos, E764, has resulted in a final publication. This includes the best, measurement of {nu}-nuclear scattering, in {nu}{sub mu} {sup 12}C inclusive cross sections. The measurement of the cross section for the exclusive reaction {nu}{sup mu}{sup 12}C {yields} {mu}{sup {minus}12} N is unique. In a new development, Dr. Martoff has established a facility for fabrication of superconducting detectors of nuclear radiation; the equipment has been funded and is partly installed. Planned uses include scattering for Dark Matter.' In summary, the objectives for this year have been met.

Auerbach, L.B.; Highland, V.L.; Martoff, C.J.; McFarlane, K.W.; Guss, C.; Kettell, S.

1991-09-30T23:59:59.000Z

473

Experimental investigations in particle physics at intermediate energies. Performance report for December 1, 1990--November 30, 1991  

SciTech Connect

The major elements of this project continues to be on fundamental symmetries and parameters of the Standard Model. The projects in the current period have been BNL E791 (a search for the decay K{sub L}{sup 0} {yields} {mu}e, which would violate the rule of separate lepton number conservation), test of an upgrade proposal (E871), and LSND, a neutrino experiment at LAMPF. For E791, data taking was completed in June 1990, and preliminary results are now available for the decays K{sub L}{sup 0} {yields} {mu}e and K{sub L}{sup 0} {yields} {mu}{mu}from the entire data set. The data for decay K{sub L}{sup 0} {yields} ee are still being analysed. These are an upper limit for the branching fraction for K{sub L}{sup 0} {yields} {mu}e of 3.5 {times} 10{sup {minus}11} (90% C.L.). From the 1990 data alone, we have a new (preliminary) value of the branching fraction for K{sub L}{sup 0} {yields} {mu}{mu} of (6.96{plus_minus}0. 4{plus_minus}0.22) {times} 10{sup {minus}9}, with a sample of 349 events. Combining this with earlier data gives (6.96{plus_minus}0.34) {times} 10{sup 9}, by far the most precise value. The limit on the decay K{sub L}{sup 0} {yields} {mu}e places a lower limit on the mass of a new particle mediating such decays of 85 TeV. The LSND (Large Scintillator Neutrino Detector), a search for neutrino oscillations at LAMPF, has been approved, and is now underway. Other neutrino work at Los Alamos, E764, has resulted in a final publication. This includes the best, measurement of {nu}-nuclear scattering, in {nu}{sub mu} {sup 12}C inclusive cross sections. The measurement of the cross section for the exclusive reaction {nu}{sup mu}{sup 12}C {yields} {mu}{sup {minus}12} N is unique. In a new development, Dr. Martoff has established a facility for fabrication of superconducting detectors of nuclear radiation; the equipment has been funded and is partly installed. Planned uses include scattering for `Dark Matter.` In summary, the objectives for this year have been met.

Auerbach, L.B.; Highland, V.L.; Martoff, C.J.; McFarlane, K.W.; Guss, C.; Kettell, S.

1991-09-30T23:59:59.000Z

474

Nd:YAG single-crystal fiber laser: Room-temperature cw operation using a single LED as an end pump  

SciTech Connect

cw laser action has been obtained using as-grown single-crystal Nd:YAG fibers end-pumped by a single high-radiance LED. The fibers were 0.5 cm long and 80 ..mu..m in dia; the diameter of the LED luminous area was 85 ..mu..m. The lowest cw laser threshold was observed at a diode drive current of 45 mA. (AIP)

Stone, J.; Burrus, C.A.; Dentai, A.G.; Miller, B.I.

1976-07-01T23:59:59.000Z

475

Muon transfer from hot muonic hydrogen atoms to neon  

DOE Green Energy (OSTI)

A negative muon beam has been directed on adjacent solid layers of hydrogen and neon. Three targets differing by their deuterium concentration were investigated. Muonic hydrogen atoms can drift to the neon layer where the muon is immediately transferred. The time structure of the muonic neon X-rays follows the exponential law with a disappearance rate corresponding to the one of [mu][sup [minus]p] atoms in each target. The rates [lambda][sub pp[mu

Jacot-Guillarmod, R. (Fribourg Univ. (Switzerland). Inst. de Physique); Bailey, J.M. (Liverpool Univ. (United Kingdom)); Beer, G.A.; Knowles, P.E.; Mason, G.R.; Olin, A. (Victoria Univ., BC (Canada)); Beveridge, J.L.; Marshall, G.M.; Brewer, J.H.; Forster, B.M. (British Columbia Univ., Vancouver, BC (Canada)); Huber, T.M. (Gustavus Adolphus Coll., St. Peter, MN (United States)); Kammel, P.; Zmeskal, J.

1992-01-01T23:59:59.000Z

476

Thermal sensor with an improved coating  

DOE Patents (OSTI)

The disclosure is directed to an apparatus for detecting radiation having wavelengths from about 0.4 .mu.m to about 5.6 .mu.m. An optical coating is applied to a thermal sensor that is normally transparent to radiation with such wavelengths. The optical coating is thin and light and includes a modifier and an absorber. The thermal sensor can be a pyroelectric detector such as strontium barium niobate.

LaDelfe, Peter C. (Los Alamos, NM); Stotlar, Suzanne C. (Los Alamos, NM)

1986-01-01T23:59:59.000Z

477

Radiation dose from cigarette tobacco  

SciTech Connect

The radioactivity in tobacco leaves collected from 15 different regions of Greece before cigarette production was studied in order to estimate the effective dose from cigarette tobacco due to the naturally occurring primordial radionuclides, such as {sup 226}Ra and {sup 210}Pb of the uranium series and {sup 228}Ra of the thorium series and/or man-made produced radionuclides, such as {sup 137}Cs of Chernobyl origin. Gamma-ray spectrometry was applied using Ge planar and coaxial type detectors of high resolution and high efficiency. It was concluded that the annual effective dose due to inhalation for adults (smokers) for {sup 226}Ra varied from 42.5 to 178.6 {mu}Sv y{sup -1} (average 79.7 {mu}Sv y{sup -1}), while for {sup 228}Ra from 19.3 to 116.0 {mu}Sv y{sup -1} (average 67.1 {mu}Sv y{sup -1}) and for {sup 210}Pb from 47.0 to 134.9 {mu}Sv y{sup -1} (average 104.7 {mu}Sv y{sup -1}), that is the same order of magnitude for each radionuclide. The sum of the effective dose of the three natural radionuclides varied from 151.9 to 401.3 {mu}Sv y{sup -1} (average 251.5 {mu}Sv y{sup -1}). The annual effective dose from {sup 137}Cs of Chernobyl origin was three orders of magnitude lower as it varied from 70.4 to 410.4 nSv y{sup -1} (average 199.3 nSv y{sup -1})

Papastefanou, C. [Aristotle University of Thessaloniki, Atomic and Nuclear Physics Laboratory, Thessaloniki 54124 (Greece)

2008-08-07T23:59:59.000Z

478

Detection of hot muonic hydrogen atoms emitted in vacuum using x-rays  

DOE Green Energy (OSTI)

Negative muons are stopped in solid layers of hydrogen and neon. Muonic hydrogen atoms can drift to the neon layer where the muon is immediately transferred. It was found that the time structure of the muonic neon X-rays follows the exponential law where the rate is the same as the disappearance rate of {mu}{sup -}p atoms. The pp{mu}-formation rate and the muon transfer rate to deuterium are deduced.

Jacot-Guillarmod, R. [Fribourg Univ. (Switzerland); Bailey, J.M. [Liverpool Univ. (United Kingdom); Beer, G.A.; Knowles, P.E.; Mason, G.R.; Olin, A. [Victoria Univ., BC (Canada); Beveridge, J.L.; Marshall, G.M. [TRIUMF, Vancouver, BC (Canada); Brewer, J.H.; Forster, B.M. [British Columbia Univ., Vancouver, BC (Canada); Huber, T.M. [Gustavus Adolphus Coll., St. Peter, MN (United States); Kammel, P.; Zmeskal, J. [Oesterreichische Akademie der Wissenschaften, Vienna (Austria). Inst. fuer Mittelenergiephysik; Kunselman, A.R. [Wyoming Univ., Laramie, WY (United States); Petitjean, C. [Paul Scherrer Inst. (PSI), Villigen (Switzerland)

1992-12-31T23:59:59.000Z

479

Heavy quark free energies and screening at finite temperature and density  

E-Print Network (OSTI)

We study the free energies of heavy quarks calculated from Polyakov loop correlation functions in full 2-flavour QCD using the p4-improved staggered fermion action. A small but finite Baryon number density is included via Taylor expansion of the fermion determinant in the Baryo-chemical potential mu. For temperatures above Tc we extract Debye screening masses from the large distance behaviour of the free energies and compare their mu-dependence to perturbative results.

M. Doring; S. Ejiri; O. Kaczmarek; F. Karsch; E. Laermann

2005-09-27T23:59:59.000Z

480

Test of Fermi Gas Model and Plane-Wave Impulse Approximation Against Electron-Nucleus Scattering Data  

E-Print Network (OSTI)

A widely used relativistic Fermi gas model and plane-wave impulse approximation are tested against electron-nucleus scattering data. Inclusive quasi-elastic cross section are calculated and compared with high-precision data for C, O, and Ca. A dependence of agreement between calculated cross section and data on a momentum transfer is shown. Results for the C(nu_mu,mu) reaction are presented and compared with experimental data of the LSND collaboration.

A. V. Butkevich; S. P. Mikheyev

2005-04-30T23:59:59.000Z

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