Results 41 to 50 of about 6,990 (214)

Modular Design of Hexagonal Phased Arrays Through Diamond Tiles [PDF]

IEEE Transactions on Antennas and Propagation, 2020
The modular design of planar phased array antennas with hexagonal apertures is addressed by means of innovative diamond-shaped tiling techniques. Both tiling configuration and subarray coefficients are optimized to fit user-defined power-mask constraints on the radiation pattern.
Rocca P., Anselmi N., Polo A., Massa A.
openaire   +3 more sources

On‐Surface Indigo‐Based Bimolecular Coordination Networks with Programmable Regular or Vitreous Structure

Advanced Functional Materials, EarlyView.
A previously unreported coordination motif stabilising single Fe atoms by indigo chelation and pyridyl coordination on Au(111) has been revealed. By using planar tritopic pyridyl linkers (TPyB), extended 2D porous networks of indigo3(TPyB)2Fe6 form. These networks can be crystalline or vitreous and offer an environment where individual coordination ...
Hongxiang Xu, Ritam Chakraborty, Biao Yang, Dennis Meier, Joachim Reichert, Svetlana Klyatskaya, Mario Ruben, Shobhana Narasimhan, Johannes V. Barth, Anthoula C. Papageorgiou   +9 more
wiley   +1 more source

Emergent hexagonal tiling order in a glassy lattice model

Open Physics
A lattice gas model with short-range interactions is considered in this paper. Through Monte Carlo simulations, it was found that the system shows glassy relaxation behaviors.
Li Minggao
doaj   +1 more source

Constructing practical Fuzzy Extractors using QIM [PDF]

, 2007
Fuzzy extractors are a powerful tool to extract randomness from noisy data. A fuzzy extractor can extract randomness only if the source data is discrete while in practice source data is continuous.
Buhan, Ileana, Doumen, Jeroen, Hartel, Pieter, Veldhuis, Raymond   +3 more
core   +2 more sources

Structure and dynamics of topological defects in a glassy liquid on a negatively curved manifold [PDF]

, 2010
We study the low-temperature regime of an atomic liquid on the hyperbolic plane by means of molecular dynamics simulation and we compare the results to a continuum theory of defects in a negatively curved hexagonal background.
D. Hilbert, D. R. Nelson, D. R. Nelson, David R. Nelson, François Sausset, Gilles Tarjus, H. S. M. Coxeter, J. J. Thomson   +7 more
core   +2 more sources

Golden‐Ratio–Guided Aperiodic Architected Metamaterials with Simultaneously Enhanced Strength and Toughness

Advanced Functional Materials, EarlyView.
Guided by the golden ratio, a class of aperiodic architected metamaterials is introduced to address the intrinsic trade‐off between strength and toughness. By unifying local geometric heterogeneity with global order, the golden‐ratio‐guided aperiodic architecture promotes spatial delocalization of damage tolerence regions, leading to more tortuous ...
Junjie Deng, Xinxin Wang, Ruochao Zhao, Zhendong Li, Kai Liu, Ke Yuan, Jia An, Xinwei Li, Chee Kai Chua, Zhonggang Wang   +9 more
wiley   +1 more source

Creating 3D texture tessellation on planar surface using a single tile or a few tiles

Frontiers of Architectural Research
Tessellations have been widely used in architectural designs to create visually striking surfaces by repeating a small number of elements. While there has been extensive research on 2D tiling over the past 2000 years, this study focuses on the systematic
Anooshe Rezaee Javan, Ahmed Abdelaal, Yi Min Xie   +2 more
doaj   +1 more source

Quivers, Tilings, Branes and Rhombi

, 2005
We describe a simple algorithm that computes the recently discovered brane tilings for a given generic toric singular Calabi-Yau threefold. This therefore gives AdS/CFT dual quiver gauge theories for D3-branes probing the given non-compact manifold.
A. Butti, A. Hanany, A. Hanany, A. Hanany, A. Hanany, A. Hanany, A. Hanany, Amihay Hanany, B. Feng, B. Feng, B. Feng, B. Feng, B. Feng, B. Feng, B.S. Acharya, C.E. Beasley, C.P. Herzog, C.P. Herzog, D. Berenstein, D.R. Morrison, David Vegh, E. Witten, G. Pick, J.M. Maldacena, M. Cvetic, M.R. Douglas, N.C. Leung, O. Aharony, P.B. Kronheimer, P.S. Aspinwall, P.S. Aspinwall, P.S. Aspinwall, R. J. Duffin, R. Kenyon, R. Kenyon, R. Kenyon, S. Benvenuti, S. Benvenuti, S. Franco, S. Franco, S. Franco, S. Franco, S. Franco ., W. Fulton   +43 more
core   +2 more sources

Anti‐Slip Material‐Based Strategies and Approaches

Advanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani, Carlo Antonini, Teresa Gatti, Mengjiao Wang   +3 more
wiley   +1 more source

Flip dynamics in octagonal rhombus tiling sets

, 2002
We investigate the properties of classical single flip dynamics in sets of two-dimensional random rhombus tilings. Single flips are local moves involving 3 tiles which sample the tiling sets {\em via} Monte Carlo Markov chains.
C. L. Henley, C. L. Henley, D. Aldous, D. Caillard, E. J. Gumbel, H. Cohn, M. Latapy, M. Widom, N. Destainville, N. Destainville, N. Destainville, N. G. de Bruijn, P. A. Kalugin, R. Mosseri, R. Penrose   +14 more
core   +1 more source