Results 81 to 90 of about 3,620 (223)

Design and Applications of Multi‐Frequency Programmable Metamaterials for Adaptive Stealth

open access: yesAdvanced Functional Materials, Volume 36, Issue 5, 15 January 2026.
This article provides a comprehensive overview of metamaterials, including their fundamental principles, properties, synthesis techniques, and applications in stealth, as well as their challenges and future prospects. It covers topics that are more advanced than those typically discussed in existing review articles, while still being closely connected ...
Jonathan Tersur Orasugh   +4 more
wiley   +1 more source

A Fuzzy Cooperative Localisation Framework for Underwater Robotic Swarms

open access: yesSensors, 2020
This article proposes a holistic localisation framework for underwater robotic swarms to dynamically fuse multiple position estimates of an autonomous underwater vehicle while using fuzzy decision support system.
Adham Sabra, Wai-Keung Fung
doaj   +1 more source

Beyond Conventional Cooling: Advanced Micro/Nanostructures for Managing Extreme Heat Flux

open access: yesAdvanced Materials, Volume 38, Issue 5, 22 January 2026.
This review examines the design, application, and manufacturing of biomimetic or engineered micro/nanostructures for managing high heat‐flux in multi‐level electronics by enhancing conductive, convective, phase‐changing, and radiative heat transfer mechanisms, highlighting their potential for efficient, targeted thermal management, and future prospects.
Yuankun Zhang   +7 more
wiley   +1 more source

Modelos baseados em funções Kernel para localização de veículos autônomos subaquáticos [PDF]

open access: yes, 2015
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia de Automação e Sistemas, Florianópolis, 2015.Esta tese aborda a análise do sistema de localização acústica de veículos subaquáticos em ...
Pinheiro, Breno Carneiro
core  

Counterintuitive Results in Underwater Acoustic Communications

open access: yes, 2016
Book chapter. Underwater wireless communication using acoustic signals is a difficult problem and progress in finding robust solutions has been disappointing.
Daniel Rouseff, Rouseff, Daniel
core   +1 more source

Effective SNR Mapping and Link Adaptation Strategy for Next-Generation Underwater Acoustic Communications Networks: A Cross-Layer Approach

open access: yesIEEE Access, 2019
Interest in the study of next-generation underwater sensor networks for ocean investigation has increased owing to developing concerns over its utilization in areas, such as oceanography, commercial operations in maritime areas, and military surveillance.
Ishtiaq Ahmad, Kyunghi Chang
doaj   +1 more source

Underwater Acoustic simulations with a time variable acoustic propagation model [PDF]

open access: yes, 2010
The Time Variable Acoustic Propagation Model (TV-APM) was developed to simulate underwater acoustic propagation in time-variable environments. Such environment variability induces a strong Doppler channel spread, which is an important factor to test and ...
Silva, A.   +4 more
core  

Acoustic-radio cooperative marine information network

open access: yesDianxin kexue, 2018
The transmissions of ocean information have to cross the water-air interface.In this case,the information transmission network architecture requires the efficient integration of the underwater acoustic network and the radio network.However,the ...
Quansheng GUAN   +4 more
doaj   +2 more sources

A Novel Fractional Fourier Transform-Based ASK-OFDM System for Underwater Acoustic Communications

open access: yesApplied Sciences, 2017
A key research area in wireless transmission is underwater communications. It has a vital role in applications such as underwater sensor networks (UWSNs) and disaster detection.
Rami Ashri   +2 more
doaj   +1 more source

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