Results 241 to 250 of about 236,146 (309)

Composite Pentamode Metamaterials for Enhanced Wave Manipulation by Asymmetric Surface Structure

open access: yesSmall Structures, EarlyView.
The asymmetric pentamode surface structure can reduce the scattering from 26.3 dB to 0.96 dB and multiply the frequency range of wave manipulation. This approach results in a 95% improvement in compressive strength compared to pentamode structures with the same acoustic performance, enabling wider deepwater applications.
Liu He   +8 more
wiley   +1 more source

Electrostatic Flocking: Reborn to Embrace Multifunctional Applications

open access: yesSmall Structures, EarlyView.
This review provides a systematic summary and categorization of the principles, advantages, and functional applications of electrostatic flocking technology. It also explores the challenges associated with this technology, such as the selection of new materials and the design of innovative structures, while discussing potential applications ...
Meng Shen   +8 more
wiley   +1 more source

The Pier Luigi Nervi's concrete structure of Palazzetto dello Sport: Modeling and dynamic characterization

open access: yesStructural Concrete, EarlyView.
Abstract This paper presents a numerical and experimental study aimed at the modeling and dynamic characterization of the reinforced concrete structure of the Palazzetto dello Sport in Rome, designed and by Pier Luigi Nervi with Annibale Vitellozzi, and built by Nervi & Bartoli contractors in 1956‐57.
Jacopo Ciambella   +2 more
wiley   +1 more source

Density Classification with Non-Unitary Quantum Cellular Automata. [PDF]

open access: yesEntropy (Basel)
Wagner E   +3 more
europepmc   +1 more source

Experimental study on the impact of traffic‐induced vibrations on early‐age concrete

open access: yesStructural Concrete, EarlyView.
Abstract The COUNT (Concreting under Traffic) research project systematically examined the effects of traffic‐induced vibrations on early‐age, hardening concrete—a critical issue for bridge construction and renovation. Traffic closures are often imposed during such projects to mitigate potential damage from vibrations.
Christian Gasser   +6 more
wiley   +1 more source

Optimising PID Controllers for Multi‐Area Automatic Generation Control With Improved NSGA‐II

open access: yesCAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT Modern automated generation control (AGC) is increasingly complex, requiring precise frequency control for stability and operational accuracy. Traditional PID controller optimisation methods often struggle to handle nonlinearities and meet robustness requirements across diverse operational scenarios.
Yang Yang   +3 more
wiley   +1 more source

Overdamping of vibration resonances by liquid crystal elastomers. [PDF]

open access: yesSci Rep
Elmadih W   +3 more
europepmc   +1 more source

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