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Honeycomb Arrays [PDF]

open access: yesThe 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 ...
Blackburn, Simon R.   +3 more
openaire   +5 more sources

Numerical analysis of the behavior of a three-layer honeycomb panel with interlayer defects under action of dynamic load

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2021
The aim of the work is to study the effect of interlayer defects of the bundle type on the behavior of a rectangular flat three-layer panel with a honeycomb filler under the influence of a dynamic impact load. Methods.
Aleksandr L. Medvedskiy   +3 more
doaj   +1 more source

Triply periodic minimal surfaces based honeycomb structures with tuneable mechanical responses

open access: yesVirtual and Physical Prototyping, 2023
We proposed a novel class of honeycomb structures inspired by triply periodic minimal surfaces (TPMS) architecture with tuneable mechanical responses.
Chenxi Peng, Pier Marzocca, Phuong Tran
doaj   +1 more source

Analytical model of laminar composites having fibre reinforced polyester faces and a polypropylene honeycomb core; experimental testing of the model; pp. 245–251 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2012
Experimental study of deformation behaviour of sandwich structures with a honeycomb core in the cases of quasi-static loading was carried out. The object of investigation was the static bending of the sandwich composite used for safety important ...
Daiva Zeleniakiene   +2 more
doaj   +1 more source

Free Vibration Characteristics of Multi-Material Lattice Structures

open access: yesVibration, 2023
This paper presents a modal analysis of honeycomb and re-entrant lattice structures to understand the change in natural frequencies when multi-material configuration is implemented.
Kadir Gunaydin, Ahmet Yavuz, Aykut Tamer
doaj   +1 more source

Evaluation of a lattice structure for a motor holder [PDF]

open access: yesJournal of Intelligent Manufacturing and Special Equipment, 2021
Purpose – The aim of this research paper is to design a motor holder in order to minimize the weight of the motor and to reduce its vibrations causing noise pollution.
Chloé Joffre
doaj   +1 more source

Impact of Airflow Rectification on Spreading Uniformity for UAV-Based Multichannel Pneumatic Granular Fertilizer Spreader

open access: yesAgronomy, 2023
Unmanned aerial vehicles (UAVs) are an important part of smart farms and have been widely used in granular fertilizer spreading. The multichannel pneumatic granular fertilizer spreader (MPGFS) has the advantages of light weight and precision spreading ...
Xunwei Wang   +4 more
doaj   +1 more source

Experimental Investigation on the Fatigue Behavior on Honeycomb Sandwich Composite Panels

open access: yesTikrit Journal of Engineering Sciences, 2023
This paper aims to study the dynamic behaviors of particular sandwich panels manufactured using three specifications of aluminum honeycomb core with fiberglass or aluminum face-sheet materials. Three groups of panels were designed and manufactured, each
Ahmed Ali Khalid   +2 more
doaj   +1 more source

Analytical Scheme for Simultaneous Determination of Phthalates and Bisphenol A in Honey Samples Based on Dispersive Liquid–Liquid Microextraction Followed by GC-IT/MS. Effect of the Thermal Stress on PAE/BP-A Levels

open access: yesMethods and Protocols, 2020
In this paper, an analytical protocol was developed for the simultaneous determination of phthalates (di-methyl phthalate DMP, di-ethyl phthalate DEP, di-isobutyl phthalate DiBP, di-n-butyl phthalate DBP, bis-(2-ethylhexyl) phthalate DEHP, di-n-octyl ...
Ivan Notardonato   +5 more
doaj   +1 more source

Designing and modeling new generation of advanced hybrid composite sandwich structure armors for ballistic threats in defense applications

open access: yesAIMS Materials Science, 2020
Composite sandwich structures under ballistic impact loading can be a key point in the design for defense applications. This paper presents new armor designs consist of two composite plates with honeycomb core subjected to ballistic impact via 0.3 ...
Ruaa Al-Mezrakchi   +2 more
doaj   +1 more source

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