Results 1 to 10 of about 325,839 (152)

Preparation of hexagonal iron flakes with a hexagonal structure on the sublayer of copper oxides [PDF]

open access: yesDiscover Nano
The stabilization of hexagonal close-packed (hcp) iron at ambient conditions remains a significant challenge due to its metastable nature. Here, we report a novel and facile strategy for templating the epitaxial growth of hcp-Fe flakes using tailored ...
S. S. Parhizgar, Z. Ardeshiri
doaj   +2 more sources

Coverage Area Maximization Using MOFAC-GA-PSO Hybrid Algorithm in Energy Efficient WSN Design

open access: yesIEEE Access, 2023
Coverage area optimization is always a challenging task to configure an efficient Wireless Sensor Network (WSN). This article proposes an energy-efficient coverage area optimization technique of WSN using a novel hybrid algorithm, called MOFAC-GA-PSO ...
Sudip Kumar De   +4 more
doaj   +1 more source

Characterization of Nickel Oxide Nanoparticles Synthesized under Low Temperature

open access: yesMicromachines, 2021
In this study, ultrafine nickel oxide nanoparticles (NiO NPs) were well synthesized using a simple wet chemical method under low temperature, 300 °C. An Ni(OH)2 precursor was well precipitated by dropping NH4OH into an Ni(Ac)2 solution.
Sung-Jei Hong   +3 more
doaj   +1 more source

Finite Element Analysis Study on Lattice Structure Fabricated Using Corn Husk Fibre Reinforced Recycled Polystyrene Composite [PDF]

open access: yesMATEC Web of Conferences, 2021
This research investigated the lattice structure fabricated using corn husk fibre reinforced recycled polystyrene composite using Finite Element Analysis (FEA). The material’s properties of this composite material were obtained from previous study. Then,
Sulaiman Mohammed Shariff Mohamed   +5 more
doaj   +1 more source

Synthesis and Charactrization of ZnO Nanoparrticles with Different Morphology and their Structural Properties [PDF]

open access: yesشیمی کاربردی روز, 2014
In this paper, Zinc Oxide nanoparticles are prepared by direct precipitation method. The ZnO nanoparticles are obtained after calcinations of precursor at 250˚C for 2h. Resulted nanoparticles by this method have hexagonal structure.
Reza Moradi   +2 more
doaj   +1 more source

Topological study about failure behavior and energy absorption of honeycomb structures under various strain rates

open access: yesDefence Technology, 2023
High-speed impact threats and terrorist actions on the battlefield require the development of more effective protective materials and structures, and various protective structure is designed according their energy-absorbing characteristics.
Yu-chen Wei   +6 more
doaj   +1 more source

Efficient Digital Watermark key Generation Using Hexagonal Structure and parametric Lagrange Curve [PDF]

open access: yesEngineering and Technology Journal, 2015
Digital watermarking provides copyright protection for digital image by hiding appropriate information in the original image. Hence copyright protection has become essential to avoid unauthorized replication problem.
Hala Bahjat Abdul Wahab   +1 more
doaj   +1 more source

The Negative Poisson’s Ratio Ship Base Design and Vibration Isolation Performance Analysis

open access: yesApplied Sciences, 2021
This paper mainly studies the vibration isolation of negative Poisson’s ratio structure in the honeycomb base of ships. Based on the structure of the negative Poisson’s ratio structure, different laying methods and different cell structure are used to ...
Kun Pan   +3 more
doaj   +1 more source

The Broadband low-frequency sound absorption via a hexagonal acoustic metamaterial in the honeycomb structure

open access: yesKuwait Journal of Science, 2022
We proposed a low-frequency absorber comprised of a hexagonal honeycomb structure is presented and demonstrated. The acoustic metamaterial of the hexagonal honeycomb structure with different folding numbers n is investigated via finite element ...
Fatma Nafaa
doaj   +1 more source

Lattice Imaging of Self-Assembled Monolayers of Partially Fluorinated Disulfides and Thiols on Sputtered Gold by Atomic Force Microscopy [PDF]

open access: yes, 1997
The structure of self-assembled monolayers (SAMs) of various fluorinated disulfides, perfluoroalkylamide thiols, and a mixed alkyl perfluoroalkylamide disulfide on sputtered gold was studied by atomic force microscopy (AFM).
Schönherr, H., Vancso, G.J.
core   +7 more sources

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