Results 11 to 20 of about 35,758 (265)
The Electronic Journal of Combinatorics, 2010 A honeycomb array is an analogue of a Costas array in the hexagonal grid; they were first studied by Golomb and Taylor in 1984. A recent result of Blackburn, Etzion, Martin and Paterson has shown that (in contrast to the situation for Costas arrays) there are only finitely many examples of honeycomb arrays, though their bound on the maximal size of a ...
Simon R. Blackburn +3 more
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Superdiffusion in a honeycomb billiard [PDF]
Physical Review E, 2006 We investigate particle transport in the honeycomb billiard that consists of connected channels placed on the edges of a honeycomb structure. The spreading of particles is superdiffusive due to the existence of ballistic trajectories which we term perfect paths. Simulations give a time exponent of 1.72 for the mean square displacement and a starlike, i.
Schmiedeberg, M., Stark, H.
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The cosmological principle and honeycombs [PDF]
Classical and Quantum Gravity, 2004 We present the possibility that the gravitational growth of primordial density fluctuations leads to what can be considered a week version of the cosmological principle. The large scale mass distribution associated with this principle must have the geometrical structures known as a regular honeycombs.
Criado, C., Alamo, N.
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Honeycombs for Hall Polynomials [PDF]
The Electronic Journal of Combinatorics, 2020 We propose a new formulation of Hall polynomials in terms of honeycombs, which were previously introduced in the context of the Littlewood–Richardson rule. We prove a Pieri rule and associativity for our honeycomb formula, thus showing equality with Hall polynomials.
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Design and Investigation of Honeycomb End Plates for PEM Fuel Cells [PDF]
Hydrogen, Fuel Cell & Energy Storage, 2018 In this article a new structure of PEM fuel cell end plate is presented. The new structure is known as a honeycomb sandwich panel. Several properties of the presented structure, such as mechanical and thermal behavior, as well as its advantages and ...
Mostafa Habibnia +2 more
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Experimental testing in 3-point bending of sandwich beams using additively manufactured loading bars [PDF]
INCAS BulletinThis study investigates the feasibility of custom-made 3D-printed loading bars of a testing machine and compares their performance to that of standard (metal) components through the 3-point bending testing of sandwich beams.
Andrei NENCIU +2 more
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Journal of Marine Science and Engineering, 2022 Traditional concrete revetments can destroy the ecological environment and the water landscape. An increasing number of ecological revetment structures have been applied in coastal, lake, and river regulation projects.
Jinfeng Zhang +5 more
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The Honeycomb Conjecture [PDF]
Discrete & Computational Geometry, 2001 The classical honeycomb conjecture asserts that any partition of the plane into regions of equal area has perimeter at least that of the regular hexagonal honeycomb tiling. Pappus discusses this problem in his preface to Book V. This paper gives the first general proof of the conjecture.
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International Journal of Solids and Structures, 2015 Small and large deformation in-plane elastic response of a new class of hierarchical fractal-like honeycombs inspired by the topology of the “spiderweb” were investigated through analytical modeling, detailed numerical simulations, and mechanical testing.
Mousanezhad, D. +6 more
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Julius-Kühn-Archiv, 2016 Oregano (Origanum vulgare) is one of the most commercially valued species with remarkable biological properties, while its world trade and consumption is steadily increased.
Sarrou, Eirini +3 more
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