Results 11 to 20 of about 9,422,830 (251)

Optimal design of a composite wing structure for a flying-wing aircraft subject to multi-constraint [PDF]

open access: yes, 2012
This thesis presents a research project and results of design and optimization of a composite wing structure for a large aircraft in flying wing configuration.
Xu, Rongxin.
core   +4 more sources

Experimental and Numerical Estimation of the Aerodynamic Forces Induced by the Wind Acting on a Fast-Erecting Crane

open access: yesApplied Sciences, 2023
The current work concerns the problem of estimating the aerodynamic forces and moments induced by the wind on the fast-erecting 63K crane by Liebherr. In the first step, scaled sectional models of the tower truss and horizontal jib truss are prepared for
Marcin Augustyn   +3 more
doaj   +1 more source

A Novel Hierarchically Lightweight Porous Carbon Derived from Egg White for Strong Microwave Absorption

open access: yesEngineering, 2022
Egg custard is a common dish on the dining table and exhibits a uniform porous structure after freeze-drying. The protein within egg custard is a rich source of carbon and nitrogen, and the custard’s unique microstructure and adjustable electrical ...
Zonglin Liu   +4 more
doaj   +1 more source

A compact multifunctional metastructure for Low-frequency broadband sound absorption and crash energy dissipation

open access: yesMaterials & Design, 2022
Sound absorption structures, as an effective approach to reducing sound radiation, have always received extensive attention in the engineering of vibration and noise reduction.
Zhiwen Ren   +4 more
doaj   +1 more source

A study of fracture toughness and thermal property of nanostructured Yb2SiO5 environmental barrier coatings

open access: yesJournal of Materials Research and Technology, 2023
The objective of this study was to examine the characteristics of a nanostructured Yb2SiO5 coating and a conventional Yb2SiO5 coating, both prepared using atmospheric plasma spraying (APS).
Tao Zheng   +4 more
doaj   +1 more source

Fabrication of SiC Composites with Synergistic Toughening of Carbon Whisker and In Situ 3C-SiC Nanowire

open access: yesAdvances in Materials Science and Engineering, 2016
The SiC composites with synergistic toughening of carbon whisker and in situ 3C-SiC nanowire have been fabricated by hot press sinter technology and annealed treatment technology.
Zhang Yunlong   +3 more
doaj   +1 more source

Analysis of material removal behavior and subsurface damage in linear polishing of silicon wafers with tangential vibration on rough surfaces [PDF]

open access: yesAIP Advances
This research investigated the polishing treatment of silicon wafer rough surfaces using molecular dynamics simulations. The material removal behavior of tangential vibration polishing and linear polishing was analyzed in detail.
Shuilin Rao   +5 more
doaj   +1 more source

Behaviour and design of composite beams subjected to negative bending and compression [PDF]

open access: yes, 2012
This paper investigates the behaviour of steel–concrete composite beams subjected to the combined effectsof negative bending and axial compression. For this study, six full-scale tests were conducted on compositebeams subjected to negative moment while ...
Uy, Brian (R9735)   +7 more
core   +1 more source

Impact characterisation of doubly curved composite structure [PDF]

open access: yes, 2009
Under repeated impact composite domes subjected 6 J energy, changes locally with increasing drop height. The action of the dynamic load generates reactions at the support and bending moments at points on the surface of the composite.
David-West, O.S.   +2 more
core   +3 more sources

Recent Advances in Colloidal Photonic Crystal-Based Anti-Counterfeiting Materials

open access: yesCrystals, 2019
Colloidal photonic crystal (PC)-based anti-counterfeiting materials have been widely studied due to their inimitable structural colors and tunable photonic band gaps (PBGs) as well as their convenient identification methods.
Mengyao Pan   +9 more
doaj   +1 more source

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