Now showing items 451-460 of 460

  • Validating the Rice neural network and the Wing Kp real-time models 

    Bala, Ramkumar; Reiff, Patricia (2014)
    The Rice neural network models of Kp have been running in real time at since October 2007; Dst and AE models were added to our operations in May 2010. All these models use the ...
  • Velocity Relaxation in a Strongly Coupled Plasma 

    Bannasch, G.; Castro, J.; McQuillen, P.; Pohl, T.; Killian, T.C. (2012-11-02)
    Collisional relaxation of Coulomb systems is studied in the strongly coupled regime. We use an optical pump-probe approach to manipulate and monitor the dynamics of ions in an ultracold neutral plasma, which allows direct ...
  • Vertical and in-plane heterostructures from WS2/MoS2 monolayers 

    Gong, Yongji; Lin, Junhao; Wang, Xingli; Shi, Gang; Lei, Sidong; Lin, Zhong; Zou, Xiaolong; Ye, Gonglan; Vajtai, Robert; Yakobson, Boris I.; Terrones, Humberto; Terrones, Mauricio; Tay, Beng Kang; Lou, Jun; Pantelides, Sokrates T.; Liu, Zheng; Zhou, Wu; Ajayan, Pulickel M. (2014)
    Layer-by-layer stacking or lateral interfacing of atomic monolayers has opened up unprecedented opportunities to engineer two-dimensional heteromaterials. Fabrication of such artificial heterostructures with atomically ...
  • Volcano-shape glycerol oxidation activity of palladium-decorated gold nanoparticles 

    Zhao, Zhun; Arentz, Joni; Pretzer, Lori A.; Limpornpipat, Pongsak; Clomburg, James M.; Gonzalez, Ramon; Schweitzer, Neil M.; Wu, Tianpin; Miller, Jeffrey T.; Wong, Michael S. (2014)
    Bimetallic PdAu catalysts are more active than monometallic ones for the selective oxidation of alcohols, but the reasons for improvement remain insufficiently detailed. A metal-on-metal material can probe the structure–catalysis ...
  • Voltage tuning of vibrational mode energies in single-molecule junctions 

    Li, Yajing; Doak, Peter; Kronik, Leeor; Neaton, Jeffrey B.; Natelson, Douglas (2014)
    Vibrational modes of molecules are fundamental properties determined by intramolecular bonding, atomic masses, and molecular geometry, and often serve as important channels for dissipation in nanoscale processes. Although ...
  • The Weil-Peterson Hessian of Length on Teichmuller Space 

    Wolf, Michael (2012)
    We present a brief but nearly self-contained proof of a formula for the Weil-Petersson Hessian of the geodesic length of a closed curve (either simple or not simple) on a hyperbolic surface. The formula is the sum of ...
  • Whole Genome Sequencing of Mutation Accumulation Lines Reveals a Low Mutation Rate in the Social Amoeba Dictyostelium discoideum 

    Saxer, Gerda; Havlak, Paul; Fox, Sara A.; Quance, Michael A.; Gupta, Shara; Fofanov, Yuriy; Strassmann, Joan E.; Queller, David C. (2012-10-08)
    Spontaneous mutations play a central role in evolution. Despite their importance, mutation rates are some of the most elusive parameters to measure in evolutionary biology. The combination of mutation accumulation (MA) ...
  • Why hydrocarbon-cross-linked peptides are membrane permeable 

    Sun, Tzu-Lin; Lee, Chang-Chun; Sun, Yen; Huang, Huey W. (2012)
  • XTH31, Encoding an in Vitro XEH/XET-Active Enzyme, Regulates Aluminum Sensitivity by Modulating in Vivo XET Action, Cell Wall Xyloglucan Content, and Aluminum Binding Capacity in Arabidopsis 

    Zhu, Xiao Fang; Shi, Yuan Zhi; Lei, Gui Jie; Fry, Stephen C.; Zhang, Bao Cai; Zhou, Yi Hua; Braam, Janet; Jiang, Tao; Xu, Xiao Yan; Mao, Chuan Zao; Pan, Yuan Jiang; Yang, Jian Li; Wu, Ping; Zheng, Shao Jian (2012-11)
    Xyloglucan endohydrolase (XEH) and xyloglucan endotransglucosylase (XET) activities, encoded by xyloglucan endotransglucosylase-hydrolase (XTH) genes, are involved in cell wall extension by cutting or cutting and rejoining ...
  • β-YbAlB4: A Critical Nodal Metal 

    Ramires, Aline; Coleman, Piers; Nevidomskyy, Andriy H.; Tsvelik, A. M. (2012-10)
    We propose a model for the intrinsic quantum criticality of β-YbAlB4, in which a vortex in momentum space gives rise to a new type of Fermi surface singularity. The unquenched angular momentum of the |J=7/2,mJ=±5/2⟩ Yb 4f ...