Results 81 to 90 of about 1,268,311 (320)

A principle of economy predicts the functional architecture of grid cells

eLife, 2015
Grid cells in the brain respond when an animal occupies a periodic lattice of ‘grid fields’ during navigation. Grids are organized in modules with different periodicity.
Xue-Xin Wei, Jason Prentice, Vijay Balasubramanian   +2 more
doaj   +1 more source

The hybrid grid implemented DSMC method used in 2D triangular micro cavity flows [PDF]

, 2011
This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
3rd Micro and Nano Flows Conference (MNF2011), Şengil, N   +1 more
core  

Modeling Pedestrian Dynamics on Triangular Grids

Transportation Research Procedia, 2014
AbstractWe study the modeling of pedestrian dynamics on triangular grids. We consider the cases both with and without orientation. The geometry of a path with orientation may be represented by a special triangular grid with a continuously reducing number of grid cells in the inner side.
Chen, Minjie, Bärwolff, Günter, Schwandt, Hartmut   +2 more
openaire   +1 more source

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source

Microscopic Insights into Magnetic Warping and Time‐Reversal Symmetry Breaking in Topological Surface States of Rare‐Earth‐Doped Bi2Te3

Advanced Materials, EarlyView.
Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano, Fabián Calleja, Ji Dai, Massimo Tallarida, Vera Marinova, Alessandro Barla, Marc G. Cuxart, Pierluigi Gargiani, Gonzalo N. Molina, José Angel Silva‐Guillén, Adriana I. Figueroa, Kevin García‐Díez, Sergio O. Valenzuela, Aitor Mugarza, Amadeo L. Vázquez de Parga, Rodolfo Miranda, Francisco Guinea, Manuela Garnica, Miguel A. Valbuena   +18 more
wiley   +1 more source

Vortex Lattice Melting in 2D Superconducting Networks and Films

, 1994
We carry out MC studies of 2D superconducting networks, in an applied magnetic field, for square and honeycomb geometries. We consider both dilute systems (f=1/q) and systems near full frustration (f=1/2-1/q).
A. H. Macdonald, A. M. Ferrenberg, A. P. Young, A. Vallat, B. A. Huberman, B. I. Halperin, B. I. Halperin, B. I. Halperin, C. J. Lobb, C. J. Lobb, D. B. Nicolaides, D. R. Nelson, D. R. Nelson, D. S. Fisher, D. S. Fisher, E. Brézin, E. Fradkin, E. K. F. Dang, G. Ramirez Santiago, G. Ramirez Santiago, G. S. Grest, G. S. Grest, H. A. Rijken, H. A. Rijken, I. F. Herbut, J. A. O'Neill, J. A. O'Neill, J. Lee, J. Lee, J. M. Caillol, J. M. Kosterlitz, J. P. Straley, J. P. Straley, J. Pearl, J. R. Lee, J. R. Lee, J. V. José, J. Villain, L. D. Landau, L. I. Glazman, M. A. Moore, M. Franz, M. Franz, M. R. Kolachi, M. S. Rzchowski, M. Tinkham, M. Y. Choi, N. D. Mermin, P. Martinoli, P. Minnhagen, P. Minnhagen, Ph. Choquard, R. Theron, R. Théron, R. Šášik, S. Doniach, S. Hattel, S. Hikami, S. Teitel, S. Teitel, S. Teitel, S. Teitel, T. C. Halsey, T. C. Halsey, T. Ohta, W. Y. Shih, Y. H. Li, Y. H. Li, Y. Kato, Y. Kato, Z. Tešanović   +70 more
core   +2 more sources

On identification in the triangular grid

Journal of Combinatorial Theory, Series B, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Honkala, Iiro, Laihonen, Tero
openaire   +1 more source

Resolving the Structural Duality of Graphene Grain Boundaries

Advanced Materials, EarlyView.
Cantilever ncAFM resolves the atomic structure of grain boundaries in graphene, revealing coexisting stable and metastable types. Both contain pentagon/heptagon defects, but metastable GBs show irregular geometries. Modeling shows metastable GBs form under compression, exhibiting vertical corrugation, while stable GBs are flat.
Haojie Guo, Emiliano Ventura‐Macías, Mariano D. Jiménez‐Sánchez, Nicoleta Nicoara, Pierre Mallet, Jean‐Yves Veuillen, Vincent T. Renard, Antonio J. Martínez‐Galera, Pablo Pou, Julio Gómez‐Herrero, Rubén Pérez, Iván Brihuega   +11 more
wiley   +1 more source

Exceptional times for percolation under exclusion dynamics

, 2019
We analyse in this paper a conservative analogue of the celebrated model of dynamical percolation introduced by H\"aggstr\"om, Peres and Steif in [HPS97]. It is simply defined as follows: start with an initial percolation configuration $\omega(t=0)$. Let
Garban, Christophe, Vanneuville, Hugo
core   +3 more sources

Tuning Amorphous‐Crystalline Catalytic Interfaces by Mechanochemistry: Cu‐Based Metallic Glasses Coupled with Ceria for CO Oxidation

Advanced Materials, EarlyView.
Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim, Mehran Nabahat, Laia Pascua‐Solé, Isabel Serrano, Ilaria Lucentini, Xènia Garcia, Marina Armengol‐Profitós, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Núria J. Divins, Ignacio J. Villar‐Garcia, Virginia Pérez‐Dieste, Carlos Escudero, Carlo Marini, Jordi Llorca, Eloi Pineda, Pere Bruna, Lluís Soler   +17 more
wiley   +1 more source