Results 121 to 130 of about 629,041 (341)

Inflatable Kirigami Crawlers

open access: yesAdvanced Robotics Research, EarlyView.
Inflatable kirigami crawlers are fabricated from heat‐sealable textiles and achieve motion through cyclic pneumatic actuation. Strategically placed kirigami cuts guide asymmetric deformation, doubling contraction compared to traditional pouches and forming scale‐like surfaces.
Burcu Seyidoğlu   +3 more
wiley   +1 more source

Influence of section depth on the structural behaviour of reinforced concrete continuous deep beams [PDF]

open access: yes, 2007
YesAlthough the depth of reinforced concrete deep beams is much higher than that of slender beams, extensive existing tests on deep beams have focused on simply supported beams with a scaled depth below 600 mm.
Ashour, Ashraf, Yang, Keun-Hyeok
core   +1 more source

Damage of Concrete and Reinforcement of Reinforced-Concrete Foundations Caused by Environmental Effects

open access: yesProcedia Engineering, 2015
AbstractIn the course of their service period, concrete structures are exposed to a variety of impacts. A combination of exposure to aggressive effects, poorly constructed structural details, negligence of the durability issues, construction errors and underestimation of the importance of maintenance can lead to a severe damage of reinforced concrete ...
Nebojša Davidović   +3 more
openaire   +2 more sources

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

open access: yesAdvanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui   +5 more
wiley   +1 more source

Analysis of the time‐dependent behaviour of composite cross‐sections by Laplace‐transform

open access: yesJournal of Civil Engineering and Management, 2005
Composite structures consisting of precast and cast in‐situ concrete elements are increasingly common. These combinations demand a mechanical model which takes into account the time‐dependent behaviour and analysis of the different ages of the ...
Erich Raue, Thorsten Heidolf
doaj   +1 more source

An experiment on the use of disposable plastics as a reinforcement in concrete beams [PDF]

open access: yes
Illustrated here is the concept of reinforced concrete structures by the use of computer simulation and an inexpensive hands-on design experiment.
Chowdhury, Mostafiz R.
core   +1 more source

The Deteriorations of Reinforced Concrete and the Option of High Performances Reinforced Concrete

open access: yesProcedia Engineering, 2015
AbstractThe durability of a reinforced concrete construction could be defined as the ability of the two materials, concrete and the embedded reinforcing steel, to maintain their physical and mechanical performances in satisfactory security conditions during the prescribed service life of the structure and in prescribed working conditions. From this, it
openaire   +2 more sources

Cellulose‐Based Electrolytes in Rechargeable Zn‐Battery: An Overview

open access: yesAdvanced Sustainable Systems, EarlyView.
Zn‐ion battery with cellulose‐based electrolyte and diffused cathode such as MnO2 and V2O5 can be actually proposed as a rechargeable system for energy storage from renewable sources such as solar and wind, due to its relevant cycle life and the remarkably competitive low cost.
Jusef Hassoun   +2 more
wiley   +1 more source

Exploring Phonon Interference: Insights From a Nano‐Scale Silicon Double Slit Atomistic Simulation

open access: yesAdvanced Theory and Simulations, EarlyView.
Classical Waves at the Atomic Scale: Molecular Dynamics Reveal Phonon Interference in Silicon Nanostructures. Abstract In this study, the classic double‐slit experiment, originally developed for light waves is successfully adapted, to investigate the behavior of phonons in crystalline silicon.
Efstratios Nikidis   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy