Now showing items 1-20 of 803

    • Preparation and Characterization of Hybrid Conducting Polymer–Carbon Nanotube Yarn 

      Foroughi, Javad; Spinks, Geoffrey M.; Ghorbani, Shaban R.; Kozlov, Mikhail E.; Safaei, Farzad; Peleckis, Germanas; Wallace, Gordon G.; Baughman, Ray H. (2011-12-16)
      Hybrid polypyrrole (PPy)-multi walled carbon nanotube(MWNT) yarns were obtained by chemical and electrochemical polymerization of pyrrole on the surface and within the porous interior of twisted MWNT yarns. The material ...
    • Shock Fronts, Electron-Ion Equilibration and Intracluster Medium Transport Processes in the Merging Cluster Abell 2146 

      Russell, H. R.; Mcnamara, B. R.; Sanders, J. S.; Fabian, A. C.; Nulsen, P. E. J.; Canning, R. E. A.; Baum, S. A.; Donahue, M.; Edge, A. C.; King, Lindsay J.; O'Dea, C. P. (2012-02)
      We present a new 400-ks Chandra X-ray observation of the merging galaxy cluster Abell 2146. This deep observation reveals detailed structure associated with the major merger event including theMach numberM =2.3±0.2 bowshock ...
    • Refractive Convergent Plasma Lenses Explain Extreme Scattering Events and Pulsar Scintillation 

      Pen, Ue-Li; King, Lindsay J. (2012-02-27)
      We propose convergent plasma lenses, possibly from current sheets, as a generic solution to strong interstellar scattering. These lenses resolve the overpressure problem by geometric alignment as noted by Goldreich & ...
    • Regulation of Morphogenesis and Neural Differentiation of Human Mesenchymal Stem Cells Using Carbon Nanotube Sheets 

      Kim, Jeong Ah; Jang, Eui Yun; Kang, Tae June; Yoon, Sungjun; Ovalle-Robles, Raquel; Rhee, Won Jong; Kim, Taewoo; Baughman, Ray H.; Kim, Yong Hyup; Park, Tai Hyun (2012-04-02)
      In order to successfully utilize stem cells for therapeutic applications in regenerative medicine, efficient differentiation into a specific cell lineage and guidance of axons in a desired direction is crucial. Here, we ...
    • Terahertz Surface Plasmon Polaritons on Freestanding Multi-Walled Carbon Nanotube Aerogel Sheets 

      Nguyen, T. D.; Liu, S.; Lima, Marcio Dias; Fang, Shaoli; Baughman, Ray H.; Nahata, A.; Vardeny, Z. V. (2012-05-08)
      We demonstrate that multi-walled carbon nanotubes (MWCNTs) are capable of supporting surface plasmon-polaritons (SPPs) at terahertz (THz) frequencies. To achieve this, we fabricated sub-100 μm-thick freestanding and highly ...
    • Cross Sections for the Reactions e⁺e⁻ → K⁺ K⁻ π⁺π⁻, K⁺ K⁻ π⁰π⁰, and K⁺ K⁻K⁺ K⁻ Measured Using Initial-State Radiation Events 

      Lees, J. P.; Poireau, V.; Prencipe, E.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Izen, Joseph M.; Lou, Xinchou; BaBar Collaboration (Amer Physical Soc, 2012-07-26)
      We study the processes e⁺e⁻ → K⁺ K⁻ π⁺π⁻γ, K⁺ K⁻ π⁰π⁰γ, and K⁺ K⁻ K⁺ K⁻ γ, where the photon is radiated from the initial state. About 84000, 8000, and 4200 fully reconstructed events, respectively, are selected from ...
    • Searching for Majorana Fermions in 2D Spin-Orbit Coupled Fermi Superfluids at Finite Temperature 

      Gong, Ming; Chen, G.; Jia, S.; Zhang, Chuanwei (2012-09-05)
      Recent experimental breakthroughs in realizing spin-orbit (SO) coupling for cold atoms have spurred considerable interest in the physics of two-dimensional SO coupled Fermi superfluids, especially topological Majorana ...
    • Evidence for an excess of B̄ → D^(*)_τ⁻ ν̅_τ decays 

      Lees, J. P.; Poireau, V.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Palano, A.; Eigen, G.; Izen, Joseph M.; Lou, Xinchou; BaBar Collaboration (Amer Physical Soc, 2012-09-06)
      Based on the full BABAR data sample, we report improved measurements of the ratios R(D^( *) = ℬ(B̄→D^( *)τ -ν {̄τ}) / ℬ(B̄→D^( *)ℓe̅ν ̅ℓ), where ℓ is either e or μ. These ratios are sensitive to new physics contributions ...
    • A New Catalyst-Embedded Hierarchical Air Electrode For High-Performance Li-O₂ Batteries 

      Lim, H. -D; Song, H.; Gwon, H.; Park, K. -Y; Kim, J.; Bae, Y.; Kim, H.; Jung, S. -K; Kim, T.; Kim, Y. H.; Lepr©, Xavier; Ovalle-Robles, Raquel; Baughman, Ray H.; Kang, K. (2013-06-05)
      The Li-O₂ battery holds great promise as an ultra-high-energy- density device. However, its limited rechargeability and low energy efficiency remain key barriers to its practical application. Herein, we demonstrate that ...
    • Blue Light Emitting Electrochemical Cells Incorporating Triazole-based Luminophores 

      Fernández-Hernández, Jesús M.; Ladouceur, S.; Shen, Y.; Iordache, A.; Wang, X.; Donato, L.; Gallagher-Duval, S.; de Anda Villa, Manuel; Slinker, Jason D.; De Cola, L.; Zysman-Colman, E. (2013-09-20)
      We report the electrochemical, photoluminescence, and electroluminescence properties of four fluorinated cationic iridium complexes bearing pyridyltriazole ancillary ligands. All the complexes display unstructured emission ...
    • Conductive Functional Biscrolled Polymer and Carbon Nanotube Yarns 

      Kim, S. H.; Sim, H. J.; Shin, M. K.; Choi, A. Y.; Kim, Y. T.; Lima, Marcio D.; Baughman, Ray H.; Kim, S. J. (2013-10-10)
      Biscrolling aligned electrospun fiber (AEF) sheets and carbon nanotube (CNT) sheets were fabricated for conductive, functional yarns by a versatile dry composite method. Our biscrolling (twist-based spinning) method is ...
    • Testing Metallicity Indicators at Z ~ 1.4 with the Gravitationally Lensed Galaxy CASSOWARY 20* 

      James, Bethan L.; Pettini, Max; Christensen, Lise; Auger, Matthew W.; Becker, George D.; King, Lindsay J.; Quider, Anna M.; Shapley, Alice E.; Steidel, Charles C. (Oxford University Press, 2014-03-27)
      We present X-shooter observations of CASSOWARY 20 (CSWA 20), a star-forming (SFR ~ 6 M⊙ yr⁻¹) galaxy at z = 1.433, magnified by a factor of 11.5 by the gravitational lensing produced by a massive foreground galaxy at z = ...
    • Experience, Learning, and Returns to Scale 

      Arce M., Daniel G. (Univ North Carolina, 2014-04)
      The experience curve is a tool for forecasting future decreases in average cost as a function of cumulative output/volume. The extent of an experience effect has profound implications for both pricing strategy and the focus ...
    • Effects of Nanostructure Geometry on Nanoimprinted Polymer Photovoltaics 

      Yang, Yi; Mielczarek, Kamil; Aryal, Mukti; Zakhidov, Anvar A.; Hu, Wenchuang (Walter) (RSC Pub, 2014-04-23)
      We demonstrate the effects of nanostructure geometry on the nanoimprint induced poly(3-hexylthiophene-2,5-diyl) (P3HT) chain alignment and the performance of nanoimprinted photovoltaic devices. Out-of-plane and in-plane ...
    • Cross sections for the reactions e⁺e⁻→ K_s^0 K_L^0, K_s^0 K_L^0 π⁺π⁻, K_s^0 K_s^0 π⁺π⁻, K_s^0 K_s^0 K⁺ K⁻ from events with initial-state radiation 

      Lees, J. P.; Poireau, V.; Tisserand, V.; Grauges, E.; Palano, A.; Eigen, G.; Stugu, B.; Izen, Joseph M.; Lou, Xinchou (American Physical Society, 2014-05-06)
      We study the processes e⁺e⁻ → K_s^0 K_L^0γ, K_s^0 K_L^0π⁺π⁻γ, K_s^0 K_s^0 π⁺ π⁻ γ, K_s^0 K_s^0 K⁺ K⁻ γ, where the photon is radiated from the initial state. providing cross section measurements for the hadronic states over ...
    • Dalitz Plot Analysis of η_c → K⁺K⁻η and η_c → K⁺K⁻π⁰ in Two-Photon Interactions 

      Lees, J. P.; Poireau, V.; Tisserand, V.; Grauges, E.; Palano, A.; Eigen, G.; Stugu, B.; Izen, Joseph M.; Lou, Xinchou (American Physical Society, 2014-06-16)
      We study the processes γγ→K⁺K⁻η and γγ→K⁺K⁻π⁰ using a data sample of 519 fb⁻¹ recorded with the BABAR detector operating at the SLAC PEP-II asymmetric-energy e⁺e⁻ collider at center-of-mass energies at and near the Υ(nS) ...
    • Electron and Photon Energy Calibration with the ATLAS Detector using LHC Run 1 Data 

      Aad, G.; Abbott, B.; Abdallah, J.; Abdel Khalek, S.; Abdinov, O.; Aben, R.; Abi, B.; Izen, Joseph M.; Leyton, Michael; Lou, Xinchou; Namasivayam, Harisankar; Reeves, Kendall; ATLAS Collaboration (Springer New York LLC, 2014-10-01)
      This paper presents the electron and photon energy calibration achieved with the ATLAS detector using about 25 fb⁻¹ of LHC proton−proton collision data taken at centre-of-mass energies of √s = 7 and 8 TeV. The reconstruction ...
    • Dalitz Plot Analyses of B⁰ → D⁻D⁰K⁺ and B⁺ → D̅⁰D⁰K⁺ Decays 

      Lees, J. P.; Poireau, V.; Tisserand, V.; Grauges, E.; Palano, A.; Eigen, G.; Stugu, B.; Izen, Joseph M.; Lou, Xinchou; BaBar Collaboration (American Physical Society, 2015-03-02)
      We present Dalitz plot analyses for the decays of B mesons to D⁻D⁰K⁺ and D̅⁰D⁰K⁺. We report the observation of the D*{s1} (2700)⁺ resonance in these two channels and obtain measurements of the mass M(D*{s1} (2700)⁺) = ...
    • Measurement of the Top-Quark Mass in the Fully Hadronic Decay Channel from ATLAS Data at √s=7 TeV 

      Aad, G.; Abbott, B.; Abdallah, J.; Abdel Khalek, S.; Abdinov, O.; Aben, R.; Abi, B.; Izen, Joseph M.; Leyton, Michael; Lou, Xinchou; Namasivayam, Harisankar; Reeves, Kendall; ATLAS Collaboration (Springer, 2015-04-01)
      The mass of the top quark is measured in a data set corresponding to 4.6 fb⁻¹ of proton-proton collisions with centre-of-mass energy √s = 7 TeV collected by the ATLAS detector at the LHC. Events consistent with hadronic ...
    • Measurement of γCP in D⁰-D̅⁰ Oscillation using Quantum Correlations in e⁺e⁻ → D⁰-D̅⁰ at √s = 3.773 GeV 

      Ablikim, M.; Achasov, M. N.; Ai, X. C.; Albayrak, O.; Albrecht, M.; Ambrose, D. J.; Amoroso, A.; Lou, Xinchou (Elsevier, 2015-04-09)
      We report a measurement of the parameter (γCP) in D⁰-D̅⁰ oscillations performed by taking advantage of quantum coherence between pairs of D⁰-D̅⁰ mesons produced in e⁺e⁻ annihilations near threshold. In this work, doubly-tagged ...